From 74c2ce8ae47a0bdc435f983fdd914d169838d56b Mon Sep 17 00:00:00 2001
From: xiaocheny214 <187097481+xiaocheny214@users.noreply.github.com>
Date: Sat, 29 Aug 2026 10:10:06 +0800
Subject: [PATCH] =?UTF-8?q?docs:=20=E8=A1=A5=E5=85=85=E6=95=B4=E4=BD=93?=
 =?UTF-8?q?=E6=9E=B6=E6=9E=84=E4=B8=8E=E5=86=85=E9=83=A8=E6=9C=8D=E5=8A=A1?=
 =?UTF-8?q?=E5=9B=BE?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/architecture/README.md                   |    11 +
 .../windup-internals.architecture.json        |   236 +
 docs/architecture/windup-internals.html       | 14930 ++++++++++++++++
 .../windup-system.architecture.json           |   204 +
 docs/architecture/windup-system.html          | 14899 +++++++++++++++
 5 files changed, 30280 insertions(+)
 create mode 100644 docs/architecture/README.md
 create mode 100644 docs/architecture/windup-internals.architecture.json
 create mode 100644 docs/architecture/windup-internals.html
 create mode 100644 docs/architecture/windup-system.architecture.json
 create mode 100644 docs/architecture/windup-system.html

diff --git a/docs/architecture/README.md b/docs/architecture/README.md
new file mode 100644
index 00000000..1c2ad16e
--- /dev/null
+++ b/docs/architecture/README.md
@@ -0,0 +1,11 @@
+# Windup 架构图
+
+浏览器直接打开 HTML（自带暗/亮色与导出）。JSON 是图的源文件。
+
+| 图 | 打开 | 源 |
+|---|---|---|
+| 整体架构（外部调用） | [windup-system.html](./windup-system.html) | [windup-system.architecture.json](./windup-system.architecture.json) |
+| 内部服务 | [windup-internals.html](./windup-internals.html) | [windup-internals.architecture.json](./windup-internals.architecture.json) |
+
+- **整体架构**：浏览器 → Nginx → FastAPI；生成与邮件经 Redis Stream 交给独立 Worker，再经 AI Gateway 调上游。
+- **内部服务**：项目/鉴权/积分、前端节点编排与 Agent、任务调度、资产后处理，以及浏览器 WebGL 三渲二出帧。
diff --git a/docs/architecture/windup-internals.architecture.json b/docs/architecture/windup-internals.architecture.json
new file mode 100644
index 00000000..cc4197ad
--- /dev/null
+++ b/docs/architecture/windup-internals.architecture.json
@@ -0,0 +1,236 @@
+{
+  "schema_version": 1,
+  "diagram_type": "architecture",
+  "meta": {
+    "title": "Windup 内部服务",
+    "locale": "zh-CN",
+    "quality_profile": "showcase",
+    "repository": {
+      "url": "https://github.com/xiaocheny214/DireSoul.git",
+      "revision": "ed500be30482ef8316f6f655bf0f06d19f1cce63"
+    },
+    "views": [
+      {
+        "id": "project-assets",
+        "label": "项目是容器",
+        "focus": ["workbench", "project", "workflow", "character"],
+        "note": "工作台打开的是项目；项目拥有 workflow_run 和角色，并保存朝向/尺寸等生成约束。"
+      },
+      {
+        "id": "account",
+        "label": "鉴权与积分",
+        "focus": ["workbench", "auth", "quota", "generation", "filter"],
+        "note": "JWT 认出用户；敏感词先于建任务和冻积分；积分按用户账户扣。"
+      },
+      {
+        "id": "dual-pipeline",
+        "label": "双出帧路径",
+        "focus": ["workflow", "generation", "bake", "aigw", "postprocess"],
+        "note": "编排只调任务调度。调度走 i2v；三渲二出帧指向 Gateway 做图生 3D，再下发浏览器出帧。"
+      }
+    ]
+  },
+  "components": [
+    {
+      "id": "auth",
+      "type": "security",
+      "label": "鉴权",
+      "sublabel": "JWT Bearer",
+      "tag": "JWT",
+      "pos": [40, 128],
+      "size": [124, 62],
+      "sources": [
+        { "path": "backend/packages/app/src/windup_app/web/middleware/auth.py", "line": 1, "label": "中间件" },
+        { "path": "backend/packages/app/src/windup_app/web/api/auth.py", "line": 29, "label": "/auth" },
+        { "path": "frontend/src/features/auth-guard/index.tsx", "line": 10, "label": "受保护路由" }
+      ]
+    },
+    {
+      "id": "agent",
+      "type": "frontend",
+      "label": "Quick Start Agent",
+      "sublabel": "浏览器沙箱",
+      "pos": [456, 128],
+      "size": [148, 62],
+      "sources": [
+        { "path": "frontend/src/features/quick-start-agent/production.ts", "line": 14, "label": "装配 Controller" },
+        { "path": "backend/packages/app/src/windup_app/web/api/agent.py", "line": 107, "label": "/ai 对话" }
+      ]
+    },
+    {
+      "id": "quota",
+      "type": "backend",
+      "label": "积分",
+      "sublabel": "按用户账户",
+      "pos": [860, 128],
+      "size": [132, 62],
+      "sources": [
+        { "path": "backend/packages/app/src/windup_app/server/quota/model.py", "line": 10, "label": "一人一行" },
+        { "path": "backend/packages/app/src/windup_app/server/orchestrator/billing.py", "line": 1, "label": "提交冻结" },
+        { "path": "backend/packages/app/src/windup_app/web/api/quota.py", "line": 1, "label": "/quota" }
+      ]
+    },
+    {
+      "id": "workbench",
+      "type": "frontend",
+      "label": "工作台",
+      "sublabel": "首页 / 试玩 / 导出",
+      "brand": "react",
+      "pos": [40, 300],
+      "size": [124, 62],
+      "sources": [
+        { "path": "frontend/src/app/app.tsx", "line": 35, "label": "路由表" }
+      ]
+    },
+    {
+      "id": "project",
+      "type": "database",
+      "label": "项目",
+      "sublabel": "工作区 · 生成约束",
+      "pos": [248, 300],
+      "size": [132, 62],
+      "sources": [
+        { "path": "backend/packages/app/src/windup_app/server/project/model.py", "line": 11, "label": "全局约束" },
+        { "path": "backend/packages/app/src/windup_app/web/api/project.py", "line": 33, "label": "/projects" }
+      ]
+    },
+    {
+      "id": "workflow",
+      "type": "frontend",
+      "label": "节点编排",
+      "sublabel": "前端感知 · 后端只存",
+      "pos": [456, 300],
+      "size": [148, 62],
+      "sources": [
+        { "path": "frontend/src/features/workflow-controller/controller.ts", "line": 157, "label": "Controller" },
+        { "path": "backend/packages/app/src/windup_app/web/api/workflow_run.py", "line": 11, "label": "只做存储" },
+        { "path": "backend/packages/app/src/windup_app/server/workflow_run/model.py", "line": 46, "label": "project_id" }
+      ]
+    },
+    {
+      "id": "filter",
+      "type": "security",
+      "label": "敏感词",
+      "sublabel": "提交前拦截",
+      "pos": [680, 300],
+      "size": [124, 62],
+      "sources": [
+        { "path": "backend/packages/app/src/windup_app/server/sensitive_word/service.py", "line": 58, "label": "assert_clean" },
+        { "path": "backend/packages/app/src/windup_app/server/orchestrator/service.py", "line": 63, "label": "先于建任务" },
+        { "path": "backend/packages/app/src/windup_app/web/api/agent.py", "line": 396, "label": "/ai 先拦" }
+      ]
+    },
+    {
+      "id": "generation",
+      "type": "backend",
+      "label": "任务调度",
+      "sublabel": "出图 / i2v / 出帧",
+      "pos": [860, 300],
+      "size": [132, 62],
+      "sources": [
+        { "path": "backend/packages/app/src/windup_app/web/api/generation.py", "line": 290, "label": "project_id" }
+      ]
+    },
+    {
+      "id": "aigw",
+      "type": "backend",
+      "label": "AI Gateway",
+      "sublabel": "Chat · 图 · 视频 · 3D",
+      "pos": [1160, 300],
+      "size": [132, 62],
+      "sources": [
+        { "path": "backend/packages/framework/src/windup_framework/gateway/__init__.py", "line": 1, "label": "Gateway" },
+        { "path": "backend/packages/app/src/windup_app/server/orchestrator/executor.py", "line": 988, "label": "Image/Video" },
+        { "path": "backend/packages/app/src/windup_app/server/orchestrator/render3d_service.py", "line": 392, "label": "图生 3D" }
+      ]
+    },
+    {
+      "id": "character",
+      "type": "database",
+      "label": "角色",
+      "sublabel": "项目下的产物",
+      "pos": [1160, 488],
+      "size": [132, 62],
+      "sources": [
+        { "path": "backend/packages/app/src/windup_app/server/character/model.py", "line": 1, "label": "隶属项目" },
+        { "path": "backend/packages/app/src/windup_app/server/character/model.py", "line": 80, "label": "project_id" }
+      ]
+    },
+    {
+      "id": "bake",
+      "type": "frontend",
+      "label": "三渲二出帧",
+      "sublabel": "浏览器 WebGL",
+      "pos": [456, 488],
+      "size": [148, 62],
+      "sources": [
+        { "path": "frontend/src/features/client-bake/index.ts", "line": 44, "label": "runClientBake" },
+        { "path": "frontend/src/features/client-bake/attach.ts", "line": 4, "label": "挂在生成任务上" },
+        { "path": "backend/packages/app/src/windup_app/server/orchestrator/executor.py", "line": 563, "label": "下发出帧" }
+      ]
+    },
+    {
+      "id": "postprocess",
+      "type": "backend",
+      "label": "资产后处理",
+      "sublabel": "抽帧 · 抠图 · 对齐",
+      "pos": [860, 488],
+      "size": [132, 62],
+      "sources": [
+        { "path": "backend/packages/ai_engine/src/windup_ai_engine/slicing/extract.py", "line": 35, "label": "抽帧" },
+        { "path": "backend/packages/ai_engine/src/windup_ai_engine/postprocess/__init__.py", "line": 1, "label": "像素化 / 对齐" },
+        { "path": "backend/packages/framework/src/windup_framework/providers/matte.py", "line": 1, "label": "抠图" }
+      ]
+    }
+  ],
+  "boundaries": [
+    { "kind": "region", "label": "浏览器", "wraps": ["agent", "workflow", "bake"] },
+    { "kind": "region", "label": "应用机", "wraps": ["quota", "filter", "generation", "aigw", "postprocess"] }
+  ],
+  "connections": [
+    { "id": "open-project", "from": "workbench", "to": "project", "label": "打开项目", "variant": "emphasis" },
+    { "id": "login", "from": "workbench", "to": "auth", "label": "登录 JWT", "fromSide": "top", "toSide": "bottom" },
+    { "id": "project-flow", "from": "project", "to": "workflow", "label": "挂流程", "variant": "emphasis" },
+    { "id": "agent-flow", "from": "agent", "to": "workflow", "label": "代跑节点", "fromSide": "bottom", "toSide": "top", "labelDy": 24 },
+    { "id": "flow-filter", "from": "workflow", "to": "filter", "label": "先拦", "variant": "emphasis" },
+    { "id": "filter-gen", "from": "filter", "to": "generation", "label": "通过", "variant": "emphasis" },
+    { "id": "gen-gw", "from": "generation", "to": "aigw", "label": "出图 / i2v", "variant": "emphasis" },
+    { "id": "gen-quota", "from": "generation", "to": "quota", "label": "冻结积分", "fromSide": "top", "toSide": "bottom" },
+    { "id": "gen-post", "from": "generation", "to": "postprocess", "label": "视频后处理", "fromSide": "bottom", "toSide": "top", "labelDy": 24 },
+    { "id": "gen-bake", "from": "generation", "to": "bake", "label": "下发出帧", "fromSide": "left", "toSide": "top" },
+    { "id": "bake-gw", "from": "bake", "to": "aigw", "label": "图生 3D", "fromSide": "bottom", "toSide": "right" },
+    { "id": "bake-post", "from": "bake", "to": "postprocess", "label": "交帧" },
+    { "id": "post-char", "from": "postprocess", "to": "character", "label": "写入角色" },
+    { "id": "agent-filter", "from": "agent", "to": "filter", "label": "对话 /ai", "variant": "dashed", "fromSide": "top", "toSide": "top" },
+    { "id": "filter-chat", "from": "filter", "to": "aigw", "label": "过了才调", "variant": "dashed", "fromSide": "top", "toSide": "top", "via": [[742, 80], [1226, 80]] }
+  ],
+  "cards": [
+    {
+      "dot": "cyan",
+      "title": "项目 · 鉴权 · 积分",
+      "items": [
+        "项目是用户名下的工作区：拥有 workflow_run 和角色，并保存朝向/尺寸等生成约束",
+        "JWT 认出用户；敏感词在建任务和冻积分之前拦 prompt，/ai 对话进 Gateway 前同样拦",
+        "积分账户一人一行，提交出图/i2v 时冻结；不按项目扣，Agent 对话也不走这本账"
+      ]
+    },
+    {
+      "dot": "emerald",
+      "title": "为什么 Agent 在前端",
+      "items": [
+        "节点编排由前端感知：Controller 跑图，/workflow-runs 只全量存 nodes，后端不执行",
+        "Agent 代跑的是同一套前端节点，必须和编排状态在同一个浏览器里",
+        "浏览器沙箱隔离工具与对话循环；对话仍经 /ai 进 Gateway，密钥不进前端"
+      ]
+    },
+    {
+      "dot": "amber",
+      "title": "双出帧路径",
+      "items": [
+        "视频：i2v 经 Gateway 拿回后，抽帧、抠图、像素化、脚线对齐都在应用机 Worker 上做",
+        "编排只调任务调度，不直连出帧。i2v 经 Gateway 后资产后处理；三渲二出帧指向 Gateway 做图生 3D / 绑骨，调度再下发浏览器出帧",
+        "出帧只做 WebGL。两条线都写入角色，成色闸仍在资产后处理"
+      ]
+    }
+  ]
+}
diff --git a/docs/architecture/windup-internals.html b/docs/architecture/windup-internals.html
new file mode 100644
index 00000000..a8524b49
--- /dev/null
+++ b/docs/architecture/windup-internals.html
@@ -0,0 +1,14930 @@
+<!DOCTYPE html>
+<html lang="zh-CN" data-theme="dark" data-preset="classic">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta name="generator" content="archify 2.16.0-dev.0">
+  <title>Windup 内部服务</title>
+  <script>
+    // Resolve the theme before first paint so light-preference users don't
+    // see a dark flash. The toolbar script below re-applies with UI state.
+    (function () {
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+        try {
+          var param = new URLSearchParams(window.location.search).get('theme');
+          if (param === 'light' || param === 'dark') theme = param;
+          if (new URLSearchParams(window.location.search).get('embed') === '1') {
+            document.documentElement.setAttribute('data-embed', 'true');
+          }
+          if (new URLSearchParams(window.location.search).get('present') === '1') {
+            document.documentElement.setAttribute('data-present', 'true');
+          }
+        } catch (_) {}
+        if (!theme) {
+          try { theme = localStorage.getItem('archify-theme'); } catch (_) {}
+        }
+        if (theme !== 'light' && theme !== 'dark') {
+          theme = window.matchMedia('(prefers-color-scheme: light)').matches ? 'light' : 'dark';
+        }
+        document.documentElement.setAttribute('data-theme', theme);
+      } catch (_) {}
+    })();
+  </script>
+  <!-- Async font load: a blackholed network must not block first paint.
+       The body font stack falls back to system monospace until it lands. -->
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&display=swap"
+        rel="stylesheet" media="print" onload="this.media='all'">
+  <noscript>
+    <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&display=swap" rel="stylesheet">
+  </noscript>
+  <style>
+    /* ==========================================================
+       THEME VARIABLES — switch by toggling [data-theme] on <html>
+       ========================================================== */
+    :root,
+    [data-theme="dark"] {
+      --bg: #020617;
+      --grid: #1e293b;
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+      --toolbar-bg: rgba(7, 16, 30, 0.86);
+      --toolbar-border: #29415f;
+      --toolbar-menu-bg: #07101e;
+    }
+
+    [data-preset="signal-flow"][data-theme="light"] {
+      --bg: #f4f9fc;
+      --grid: #d4e5ee;
+      --panel: rgba(255, 255, 255, 0.82);
+      --panel-border: #bfd5e2;
+      --lane-fill: rgba(232, 243, 248, 0.62);
+      --lane-stroke: #a9c5d5;
+      --text: #102638;
+      --text-muted: #587287;
+      --text-dim: #8aa2b4;
+      --text-faint: #668397;
+      --mask: #ffffff;
+      --frontend-fill: rgba(6, 182, 212, 0.09);
+      --frontend-stroke: #0789a1;
+      --backend-fill: rgba(5, 150, 105, 0.09);
+      --backend-stroke: #087f69;
+      --database-fill: rgba(124, 58, 237, 0.09);
+      --database-stroke: #7254c7;
+      --cloud-fill: rgba(217, 119, 6, 0.08);
+      --cloud-stroke: #b9670b;
+      --security-fill: rgba(225, 29, 72, 0.08);
+      --security-stroke: #c53a59;
+      --messagebus-fill: rgba(234, 88, 12, 0.08);
+      --messagebus-stroke: #c65f27;
+      --external-fill: rgba(100, 116, 139, 0.1);
+      --external-stroke: #607a8c;
+      --arrow: #7b97aa;
+      --arrow-emphasis: #0d9488;
+    }
+
+    /* ==========================================================
+       BLUEPRINT — a review-first drafting preset for deployment,
+       infrastructure, and technical design documentation. It keeps
+       the same semantic palette and geometry while trading glow for
+       precise grid contrast, squared materials, and drafting marks.
+       ========================================================== */
+    [data-preset="blueprint"][data-theme="dark"] {
+      --bg: #06131f;
+      --grid: #17425a;
+      --panel: rgba(7, 27, 43, 0.9);
+      --panel-border: #27627f;
+      --lane-fill: rgba(10, 43, 66, 0.36);
+      --lane-stroke: #34799a;
+      --text: #e3f6ff;
+      --text-muted: #91b8ca;
+      --text-dim: #557e92;
+      --text-faint: #739caf;
+      --mask: #0a2031;
+      --frontend-fill: rgba(26, 157, 193, 0.14);
+      --frontend-stroke: #66d9ef;
+      --backend-fill: rgba(31, 155, 124, 0.13);
+      --backend-stroke: #69dfbd;
+      --database-fill: rgba(120, 105, 196, 0.14);
+      --database-stroke: #b4a8ff;
+      --cloud-fill: rgba(197, 145, 43, 0.13);
+      --cloud-stroke: #ffd166;
+      --security-fill: rgba(199, 76, 104, 0.13);
+      --security-stroke: #ff8da1;
+      --messagebus-fill: rgba(207, 112, 49, 0.13);
+      --messagebus-stroke: #ffad66;
+      --external-fill: rgba(84, 119, 139, 0.18);
+      --external-stroke: #a7cad9;
+      --arrow: #78a3b7;
+      --arrow-emphasis: #64dfc1;
+      --toolbar-bg: rgba(7, 28, 45, 0.92);
+      --toolbar-border: #34799a;
+      --toolbar-text: #d8f3ff;
+      --toolbar-hover: rgba(18, 58, 83, 0.95);
+      --toolbar-menu-bg: #0a2031;
+    }
+
+    [data-preset="blueprint"][data-theme="light"] {
+      --bg: #edf7fa;
+      --grid: #b5d5e1;
+      --panel: rgba(249, 253, 255, 0.94);
+      --panel-border: #78aabd;
+      --lane-fill: rgba(210, 232, 240, 0.42);
+      --lane-stroke: #83b2c4;
+      --text: #123344;
+      --text-muted: #4e7486;
+      --text-dim: #86a6b4;
+      --text-faint: #668c9d;
+      --mask: #f9fdff;
+      --frontend-fill: rgba(8, 145, 178, 0.08);
+      --frontend-stroke: #087f9c;
+      --backend-fill: rgba(5, 128, 101, 0.08);
+      --backend-stroke: #08755f;
+      --database-fill: rgba(100, 75, 180, 0.08);
+      --database-stroke: #6757a8;
+      --cloud-fill: rgba(181, 120, 15, 0.08);
+      --cloud-stroke: #a86609;
+      --security-fill: rgba(190, 48, 80, 0.07);
+      --security-stroke: #b32f50;
+      --messagebus-fill: rgba(196, 81, 22, 0.07);
+      --messagebus-stroke: #b65120;
+      --external-fill: rgba(79, 112, 128, 0.08);
+      --external-stroke: #506f7e;
+      --arrow: #6d93a5;
+      --arrow-emphasis: #087f69;
+      --toolbar-bg: rgba(247, 252, 254, 0.94);
+      --toolbar-border: #8ab5c5;
+      --toolbar-text: #294f61;
+      --toolbar-hover: #ffffff;
+      --toolbar-menu-bg: #f9fdff;
+    }
+
+    /* ==========================================================
+       EDITORIAL — a warm, publication-minded preset for design
+       reviews, launch notes, and documentation. The diagram keeps
+       the same semantic palette and exact geometry, but trades
+       software chrome for paper, ink, ruled structure, and one
+       restrained vermilion accent.
+       ========================================================== */
+    [data-preset="editorial"][data-theme="dark"] {
+      --bg: #181611;
+      --grid: #39342a;
+      --panel: rgba(35, 31, 24, 0.96);
+      --panel-border: #625a4a;
+      --lane-fill: rgba(52, 46, 35, 0.46);
+      --lane-stroke: #726957;
+      --text: #f4eddf;
+      --text-muted: #b9ae9b;
+      --text-dim: #776e60;
+      --text-faint: #9d917e;
+      --mask: #231f18;
+      --frontend-fill: rgba(43, 133, 142, 0.16);
+      --frontend-stroke: #7fc6c7;
+      --backend-fill: rgba(63, 132, 92, 0.16);
+      --backend-stroke: #8fc29e;
+      --database-fill: rgba(117, 91, 141, 0.17);
+      --database-stroke: #c0a4d0;
+      --cloud-fill: rgba(170, 119, 49, 0.16);
+      --cloud-stroke: #d8ad68;
+      --security-fill: rgba(157, 69, 65, 0.17);
+      --security-stroke: #df9085;
+      --messagebus-fill: rgba(174, 79, 42, 0.16);
+      --messagebus-stroke: #df946f;
+      --external-fill: rgba(126, 115, 96, 0.18);
+      --external-stroke: #b8ad99;
+      --arrow: #948978;
+      --arrow-emphasis: #dd6b3d;
+      --toolbar-bg: rgba(35, 31, 24, 0.92);
+      --toolbar-border: #625a4a;
+      --toolbar-text: #eee5d5;
+      --toolbar-hover: #302a20;
+      --toolbar-menu-bg: #231f18;
+    }
+
+    [data-preset="editorial"][data-theme="light"] {
+      --bg: #f2eee5;
+      --grid: #d8d0c2;
+      --panel: rgba(251, 248, 241, 0.97);
+      --panel-border: #c4b9a6;
+      --lane-fill: rgba(229, 221, 207, 0.42);
+      --lane-stroke: #b8aa94;
+      --text: #242018;
+      --text-muted: #6f6658;
+      --text-dim: #a09788;
+      --text-faint: #817767;
+      --mask: #fbf8f1;
+      --frontend-fill: rgba(31, 117, 126, 0.09);
+      --frontend-stroke: #287e84;
+      --backend-fill: rgba(42, 119, 75, 0.09);
+      --backend-stroke: #397b53;
+      --database-fill: rgba(105, 75, 130, 0.09);
+      --database-stroke: #765d86;
+      --cloud-fill: rgba(157, 103, 31, 0.1);
+      --cloud-stroke: #9a671f;
+      --security-fill: rgba(153, 58, 52, 0.09);
+      --security-stroke: #9e463f;
+      --messagebus-fill: rgba(182, 70, 27, 0.09);
+      --messagebus-stroke: #ad4b25;
+      --external-fill: rgba(101, 91, 75, 0.09);
+      --external-stroke: #746b5e;
+      --arrow: #8a806f;
+      --arrow-emphasis: #bb4c23;
+      --toolbar-bg: rgba(251, 248, 241, 0.94);
+      --toolbar-border: #c4b9a6;
+      --toolbar-text: #40392f;
+      --toolbar-hover: #fffdf8;
+      --toolbar-menu-bg: #fbf8f1;
+    }
+
+    * { margin: 0; padding: 0; box-sizing: border-box; }
+
+    body {
+      font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, 'DejaVu Sans Mono', 'Liberation Mono', 'Noto Sans Mono CJK SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', monospace;
+      background: var(--bg);
+      min-height: 100vh;
+      padding: 2rem;
+      color: var(--text);
+      transition: background 0.2s ease, color 0.2s ease;
+    }
+
+    html[data-preset="signal-flow"] body {
+      background-image:
+        radial-gradient(circle at 18% -8%, rgba(34, 211, 238, 0.14), transparent 34rem),
+        radial-gradient(circle at 92% 18%, rgba(139, 92, 246, 0.12), transparent 30rem);
+      background-attachment: fixed;
+    }
+    html[data-preset="signal-flow"][data-theme="light"] body {
+      background-image:
+        radial-gradient(circle at 18% -8%, rgba(6, 182, 212, 0.12), transparent 34rem),
+        radial-gradient(circle at 92% 18%, rgba(139, 92, 246, 0.08), transparent 30rem);
+    }
+    html[data-preset="blueprint"] body {
+      background-image:
+        linear-gradient(var(--grid) 1px, transparent 1px),
+        linear-gradient(90deg, var(--grid) 1px, transparent 1px);
+      background-size: 32px 32px;
+      background-position: -1px -1px;
+      background-attachment: fixed;
+    }
+    html[data-preset="editorial"] body {
+      background-image:
+        linear-gradient(90deg, transparent 0, transparent 5.4rem, color-mix(in srgb, var(--security-stroke) 18%, transparent) 5.4rem, color-mix(in srgb, var(--security-stroke) 18%, transparent) calc(5.4rem + 1px), transparent calc(5.4rem + 1px)),
+        repeating-linear-gradient(0deg, transparent 0, transparent 31px, color-mix(in srgb, var(--grid) 36%, transparent) 31px, color-mix(in srgb, var(--grid) 36%, transparent) 32px);
+      background-attachment: fixed;
+    }
+
+    /* Gallery/embed mode keeps the generated artifact as the source of truth
+       while presenting only its diagram surface inside a proof card. */
+    html[data-embed="true"] body {
+      min-height: 0;
+      padding: 0;
+      overflow: hidden;
+      background: var(--bg);
+      background-image: none;
+    }
+    html[data-embed="true"] .toolbar,
+    html[data-embed="true"] .header,
+    html[data-embed="true"] .cards,
+    html[data-embed="true"] .diagram-nav,
+    html[data-embed="true"] .overview-map,
+    html[data-embed="true"] .focus-chip,
+    html[data-embed="true"] .route-probe,
+    html[data-embed="true"] .semantic-lens,
+    html[data-embed="true"] .diagram-guide,
+    html[data-embed="true"] .node-finder,
+    html[data-embed="true"] .guided-views { display: none !important; }
+    html[data-embed="true"] .container { max-width: none; }
+    html[data-embed="true"] .diagram-container {
+      padding: 0.5rem;
+      border: 0;
+      border-radius: 0;
+      box-shadow: none;
+    }
+    html[data-embed="true"] .diagram-container svg { min-width: 0; }
+
+    /* Share Chapter Cue lives in the HTML viewer layer, not inside the SVG.
+       It gives one-shot embeds a title, authored note, truthful stop order,
+       and lifecycle state while canonical diagram geometry stays untouched. */
+    .share-chapter-cue { display: none; }
+    html[data-embed="true"][data-share-playback="true"] .share-chapter-cue:not([hidden]),
+    html[data-embed="true"][data-share-moment="true"] .share-chapter-cue:not([hidden]) {
+      position: absolute;
+      z-index: 18;
+      top: 0.85rem;
+      left: 50%;
+      display: grid;
+      grid-template-columns: auto minmax(9rem, 13.5rem) minmax(0, 1fr);
+      align-items: center;
+      gap: 0.45rem 0.85rem;
+      width: min(52rem, calc(100% - 1.5rem));
+      min-height: 3.35rem;
+      padding: 0.55rem 0.75rem 0.65rem;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 42%, var(--toolbar-border));
+      border-radius: 0.75rem;
+      background:
+        linear-gradient(115deg, color-mix(in srgb, var(--frontend-fill) 52%, transparent), transparent 45%),
+        color-mix(in srgb, var(--toolbar-menu-bg) 92%, transparent);
+      color: var(--toolbar-text);
+      box-shadow: 0 14px 42px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.045);
+      backdrop-filter: blur(16px);
+      pointer-events: none;
+      animation: archify-share-cue-enter 280ms cubic-bezier(0.22, 1, 0.36, 1) both;
+    }
+    html[data-preset="blueprint"] .share-chapter-cue {
+      border-radius: 0.2rem;
+      background:
+        linear-gradient(90deg, color-mix(in srgb, var(--frontend-fill) 46%, transparent), transparent 36%),
+        var(--toolbar-menu-bg);
+      box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2);
+      backdrop-filter: none;
+    }
+    html[data-preset="editorial"] .share-chapter-cue {
+      border-color: var(--panel-border);
+      background:
+        linear-gradient(90deg, color-mix(in srgb, var(--security-fill) 58%, transparent), transparent 42%),
+        var(--toolbar-menu-bg);
+      box-shadow: 0 10px 30px color-mix(in srgb, #000 18%, transparent);
+      backdrop-filter: none;
+    }
+    html[data-preset="editorial"] .share-chapter-state { color: var(--arrow-emphasis); }
+    html[data-preset="editorial"] .share-chapter-state::before {
+      border-radius: 0;
+      box-shadow: none;
+      transform: rotate(45deg) scale(0.8);
+    }
+    .share-chapter-index {
+      display: grid;
+      gap: 0.12rem;
+      min-width: 5rem;
+      padding-right: 0.75rem;
+      border-right: 1px solid var(--toolbar-border);
+    }
+    .share-chapter-state {
+      display: inline-flex;
+      align-items: center;
+      gap: 0.36rem;
+      color: var(--frontend-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.14em;
+      text-transform: uppercase;
+    }
+    .share-chapter-state::before {
+      width: 0.38rem;
+      height: 0.38rem;
+      border-radius: 50%;
+      background: currentColor;
+      box-shadow: 0 0 10px currentColor;
+      content: '';
+    }
+    .share-chapter-cue[data-state="playing"] .share-chapter-state::before {
+      animation: archify-share-cue-pulse 1.15s ease-in-out infinite;
+    }
+    .share-chapter-count {
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      font-weight: 700;
+      letter-spacing: 0.08em;
+      text-transform: uppercase;
+    }
+    .share-chapter-copy { min-width: 0; }
+    .share-chapter-copy strong,
+    .share-chapter-copy small,
+    .share-chapter-route {
+      display: block;
+      overflow: hidden;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .share-chapter-copy strong {
+      color: var(--toolbar-text);
+      font-size: 0.6875rem;
+      line-height: 1.35;
+    }
+    .share-chapter-copy small {
+      margin-top: 0.08rem;
+      color: var(--text-muted);
+      font-size: 0.5rem;
+      line-height: 1.35;
+    }
+    .share-chapter-route {
+      color: color-mix(in srgb, var(--frontend-stroke) 76%, var(--text-muted));
+      font-size: 0.5625rem;
+      font-weight: 650;
+      letter-spacing: 0.015em;
+      text-align: right;
+    }
+    .share-chapter-progress {
+      position: absolute;
+      right: 0;
+      bottom: 0;
+      left: 0;
+      height: 2px;
+      overflow: hidden;
+      background: color-mix(in srgb, var(--toolbar-border) 72%, transparent);
+    }
+    .share-chapter-progress span {
+      display: block;
+      width: 100%;
+      height: 100%;
+      background: linear-gradient(90deg, var(--frontend-stroke), var(--database-stroke));
+      box-shadow: 0 0 12px var(--frontend-stroke);
+      transform: scaleX(0);
+      transform-origin: left center;
+    }
+
+    /* Presentation Stage is a viewer-only layer: it gives the live diagram
+       the viewport while keeping guided views, theme, focus, and exports real.
+       Embed mode wins when both query parameters are present. */
+    html[data-present="true"]:not([data-embed="true"]) body {
+      height: 100dvh;
+      min-height: 0;
+      padding: 1rem;
+      overflow: hidden;
+    }
+    html[data-present="true"]:not([data-embed="true"]) .container {
+      display: flex;
+      flex-direction: column;
+      gap: 0.75rem;
+      width: 100%;
+      max-width: none;
+      height: calc(100dvh - 2rem);
+    }
+    html[data-present="true"]:not([data-embed="true"]) .header {
+      flex: none;
+      min-width: 0;
+      margin: 0;
+      padding-right: 23rem;
+    }
+    html[data-present="true"]:not([data-embed="true"]) .header-row { margin-bottom: 0.25rem; }
+    html[data-present="true"]:not([data-embed="true"]) .subtitle {
+      overflow: hidden;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    html[data-present="true"]:not([data-embed="true"]) .guided-views {
+      flex: none;
+      margin-bottom: 0;
+    }
+    html[data-present="true"]:not([data-embed="true"]) .diagram-container {
+      display: flex;
+      flex: 1 1 auto;
+      align-items: center;
+      justify-content: center;
+      min-height: 0;
+      padding: 0.75rem;
+      padding-bottom: calc(0.75rem + var(--archify-nav-reserve));
+    }
+    html[data-present="true"]:not([data-embed="true"]) .diagram-container > svg {
+      flex: 1 1 auto;
+      height: 100%;
+      min-height: 0;
+      width: 100%;
+      min-width: 0;
+    }
+    html[data-present="true"]:not([data-embed="true"]) .cards { display: none; }
+    html[data-present="true"]:not([data-embed="true"]) #btn-present {
+      border-color: var(--frontend-stroke);
+      color: var(--frontend-stroke);
+    }
+
+    /* The reader owns only the outer scale. Wide diagrams keep one authored
+       SVG/viewBox while the runtime chooses a desktop width from the actual
+       vertical budget. This avoids device-specific files and breakpoint
+       jumps between a laptop and a tall monitor. */
+    .container {
+      width: 100%;
+      max-width: var(--archify-reader-width, 1440px);
+      margin: 0 auto;
+    }
+    @media (min-width: 768px) and (max-height: 920px) {
+      .header { margin-bottom: 1rem; }
+      .diagram-container { padding: 1rem; }
+      .cards { margin-top: 1rem; }
+      .card { padding: 1rem; }
+    }
+
+    .header { margin-bottom: 1.5rem; padding-right: 29.5rem; }
+
+    html[data-preset="signal-flow"] .header,
+    html[data-preset="blueprint"] .header,
+    html[data-preset="editorial"] .header { padding-right: 29.5rem; }
+
+    .header-row {
+      display: flex;
+      align-items: center;
+      gap: 1rem;
+      margin-bottom: 0.5rem;
+    }
+
+    .pulse-dot {
+      width: 12px;
+      height: 12px;
+      background: var(--frontend-stroke);
+      border-radius: 50%;
+      animation: none;
+    }
+
+    html[data-motion-capable="true"] .pulse-dot { animation: pulse 2s infinite; }
+
+    @keyframes pulse {
+      0%, 100% { opacity: 1; }
+      50% { opacity: 0.5; }
+    }
+
+    h1 {
+      font-size: 1.5rem;
+      font-weight: 700;
+      letter-spacing: -0.025em;
+    }
+
+    .subtitle {
+      color: var(--text-muted);
+      font-size: 0.875rem;
+      margin-left: 1.75rem;
+    }
+
+    html[data-preset="signal-flow"] .header-row::after {
+      content: attr(data-preset-badge-signal-flow);
+      margin-left: auto;
+      color: var(--frontend-stroke);
+      border: 1px solid var(--frontend-stroke);
+      border-radius: 999px;
+      padding: 0.28rem 0.6rem;
+      font-size: 0.625rem;
+      letter-spacing: 0.12em;
+      opacity: 0.82;
+      box-shadow: 0 0 20px rgba(34, 211, 238, 0.12);
+      white-space: nowrap;
+    }
+
+    html[data-preset="blueprint"] .pulse-dot {
+      width: 10px;
+      height: 10px;
+      border: 1px solid var(--frontend-stroke);
+      border-radius: 1px;
+      background: transparent;
+      box-shadow: inset 0 0 0 2px var(--bg);
+      transform: rotate(45deg);
+      animation: none;
+    }
+    html[data-preset="blueprint"] .header-row::after {
+      content: attr(data-preset-badge-blueprint);
+      margin-left: auto;
+      padding: 0.28rem 0.55rem;
+      border-top: 1px solid var(--frontend-stroke);
+      border-bottom: 1px solid var(--frontend-stroke);
+      color: var(--frontend-stroke);
+      font-size: 0.5625rem;
+      font-weight: 700;
+      letter-spacing: 0.14em;
+      white-space: nowrap;
+    }
+
+    html[data-preset="editorial"] h1,
+    html[data-preset="editorial"] .card h3 {
+      font-family: Georgia, 'Times New Roman', 'Songti SC', STSong, serif;
+      letter-spacing: -0.02em;
+    }
+    html[data-preset="editorial"] h1 { font-size: 1.72rem; font-weight: 600; }
+    html[data-preset="editorial"] .pulse-dot {
+      width: 9px;
+      height: 9px;
+      border: 1px solid var(--arrow-emphasis);
+      border-radius: 0;
+      background: var(--arrow-emphasis);
+      box-shadow: 0 0 0 3px color-mix(in srgb, var(--arrow-emphasis) 14%, transparent);
+      transform: rotate(45deg);
+      animation: none;
+    }
+    html[data-preset="editorial"] .header-row::after {
+      content: attr(data-preset-badge-editorial);
+      margin-left: auto;
+      padding: 0.32rem 0 0.24rem;
+      border-bottom: 2px solid var(--arrow-emphasis);
+      color: var(--arrow-emphasis);
+      font-family: Georgia, 'Times New Roman', serif;
+      font-size: 0.625rem;
+      font-style: italic;
+      font-weight: 600;
+      letter-spacing: 0.08em;
+      white-space: nowrap;
+    }
+
+    .diagram-container {
+      --archify-nav-reserve: 0px;
+      background: var(--panel);
+      border-radius: 1rem;
+      border: 1px solid var(--panel-border);
+      padding: 1.5rem;
+      padding-bottom: calc(1.5rem + var(--archify-nav-reserve));
+      overflow: hidden;
+      position: relative;
+    }
+
+    html[data-preset="signal-flow"] .diagram-container {
+      position: relative;
+      overflow: hidden;
+      background: linear-gradient(180deg, rgba(8, 20, 38, 0.82), rgba(3, 8, 18, 0.94));
+      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04), 0 28px 80px rgba(0, 0, 0, 0.34);
+    }
+    html[data-preset="signal-flow"][data-theme="light"] .diagram-container {
+      background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(237, 246, 250, 0.94));
+      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72), 0 24px 60px rgba(45, 78, 99, 0.12);
+    }
+    html[data-preset="blueprint"] .diagram-container {
+      border-color: var(--panel-border);
+      border-radius: 0.35rem;
+      background: var(--panel);
+      box-shadow:
+        inset 0 0 0 1px color-mix(in srgb, var(--panel-border) 34%, transparent),
+        0 18px 48px rgba(0, 0, 0, 0.16);
+    }
+    html[data-preset="blueprint"] .diagram-container::after {
+      content: "";
+      position: absolute;
+      z-index: 10;
+      inset: 0.7rem;
+      pointer-events: none;
+      background:
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) left top / 1.35rem 1px no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) left top / 1px 1.35rem no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) right top / 1.35rem 1px no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) right top / 1px 1.35rem no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) left bottom / 1.35rem 1px no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) left bottom / 1px 1.35rem no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) right bottom / 1.35rem 1px no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) right bottom / 1px 1.35rem no-repeat;
+      opacity: 0.58;
+    }
+    html[data-preset="editorial"] .diagram-container {
+      overflow: hidden;
+      border-color: var(--panel-border);
+      border-radius: 0.38rem;
+      background:
+        linear-gradient(90deg, color-mix(in srgb, var(--security-fill) 58%, transparent), transparent 12%),
+        var(--panel);
+      box-shadow:
+        0 1px 0 color-mix(in srgb, var(--text) 6%, transparent),
+        0 18px 48px color-mix(in srgb, #000 19%, transparent);
+    }
+    html[data-preset="editorial"] .diagram-container::after {
+      position: absolute;
+      z-index: 10;
+      top: 0.72rem;
+      right: 1.25rem;
+      padding: 0.2rem 0.52rem;
+      border: 1px solid var(--panel-border);
+      background: var(--panel);
+      color: var(--arrow-emphasis);
+      content: attr(data-preset-badge-editorial-plate);
+      font-family: Georgia, 'Times New Roman', serif;
+      font-size: 0.52rem;
+      font-style: italic;
+      font-weight: 600;
+      letter-spacing: 0.09em;
+      pointer-events: none;
+    }
+    html[data-embed="true"][data-preset="editorial"] .diagram-container::after { display: none; }
+    html[data-motion-capable="true"][data-preset="signal-flow"][data-ambient-motion="running"] .diagram-container::before {
+      content: "";
+      position: absolute;
+      inset: 0;
+      pointer-events: none;
+      background: linear-gradient(115deg, transparent 28%, rgba(103, 232, 249, 0.035) 48%, transparent 68%);
+      transform: translateX(-70%);
+      animation: archify-signal-scan 4.8s ease-in-out 1 both;
+    }
+
+    /* Motion Governor gives the reader a real static state and gives the
+       strongest semantic action the only motion budget. Atmosphere resets to
+       its authored base instead of freezing mid-cycle. Static artifacts never
+       start a decorative pulse or scan. */
+    html:not([data-motion-capable="true"]) svg[data-animation="trace"] [data-animate] {
+      animation: none !important;
+    }
+    html[data-motion="still"] .pulse-dot,
+    html[data-motion="still"] .diagram-container::before,
+    html[data-motion="still"] svg[data-animation="trace"] [data-animate],
+    html[data-motion-owner] .pulse-dot,
+    html[data-motion-owner] .diagram-container::before,
+    html[data-motion-owner] svg[data-animation="trace"] [data-animate],
+    html[data-embed="true"] .pulse-dot,
+    html[data-embed="true"] .diagram-container::before,
+    html[data-share-playback="true"] .pulse-dot,
+    html[data-share-playback="true"] .diagram-container::before,
+    html[data-document-hidden="true"] .pulse-dot,
+    html[data-document-hidden="true"] .diagram-container::before,
+    html[data-document-hidden="true"] svg[data-animation="trace"] [data-animate] {
+      animation: none !important;
+    }
+    html[data-motion="still"] .diagram-container::before,
+    html[data-motion-owner] .diagram-container::before,
+    html[data-embed="true"] .diagram-container::before,
+    html[data-share-playback="true"] .diagram-container::before {
+      opacity: 0;
+    }
+    html[data-motion="still"] .guided-view-progress span,
+    html[data-motion="still"] .guided-story-caption,
+    html[data-motion="still"] .story-trail-flow,
+    html[data-motion="still"] .intent-trace-flow,
+    html[data-motion="still"] .route-probe-flow,
+    html[data-motion="still"] .route-journey-flow,
+    html[data-motion="still"] .semantic-lens-flow,
+    html[data-motion="still"] .diagram-guide,
+    html[data-motion="still"] [data-story-step],
+    html[data-motion="still"] .overview-map-live,
+    html[data-motion="still"] .guided-view-stop,
+    html[data-motion="still"] .share-chapter-cue,
+    html[data-motion="still"] .share-chapter-state::before,
+    html[data-motion="still"] .share-chapter-progress span,
+    html[data-document-hidden="true"] .guided-view-progress span,
+    html[data-document-hidden="true"] .story-trail-flow,
+    html[data-document-hidden="true"] .intent-trace-flow,
+    html[data-document-hidden="true"] .route-probe-flow,
+    html[data-document-hidden="true"] .route-journey-flow,
+    html[data-document-hidden="true"] .semantic-lens-flow,
+    html[data-document-hidden="true"] .diagram-guide,
+    html[data-document-hidden="true"] [data-story-step],
+    html[data-document-hidden="true"] .overview-map-live,
+    html[data-document-hidden="true"] .guided-view-stop,
+    html[data-document-hidden="true"] .share-chapter-cue,
+    html[data-document-hidden="true"] .share-chapter-state::before,
+    html[data-document-hidden="true"] .share-chapter-progress span {
+      animation: none !important;
+    }
+    html[data-motion="still"] .guided-view-progress span {
+      transform: scaleX(1) !important;
+    }
+    html[data-motion="still"] svg[data-story-playing="true"] .story-trail-flow {
+      stroke-dasharray: none;
+      stroke-dashoffset: 0;
+      opacity: 0.55;
+    }
+    html[data-motion="still"] .intent-trace-flow,
+    html[data-motion="still"] .route-probe-flow {
+      stroke-dasharray: none;
+      stroke-dashoffset: 0;
+      opacity: 0.72;
+    }
+    html[data-motion="still"] .route-journey-overlay,
+    html[data-document-hidden="true"] .route-journey-overlay { display: none !important; }
+    html[data-motion="still"] .relationship-pulse-overlay,
+    html[data-motion="still"] .story-carrier-overlay,
+    html[data-document-hidden="true"] .story-carrier-overlay { display: none !important; }
+    html[data-motion="still"] .chapter-handoff-overlay { display: none !important; }
+    html[data-motion="still"] .chapter-handoff-anchor { animation: none !important; }
+    html[data-motion="still"] .guided-view-chapter,
+    html[data-motion="still"] svg [data-node-id],
+    html[data-motion="still"] svg [data-edge-from],
+    html[data-motion="still"] svg [data-detail],
+    html[data-motion="still"] svg [data-detail-anchor],
+    html[data-motion="still"] svg [data-legend-hit],
+    html[data-motion="still"] svg {
+      transition: none !important;
+    }
+
+    svg {
+      width: 100%;
+      min-width: min(900px, 100%);
+      display: block;
+      transform-origin: 0 0;
+      transition: transform 0.18s ease;
+    }
+
+    .diagram-container.is-camera-moving svg {
+      transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
+    }
+    .diagram-container.is-camera-transaction svg { transition: none; }
+    .diagram-container.is-pannable { cursor: grab; }
+    .diagram-container.is-panning { cursor: grabbing; user-select: none; }
+    .diagram-container.is-panning svg { transition: none; }
+
+    .diagram-nav {
+      position: absolute;
+      right: 1rem;
+      bottom: 1rem;
+      z-index: 12;
+      display: inline-flex;
+      align-items: center;
+      max-width: calc(100% - 2rem);
+      padding: 0.15rem;
+      gap: 0;
+      overflow-x: auto;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 48%, transparent);
+      border-radius: 0.58rem;
+      background: color-mix(in srgb, var(--toolbar-bg) 82%, transparent);
+      box-shadow: 0 5px 14px rgba(0, 0, 0, 0.07);
+      backdrop-filter: blur(10px);
+      scrollbar-width: none;
+    }
+    .diagram-nav::-webkit-scrollbar { display: none; }
+    .diagram-nav button,
+    .focus-chip button,
+    .guided-views button {
+      border: 0;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      cursor: pointer;
+    }
+    .diagram-nav button {
+      min-width: 2rem;
+      height: 2rem;
+      padding: 0 0.35rem;
+      border-radius: 0.35rem;
+      color: color-mix(in srgb, var(--toolbar-text) 68%, transparent);
+      font-size: 0.56rem;
+      font-weight: 600;
+      letter-spacing: 0.02em;
+      transition: background 0.15s, color 0.15s;
+    }
+    .diagram-nav button:hover,
+    .diagram-nav button:focus-visible,
+    .focus-chip button:hover,
+    .focus-chip button:focus-visible,
+    .guided-views button:hover,
+    .guided-views button:focus-visible { background: var(--toolbar-hover); }
+    .diagram-nav button:focus-visible,
+    .focus-chip button:focus-visible,
+    .guided-views button:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 1px;
+    }
+    .diagram-nav button:disabled { opacity: 0.38; cursor: default; }
+    .diagram-nav button:disabled:hover { background: transparent; }
+    .diagram-nav #btn-route-probe,
+    .diagram-nav #btn-overview-map,
+    .diagram-nav #btn-semantic-lens {
+      min-width: auto;
+      padding-inline: 0.5rem;
+      color: color-mix(in srgb, var(--toolbar-text) 86%, transparent);
+      font-weight: 650;
+    }
+    .diagram-nav #btn-node-finder,
+    .diagram-nav [data-view="out"] {
+      position: relative;
+      margin-left: 0.25rem;
+    }
+    .diagram-nav #btn-node-finder::before,
+    .diagram-nav [data-view="out"]::before {
+      position: absolute;
+      top: 0.4rem;
+      bottom: 0.4rem;
+      left: -0.13rem;
+      width: 1px;
+      background: color-mix(in srgb, var(--toolbar-border) 62%, transparent);
+      content: "";
+      pointer-events: none;
+    }
+    .diagram-nav-icon {
+      display: block;
+      width: 0.72rem;
+      height: 0.72rem;
+      margin: auto;
+      background: currentColor;
+      -webkit-mask-position: center;
+      -webkit-mask-repeat: no-repeat;
+      -webkit-mask-size: contain;
+      mask-position: center;
+      mask-repeat: no-repeat;
+      mask-size: contain;
+    }
+    .diagram-nav-icon.find {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='8.5' cy='8.5' r='4.5' fill='none' stroke='black' stroke-width='1.8'/%3E%3Cpath d='m12 12 4 4' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='8.5' cy='8.5' r='4.5' fill='none' stroke='black' stroke-width='1.8'/%3E%3Cpath d='m12 12 4 4' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    .diagram-nav-icon.guide {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='10' cy='10' r='7' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M7.8 7.3a2.4 2.4 0 014.6.9c0 1.8-2.4 2-2.4 3.7M10 14.9h.01' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='10' cy='10' r='7' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M7.8 7.3a2.4 2.4 0 014.6.9c0 1.8-2.4 2-2.4 3.7M10 14.9h.01' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    .diagram-nav-icon.minus {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10h10' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10h10' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    .diagram-nav-icon.plus {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 5v10M5 10h10' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 5v10M5 10h10' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    .diagram-nav [data-view="reset"] {
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+      gap: 0.2rem;
+      min-width: 3.1rem;
+      padding-inline: 0.35rem;
+    }
+    .diagram-nav [data-view="reset"][data-detail-visible] {
+      min-width: 3.8rem;
+    }
+    .diagram-nav-detail {
+      color: color-mix(in srgb, var(--toolbar-text) 52%, transparent);
+      font-size: 0.44rem;
+      font-weight: 700;
+      line-height: 1;
+      letter-spacing: 0.07em;
+    }
+    .diagram-nav-percent {
+      color: color-mix(in srgb, var(--toolbar-text) 84%, transparent);
+      font-size: 0.55rem;
+      font-weight: 650;
+      line-height: 1;
+    }
+    .diagram-container[data-camera-indicator="true"] .diagram-nav-detail,
+    .diagram-container[data-camera-indicator="true"] .diagram-nav-percent { color: var(--frontend-stroke); }
+    .diagram-nav #btn-diagram-guide[aria-expanded="true"] {
+      color: var(--cloud-stroke);
+      background: var(--toolbar-hover);
+    }
+
+    /* Semantic Radar is a deliberately simplified, viewer-only overview. It
+       uses authored node bounds and the live camera viewport rather than
+       cloning the canonical SVG, so IDs, filters, animation, and export state
+       stay singular and deterministic. */
+    .overview-map {
+      position: absolute;
+      right: 1rem;
+      bottom: calc(4.15rem + var(--archify-nav-reserve));
+      z-index: 12;
+      width: 11.25rem;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 52%, var(--toolbar-border));
+      border-radius: 0.78rem;
+      background: var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 16px 42px rgba(0, 0, 0, 0.3);
+      backdrop-filter: blur(16px);
+      font-size: 0.625rem;
+    }
+    .overview-map[hidden] { display: none; }
+    .overview-map[data-docked="true"] {
+      position: fixed;
+      right: var(--archify-radar-right, 1rem);
+      top: var(--archify-radar-top, 1rem);
+      bottom: auto;
+    }
+    .overview-map[data-docked="true"][data-dock-side="left"] {
+      right: auto;
+      left: var(--archify-radar-left, 1rem);
+    }
+    html[data-preset="blueprint"] .overview-map { border-radius: 0.28rem; }
+    .overview-map-head {
+      display: grid;
+      grid-template-columns: auto minmax(0, 1fr) auto;
+      align-items: center;
+      gap: 0.45rem;
+      min-height: 2.25rem;
+      padding: 0.42rem 0.48rem 0.38rem 0.55rem;
+      border-bottom: 1px solid var(--toolbar-border);
+      background: linear-gradient(110deg, color-mix(in srgb, var(--frontend-fill) 45%, transparent), transparent 68%);
+      cursor: grab;
+      touch-action: none;
+      user-select: none;
+    }
+    .overview-map[data-panel-dragging="true"] .overview-map-head { cursor: grabbing; }
+    .overview-map[data-placement-invalid="true"] {
+      border-color: var(--security-stroke);
+      box-shadow: 0 0 0 2px color-mix(in srgb, var(--security-stroke) 34%, transparent), 0 16px 42px rgba(0, 0, 0, 0.3);
+    }
+    .overview-map[data-compact="true"] {
+      width: 7.4rem;
+    }
+    .overview-map[data-compact="true"] .overview-map-head {
+      grid-template-columns: minmax(0, 1fr) auto;
+      gap: 0.24rem;
+      min-height: 1.5rem;
+      padding: 0.05rem 0.16rem 0.05rem 0.32rem;
+      border-bottom: 0;
+    }
+    .overview-map[data-compact="true"] .overview-map-live,
+    .overview-map[data-compact="true"] .overview-map-copy,
+    .overview-map[data-compact="true"] .overview-map-surface,
+    .overview-map[data-compact="true"] .overview-map-hint {
+      display: none;
+    }
+    .overview-map[data-compact="true"] .overview-map-expand { display: inline-flex; }
+    .overview-map[data-compact="true"] .overview-map-close {
+      width: 1.15rem;
+      height: 1.15rem;
+      font-size: 0.72rem;
+    }
+    .overview-map-live {
+      width: 0.42rem;
+      height: 0.42rem;
+      border-radius: 50%;
+      background: var(--backend-stroke);
+      box-shadow: 0 0 0 0 color-mix(in srgb, var(--backend-stroke) 52%, transparent);
+      animation: archify-radar-live 2.4s ease-out infinite;
+    }
+    .overview-map-copy { min-width: 0; line-height: 1.1; }
+    .overview-map-copy strong {
+      display: block;
+      overflow: hidden;
+      color: var(--frontend-stroke);
+      font-size: 0.59rem;
+      letter-spacing: 0.12em;
+      text-transform: uppercase;
+      white-space: nowrap;
+      text-overflow: ellipsis;
+    }
+    .overview-map-copy small {
+      display: block;
+      margin-top: 0.18rem;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.52rem;
+      letter-spacing: 0.04em;
+      white-space: nowrap;
+      text-overflow: ellipsis;
+    }
+    .overview-map-expand {
+      display: none;
+      align-items: center;
+      justify-content: center;
+      min-width: 0;
+      height: 1.2rem;
+      padding: 0 0.34rem;
+      overflow: hidden;
+      border: 0;
+      border-radius: 0.3rem;
+      background: transparent;
+      color: var(--frontend-stroke);
+      font: inherit;
+      font-size: 0.49rem;
+      font-weight: 700;
+      letter-spacing: 0.06em;
+      text-transform: uppercase;
+      white-space: nowrap;
+      cursor: pointer;
+    }
+    .overview-map-close {
+      width: 1.55rem;
+      height: 1.55rem;
+      padding: 0;
+      border: 0;
+      border-radius: 0.34rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      font-size: 0.9rem;
+      cursor: pointer;
+    }
+    .overview-map-expand:hover,
+    .overview-map-expand:focus-visible,
+    .overview-map-close:hover,
+    .overview-map-close:focus-visible { background: var(--toolbar-hover); }
+    .overview-map-expand:focus-visible,
+    .overview-map-close:focus-visible,
+    .overview-map-surface:focus-visible,
+    .overview-map-node:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 1px;
+    }
+    .overview-map-surface {
+      position: relative;
+      height: 7rem;
+      margin: 0.42rem;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--panel-border) 72%, transparent);
+      border-radius: 0.42rem;
+      background:
+        linear-gradient(color-mix(in srgb, var(--panel-border) 26%, transparent) 1px, transparent 1px),
+        linear-gradient(90deg, color-mix(in srgb, var(--panel-border) 26%, transparent) 1px, transparent 1px),
+        color-mix(in srgb, var(--bg) 86%, transparent);
+      background-size: 12px 12px;
+      cursor: crosshair;
+      touch-action: none;
+    }
+    html[data-preset="blueprint"] .overview-map-surface { border-radius: 0.1rem; }
+    .overview-map-surface > svg {
+      width: 100%;
+      height: 100%;
+      min-width: 0;
+      transform: none !important;
+      transition: none !important;
+      display: block;
+      overflow: visible;
+    }
+    .overview-map-node {
+      fill: var(--backend-stroke);
+      fill-opacity: 0.52;
+      stroke: var(--backend-stroke);
+      stroke-opacity: 0.86;
+      vector-effect: non-scaling-stroke;
+      cursor: pointer;
+      transition: fill-opacity 140ms ease, stroke-width 140ms ease, filter 140ms ease;
+    }
+    .overview-map-node[data-kind="frontend"],
+    .overview-map-node[data-kind="start"] { fill: var(--frontend-stroke); stroke: var(--frontend-stroke); }
+    .overview-map-node[data-kind="database"],
+    .overview-map-node[data-kind="success"] { fill: var(--database-stroke); stroke: var(--database-stroke); }
+    .overview-map-node[data-kind="cloud"],
+    .overview-map-node[data-kind="waiting"] { fill: var(--cloud-stroke); stroke: var(--cloud-stroke); }
+    .overview-map-node[data-kind="messagebus"] { fill: var(--messagebus-stroke); stroke: var(--messagebus-stroke); }
+    .overview-map-node[data-kind="security"],
+    .overview-map-node[data-kind="decision"],
+    .overview-map-node[data-kind="failure"] { fill: var(--security-stroke); stroke: var(--security-stroke); }
+    .overview-map-node[data-kind="external"],
+    .overview-map-node[data-kind="neutral"] { fill: var(--external-stroke); stroke: var(--external-stroke); }
+    .overview-map-node[data-radar-active="true"],
+    .overview-map-node:hover,
+    .overview-map-node:focus-visible {
+      fill-opacity: 0.92;
+      stroke-width: 2.2;
+      filter: drop-shadow(0 0 3px currentColor);
+    }
+    .overview-map-viewport {
+      fill: color-mix(in srgb, var(--frontend-fill) 56%, transparent);
+      stroke: var(--frontend-stroke);
+      stroke-width: 2;
+      vector-effect: non-scaling-stroke;
+      pointer-events: none;
+      filter: drop-shadow(0 0 3px color-mix(in srgb, var(--frontend-stroke) 54%, transparent));
+    }
+    .overview-map-hint {
+      display: flex;
+      justify-content: space-between;
+      gap: 0.5rem;
+      padding: 0 0.52rem 0.46rem;
+      color: var(--text-faint);
+      font-size: 0.49rem;
+      letter-spacing: 0.06em;
+      text-transform: uppercase;
+    }
+    .diagram-nav #btn-overview-map[aria-expanded="true"] {
+      color: var(--frontend-stroke);
+      background: var(--toolbar-hover);
+    }
+    .overview-map-feedback {
+      position: absolute;
+      right: 1rem;
+      bottom: 4.15rem;
+      z-index: 13;
+      max-width: min(16rem, calc(100% - 2rem));
+      padding: 0.38rem 0.55rem;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 52%, var(--toolbar-border));
+      border-radius: 0.5rem;
+      background: var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
+      font-size: 0.52rem;
+      line-height: 1.35;
+      pointer-events: none;
+    }
+    .overview-map-feedback[hidden] { display: none; }
+    .focus-chip[data-radar-yielded="true"] { display: none !important; }
+    .diagram-nav #btn-route-probe[aria-pressed="true"] {
+      color: var(--backend-stroke);
+      background: var(--toolbar-hover);
+    }
+    .diagram-nav #btn-semantic-lens[aria-expanded="true"],
+    .diagram-nav #btn-semantic-lens[aria-pressed="true"] {
+      color: var(--database-stroke);
+      background: var(--toolbar-hover);
+    }
+
+    /* Semantic Lens turns the compiled node-kind palette into an analytical
+       legend. One kind reveals its real traffic; two kinds compare only their
+       direct authored relationships. Geometry and the canonical SVG stay put. */
+    .semantic-lens {
+      position: absolute;
+      right: 1rem;
+      bottom: calc(4.15rem + var(--archify-nav-reserve));
+      z-index: 24;
+      width: min(20rem, calc(100% - 2rem));
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--database-stroke) 58%, var(--toolbar-border));
+      border-radius: 0.82rem;
+      background:
+        linear-gradient(135deg, color-mix(in srgb, var(--database-fill) 34%, transparent), transparent 48%),
+        var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 18px 52px rgba(0, 0, 0, 0.36);
+      backdrop-filter: blur(18px);
+      animation: archify-lens-in 180ms cubic-bezier(0.22, 1, 0.36, 1);
+    }
+    .semantic-lens[hidden] { display: none; }
+    .semantic-lens[data-dock-side="left"] { left: 1rem; right: auto; }
+    .semantic-lens[data-dock-side="right"] { left: auto; right: 1rem; }
+    html[data-preset="blueprint"] .semantic-lens { border-radius: 0.28rem; }
+    .semantic-lens-head {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      align-items: start;
+      gap: 0.75rem;
+      padding: 0.72rem 0.78rem 0.62rem;
+      border-bottom: 1px solid var(--toolbar-border);
+    }
+    .semantic-lens-eyebrow {
+      display: block;
+      color: var(--database-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.16em;
+      text-transform: uppercase;
+    }
+    .semantic-lens-title {
+      display: block;
+      margin-top: 0.16rem;
+      color: var(--text);
+      font-size: 0.82rem;
+      letter-spacing: -0.02em;
+    }
+    .semantic-lens-close {
+      width: 1.75rem;
+      height: 1.75rem;
+      padding: 0;
+      border: 0;
+      border-radius: 0.35rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      font-size: 1rem;
+      cursor: pointer;
+    }
+    .semantic-lens-close:hover,
+    .semantic-lens-close:focus-visible { background: var(--toolbar-hover); }
+    .semantic-lens-instruction {
+      margin: 0;
+      padding: 0.52rem 0.78rem 0.48rem;
+      color: var(--text-faint);
+      font-size: 0.55rem;
+      line-height: 1.45;
+    }
+    .semantic-lens-kinds {
+      display: grid;
+      grid-template-columns: 1fr 1fr;
+      gap: 0.3rem;
+      max-height: min(15rem, 40vh);
+      padding: 0 0.5rem 0.5rem;
+      overflow-y: auto;
+      scrollbar-width: thin;
+    }
+    .semantic-lens-kind {
+      --lens-color: var(--external-stroke);
+      display: grid;
+      grid-template-columns: auto minmax(0, 1fr) auto;
+      align-items: center;
+      gap: 0.42rem;
+      min-width: 0;
+      min-height: 2.15rem;
+      padding: 0.35rem 0.42rem;
+      border: 1px solid color-mix(in srgb, var(--lens-color) 24%, var(--toolbar-border));
+      border-radius: 0.45rem;
+      background: color-mix(in srgb, var(--panel) 76%, transparent);
+      color: var(--toolbar-text);
+      font: inherit;
+      text-align: left;
+      cursor: pointer;
+      transition: border-color 140ms ease, background 140ms ease, opacity 140ms ease;
+    }
+    html[data-preset="blueprint"] .semantic-lens-kind { border-radius: 0.12rem; }
+    .semantic-lens-kind[data-kind="frontend"],
+    .semantic-lens-kind[data-kind="start"] { --lens-color: var(--frontend-stroke); }
+    .semantic-lens-kind[data-kind="backend"],
+    .semantic-lens-kind[data-kind="active"] { --lens-color: var(--backend-stroke); }
+    .semantic-lens-kind[data-kind="database"],
+    .semantic-lens-kind[data-kind="success"] { --lens-color: var(--database-stroke); }
+    .semantic-lens-kind[data-kind="cloud"],
+    .semantic-lens-kind[data-kind="waiting"] { --lens-color: var(--cloud-stroke); }
+    .semantic-lens-kind[data-kind="messagebus"] { --lens-color: var(--messagebus-stroke); }
+    .semantic-lens-kind[data-kind="security"],
+    .semantic-lens-kind[data-kind="decision"],
+    .semantic-lens-kind[data-kind="failure"] { --lens-color: var(--security-stroke); }
+    .semantic-lens-kind:hover,
+    .semantic-lens-kind:focus-visible,
+    .semantic-lens-kind[aria-pressed="true"] {
+      border-color: color-mix(in srgb, var(--lens-color) 78%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--lens-color) 11%, var(--panel));
+    }
+    .semantic-lens-kind:focus-visible,
+    .semantic-lens-close:focus-visible,
+    .semantic-lens-actions button:focus-visible {
+      outline: 2px solid var(--database-stroke);
+      outline-offset: 1px;
+    }
+    .semantic-lens-kind:disabled { opacity: 0.34; cursor: default; }
+    .semantic-lens-swatch {
+      width: 0.48rem;
+      height: 0.48rem;
+      border-radius: 50%;
+      background: var(--lens-color);
+      box-shadow: 0 0 8px color-mix(in srgb, var(--lens-color) 58%, transparent);
+    }
+    .semantic-lens-kind strong {
+      overflow: hidden;
+      color: var(--text);
+      font-size: 0.61rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-lens-kind em {
+      color: var(--lens-color);
+      font-size: 0.54rem;
+      font-style: normal;
+      font-weight: 800;
+    }
+    .semantic-lens-status {
+      min-height: 2.5rem;
+      margin: 0;
+      padding: 0.55rem 0.78rem;
+      border-top: 1px solid var(--toolbar-border);
+      color: var(--text-faint);
+      font-size: 0.55rem;
+      line-height: 1.45;
+    }
+    .semantic-lens-status strong { color: var(--database-stroke); font-weight: 800; }
+    .semantic-lens-actions {
+      display: flex;
+      justify-content: flex-end;
+      gap: 0.28rem;
+      padding: 0 0.62rem 0.62rem;
+    }
+    .semantic-lens-actions button {
+      min-height: 1.8rem;
+      padding: 0.28rem 0.48rem;
+      border: 0;
+      border-radius: 0.35rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      font-size: 0.56rem;
+      cursor: pointer;
+    }
+    .semantic-lens-actions button:hover { background: var(--toolbar-hover); }
+    .semantic-lens-actions #semantic-lens-copy { color: var(--database-stroke); }
+    @keyframes archify-lens-in {
+      from { opacity: 0; transform: translateY(5px) scale(0.985); }
+      to { opacity: 1; transform: translateY(0) scale(1); }
+    }
+
+    /* Route Probe answers a reader question over the compiled semantic graph:
+       choose two stable nodes and reveal the shortest authored directed route.
+       The receipt and signal live entirely in the viewer layer. */
+    .route-probe {
+      position: absolute;
+      left: 1rem;
+      bottom: calc(1rem + var(--archify-nav-reserve));
+      z-index: 12;
+      width: min(46rem, calc(100% - 25rem));
+      min-width: 18rem;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--backend-stroke) 62%, var(--toolbar-border));
+      border-radius: 0.82rem;
+      background:
+        linear-gradient(115deg, color-mix(in srgb, var(--backend-fill) 50%, transparent), transparent 62%),
+        var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
+      backdrop-filter: blur(16px);
+      font-size: 0.625rem;
+    }
+    .route-probe[hidden] { display: none; }
+    .route-probe[data-route-dock="top"] {
+      top: 1rem;
+      bottom: auto;
+    }
+    html[data-preset="blueprint"] .route-probe { border-radius: 0.25rem; }
+    .route-probe-head {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      align-items: start;
+      gap: 0.65rem;
+      padding: 0.52rem 0.58rem 0.44rem;
+      border-bottom: 1px solid color-mix(in srgb, var(--toolbar-border) 80%, transparent);
+    }
+    .route-probe-copy { min-width: 0; }
+    .route-probe-eyebrow {
+      display: block;
+      color: var(--backend-stroke);
+      font-size: 0.48rem;
+      font-weight: 800;
+      letter-spacing: 0.15em;
+      text-transform: uppercase;
+    }
+    .route-probe-title {
+      display: block;
+      margin-top: 0.14rem;
+      overflow: hidden;
+      color: var(--toolbar-text);
+      font-size: 0.72rem;
+      line-height: 1.25;
+      white-space: nowrap;
+      text-overflow: ellipsis;
+    }
+    .route-probe-actions { display: flex; gap: 0.2rem; }
+    .route-probe button {
+      min-height: 1.55rem;
+      padding: 0.25rem 0.42rem;
+      border: 0;
+      border-radius: 0.36rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      cursor: pointer;
+    }
+    .route-probe button:hover,
+    .route-probe button:focus-visible { background: var(--toolbar-hover); }
+    .route-probe button:focus-visible {
+      outline: 2px solid var(--backend-stroke);
+      outline-offset: 1px;
+    }
+    .route-probe-copy-link { color: var(--frontend-stroke) !important; }
+    .route-probe-find { color: var(--backend-stroke) !important; }
+    .route-probe-copy-link[hidden] { display: none; }
+    .route-probe-find[hidden] { display: none; }
+    .route-probe-path {
+      display: flex;
+      align-items: center;
+      min-height: 2.2rem;
+      padding: 0.42rem 0.58rem 0.24rem;
+      overflow-x: auto;
+      scrollbar-width: thin;
+      white-space: nowrap;
+    }
+    .route-probe-node,
+    .route-probe button.route-probe-node {
+      flex: none;
+      max-width: 9.5rem;
+      overflow: hidden;
+      min-height: 1.75rem !important;
+      padding: 0.22rem 0.38rem;
+      border: 1px solid color-mix(in srgb, var(--backend-stroke) 46%, var(--toolbar-border));
+      border-radius: 999px;
+      background: color-mix(in srgb, var(--backend-fill) 52%, transparent);
+      color: var(--text);
+      font-size: 0.56rem;
+      font-weight: 700;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .route-probe-node[data-endpoint="start"] {
+      border-color: var(--frontend-stroke);
+      color: var(--frontend-stroke);
+    }
+    .route-probe-node[data-endpoint="end"] {
+      border-color: var(--security-stroke);
+      color: var(--security-stroke);
+    }
+    .route-probe-node[data-route-journey-state="past"] { opacity: 0.66; }
+    .route-probe-node[data-route-journey-state="future"] { opacity: 0.48; }
+    .route-probe-node[aria-current="step"] {
+      border-color: var(--backend-stroke);
+      background: color-mix(in srgb, var(--backend-fill) 82%, var(--toolbar-menu-bg));
+      color: var(--text);
+      box-shadow: 0 0 0 1px color-mix(in srgb, var(--backend-stroke) 42%, transparent), 0 0 14px color-mix(in srgb, var(--backend-stroke) 34%, transparent);
+      opacity: 1;
+    }
+    html[data-preset="blueprint"] .route-probe-node[aria-current="step"] {
+      border-style: double;
+      border-width: 3px;
+      border-radius: 0.2rem;
+      box-shadow: none;
+    }
+    .route-probe-arrow {
+      flex: none;
+      padding: 0 0.28rem;
+      color: var(--text-faint);
+      font-size: 0.65rem;
+    }
+    .route-probe-placeholder {
+      color: var(--text-faint);
+      font-size: 0.56rem;
+      letter-spacing: 0.03em;
+    }
+    .route-probe-status {
+      display: block;
+      min-height: 1.45rem;
+      padding: 0.08rem 0.58rem 0.44rem;
+      color: var(--text-faint);
+      font-size: 0.52rem;
+      line-height: 1.35;
+    }
+    .route-journey-controls {
+      display: grid;
+      grid-template-columns: 2rem minmax(5.8rem, auto) 2rem minmax(4.8rem, auto);
+      justify-content: start;
+      gap: 0.22rem;
+      padding: 0.08rem 0.58rem 0.28rem;
+    }
+    .route-journey-controls[hidden] { display: none; }
+    .route-journey-controls button {
+      min-height: 1.8rem;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 86%, transparent);
+      background: color-mix(in srgb, var(--toolbar-bg) 72%, transparent);
+      font-size: 0.54rem;
+      font-weight: 700;
+    }
+    .route-journey-controls button:disabled {
+      cursor: default;
+      opacity: 0.34;
+    }
+    .route-journey-play { color: var(--backend-stroke) !important; }
+    .route-journey-overview { color: var(--frontend-stroke) !important; }
+    .route-journey-controls[data-playing="true"] .route-journey-play {
+      border-color: color-mix(in srgb, var(--backend-stroke) 64%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--backend-fill) 62%, transparent);
+    }
+    .route-probe[data-state="error"] {
+      border-color: color-mix(in srgb, var(--security-stroke) 72%, var(--toolbar-border));
+    }
+    .route-probe[data-state="error"] .route-probe-status { color: var(--security-stroke); }
+
+    .focus-chip {
+      position: absolute;
+      left: 1rem;
+      top: 1rem;
+      z-index: 12;
+      display: block;
+      width: min(22rem, calc(100% - 13rem));
+      max-width: calc(100% - 13rem);
+      overflow: hidden;
+      border: 1px solid var(--frontend-stroke);
+      border-radius: 0.85rem;
+      background: var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
+      backdrop-filter: blur(16px);
+      font-size: 0.6875rem;
+    }
+    .focus-chip[hidden] { display: none; }
+    html[data-preset="blueprint"] .focus-chip { border-radius: 0.3rem; }
+    .focus-chip button {
+      flex: none;
+      padding: 0.3rem 0.45rem;
+      border-radius: 0.35rem;
+      font-size: 0.625rem;
+    }
+    .relationship-lens-head {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      align-items: start;
+      gap: 0.75rem;
+      padding: 0.7rem 0.75rem 0.65rem;
+      border-bottom: 1px solid var(--toolbar-border);
+      background: linear-gradient(120deg, color-mix(in srgb, var(--frontend-fill) 34%, transparent), transparent 72%);
+    }
+    .relationship-lens-copy { min-width: 0; }
+    .relationship-lens-actions {
+      display: flex;
+      flex-direction: column;
+      align-items: flex-end;
+      gap: 0.18rem;
+    }
+    .relationship-lens-actions button { white-space: nowrap; }
+    .relationship-lens-actions #btn-focus-clear {
+      display: grid;
+      width: 1.75rem;
+      height: 1.75rem;
+      padding: 0;
+      place-items: center;
+      color: var(--text-muted);
+      font-size: 1rem;
+      line-height: 1;
+    }
+    .relationship-lens-actions #btn-focus-clear:hover,
+    .relationship-lens-actions #btn-focus-clear:focus-visible {
+      background: var(--toolbar-hover);
+      color: var(--text);
+    }
+    .relationship-lens-actions #btn-focus-copy { color: var(--frontend-stroke); }
+    .relationship-lens-actions #btn-focus-relations { display: none; }
+    .relationship-lens-eyebrow {
+      display: block;
+      margin-bottom: 0.18rem;
+      color: var(--frontend-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.14em;
+      text-transform: uppercase;
+    }
+    .relationship-lens-title {
+      display: block;
+      overflow: hidden;
+      color: var(--text);
+      font-size: 0.8rem;
+      line-height: 1.35;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-passport-detail {
+      display: block;
+      margin-top: 0.12rem;
+      overflow: hidden;
+      color: var(--text-muted);
+      font-size: 0.625rem;
+      line-height: 1.4;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-passport-detail[hidden] { display: none; }
+    .semantic-passport-meta {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 0.24rem;
+      margin-top: 0.42rem;
+    }
+    .semantic-passport-meta span,
+    .semantic-passport-meta code {
+      max-width: 100%;
+      overflow: hidden;
+      padding: 0.14rem 0.34rem;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 82%, transparent);
+      border-radius: 999px;
+      background: color-mix(in srgb, var(--panel) 68%, transparent);
+      color: var(--text-faint);
+      font: inherit;
+      font-size: 0.5rem;
+      letter-spacing: 0.04em;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-passport-meta [data-passport="kind"] {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 50%, var(--toolbar-border));
+      color: var(--frontend-stroke);
+      font-weight: 800;
+      text-transform: uppercase;
+    }
+    .semantic-passport-meta [data-passport="tag"] { color: var(--cloud-stroke); }
+    .semantic-passport-meta [data-passport="brand"] {
+      border-color: color-mix(in srgb, var(--messagebus-stroke) 52%, var(--toolbar-border));
+      color: var(--messagebus-stroke);
+      font-weight: 700;
+    }
+    .semantic-passport-meta [hidden] { display: none; }
+    html[data-preset="blueprint"] .semantic-passport-meta span,
+    html[data-preset="blueprint"] .semantic-passport-meta code { border-radius: 0.1rem; }
+    .semantic-passport-evidence {
+      margin-top: 0.52rem;
+      padding: 0.5rem;
+      border: 1px solid color-mix(in srgb, var(--backend-stroke) 32%, var(--toolbar-border));
+      border-radius: 0.55rem;
+      background: color-mix(in srgb, var(--backend-fill) 18%, var(--panel));
+    }
+    .semantic-passport-evidence[hidden] { display: none; }
+    html[data-preset="blueprint"] .semantic-passport-evidence { border-radius: 0.18rem; }
+    .semantic-passport-evidence-head {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      gap: 0.55rem;
+      margin-bottom: 0.35rem;
+    }
+    .semantic-passport-evidence-status {
+      display: inline-flex;
+      align-items: center;
+      gap: 0.28rem;
+      color: var(--backend-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.08em;
+      text-transform: uppercase;
+    }
+    .semantic-passport-evidence-status::before {
+      content: '';
+      width: 0.38rem;
+      height: 0.38rem;
+      border-radius: 50%;
+      background: var(--backend-stroke);
+      box-shadow: 0 0 0 3px color-mix(in srgb, var(--backend-stroke) 14%, transparent);
+    }
+    .semantic-passport-repository {
+      min-width: 0;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      text-decoration: none;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-passport-repository:hover,
+    .semantic-passport-repository:focus-visible { color: var(--backend-stroke); }
+    .semantic-passport-evidence-links { display: grid; gap: 0.22rem; }
+    .semantic-passport-source {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      gap: 0.15rem 0.45rem;
+      align-items: center;
+      padding: 0.34rem 0.4rem;
+      border: 1px solid transparent;
+      border-radius: 0.38rem;
+      color: var(--text-muted);
+      text-decoration: none;
+    }
+    .semantic-passport-source:hover,
+    .semantic-passport-source:focus-visible {
+      border-color: color-mix(in srgb, var(--backend-stroke) 42%, transparent);
+      background: color-mix(in srgb, var(--backend-fill) 32%, transparent);
+      color: var(--text);
+    }
+    .semantic-passport-source strong {
+      overflow: hidden;
+      font-size: 0.5625rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-passport-source code {
+      color: var(--backend-stroke);
+      font: inherit;
+      font-size: 0.5rem;
+    }
+    .semantic-passport-source small {
+      grid-column: 1 / -1;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .relationship-lens-summary {
+      display: block;
+      margin-top: 0.12rem;
+      color: var(--text-faint);
+      font-size: 0.5625rem;
+    }
+    .semantic-passport-reach {
+      display: grid;
+      gap: 0.28rem;
+      margin-top: 0.52rem;
+      padding-top: 0.48rem;
+      border-top: 1px solid color-mix(in srgb, var(--toolbar-border) 76%, transparent);
+    }
+    .semantic-passport-reach[hidden] { display: none; }
+    .semantic-passport-reach-label {
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.1em;
+      text-transform: uppercase;
+    }
+    .semantic-passport-reach-actions {
+      display: grid;
+      grid-template-columns: repeat(2, minmax(0, 1fr));
+      gap: 0.25rem;
+    }
+    .semantic-passport-reach-actions button {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      gap: 0.5rem;
+      min-width: 0;
+      min-height: 2rem;
+      padding: 0.32rem 0.42rem;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 86%, transparent);
+      background: color-mix(in srgb, var(--panel) 70%, transparent);
+      color: var(--text-muted);
+      text-align: left;
+    }
+    .semantic-passport-reach-actions button:hover:not(:disabled),
+    .semantic-passport-reach-actions button:focus-visible {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 62%, var(--toolbar-border));
+      color: var(--text);
+    }
+    .semantic-passport-reach-actions button:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 1px;
+    }
+    .semantic-passport-reach-actions button:disabled {
+      cursor: default;
+      opacity: 0.5;
+    }
+    .semantic-passport-reach-actions button[aria-pressed="true"] {
+      border-color: color-mix(in srgb, var(--reach-color, var(--frontend-stroke)) 72%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--reach-fill, var(--frontend-fill)) 48%, transparent);
+      color: var(--text);
+    }
+    #btn-reach-upstream {
+      --reach-color: var(--database-stroke);
+      --reach-fill: var(--database-fill);
+    }
+    #btn-reach-downstream {
+      --reach-color: var(--backend-stroke);
+      --reach-fill: var(--backend-fill);
+    }
+    .semantic-passport-reach-actions strong {
+      color: var(--reach-color, var(--frontend-stroke));
+      font-size: 0.625rem;
+    }
+    .semantic-passport-reach-status {
+      color: var(--text-faint);
+      font-size: 0.525rem;
+      line-height: 1.4;
+    }
+    .semantic-passport-reach-status[hidden] { display: none; }
+    .relationship-lens-list {
+      max-height: min(18rem, 46vh);
+      overflow: auto;
+      padding: 0.4rem;
+      scrollbar-width: thin;
+      scrollbar-color: var(--frontend-stroke) transparent;
+    }
+    .relationship-lens-list::-webkit-scrollbar { width: 4px; }
+    .relationship-lens-list::-webkit-scrollbar-thumb {
+      border-radius: 999px;
+      background: color-mix(in srgb, var(--frontend-stroke) 68%, transparent);
+    }
+    .relationship-lens-group + .relationship-lens-group { margin-top: 0.35rem; }
+    .relationship-lens-group-title {
+      display: block;
+      padding: 0.24rem 0.38rem 0.16rem;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.12em;
+      text-transform: uppercase;
+    }
+    .relationship-lens-row {
+      display: grid;
+      grid-template-columns: 2.1rem minmax(0, 1fr);
+      gap: 0.06rem 0.45rem;
+      width: 100%;
+      padding: 0.45rem 0.5rem !important;
+      text-align: left;
+    }
+    .relationship-lens-row:hover,
+    .relationship-lens-row:focus-visible,
+    .relationship-lens-row[data-preview-active="true"] {
+      background: var(--toolbar-hover);
+      box-shadow: inset 2px 0 0 var(--frontend-stroke);
+    }
+    .relationship-lens-row:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: -2px;
+    }
+    .relationship-lens-direction {
+      grid-row: 1 / 3;
+      align-self: center;
+      color: var(--frontend-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.08em;
+    }
+    .relationship-lens-row[data-direction="in"] .relationship-lens-direction { color: var(--database-stroke); }
+    .relationship-lens-row[data-direction="loop"] .relationship-lens-direction { color: var(--security-stroke); }
+    .relationship-lens-row strong {
+      overflow: hidden;
+      color: var(--text);
+      font-size: 0.6875rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .relationship-lens-row small {
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.5625rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .relationship-lens-empty {
+      margin: 0;
+      padding: 0.75rem;
+      color: var(--text-faint);
+      font-size: 0.625rem;
+      text-align: center;
+    }
+
+    /* Diagram Guide keeps the artifact's growing reader vocabulary
+       discoverable without widening the permanent control bar. It derives
+       honest counts at runtime and delegates every action to an existing
+       production interaction instead of creating a second command system. */
+    .diagram-guide {
+      position: absolute;
+      top: 1rem;
+      right: 1rem;
+      z-index: 26;
+      width: min(32rem, calc(100% - 2rem));
+      max-height: min(42rem, calc(100% - 2rem));
+      overflow: auto;
+      border: 1px solid color-mix(in srgb, var(--cloud-stroke) 58%, var(--toolbar-border));
+      border-radius: 0.82rem;
+      background:
+        linear-gradient(135deg, color-mix(in srgb, var(--cloud-fill) 32%, transparent), transparent 42%),
+        var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 22px 64px rgba(0, 0, 0, 0.4);
+      backdrop-filter: blur(18px);
+      animation: archify-guide-in 180ms cubic-bezier(0.22, 1, 0.36, 1);
+    }
+    .diagram-guide[hidden] { display: none; }
+    html[data-preset="blueprint"] .diagram-guide { border-radius: 0.28rem; }
+    .diagram-guide-head {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      align-items: start;
+      gap: 1rem;
+      padding: 0.82rem 0.9rem 0.68rem;
+      border-bottom: 1px solid var(--toolbar-border);
+    }
+    .diagram-guide-eyebrow {
+      display: block;
+      color: var(--cloud-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.16em;
+      text-transform: uppercase;
+    }
+    .diagram-guide-title {
+      display: block;
+      margin-top: 0.16rem;
+      color: var(--text);
+      font-size: 0.86rem;
+      letter-spacing: -0.02em;
+    }
+    .diagram-guide-close {
+      width: 1.8rem;
+      height: 1.8rem;
+      border: 0;
+      border-radius: 0.35rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      font-size: 1rem;
+      cursor: pointer;
+    }
+    .diagram-guide-close:hover,
+    .diagram-guide-close:focus-visible { background: var(--toolbar-hover); }
+    .diagram-guide-stats {
+      display: flex;
+      align-items: center;
+      gap: 0.5rem;
+      margin: 0;
+      padding: 0.54rem 0.9rem;
+      border-bottom: 1px solid color-mix(in srgb, var(--toolbar-border) 74%, transparent);
+      color: var(--text-faint);
+      font-size: 0.56rem;
+      letter-spacing: 0.025em;
+    }
+    .diagram-guide-stats::before {
+      content: '';
+      width: 0.42rem;
+      height: 0.42rem;
+      flex: none;
+      border-radius: 50%;
+      background: var(--backend-stroke);
+      box-shadow: 0 0 10px color-mix(in srgb, var(--backend-stroke) 72%, transparent);
+    }
+    .diagram-guide-actions {
+      display: grid;
+      grid-template-columns: 1fr 1fr;
+      gap: 0.38rem;
+      padding: 0.62rem;
+    }
+    .diagram-guide-action {
+      --guide-accent: var(--frontend-stroke);
+      display: grid;
+      grid-template-columns: auto minmax(0, 1fr) auto;
+      align-items: center;
+      gap: 0.55rem;
+      min-height: 4.15rem;
+      padding: 0.55rem 0.58rem;
+      border: 1px solid color-mix(in srgb, var(--guide-accent) 22%, var(--toolbar-border));
+      border-radius: 0.55rem;
+      background: color-mix(in srgb, var(--panel) 78%, transparent);
+      color: var(--toolbar-text);
+      font: inherit;
+      text-align: left;
+      cursor: pointer;
+      transition: border-color 140ms ease, background 140ms ease, transform 140ms ease;
+    }
+    .diagram-guide-action[data-guide-action="route"] { --guide-accent: var(--backend-stroke); }
+    .diagram-guide-action[data-guide-action="map"] { --guide-accent: var(--database-stroke); }
+    .diagram-guide-action[data-guide-action="lens"] { --guide-accent: var(--messagebus-stroke); }
+    .diagram-guide-action[data-guide-action="story"] { --guide-accent: var(--security-stroke); }
+    .diagram-guide-action[data-guide-action="present"] {
+      --guide-accent: var(--cloud-stroke);
+    }
+    .diagram-guide-action:hover,
+    .diagram-guide-action:focus-visible {
+      border-color: color-mix(in srgb, var(--guide-accent) 76%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--guide-accent) 9%, var(--panel));
+      transform: translateY(-1px);
+    }
+    .diagram-guide-action:focus-visible,
+    .diagram-guide-close:focus-visible {
+      outline: 2px solid var(--cloud-stroke);
+      outline-offset: 1px;
+    }
+    .diagram-guide-action:disabled {
+      opacity: 0.42;
+      cursor: default;
+      transform: none;
+    }
+    .diagram-guide-index {
+      display: grid;
+      place-items: center;
+      width: 1.65rem;
+      height: 1.65rem;
+      border: 1px solid color-mix(in srgb, var(--guide-accent) 64%, var(--toolbar-border));
+      border-radius: 0.35rem;
+      color: var(--guide-accent);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.06em;
+    }
+    .diagram-guide-action-copy { min-width: 0; }
+    .diagram-guide-action strong {
+      display: block;
+      overflow: hidden;
+      color: var(--text);
+      font-size: 0.66rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .diagram-guide-action small {
+      display: -webkit-box;
+      margin-top: 0.18rem;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      line-height: 1.35;
+      -webkit-box-orient: vertical;
+      -webkit-line-clamp: 2;
+    }
+    .diagram-guide kbd {
+      align-self: start;
+      min-width: 1.45rem;
+      padding: 0.12rem 0.3rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.25rem;
+      color: var(--text-faint);
+      font: inherit;
+      font-size: 0.5rem;
+      text-align: center;
+    }
+    .diagram-guide-shortcuts {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 0.34rem 0.62rem;
+      padding: 0.58rem 0.9rem 0.68rem;
+      border-top: 1px solid var(--toolbar-border);
+      color: var(--text-faint);
+      font-size: 0.5rem;
+    }
+    .diagram-guide-shortcuts span {
+      display: inline-flex;
+      align-items: center;
+      gap: 0.28rem;
+      white-space: nowrap;
+    }
+    .diagram-guide-feedback {
+      min-height: 1rem;
+      margin: -0.18rem 0.9rem 0.62rem;
+      color: var(--security-stroke);
+      font-size: 0.5rem;
+    }
+    .diagram-guide-feedback:empty { display: none; }
+    @keyframes archify-guide-in {
+      from { opacity: 0; transform: translateY(-5px) scale(0.985); }
+      to { opacity: 1; transform: translateY(0) scale(1); }
+    }
+
+    .node-finder {
+      position: absolute;
+      top: 1rem;
+      left: 1rem;
+      z-index: 24;
+      display: flex;
+      flex-direction: column;
+      width: min(22rem, calc(100% - 2rem));
+      max-height: calc(100% - 2rem);
+      overflow: hidden;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.85rem;
+      background: var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 6px 8px rgba(0, 0, 0, 0.22);
+      backdrop-filter: blur(16px);
+    }
+    .node-finder[hidden] { display: none; }
+    .node-finder[data-context="route-source"] {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 68%, var(--toolbar-border));
+    }
+    .node-finder[data-context="route-target"] {
+      border-color: color-mix(in srgb, var(--security-stroke) 68%, var(--toolbar-border));
+    }
+    html[data-preset="blueprint"] .node-finder { border-radius: 0.3rem; }
+    .node-finder-head {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      gap: 1rem;
+      padding: 0.7rem 0.8rem 0.45rem;
+    }
+    .node-finder-head strong {
+      color: var(--text);
+      font-size: 0.6875rem;
+      letter-spacing: 0.08em;
+      text-transform: uppercase;
+    }
+    .node-finder[data-context="route-source"] .node-finder-head strong { color: var(--frontend-stroke); }
+    .node-finder[data-context="route-target"] .node-finder-head strong { color: var(--security-stroke); }
+    .node-finder-close {
+      width: 1.75rem;
+      height: 1.75rem;
+      border: 0;
+      border-radius: 0.35rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      font-size: 1rem;
+      cursor: pointer;
+    }
+    .node-finder-close:hover,
+    .node-finder-close:focus-visible { background: var(--toolbar-hover); }
+    .node-finder-close:focus-visible,
+    .node-finder-result:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: -2px;
+    }
+    .node-finder-search {
+      display: grid;
+      grid-template-columns: auto minmax(0, 1fr) auto;
+      align-items: center;
+      gap: 0.55rem;
+      margin: 0 0.55rem 0.55rem;
+      padding: 0 0.7rem;
+      min-height: 2.6rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.55rem;
+      background: color-mix(in srgb, var(--panel) 78%, transparent);
+      transition: border-color 160ms ease-out, box-shadow 160ms ease-out;
+    }
+    html[data-preset="blueprint"] .node-finder-search { border-radius: 0.18rem; }
+    .node-finder-search > span { color: var(--frontend-stroke); font-size: 0.875rem; }
+    .node-finder-search:focus-within {
+      border-color: var(--frontend-stroke);
+      box-shadow: 0 0 0 2px color-mix(in srgb, var(--frontend-stroke) 20%, transparent);
+    }
+    .node-finder-input {
+      appearance: none;
+      width: 100%;
+      min-width: 0;
+      border: 0;
+      outline: 0;
+      background: transparent;
+      color: var(--text);
+      font: inherit;
+      font-size: 0.75rem;
+    }
+    .node-finder-input:focus-visible { outline: none; }
+    .node-finder-input::placeholder { color: var(--text-faint); }
+    .node-finder kbd {
+      padding: 0.1rem 0.32rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.25rem;
+      color: var(--text-faint);
+      font: inherit;
+      font-size: 0.5625rem;
+    }
+    .node-finder-results {
+      display: grid;
+      flex: 1 1 auto;
+      gap: 0;
+      min-height: 0;
+      max-height: min(18rem, 48vh);
+      margin: 0 0.55rem 0.45rem;
+      padding: 0;
+      overflow-y: auto;
+      overscroll-behavior: contain;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 78%, transparent);
+      border-radius: 0.55rem;
+      background: color-mix(in srgb, var(--panel) 54%, transparent);
+      scroll-padding-block: 0.25rem;
+      scrollbar-width: thin;
+    }
+    html[data-preset="blueprint"] .node-finder-results { border-radius: 0.18rem; }
+    .node-finder-result {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      gap: 0.2rem 0.75rem;
+      width: 100%;
+      min-height: 3.25rem;
+      padding: 0.58rem 0.65rem;
+      border: 0;
+      border-radius: 0;
+      background: transparent;
+      color: var(--text);
+      font: inherit;
+      text-align: left;
+      cursor: pointer;
+      transition: background-color 160ms ease-out;
+    }
+    .node-finder-result:not(:last-child) {
+      border-bottom: 1px solid color-mix(in srgb, var(--toolbar-border) 62%, transparent);
+    }
+    .node-finder-result:hover,
+    .node-finder-result:focus-visible {
+      position: relative;
+      z-index: 1;
+      background: color-mix(in srgb, var(--frontend-fill) 48%, var(--toolbar-hover));
+    }
+    .node-finder-result strong {
+      overflow: hidden;
+      font-size: 0.75rem;
+      line-height: 1.25;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .node-finder-result small {
+      grid-column: 1 / -1;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.5625rem;
+      letter-spacing: 0.015em;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .node-finder-result em {
+      align-self: center;
+      color: var(--frontend-stroke);
+      font-size: 0.625rem;
+      font-style: normal;
+    }
+    .node-finder[data-context^="route-"] .node-finder-result em {
+      padding: 0.1rem 0.3rem;
+      border: 1px solid color-mix(in srgb, currentColor 52%, transparent);
+      border-radius: 999px;
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.05em;
+      text-transform: uppercase;
+    }
+    .node-finder[data-context="route-target"] .node-finder-result em { color: var(--security-stroke); }
+    .node-finder-empty {
+      padding: 1.1rem 0.75rem 1.25rem;
+      color: var(--text-faint);
+      font-size: 0.6875rem;
+      text-align: center;
+    }
+    .node-finder-status {
+      margin: 0;
+      padding: 0.1rem 0.8rem 0.65rem;
+      color: var(--text-faint);
+      font-size: 0.5625rem;
+    }
+
+    .guided-views {
+      display: grid;
+      grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem auto;
+      align-items: stretch;
+      gap: 0.35rem;
+      min-width: 0;
+      margin: 0 0 0.75rem;
+      padding: 0.35rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.85rem;
+      background: var(--toolbar-bg);
+      background: linear-gradient(120deg, var(--toolbar-bg), color-mix(in srgb, var(--toolbar-bg) 82%, var(--frontend-fill)));
+      box-shadow: 0 12px 36px rgba(0, 0, 0, 0.16);
+      backdrop-filter: blur(12px);
+    }
+    .guided-views[hidden] { display: none; }
+
+    html[data-preset="blueprint"] .guided-views {
+      border-color: var(--panel-border);
+      border-radius: 0.35rem;
+      background:
+        linear-gradient(90deg, color-mix(in srgb, var(--frontend-fill) 36%, transparent), transparent 24%),
+        var(--toolbar-bg);
+      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
+    }
+    html[data-preset="blueprint"] .guided-views button { border-radius: 0.2rem; }
+    html[data-preset="blueprint"] .guided-view-progress { border-radius: 0; }
+    html[data-preset="blueprint"] .guided-view-progress span { border-radius: 0; }
+    .guided-views button {
+      min-width: 0;
+      padding: 0.45rem 0.6rem;
+      border-radius: 0.55rem;
+      font-size: 0.75rem;
+    }
+    .guided-views > #guided-view-prev,
+    .guided-views > #guided-view-next { min-width: 2.75rem; min-height: 2.75rem; }
+    .guided-views button:disabled { opacity: 0.3; cursor: default; }
+    .guided-view-copy {
+      min-width: 0;
+      padding: 0.2rem 0.5rem;
+      border-left: 1px solid var(--toolbar-border);
+      overflow: hidden;
+    }
+    .guided-view-meta {
+      display: flex;
+      align-items: center;
+      gap: 0.5rem;
+      min-height: 1rem;
+      margin-bottom: 0.12rem;
+      color: var(--frontend-stroke);
+      font-size: 0.5625rem;
+      font-weight: 700;
+      letter-spacing: 0.12em;
+      text-transform: uppercase;
+    }
+    .guided-view-handoff {
+      box-sizing: border-box;
+      height: 1rem;
+      min-width: 0;
+      max-width: 15rem;
+      overflow: hidden;
+      padding: 0 0.38rem;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 46%, transparent);
+      border-radius: 999px;
+      color: var(--toolbar-text);
+      background: color-mix(in srgb, var(--frontend-fill) 44%, transparent);
+      font-size: 0.5rem;
+      line-height: calc(1rem - 2px);
+      letter-spacing: 0.06em;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .guided-view-handoff[hidden] { display: none; }
+    html[data-preset="blueprint"] .guided-view-handoff { border-radius: 0.15rem; }
+    .chapter-handoff-overlay { pointer-events: none; }
+    .chapter-handoff-anchor {
+      fill: color-mix(in srgb, var(--frontend-fill) 10%, transparent);
+      stroke: var(--frontend-stroke);
+      stroke-width: 2;
+      stroke-dasharray: 4 4;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.96;
+      animation: archify-chapter-anchor 0.42s cubic-bezier(0.22, 1, 0.36, 1) both;
+    }
+    svg[data-chapter-handoff] [data-node-id][data-chapter-role="stay"] { opacity: 1; }
+    svg[data-chapter-handoff] [data-node-id][data-chapter-role="enter"] { opacity: 0.78; }
+    svg[data-chapter-handoff] [data-node-id][data-chapter-role="leave"] { opacity: 0.26; }
+    @keyframes archify-chapter-anchor {
+      0% { opacity: 0.35; stroke-dashoffset: 8; }
+      45% { opacity: 1; }
+      100% { opacity: 0.72; stroke-dashoffset: 0; }
+    }
+    .guided-view-progress {
+      width: 3.5rem;
+      height: 2px;
+      overflow: hidden;
+      border-radius: 999px;
+      background: var(--toolbar-border);
+    }
+    .guided-view-progress span {
+      display: block;
+      width: 100%;
+      height: 100%;
+      border-radius: inherit;
+      background: var(--frontend-stroke);
+      transform: scaleX(0);
+      transform-origin: left center;
+    }
+    .guided-view-copy strong,
+    .guided-view-copy small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+    .guided-view-copy strong { color: var(--toolbar-text); font-size: 0.75rem; line-height: 1.35; }
+    .guided-view-copy small { margin-top: 0; color: var(--text-muted); font-size: 0.625rem; line-height: 1.35; }
+    .guided-story-caption {
+      display: grid;
+      grid-template-columns: auto minmax(0, 1fr) auto;
+      gap: 0.12rem 0.55rem;
+      align-items: center;
+      min-width: 0;
+      margin-top: 0.18rem;
+      padding: 0.3rem 0.5rem;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 32%, var(--toolbar-border));
+      border-radius: 0.58rem;
+      background: color-mix(in srgb, var(--frontend-fill) 26%, transparent);
+      animation: archify-story-caption-in 140ms cubic-bezier(0.22, 1, 0.36, 1) both;
+    }
+    .guided-story-caption[hidden] { display: none; }
+    .guided-story-caption-index {
+      grid-row: 1 / span 2;
+      align-self: stretch;
+      display: inline-grid;
+      min-width: 3.3rem;
+      place-items: center;
+      padding-right: 0.52rem;
+      border-right: 1px solid color-mix(in srgb, var(--frontend-stroke) 28%, var(--toolbar-border));
+      color: var(--frontend-stroke);
+      font-size: 0.5625rem;
+      font-weight: 800;
+      letter-spacing: 0.08em;
+      text-transform: uppercase;
+    }
+    .guided-story-caption strong,
+    .guided-story-caption small {
+      display: block;
+      min-width: 0;
+      overflow: hidden;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .guided-story-caption strong { color: var(--toolbar-text); font-size: 0.6875rem; line-height: 1.3; }
+    .guided-story-caption small { color: var(--text-muted); font-size: 0.5625rem; line-height: 1.35; }
+    .guided-story-caption-next {
+      grid-column: 3;
+      grid-row: 1 / span 2;
+      display: grid;
+      min-width: 6.4rem;
+      max-width: 9.5rem;
+      align-self: stretch;
+      align-content: center;
+      padding-left: 0.58rem;
+      border-left: 1px solid color-mix(in srgb, var(--frontend-stroke) 22%, var(--toolbar-border));
+    }
+    .guided-story-caption-next[hidden] { display: none; }
+    .guided-story-caption-next small {
+      color: color-mix(in srgb, var(--frontend-stroke) 72%, var(--text-muted));
+      font-weight: 800;
+      letter-spacing: 0.09em;
+      text-transform: uppercase;
+    }
+    .guided-story-caption-next strong { color: var(--text-muted); font-weight: 700; }
+    html[data-preset="blueprint"] .guided-story-caption { border-radius: 0.2rem; }
+    .guided-views[data-story-beat] .guided-view-copy > #guided-view-label,
+    .guided-views[data-story-beat] .guided-view-copy > #guided-view-note { display: none; }
+    @keyframes archify-story-caption-in {
+      from { opacity: 0; transform: translateY(3px); }
+      to { opacity: 1; transform: translateY(0); }
+    }
+    .guided-view-trail {
+      display: flex;
+      align-items: center;
+      gap: 0.28rem;
+      min-width: 0;
+      min-height: 1.7rem;
+      margin-top: 0;
+      padding: 0;
+      overflow-x: auto;
+      color: var(--text-faint);
+      overscroll-behavior-x: contain;
+      touch-action: pan-x;
+      scrollbar-width: none;
+      white-space: nowrap;
+    }
+    .guided-view-trail[hidden] { display: none; }
+    .guided-view-trail::-webkit-scrollbar { display: none; }
+    .guided-view-trail .guided-view-stop {
+      appearance: none;
+      box-sizing: border-box;
+      display: inline-flex;
+      flex: 0 0 auto;
+      align-items: center;
+      gap: 0.28rem;
+      min-height: 1.5rem;
+      padding: 0.1rem 0.3rem 0.1rem 0.18rem;
+      border: 1px solid transparent;
+      border-radius: 999px;
+      background: transparent;
+      color: var(--text-muted);
+      cursor: pointer;
+      font-family: inherit;
+      font-size: 0.5625rem;
+      font-weight: 650;
+      letter-spacing: 0.02em;
+      line-height: 1;
+      transition: background 140ms ease, border-color 140ms ease, color 140ms ease, opacity 140ms ease;
+    }
+    .guided-view-stop:hover {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 36%, transparent);
+      background: color-mix(in srgb, var(--frontend-fill) 34%, transparent);
+    }
+    .guided-view-stop:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 1px;
+    }
+    .guided-view-stop:disabled { cursor: wait; }
+    .guided-view-stop::before {
+      display: inline-grid;
+      width: 1rem;
+      height: 1rem;
+      place-items: center;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 54%, var(--toolbar-border));
+      border-radius: 50%;
+      background: color-mix(in srgb, var(--frontend-fill) 58%, var(--toolbar-bg));
+      color: var(--frontend-stroke);
+      content: attr(data-story-number);
+      font-size: 0.5rem;
+      line-height: 1;
+    }
+    .guided-view-stop + .guided-view-stop::after {
+      order: -1;
+      color: color-mix(in srgb, var(--frontend-stroke) 58%, var(--text-faint));
+      content: '\00b7';
+      font-size: 0.65rem;
+    }
+    .guided-view-stop[data-story-link="forward"]::after { content: '\2192'; }
+    .guided-view-stop[data-story-link="reverse"]::after { content: '\2190'; }
+    .guided-view-stop[data-story-link="multiple"]::after { content: '\21c4'; }
+    .guided-view-stop[data-story-beat-state="pending"] { opacity: 0.38; }
+    .guided-view-stop[data-story-beat-state="next"] {
+      border-style: dashed;
+      border-color: color-mix(in srgb, var(--frontend-stroke) 42%, var(--toolbar-border));
+      color: color-mix(in srgb, var(--toolbar-text) 68%, var(--text-muted));
+      opacity: 0.58;
+    }
+    .guided-view-stop[data-story-beat-state="past"] { color: var(--text-muted); opacity: 0.76; }
+    .guided-view-stop[data-story-beat-state="active"] {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 72%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--frontend-fill) 42%, transparent);
+      color: var(--toolbar-text);
+      font-weight: 800;
+      opacity: 1;
+    }
+    .guided-view-stop[data-story-beat-state="active"]::before {
+      border-color: var(--frontend-stroke);
+      box-shadow: 0 0 10px color-mix(in srgb, var(--frontend-stroke) 54%, transparent);
+    }
+    html[data-preset="blueprint"] .guided-view-stop,
+    html[data-preset="blueprint"] .guided-view-stop::before { border-radius: 0.1rem; }
+    html[data-preset="blueprint"] .guided-view-stop[data-story-beat-state="active"]::before { box-shadow: none; }
+    .guided-view-actions { display: flex; align-items: stretch; gap: 0.2rem; }
+    .guided-view-actions button { white-space: nowrap; }
+    .guided-view-play {
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+      gap: 0.38rem;
+      min-width: 6.25rem !important;
+      color: var(--frontend-stroke) !important;
+      font-size: 0.625rem !important;
+    }
+    .guided-view-play[aria-pressed="true"] { background: var(--toolbar-hover); }
+    .guided-view-all { min-width: 3.25rem !important; color: var(--text-muted) !important; font-size: 0.625rem !important; }
+    .guided-view-beat-link {
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+      gap: 0.3rem;
+      min-width: 5.4rem !important;
+      min-height: 1.5rem;
+      color: var(--text-muted) !important;
+      font-size: 0.5625rem !important;
+      letter-spacing: 0.025em;
+      transition: background 140ms ease, border-color 140ms ease, color 140ms ease;
+    }
+    .guided-view-beat-link:not(:disabled):hover {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 52%, var(--toolbar-border));
+      color: var(--frontend-stroke) !important;
+    }
+    .guided-view-beat-link[data-copy-state="copied"] {
+      border-color: color-mix(in srgb, var(--backend-stroke) 58%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--backend-fill) 46%, transparent);
+      color: var(--backend-stroke) !important;
+    }
+    .guided-view-index {
+      grid-column: 1 / -1;
+      min-width: 0;
+      padding: 0.28rem 0.12rem 0.08rem;
+      overflow: hidden;
+      border-top: 1px solid color-mix(in srgb, var(--toolbar-border) 72%, transparent);
+    }
+    @media (min-width: 721px) {
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-index,
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-beat-link,
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-all,
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-trail,
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-copy > #guided-view-label,
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-copy > #guided-view-note { display: none; }
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-story-caption { margin-top: 0.08rem; }
+    }
+    .guided-view-chapters {
+      display: flex;
+      gap: 0.28rem;
+      min-width: 0;
+      margin: 0;
+      padding: 0.08rem 0.05rem 0.2rem;
+      overflow-x: auto;
+      list-style: none;
+      scroll-padding-inline: 0.05rem;
+      scroll-snap-type: x proximity;
+      scrollbar-width: none;
+    }
+    .guided-view-chapters::-webkit-scrollbar { display: none; }
+    .guided-view-chapters li {
+      display: flex;
+      flex: 1 1 0;
+      min-width: 9.5rem;
+      scroll-snap-align: center;
+    }
+    .guided-view-chapter {
+      position: relative;
+      display: grid !important;
+      grid-template-columns: 1.55rem minmax(0, 1fr) auto;
+      align-items: center;
+      width: 100%;
+      min-height: 2.75rem;
+      padding: 0.36rem 0.48rem !important;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 86%, transparent) !important;
+      border-radius: 0.48rem !important;
+      background: color-mix(in srgb, var(--toolbar-bg) 88%, transparent) !important;
+      color: var(--text-muted) !important;
+      text-align: left;
+      transition: background 0.16s ease, border-color 0.16s ease, opacity 0.16s ease;
+    }
+    .guided-view-chapter:hover {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 58%, var(--toolbar-border)) !important;
+      background: color-mix(in srgb, var(--frontend-fill) 42%, var(--toolbar-bg)) !important;
+    }
+    .guided-view-chapter:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 1px;
+    }
+    .guided-view-chapter-index {
+      display: inline-grid;
+      width: 1.32rem;
+      height: 1.32rem;
+      place-items: center;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 48%, var(--toolbar-border));
+      border-radius: 50%;
+      color: var(--frontend-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.03em;
+    }
+    .guided-view-chapter-title {
+      min-width: 0;
+      overflow: hidden;
+      color: var(--toolbar-text);
+      font-size: 0.625rem;
+      font-weight: 700;
+      line-height: 1.3;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .guided-view-chapter-count {
+      grid-column: 3;
+      grid-row: 1;
+      margin-left: 0.38rem;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      font-style: normal;
+      font-weight: 650;
+      white-space: nowrap;
+    }
+    .guided-view-chapter-delta {
+      display: inline-flex;
+      grid-column: 3;
+      grid-row: 1;
+      align-items: center;
+      gap: 0.22rem;
+      margin-left: 0.38rem;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      font-weight: 750;
+      letter-spacing: 0.01em;
+      white-space: nowrap;
+    }
+    .guided-view-chapter-delta[hidden] { display: none; }
+    .guided-view-chapter-delta [data-delta-kind="stay"] { color: var(--text-muted); }
+    .guided-view-chapter-delta [data-delta-kind="enter"] { color: var(--frontend-stroke); }
+    .guided-view-chapter-delta [data-delta-kind="leave"] { color: var(--security-stroke); }
+    .guided-view-chapter[data-preview-active="true"] {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 72%, var(--toolbar-border)) !important;
+      background: color-mix(in srgb, var(--frontend-fill) 54%, var(--toolbar-bg)) !important;
+    }
+    .guided-view-chapter[data-chapter-position="current"] {
+      border: 2px solid var(--frontend-stroke) !important;
+      padding: calc(0.36rem - 1px) calc(0.48rem - 1px) !important;
+      box-shadow: inset 3px 0 0 var(--frontend-stroke);
+      color: var(--toolbar-text) !important;
+    }
+    .guided-view-chapter[data-chapter-position="current"] .guided-view-chapter-index {
+      background: var(--frontend-stroke);
+      color: var(--bg);
+    }
+    .guided-view-chapter[data-chapter-position="before"] {
+      border-style: solid !important;
+      opacity: 0.72;
+    }
+    .guided-view-chapter[data-chapter-position="after"] { border-style: dashed !important; }
+    html[data-preset="signal-flow"] .guided-view-chapter[data-chapter-position="current"] {
+      box-shadow: inset 3px 0 0 var(--frontend-stroke), 0 0 18px color-mix(in srgb, var(--frontend-stroke) 18%, transparent);
+    }
+    html[data-preset="blueprint"] .guided-view-chapter,
+    html[data-preset="blueprint"] .guided-view-chapter-index { border-radius: 0.12rem !important; }
+
+    /* Story Shelf — keep every authored chapter and the Play action visible,
+       but do not spend a second row on unavailable director controls before
+       the reader enters a chapter. Existing data-active-view state expands
+       the full guided surface without a new toggle or stored preference. */
+    .guided-views[data-active-view="all"] {
+      grid-template-columns: minmax(11rem, .72fr) auto minmax(0, 2fr);
+      align-items: center;
+      padding: 0.28rem 0.35rem;
+    }
+    .guided-views[data-active-view="all"] > #guided-view-prev,
+    .guided-views[data-active-view="all"] > #guided-view-next,
+    .guided-views[data-active-view="all"] .guided-view-beat-link,
+    .guided-views[data-active-view="all"] .guided-view-all { display: none; }
+    .guided-views[data-active-view="all"] .guided-view-copy {
+      grid-column: 1;
+      grid-row: 1;
+      padding: 0.1rem 0.55rem;
+    }
+    .guided-views[data-active-view="all"] .guided-view-copy > #guided-view-note { display: none; }
+    .guided-views[data-active-view="all"] .guided-view-actions {
+      display: block;
+      grid-column: 2;
+      grid-row: 1;
+    }
+    .guided-views[data-active-view="all"] .guided-view-play { min-height: 2.75rem; }
+    .guided-views[data-active-view="all"] .guided-view-index {
+      grid-column: 3;
+      grid-row: 1;
+      padding: 0 0.08rem 0 0.42rem;
+      border-top: 0;
+      border-left: 1px solid color-mix(in srgb, var(--toolbar-border) 72%, transparent);
+    }
+    .guided-views[data-active-view="all"] .guided-view-chapters {
+      gap: 0.3rem;
+      padding: 0;
+    }
+
+    .cards {
+      display: grid;
+      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
+      gap: 1rem;
+      margin-top: 2rem;
+    }
+
+    .card {
+      background: var(--panel);
+      border-radius: 0.75rem;
+      border: 1px solid var(--panel-border);
+      padding: 1.25rem;
+    }
+
+    html[data-preset="signal-flow"] .card {
+      background: linear-gradient(145deg, rgba(10, 24, 43, 0.86), rgba(5, 12, 24, 0.92));
+      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
+    }
+    html[data-preset="signal-flow"][data-theme="light"] .card {
+      background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(237, 246, 250, 0.9));
+      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.82), 0 12px 32px rgba(45, 78, 99, 0.08);
+    }
+
+    /* Preserve the one-screen guarantee on ordinary laptop displays. The
+       high-screen expansion above must not trade a fuller canvas for page
+       scrolling at 900–1080px heights. */
+    @media (min-width: 768px) and (max-height: 1100px) {
+      .header { margin-bottom: 1rem; }
+      .diagram-container {
+        padding: 0.875rem;
+        padding-bottom: calc(0.875rem + var(--archify-nav-reserve));
+      }
+      .cards { margin-top: 1rem; }
+      .card { padding: 1rem; }
+    }
+    @media (min-width: 768px) and (max-height: 920px) {
+      body { padding-block: 1.25rem; }
+      .header { margin-bottom: 0.875rem; }
+      .cards { margin-top: 0.75rem; }
+      html[data-nav-stage-rail="true"] body { padding-block: 0.375rem; }
+      html[data-nav-stage-rail="true"] .header { margin-bottom: 0.5rem; }
+      html[data-nav-stage-rail="true"] .guided-views { margin-bottom: 0.375rem; }
+      html[data-nav-stage-rail="true"] .diagram-container[data-nav-stage-rail="true"] { padding-top: 0.5rem; }
+      html[data-nav-stage-rail="true"] .cards { margin-top: 0.375rem; }
+    }
+
+    html[data-preset="blueprint"] .card {
+      position: relative;
+      border-color: var(--panel-border);
+      border-radius: 0.3rem;
+      background: var(--panel);
+      box-shadow: none;
+    }
+    html[data-preset="blueprint"] .card::before {
+      content: "";
+      position: absolute;
+      top: -1px;
+      left: 1rem;
+      width: 2.5rem;
+      border-top: 2px solid var(--frontend-stroke);
+    }
+
+    html[data-preset="editorial"] .card {
+      position: relative;
+      border-radius: 0.28rem;
+      background: var(--panel);
+      box-shadow: 0 10px 28px color-mix(in srgb, #000 10%, transparent);
+    }
+    html[data-preset="editorial"] .card::before {
+      position: absolute;
+      top: -1px;
+      left: 1.25rem;
+      width: 3.25rem;
+      border-top: 3px solid var(--arrow-emphasis);
+      content: "";
+    }
+    html[data-preset="editorial"] .card-dot { border-radius: 0; transform: rotate(45deg) scale(0.78); }
+
+    .card-header {
+      display: flex;
+      align-items: center;
+      gap: 0.5rem;
+      margin-bottom: 0.75rem;
+    }
+
+    .card-dot {
+      width: 8px;
+      height: 8px;
+      border-radius: 50%;
+    }
+
+    .card-dot.cyan     { background: var(--frontend-stroke); }
+    .card-dot.emerald  { background: var(--backend-stroke); }
+    .card-dot.violet   { background: var(--database-stroke); }
+    .card-dot.amber    { background: var(--cloud-stroke); }
+    .card-dot.rose     { background: var(--security-stroke); }
+    .card-dot.orange   { background: var(--messagebus-stroke); }
+    .card-dot.slate    { background: var(--external-stroke); }
+
+    .card h3 { font-size: 0.875rem; font-weight: 600; color: var(--text); }
+
+    .card ul {
+      list-style: none;
+      color: var(--text-muted);
+      font-size: 0.75rem;
+    }
+
+    .card li { margin-bottom: 0.375rem; }
+
+    /* ==========================================================
+       Print stylesheet — hide interactive controls, force light,
+       drop the grid so the diagram doesn't waste ink, use landscape
+       so wide diagrams fit, pack summary cards into 2 columns to
+       avoid an orphan card on a trailing page.
+       ========================================================== */
+    @page { size: landscape; margin: 1.5cm; }
+
+    @media print {
+      /* Force the FULL light palette — including component fills/strokes and
+         lane/arrow colors — so printing from dark theme doesn't put neon
+         strokes and translucent dark fills on white paper. */
+      :root, [data-theme="dark"], [data-theme="light"] {
+        --bg: #ffffff;
+        --grid: transparent;
+        --panel: #ffffff;
+        --panel-border: #e2e8f0;
+        --text: #0f172a;
+        --text-muted: #475569;
+        --text-dim: #94a3b8;
+        --text-faint: #64748b;
+        --mask: #ffffff;
+        --lane-fill: rgba(248, 250, 252, 0.65);
+        --lane-stroke: #cbd5e1;
+        --arrow: #94a3b8;
+        --arrow-emphasis: #059669;
+        --frontend-fill:    rgba(34, 211, 238, 0.15);
+        --frontend-stroke:  #0891b2;
+        --backend-fill:     rgba(52, 211, 153, 0.18);
+        --backend-stroke:   #059669;
+        --database-fill:    rgba(167, 139, 250, 0.2);
+        --database-stroke:  #7c3aed;
+        --cloud-fill:       rgba(251, 191, 36, 0.18);
+        --cloud-stroke:     #d97706;
+        --security-fill:    rgba(251, 113, 133, 0.15);
+        --security-stroke:  #e11d48;
+        --messagebus-fill:  rgba(251, 146, 60, 0.15);
+        --messagebus-stroke:#ea580c;
+        --external-fill:    rgba(148, 163, 184, 0.18);
+        --external-stroke:  #64748b;
+      }
+      body { background: #ffffff !important; padding: 0; }
+      .container { max-width: none; }
+      .toolbar, .diagram-nav, .focus-chip, .guided-views, .archify-toast, .no-print { display: none !important; }
+      .chapter-handoff-overlay { display: none !important; }
+      svg [data-node-id][data-chapter-role] { opacity: 1 !important; }
+      svg[data-chapter-preview] [data-node-id],
+      svg[data-chapter-preview] [data-edge-from] { opacity: 1 !important; filter: none !important; }
+      .diagram-container, .card { box-shadow: none; border-color: #e2e8f0; }
+      .diagram-container { --archify-nav-reserve: 0px !important; }
+      html[data-preset="signal-flow"] .diagram-container,
+      html[data-preset="signal-flow"] .card { background: #ffffff; }
+      .cards { grid-template-columns: 1fr 1fr; }
+      /* Ensure elements break sensibly across pages */
+      .card { break-inside: avoid; page-break-inside: avoid; }
+      .diagram-container { break-inside: avoid; page-break-inside: avoid; }
+      .diagram-container svg [data-detail] {
+        opacity: 1 !important;
+        pointer-events: auto !important;
+      }
+      .diagram-container svg [data-detail-anchor] { transform: none !important; }
+      .diagram-container svg[data-lens-active] [data-node-id],
+      .diagram-container svg[data-lens-active] [data-edge-from],
+      .diagram-container svg[data-legend-preview-active] [data-node-id],
+      .diagram-container svg[data-legend-preview-active] [data-edge-from] {
+        opacity: 1 !important;
+        filter: none !important;
+      }
+      [data-legend-bridge-runtime] { display: none !important; }
+      .semantic-lens-overlay { display: none !important; }
+      .relationship-hit-overlay { display: none !important; }
+      .relationship-pulse-overlay { display: none !important; }
+      .route-probe-overlay, .route-journey-overlay { display: none !important; }
+      .story-trail-overlay,
+      .story-carrier-overlay { display: none !important; }
+      .diagram-container svg[data-focus-active] [data-node-id],
+      .diagram-container svg[data-focus-active] [data-edge-from],
+      .diagram-container svg[data-reach-active] [data-node-id],
+      .diagram-container svg[data-reach-active] [data-edge-from],
+      .diagram-container svg[data-story-beat] [data-story-step],
+      .diagram-container svg[data-story-beat] [data-edge-from][data-story-beat-step],
+      .diagram-container svg[data-route-active] [data-node-id],
+      .diagram-container svg[data-route-active] [data-edge-from] {
+        opacity: 1 !important;
+        filter: none !important;
+        animation: none !important;
+      }
+      h1, .subtitle { color: #0f172a; }
+    }
+
+    /* ==========================================================
+       TOOLBAR (theme toggle + export menu)
+       ========================================================== */
+    .toolbar {
+      position: fixed;
+      top: 1rem;
+      right: 1rem;
+      display: flex;
+      align-items: center;
+      gap: 0.5rem;
+      padding: 0;
+      border: 0;
+      background: transparent;
+      box-shadow: none;
+      z-index: 100;
+    }
+    .toolbar button {
+      background: var(--toolbar-bg);
+      color: var(--toolbar-text);
+      border: 1px solid var(--toolbar-border);
+      padding: 0.5rem 0.875rem;
+      border-radius: 0.625rem;
+      font-family: inherit;
+      font-size: 0.75rem;
+      font-weight: 500;
+      cursor: pointer;
+      white-space: nowrap;
+      backdrop-filter: blur(10px);
+      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
+      transition: background 0.15s, border-color 0.15s, color 0.15s;
+      display: inline-flex;
+      align-items: center;
+      gap: 0.375rem;
+      min-height: 2.75rem;
+    }
+    .toolbar button:hover {
+      background: var(--toolbar-hover);
+      border-color: color-mix(in srgb, var(--arrow) 62%, var(--toolbar-border));
+    }
+    .toolbar button[aria-expanded="true"],
+    .toolbar button[aria-pressed="true"]:not(#btn-theme) {
+      background: color-mix(in srgb, var(--frontend-stroke) 10%, var(--toolbar-hover));
+      border-color: color-mix(in srgb, var(--frontend-stroke) 48%, var(--toolbar-border));
+    }
+    .toolbar #btn-export {
+      padding-right: 0.82rem;
+      padding-left: 0.82rem;
+    }
+    .toolbar #btn-export:hover,
+    .toolbar #btn-export[aria-expanded="true"] {
+      color: var(--toolbar-text);
+      background: color-mix(in srgb, var(--frontend-stroke) 10%, var(--toolbar-hover));
+      border-color: color-mix(in srgb, var(--frontend-stroke) 54%, var(--toolbar-border));
+    }
+    .toolbar button:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 2px;
+    }
+    .toolbar #btn-motion[hidden] { display: none !important; }
+    .toolbar #btn-motion { min-width: 4.4rem; }
+    .toolbar #btn-motion:disabled { cursor: default; opacity: 0.58; }
+    .toolbar .preset-wrap,
+    .toolbar .export-wrap {
+      position: relative;
+    }
+    .toolbar-icon {
+      display: inline-block;
+      width: 0.95rem;
+      height: 0.95rem;
+      flex: 0 0 auto;
+      background: currentColor;
+      -webkit-mask-position: center;
+      -webkit-mask-repeat: no-repeat;
+      -webkit-mask-size: contain;
+      mask-position: center;
+      mask-repeat: no-repeat;
+      mask-size: contain;
+    }
+    .toolbar-chevron {
+      width: 0.65rem;
+      height: 0.65rem;
+      transition: transform 0.15s ease;
+    }
+    [aria-expanded="true"] > .toolbar-chevron { transform: rotate(180deg); }
+    [data-theme="light"] #theme-icon {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cg fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'%3E%3Ccircle cx='10' cy='10' r='3.1'/%3E%3Cpath d='M10 2.2v1.4M10 16.4v1.4M2.2 10h1.4M16.4 10h1.4M4.5 4.5l1 1M14.5 14.5l1 1M15.5 4.5l-1 1M5.5 14.5l-1 1'/%3E%3C/g%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cg fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'%3E%3Ccircle cx='10' cy='10' r='3.1'/%3E%3Cpath d='M10 2.2v1.4M10 16.4v1.4M2.2 10h1.4M16.4 10h1.4M4.5 4.5l1 1M14.5 14.5l1 1M15.5 4.5l-1 1M5.5 14.5l-1 1'/%3E%3C/g%3E%3C/svg%3E");
+    }
+    [data-theme="dark"] #theme-icon {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M15.2 12.7A6.3 6.3 0 017.3 4.8a6.3 6.3 0 107.9 7.9Z' fill='none' stroke='black' stroke-width='1.7' stroke-linejoin='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M15.2 12.7A6.3 6.3 0 017.3 4.8a6.3 6.3 0 107.9 7.9Z' fill='none' stroke='black' stroke-width='1.7' stroke-linejoin='round'/%3E%3C/svg%3E");
+    }
+    #btn-present[aria-pressed="false"] #present-icon {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M7.2 3.2h-4v4M12.8 3.2h4v4M7.2 16.8h-4v-4M12.8 16.8h4v-4' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M7.2 3.2h-4v4M12.8 3.2h4v4M7.2 16.8h-4v-4M12.8 16.8h4v-4' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    #btn-present[aria-pressed="true"] #present-icon {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M7.2 7.2h-4v-4M12.8 7.2h4v-4M7.2 12.8h-4v4M12.8 12.8h4v4' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M7.2 7.2h-4v-4M12.8 7.2h4v-4M7.2 12.8h-4v4M12.8 12.8h4v4' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    .toolbar-chevron {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='m3 4.5 3 3 3-3' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='m3 4.5 3 3 3-3' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+    }
+    .toolbar #btn-preset { min-width: 5.4rem; }
+    .preset-control-mark {
+      width: 0.58rem;
+      height: 0.58rem;
+      flex: 0 0 auto;
+      border: 1px solid var(--frontend-stroke);
+      border-radius: 0.2rem;
+      background: color-mix(in srgb, var(--frontend-stroke) 28%, transparent);
+      transition: border-radius 0.15s, box-shadow 0.15s, transform 0.15s;
+    }
+    #btn-preset[data-preset-option="signal-flow"] .preset-control-mark {
+      border-radius: 50%;
+      box-shadow: 0 0 10px color-mix(in srgb, var(--frontend-stroke) 78%, transparent);
+    }
+    #btn-preset[data-preset-option="blueprint"] .preset-control-mark {
+      border-radius: 0.06rem;
+      background: transparent;
+      box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--frontend-stroke) 32%, transparent);
+      transform: rotate(45deg) scale(0.84);
+    }
+    #btn-preset[data-preset-option="editorial"] .preset-control-mark {
+      border-color: var(--arrow-emphasis);
+      border-radius: 0;
+      background: var(--arrow-emphasis);
+      box-shadow: 0 0 0 2px color-mix(in srgb, var(--arrow-emphasis) 14%, transparent);
+      transform: rotate(45deg) scale(0.72);
+    }
+    .toolbar .preset-menu {
+      position: absolute;
+      top: calc(100% + 0.375rem);
+      right: 0;
+      display: none;
+      width: 18.5rem;
+      max-width: calc(100vw - 2rem);
+      padding: 0.45rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.875rem;
+      background: var(--toolbar-menu-bg);
+      box-shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
+    }
+    .toolbar .preset-menu.open { display: block; }
+    .toolbar .preset-menu.open,
+    .toolbar .export-menu.open {
+      animation: toolbar-menu-in 0.16s cubic-bezier(0.2, 0.8, 0.2, 1);
+      transform-origin: top right;
+    }
+    @keyframes toolbar-menu-in {
+      from { opacity: 0; transform: translateY(-0.25rem) scale(0.985); }
+      to { opacity: 1; transform: translateY(0) scale(1); }
+    }
+    .preset-menu-heading {
+      display: flex;
+      align-items: baseline;
+      justify-content: space-between;
+      gap: 1rem;
+      padding: 0.42rem 0.6rem 0.55rem;
+      color: var(--text-faint);
+      font-size: 0.56rem;
+      letter-spacing: 0.13em;
+      text-transform: uppercase;
+    }
+    .preset-menu-heading span:last-child {
+      font-size: 0.52rem;
+      letter-spacing: 0.04em;
+      text-transform: none;
+    }
+    .toolbar .preset-option {
+      display: grid;
+      grid-template-columns: 2rem minmax(0, 1fr) 1rem;
+      align-items: center;
+      gap: 0.68rem;
+      width: 100%;
+      min-height: 3.35rem;
+      padding: 0.5rem 0.62rem;
+      border: 0;
+      border-radius: 0.5rem;
+      background: transparent;
+      box-shadow: none;
+      backdrop-filter: none;
+      text-align: left;
+    }
+    .toolbar .preset-option:hover,
+    .toolbar .preset-option:focus-visible { background: var(--toolbar-hover); }
+    .toolbar .preset-option[aria-checked="true"] {
+      background: color-mix(in srgb, var(--frontend-stroke) 9%, transparent);
+      border-color: color-mix(in srgb, var(--frontend-stroke) 36%, transparent);
+    }
+    .preset-option-swatch {
+      position: relative;
+      width: 2rem;
+      height: 1.55rem;
+      overflow: hidden;
+      border: 1px solid #64748b;
+      border-radius: 0.24rem;
+      background: #0f172a;
+      box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04);
+    }
+    .preset-option-swatch::before,
+    .preset-option-swatch::after { position: absolute; content: ""; }
+    .preset-option-swatch.classic::before {
+      top: 0.42rem;
+      right: 0.35rem;
+      bottom: 0.42rem;
+      left: 0.35rem;
+      border: 1px solid #22d3ee;
+      border-radius: 0.16rem;
+      background: rgba(34, 211, 238, 0.14);
+    }
+    .preset-option-swatch.signal-flow {
+      border-color: #29415f;
+      background: linear-gradient(135deg, #07101e 10%, #10243c 100%);
+    }
+    .preset-option-swatch.signal-flow::before {
+      top: 50%;
+      right: 0.2rem;
+      left: 0.2rem;
+      height: 1px;
+      background: linear-gradient(90deg, #67e8f9, #c4b5fd);
+      box-shadow: 0 0 8px #67e8f9;
+    }
+    .preset-option-swatch.signal-flow::after {
+      top: calc(50% - 0.13rem);
+      right: 0.28rem;
+      width: 0.26rem;
+      height: 0.26rem;
+      border-radius: 50%;
+      background: #67e8f9;
+      box-shadow: 0 0 7px #67e8f9;
+    }
+    .preset-option-swatch.blueprint {
+      border-color: #34799a;
+      border-radius: 0.08rem;
+      background-color: #0a2031;
+      background-image:
+        linear-gradient(rgba(102, 217, 239, 0.18) 1px, transparent 1px),
+        linear-gradient(90deg, rgba(102, 217, 239, 0.18) 1px, transparent 1px);
+      background-size: 0.42rem 0.42rem;
+    }
+    .preset-option-swatch.blueprint::before {
+      top: 0.34rem;
+      right: 0.38rem;
+      bottom: 0.34rem;
+      left: 0.38rem;
+      border: 1px solid #66d9ef;
+    }
+    .preset-option-swatch.editorial {
+      border-color: #b8aa94;
+      border-radius: 0.08rem;
+      background: repeating-linear-gradient(0deg, #f2eee5 0 0.34rem, #d8d0c2 0.36rem, #f2eee5 0.38rem);
+    }
+    .preset-option-swatch.editorial::before {
+      top: 0;
+      bottom: 0;
+      left: 0.42rem;
+      width: 1px;
+      background: #c9502d;
+      opacity: 0.72;
+    }
+    .preset-option-swatch.editorial::after {
+      top: 0.52rem;
+      right: 0.45rem;
+      width: 0.38rem;
+      height: 0.38rem;
+      background: #c9502d;
+      transform: rotate(45deg);
+    }
+    .preset-option-copy { min-width: 0; }
+    .preset-option-copy strong,
+    .preset-option-copy small { display: block; }
+    .preset-option-copy strong {
+      color: var(--toolbar-text);
+      font-size: 0.72rem;
+      font-weight: 600;
+    }
+    .preset-option-copy small {
+      margin-top: 0.16rem;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.57rem;
+      font-weight: 400;
+      white-space: nowrap;
+      text-overflow: ellipsis;
+    }
+    .preset-option-check {
+      display: inline-block;
+      width: 0.9rem;
+      height: 0.9rem;
+      color: var(--frontend-stroke);
+      background: currentColor;
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='m3 8.5 3 3 7-7' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+      -webkit-mask-position: center;
+      -webkit-mask-repeat: no-repeat;
+      -webkit-mask-size: contain;
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='m3 8.5 3 3 7-7' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+      mask-position: center;
+      mask-repeat: no-repeat;
+      mask-size: contain;
+      opacity: 0;
+    }
+    .preset-option[aria-checked="true"] .preset-option-check { opacity: 1; }
+    html[data-preset="editorial"] .toolbar button,
+    html[data-preset="editorial"] .preset-menu,
+    html[data-preset="editorial"] .export-menu,
+    html[data-preset="editorial"] .overview-map,
+    html[data-preset="editorial"] .semantic-lens,
+    html[data-preset="editorial"] .route-probe,
+    html[data-preset="editorial"] .focus-chip,
+    html[data-preset="editorial"] .diagram-guide,
+    html[data-preset="editorial"] .node-finder,
+    html[data-preset="editorial"] .guided-views,
+    html[data-preset="editorial"] .share-chapter-cue {
+      border-radius: 0.3rem;
+    }
+    .motion-control-dot {
+      width: 0.46rem;
+      height: 0.46rem;
+      flex: 0 0 auto;
+      border: 1px solid var(--frontend-stroke);
+      border-radius: 50%;
+      background: var(--frontend-stroke);
+      box-shadow: 0 0 9px color-mix(in srgb, var(--frontend-stroke) 72%, transparent);
+    }
+    #btn-motion[aria-pressed="false"] .motion-control-dot {
+      background: transparent;
+      box-shadow: none;
+    }
+    .toolbar .export-menu {
+      position: absolute;
+      top: calc(100% + 0.375rem);
+      right: 0;
+      background: var(--toolbar-menu-bg);
+      border: 1px solid var(--toolbar-border);
+      width: 19rem;
+      max-width: calc(100vw - 2rem);
+      max-height: calc(100vh - 5.5rem);
+      overflow-y: auto;
+      border-radius: 0.875rem;
+      padding: 0.55rem;
+      display: none;
+      flex-direction: column;
+      box-shadow: 0 18px 48px rgba(0,0,0,0.24);
+    }
+    .toolbar .export-menu.open { display: flex; }
+    .export-menu-header {
+      display: flex;
+      align-items: flex-start;
+      justify-content: space-between;
+      gap: 1rem;
+      padding: 0.5rem 0.55rem 0.72rem;
+    }
+    .export-menu-header strong,
+    .export-menu-header span { display: block; }
+    .export-menu-header strong {
+      color: var(--toolbar-text);
+      font-size: 0.78rem;
+      font-weight: 650;
+      letter-spacing: -0.015em;
+    }
+    .export-menu-header span {
+      margin-top: 0.16rem;
+      color: var(--text-faint);
+      font-size: 0.56rem;
+    }
+    .export-menu-header kbd {
+      padding: 0.16rem 0.36rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.3rem;
+      color: var(--text-faint);
+      background: color-mix(in srgb, var(--toolbar-border) 16%, transparent);
+      font-family: inherit;
+      font-size: 0.54rem;
+      font-weight: 600;
+    }
+    .export-menu-section {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr);
+      gap: 0.18rem;
+    }
+    .export-menu-section + .export-menu-section {
+      margin-top: 0.42rem;
+      padding-top: 0.42rem;
+      border-top: 1px solid color-mix(in srgb, var(--toolbar-border) 68%, transparent);
+    }
+    .export-menu-heading {
+      grid-column: 1 / -1;
+      display: block;
+      padding: 0.24rem 0.55rem 0.2rem;
+      color: var(--text-faint);
+      font-size: 0.54rem;
+      font-weight: 600;
+      letter-spacing: 0.12em;
+      text-transform: uppercase;
+    }
+    .toolbar .export-menu button {
+      display: grid;
+      grid-template-columns: 1.15rem minmax(0, 1fr);
+      align-items: center;
+      column-gap: 0.52rem;
+      background: transparent;
+      border: 1px solid transparent;
+      box-shadow: none;
+      backdrop-filter: none;
+      width: 100%;
+      min-height: 3rem;
+      text-align: left;
+      padding: 0.48rem 0.55rem;
+      border-radius: 0.5rem;
+      white-space: nowrap;
+    }
+    .export-item-copy {
+      display: block;
+      min-width: 0;
+    }
+    .export-item-copy strong,
+    .export-item-copy small { display: block; }
+    .export-item-copy strong {
+      overflow: hidden;
+      color: inherit;
+      font-size: 0.7rem;
+      font-weight: 550;
+      text-overflow: ellipsis;
+    }
+    .export-item-copy small {
+      margin-top: 0.12rem;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.55rem;
+      font-weight: 450;
+      text-overflow: ellipsis;
+    }
+    .toolbar .export-menu button::before {
+      width: 1rem;
+      height: 1rem;
+      background: currentColor;
+      content: "";
+      opacity: 0.72;
+      -webkit-mask-position: center;
+      -webkit-mask-repeat: no-repeat;
+      -webkit-mask-size: contain;
+      mask-position: center;
+      mask-repeat: no-repeat;
+      mask-size: contain;
+    }
+    .toolbar .export-menu button[data-format="share-card"]::before,
+    .toolbar .export-menu button[data-action="route-share-card"]::before,
+    .toolbar .export-menu button[data-action="reach-share-card"]::before {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='none' stroke='black' stroke-width='1.7' d='M3 4.5h14v11H3zM6 12l2.5-2.5 2 2 1.5-1.5 2 2'/%3E%3Ccircle cx='13.8' cy='7.3' r='1.2' fill='black'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='none' stroke='black' stroke-width='1.7' d='M3 4.5h14v11H3zM6 12l2.5-2.5 2 2 1.5-1.5 2 2'/%3E%3Ccircle cx='13.8' cy='7.3' r='1.2' fill='black'/%3E%3C/svg%3E");
+    }
+    .toolbar .export-menu button[data-action^="copy"]::before {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Crect x='6' y='6' width='10' height='10' rx='1.5' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M4 13H3.5A1.5 1.5 0 012 11.5v-8A1.5 1.5 0 013.5 2h8A1.5 1.5 0 0113 3.5V4' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Crect x='6' y='6' width='10' height='10' rx='1.5' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M4 13H3.5A1.5 1.5 0 012 11.5v-8A1.5 1.5 0 013.5 2h8A1.5 1.5 0 0113 3.5V4' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+    }
+    .toolbar .export-menu button[data-format="png"]::before,
+    .toolbar .export-menu button[data-format="jpeg"]::before,
+    .toolbar .export-menu button[data-format="webp"]::before {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 2.5h7l3 3v12H5zM12 2.5v3h3' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M7.5 14l2-2 1.5 1.5 1.5-1.5' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 2.5h7l3 3v12H5zM12 2.5v3h3' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M7.5 14l2-2 1.5 1.5 1.5-1.5' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+    }
+    .toolbar .export-menu button[data-format="svg"]::before,
+    .toolbar .export-menu button[data-format="webm"]::before {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 2.5l7 4v7l-7 4-7-4v-7zM3 6.5l7 4 7-4M10 10.5v7' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 2.5l7 4v7l-7 4-7-4v-7zM3 6.5l7 4 7-4M10 10.5v7' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+    }
+    .toolbar .export-menu button[data-format="share-card"],
+    .toolbar .export-menu button[data-action="route-share-card"],
+    .toolbar .export-menu button[data-action="reach-share-card"] {
+      min-height: 3.35rem;
+      color: var(--toolbar-text);
+      background: color-mix(in srgb, var(--frontend-stroke) 8%, transparent);
+      border-color: color-mix(in srgb, var(--frontend-stroke) 24%, var(--toolbar-border));
+    }
+    .toolbar .export-menu button[hidden] { display: none; }
+    .toolbar .export-menu button:hover {
+      background: var(--toolbar-hover);
+    }
+    .toolbar .export-menu button:focus-visible {
+      background: var(--toolbar-hover);
+      outline-offset: -2px;
+    }
+    .toolbar .export-menu button:disabled {
+      color: var(--text-faint);
+      background: color-mix(in srgb, var(--toolbar-border) 18%, transparent);
+      cursor: not-allowed;
+    }
+    .toolbar .export-menu button:disabled:hover {
+      border-color: transparent;
+    }
+    .toolbar .export-menu .hint {
+      color: var(--text-faint);
+      font-size: 0.55rem;
+    }
+
+    /* Toast — brief feedback for actions like "copied" */
+    .archify-toast {
+      position: fixed;
+      top: 1rem;
+      left: 50%;
+      transform: translateX(-50%) translateY(-8px);
+      background: var(--toolbar-menu-bg);
+      color: var(--text);
+      border: 1px solid var(--toolbar-border);
+      padding: 0.5rem 1rem;
+      border-radius: 0.5rem;
+      font-family: inherit;
+      font-size: 0.75rem;
+      opacity: 0;
+      transition: opacity 0.2s, transform 0.2s;
+      z-index: 200;
+      pointer-events: none;
+      box-shadow: 0 4px 20px rgba(0,0,0,0.25);
+    }
+    .archify-toast.show {
+      opacity: 1;
+      transform: translateX(-50%) translateY(0);
+    }
+
+    @media (max-width: 720px) {
+      body { padding: 1rem; }
+      .toolbar .preset-menu,
+      .toolbar .export-menu {
+        position: fixed;
+        top: 4.5rem;
+        right: 1rem;
+        left: 1rem;
+        width: auto;
+        max-width: none;
+      }
+      .toolbar {
+        position: relative;
+        justify-content: flex-end;
+        width: max-content;
+        max-width: 100%;
+        margin-left: auto;
+        margin-bottom: 1rem;
+      }
+      .header { margin-bottom: 1.25rem; padding-right: 0; }
+      html[data-preset="signal-flow"] .header,
+      html[data-preset="blueprint"] .header,
+      html[data-preset="editorial"] .header { padding-right: 0; }
+      .header-row {
+        gap: 0.75rem;
+        align-items: flex-start;
+      }
+      html[data-preset="signal-flow"] .header-row,
+      html[data-preset="blueprint"] .header-row,
+      html[data-preset="editorial"] .header-row { flex-wrap: wrap; }
+      html[data-preset="signal-flow"] .header-row::after {
+        margin-left: 0;
+        order: 3;
+      }
+      html[data-preset="blueprint"] .header-row::after {
+        margin-left: 0;
+        order: 3;
+      }
+      html[data-preset="editorial"] .header-row::after {
+        margin-left: 0;
+        order: 3;
+      }
+      h1 {
+        font-size: 1.25rem;
+        line-height: 1.25;
+      }
+      .subtitle {
+        margin-left: 0;
+        font-size: 0.8125rem;
+        line-height: 1.55;
+      }
+      .diagram-container {
+        padding: 0.75rem;
+        border-radius: 0.75rem;
+      }
+      html:not([data-embed="true"]) .diagram-container {
+        padding: 0.75rem 0.75rem 4.25rem;
+      }
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] {
+        overflow-x: auto;
+        overflow-y: hidden;
+        overscroll-behavior-x: contain;
+        scrollbar-width: thin;
+        scroll-behavior: smooth;
+      }
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] > svg {
+        min-width: 720px;
+      }
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .diagram-nav,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .overview-map,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .focus-chip,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .route-probe,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .semantic-lens,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .diagram-guide,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .node-finder {
+        transform: translateX(var(--archify-scroll-x, 0px));
+      }
+      .diagram-nav { right: 0.5rem; bottom: 0.5rem; }
+      .diagram-nav button {
+        min-width: 2.75rem;
+        height: 2.75rem;
+      }
+      .diagram-nav [data-view="reset"] { min-width: 3.75rem; }
+      .diagram-nav [data-view="reset"][data-detail-visible] { min-width: 4.35rem; }
+      .overview-map {
+        right: 0.5rem;
+        bottom: 3.7rem;
+        width: min(10.25rem, calc(100% - 1rem));
+      }
+      .overview-map[data-docked="true"] {
+        right: var(--archify-radar-right, 0.5rem);
+        top: var(--archify-radar-top, 0.5rem);
+        bottom: auto;
+        transform: none !important;
+      }
+      .overview-map[data-docked="true"][data-dock-side="left"] {
+        right: auto;
+        left: var(--archify-radar-left, 0.5rem);
+      }
+      .overview-map-surface { height: 4rem; }
+      .overview-map-feedback { right: 0.5rem; bottom: 3.7rem; }
+      .semantic-lens {
+        right: 0.5rem;
+        bottom: 3.7rem;
+        width: calc(100% - 1rem);
+        max-height: calc(100% - 4.2rem);
+      }
+      .semantic-lens[data-dock-side] { left: auto; right: 0.5rem; }
+      .semantic-lens-kinds { max-height: min(12rem, 34vh); }
+      .focus-chip {
+        left: 0.5rem;
+        top: 0.5rem;
+        width: calc(100% - 1rem);
+        max-width: none;
+      }
+      .relationship-lens-list { max-height: min(12rem, 38vh); }
+      .relationship-lens-actions #btn-focus-relations { display: block; color: var(--database-stroke); }
+      .focus-chip:not([data-relations-expanded="true"]) .relationship-lens-head { border-bottom-color: transparent; }
+      .focus-chip:not([data-relations-expanded="true"]) .relationship-lens-list { display: none; }
+      /* While a mobile reader previews one relationship, turn the full Lens
+         into a compact peek card. This keeps the exact source and target on
+         canvas instead of covering them with a long, scrollable list. */
+      .focus-chip[data-relationship-previewing="true"] .relationship-lens-list {
+        max-height: none;
+        padding: 0.35rem;
+        overflow: hidden;
+      }
+      .focus-chip[data-relationship-previewing="true"] .relationship-lens-group { margin: 0; }
+      .focus-chip[data-relationship-previewing="true"] .relationship-lens-group-title,
+      .focus-chip[data-relationship-previewing="true"] .relationship-lens-row:not([data-preview-active="true"]) {
+        display: none;
+      }
+      .node-finder {
+        top: 0.5rem;
+        left: 0.5rem;
+        width: min(22rem, calc(100% - 1rem));
+        max-height: calc(100% - 1rem);
+      }
+      .diagram-guide {
+        top: 0.5rem;
+        right: 0.5rem;
+        left: 0.5rem;
+        width: auto;
+        max-height: calc(100% - 1rem);
+      }
+      .diagram-guide-head { padding: 0.62rem 0.7rem 0.52rem; }
+      .diagram-guide-stats { padding: 0.42rem 0.7rem; }
+      .diagram-guide-actions {
+        grid-template-columns: 1fr;
+        gap: 0.28rem;
+        padding: 0.42rem;
+      }
+      .diagram-guide-action {
+        min-height: 3.1rem;
+        padding: 0.42rem 0.48rem;
+      }
+      .diagram-guide-action small {
+        display: block;
+        overflow: hidden;
+        text-overflow: ellipsis;
+        white-space: nowrap;
+      }
+      .diagram-guide-index {
+        width: 1.5rem;
+        height: 1.5rem;
+      }
+      .diagram-guide-shortcuts { padding: 0.46rem 0.7rem 0.52rem; }
+      .diagram-guide-action[data-guide-action="present"] { grid-column: auto; }
+      .route-probe[data-guide-open="true"] {
+        visibility: hidden;
+        pointer-events: none;
+      }
+      .node-finder-results { max-height: min(16rem, 38vh); }
+      .route-probe {
+        left: 0.5rem;
+        bottom: 3.7rem;
+        width: calc(100% - 1rem);
+        min-width: 0;
+      }
+      .route-probe[data-route-dock="top"] {
+        top: 0.5rem;
+        bottom: auto;
+      }
+      .route-probe[data-finder-open="true"] {
+        visibility: hidden;
+        pointer-events: none;
+      }
+      .route-probe-head { padding: 0.45rem 0.48rem 0.38rem; }
+      .route-probe-path { padding: 0.35rem 0.48rem 0.2rem; }
+      .route-probe-node { min-height: 2.75rem !important; }
+      .route-journey-controls {
+        grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem minmax(0, 1fr);
+        padding: 0.08rem 0.48rem 0.32rem;
+      }
+      .route-journey-controls button { min-height: 2.75rem; }
+      .route-probe-status { padding: 0.05rem 0.48rem 0.38rem; }
+      .route-probe-node { max-width: 7.5rem; }
+      .guided-views {
+        grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem;
+        gap: 0.2rem;
+        padding: 0.25rem;
+      }
+      .guided-view-actions {
+        grid-column: 1 / -1;
+        display: grid;
+        grid-template-columns: repeat(3, minmax(0, 1fr));
+      }
+      .guided-views > #guided-view-prev,
+      .guided-views > #guided-view-next {
+        align-self: center;
+        height: 2.75rem;
+      }
+      .guided-view-play,
+      .guided-view-all,
+      .guided-view-beat-link { min-height: 2.75rem; }
+      .guided-view-copy small { white-space: normal; }
+      .guided-story-caption { padding: 0.32rem 0.45rem; }
+      .guided-story-caption-index { min-width: 2.9rem; padding-right: 0.42rem; }
+      .guided-story-caption strong,
+      .guided-story-caption small { white-space: normal; }
+      .guided-story-caption-next { display: none; }
+      .guided-view-trail { min-height: 2rem; }
+      .guided-view-trail .guided-view-stop {
+        min-height: 2rem;
+        padding: 0.22rem 0.42rem 0.22rem 0.28rem;
+      }
+      .guided-view-handoff { max-width: min(9rem, 32vw); }
+      .guided-view-index { padding-top: 0.35rem; }
+      .guided-view-chapters {
+        gap: 0.35rem;
+        scroll-padding-inline: 0.2rem;
+      }
+      .guided-view-chapters li {
+        flex: 0 0 min(14rem, 78vw);
+        min-width: 0;
+      }
+      .guided-view-chapter { min-height: 2.75rem; }
+      .guided-views[data-active-view="all"] {
+        grid-template-columns: minmax(0, 1fr) auto;
+        gap: 0.2rem;
+        padding: 0.25rem;
+      }
+      .guided-views[data-active-view="all"] .guided-view-copy {
+        grid-column: 1;
+        grid-row: 1;
+      }
+      .guided-views[data-active-view="all"] .guided-view-actions {
+        grid-column: 2;
+        grid-row: 1;
+      }
+      .guided-views[data-active-view="all"] .guided-view-play {
+        min-width: 6rem !important;
+        min-height: 2.75rem;
+      }
+      .guided-views[data-active-view="all"] .guided-view-index {
+        grid-column: 1 / -1;
+        grid-row: 2;
+        padding: 0.3rem 0.08rem 0;
+        border-top: 1px solid color-mix(in srgb, var(--toolbar-border) 72%, transparent);
+        border-left: 0;
+      }
+      html[data-embed="true"][data-share-playback="true"] .share-chapter-cue:not([hidden]),
+      html[data-embed="true"][data-share-moment="true"] .share-chapter-cue:not([hidden]) {
+        top: 0.5rem;
+        grid-template-columns: auto minmax(0, 1fr);
+        gap: 0.28rem 0.55rem;
+        width: calc(100% - 1rem);
+        min-height: 0;
+        padding: 0.45rem 0.55rem 0.55rem;
+      }
+      html[data-embed="true"][data-share-playback="true"] .diagram-container {
+        padding-top: 4.25rem;
+      }
+      html[data-embed="true"][data-share-moment="true"] .diagram-container {
+        padding-top: 4.25rem;
+      }
+      .share-chapter-index {
+        min-width: 4.4rem;
+        padding-right: 0.5rem;
+      }
+      .share-chapter-copy small { font-size: 0.46rem; }
+      .share-chapter-route {
+        grid-column: 1 / -1;
+        font-size: 0.5rem;
+        text-align: left;
+      }
+      .cards {
+        grid-template-columns: 1fr;
+        margin-top: 1rem;
+      }
+      html[data-present="true"]:not([data-embed="true"]) body { padding: 0.5rem; }
+      html[data-present="true"]:not([data-embed="true"]) .container {
+        gap: 0.5rem;
+        height: calc(100dvh - 1rem);
+      }
+      html[data-present="true"]:not([data-embed="true"]) .toolbar {
+        position: fixed;
+        top: 0.5rem;
+        right: 0.5rem;
+        margin: 0;
+        gap: 0.25rem;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .toolbar button {
+        min-height: 2.75rem;
+        padding: 0.42rem 0.58rem;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .header {
+        min-height: 2.25rem;
+        padding: 3.5rem 0 0;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .header-row {
+        min-height: 2.25rem;
+        margin: 0;
+        align-items: center;
+        flex-wrap: nowrap;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .header-row::after,
+      html[data-present="true"]:not([data-embed="true"]) .pulse-dot,
+      html[data-present="true"]:not([data-embed="true"]) .subtitle { display: none; }
+      html[data-present="true"]:not([data-embed="true"]) h1 {
+        flex: 1 1 auto;
+        min-width: 0;
+        max-width: 100%;
+        overflow: hidden;
+        font-size: 0.875rem;
+        text-overflow: ellipsis;
+        white-space: nowrap;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .guided-views {
+        padding: 0.2rem;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .guided-view-copy small { display: none; }
+      html[data-present="true"]:not([data-embed="true"]) .guided-story-caption small { display: block; }
+      html[data-present="true"]:not([data-embed="true"]) .diagram-container { padding: 0.5rem 0.5rem 3.75rem; }
+      html[data-present="true"]:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] > svg {
+        width: 720px;
+        height: auto;
+        min-width: 720px;
+      }
+    }
+
+    @media (max-width: 420px) {
+      .export-menu-section { grid-template-columns: 1fr; }
+      .export-menu-heading,
+      .toolbar .export-menu button[data-format="share-card"],
+      .toolbar .export-menu button[data-action="route-share-card"],
+      .toolbar .export-menu button[data-action="reach-share-card"] { grid-column: 1; }
+    }
+
+    @media (prefers-reduced-motion: reduce) {
+      .guided-story-caption { animation: none !important; }
+      .toolbar .preset-menu.open,
+      .toolbar .export-menu.open { animation: none; }
+      .toolbar-chevron { transition: none; }
+    }
+
+    @media (max-width: 360px) {
+      .toolbar { gap: 0.25rem; }
+      .toolbar button { padding-right: 0.58rem; padding-left: 0.58rem; }
+      .toolbar #btn-motion { min-width: 4.4rem; padding-right: 0.58rem; padding-left: 0.58rem; }
+      #theme-label, #preset-label, #present-label { display: none; }
+      .guided-view-handoff { max-width: 6.5rem; }
+    }
+
+    /* ==========================================================
+       SVG SEMANTIC CLASSES — use these instead of inline fill/stroke
+       ========================================================== */
+    .c-grid       { stroke: var(--grid); fill: none; }
+    .c-mask       { fill: var(--mask); stroke: none; }
+
+    .c-frontend   { fill: var(--frontend-fill);   stroke: var(--frontend-stroke); }
+    .c-backend    { fill: var(--backend-fill);    stroke: var(--backend-stroke); }
+    .c-database   { fill: var(--database-fill);   stroke: var(--database-stroke); }
+    .c-cloud      { fill: var(--cloud-fill);      stroke: var(--cloud-stroke); }
+    .c-security   { fill: var(--security-fill);   stroke: var(--security-stroke); }
+    .c-messagebus { fill: var(--messagebus-fill); stroke: var(--messagebus-stroke); }
+    .c-external   { fill: var(--external-fill);   stroke: var(--external-stroke); }
+
+    /* Text helpers */
+    .t-primary { fill: var(--text); }
+    .t-muted   { fill: var(--text-muted); }
+    .t-dim     { fill: var(--text-dim); }
+    .t-frontend   { fill: var(--frontend-stroke); }
+    .t-backend    { fill: var(--backend-stroke); }
+    .t-database   { fill: var(--database-stroke); }
+    .t-cloud      { fill: var(--cloud-stroke); }
+    .t-security   { fill: var(--security-stroke); }
+    .t-messagebus { fill: var(--messagebus-stroke); }
+    .t-external   { fill: var(--external-stroke); }
+
+    /* Semantic Sigils are small authored role stamps, not icons from a brand
+       pack and not viewer controls. Prefix selectors with svg so the canonical
+       export's SVG-only stylesheet collector keeps them automatically. */
+    svg .semantic-sigil {
+      fill: none;
+      stroke: currentColor;
+      stroke-width: 1.35;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+      opacity: 0.76;
+      pointer-events: none;
+    }
+    svg .semantic-sigil > * { vector-effect: non-scaling-stroke; }
+    svg .semantic-sigil .sigil-fill { fill: currentColor; stroke: none; }
+    svg .s-frontend   { color: var(--frontend-stroke); }
+    svg .s-backend    { color: var(--backend-stroke); }
+    svg .s-database   { color: var(--database-stroke); }
+    svg .s-cloud      { color: var(--cloud-stroke); }
+    svg .s-security   { color: var(--security-stroke); }
+    svg .s-messagebus { color: var(--messagebus-stroke); }
+    svg .s-external   { color: var(--external-stroke); }
+
+    /* Brand Marks are authored identity badges. Their color is contained
+       inside one neutral plate so vendor color never replaces Archify's
+       semantic node and relationship vocabulary. */
+    svg .brand-mark { pointer-events: none; }
+    svg .brand-mark-badge { fill: #fff; stroke: none; }
+    svg .brand-mark-frame {
+      fill: none;
+      stroke: #cbd5e1;
+      stroke-width: 0.8;
+      vector-effect: non-scaling-stroke;
+    }
+    svg .brand-mark-fallback {
+      fill: none;
+      stroke: #475569;
+      stroke-width: 1.15;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+    }
+    svg[data-preset="blueprint"] .brand-mark-badge,
+    svg[data-preset="blueprint"] .brand-mark-frame { rx: 1px; }
+
+    /* Reading Depth is a viewer-only level-of-detail layer. MAP preserves the
+       authored structure and primary labels, READ restores relationship labels
+       and node context, and FULL restores tags and fine annotations. Semantic
+       intent can reveal the relevant detail without moving any geometry. */
+    svg [data-detail] { transition: opacity 160ms ease; }
+    svg [data-detail-anchor] {
+      transform-box: fill-box;
+      transform-origin: center;
+      transition: transform 160ms ease;
+    }
+    .diagram-container[data-detail-level="map"] svg [data-detail="context"],
+    .diagram-container[data-detail-level="map"] svg [data-detail="fine"],
+    .diagram-container[data-detail-level="read"] svg [data-detail="fine"] {
+      opacity: 0;
+      pointer-events: none;
+    }
+    .diagram-container[data-detail-level="map"] svg [data-detail-anchor] {
+      transform: translateY(8px);
+    }
+
+    /* Focus, lens, preview, route, and story states are stronger reader intent than
+       the global zoom level. Reveal only their exact semantic matches. */
+    svg[data-focus-active] [data-focus-match][data-detail],
+    svg[data-focus-active] [data-focus-match] [data-detail],
+    svg[data-reach-active] [data-reach-match][data-detail],
+    svg[data-reach-active] [data-reach-match] [data-detail],
+    svg[data-lens-active] [data-lens-match][data-detail],
+    svg[data-lens-active] [data-lens-match] [data-detail],
+    svg[data-legend-preview-active] [data-legend-preview-match][data-detail],
+    svg[data-legend-preview-active] [data-legend-preview-match] [data-detail],
+    svg[data-intent-trace-active] [data-intent-trace-match][data-detail],
+    svg[data-intent-trace-active] [data-intent-trace-match] [data-detail],
+    svg[data-route-active] [data-route-match][data-detail],
+    svg[data-route-active] [data-route-match] [data-detail],
+    svg[data-story-active] [data-story-step][data-detail],
+    svg[data-story-active] [data-story-step] [data-detail],
+    svg[data-relationship-preview-active] [data-relationship-preview][data-detail],
+    svg[data-relationship-preview-active] [data-relationship-preview] [data-detail],
+    svg [data-node-id]:hover [data-detail],
+    svg [data-node-id]:focus-visible [data-detail] {
+      opacity: 1;
+      pointer-events: auto;
+    }
+    svg[data-focus-active] [data-focus-match] [data-detail-anchor],
+    svg[data-reach-active] [data-reach-match] [data-detail-anchor],
+    svg[data-lens-active] [data-lens-match] [data-detail-anchor],
+    svg[data-legend-preview-active] [data-legend-preview-match] [data-detail-anchor],
+    svg[data-intent-trace-active] [data-intent-trace-match] [data-detail-anchor],
+    svg[data-route-active] [data-route-match] [data-detail-anchor],
+    svg[data-story-active] [data-story-step] [data-detail-anchor],
+    svg [data-node-id]:hover [data-detail-anchor],
+    svg [data-node-id]:focus-visible [data-detail-anchor] { transform: none; }
+
+    /* Arrows */
+    .a-default   { stroke: var(--arrow); fill: none; }
+    .a-emphasis  { stroke: var(--arrow-emphasis); fill: none; }
+    .a-security  { stroke: var(--security-stroke); fill: none; stroke-dasharray: 5,5; }
+    .a-dashed    { stroke: var(--database-stroke); fill: none; stroke-dasharray: 4,4; }
+
+    /* Arrowhead markers reference these */
+    .m-default   { fill: var(--arrow); }
+    .m-emphasis  { fill: var(--arrow-emphasis); }
+    .m-security  { fill: var(--security-stroke); }
+    .m-dashed    { fill: var(--database-stroke); }
+
+    /* Stable semantic exploration hooks emitted by every renderer. */
+    svg [data-node-id] {
+      cursor: pointer;
+      transition: opacity 0.18s ease, filter 0.18s ease;
+    }
+    svg [data-edge-from] { transition: opacity 0.18s ease, filter 0.18s ease; }
+    svg [data-node-id]:hover,
+    svg [data-node-id]:focus-visible {
+      filter: drop-shadow(0 0 7px var(--frontend-stroke));
+      outline: none;
+    }
+    /* Verified Source Beacons are installed at runtime only for nodes whose
+       repository evidence passed the local revision/blob/line checks. They
+       live inside the owning node so every focus, route, story, and guided
+       view keeps one coherent opacity state. Export serialization removes
+       them before producing the canonical SVG or any derived visual. */
+    .source-evidence-beacon {
+      pointer-events: none;
+      opacity: 0.76;
+      transition: opacity 160ms ease, filter 160ms ease;
+    }
+    .source-evidence-beacon rect {
+      fill: color-mix(in srgb, var(--mask) 92%, var(--backend-stroke));
+      stroke: color-mix(in srgb, var(--backend-stroke) 82%, var(--panel-border));
+      stroke-width: 1;
+      vector-effect: non-scaling-stroke;
+    }
+    .source-evidence-beacon text {
+      fill: var(--backend-stroke);
+      font-size: 5.5px;
+      font-weight: 800;
+      letter-spacing: 0.06em;
+      text-anchor: middle;
+      text-transform: uppercase;
+    }
+    svg [data-node-id]:hover .source-evidence-beacon,
+    svg [data-node-id]:focus-visible .source-evidence-beacon,
+    svg [data-node-id][data-focus-selected] .source-evidence-beacon {
+      opacity: 1;
+      filter: drop-shadow(0 0 4px color-mix(in srgb, var(--backend-stroke) 72%, transparent));
+    }
+    svg[data-preset="signal-flow"] .source-evidence-beacon { opacity: 0.9; }
+    svg[data-preset="blueprint"] .source-evidence-beacon rect {
+      rx: 0.8px;
+      filter: none;
+    }
+    svg [data-legend-kind][role="button"] { cursor: pointer; }
+    svg [data-legend-kind]:focus { outline: none; }
+    svg [data-legend-hit] {
+      fill: transparent;
+      stroke: transparent;
+      stroke-width: 1.4;
+      pointer-events: all;
+      vector-effect: non-scaling-stroke;
+      transition: stroke 150ms ease, stroke-width 150ms ease, filter 150ms ease;
+    }
+    svg [data-legend-count-badge] { pointer-events: none; }
+    svg [data-legend-count-badge] rect {
+      fill: var(--mask);
+      stroke: var(--panel-border);
+      stroke-width: 1;
+      vector-effect: non-scaling-stroke;
+    }
+    svg [data-legend-count-badge] text {
+      fill: var(--text-muted);
+      font-size: 8px;
+      font-weight: 700;
+      text-anchor: middle;
+    }
+    svg [data-legend-kind][role="button"]:hover [data-legend-hit] {
+      stroke: color-mix(in srgb, var(--database-stroke) 58%, transparent);
+    }
+    svg [data-legend-kind][role="button"]:focus-visible [data-legend-hit] {
+      stroke: var(--frontend-stroke);
+      stroke-width: 1.8;
+      filter: drop-shadow(0 0 3px var(--frontend-stroke));
+    }
+    svg [data-legend-kind][data-legend-selected] [data-legend-hit] {
+      stroke: var(--database-stroke);
+      stroke-width: 2.2;
+      stroke-dasharray: 3 2;
+    }
+    svg [data-legend-kind][data-legend-selected] [data-legend-count-badge] rect {
+      stroke: var(--database-stroke);
+      stroke-width: 1.8;
+    }
+    svg [data-legend-kind][data-legend-zero] { opacity: 0.44; }
+    svg[data-preset="signal-flow"] [data-legend-kind][data-legend-selected] [data-legend-hit] {
+      filter: drop-shadow(0 0 4px var(--database-stroke));
+    }
+    svg[data-preset="blueprint"] [data-legend-hit],
+    svg[data-preset="blueprint"] [data-legend-count-badge] rect { rx: 0; filter: none; }
+    svg[data-legend-preview-active] [data-node-id],
+    svg[data-legend-preview-active] [data-edge-from] { opacity: 0.11; }
+    svg[data-legend-preview-active] [data-legend-preview-match] { opacity: 1; }
+    svg[data-legend-preview-active] [data-legend-preview-peer] { opacity: 0.62; }
+    svg[data-legend-preview-active] [data-legend-preview-selected] {
+      filter: drop-shadow(0 0 8px var(--database-stroke));
+    }
+    svg[data-lens-active] [data-node-id],
+    svg[data-lens-active] [data-edge-from] { opacity: 0.11; }
+    svg[data-lens-active] [data-lens-match] { opacity: 1; }
+    svg[data-lens-active] [data-lens-peer] { opacity: 0.62; }
+    svg[data-lens-active] [data-lens-selected] {
+      filter: drop-shadow(0 0 10px var(--database-stroke));
+    }
+    .semantic-lens-overlay { pointer-events: none; }
+    .semantic-lens-flow {
+      fill: none;
+      stroke-width: 3.05;
+      stroke-linecap: round;
+      stroke-dasharray: 0.075 0.925;
+      stroke-dashoffset: 0;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.9;
+      animation: archify-semantic-lens-flow 1.35s linear 1 both;
+      animation-delay: var(--lens-flow-delay, 0s);
+    }
+    .semantic-lens-flow[data-direction="out"],
+    .semantic-lens-flow[data-direction="forward"] {
+      stroke: var(--frontend-stroke);
+      filter: drop-shadow(0 0 3px var(--frontend-stroke));
+    }
+    .semantic-lens-flow[data-direction="in"],
+    .semantic-lens-flow[data-direction="reverse"] {
+      stroke: var(--database-stroke);
+      filter: drop-shadow(0 0 3px var(--database-stroke));
+    }
+    .semantic-lens-flow[data-direction="within"] {
+      stroke: var(--messagebus-stroke);
+      filter: drop-shadow(0 0 3px var(--messagebus-stroke));
+    }
+    svg[data-preset="signal-flow"] .semantic-lens-flow {
+      stroke-width: 3.7;
+      opacity: 1;
+    }
+    svg[data-preset="signal-flow"] .semantic-lens-flow[data-direction="out"],
+    svg[data-preset="signal-flow"] .semantic-lens-flow[data-direction="forward"] {
+      filter: drop-shadow(0 0 6px var(--frontend-stroke));
+    }
+    svg[data-preset="signal-flow"] .semantic-lens-flow[data-direction="in"],
+    svg[data-preset="signal-flow"] .semantic-lens-flow[data-direction="reverse"] {
+      filter: drop-shadow(0 0 6px var(--database-stroke));
+    }
+    svg[data-preset="signal-flow"] .semantic-lens-flow[data-direction="within"] {
+      filter: drop-shadow(0 0 6px var(--messagebus-stroke));
+    }
+    svg[data-preset="blueprint"] .semantic-lens-flow {
+      stroke-width: 2.45;
+      stroke-linecap: square;
+      filter: none;
+      opacity: 0.78;
+    }
+    html[data-embed="true"] .semantic-lens-overlay { display: none; }
+    svg[data-focus-active] [data-node-id],
+    svg[data-focus-active] [data-edge-from] { opacity: 0.13; }
+    svg[data-focus-active] [data-focus-match] { opacity: 1; }
+    svg[data-focus-active] [data-focus-selected] {
+      filter: drop-shadow(0 0 10px var(--frontend-stroke));
+    }
+
+    /* Authored Reachability is a bounded graph query over the relationships
+       already present in the artifact. Upstream walks incoming edges;
+       downstream walks outgoing edges. It never claims runtime causality and
+       changes only viewer emphasis, not canonical geometry or export bytes. */
+    svg[data-reach-active] [data-node-id],
+    svg[data-reach-active] [data-edge-from] { opacity: 0.09; }
+    svg[data-reach-active] [data-reach-match] { opacity: 1; }
+    svg[data-reach-active="upstream"] [data-reach-origin] {
+      filter: drop-shadow(0 0 11px var(--database-stroke));
+    }
+    svg[data-reach-active="downstream"] [data-reach-origin] {
+      filter: drop-shadow(0 0 11px var(--backend-stroke));
+    }
+    svg[data-reach-active="upstream"] [data-edge-from][data-reach-match] {
+      filter: drop-shadow(0 0 4px color-mix(in srgb, var(--database-stroke) 72%, transparent));
+    }
+    svg[data-reach-active="downstream"] [data-edge-from][data-reach-match] {
+      filter: drop-shadow(0 0 4px color-mix(in srgb, var(--backend-stroke) 72%, transparent));
+    }
+    svg[data-preset="blueprint"][data-reach-active] [data-reach-origin],
+    svg[data-preset="blueprint"][data-reach-active] [data-edge-from][data-reach-match] {
+      filter: none;
+    }
+
+    /* Direct Relationship Explorer makes authored paths a real input surface
+       without changing their visible stroke or canonical SVG. A transparent
+       runtime rail supplies forgiving pointer geometry; the exact authored
+       path and endpoints continue to carry every visible state. */
+    .relationship-hit-overlay { pointer-events: none; }
+    .relationship-hit-target { outline: none; }
+    .relationship-hit-rail {
+      fill: none;
+      stroke: transparent;
+      stroke-width: 24;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+      vector-effect: non-scaling-stroke;
+      pointer-events: stroke;
+      cursor: pointer;
+    }
+    .relationship-focus-rail {
+      fill: none;
+      stroke: color-mix(in srgb, var(--frontend-stroke) 34%, transparent);
+      stroke-width: 6;
+      stroke-dasharray: 2 4;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+      vector-effect: non-scaling-stroke;
+      pointer-events: none;
+      opacity: 0;
+    }
+    .relationship-hit-target:focus-visible .relationship-focus-rail {
+      opacity: 1;
+    }
+    svg[data-preset="blueprint"] .relationship-hit-target:focus-visible .relationship-focus-rail {
+      stroke-linecap: square;
+      filter: none;
+    }
+    svg[data-relationship-direct-active] [data-node-id],
+    svg[data-relationship-direct-active] [data-edge-from] { opacity: 0.16; }
+    svg[data-relationship-direct-active] [data-relationship-preview],
+    svg[data-relationship-direct-active] [data-relationship-preview-node] { opacity: 1; }
+    svg[data-focus-active]:not([data-relationship-pin-active]) .relationship-hit-rail,
+    svg[data-story-active] .relationship-hit-rail,
+    svg[data-route-picking] .relationship-hit-rail,
+    svg[data-route-active] .relationship-hit-rail,
+    svg[data-lens-active] .relationship-hit-rail,
+    svg[data-chapter-preview] .relationship-hit-rail { pointer-events: none; }
+    html[data-embed="true"] .relationship-hit-overlay { display: none; }
+    @media (hover: none), (pointer: coarse) {
+      .relationship-hit-rail { stroke-width: 24; }
+    }
+
+    /* Relationship Preview is temporary exploration state layered on top of
+       neighborhood focus. It changes emphasis only; exported geometry and the
+       relationship's original solid/dashed visual language stay untouched. */
+    svg[data-relationship-preview-active] [data-focus-match] { opacity: 0.18; }
+    svg[data-relationship-preview-active] [data-relationship-preview],
+    svg[data-relationship-preview-active] [data-relationship-preview-node] { opacity: 1; }
+    svg[data-relationship-preview-active] [data-relationship-preview] {
+      filter: drop-shadow(0 0 5px var(--arrow-emphasis));
+    }
+    svg[data-relationship-preview-active] [data-relationship-preview] path,
+    svg[data-relationship-preview-active] path[data-relationship-preview],
+    svg[data-relationship-preview-active] [data-relationship-preview] line,
+    svg[data-relationship-preview-active] line[data-relationship-preview],
+    svg[data-relationship-preview-active] [data-relationship-preview] polyline,
+    svg[data-relationship-preview-active] polyline[data-relationship-preview] {
+      stroke-width: 2.75;
+    }
+    svg[data-relationship-preview-active] [data-relationship-preview-source] {
+      filter: drop-shadow(0 0 7px var(--frontend-stroke));
+    }
+    svg[data-relationship-preview-active] [data-relationship-preview-target] {
+      filter: drop-shadow(0 0 7px var(--database-stroke));
+    }
+    .relationship-pulse-overlay { pointer-events: none; }
+    .relationship-flow-pulse {
+      fill: none;
+      stroke: var(--arrow-emphasis);
+      stroke-width: 3.35;
+      stroke-linecap: round;
+      stroke-dasharray: 0.085 0.915;
+      stroke-dashoffset: 0;
+      vector-effect: non-scaling-stroke;
+      opacity: 0;
+      filter: drop-shadow(0 0 4px var(--arrow-emphasis));
+      animation: archify-relationship-pulse 1.2s linear 1 both;
+    }
+    svg[data-preset="signal-flow"] .relationship-flow-pulse {
+      stroke: var(--frontend-stroke);
+      stroke-width: 3.85;
+      filter: drop-shadow(0 0 7px var(--frontend-stroke));
+    }
+    svg[data-preset="blueprint"] .relationship-flow-pulse {
+      stroke-width: 2.5;
+      stroke-linecap: square;
+      filter: none;
+    }
+    svg[data-preset="editorial"] .relationship-flow-pulse {
+      stroke: var(--arrow-emphasis);
+      stroke-width: 2.75;
+      filter: none;
+    }
+    .semantic-flow-token {
+      color: var(--frontend-stroke);
+      opacity: 0;
+      pointer-events: none;
+    }
+    .relationship-flow-token {
+      animation: archify-relationship-token-life 1.2s linear 1 both;
+    }
+    .story-flow-token {
+      animation: archify-relationship-token-life 0.78s linear 1 both;
+    }
+    .semantic-flow-token-halo {
+      fill: var(--mask);
+      stroke: currentColor;
+      stroke-width: 1.1;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.96;
+    }
+    .relationship-flow-token-shape {
+      fill: var(--mask);
+      stroke: currentColor;
+      stroke-width: 1.35;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+      vector-effect: non-scaling-stroke;
+    }
+    .relationship-flow-token-ink {
+      fill: none;
+      stroke: currentColor;
+      stroke-width: 1.05;
+      stroke-linecap: round;
+      vector-effect: non-scaling-stroke;
+    }
+    .relationship-flow-token-dot { fill: currentColor; stroke: none; }
+    .semantic-flow-token[data-token-kind="data"] { color: var(--database-stroke); }
+    .semantic-flow-token[data-token-kind="event"] { color: var(--messagebus-stroke); }
+    .semantic-flow-token[data-token-kind="security"] { color: var(--security-stroke); }
+    .semantic-flow-token[data-token-kind="state"] { color: var(--cloud-stroke); }
+    svg[data-preset="signal-flow"] .semantic-flow-token {
+      filter: drop-shadow(0 0 5px currentColor);
+    }
+    svg[data-preset="blueprint"] .semantic-flow-token { filter: none; }
+    svg[data-preset="editorial"] .semantic-flow-token { filter: none; }
+    html[data-embed="true"] .relationship-pulse-overlay { display: none; }
+
+    /* Intent Trace is a temporary, pre-click exploration layer. Related
+       topology stays readable while a short viewer-only signal runs over
+       cloned edge geometry; the authored edge remains untouched underneath. */
+    svg[data-intent-trace-active] [data-node-id],
+    svg[data-intent-trace-active] [data-edge-from] { opacity: 0.2; }
+    svg[data-intent-trace-active] [data-intent-trace-match] { opacity: 1; }
+    svg[data-intent-trace-active] [data-intent-trace-selected] {
+      filter: drop-shadow(0 0 10px var(--frontend-stroke));
+    }
+    .intent-trace-overlay { pointer-events: none; }
+    .intent-trace-flow {
+      fill: none;
+      stroke-width: 3.1;
+      stroke-linecap: round;
+      stroke-dasharray: 0.1 0.9;
+      stroke-dashoffset: 0;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.94;
+      animation: archify-intent-trace-flow 1.15s linear 1 both;
+    }
+    /* Direction names describe each edge relative to the focused node only.
+       The cloned geometry already runs from the authored source to target, so
+       incoming and outgoing signals must share the same playback direction. */
+    .intent-trace-flow[data-direction="out"] {
+      stroke: var(--frontend-stroke);
+      filter: drop-shadow(0 0 4px var(--frontend-stroke));
+    }
+    .intent-trace-flow[data-direction="in"] {
+      stroke: var(--database-stroke);
+      filter: drop-shadow(0 0 4px var(--database-stroke));
+      animation-direction: normal;
+    }
+    .intent-trace-flow[data-direction="loop"] {
+      stroke: var(--security-stroke);
+      filter: drop-shadow(0 0 4px var(--security-stroke));
+    }
+    svg[data-preset="blueprint"] [data-intent-trace-selected],
+    svg[data-preset="blueprint"] .intent-trace-flow {
+      filter: none;
+      stroke-linecap: square;
+    }
+    svg[data-preset="editorial"] [data-intent-trace-selected],
+    svg[data-preset="editorial"] .intent-trace-flow { filter: none; }
+    .intent-trace-status {
+      position: absolute;
+      width: 1px;
+      height: 1px;
+      padding: 0;
+      margin: -1px;
+      overflow: hidden;
+      clip: rect(0, 0, 0, 0);
+      clip-path: inset(50%);
+      white-space: nowrap;
+      border: 0;
+    }
+
+    /* Route Probe separates a durable two-point query from selection and
+       one-hop hover. Only the chosen shortest directed path stays prominent;
+       the traveling signal is cloned viewer geometry and never authored SVG. */
+    svg[data-route-picking="target"] [data-node-id] { opacity: 0.24; }
+    svg[data-route-picking="target"] [data-route-candidate],
+    svg[data-route-picking="target"] [data-route-start] { opacity: 1; }
+    svg[data-route-picking] [data-node-id] { cursor: crosshair; }
+    svg[data-route-picking] [data-route-start] {
+      filter: drop-shadow(0 0 10px var(--frontend-stroke));
+    }
+    svg[data-route-active] [data-node-id],
+    svg[data-route-active] [data-edge-from] { opacity: 0.11; }
+    svg[data-route-active] [data-route-match] { opacity: 1; }
+    svg[data-route-active] [data-route-start] {
+      filter: drop-shadow(0 0 11px var(--frontend-stroke));
+    }
+    svg[data-route-active] [data-route-end] {
+      filter: drop-shadow(0 0 11px var(--security-stroke));
+    }
+    svg[data-route-active] [data-route-step]:not([data-route-start]):not([data-route-end]) {
+      filter: drop-shadow(0 0 7px var(--backend-stroke));
+    }
+    svg[data-route-journey] [data-route-match][data-route-journey-state="past"] { opacity: 0.62; }
+    svg[data-route-journey] [data-route-match][data-route-journey-state="future"] { opacity: 0.34; }
+    svg[data-route-journey] [data-route-match][data-route-journey-state="current"] { opacity: 1; }
+    svg[data-route-journey] [data-node-id][data-route-journey-current] {
+      filter: drop-shadow(0 0 10px var(--backend-stroke));
+    }
+    svg[data-route-journey] [data-edge-from][data-route-journey-current] {
+      opacity: 1;
+      filter: drop-shadow(0 0 6px var(--backend-stroke));
+    }
+    .route-probe-overlay { pointer-events: none; }
+    .route-journey-overlay { pointer-events: none; }
+    .route-probe-flow {
+      fill: none;
+      stroke: var(--backend-stroke);
+      stroke-width: 3.25;
+      stroke-linecap: round;
+      stroke-dasharray: 0.085 0.915;
+      stroke-dashoffset: 0;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.96;
+      filter: drop-shadow(0 0 5px var(--backend-stroke));
+      animation: archify-route-probe-flow 1.1s cubic-bezier(0.22, 1, 0.36, 1) 1 both;
+      animation-delay: calc(var(--route-step, 0) * 0.16s);
+    }
+    .route-journey-flow {
+      fill: none;
+      stroke: var(--backend-stroke);
+      stroke-width: 3.5;
+      stroke-linecap: round;
+      stroke-dasharray: 0.1 0.9;
+      stroke-dashoffset: 0;
+      vector-effect: non-scaling-stroke;
+      opacity: 0;
+      filter: drop-shadow(0 0 6px var(--backend-stroke));
+      animation: archify-route-journey-flow 780ms cubic-bezier(0.22, 1, 0.36, 1) 1 both;
+    }
+    svg[data-preset="blueprint"] [data-route-start],
+    svg[data-preset="blueprint"] [data-route-end],
+    svg[data-preset="blueprint"] [data-route-step],
+    svg[data-preset="blueprint"] .route-probe-flow {
+      filter: none;
+      stroke-linecap: square;
+    }
+    svg[data-preset="blueprint"] .route-journey-flow {
+      filter: none;
+      stroke-linecap: square;
+    }
+    svg[data-preset="editorial"] [data-route-start],
+    svg[data-preset="editorial"] [data-route-end],
+    svg[data-preset="editorial"] [data-route-step],
+    svg[data-preset="editorial"] .route-probe-flow,
+    svg[data-preset="editorial"] .route-journey-flow { filter: none; }
+
+    svg[data-preset="editorial"] .c-grid {
+      stroke-dasharray: 1 4;
+      opacity: 0.48;
+    }
+    svg[data-preset="editorial"] .c-region {
+      fill: color-mix(in srgb, var(--cloud-fill) 48%, transparent);
+      stroke-dasharray: 9 4;
+    }
+    svg[data-preset="editorial"] [data-node-id]:hover,
+    svg[data-preset="editorial"] [data-node-id]:focus-visible,
+    svg[data-preset="editorial"][data-focus-active] [data-focus-selected] {
+      filter: drop-shadow(0 2px 2px color-mix(in srgb, var(--text) 18%, transparent));
+    }
+
+    svg[data-preset="blueprint"] .c-grid {
+      stroke-dasharray: 1 3;
+      opacity: 0.78;
+    }
+    svg[data-preset="blueprint"] .c-region {
+      fill: color-mix(in srgb, var(--cloud-fill) 58%, transparent);
+      stroke-dasharray: 12 4 2 4;
+    }
+    svg[data-preset="blueprint"] .c-security-group,
+    svg[data-preset="blueprint"] .c-lane { stroke-dasharray: 7 3; }
+    svg[data-preset="blueprint"] [data-node-id]:hover,
+    svg[data-preset="blueprint"] [data-node-id]:focus-visible {
+      filter: drop-shadow(0 0 3px var(--frontend-stroke));
+    }
+    svg[data-preset="blueprint"][data-focus-active] [data-focus-selected] {
+      filter: drop-shadow(0 0 3px var(--frontend-stroke));
+    }
+    svg[data-preset="blueprint"][data-focus-active][data-reach-active] [data-focus-selected][data-reach-origin] {
+      filter: none;
+    }
+    svg[data-preset="blueprint"][data-relationship-preview-active] [data-relationship-preview],
+    svg[data-preset="blueprint"][data-relationship-preview-active] [data-relationship-preview-source],
+    svg[data-preset="blueprint"][data-relationship-preview-active] [data-relationship-preview-target] {
+      filter: drop-shadow(0 0 3px var(--frontend-stroke));
+    }
+
+    /* Story Trail is a viewer-only overlay derived from the ordered focus IDs
+       of the active guided view. The authored edge stays underneath with its
+       original color, dash pattern, marker, and geometry intact. */
+    .story-trail-overlay { pointer-events: none; }
+    .story-carrier-overlay { pointer-events: none; }
+    .story-trail-flow {
+      fill: none;
+      stroke: var(--frontend-stroke);
+      stroke-width: 2.8;
+      stroke-linecap: round;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.34;
+      filter: drop-shadow(0 0 2px var(--frontend-stroke));
+    }
+    svg[data-story-beat] [data-story-step] {
+      opacity: 0.22;
+      filter: saturate(0.42);
+      transition: opacity 180ms ease, filter 180ms ease;
+    }
+    svg[data-story-beat] [data-story-step][data-story-beat-state="past"] {
+      opacity: 0.72;
+      filter: saturate(0.82);
+    }
+    svg[data-story-beat] [data-story-step][data-story-beat-state="next"] {
+      opacity: 0.5;
+      filter: saturate(0.66);
+    }
+    svg[data-story-beat] [data-story-step][data-story-beat-state="active"] {
+      opacity: 1;
+      filter: drop-shadow(0 0 7px var(--frontend-stroke));
+      animation: archify-story-beat-node 360ms cubic-bezier(0.22, 1, 0.36, 1) both;
+    }
+    svg[data-story-beat] [data-edge-from][data-story-beat-step] {
+      opacity: 0.16;
+      transition: opacity 160ms ease;
+    }
+    svg[data-story-beat] [data-edge-from][data-story-beat-step][data-story-beat-state="past"] { opacity: 0.58; }
+    svg[data-story-beat] [data-edge-from][data-story-beat-step][data-story-beat-state="next"] { opacity: 0.34; }
+    svg[data-story-beat] [data-edge-from][data-story-beat-step][data-story-beat-state="active"] { opacity: 1; }
+    svg[data-story-beat] .story-trail-flow { opacity: 0; transition: opacity 160ms ease; }
+    svg[data-story-beat] .story-trail-flow[data-story-beat-state="past"] { opacity: 0.34; }
+    svg[data-story-beat] .story-trail-flow[data-story-beat-state="next"] { opacity: 0.2; }
+    svg[data-story-beat] .story-trail-flow[data-story-beat-state="active"] { opacity: 0.92; }
+    svg[data-story-beat] .story-trail-flow[data-story-pulse="true"] {
+      stroke-dasharray: 2 13;
+      stroke-dashoffset: 30;
+      opacity: 0.92;
+      animation: archify-story-flow 0.78s linear 1 both;
+    }
+    svg[data-preset="blueprint"] .story-trail-flow {
+      stroke-linecap: square;
+      filter: none;
+      opacity: 0.5;
+    }
+    svg[data-preset="blueprint"][data-story-beat] [data-story-step][data-story-beat-state="active"] {
+      filter: none;
+      animation: none;
+    }
+    svg[data-preset="editorial"] .story-trail-flow { filter: none; }
+    svg[data-preset="editorial"][data-story-beat] [data-story-step][data-story-beat-state="active"] {
+      filter: drop-shadow(0 2px 2px color-mix(in srgb, var(--text) 16%, transparent));
+    }
+
+    /* Chapter Delta Preview is a static, pre-commit comparison between two
+       chapter focus sets. Symbols in the rail carry the meaning without color;
+       these SVG rules only make exact stable-ID membership easier to scan. */
+    svg[data-chapter-preview] [data-node-id],
+    svg[data-chapter-preview] [data-edge-from] {
+      opacity: 0.1 !important;
+      filter: none !important;
+      transition: none !important;
+    }
+    svg[data-chapter-preview] .story-trail-overlay { opacity: 0.08 !important; }
+    svg[data-chapter-preview] [data-node-id][data-chapter-preview-role="stay"] {
+      opacity: 0.76 !important;
+      filter: saturate(0.7) !important;
+    }
+    svg[data-chapter-preview] [data-node-id][data-chapter-preview-role="enter"] {
+      opacity: 1 !important;
+      filter: saturate(1.2) !important;
+    }
+    svg[data-chapter-preview] [data-node-id][data-chapter-preview-role="leave"] {
+      opacity: 0.28 !important;
+      filter: grayscale(0.72) !important;
+    }
+    svg[data-preset="blueprint"][data-chapter-preview] [data-node-id] { filter: none !important; }
+
+    /* Dashed boundary variants */
+    .c-security-group { fill: transparent; stroke: var(--security-stroke); stroke-dasharray: 4,4; }
+    .c-region         { fill: rgba(251, 191, 36, 0.05); stroke: var(--cloud-stroke); stroke-dasharray: 8,4; }
+    .c-lane           { fill: var(--lane-fill); stroke: var(--lane-stroke); stroke-dasharray: 6,6; }
+
+    /* Optional trace animation, enabled only by meta.animation = "trace".
+       The ordinary viewer performs one ambient pass and then restores the
+       authored solid/security/async line language. WebM samples the same
+       authored geometry into an explicit canvas timeline. */
+    html[data-ambient-motion="running"] svg[data-animation="trace"] [data-animate="edge"] {
+      animation: archify-edge-flow 2.4s linear 1;
+      animation-delay: calc(var(--step, 0) * 160ms);
+    }
+    html[data-ambient-motion="running"] svg[data-animation="trace"] [data-animate="node"] {
+      transform-box: fill-box;
+      transform-origin: center;
+      animation: archify-node-pulse 3.6s ease-in-out 1;
+      animation-delay: calc(var(--step, 0) * 160ms);
+    }
+    svg[data-preset="signal-flow"][data-animation="trace"] [data-animate="edge"] {
+      stroke-linecap: round;
+      filter: drop-shadow(0 0 3px var(--arrow-emphasis));
+      animation-duration: 1.75s;
+    }
+    svg[data-preset="signal-flow"][data-animation="trace"] [data-animate="node"] {
+      animation-duration: 3.1s;
+    }
+    svg[data-preset="blueprint"][data-animation="trace"] [data-animate="edge"] {
+      stroke-linecap: square;
+      filter: none;
+      animation-duration: 2.15s;
+    }
+    svg[data-preset="blueprint"][data-animation="trace"] [data-animate="node"] {
+      animation-name: archify-blueprint-node-pulse;
+      animation-duration: 3.8s;
+    }
+    svg[data-preset="editorial"][data-animation="trace"] [data-animate="edge"] {
+      filter: none;
+      animation-duration: 2.2s;
+    }
+    svg[data-preset="editorial"][data-animation="trace"] [data-animate="node"] {
+      animation-name: archify-editorial-node-pulse;
+      animation-duration: 3.5s;
+    }
+    /* Embedded proofs are static until a named Story Trail chapter is played.
+       This keeps proof grids calm and ensures ?play=1 stops all viewer motion
+       after one 3.2 second chapter instead of leaving ambient trace loops on. */
+    html[data-embed="true"] svg[data-animation="trace"] [data-animate],
+    html[data-share-playback="true"] svg[data-animation="trace"] [data-animate] {
+      animation: none !important;
+      stroke-dashoffset: 0;
+    }
+    @keyframes archify-edge-flow {
+      0% { stroke-dasharray: 10 8; stroke-dashoffset: 54; opacity: 0.42; }
+      88% { stroke-dasharray: 10 8; stroke-dashoffset: 0; opacity: 1; }
+      99.9% { stroke-dasharray: 10 8; stroke-dashoffset: 0; opacity: 1; }
+      100% { stroke-dashoffset: 0; opacity: 1; }
+    }
+    @keyframes archify-node-pulse {
+      0%, 72%, 100% { filter: none; stroke-width: 1.5; }
+      18%, 36% {
+        filter: drop-shadow(0 0 8px var(--arrow-emphasis));
+        stroke-width: 2.4;
+      }
+    }
+    @keyframes archify-blueprint-node-pulse {
+      0%, 72%, 100% { opacity: 1; filter: none; }
+      18%, 36% { opacity: 0.72; filter: drop-shadow(0 0 2px var(--frontend-stroke)); }
+    }
+    @keyframes archify-editorial-node-pulse {
+      0%, 72%, 100% { opacity: 1; filter: none; }
+      18%, 36% { opacity: 0.78; filter: drop-shadow(0 2px 2px color-mix(in srgb, var(--text) 18%, transparent)); }
+    }
+    @keyframes archify-signal-scan {
+      0%, 18% { opacity: 1; transform: translateX(-70%); }
+      70% { opacity: 1; transform: translateX(70%); }
+      100% { opacity: 0; transform: translateX(70%); }
+    }
+    @keyframes archify-radar-live {
+      0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--backend-stroke) 52%, transparent); }
+      55%, 100% { box-shadow: 0 0 0 0.32rem transparent; }
+    }
+    @keyframes archify-guided-progress {
+      from { transform: scaleX(var(--guided-progress-start, 0)); }
+      to { transform: scaleX(1); }
+    }
+    @keyframes archify-story-flow {
+      to { stroke-dashoffset: 0; }
+    }
+    @keyframes archify-intent-trace-flow {
+      0% { opacity: 0.28; stroke-dashoffset: 0; }
+      12%, 78% { opacity: 0.94; }
+      100% { opacity: 0; stroke-dashoffset: -1; }
+    }
+    @keyframes archify-route-probe-flow {
+      0% { stroke-dashoffset: 0; opacity: 0.96; }
+      78% { stroke-dashoffset: -1; opacity: 0.96; }
+      100% { stroke-dasharray: none; stroke-dashoffset: 0; opacity: 0.58; }
+    }
+    @keyframes archify-route-journey-flow {
+      0% { opacity: 0.16; stroke-dashoffset: 0; }
+      14%, 76% { opacity: 1; }
+      100% { opacity: 0; stroke-dashoffset: -1; }
+    }
+    @keyframes archify-semantic-lens-flow {
+      0% { opacity: 0.2; stroke-dashoffset: 0; }
+      12%, 78% { opacity: 0.9; }
+      100% { opacity: 0; stroke-dashoffset: -1; }
+    }
+    @keyframes archify-relationship-pulse {
+      0% { opacity: 0.18; stroke-dashoffset: 0; }
+      10%, 76% { opacity: 0.98; }
+      100% { opacity: 0; stroke-dashoffset: -1; }
+    }
+    @keyframes archify-relationship-token-life {
+      0%, 7% { opacity: 0; }
+      13%, 82% { opacity: 1; }
+      100% { opacity: 0; }
+    }
+    @keyframes archify-story-beat-node {
+      from { opacity: 0.48; filter: saturate(0.6); }
+      58% { opacity: 1; filter: drop-shadow(0 0 10px var(--frontend-stroke)); }
+      to { opacity: 1; filter: drop-shadow(0 0 7px var(--frontend-stroke)); }
+    }
+    @keyframes archify-share-cue-enter {
+      from { opacity: 0; transform: translate(-50%, -0.45rem); }
+      to { opacity: 1; transform: translate(-50%, 0); }
+    }
+    @keyframes archify-share-cue-pulse {
+      0%, 100% { opacity: 1; transform: scale(1); }
+      50% { opacity: 0.48; transform: scale(0.78); }
+    }
+    @media (prefers-reduced-motion: reduce) {
+      html[data-preset="signal-flow"] .diagram-container::before {
+        animation: none !important;
+      }
+      .pulse-dot { animation: none !important; }
+      svg[data-animation="trace"] [data-animate] {
+        animation: none !important;
+        stroke-dashoffset: 0;
+      }
+      .guided-view-progress span {
+        animation: none !important;
+        transform: scaleX(1) !important;
+      }
+      .story-trail-flow,
+      .intent-trace-flow,
+      .route-probe-flow,
+      .semantic-lens,
+      .diagram-guide,
+      [data-story-step],
+      .overview-map-live,
+      .guided-view-stop,
+      .share-chapter-cue,
+      .chapter-handoff-anchor,
+      .share-chapter-state::before,
+      .share-chapter-progress span { animation: none !important; }
+      .guided-view-chapter,
+      svg[data-chapter-preview] [data-node-id],
+      svg[data-chapter-preview] [data-edge-from] { transition: none !important; }
+      svg[data-story-playing="true"] .story-trail-flow {
+        stroke-dasharray: none;
+        stroke-dashoffset: 0;
+        opacity: 0.55;
+      }
+      .intent-trace-flow {
+        animation: none !important;
+        stroke-dasharray: none;
+        stroke-dashoffset: 0;
+        opacity: 0.72;
+      }
+      .route-probe-flow {
+        animation: none !important;
+        stroke-dasharray: none;
+        stroke-dashoffset: 0;
+        opacity: 0.78;
+      }
+      .route-journey-overlay,
+      .story-carrier-overlay { display: none !important; }
+      .semantic-lens-flow {
+        animation: none !important;
+        stroke-dasharray: none;
+        stroke-width: 2.2;
+        opacity: 0.34;
+        filter: none;
+      }
+      .relationship-pulse-overlay { display: none !important; }
+      .guided-view-chapter { transition: none !important; }
+      .source-evidence-beacon,
+      svg [data-node-id], svg [data-edge-from], svg [data-detail], svg [data-detail-anchor], svg [data-legend-hit], svg { transition: none !important; }
+    }
+  </style>
+</head>
+<body>
+  <!-- Toolbar: theme, live visual style, trace motion, presentation stage, and export.
+       Motion appears only for trace-enabled artifacts and has no shortcut;
+       Keyboard: T toggles theme, S cycles style, F toggles the stage, E opens export. -->
+  <div class="toolbar" role="toolbar" aria-label="图表操作">
+    <button id="btn-theme" type="button"
+            title="切换主题（T）"
+            aria-label="切换颜色主题"
+            aria-pressed="false">
+      <span id="theme-icon" class="toolbar-icon" aria-hidden="true"></span>
+      <span id="theme-label">深色</span>
+    </button>
+    <div class="preset-wrap">
+      <button id="btn-preset" type="button"
+              title="选择视觉风格（S 循环切换）"
+              aria-label="选择视觉风格"
+              aria-haspopup="menu"
+              aria-expanded="false"
+              aria-controls="preset-menu"
+              aria-keyshortcuts="S">
+        <span class="preset-control-mark" aria-hidden="true"></span>
+        <span id="preset-label">风格</span>
+        <span class="toolbar-icon toolbar-chevron" aria-hidden="true"></span>
+      </button>
+      <div class="preset-menu" id="preset-menu" role="menu" aria-label="视觉风格">
+        <div class="preset-menu-heading" role="presentation"><span>视觉表达</span><span>S 循环切换</span></div>
+        <button class="preset-option" data-preset-value="classic" type="button" role="menuitemradio" aria-checked="false" tabindex="-1">
+          <span class="preset-option-swatch classic" aria-hidden="true"></span>
+          <span class="preset-option-copy"><strong>经典</strong><small>稳定的技术默认风格</small></span>
+          <span class="preset-option-check" aria-hidden="true"></span>
+        </button>
+        <button class="preset-option" data-preset-value="signal-flow" type="button" role="menuitemradio" aria-checked="false" tabindex="-1">
+          <span class="preset-option-swatch signal-flow" aria-hidden="true"></span>
+          <span class="preset-option-copy"><strong>信号流</strong><small>突出动态流向</small></span>
+          <span class="preset-option-check" aria-hidden="true"></span>
+        </button>
+        <button class="preset-option" data-preset-value="blueprint" type="button" role="menuitemradio" aria-checked="false" tabindex="-1">
+          <span class="preset-option-swatch blueprint" aria-hidden="true"></span>
+          <span class="preset-option-copy"><strong>蓝图</strong><small>工程评审</small></span>
+          <span class="preset-option-check" aria-hidden="true"></span>
+        </button>
+        <button class="preset-option" data-preset-value="editorial" type="button" role="menuitemradio" aria-checked="false" tabindex="-1">
+          <span class="preset-option-swatch editorial" aria-hidden="true"></span>
+          <span class="preset-option-copy"><strong>编辑风格</strong><small>适合发布与上线说明</small></span>
+          <span class="preset-option-check" aria-hidden="true"></span>
+        </button>
+      </div>
+    </div>
+    <button id="btn-motion" type="button" hidden
+            title="暂停动效"
+            aria-label="暂停动效"
+            aria-pressed="true">
+      <span class="motion-control-dot" aria-hidden="true"></span>
+      <span id="motion-label">动态</span>
+    </button>
+    <button id="btn-present" type="button"
+            title="演示模式（F）"
+            aria-label="进入演示模式"
+            aria-pressed="false">
+      <span id="present-icon" class="toolbar-icon" aria-hidden="true"></span>
+      <span id="present-label">演示</span>
+    </button>
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个节点","viewer.guided.chapter.open":"打开第 {index}/{total} 章：{label}，{count} 个停靠点","viewer.guided.chapter.current":"当前第 {index}/{total} 章：{label}，{count} 个停靠点","viewer.guided.chapter.selectedNodes":"已选择 {count} 个节点","viewer.guided.chapter.stops":"{count} 个停靠点","viewer.guided.chapter.stop.one":"{count} 个停靠点","viewer.guided.chapter.stop.other":"{count} 个停靠点","viewer.guided.chapter.current.title":"{label} — 当前章节，{count} 个停靠点","viewer.guided.chapter.delta.expanded":"{stay} 个保留，{enter} 个进入，{leave} 个离开","viewer.guided.chapter.delta.aria":"打开第 {index}/{total} 章：{label}。章节聚焦差异：{delta}","viewer.guided.chapter.delta.title":"{label} — 章节聚焦 {delta}","viewer.guided.handoff":"{from} → {to} · 经由{label}","viewer.guided.share.chapter":"章节 {index} / {total}","viewer.guided.share.initial":"章节 01 / 01","viewer.guided.share.default":"引导章节","viewer.guided.state.ready":"就绪","viewer.guided.state.playing":"播放中","viewer.guided.state.settled":"已完成","viewer.guided.state.paused":"已暂停","viewer.guided.state.pinned":"已固定","viewer.guided.state.still":"静态","viewer.guided.share.step":"步骤 {index} / {total} · {label}","viewer.guided.share.staticMoment":"{step} · 静态时刻","viewer.guided.share.complete":"{count} 个步骤已完成 · {note}","viewer.guided.share.settled":"路径已稳定，可供阅读。","viewer.guided.share.staticPath":"{count} 个步骤 · 静态路径","viewer.guided.share.ready":"{count} 个步骤 · 就绪","viewer.guided.share.aria":"{state}，第 {index}/{total} 章：{label}。{beat}。{route}","viewer.guided.beat.start":"节点 {index} / {total} · {label} · 起点","viewer.guided.beat.forward":"节点 {index} / {total} · {from} → {to}","viewer.guided.beat.reverse":"节点 {index} / {total} · {from} → {to} · 反向编写连接","viewer.guided.beat.multiple":"节点 {index} / {total} · {from} ⇄ {to} · {count} 条编写连接","viewer.guided.beat.group":"节点 {index} / {total} · {from} · {to} · 分组 · 无直接连接","viewer.guided.beat.aria.prefix":"故事节点 {index}/{total}：{label}。","viewer.guided.beat.aria.start":"起点。","viewer.guided.beat.aria.forward":"从{from}经一条正向编写关系到达。","viewer.guided.beat.aria.reverse":"从{from}出发；编写关系实际由{to}指向{from}。","viewer.guided.beat.aria.multiple":"从{from}经 {count} 条编写关系到达；不使用任意动效。","viewer.guided.beat.aria.group":"与{from}分组展示，没有直接编写关系。","viewer.guided.caption.start":"起点","viewer.guided.caption.grouped":"分组过渡 · 无直接编写连接","viewer.guided.caption.more":" +另外 {count} 条","viewer.guided.caption.reverse":"反向编写关系","viewer.guided.caption.relationships":"{count} 条编写关系","viewer.guided.caption.relationship":"编写关系","viewer.guided.caption.direction":"编写方向：{from} → {to}","viewer.guided.caption.starting":"编写起点","viewer.guided.beatLink":"复制当前故事时刻链接：第 {index}/{total} 个节点：{label}","viewer.guided.noStory":"此图表没有编写引导故事。","viewer.guide.eyebrow":"图表指南","viewer.guide.close":"关闭图表指南","viewer.guide.inspecting":"正在检查已编译语义","viewer.guide.actions":"图表探索操作","viewer.guide.find":"查找任意节点","viewer.guide.find.hint":"搜索标签、职责、类型和稳定 ID。","viewer.guide.route":"追踪路径","viewer.guide.route.aria":"追踪有向路径","viewer.guide.route.hint":"查看两个语义节点如何按编写方向连接。","viewer.guide.map":"查看完整系统","viewer.guide.map.hint":"打开带实时视口和稳定节点的语义雷达。","viewer.guide.lens":"比较语义类型","viewer.guide.lens.hint":"统计角色、显示流量并比较直接编写的连接。","viewer.guide.story":"播放引导故事","viewer.guide.story.hint":"浏览已编写的章节和真实关系。","viewer.guide.present":"进入演示模式","viewer.guide.present.hint":"让实时图表占满视口，同时不改变导出。","viewer.guide.shortcuts":"其他键盘快捷键","viewer.guide.shortcut.export":"导出","viewer.guide.shortcut.theme":"主题","viewer.guide.shortcut.style":"风格","viewer.guide.shortcut.reset":"重置","viewer.guide.shortcut.zoomIn":"放大","viewer.guide.shortcut.zoomOut":"缩小","viewer.guide.shortcut.close":"关闭","viewer.guide.facts":"{nodes} · {relationships} · {views}","viewer.guide.fact.node.one":"{count} 个语义节点","viewer.guide.fact.node.other":"{count} 个语义节点","viewer.guide.fact.relationship.one":"{count} 条关系","viewer.guide.fact.relationship.other":"{count} 条关系","viewer.guide.fact.view.one":"{count} 个引导视图","viewer.guide.fact.view.other":"{count} 个引导视图","viewer.guide.story.available.one":"浏览 {count} 个已编写章节及其真实关系。","viewer.guide.story.available.other":"浏览 {count} 个已编写章节及其真实关系。","viewer.guide.story.unavailable":"此图表没有编写引导故事。","viewer.guide.open":"打开图表指南","viewer.guide.noStory":"此图表没有编写引导故事。","viewer.finder.title":"查找节点","viewer.finder.close":"关闭节点查找器","viewer.finder.placeholder":"搜索标签或 ID","viewer.finder.search":"搜索图表节点","viewer.finder.results":"图表节点","viewer.finder.empty":"没有匹配的节点","viewer.finder.result.focus":"聚焦{label}","viewer.finder.result.routeStart":"选择{label}作为路径起点","viewer.finder.result.routeTarget":"选择{label}作为路径终点，{links}","viewer.finder.status.empty":"没有匹配的节点","viewer.finder.status.count.one":"{count} 个匹配节点","viewer.finder.status.count.other":"{count} 个匹配节点","viewer.finder.noun.nodes":"个节点","viewer.finder.link.one":"{count} 条连接","viewer.finder.link.other":"{count} 条连接","viewer.finder.result.focus.one":"聚焦{label}，{count} 条相关连接","viewer.finder.result.focus.other":"聚焦{label}，{count} 条相关连接","viewer.finder.status.filtered":"{visible}/{available} {noun}","viewer.finder.status.all":"{available} {noun}","viewer.passport.eyebrow":"语义护照","viewer.passport.metadata":"节点元数据","viewer.passport.evidence":"已验证的源代码证据","viewer.passport.verified":"已验证来源","viewer.passport.reach":"编写可达范围","viewer.passport.reach.trace":"追踪编写的可达性","viewer.passport.upstream":"上游","viewer.passport.downstream":"下游","viewer.passport.upstream.trace":"追踪上游编写可达性","viewer.passport.downstream.trace":"追踪下游编写可达性","viewer.passport.close":"关闭语义护照","viewer.passport.copy":"复制链接","viewer.passport.copy.focus":"复制聚焦节点的链接","viewer.passport.relations":"关系","viewer.passport.relations.show":"显示关联关系","viewer.passport.relations.hide":"隐藏关联关系","viewer.passport.relations.list":"关联关系","viewer.passport.copyRelation":"复制关系","viewer.passport.copyNode":"复制节点","viewer.passport.copyPinned":"复制固定关系的链接","viewer.passport.copySource":"复制来源节点的链接","viewer.passport.copy.focused.success":"已复制聚焦节点链接","viewer.passport.copy.pinned.success":"已复制固定关系链接","viewer.passport.copy.focused.failed":"无法复制聚焦节点链接","viewer.passport.copy.pinned.failed":"无法复制固定关系链接","viewer.passport.relationship.none":"没有关联关系","viewer.passport.relationship.count.one":"{count} 条关系","viewer.passport.relationship.count.other":"{count} 条关系","viewer.passport.relationship.show.one":"显示 {count} 条关联关系","viewer.passport.relationship.show.other":"显示 {count} 条关联关系","viewer.passport.relationship.summary":"{out} 条出向 · {in} 条入向{loops}","viewer.passport.relationship.loops":" · {count} 条自环","viewer.passport.relationship.explorer":"直接关系浏览器","viewer.passport.relationship.help":"使用方向键浏览关系。按 Enter 或空格键固定详情；按 Escape 清除。","viewer.passport.relationship.loopsBack":"回环","viewer.passport.relationship.connectsTo":"连接到","viewer.passport.relationship.connectsFrom":"连接自","viewer.passport.relationship.pinned":"已固定关系 · {from} → {to} · {label}","viewer.passport.relationship.inspect":"检查第 {index}/{total} 条关系：{from} 到 {to}，{label}。按 Enter 查看详情。","viewer.passport.relationship.group.out":"出向","viewer.passport.relationship.group.in":"入向","viewer.passport.relationship.group.loop":"自环","viewer.passport.relationship.row":"{group}：{relationship}，{neighbor}","viewer.passport.relationship.direction.out":"出 →","viewer.passport.relationship.direction.in":"← 入","viewer.passport.relationship.direction.loop":"自环","viewer.passport.sourceCount.one":"{count} 个已验证来源引用","viewer.passport.sourceCount.other":"{count} 个已验证来源引用","viewer.passport.sourceMarker":"来源","viewer.passport.beacon.one":"{count} 个已验证来源；聚焦此节点以检查","viewer.passport.beacon.other":"{count} 个已验证来源；聚焦此节点以检查","viewer.passport.repository.open":"打开已验证的仓库修订版本 {revision}","viewer.passport.source.open":"打开修订版本 {revision} 中已验证的来源 {path}","viewer.passport.source.openLink":"打开 ↗","viewer.passport.reach.upstream.one":"追踪 {count} 个上游编写节点","viewer.passport.reach.upstream.other":"追踪 {count} 个上游编写节点","viewer.passport.reach.downstream.one":"追踪 {count} 个下游编写节点","viewer.passport.reach.downstream.other":"追踪 {count} 个下游编写节点","viewer.passport.reach.noUpstream":"没有上游编写节点","viewer.passport.reach.noDownstream":"没有下游编写节点","viewer.passport.reach.status":"{direction} · {nodes} 个节点 · {links} 条连接 · 最深 {hops} 跳","viewer.route.eyebrow":"路径探测","viewer.route.start":"选择起点节点","viewer.route.start.find":"查找起点","viewer.route.start.find.aria":"查找路径起点","viewer.route.copy":"复制链接","viewer.route.copy.aria":"复制已追踪路径的链接","viewer.route.clear":"清除","viewer.route.clear.aria":"清除路径探测","viewer.route.traced":"已追踪路径","viewer.route.pickTwo":"在图表中选择两个语义节点","viewer.route.pickOne":"在图表中选择一个语义节点","viewer.route.controls":"路径旅程控制","viewer.route.previous":"上一个路径位置","viewer.route.play":"播放路径旅程","viewer.route.pause":"暂停路径旅程","viewer.route.replay":"重播路径旅程","viewer.route.next":"下一个路径位置","viewer.route.journey":"旅程","viewer.route.pause.label":"暂停","viewer.route.replay.label":"重播","viewer.route.overview":"总览","viewer.route.overview.aria":"显示完整路径总览","viewer.route.instructions":"先选择来源，再选择目标；方向很重要。","viewer.route.destination":"选择从{label}出发的目标","viewer.route.destination.find":"查找目标","viewer.route.destination.find.aria":"查找可达的路径目标","viewer.route.differentDestination":"选择其他目标","viewer.route.distinct":"一条路径需要两个不同的语义节点。","viewer.route.unreachable":"没有通往{label}的有向路径","viewer.route.unreachable.detail":"从{source}无法到达{target}。请选择高亮的目标。","viewer.route.start.instructions":"选择来源。下一步只会显示有向可达的目标。","viewer.route.copy.success":"已复制路径链接","viewer.route.copy.failed":"无法复制路径链接","viewer.route.position":"路径位置 {index}/{total}：{label}","viewer.route.step":"第 {index}/{total} 步 · {phase} · {label}","viewer.route.motionRequired":"自动旅程需要动态模式","viewer.route.trigger.clear":"清除已追踪路径","viewer.route.overview.status":"{nodes} · {hops} · 最短编写路径","viewer.route.overview.node.one":"{count} 个节点","viewer.route.overview.node.other":"{count} 个节点","viewer.route.overview.hop.one":"{count} 个有向跳转","viewer.route.overview.hop.other":"{count} 个有向跳转","viewer.route.phase.playing":"播放中","viewer.route.phase.complete":"已完成","viewer.route.phase.inspecting":"检查中","viewer.route.destination.count.one":"有 {count} 个有向目标可用。请选择高亮节点。","viewer.route.destination.count.other":"有 {count} 个有向目标可用。请选择高亮节点。","viewer.route.noOutgoing":"此处没有可用的出向路径。请清除后选择其他来源。","viewer.route.result.title":"{source} 到 {target}","viewer.route.finder.source.title":"选择路径起点","viewer.route.finder.source.placeholder":"搜索路径来源","viewer.route.finder.source.empty":"没有匹配的路径来源","viewer.route.finder.source.results":"可作为路径起点的节点","viewer.route.finder.source.noun":"个路径来源","viewer.route.finder.source.badge":"起点","viewer.route.finder.target.title":"从{label}出发的目标","viewer.route.finder.target.placeholder":"搜索可达目标","viewer.route.finder.target.empty":"没有匹配的可达目标","viewer.route.finder.target.results":"可达路径目标","viewer.route.finder.target.noun":"个可达目标","viewer.route.hop.one":"{count} 跳","viewer.route.hop.other":"{count} 跳","viewer.lens.eyebrow":"语义透镜","viewer.lens.title":"比较系统角色","viewer.lens.close":"关闭语义透镜","viewer.lens.instruction":"最多选择两种语义类型。选择一种可显示其真实流量；选择两种只比较直接编写的关系。","viewer.lens.kinds":"语义类型","viewer.lens.choose":"选择一种类型以检查其节点和相连关系。","viewer.lens.copy":"复制语义透镜链接","viewer.lens.clear":"清除语义透镜","viewer.lens.open":"打开语义透镜","viewer.lens.openActive":"打开当前语义透镜","viewer.lens.legend":"语义图例","viewer.lens.legend.inspect.one":"检查{label}，{count} 个节点","viewer.lens.legend.inspect.other":"检查{label}，{count} 个节点","viewer.lens.kind.count.one":"{label}，{count} 个节点","viewer.lens.kind.count.other":"{label}，{count} 个节点","viewer.lens.compare.one":"{first} → {second}：{forward} · {second} → {first}：{reverse} · 共 {count} 条直接关系","viewer.lens.compare.other":"{first} → {second}：{forward} · {second} → {first}：{reverse} · 共 {count} 条直接关系","viewer.lens.single":"{nodes} · {relationships} · 已连接节点保持可见","viewer.lens.node.one":"{count} 个{label}节点","viewer.lens.node.other":"{count} 个{label}节点","viewer.lens.relationship.one":"{count} 条相连关系","viewer.lens.relationship.other":"{count} 条相连关系","viewer.radar.title":"语义雷达","viewer.radar.building":"正在构建总览","viewer.radar.openFull":"打开完整语义雷达","viewer.radar.open":"打开雷达","viewer.radar.close":"关闭语义雷达","viewer.radar.surface":"图表总览。点击节点进行聚焦，或使用方向键平移。","viewer.radar.click":"点击节点","viewer.radar.drag":"拖动平移","viewer.radar.space":"语义雷达需要更多地图可见空间。","viewer.radar.nodes":"语义图表雷达节点","viewer.radar.focus":"从语义雷达聚焦{label}","viewer.radar.status":"{count} 个节点 · {viewport}","viewer.radar.fullMap":"{count} 个节点 · 完整地图","viewer.radar.compacted":"已收紧雷达，避免遮挡语义护照或地图控件。","viewer.radar.cancelWaiting":"取消等待更多地图空间的语义雷达","viewer.radar.needsSpace":"语义雷达需要更多可见地图空间","viewer.radar.viewport.full":"完整地图","viewer.radar.viewport.width":"宽度 {percent}%","viewer.radar.viewport.scale":"视口 {percent}%","viewer.nav.controls":"图表视图控制","viewer.nav.route":"追踪有向路径","viewer.nav.route.title":"追踪路径（R）","viewer.nav.route.short":"路径","viewer.nav.radar":"打开语义雷达","viewer.nav.radar.title":"语义雷达（M）","viewer.nav.radar.short":"地图","viewer.nav.lens":"打开语义透镜","viewer.nav.lens.title":"语义透镜（L）","viewer.nav.lens.short":"透镜","viewer.nav.find":"查找节点","viewer.nav.find.title":"查找节点（/）","viewer.nav.guide":"打开图表指南","viewer.nav.guide.title":"图表指南（?）","viewer.nav.zoomOut":"缩小","viewer.nav.zoomOut.title":"缩小（-）","viewer.nav.reset":"重置图表视图","viewer.nav.reset.title":"重置视图（0）","viewer.nav.read":"阅读","viewer.nav.zoomIn":"放大","viewer.nav.zoomIn.title":"放大（+）","viewer.nav.camera":"{hint}。重置图表视图","viewer.nav.camera.title":"{semantic}{hint} · 重置视图（0）","viewer.nav.camera.semantic":"语义相机已启用 · ","viewer.nav.level.map":"概览","viewer.nav.level.read":"阅读","viewer.nav.level.full":"完整","viewer.nav.level.auto":"自动","viewer.nav.detail.map":"放大以显示关系标签和节点上下文","viewer.nav.detail.read":"再次放大以显示标签和注释","viewer.nav.detail.full":"完整图表详情","viewer.intent.summary":"{label}。{out} 条出向，{in} 条入向{loops}。共 {total} 条连接。按 Enter 查看详情。","viewer.intent.loops":"，{count} 条自环","viewer.common.copied":"已复制","viewer.common.copyFailed":"复制失败","viewer.common.copyLink":"复制链接","viewer.common.clear":"清除","viewer.common.close":"关闭"}}</script>
+    <div class="guided-views no-print" id="guided-views" hidden aria-label="图表引导视图">
+      <button id="guided-view-prev" type="button" aria-label="上一个引导视图" title="上一个引导视图（[）">&#8592;</button>
+      <div class="guided-view-copy">
+        <div class="guided-view-meta">
+          <span>引导视图</span>
+          <span id="guided-view-count"></span>
+          <span class="guided-view-progress" aria-hidden="true"><span id="guided-view-progress-bar"></span></span>
+          <span class="guided-view-handoff" id="guided-view-handoff" hidden aria-hidden="true"></span>
+        </div>
+        <strong id="guided-view-label">探索此系统</strong>
+        <small id="guided-view-note" aria-live="polite" aria-atomic="true">沿精选路径逐步查看，而不改变源图表。</small>
+        <div class="guided-view-trail" id="guided-view-trail" hidden role="group" aria-label="故事轨迹"></div>
+        <div class="guided-story-caption" id="guided-story-caption" hidden aria-live="polite" aria-atomic="true">
+          <span class="guided-story-caption-index" id="guided-story-caption-index">节点</span>
+          <strong id="guided-story-caption-route"></strong>
+          <small id="guided-story-caption-detail"></small>
+          <span class="guided-story-caption-next" id="guided-story-caption-next" hidden aria-hidden="true">
+            <small>下一步</small>
+            <strong id="guided-story-caption-next-label"></strong>
+          </span>
+        </div>
+      </div>
+      <button id="guided-view-next" type="button" aria-label="下一个引导视图" title="下一个引导视图（]）">&#8594;</button>
+      <div class="guided-view-actions">
+        <button class="guided-view-play" id="guided-view-play" type="button" aria-label="播放引导故事" aria-pressed="false" title="播放引导故事（P）">
+          <span id="guided-view-play-icon" aria-hidden="true">&#9654;</span>
+          <span id="guided-view-play-label">播放故事</span>
+        </button>
+        <button class="guided-view-beat-link" id="guided-view-beat-link" type="button" aria-label="选择故事节点以复制其精确链接" title="选择故事节点以复制其精确链接" disabled>
+          <span aria-hidden="true">&#35;</span>
+          <span id="guided-view-beat-link-label">复制此刻</span>
+        </button>
+        <button class="guided-view-all" id="guided-view-all" type="button" aria-label="显示完整图表">显示全部</button>
+      </div>
+      <nav class="guided-view-index" id="guided-view-index" aria-label="故事章节">
+        <ol class="guided-view-chapters" id="guided-view-chapters"></ol>
+      </nav>
+    </div>
+
+    <!-- Main Diagram -->
+    <div class="diagram-container" data-detail-level="read"
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+      <svg viewBox="0 0 1362 638" role="img" lang="zh-CN" aria-labelledby="archify-diagram-title archify-diagram-description" data-preset="classic" data-quality-profile="showcase">
+        <title id="archify-diagram-title">Windup 内部服务</title>
+        <desc id="archify-diagram-description">由 Archify 生成的架构图。</desc>
+        <!-- Definitions -->
+        <defs>
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+          </pattern>
+        </defs>
+
+        <!-- Background Grid -->
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+
+        <!-- Boundaries (behind everything) -->
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+
+        <!-- Connection paths (before components for correct z-order) -->
+        <path data-edge-from="workbench" data-edge-to="project" data-edge-label="打开项目" data-edge-key="0" data-edge-id="open-project" data-composition-points="164,331;248,331" d="M 164 331 L 248 331" class="a-emphasis" stroke-width="1.8" marker-end="url(#arrowhead-emphasis)"/>
+        <path data-edge-from="workbench" data-edge-to="auth" data-edge-label="登录 JWT" data-edge-key="1" data-edge-id="login" data-composition-points="102,300;102,190" d="M 102 300 L 102 190" class="a-default" stroke-width="1.5" marker-end="url(#arrowhead)"/>
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+        <path data-edge-from="bake" data-edge-to="aigw" data-edge-label="图生 3D" data-edge-key="10" data-edge-id="bake-gw" data-composition-points="530,550;530,574;1316,574;1316,331;1292,331" d="M 530 550 L 530 566 Q 530 574 538 574 L 1308 574 Q 1316 574 1316 566 L 1316 339 Q 1316 331 1308 331 L 1292 331" class="a-default" stroke-width="1.5" marker-end="url(#arrowhead)"/>
+        <path data-edge-from="bake" data-edge-to="postprocess" data-edge-label="交帧" data-edge-key="11" data-edge-id="bake-post" data-composition-points="604,519;860,519" d="M 604 519 L 860 519" class="a-default" stroke-width="1.5" marker-end="url(#arrowhead)"/>
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+        <!-- Components -->
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+        <text data-detail="fine" x="102" y="182" class="t-security" font-size="7" text-anchor="middle">JWT</text>
+        </g>
+
+        <g id="node-agent" data-node-id="agent" data-node-label="Quick Start Agent" tabindex="0" role="button" aria-label="聚焦Quick Start Agent，浏览器沙箱, 浏览器" aria-pressed="false" data-node-kind="frontend" data-node-sublabel="浏览器沙箱" data-node-context="浏览器">
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+        </g>
+
+        <g id="node-quota" data-node-id="quota" data-node-label="积分" tabindex="0" role="button" aria-label="聚焦积分，按用户账户, 应用机" aria-pressed="false" data-node-kind="backend" data-node-sublabel="按用户账户" data-node-context="应用机">
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+          <text data-node-label="" data-detail-anchor="" x="926" y="157" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">积分</text>
+        <text data-detail="context" x="926" y="173" class="t-muted" font-size="9" text-anchor="middle">按用户账户</text>
+        </g>
+
+        <g id="node-workbench" data-node-id="workbench" data-node-label="工作台" tabindex="0" role="button" aria-label="聚焦工作台，首页 / 试玩 / 导出, 架构组件, React" aria-pressed="false" data-node-kind="frontend" data-node-sublabel="首页 / 试玩 / 导出" data-node-context="架构组件" data-node-brand="React" data-node-brand-id="react" data-node-brand-status="preset" data-node-brand-source="https://github.com/facebook/create-react-app/blob/282c03f9525fdf8061ffa1ec50dce89296d916bd/test/fixtures/relative-paths/src/logo.svg">
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+            <path d="M8 2.2 13 4v3.5c0 3.1-1.8 5.4-5 6.5-3.2-1.1-5-3.4-5-6.5V4Z"/>
+            <path d="m5.8 8 1.5 1.5 3-3"/>
+          </g>
+          <text data-node-label="" data-detail-anchor="" x="742" y="329" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">敏感词</text>
+        <text data-detail="context" x="742" y="345" class="t-muted" font-size="9" text-anchor="middle">提交前拦截</text>
+        </g>
+
+        <g id="node-generation" data-node-id="generation" data-node-label="任务调度" tabindex="0" role="button" aria-label="聚焦任务调度，出图 / i2v / 出帧, 应用机" aria-pressed="false" data-node-kind="backend" data-node-sublabel="出图 / i2v / 出帧" data-node-context="应用机">
+          <title>任务调度 · 出图 / i2v / 出帧 · 应用机</title>
+          <rect x="860" y="300" width="132" height="62" rx="6" class="c-mask"/>
+          <rect x="860" y="300" width="132" height="62" rx="6" class="c-backend" stroke-width="1.5"/>
+          <g aria-hidden="true" data-semantic-sigil="backend" class="semantic-sigil s-backend" transform="translate(866 306) scale(0.6875)">
+            <path d="M6 3 3 8l3 5M10 3l3 5-3 5"/>
+          </g>
+          <text data-node-label="" data-detail-anchor="" x="926" y="329" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">任务调度</text>
+        <text data-detail="context" x="926" y="345" class="t-muted" font-size="9" text-anchor="middle">出图 / i2v / 出帧</text>
+        </g>
+
+        <g id="node-aigw" data-node-id="aigw" data-node-label="AI Gateway" tabindex="0" role="button" aria-label="聚焦AI Gateway，Chat · 图 · 视频 · 3D, 应用机" aria-pressed="false" data-node-kind="backend" data-node-sublabel="Chat · 图 · 视频 · 3D" data-node-context="应用机">
+          <title>AI Gateway · Chat · 图 · 视频 · 3D · 应用机</title>
+          <rect x="1160" y="300" width="132" height="62" rx="6" class="c-mask"/>
+          <rect x="1160" y="300" width="132" height="62" rx="6" class="c-backend" stroke-width="1.5"/>
+          <g aria-hidden="true" data-semantic-sigil="backend" class="semantic-sigil s-backend" transform="translate(1166 306) scale(0.6875)">
+            <path d="M6 3 3 8l3 5M10 3l3 5-3 5"/>
+          </g>
+          <text data-node-label="" data-detail-anchor="" x="1226" y="329" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">AI Gateway</text>
+        <text data-detail="context" x="1226" y="345" class="t-muted" font-size="9" text-anchor="middle">Chat · 图 · 视频 · 3D</text>
+        </g>
+
+        <g id="node-character" data-node-id="character" data-node-label="角色" tabindex="0" role="button" aria-label="聚焦角色，项目下的产物, 架构组件" aria-pressed="false" data-node-kind="database" data-node-sublabel="项目下的产物" data-node-context="架构组件">
+          <title>角色 · 项目下的产物 · 架构组件</title>
+          <rect x="1160" y="488" width="132" height="62" rx="6" class="c-mask"/>
+          <rect x="1160" y="488" width="132" height="62" rx="6" class="c-database" stroke-width="1.5"/>
+          <g aria-hidden="true" data-semantic-sigil="database" class="semantic-sigil s-database" transform="translate(1166 494) scale(0.6875)">
+            <ellipse cx="8" cy="4" rx="5" ry="2"/>
+            <path d="M3 4v8c0 1.1 2.2 2 5 2s5-.9 5-2V4M3 8c0 1.1 2.2 2 5 2s5-.9 5-2"/>
+          </g>
+          <text data-node-label="" data-detail-anchor="" x="1226" y="517" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">角色</text>
+        <text data-detail="context" x="1226" y="533" class="t-muted" font-size="9" text-anchor="middle">项目下的产物</text>
+        </g>
+
+        <g id="node-bake" data-node-id="bake" data-node-label="三渲二出帧" tabindex="0" role="button" aria-label="聚焦三渲二出帧，浏览器 WebGL, 浏览器" aria-pressed="false" data-node-kind="frontend" data-node-sublabel="浏览器 WebGL" data-node-context="浏览器">
+          <title>三渲二出帧 · 浏览器 WebGL · 浏览器</title>
+          <rect x="456" y="488" width="148" height="62" rx="6" class="c-mask"/>
+          <rect x="456" y="488" width="148" height="62" rx="6" class="c-frontend" stroke-width="1.5"/>
+          <g aria-hidden="true" data-semantic-sigil="frontend" class="semantic-sigil s-frontend" transform="translate(462 494) scale(0.6875)">
+            <rect x="2" y="3" width="12" height="10" rx="2"/>
+            <path d="M2 6.5h12"/>
+            <circle cx="4.1" cy="4.8" r=".7" class="sigil-fill"/>
+            <circle cx="6.3" cy="4.8" r=".7" class="sigil-fill"/>
+          </g>
+          <text data-node-label="" data-detail-anchor="" x="530" y="517" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">三渲二出帧</text>
+        <text data-detail="context" x="530" y="533" class="t-muted" font-size="9" text-anchor="middle">浏览器 WebGL</text>
+        </g>
+
+        <g id="node-postprocess" data-node-id="postprocess" data-node-label="资产后处理" tabindex="0" role="button" aria-label="聚焦资产后处理，抽帧 · 抠图 · 对齐, 应用机" aria-pressed="false" data-node-kind="backend" data-node-sublabel="抽帧 · 抠图 · 对齐" data-node-context="应用机">
+          <title>资产后处理 · 抽帧 · 抠图 · 对齐 · 应用机</title>
+          <rect x="860" y="488" width="132" height="62" rx="6" class="c-mask"/>
+          <rect x="860" y="488" width="132" height="62" rx="6" class="c-backend" stroke-width="1.5"/>
+          <g aria-hidden="true" data-semantic-sigil="backend" class="semantic-sigil s-backend" transform="translate(866 494) scale(0.6875)">
+            <path d="M6 3 3 8l3 5M10 3l3 5-3 5"/>
+          </g>
+          <text data-node-label="" data-detail-anchor="" x="926" y="517" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">资产后处理</text>
+        <text data-detail="context" x="926" y="533" class="t-muted" font-size="9" text-anchor="middle">抽帧 · 抠图 · 对齐</text>
+        </g>
+
+        <!-- Connection labels -->
+        <g data-detail="context" data-edge-from="workbench" data-edge-to="project" data-edge-label="打开项目" data-edge-key="0" data-edge-id="open-project">
+          <rect x="181.8" y="311" width="48.4" height="14" rx="3" class="c-mask"/>
+          <text x="206" y="321" class="t-backend" font-size="8" text-anchor="middle">打开项目</text>
+        </g>
+        <g data-detail="context" data-edge-from="workbench" data-edge-to="auth" data-edge-label="登录 JWT" data-edge-key="1" data-edge-id="login">
+          <rect x="77.8" y="280" width="48.4" height="14" rx="3" class="c-mask"/>
+          <text x="102" y="290" class="t-muted" font-size="8" text-anchor="middle">登录 JWT</text>
+        </g>
+        <g data-detail="context" data-edge-from="project" data-edge-to="workflow" data-edge-label="挂流程" data-edge-key="2" data-edge-id="project-flow">
+          <rect x="398.6" y="311" width="38.8" height="14" rx="3" class="c-mask"/>
+          <text x="418" y="321" class="t-backend" font-size="8" text-anchor="middle">挂流程</text>
+        </g>
+        <g data-detail="context" data-edge-from="agent" data-edge-to="workflow" data-edge-label="代跑节点" data-edge-key="3" data-edge-id="agent-flow">
+          <rect x="505.8" y="194" width="48.4" height="14" rx="3" class="c-mask"/>
+          <text x="530" y="204" class="t-muted" font-size="8" text-anchor="middle">代跑节点</text>
+        </g>
+        <g data-detail="context" data-edge-from="workflow" data-edge-to="filter" data-edge-label="先拦" data-edge-key="4" data-edge-id="flow-filter">
+          <rect x="627" y="311" width="30" height="14" rx="3" class="c-mask"/>
+          <text x="642" y="321" class="t-backend" font-size="8" text-anchor="middle">先拦</text>
+        </g>
+        <g data-detail="context" data-edge-from="filter" data-edge-to="generation" data-edge-label="通过" data-edge-key="5" data-edge-id="filter-gen">
+          <rect x="817" y="304" width="30" height="14" rx="3" class="c-mask"/>
+          <text x="832" y="314" class="t-backend" font-size="8" text-anchor="middle">通过</text>
+        </g>
+        <g data-detail="context" data-edge-from="generation" data-edge-to="aigw" data-edge-label="出图 / i2v" data-edge-key="6" data-edge-id="gen-gw">
+          <rect x="1047" y="311" width="58" height="14" rx="3" class="c-mask"/>
+          <text x="1076" y="321" class="t-backend" font-size="8" text-anchor="middle">出图 / i2v</text>
+        </g>
+        <g data-detail="context" data-edge-from="generation" data-edge-to="quota" data-edge-label="冻结积分" data-edge-key="7" data-edge-id="gen-quota">
+          <rect x="901.8" y="280" width="48.4" height="14" rx="3" class="c-mask"/>
+          <text x="926" y="290" class="t-muted" font-size="8" text-anchor="middle">冻结积分</text>
+        </g>
+        <g data-detail="context" data-edge-from="generation" data-edge-to="postprocess" data-edge-label="视频后处理" data-edge-key="8" data-edge-id="gen-post">
+          <rect x="897" y="366" width="58" height="14" rx="3" class="c-mask"/>
+          <text x="926" y="376" class="t-muted" font-size="8" text-anchor="middle">视频后处理</text>
+        </g>
+        <g data-detail="context" data-edge-from="generation" data-edge-to="bake" data-edge-label="下发出帧" data-edge-key="9" data-edge-id="gen-bake">
+          <rect x="811.8" y="381" width="48.4" height="14" rx="3" class="c-mask"/>
+          <text x="836" y="391" class="t-muted" font-size="8" text-anchor="middle">下发出帧</text>
+        </g>
+        <g data-detail="context" data-edge-from="bake" data-edge-to="aigw" data-edge-label="图生 3D" data-edge-key="10" data-edge-id="bake-gw">
+          <rect x="901.2" y="554" width="43.6" height="14" rx="3" class="c-mask"/>
+          <text x="923" y="564" class="t-muted" font-size="8" text-anchor="middle">图生 3D</text>
+        </g>
+        <g data-detail="context" data-edge-from="bake" data-edge-to="postprocess" data-edge-label="交帧" data-edge-key="11" data-edge-id="bake-post">
+          <rect x="717" y="499" width="30" height="14" rx="3" class="c-mask"/>
+          <text x="732" y="509" class="t-muted" font-size="8" text-anchor="middle">交帧</text>
+        </g>
+        <g data-detail="context" data-edge-from="postprocess" data-edge-to="character" data-edge-label="写入角色" data-edge-key="12" data-edge-id="post-char">
+          <rect x="1051.8" y="499" width="48.4" height="14" rx="3" class="c-mask"/>
+          <text x="1076" y="509" class="t-muted" font-size="8" text-anchor="middle">写入角色</text>
+        </g>
+        <g data-detail="context" data-edge-from="agent" data-edge-to="filter" data-edge-label="对话 /ai" data-edge-key="13" data-edge-id="agent-filter">
+          <rect x="611.8" y="84" width="48.4" height="14" rx="3" class="c-mask"/>
+          <text x="636" y="94" class="t-messagebus" font-size="8" text-anchor="middle">对话 /ai</text>
+        </g>
+        <g data-detail="context" data-edge-from="filter" data-edge-to="aigw" data-edge-label="过了才调" data-edge-key="14" data-edge-id="filter-chat">
+          <rect x="959.8" y="60" width="48.4" height="14" rx="3" class="c-mask"/>
+          <text x="984" y="70" class="t-messagebus" font-size="8" text-anchor="middle">过了才调</text>
+        </g>
+
+        <!-- Boundary labels (foreground masks keep routes out of titles) -->
+        <g data-graph-role="structural-frame-label" data-composition-frame-id="0" data-composition-frame-kind="region" data-composition-frame-label="浏览器">
+          <rect data-graph-role="structural-frame-label-mask" x="430" y="108" width="42.4" height="16" rx="3" class="c-mask"/>
+          <text data-boundary-label="" x="434" y="121" class="t-cloud" font-size="9" font-weight="600">浏览器</text>
+        </g>
+
+        <g data-graph-role="structural-frame-label" data-composition-frame-id="1" data-composition-frame-kind="region" data-composition-frame-label="应用机">
+          <rect data-graph-role="structural-frame-label-mask" x="654" y="108" width="42.4" height="16" rx="3" class="c-mask"/>
+          <text data-boundary-label="" x="658" y="121" class="t-cloud" font-size="9" font-weight="600">应用机</text>
+        </g>
+
+        <!-- Legend -->
+        <g data-legend="" data-legend-bridge="">
+          <text x="40" y="602" class="t-primary" font-size="12" font-weight="650">图例</text>
+          <g data-legend-semantic-kind="frontend" data-legend-kind="frontend" data-legend-label="前端" data-legend-x="40" data-legend-baseline="622" data-legend-width="63">
+            <rect x="40" y="613" width="16" height="10" rx="2.5" class="c-frontend" stroke-width="1"/>
+            <text x="62" y="622" class="t-muted" font-size="10" font-weight="500">前端</text>
+          </g>
+          <g data-legend-semantic-kind="backend" data-legend-kind="backend" data-legend-label="后端" data-legend-x="125" data-legend-baseline="622" data-legend-width="63">
+            <rect x="125" y="613" width="16" height="10" rx="2.5" class="c-backend" stroke-width="1"/>
+            <text x="147" y="622" class="t-muted" font-size="10" font-weight="500">后端</text>
+          </g>
+          <g data-legend-semantic-kind="database" data-legend-kind="database" data-legend-label="数据库" data-legend-x="210" data-legend-baseline="622" data-legend-width="73">
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+          </g>
+          <g data-legend-semantic-kind="security" data-legend-kind="security" data-legend-label="安全" data-legend-x="305" data-legend-baseline="622" data-legend-width="63">
+            <rect x="305" y="613" width="16" height="10" rx="2.5" class="c-security" stroke-width="1"/>
+            <text x="327" y="622" class="t-muted" font-size="10" font-weight="500">安全</text>
+          </g>
+        </g>
+      </svg>
+      <p class="intent-trace-status no-print" id="intent-trace-status" role="status" aria-live="polite" aria-atomic="true"></p>
+      <div class="share-chapter-cue no-print" id="share-chapter-cue" hidden role="status" aria-live="polite">
+        <div class="share-chapter-index">
+          <span class="share-chapter-state" id="share-chapter-state">就绪</span>
+          <span class="share-chapter-count" id="share-chapter-count">章节 01 / 01</span>
+        </div>
+        <div class="share-chapter-copy">
+          <strong id="share-chapter-label">引导章节</strong>
+          <small id="share-chapter-note"></small>
+        </div>
+        <span class="share-chapter-route" id="share-chapter-route"></span>
+        <span class="share-chapter-progress" aria-hidden="true"><span id="share-chapter-progress-bar"></span></span>
+      </div>
+      <div class="diagram-guide no-print" id="diagram-guide" hidden role="dialog" aria-modal="false" aria-labelledby="diagram-guide-title">
+        <div class="diagram-guide-head">
+          <span>
+            <span class="diagram-guide-eyebrow">图表指南</span>
+            <strong class="diagram-guide-title" id="diagram-guide-title">探索此系统</strong>
+          </span>
+          <button class="diagram-guide-close" id="diagram-guide-close" type="button" aria-label="关闭图表指南">&#215;</button>
+        </div>
+        <p class="diagram-guide-stats" id="diagram-guide-stats">正在检查已编译语义</p>
+        <div class="diagram-guide-actions" id="diagram-guide-actions" role="group" aria-label="图表探索操作">
+          <button class="diagram-guide-action" type="button" data-guide-action="find" aria-label="查找任意节点">
+            <span class="diagram-guide-index" aria-hidden="true">01</span>
+            <span class="diagram-guide-action-copy"><strong>查找任意节点</strong><small>搜索标签、职责、类型和稳定 ID。</small></span>
+            <kbd aria-hidden="true">/</kbd>
+          </button>
+          <button class="diagram-guide-action" type="button" data-guide-action="route" aria-label="追踪有向路径">
+            <span class="diagram-guide-index" aria-hidden="true">02</span>
+            <span class="diagram-guide-action-copy"><strong>追踪路径</strong><small>查看两个语义节点如何按编写方向连接。</small></span>
+            <kbd aria-hidden="true">R</kbd>
+          </button>
+          <button class="diagram-guide-action" type="button" data-guide-action="map" aria-label="查看完整系统">
+            <span class="diagram-guide-index" aria-hidden="true">03</span>
+            <span class="diagram-guide-action-copy"><strong>查看完整系统</strong><small>打开带实时视口和稳定节点的语义雷达。</small></span>
+            <kbd aria-hidden="true">M</kbd>
+          </button>
+          <button class="diagram-guide-action" type="button" data-guide-action="lens" aria-label="比较语义类型">
+            <span class="diagram-guide-index" aria-hidden="true">04</span>
+            <span class="diagram-guide-action-copy"><strong>比较语义类型</strong><small>统计角色、显示流量并比较直接编写的连接。</small></span>
+            <kbd aria-hidden="true">L</kbd>
+          </button>
+          <button class="diagram-guide-action" type="button" data-guide-action="story" aria-label="播放引导故事">
+            <span class="diagram-guide-index" aria-hidden="true">05</span>
+            <span class="diagram-guide-action-copy"><strong>播放引导故事</strong><small id="diagram-guide-story-copy">浏览已编写的章节和真实关系。</small></span>
+            <kbd aria-hidden="true">P</kbd>
+          </button>
+          <button class="diagram-guide-action" type="button" data-guide-action="present" aria-label="进入演示模式">
+            <span class="diagram-guide-index" aria-hidden="true">06</span>
+            <span class="diagram-guide-action-copy"><strong>进入演示模式</strong><small>让实时图表占满视口，同时不改变导出。</small></span>
+            <kbd aria-hidden="true">F</kbd>
+          </button>
+        </div>
+        <div class="diagram-guide-shortcuts" aria-label="其他键盘快捷键">
+          <span><kbd>E</kbd> 导出</span><span><kbd>T</kbd> 主题</span><span><kbd>S</kbd> 风格</span><span><kbd>0</kbd> 重置</span><span><kbd>+</kbd> 放大</span><span><kbd>-</kbd> 缩小</span><span><kbd>Esc</kbd> 关闭</span>
+        </div>
+        <p class="diagram-guide-feedback" id="diagram-guide-feedback" aria-live="polite"></p>
+      </div>
+      <div class="node-finder no-print" id="node-finder" hidden role="dialog" aria-modal="false" aria-labelledby="node-finder-title">
+        <div class="node-finder-head">
+          <strong id="node-finder-title">查找节点</strong>
+          <button class="node-finder-close" id="node-finder-close" type="button" aria-label="关闭节点查找器">&#215;</button>
+        </div>
+        <div class="node-finder-search">
+          <span aria-hidden="true">&#8981;</span>
+          <input class="node-finder-input" id="node-finder-input" type="search" autocomplete="off" spellcheck="false" placeholder="搜索标签或 ID" aria-label="搜索图表节点" aria-describedby="node-finder-status">
+          <kbd aria-hidden="true">/</kbd>
+        </div>
+        <div class="node-finder-results" id="node-finder-results" role="group" aria-label="图表节点"></div>
+        <p class="node-finder-empty" id="node-finder-empty" hidden>没有匹配的节点</p>
+        <p class="node-finder-status" id="node-finder-status" aria-live="polite"></p>
+      </div>
+      <div class="focus-chip relationship-lens no-print" id="focus-chip" hidden role="region" aria-labelledby="relationship-lens-title">
+        <div class="relationship-lens-head">
+          <div class="relationship-lens-copy">
+            <span class="relationship-lens-eyebrow">语义护照</span>
+            <strong class="relationship-lens-title" id="relationship-lens-title"><span id="focus-label"></span></strong>
+            <span class="semantic-passport-detail" id="focus-detail" hidden></span>
+            <div class="semantic-passport-meta" id="focus-passport-meta" aria-label="节点元数据">
+              <span id="focus-kind" data-passport="kind"></span>
+              <span id="focus-context" data-passport="context" hidden></span>
+              <span id="focus-tag" data-passport="tag" hidden></span>
+              <span id="focus-brand" data-passport="brand" hidden></span>
+              <code id="focus-id" data-passport="id"></code>
+            </div>
+            <div class="semantic-passport-evidence" id="focus-evidence" hidden aria-label="已验证的源代码证据">
+              <div class="semantic-passport-evidence-head">
+                <span class="semantic-passport-evidence-status">已验证来源</span>
+                <a class="semantic-passport-repository" id="focus-repository" target="_blank" rel="noopener noreferrer" referrerpolicy="no-referrer"></a>
+              </div>
+              <div class="semantic-passport-evidence-links" id="focus-evidence-links"></div>
+            </div>
+            <span class="relationship-lens-summary" id="focus-summary" aria-live="polite"></span>
+            <div class="semantic-passport-reach" id="focus-reach" hidden>
+              <span class="semantic-passport-reach-label">编写可达范围</span>
+              <div class="semantic-passport-reach-actions" role="group" aria-label="追踪编写的可达性">
+                <button id="btn-reach-upstream" type="button" aria-label="追踪上游编写可达性" aria-pressed="false">
+                  <span>上游</span><strong id="focus-reach-upstream-count">0</strong>
+                </button>
+                <button id="btn-reach-downstream" type="button" aria-label="追踪下游编写可达性" aria-pressed="false">
+                  <span>下游</span><strong id="focus-reach-downstream-count">0</strong>
+                </button>
+              </div>
+              <small class="semantic-passport-reach-status" id="focus-reach-status" hidden aria-live="polite"></small>
+            </div>
+          </div>
+          <div class="relationship-lens-actions">
+            <button id="btn-focus-clear" type="button" aria-label="关闭语义护照" title="关闭">&#215;</button>
+            <button id="btn-focus-copy" type="button" aria-label="复制聚焦节点的链接">复制链接</button>
+            <button id="btn-focus-relations" type="button" aria-label="显示关联关系" aria-expanded="false" aria-controls="relationship-lens-list">关系</button>
+          </div>
+        </div>
+        <div class="relationship-lens-list" id="relationship-lens-list" aria-label="关联关系"></div>
+      </div>
+      <div class="route-probe no-print" id="route-probe" hidden role="region" aria-labelledby="route-probe-title" data-state="idle">
+        <div class="route-probe-head">
+          <span class="route-probe-copy">
+            <span class="route-probe-eyebrow">路径探测</span>
+            <strong class="route-probe-title" id="route-probe-title">选择起点节点</strong>
+          </span>
+          <span class="route-probe-actions">
+            <button class="route-probe-find" id="route-probe-find" type="button" aria-label="查找路径起点" data-node-finder-trigger>查找起点</button>
+            <button class="route-probe-copy-link" id="route-probe-copy" type="button" aria-label="复制已追踪路径的链接" hidden>复制链接</button>
+            <button id="route-probe-clear" type="button" aria-label="清除路径探测">清除</button>
+          </span>
+        </div>
+        <div class="route-probe-path" id="route-probe-path" aria-label="已追踪路径">
+          <span class="route-probe-placeholder">在图表中选择两个语义节点</span>
+        </div>
+        <div class="route-journey-controls" id="route-journey-controls" hidden role="group" aria-label="路径旅程控制" data-playing="false">
+          <button id="route-journey-prev" type="button" aria-label="上一个路径位置" title="上一个路径位置">&#8592;</button>
+          <button class="route-journey-play" id="route-journey-play" type="button" aria-label="播放路径旅程" aria-pressed="false" title="播放路径旅程">
+            <span id="route-journey-play-icon" aria-hidden="true">&#9654;</span>
+            <span id="route-journey-play-label">旅程</span>
+          </button>
+          <button id="route-journey-next" type="button" aria-label="下一个路径位置" title="下一个路径位置">&#8594;</button>
+          <button class="route-journey-overview" id="route-journey-overview" type="button" aria-label="显示完整路径总览" title="显示完整路径总览">总览</button>
+        </div>
+        <small class="route-probe-status" id="route-probe-status" aria-live="polite">先选择来源，再选择目标；方向很重要。</small>
+      </div>
+      <div class="semantic-lens no-print" id="semantic-lens" hidden role="dialog" aria-modal="false" aria-labelledby="semantic-lens-title">
+        <div class="semantic-lens-head">
+          <span>
+            <span class="semantic-lens-eyebrow">语义透镜</span>
+            <strong class="semantic-lens-title" id="semantic-lens-title">比较系统角色</strong>
+          </span>
+          <button class="semantic-lens-close" id="semantic-lens-close" type="button" aria-label="关闭语义透镜">&#215;</button>
+        </div>
+        <p class="semantic-lens-instruction">最多选择两种语义类型。选择一种可显示其真实流量；选择两种只比较直接编写的关系。</p>
+        <div class="semantic-lens-kinds" id="semantic-lens-kinds" role="group" aria-label="语义类型"></div>
+        <p class="semantic-lens-status" id="semantic-lens-status" aria-live="polite">选择一种类型以检查其节点和相连关系。</p>
+        <div class="semantic-lens-actions">
+          <button id="semantic-lens-copy" type="button" aria-label="复制语义透镜链接" hidden>复制链接</button>
+          <button id="semantic-lens-clear" type="button" aria-label="清除语义透镜">清除</button>
+        </div>
+      </div>
+      <div class="overview-map no-print" id="overview-map" hidden role="region" aria-labelledby="overview-map-title">
+        <div class="overview-map-head">
+          <span class="overview-map-live" aria-hidden="true"></span>
+          <span class="overview-map-copy">
+            <strong id="overview-map-title">语义雷达</strong>
+            <small id="overview-map-status" aria-live="polite">正在构建总览</small>
+          </span>
+          <button class="overview-map-expand" id="overview-map-expand" type="button" aria-label="打开完整语义雷达">打开雷达</button>
+          <button class="overview-map-close" id="overview-map-close" type="button" aria-label="关闭语义雷达">&#215;</button>
+        </div>
+        <div class="overview-map-surface" id="overview-map-surface" tabindex="0" role="group" aria-label="图表总览。点击节点进行聚焦，或使用方向键平移。"></div>
+        <div class="overview-map-hint" aria-hidden="true"><span>点击节点</span><span>拖动平移</span></div>
+      </div>
+      <p class="overview-map-feedback no-print" id="overview-map-feedback" role="status" aria-live="polite" hidden>语义雷达需要更多地图可见空间。</p>
+      <div class="diagram-nav no-print" role="toolbar" aria-label="图表视图控制">
+        <button id="btn-route-probe" type="button" aria-label="追踪有向路径" aria-pressed="false" aria-controls="route-probe" title="追踪路径（R）">路径</button>
+        <button id="btn-overview-map" type="button" aria-label="打开语义雷达" aria-expanded="false" aria-controls="overview-map" title="语义雷达（M）">地图</button>
+        <button id="btn-semantic-lens" type="button" aria-label="打开语义透镜" aria-haspopup="dialog" aria-expanded="false" aria-pressed="false" aria-controls="semantic-lens" title="语义透镜（L）">透镜</button>
+        <button id="btn-node-finder" type="button" aria-label="查找节点" aria-haspopup="dialog" aria-expanded="false" aria-controls="node-finder" title="查找节点（/）" data-node-finder-trigger><span class="diagram-nav-icon find" aria-hidden="true"></span></button>
+        <button id="btn-diagram-guide" type="button" aria-label="打开图表指南" aria-haspopup="dialog" aria-expanded="false" aria-controls="diagram-guide" title="图表指南（?）"><span class="diagram-nav-icon guide" aria-hidden="true"></span></button>
+        <button data-view="out" type="button" aria-label="缩小" title="缩小（-）"><span class="diagram-nav-icon minus" aria-hidden="true"></span></button>
+        <button data-view="reset" type="button" aria-label="重置图表视图" title="重置视图（0）"><span class="diagram-nav-detail" data-view-detail hidden>阅读</span><span class="diagram-nav-percent" data-view-percent>100%</span></button>
+        <button data-view="in" type="button" aria-label="放大" title="放大（+）"><span class="diagram-nav-icon plus" aria-hidden="true"></span></button>
+      </div>
+    </div>
+
+    <!-- Info Cards -->
+    <div class="cards">
+      <div class="card">
+        <div class="card-header">
+          <div class="card-dot cyan"></div>
+          <h3>项目 · 鉴权 · 积分</h3>
+        </div>
+        <ul>
+          <li>&bull; 项目是用户名下的工作区：拥有 workflow_run 和角色，并保存朝向/尺寸等生成约束</li>
+          <li>&bull; JWT 认出用户；敏感词在建任务和冻积分之前拦 prompt，/ai 对话进 Gateway 前同样拦</li>
+          <li>&bull; 积分账户一人一行，提交出图/i2v 时冻结；不按项目扣，Agent 对话也不走这本账</li>
+        </ul>
+      </div>
+
+      <div class="card">
+        <div class="card-header">
+          <div class="card-dot emerald"></div>
+          <h3>为什么 Agent 在前端</h3>
+        </div>
+        <ul>
+          <li>&bull; 节点编排由前端感知：Controller 跑图，/workflow-runs 只全量存 nodes，后端不执行</li>
+          <li>&bull; Agent 代跑的是同一套前端节点，必须和编排状态在同一个浏览器里</li>
+          <li>&bull; 浏览器沙箱隔离工具与对话循环；对话仍经 /ai 进 Gateway，密钥不进前端</li>
+        </ul>
+      </div>
+
+      <div class="card">
+        <div class="card-header">
+          <div class="card-dot amber"></div>
+          <h3>双出帧路径</h3>
+        </div>
+        <ul>
+          <li>&bull; 视频：i2v 经 Gateway 拿回后，抽帧、抠图、像素化、脚线对齐都在应用机 Worker 上做</li>
+          <li>&bull; 编排只调任务调度，不直连出帧。i2v 经 Gateway 后资产后处理；三渲二出帧指向 Gateway 做图生 3D / 绑骨，调度再下发浏览器出帧</li>
+          <li>&bull; 出帧只做 WebGL。两条线都写入角色，成色闸仍在资产后处理</li>
+        </ul>
+      </div>
+    </div>
+
+  </div>
+
+  <script>
+    var Archify = {};
+    var archifyI18nData = (function () {
+      var node = document.getElementById('archify-i18n-data');
+      try { return JSON.parse(node ? node.textContent : '{}'); }
+      catch (_) { return { locale: 'en', messages: {} }; }
+    })();
+    Archify.locale = archifyI18nData.locale || 'en';
+
+    function viewerText(key, values) {
+      var messages = archifyI18nData.messages || {};
+      var template = Object.prototype.hasOwnProperty.call(messages, key) ? messages[key] : key;
+      return String(template).replace(/\{([a-zA-Z0-9_]+)\}/g, function (match, name) {
+        return values && Object.prototype.hasOwnProperty.call(values, name) ? String(values[name]) : match;
+      });
+    }
+
+    function viewerCount(key, count, values) {
+      var suffix = Number(count) === 1 ? '.one' : '.other';
+      var payload = Object.assign({}, values || {}, { count: count });
+      return viewerText(key + suffix, payload);
+    }
+
+    function viewerKindLabel(value) {
+      var normalized = String(value || 'node').toLowerCase();
+      var knownKey = 'viewer.kind.' + normalized;
+      var known = viewerText(knownKey);
+      if (known !== knownKey) return known;
+      return normalized
+        .replace(/messagebus/gi, 'message bus')
+        .replace(/[-_]+/g, ' ')
+        .replace(/\b\w/g, function (letter) { return letter.toUpperCase(); });
+    }
+
+    function hasDrawableGeometry(element) {
+      if (!element) return false;
+      var geometries = /^(path|line|polyline)$/i.test(element.tagName)
+        ? [element]
+        : Array.prototype.slice.call(element.querySelectorAll('path, line, polyline'));
+      return geometries.some(function (geometry) {
+        var source = geometry.tagName.toLowerCase() === 'path'
+          ? geometry.getAttribute('d')
+          : geometry.tagName.toLowerCase() === 'polyline'
+            ? geometry.getAttribute('points')
+            : [geometry.getAttribute('x1'), geometry.getAttribute('y1'), geometry.getAttribute('x2'), geometry.getAttribute('y2')].join(' ');
+        if (!source || /(?:^|[^a-z])(?:nan|infinity)(?:[^a-z]|$)/i.test(source) || typeof geometry.getTotalLength !== 'function') return false;
+        try {
+          var length = Number(geometry.getTotalLength());
+          return Number.isFinite(length) && length > 0;
+        } catch (_) {
+          return false;
+        }
+      });
+    }
+
+    /* ============================================================
+       Visual style try-on — one topology, four bundled presets.
+       The reader's choice is intentionally session-only: it updates the
+       live page and canonical SVG together, but never rewrites the source,
+       URL, or a later diagram's authored default.
+       ============================================================ */
+    Archify.preset = (function () {
+      var PRESETS = ['classic', 'signal-flow', 'blueprint', 'editorial'];
+      var LABELS = {
+        classic: viewerText('viewer.preset.classic.short'),
+        'signal-flow': viewerText('viewer.preset.flow.short'),
+        blueprint: viewerText('viewer.preset.blueprint'),
+        editorial: viewerText('viewer.preset.editorial')
+      };
+      var html = document.documentElement;
+      var svg = document.querySelector('.diagram-container svg');
+      var btn = document.getElementById('btn-preset');
+      var label = document.getElementById('preset-label');
+      var menu = document.getElementById('preset-menu');
+      var options = function () {
+        return Array.prototype.slice.call(menu.querySelectorAll('[data-preset-value]'));
+      };
+      var authored = PRESETS.indexOf(html.getAttribute('data-preset')) >= 0
+        ? html.getAttribute('data-preset')
+        : 'classic';
+
+      function current() {
+        var value = html.getAttribute('data-preset');
+        return PRESETS.indexOf(value) >= 0 ? value : authored;
+      }
+      function nextAfter(preset) {
+        return PRESETS[(PRESETS.indexOf(preset) + 1) % PRESETS.length];
+      }
+      function apply(preset) {
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (PRESETS.indexOf(preset) < 0) return false;
+        html.setAttribute('data-preset', preset);
+        svg.setAttribute('data-preset', preset);
+        btn.setAttribute('data-preset-option', preset);
+        label.textContent = LABELS[preset];
+        btn.setAttribute('aria-label', viewerText('viewer.preset.current', { style: LABELS[preset] }));
+        btn.title = viewerText('viewer.preset.choose.title');
+        options().forEach(function (option) {
+          var selected = option.getAttribute('data-preset-value') === preset;
+          option.setAttribute('aria-checked', String(selected));
+        });
+        return true;
+      }
+      function cycle() { return apply(nextAfter(current())); }
+
+      function isOpen() { return menu.classList.contains('open'); }
+      function open(focusLast) {
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (Archify.exportMenu && Archify.exportMenu.isOpen()) Archify.exportMenu.close(false);
+        menu.classList.add('open');
+        btn.setAttribute('aria-expanded', 'true');
+        var available = options();
+        var selected = available.find(function (option) { return option.getAttribute('aria-checked') === 'true'; });
+        var target = focusLast ? available[available.length - 1] : (selected || available[0]);
+        if (target) target.focus();
+        return true;
+      }
+      function close(focusTrigger) {
+        menu.classList.remove('open');
+        btn.setAttribute('aria-expanded', 'false');
+        if (focusTrigger) btn.focus();
+        return false;
+      }
+
+      apply(authored);
+      btn.addEventListener('click', function (e) {
+        e.stopPropagation();
+        if (isOpen()) close(false);
+        else open(false);
+      });
+      btn.addEventListener('keydown', function (e) {
+        if (e.key === 'ArrowDown' || e.key === 'ArrowUp') {
+          e.preventDefault();
+          if (!isOpen()) open(e.key === 'ArrowUp');
+        }
+      });
+      document.addEventListener('click', function (e) {
+        if (!menu.contains(e.target) && e.target !== btn) close(false);
+      });
+      menu.addEventListener('click', function (e) {
+        var option = e.target.closest('[data-preset-value]');
+        if (!option || !menu.contains(option)) return;
+        if (apply(option.getAttribute('data-preset-value'))) close(true);
+      });
+      menu.addEventListener('keydown', function (e) {
+        if (e.key === 'Escape') { e.preventDefault(); close(true); return; }
+        if (e.key === 'Tab') { close(false); return; }
+        var available = options();
+        var active = available.indexOf(document.activeElement);
+        switch (e.key) {
+          case 'ArrowDown':
+            e.preventDefault();
+            if (available.length) available[(active + 1 + available.length) % available.length].focus();
+            break;
+          case 'ArrowUp':
+            e.preventDefault();
+            if (available.length) available[(active - 1 + available.length) % available.length].focus();
+            break;
+          case 'Home':
+            e.preventDefault();
+            if (available[0]) available[0].focus();
+            break;
+          case 'End':
+            e.preventDefault();
+            if (available.length) available[available.length - 1].focus();
+            break;
+        }
+      });
+      return { cycle: cycle, apply: apply, current: current, authored: authored, open: open, close: close, isOpen: isOpen };
+    })();
+
+    /* ============================================================
+       Theme toggle — persists to localStorage, respects system pref
+       ============================================================ */
+
+    Archify.theme = (function () {
+      var STORAGE_KEY = 'archify-theme';
+      var html = document.documentElement;
+      var btn = document.getElementById('btn-theme');
+      var label = document.getElementById('theme-label');
+
+      // localStorage can throw (blocked cookies, sandboxed iframes); the whole
+      // script element dies on an uncaught error, so guard every access.
+      function readStored() {
+        try { return localStorage.getItem(STORAGE_KEY); } catch (_) { return null; }
+      }
+      function writeStored(value) {
+        try { localStorage.setItem(STORAGE_KEY, value); } catch (_) {}
+      }
+      function urlOverride() {
+        // URL param wins (useful for deterministic screenshots / share links)
+        try {
+          var param = new URLSearchParams(window.location.search).get('theme');
+          if (param === 'light' || param === 'dark') return param;
+        } catch (_) {}
+        return null;
+      }
+
+      function resolveInitial() {
+        var fromUrl = urlOverride();
+        if (fromUrl) return fromUrl;
+        var saved = readStored();
+        if (saved === 'light' || saved === 'dark') return saved;
+        return window.matchMedia('(prefers-color-scheme: light)').matches ? 'light' : 'dark';
+      }
+
+      function apply(theme) {
+        html.setAttribute('data-theme', theme);
+        label.textContent = viewerText(theme === 'dark' ? 'viewer.theme.dark' : 'viewer.theme.light');
+        btn.setAttribute('aria-pressed', theme === 'light' ? 'true' : 'false');
+      }
+
+      function toggle() {
+        var next = html.getAttribute('data-theme') === 'dark' ? 'light' : 'dark';
+        apply(next);
+        writeStored(next);
+      }
+
+      apply(resolveInitial());
+      btn.addEventListener('click', toggle);
+
+      // Follow live OS theme changes while the user has no explicit preference.
+      try {
+        var media = window.matchMedia('(prefers-color-scheme: light)');
+        var onChange = function (e) {
+          var saved = readStored();
+          if (urlOverride() || saved === 'light' || saved === 'dark') return;
+          apply(e.matches ? 'light' : 'dark');
+        };
+        if (media.addEventListener) media.addEventListener('change', onChange);
+        else if (media.addListener) media.addListener(onChange);
+      } catch (_) {}
+
+      return { toggle: toggle };
+    })();
+
+    /* ============================================================
+       Export — Share Card / PNG / JPEG / WebP / SVG / WebM and clipboard
+
+       Raster exports are always rendered at 4x source resolution for
+       maximum sharpness. The trick: we set the serialized SVG's
+       `width`/`height` to viewBox * 4 so the browser rasterizes the
+       vectors at that resolution natively. drawImage then draws at
+       the image's natural size (no upscaling = no blur).
+
+       JPEG/WebP paint the current theme's background explicitly since
+       those formats have no alpha channel.
+       ============================================================ */
+    (function () {
+      var RASTER_SCALE = 4;
+      var MOTION_DURATION = 6000;
+      var MOTION_FPS = 30;
+      var SHARE_CARD_WIDTH = 1200;
+      var SHARE_CARD_HEIGHT = 630;
+      var SHARE_CARD_PADDING = 36;
+      var SHARE_CARD_HEADER = 112;
+
+      function exportError(key, values) {
+        var error = new Error(viewerText(key, values));
+        error.archifyViewerMessage = true;
+        return error;
+      }
+
+      function exportMessage(error) {
+        return error && error.archifyViewerMessage
+          ? error.message
+          : viewerText('viewer.export.unknown');
+      }
+
+      function diagramFilename() {
+        var title = (document.title || 'diagram')
+          .replace(/\s+Architecture(\s+Diagram)?$/i, '')
+          .replace(/\s+Diagram$/i, '')
+          .trim();
+        return title.replace(/[^a-z0-9_\-]+/gi, '-')
+                    .toLowerCase()
+                    .replace(/^-+|-+$/g, '') || 'diagram';
+      }
+
+      function currentBg() {
+        return getComputedStyle(document.body).backgroundColor || '#ffffff';
+      }
+
+      /**
+       * Serialize the main SVG into a standalone document.
+       *
+       * Two modes:
+       * - Default (opts.autoTheme=false) — locks the serialized SVG to the
+       *   viewer's current theme. Used by the raster pipeline
+       *   (PNG/JPEG/WebP/clipboard) because canvas rasterization needs
+       *   deterministic colors; a raster cannot react to
+       *   prefers-color-scheme after encoding.
+       * - autoTheme=true — emits BOTH dark and light variable sets plus a
+       *   `@media (prefers-color-scheme)` rule so the resulting SVG
+       *   self-themes when embedded in GitHub READMEs or other hosts that
+       *   expose a color scheme. Used for "Download SVG".
+       */
+      function applyRouteSnapshot(clone, snapshot) {
+        if (!snapshot || !Array.isArray(snapshot.nodeIds) || !Array.isArray(snapshot.edges) ||
+            snapshot.nodeIds.length < 2 || snapshot.edges.length !== snapshot.nodeIds.length - 1 ||
+            snapshot.hops !== snapshot.edges.length ||
+            !snapshot.source || !snapshot.target ||
+            snapshot.source.id !== snapshot.nodeIds[0] ||
+            snapshot.target.id !== snapshot.nodeIds[snapshot.nodeIds.length - 1]) return false;
+
+        clone.removeAttribute('data-animation');
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-animate]'), function (element) {
+          element.removeAttribute('data-animate');
+          element.style.removeProperty('--step');
+        });
+
+        var cloneNodes = Array.prototype.slice.call(clone.querySelectorAll('[data-node-id]'));
+        var cloneEdges = Array.prototype.slice.call(clone.querySelectorAll('[data-edge-key]'));
+        var nodeIds = Object.create(null);
+        var edgeKeys = Object.create(null);
+        var nodeMatches = [];
+        var edgeMatches = [];
+
+        for (var nodeIndex = 0; nodeIndex < snapshot.nodeIds.length; nodeIndex++) {
+          var nodeId = snapshot.nodeIds[nodeIndex];
+          if (typeof nodeId !== 'string' || !nodeId || nodeIds[nodeId]) return false;
+          var matchedNodes = cloneNodes.filter(function (candidate) {
+            return candidate.getAttribute('data-node-id') === nodeId;
+          });
+          if (matchedNodes.length !== 1) return false;
+          nodeIds[nodeId] = true;
+          nodeMatches.push(matchedNodes);
+        }
+
+        for (var edgeIndex = 0; edgeIndex < snapshot.edges.length; edgeIndex++) {
+          var edge = snapshot.edges[edgeIndex];
+          var fromId = snapshot.nodeIds[edgeIndex];
+          var toId = snapshot.nodeIds[edgeIndex + 1];
+          if (!edge || typeof edge.key !== 'string' || !edge.key || edgeKeys[edge.key] ||
+              edge.from !== fromId || edge.to !== toId) return false;
+          var matchedEdges = cloneEdges.filter(function (candidate) {
+            return candidate.getAttribute('data-edge-key') === edge.key;
+          });
+          var drawableMatches = matchedEdges.filter(hasDrawableGeometry);
+          if (!matchedEdges.length || drawableMatches.length !== 1 || !matchedEdges.every(function (candidate) {
+            return candidate.getAttribute('data-edge-from') === edge.from &&
+              candidate.getAttribute('data-edge-to') === edge.to &&
+              (candidate.getAttribute('data-edge-id') || '') === (edge.id || '');
+          })) return false;
+          edgeKeys[edge.key] = true;
+          edgeMatches.push(matchedEdges);
+        }
+
+        clone.setAttribute('data-share-route', '');
+        nodeMatches.forEach(function (matches, step) {
+          matches.forEach(function (element) {
+            element.setAttribute('data-share-route-match', '');
+            element.setAttribute('data-share-route-step', String(step));
+            if (step === 0) element.setAttribute('data-share-route-start', '');
+            else if (step === snapshot.nodeIds.length - 1) element.setAttribute('data-share-route-end', '');
+            else element.setAttribute('data-share-route-middle', '');
+          });
+        });
+        edgeMatches.forEach(function (matches, step) {
+          matches.forEach(function (element) {
+            element.setAttribute('data-share-route-match', '');
+            element.setAttribute('data-share-route-step', String(step));
+          });
+        });
+
+        return clone.hasAttribute('data-share-route') &&
+          !clone.hasAttribute('data-animation') &&
+          !clone.hasAttribute('data-route-active') &&
+          !clone.hasAttribute('data-route-journey') &&
+          clone.querySelectorAll('[data-animate], [data-route-match], [data-route-step], [data-route-start], [data-route-end], [data-route-journey-state], [data-route-journey-current], [data-route-journey-overlay]').length === 0 &&
+          clone.querySelectorAll('[data-share-route-match]').length ===
+            nodeMatches.reduce(function (count, matches) { return count + matches.length; }, 0) +
+            edgeMatches.reduce(function (count, matches) { return count + matches.length; }, 0);
+      }
+
+      function applyReachSnapshot(clone, snapshot) {
+        if (!snapshot || (snapshot.direction !== 'upstream' && snapshot.direction !== 'downstream') ||
+            !snapshot.origin || typeof snapshot.origin.id !== 'string' || !snapshot.origin.id ||
+            typeof snapshot.origin.label !== 'string' || !snapshot.origin.label.trim() ||
+            !Array.isArray(snapshot.nodeIds) || snapshot.nodeIds.length < 2 ||
+            !Array.isArray(snapshot.edges) || !snapshot.edges.length ||
+            !snapshot.depths || typeof snapshot.depths !== 'object' ||
+            !Number.isInteger(snapshot.maxDepth) || snapshot.maxDepth < 1 ||
+            snapshot.nodeIds[0] !== snapshot.origin.id) return false;
+
+        clone.removeAttribute('data-animation');
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-animate]'), function (element) {
+          element.removeAttribute('data-animate');
+          element.style.removeProperty('--step');
+        });
+
+        var cloneNodes = Array.prototype.slice.call(clone.querySelectorAll('[data-node-id]'));
+        var cloneEdges = Array.prototype.slice.call(clone.querySelectorAll('[data-edge-key]'));
+        var nodeIds = Object.create(null);
+        var edgeKeys = Object.create(null);
+        var nodeMatches = [];
+        var edgeMatches = [];
+        var measuredMaxDepth = 0;
+
+        for (var nodeIndex = 0; nodeIndex < snapshot.nodeIds.length; nodeIndex++) {
+          var nodeId = snapshot.nodeIds[nodeIndex];
+          var depth = snapshot.depths[nodeId];
+          if (typeof nodeId !== 'string' || !nodeId || nodeIds[nodeId] ||
+              !Number.isInteger(depth) || depth < 0 || depth > snapshot.maxDepth ||
+              (nodeId === snapshot.origin.id ? depth !== 0 : depth < 1)) return false;
+          var matchedNodes = cloneNodes.filter(function (candidate) {
+            return candidate.getAttribute('data-node-id') === nodeId;
+          });
+          if (matchedNodes.length !== 1) return false;
+          nodeIds[nodeId] = true;
+          measuredMaxDepth = Math.max(measuredMaxDepth, depth);
+          nodeMatches.push({ elements: matchedNodes, id: nodeId, depth: depth });
+        }
+        if (measuredMaxDepth !== snapshot.maxDepth) return false;
+
+        for (var edgeIndex = 0; edgeIndex < snapshot.edges.length; edgeIndex++) {
+          var edge = snapshot.edges[edgeIndex];
+          if (!edge || typeof edge.key !== 'string' || !edge.key || edgeKeys[edge.key] ||
+              !nodeIds[edge.from] || !nodeIds[edge.to] ||
+              !Number.isInteger(edge.depth) || edge.depth < 1 || edge.depth > snapshot.maxDepth ||
+              edge.depth !== Math.max(snapshot.depths[edge.from], snapshot.depths[edge.to])) return false;
+          var matchedEdges = cloneEdges.filter(function (candidate) {
+            return candidate.getAttribute('data-edge-key') === edge.key;
+          });
+          var drawableMatches = matchedEdges.filter(hasDrawableGeometry);
+          if (!matchedEdges.length || drawableMatches.length !== 1 || !matchedEdges.every(function (candidate) {
+            return candidate.getAttribute('data-edge-from') === edge.from &&
+              candidate.getAttribute('data-edge-to') === edge.to &&
+              (candidate.getAttribute('data-edge-id') || '') === (edge.id || '');
+          })) return false;
+          edgeKeys[edge.key] = true;
+          edgeMatches.push({ elements: matchedEdges, depth: edge.depth });
+        }
+
+        clone.setAttribute('data-share-reach', snapshot.direction);
+        nodeMatches.forEach(function (match) {
+          match.elements.forEach(function (element) {
+            element.setAttribute('data-share-reach-match', '');
+            element.setAttribute('data-share-reach-depth', String(match.depth));
+            if (match.id === snapshot.origin.id) element.setAttribute('data-share-reach-origin', '');
+          });
+        });
+        edgeMatches.forEach(function (match) {
+          match.elements.forEach(function (element) {
+            element.setAttribute('data-share-reach-match', '');
+            element.setAttribute('data-share-reach-depth', String(match.depth));
+          });
+        });
+
+        return clone.getAttribute('data-share-reach') === snapshot.direction &&
+          !clone.hasAttribute('data-animation') &&
+          !clone.hasAttribute('data-reach-active') &&
+          clone.querySelectorAll('[data-animate], [data-reach-match], [data-reach-origin], [data-reach-depth]').length === 0 &&
+          clone.querySelectorAll('[data-share-reach-origin]').length === 1 &&
+          clone.querySelectorAll('[data-share-reach-match]').length ===
+            nodeMatches.reduce(function (count, match) { return count + match.elements.length; }, 0) +
+            edgeMatches.reduce(function (count, match) { return count + match.elements.length; }, 0);
+      }
+
+      function serializeSvg(scale, opts) {
+        // scale: integer multiplier for intrinsic SVG pixel dimensions used by
+        // the raster path. Defaults to 1 (natural size) for SVG download.
+        scale = scale || 1;
+        opts = opts || {};
+        var autoTheme = opts.autoTheme === true;
+        var svg = document.querySelector('.diagram-container svg');
+        var clone = svg.cloneNode(true);
+
+        // View transforms and neighborhood focus are HTML exploration state,
+        // never part of a downloaded full-diagram artifact.
+        clone.style.removeProperty('transform');
+        clone.style.removeProperty('clip-path');
+        clone.removeAttribute('data-view-scale');
+        clone.removeAttribute('data-focus-active');
+        clone.removeAttribute('data-reach-active');
+        clone.removeAttribute('data-lens-active');
+        clone.removeAttribute('data-lens-flow-count');
+        clone.removeAttribute('data-lens-flow-density');
+        clone.removeAttribute('data-legend-preview-active');
+        clone.removeAttribute('data-relationship-preview-active');
+        clone.removeAttribute('data-relationship-direct-active');
+        clone.removeAttribute('data-relationship-pin-active');
+        clone.removeAttribute('data-intent-trace-active');
+        clone.removeAttribute('data-route-picking');
+        clone.removeAttribute('data-route-active');
+        clone.removeAttribute('data-route-journey');
+        clone.removeAttribute('data-share-route');
+        clone.removeAttribute('data-share-reach');
+        clone.removeAttribute('data-story-active');
+        clone.removeAttribute('data-story-playing');
+        clone.removeAttribute('data-story-beat');
+        clone.removeAttribute('data-story-next');
+        clone.removeAttribute('data-story-follow');
+        clone.removeAttribute('data-chapter-handoff');
+        clone.removeAttribute('data-chapter-anchor');
+        clone.removeAttribute('data-chapter-preview');
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-chapter-handoff-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-chapter-role]'), function (el) {
+          el.removeAttribute('data-chapter-role');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-chapter-preview-role]'), function (el) {
+          el.removeAttribute('data-chapter-preview-role');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-story-overlay], [data-story-carrier-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-intent-trace-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-route-probe-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-route-journey-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-semantic-lens-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-legend-bridge-runtime]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-legend-kind]'), function (el) {
+          el.removeAttribute('data-legend-kind');
+          el.removeAttribute('data-legend-label');
+          el.removeAttribute('data-legend-count');
+          el.removeAttribute('data-legend-zero');
+          el.removeAttribute('data-legend-selected');
+          el.removeAttribute('role');
+          el.removeAttribute('tabindex');
+          el.removeAttribute('aria-label');
+          el.removeAttribute('aria-pressed');
+          el.removeAttribute('aria-haspopup');
+          el.removeAttribute('aria-controls');
+          el.removeAttribute('aria-expanded');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-legend-bridge]'), function (el) {
+          el.removeAttribute('data-legend-bridge');
+          el.removeAttribute('role');
+          el.removeAttribute('aria-label');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-relationship-pulse-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-relationship-hit-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-source-evidence-beacon]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-source-evidence-count]'), function (el) {
+          var originalLabel = el.getAttribute('data-source-evidence-original-label');
+          if (originalLabel == null || originalLabel === '') el.removeAttribute('aria-label');
+          else el.setAttribute('aria-label', originalLabel);
+          el.removeAttribute('data-source-evidence-count');
+          el.removeAttribute('data-source-evidence-original-label');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-story-step], [data-story-beat-state], [data-story-beat-step]'), function (el) {
+          el.removeAttribute('data-story-step');
+          el.removeAttribute('data-story-beat-state');
+          el.removeAttribute('data-story-beat-step');
+          el.style.removeProperty('--story-step');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-focus-match], [data-focus-selected]'), function (el) {
+          el.removeAttribute('data-focus-match');
+          el.removeAttribute('data-focus-selected');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-reach-match], [data-reach-origin], [data-reach-depth]'), function (el) {
+          el.removeAttribute('data-reach-match');
+          el.removeAttribute('data-reach-origin');
+          el.removeAttribute('data-reach-depth');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-lens-match], [data-lens-selected], [data-lens-peer]'), function (el) {
+          el.removeAttribute('data-lens-match');
+          el.removeAttribute('data-lens-selected');
+          el.removeAttribute('data-lens-peer');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-legend-preview-match], [data-legend-preview-selected], [data-legend-preview-peer]'), function (el) {
+          el.removeAttribute('data-legend-preview-match');
+          el.removeAttribute('data-legend-preview-selected');
+          el.removeAttribute('data-legend-preview-peer');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-relationship-preview], [data-relationship-preview-node], [data-relationship-preview-source], [data-relationship-preview-target]'), function (el) {
+          el.removeAttribute('data-relationship-preview');
+          el.removeAttribute('data-relationship-preview-node');
+          el.removeAttribute('data-relationship-preview-source');
+          el.removeAttribute('data-relationship-preview-target');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-intent-trace-match], [data-intent-trace-selected]'), function (el) {
+          el.removeAttribute('data-intent-trace-match');
+          el.removeAttribute('data-intent-trace-selected');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-route-match], [data-route-start], [data-route-end], [data-route-step], [data-route-candidate], [data-route-journey-state], [data-route-journey-current]'), function (el) {
+          el.removeAttribute('data-route-match');
+          el.removeAttribute('data-route-start');
+          el.removeAttribute('data-route-end');
+          el.removeAttribute('data-route-step');
+          el.removeAttribute('data-route-candidate');
+          el.removeAttribute('data-route-journey-state');
+          el.removeAttribute('data-route-journey-current');
+          el.style.removeProperty('--route-step');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-share-route-match], [data-share-route-step], [data-share-route-start], [data-share-route-end], [data-share-route-middle]'), function (el) {
+          el.removeAttribute('data-share-route-match');
+          el.removeAttribute('data-share-route-step');
+          el.removeAttribute('data-share-route-start');
+          el.removeAttribute('data-share-route-end');
+          el.removeAttribute('data-share-route-middle');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-share-reach-match], [data-share-reach-origin], [data-share-reach-depth]'), function (el) {
+          el.removeAttribute('data-share-reach-match');
+          el.removeAttribute('data-share-reach-origin');
+          el.removeAttribute('data-share-reach-depth');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-detail], [data-detail-anchor]'), function (el) {
+          el.removeAttribute('data-detail');
+          el.removeAttribute('data-detail-anchor');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-node-id][aria-pressed]'), function (el) {
+          el.setAttribute('aria-pressed', 'false');
+        });
+        var canonicalStateClean = !clone.hasAttribute('data-view-scale') &&
+          !clone.hasAttribute('data-focus-active') &&
+          !clone.hasAttribute('data-reach-active') &&
+          !clone.hasAttribute('data-lens-active') &&
+          !clone.hasAttribute('data-lens-flow-count') &&
+          !clone.hasAttribute('data-lens-flow-density') &&
+          !clone.hasAttribute('data-legend-preview-active') &&
+          !clone.hasAttribute('data-relationship-preview-active') &&
+          !clone.hasAttribute('data-relationship-direct-active') &&
+          !clone.hasAttribute('data-intent-trace-active') &&
+          !clone.hasAttribute('data-route-picking') &&
+          !clone.hasAttribute('data-route-active') &&
+          !clone.hasAttribute('data-route-journey') &&
+          !clone.hasAttribute('data-share-route') &&
+          !clone.hasAttribute('data-share-reach') &&
+          !clone.hasAttribute('data-story-active') &&
+          !clone.hasAttribute('data-story-playing') &&
+          !clone.hasAttribute('data-story-beat') &&
+          !clone.hasAttribute('data-story-next') &&
+          !clone.hasAttribute('data-story-follow') &&
+          !clone.hasAttribute('data-chapter-handoff') &&
+          !clone.hasAttribute('data-chapter-anchor') &&
+          !clone.hasAttribute('data-chapter-preview') &&
+          !clone.style.getPropertyValue('transform') &&
+          !clone.style.getPropertyValue('clip-path') &&
+          clone.querySelectorAll('[data-story-overlay], [data-story-carrier-overlay], [data-story-carrier-token], [data-story-step], [data-story-beat-state], [data-story-beat-step], [data-chapter-handoff-overlay], [data-chapter-role], [data-chapter-preview-role], [data-focus-match], [data-focus-selected], [data-reach-match], [data-reach-origin], [data-reach-depth], [data-semantic-lens-overlay], [data-lens-match], [data-lens-selected], [data-lens-peer], [data-legend-bridge], [data-legend-kind], [data-legend-bridge-runtime], [data-legend-count], [data-legend-zero], [data-legend-selected], [data-legend-preview-match], [data-legend-preview-selected], [data-legend-preview-peer], [data-relationship-hit-overlay], [data-relationship-pulse-overlay], [data-relationship-preview], [data-relationship-preview-node], [data-relationship-preview-source], [data-relationship-preview-target], [data-intent-trace-overlay], [data-intent-trace-match], [data-intent-trace-selected], [data-route-probe-overlay], [data-route-journey-overlay], [data-route-match], [data-route-start], [data-route-end], [data-route-step], [data-route-candidate], [data-route-journey-state], [data-route-journey-current], [data-share-route-match], [data-share-route-step], [data-share-route-start], [data-share-route-end], [data-share-route-middle], [data-share-reach-match], [data-share-reach-origin], [data-share-reach-depth], [data-source-evidence-beacon], [data-source-evidence-count], [data-source-evidence-original-label], [data-detail], [data-detail-anchor]').length === 0;
+
+        var vb = svg.viewBox.baseVal;
+        var finiteSvgDimensions = Number.isFinite(vb.x) && Number.isFinite(vb.y) &&
+          Number.isFinite(vb.width) && Number.isFinite(vb.height) && vb.width > 0 && vb.height > 0;
+        var routeStateClean = opts.routeSnapshot
+          ? canonicalStateClean && finiteSvgDimensions && applyRouteSnapshot(clone, opts.routeSnapshot)
+          : null;
+        var reachStateClean = opts.reachSnapshot
+          ? canonicalStateClean && finiteSvgDimensions && !opts.routeSnapshot && applyReachSnapshot(clone, opts.reachSnapshot)
+          : null;
+        // Scale width/height so the browser rasterizes the vectors at target
+        // resolution directly. viewBox stays unchanged so coordinates don't
+        // shift. This is the key to sharp rasters — do NOT scale later via
+        // canvas upscaling.
+        clone.setAttribute('width', vb.width * scale);
+        clone.setAttribute('height', vb.height * scale);
+        clone.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
+
+        // Only the SVG-relevant rules: semantic classes, markers, and the
+        // theme variable blocks. Toolbar/cards/print CSS can never apply
+        // inside a standalone SVG and would only bloat the export.
+        var hostStyle = (function () {
+          var out = [];
+          Array.prototype.forEach.call(document.styleSheets, function (sheet) {
+            var rules;
+            try { rules = sheet.cssRules; } catch (_) { return; } // cross-origin
+            if (!rules) return;
+            Array.prototype.forEach.call(rules, function (rule) {
+              if (rule.type === 7 && /^archify-/.test(rule.name || '')) {
+                out.push(rule.cssText);
+                return;
+              }
+              if (rule.type !== 1) return; // plain style rules only
+              var sel = rule.selectorText || '';
+              if (/(^|,)\s*(svg|:root|\[data-theme|\[data-preset|\.c-|\.t-|\.a-|\.m-)/.test(sel)) {
+                out.push(rule.cssText);
+              }
+            });
+          });
+          return out.join('\n');
+        })();
+
+        // Derive the variable list from the stylesheet so newly added theme
+        // variables can never be missed by the export pipeline again
+        // (--lane-fill/--lane-stroke once were).
+        var varNames = (function () {
+          var seen = {};
+          var names = [];
+          (hostStyle.match(/--[a-zA-Z0-9-]+(?=\s*:)/g) || []).forEach(function (n) {
+            if (!seen[n]) { seen[n] = true; names.push(n); }
+          });
+          return names;
+        })();
+
+        // Resolve the full variable set for a given data-theme via an
+        // off-DOM probe, independent of what the viewer is currently set to.
+        function resolveVars(themeAttr) {
+          var probe = document.createElement('div');
+          probe.setAttribute('data-theme', themeAttr);
+          probe.setAttribute('data-preset', document.documentElement.getAttribute('data-preset') || 'classic');
+          probe.style.cssText = 'position:absolute;width:0;height:0;visibility:hidden;';
+          document.body.appendChild(probe);
+          try {
+            var c = getComputedStyle(probe);
+            return varNames.map(function (n) {
+              return n + ': ' + c.getPropertyValue(n).trim() + ';';
+            }).join(' ');
+          } finally {
+            document.body.removeChild(probe);
+          }
+        }
+
+        // Prepend a local()-only @font-face block for each weight so that the
+        // sandboxed image-rendering context used during PNG/JPEG/WebP export
+        // can find JetBrains Mono if the user has it installed locally, and
+        // falls through cleanly to the monospace stack otherwise. The usual
+        // Google-Fonts <link> in the host document is unreachable from the
+        // serialized SVG, so url()-sourced faces would just hang.
+        var fontFallback = [400, 500, 600, 700].map(function (w) {
+          return "@font-face { font-family: 'JetBrains Mono'; font-weight: " + w +
+                 "; src: local('JetBrains Mono'), local('JetBrainsMono-Regular'); }";
+        }).join('\n');
+
+        var style = document.createElementNS('http://www.w3.org/2000/svg', 'style');
+        var bgRect = document.createElementNS('http://www.w3.org/2000/svg', 'rect');
+        bgRect.setAttribute('width', '100%');
+        bgRect.setAttribute('height', '100%');
+
+        if (autoTheme) {
+          // Dual-theme SVG. Dark is the default (so hosts without
+          // prefers-color-scheme still render), light swaps in via media
+          // query, and svg[data-theme="..."] still lets downstream
+          // consumers force a specific theme.
+          var darkVars = resolveVars('dark');
+          var lightVars = resolveVars('light');
+
+          style.textContent =
+            fontFallback + "\n" +
+            "svg { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, 'DejaVu Sans Mono', 'Liberation Mono', 'Noto Sans Mono CJK SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', monospace; }\n" +
+            hostStyle + "\n" +
+            ":root, svg { " + darkVars + " }\n" +
+            "@media (prefers-color-scheme: light) { :root, svg { " + lightVars + " } }\n" +
+            "svg[data-theme=\"light\"] { " + lightVars + " }\n" +
+            "svg[data-theme=\"dark\"] { " + darkVars + " }\n" +
+            "rect.c-bg-rect { fill: var(--bg); }\n";
+
+          // Don't lock the serialized SVG to the viewer's current theme.
+          clone.removeAttribute('data-theme');
+          // Background follows the CSS variable, not a fixed color, so it
+          // swaps with the media query.
+          bgRect.setAttribute('class', 'c-bg-rect');
+        } else {
+          // Raster path: lock to the viewer's current theme.
+          var theme = document.documentElement.getAttribute('data-theme') || 'dark';
+          var themeHost = document.querySelector('[data-theme="' + theme + '"]') || document.documentElement;
+          var computed = getComputedStyle(themeHost);
+          var vars = varNames.map(function (n) {
+            return n + ': ' + computed.getPropertyValue(n).trim() + ';';
+          }).join(' ');
+
+          // IMPORTANT: inject the resolved variables AFTER hostStyle,
+          // otherwise hostStyle's ":root, [data-theme=\"dark\"] { ... }" rule
+          // overrides our chosen theme via later-in-cascade equal-specificity.
+          // Keep this order.
+          style.textContent =
+            fontFallback + "\n" +
+            "svg { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, 'DejaVu Sans Mono', 'Liberation Mono', 'Noto Sans Mono CJK SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', monospace; }\n" +
+            hostStyle + "\n" +
+            ":root, svg { " + vars + " }\n";
+
+          bgRect.setAttribute('fill', computed.getPropertyValue('--bg').trim() || '#ffffff');
+        }
+
+        if (opts.routeSnapshot) {
+          style.textContent += "\nsvg[data-share-route] [data-node-id], svg[data-share-route] [data-edge-from] { opacity: 0.18; }\n" +
+            "svg[data-share-route] [data-share-route-match] { opacity: 1; }\n" +
+            "svg[data-share-route] [data-share-route-start] > :is(rect, circle, polygon):not(.c-mask) { stroke-width: 3; stroke-dasharray: 5 3; }\n" +
+            "svg[data-share-route] [data-share-route-middle] > :is(rect, circle, polygon):not(.c-mask) { stroke-width: 2.2; }\n" +
+            "svg[data-share-route] [data-share-route-end] > :is(rect, circle, polygon):not(.c-mask) { stroke-width: 3.4; stroke-dasharray: 1 0; }\n";
+        }
+        if (opts.reachSnapshot) {
+          style.textContent += "\nsvg[data-share-reach] [data-node-id], svg[data-share-reach] [data-edge-from] { opacity: 0.14; }\n" +
+            "svg[data-share-reach] [data-share-reach-match] { opacity: 1; }\n" +
+            "svg[data-share-reach] [data-edge-from][data-share-reach-match] { stroke-width: 1.55; }\n" +
+            "svg[data-share-reach=\"upstream\"] [data-share-reach-origin] > :is(rect, circle, polygon):not(.c-mask) { stroke: var(--database-stroke); stroke-width: 3.4; stroke-dasharray: 5 3; }\n" +
+            "svg[data-share-reach=\"downstream\"] [data-share-reach-origin] > :is(rect, circle, polygon):not(.c-mask) { stroke: var(--backend-stroke); stroke-width: 3.4; stroke-dasharray: 1 0; }\n" +
+            "svg[data-preset=\"blueprint\"][data-share-reach] [data-share-reach-origin], svg[data-preset=\"blueprint\"][data-share-reach] [data-edge-from][data-share-reach-match] { filter: none; }\n";
+        }
+
+        clone.insertBefore(style, clone.firstChild);
+        clone.insertBefore(bgRect, style.nextSibling);
+
+        return {
+          svgString: new XMLSerializer().serializeToString(clone),
+          width: vb.width * scale,
+          height: vb.height * scale,
+          canonicalStateClean: canonicalStateClean,
+          routeStateClean: routeStateClean,
+          reachStateClean: reachStateClean
+        };
+      }
+
+      function download(blob, filename) {
+        var url = URL.createObjectURL(blob);
+        var a = document.createElement('a');
+        a.href = url;
+        a.download = filename;
+        document.body.appendChild(a);
+        a.click();
+        a.remove();
+        setTimeout(function () { URL.revokeObjectURL(url); }, 1000);
+      }
+
+      // Conservative upper bound on total canvas pixels. Older Safari on iOS
+      // silently produces a blank canvas above ~16 Mpx; Chrome / Firefox /
+      // desktop Safari are far higher but start failing on memory-constrained
+      // devices. We pick the largest integer scale in {4,3,2,1} whose target
+      // pixel count fits under this cap.
+      var MAX_CANVAS_PIXELS = 16 * 1024 * 1024;
+
+      function pickSafeScale(vbW, vbH) {
+        for (var s = RASTER_SCALE; s >= 1; s--) {
+          if (vbW * s * vbH * s <= MAX_CANVAS_PIXELS) return s;
+        }
+        return 1;
+      }
+
+      function rasterize(format) {
+        // Serialize at a safe scale (RASTER_SCALE=4 by default, reduced if the
+        // resulting canvas would exceed MAX_CANVAS_PIXELS). The SVG itself is
+        // rasterized at target resolution natively; drawImage draws at natural
+        // size — no upsampling blur.
+        var svg = document.querySelector('.diagram-container svg');
+        var vb = svg.viewBox.baseVal;
+        var scale = pickSafeScale(vb.width, vb.height);
+        var data = serializeSvg(scale);
+        var svgBlob = new Blob([data.svgString], { type: 'image/svg+xml;charset=utf-8' });
+        var svgUrl = URL.createObjectURL(svgBlob);
+
+        return new Promise(function (resolve, reject) {
+          var img = new Image();
+          img.onload = function () {
+            try {
+              var canvas = document.createElement('canvas');
+              canvas.width = data.width;
+              canvas.height = data.height;
+              var ctx = canvas2dOrThrow(canvas, format);
+              if (format === 'jpeg') {
+                ctx.fillStyle = currentBg();
+                ctx.fillRect(0, 0, canvas.width, canvas.height);
+              }
+              // Draw at natural size — SVG was already rasterized at target res.
+              ctx.drawImage(img, 0, 0);
+              URL.revokeObjectURL(svgUrl);
+              var mime = format === 'jpeg' ? 'image/jpeg' :
+                         format === 'webp' ? 'image/webp' : 'image/png';
+              var quality = format === 'png' ? undefined : 0.95;
+              canvas.toBlob(function (blob) {
+                if (!blob) reject(exportError('viewer.export.error.toBlobNull', { label: format }));
+                else resolve(blob);
+              }, mime, quality);
+            } catch (error) {
+              URL.revokeObjectURL(svgUrl);
+              reject(error);
+            }
+          };
+          img.onerror = function (e) {
+            URL.revokeObjectURL(svgUrl);
+            reject(e);
+          };
+          img.src = svgUrl;
+        });
+      }
+
+      function fitCanvasText(ctx, text, maxWidth, startSize, minSize, weight) {
+        var value = String(text || '').trim();
+        var size = startSize;
+        var family = "'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace";
+        while (size > minSize) {
+          ctx.font = (weight || '600') + ' ' + size + 'px ' + family;
+          if (ctx.measureText(value).width <= maxWidth) return value;
+          size -= 1;
+        }
+        ctx.font = (weight || '600') + ' ' + minSize + 'px ' + family;
+        if (ctx.measureText(value).width <= maxWidth) return value;
+        var suffix = '\u2026';
+        while (value.length > 1 && ctx.measureText(value + suffix).width > maxWidth) {
+          value = value.slice(0, -1);
+        }
+        return value + suffix;
+      }
+
+      function canvas2dOrThrow(canvas, label) {
+        if (!canvas || typeof canvas.getContext !== 'function') {
+          throw exportError('viewer.export.error.canvasUnavailable', { label: label });
+        }
+        var ctx = canvas.getContext('2d');
+        if (!ctx) throw exportError('viewer.export.error.contextUnavailable', { label: label });
+        if (typeof canvas.toBlob !== 'function') throw exportError('viewer.export.error.toBlobUnavailable', { label: label });
+        return ctx;
+      }
+
+      function renderShareCard(options) {
+        options = options || {};
+        var routeSnapshot = options.routeSnapshot || null;
+        var reachSnapshot = options.reachSnapshot || null;
+        if (routeSnapshot && reachSnapshot) return Promise.reject(exportError('viewer.export.error.variantsCombined'));
+        var svg = document.querySelector('.diagram-container svg');
+        var vb = svg.viewBox.baseVal;
+        var sourceScale = Math.min(2, pickSafeScale(vb.width, vb.height));
+        var data = serializeSvg(sourceScale, { routeSnapshot: routeSnapshot, reachSnapshot: reachSnapshot });
+        if (!data.canonicalStateClean) return Promise.reject(exportError('viewer.export.error.viewerState'));
+        if (routeSnapshot && !data.routeStateClean) return Promise.reject(exportError('viewer.export.error.routeState'));
+        if (reachSnapshot && !data.reachStateClean) return Promise.reject(exportError('viewer.export.error.reachState'));
+        var svgBlob = new Blob([data.svgString], { type: 'image/svg+xml;charset=utf-8' });
+        var svgUrl = URL.createObjectURL(svgBlob);
+
+        return new Promise(function (resolve, reject) {
+          var img = new Image();
+          img.onload = function () {
+            try {
+              var canvas = document.createElement('canvas');
+              canvas.width = SHARE_CARD_WIDTH;
+              canvas.height = SHARE_CARD_HEIGHT;
+              var ctx = canvas2dOrThrow(canvas, viewerText('viewer.export.shareCard'));
+              var computed = getComputedStyle(document.documentElement);
+              var bg = computed.getPropertyValue('--bg').trim() || currentBg();
+              var text = computed.getPropertyValue('--text').trim() || '#ffffff';
+              var muted = computed.getPropertyValue('--text-muted').trim() || '#94a3b8';
+              var border = computed.getPropertyValue('--panel-border').trim() || '#334155';
+              var accentProperty = reachSnapshot
+                ? (reachSnapshot.direction === 'upstream' ? '--database-stroke' : '--backend-stroke')
+                : '--frontend-stroke';
+              var accent = computed.getPropertyValue(accentProperty).trim() || '#22d3ee';
+              var titleNode = document.querySelector('.header h1');
+              var subtitleNode = document.querySelector('.header .subtitle');
+              var title = titleNode ? titleNode.textContent : document.title;
+              var directionLabel = reachSnapshot
+                ? viewerText('viewer.export.direction.' + reachSnapshot.direction)
+                : '';
+              var subtitle = routeSnapshot
+                ? viewerCount('viewer.export.card.routeSummary', routeSnapshot.hops, {
+                    source: routeSnapshot.source.label,
+                    target: routeSnapshot.target.label
+                  })
+                : reachSnapshot
+                  ? viewerText('viewer.export.card.reachSummary', {
+                      direction: directionLabel,
+                      origin: reachSnapshot.origin.label,
+                      nodes: viewerCount('viewer.export.card.node', reachSnapshot.nodeIds.length - 1),
+                      links: viewerCount('viewer.export.card.link', reachSnapshot.edges.length),
+                      hops: viewerCount('viewer.export.card.hop', reachSnapshot.maxDepth)
+                    })
+                  : subtitleNode ? subtitleNode.textContent : '';
+              var preset = document.documentElement.getAttribute('data-preset') || 'classic';
+              var theme = document.documentElement.getAttribute('data-theme') || 'dark';
+              var presetKey = preset === 'signal-flow'
+                ? 'viewer.preset.flow.short'
+                : 'viewer.preset.' + preset;
+              var presetLabel = viewerText(presetKey).toUpperCase();
+              var themeLabel = viewerText('viewer.theme.' + theme).toUpperCase();
+              var cardLabel = routeSnapshot
+                ? viewerText('viewer.export.card.routeBadge', {
+                    hops: viewerCount('viewer.export.card.hop', routeSnapshot.hops).toUpperCase()
+                  })
+                : reachSnapshot
+                  ? viewerText('viewer.export.card.reachBadge', { direction: directionLabel.toUpperCase() })
+                  : viewerText('viewer.export.card.defaultBadge', { preset: presetLabel, theme: themeLabel });
+
+              ctx.fillStyle = bg;
+              ctx.fillRect(0, 0, SHARE_CARD_WIDTH, SHARE_CARD_HEIGHT);
+
+              ctx.fillStyle = accent;
+              ctx.fillRect(SHARE_CARD_PADDING, 27, 42, 3);
+
+              ctx.textBaseline = 'alphabetic';
+              ctx.fillStyle = text;
+              var fittedTitle = fitCanvasText(ctx, title, SHARE_CARD_WIDTH - SHARE_CARD_PADDING * 2 - 330, 29, 18, '700');
+              ctx.fillText(fittedTitle, SHARE_CARD_PADDING, 62);
+
+              ctx.fillStyle = muted;
+              var fittedSubtitle = fitCanvasText(ctx, subtitle, SHARE_CARD_WIDTH - SHARE_CARD_PADDING * 2 - 280, 13, 11, '500');
+              ctx.fillText(fittedSubtitle, SHARE_CARD_PADDING, 87);
+
+              ctx.font = "600 12px 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace";
+              ctx.textAlign = 'right';
+              ctx.fillStyle = accent;
+              ctx.fillText(cardLabel, SHARE_CARD_WIDTH - SHARE_CARD_PADDING, 50);
+              ctx.textAlign = 'left';
+
+              var availableWidth = SHARE_CARD_WIDTH - SHARE_CARD_PADDING * 2;
+              var availableHeight = SHARE_CARD_HEIGHT - SHARE_CARD_HEADER - SHARE_CARD_PADDING;
+              var fit = Math.min(availableWidth / data.width, availableHeight / data.height);
+              var drawWidth = data.width * fit;
+              var drawHeight = data.height * fit;
+              var drawX = SHARE_CARD_PADDING + (availableWidth - drawWidth) / 2;
+              var drawY = SHARE_CARD_HEADER + (availableHeight - drawHeight) / 2;
+
+              ctx.strokeStyle = border;
+              ctx.lineWidth = 1;
+              ctx.strokeRect(drawX - 0.5, drawY - 0.5, drawWidth + 1, drawHeight + 1);
+              ctx.drawImage(img, drawX, drawY, drawWidth, drawHeight);
+              URL.revokeObjectURL(svgUrl);
+
+              canvas.toBlob(function (blob) {
+                if (!blob) reject(exportError('viewer.export.error.toBlobNull', { label: viewerText('viewer.export.shareCard') }));
+                else resolve(blob);
+              }, 'image/png');
+            } catch (error) {
+              URL.revokeObjectURL(svgUrl);
+              reject(error);
+            }
+          };
+          img.onerror = function (e) {
+            URL.revokeObjectURL(svgUrl);
+            reject(e);
+          };
+          img.src = svgUrl;
+        });
+      }
+
+      function rasterizeShareCard(options) {
+        options = options || {};
+        if (!options.variant) return renderShareCard();
+        if (options.variant !== 'route' && options.variant !== 'reach') {
+          return Promise.reject(exportError('viewer.export.unknownVariant', { variant: options.variant }));
+        }
+        if (options.variant === 'route') {
+          var routeSnapshot = Archify.routeProbe && Archify.routeProbe.exportSnapshot();
+          if (!routeSnapshot) return Promise.reject(exportError('viewer.export.routeRequired'));
+          return renderShareCard({ routeSnapshot: routeSnapshot });
+        }
+        var snapshot = Archify.focus && typeof Archify.focus.reachabilitySnapshot === 'function'
+          ? Archify.focus.reachabilitySnapshot()
+          : null;
+        if (!snapshot) return Promise.reject(exportError('viewer.export.reachRequired'));
+        return renderShareCard({ reachSnapshot: snapshot });
+      }
+
+      function motionMimeType() {
+        if (typeof MediaRecorder === 'undefined') return '';
+        var candidates = [
+          'video/webm;codecs=vp9',
+          'video/webm;codecs=vp8',
+          'video/webm'
+        ];
+        for (var i = 0; i < candidates.length; i++) {
+          if (!MediaRecorder.isTypeSupported || MediaRecorder.isTypeSupported(candidates[i])) return candidates[i];
+        }
+        return '';
+      }
+
+      function canRecordMotion() {
+        var svg = document.querySelector('.diagram-container svg');
+        return !!(svg && svg.getAttribute('data-animation') === 'trace' &&
+          typeof MediaRecorder !== 'undefined' && motionMimeType() &&
+          typeof HTMLCanvasElement !== 'undefined' &&
+          typeof HTMLCanvasElement.prototype.captureStream === 'function');
+      }
+
+      // Record the live CSS animation without Puppeteer, ffmpeg, or a network
+      // dependency. SVG files loaded through Image are commonly rasterized as
+      // one cached bitmap, so repeatedly drawing that Image does not reliably
+      // advance its CSS animation. Keep one crisp static SVG background, then
+      // render an explicit time-varying signal scene over the real authored
+      // relationship geometry on every captured canvas frame.
+      function recordWebm(options) {
+        options = options || {};
+        if (!canRecordMotion()) {
+          return Promise.reject(exportError('viewer.export.error.webmRequirements'));
+        }
+        var duration = Math.max(250, Number(options.duration) || MOTION_DURATION);
+        var fps = Math.max(1, Number(options.fps) || MOTION_FPS);
+        var svg = document.querySelector('.diagram-container svg');
+        var vb = svg.viewBox.baseVal;
+        var scale = Math.min(1, 1280 / vb.width);
+        var data = serializeSvg(scale);
+        var sourceUrl = URL.createObjectURL(new Blob([data.svgString], { type: 'image/svg+xml;charset=utf-8' }));
+
+        function createMotionScene(root) {
+          var rootMatrix = root.getCTM ? root.getCTM() : null;
+
+          function pointInRoot(element, point) {
+            if (!rootMatrix || !element.getCTM || !point.matrixTransform) return { x: point.x, y: point.y };
+            try {
+              var elementMatrix = element.getCTM();
+              if (!elementMatrix) return { x: point.x, y: point.y };
+              var mapped = point.matrixTransform(rootMatrix.inverse().multiply(elementMatrix));
+              return { x: mapped.x, y: mapped.y };
+            } catch (_) {
+              return { x: point.x, y: point.y };
+            }
+          }
+
+          function samplesFor(element) {
+            if (typeof element.getTotalLength !== 'function' || typeof element.getPointAtLength !== 'function') return [];
+            var length;
+            try { length = element.getTotalLength(); } catch (_) { return []; }
+            if (!Number.isFinite(length) || length <= 0) return [];
+            var count = Math.max(12, Math.min(72, Math.ceil(length / 12)));
+            var points = [];
+            for (var i = 0; i <= count; i++) {
+              points.push(pointInRoot(element, element.getPointAtLength(length * i / count)));
+            }
+            return points;
+          }
+
+          function authoredStep(element, fallback) {
+            var raw = element.style.getPropertyValue('--step') || getComputedStyle(element).getPropertyValue('--step');
+            var value = Number(raw);
+            return Number.isFinite(value) ? value : fallback;
+          }
+
+          var edges = Array.prototype.slice.call(root.querySelectorAll('[data-animate="edge"]')).map(function (element, index) {
+            var computed = getComputedStyle(element);
+            return {
+              points: samplesFor(element),
+              color: computed.stroke && computed.stroke !== 'none' ? computed.stroke : '#22d3ee',
+              width: Math.max(1.5, parseFloat(computed.strokeWidth) || 1.5),
+              delay: Math.min(12, authoredStep(element, index)) * 0.16
+            };
+          }).filter(function (edge) { return edge.points.length > 1; });
+
+          var nodes = Array.prototype.slice.call(root.querySelectorAll('[data-node-id][data-animate="node"]')).map(function (element, index) {
+            var box;
+            try { box = element.getBBox(); } catch (_) { return null; }
+            var painted = element.querySelector('[class*="c-"]') || element;
+            var computed = getComputedStyle(painted);
+            return {
+              x: box.x,
+              y: box.y,
+              width: box.width,
+              height: box.height,
+              color: computed.stroke && computed.stroke !== 'none' ? computed.stroke : '#22d3ee',
+              delay: Math.min(12, authoredStep(element, index)) * 0.16
+            };
+          }).filter(Boolean);
+
+          return { edges: edges, nodes: nodes, x: vb.x, y: vb.y, width: vb.width, height: vb.height };
+        }
+
+        function pointAlong(points, progress) {
+          var scaled = Math.max(0, Math.min(1, progress)) * (points.length - 1);
+          var index = Math.min(points.length - 2, Math.floor(scaled));
+          var mix = scaled - index;
+          return {
+            x: points[index].x + (points[index + 1].x - points[index].x) * mix,
+            y: points[index].y + (points[index + 1].y - points[index].y) * mix
+          };
+        }
+
+        function roundedRectPath(ctx, x, y, width, height, radius) {
+          var r = Math.max(0, Math.min(radius, width / 2, height / 2));
+          ctx.beginPath();
+          ctx.moveTo(x + r, y);
+          ctx.lineTo(x + width - r, y);
+          ctx.quadraticCurveTo(x + width, y, x + width, y + r);
+          ctx.lineTo(x + width, y + height - r);
+          ctx.quadraticCurveTo(x + width, y + height, x + width - r, y + height);
+          ctx.lineTo(x + r, y + height);
+          ctx.quadraticCurveTo(x, y + height, x, y + height - r);
+          ctx.lineTo(x, y + r);
+          ctx.quadraticCurveTo(x, y, x + r, y);
+          ctx.closePath();
+        }
+
+        function drawMotionFrame(ctx, backgroundImage, motionScene, elapsed) {
+          ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
+          ctx.drawImage(backgroundImage, 0, 0, ctx.canvas.width, ctx.canvas.height);
+          ctx.save();
+          ctx.scale(ctx.canvas.width / motionScene.width, ctx.canvas.height / motionScene.height);
+          ctx.translate(-motionScene.x, -motionScene.y);
+
+          motionScene.edges.forEach(function (edge) {
+            var duration = 1.75;
+            var progress = (elapsed - edge.delay) / duration;
+            if (progress < 0 || progress > 1) return;
+            var head = Math.max(0, Math.min(1, progress));
+            var tail = Math.max(0, head - 0.24);
+            var opacity = Math.sin(Math.PI * Math.min(1, progress));
+
+            ctx.save();
+            ctx.strokeStyle = edge.color;
+            ctx.fillStyle = edge.color;
+            ctx.lineCap = 'round';
+            ctx.lineJoin = 'round';
+            ctx.lineWidth = Math.max(3.2, edge.width * 2.2);
+            ctx.globalAlpha = 0.42 + opacity * 0.5;
+            ctx.shadowColor = edge.color;
+            ctx.shadowBlur = 10;
+            ctx.beginPath();
+            for (var i = 0; i <= 14; i++) {
+              var trailPoint = pointAlong(edge.points, tail + (head - tail) * i / 14);
+              if (i === 0) ctx.moveTo(trailPoint.x, trailPoint.y);
+              else ctx.lineTo(trailPoint.x, trailPoint.y);
+            }
+            ctx.stroke();
+
+            var point = pointAlong(edge.points, head);
+            ctx.globalAlpha = 0.95;
+            ctx.beginPath();
+            ctx.arc(point.x, point.y, 4.8, 0, Math.PI * 2);
+            ctx.fill();
+            ctx.restore();
+          });
+
+          motionScene.nodes.forEach(function (node) {
+            var progress = (elapsed - node.delay) / 2.6;
+            if (progress < 0 || progress > 1) return;
+            var pulse = Math.sin(Math.PI * progress);
+            if (pulse <= 0.02) return;
+            ctx.save();
+            ctx.strokeStyle = node.color;
+            ctx.lineWidth = 1.4 + pulse * 1.8;
+            ctx.globalAlpha = pulse * 0.5;
+            ctx.shadowColor = node.color;
+            ctx.shadowBlur = 12 * pulse;
+            var inset = 2 + pulse * 3;
+            roundedRectPath(ctx, node.x - inset, node.y - inset, node.width + inset * 2, node.height + inset * 2, 8);
+            ctx.stroke();
+            ctx.restore();
+          });
+
+          ctx.restore();
+        }
+
+        var motionScene = createMotionScene(svg);
+
+        return new Promise(function (resolve, reject) {
+          var backgroundImage = new Image();
+          backgroundImage.onload = function () {
+            var canvas = document.createElement('canvas');
+            canvas.width = Math.max(2, Math.round(data.width / 2) * 2);
+            canvas.height = Math.max(2, Math.round(data.height / 2) * 2);
+            var ctx = canvas.getContext('2d');
+            var stream = canvas.captureStream(fps);
+            var mime = motionMimeType();
+            var recorder;
+            try {
+              recorder = new MediaRecorder(stream, { mimeType: mime, videoBitsPerSecond: 6000000 });
+            } catch (err) {
+              URL.revokeObjectURL(sourceUrl);
+              stream.getTracks().forEach(function (track) { track.stop(); });
+              reject(err);
+              return;
+            }
+            var chunks = [];
+            var raf = 0;
+            var stopped = false;
+            var startedAt = performance.now();
+            function cleanup() {
+              if (stopped) return;
+              stopped = true;
+              cancelAnimationFrame(raf);
+              URL.revokeObjectURL(sourceUrl);
+              stream.getTracks().forEach(function (track) { track.stop(); });
+            }
+            function draw(now) {
+              var elapsed = Math.max(0, ((Number(now) || performance.now()) - startedAt) / 1000);
+              drawMotionFrame(ctx, backgroundImage, motionScene, elapsed);
+              raf = requestAnimationFrame(draw);
+            }
+            recorder.ondataavailable = function (event) {
+              if (event.data && event.data.size) chunks.push(event.data);
+            };
+            recorder.onerror = function (event) {
+              cleanup();
+              reject(event.error || exportError('viewer.export.error.mediaRecorder'));
+            };
+            recorder.onstop = function () {
+              cleanup();
+              var blob = new Blob(chunks, { type: recorder.mimeType || mime });
+              if (!blob.size) reject(exportError('viewer.export.error.emptyWebm'));
+              else resolve(blob);
+            };
+            drawMotionFrame(ctx, backgroundImage, motionScene, 0);
+            recorder.start(250);
+            startedAt = performance.now();
+            raf = requestAnimationFrame(draw);
+            setTimeout(function () {
+              if (recorder.state === 'inactive') return;
+              // Chromium normally emits the final chunk during stop(), but
+              // some embedded browser shells need an explicit encoder flush
+              // first. Keep the short grace window bounded and harmless for
+              // browsers that already delivered timeslice chunks.
+              try { recorder.requestData(); } catch (_) {}
+              setTimeout(function () {
+                if (recorder.state !== 'inactive') recorder.stop();
+              }, 120);
+            }, duration);
+          };
+          backgroundImage.onerror = function () {
+            URL.revokeObjectURL(sourceUrl);
+            reject(exportError('viewer.export.error.webmBackground'));
+          };
+          backgroundImage.src = sourceUrl;
+        });
+      }
+
+      var menu = document.getElementById('export-menu');
+      var btn = document.getElementById('btn-export');
+      var routeShareItem = menu.querySelector('button[data-action="route-share-card"]');
+      var reachShareItem = menu.querySelector('button[data-action="reach-share-card"]');
+      var items = function () {
+        return Array.prototype.slice.call(menu.querySelectorAll('button[role="menuitem"]'));
+      };
+
+      function syncRouteShareItem() {
+        var snapshot = Archify.routeProbe && typeof Archify.routeProbe.exportSnapshot === 'function'
+          ? Archify.routeProbe.exportSnapshot()
+          : null;
+        routeShareItem.hidden = !snapshot;
+        routeShareItem.disabled = !snapshot;
+        return snapshot;
+      }
+
+      function syncReachShareItem() {
+        var snapshot = Archify.focus && typeof Archify.focus.reachabilitySnapshot === 'function'
+          ? Archify.focus.reachabilitySnapshot()
+          : null;
+        reachShareItem.hidden = !snapshot;
+        reachShareItem.disabled = !snapshot;
+        return snapshot;
+      }
+
+      // ---- Clipboard support ----------------------------------------------
+      function canCopyImage() {
+        return typeof ClipboardItem !== 'undefined' &&
+               navigator.clipboard &&
+               typeof navigator.clipboard.write === 'function';
+      }
+
+      // ---- Raster format detection ----------------------------------------
+      // canvas.toBlob('image/webp') silently returns a PNG on browsers without
+      // WebP encoding (older Safari), so detect explicitly.
+      function supports(format) {
+        if (format === 'share-card') return true;
+        if (format === 'svg' || format === 'png') return true;
+        if (format === 'webm') return canRecordMotion();
+        var mime = format === 'jpeg' ? 'image/jpeg' : 'image/webp';
+        try {
+          var c = document.createElement('canvas');
+          c.width = c.height = 2;
+          return c.toDataURL(mime).indexOf('data:' + mime) === 0;
+        } catch (_) { return false; }
+      }
+
+      // Gray out unsupported items.
+      items().forEach(function (it) {
+        if (it.dataset.format && !supports(it.dataset.format)) {
+          it.disabled = true;
+          it.title = viewerText('viewer.export.unsupported');
+        }
+        if ((it.dataset.action === 'copy' || it.dataset.action === 'copy-share-card') && !canCopyImage()) {
+          it.disabled = true;
+          it.title = viewerText('viewer.export.clipboardUnsupported');
+        }
+      });
+
+      // ---- Toast ----------------------------------------------------------
+      // A live region only announces CHANGES to an existing node, so the toast
+      // element is created once up front and updated in place.
+      var toastEl = document.createElement('div');
+      toastEl.className = 'archify-toast';
+      toastEl.setAttribute('role', 'status');
+      document.body.appendChild(toastEl);
+      var toastTimer = null;
+
+      function toast(msg) {
+        toastEl.textContent = '';
+        requestAnimationFrame(function () {
+          toastEl.textContent = msg;
+          toastEl.classList.add('show');
+        });
+        clearTimeout(toastTimer);
+        toastTimer = setTimeout(function () { toastEl.classList.remove('show'); }, 1500);
+      }
+
+      function open(focusLast) {
+        if (Archify.preset && Archify.preset.isOpen()) Archify.preset.close(false);
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (Archify.semanticLens && Archify.semanticLens.isOpen()) Archify.semanticLens.close({ restoreFocus: false });
+        syncRouteShareItem();
+        syncReachShareItem();
+        menu.classList.add('open');
+        btn.setAttribute('aria-expanded', 'true');
+        var available = items().filter(function (i) { return !i.hidden && !i.disabled; });
+        var target = focusLast ? available[available.length - 1] : available[0];
+        if (target) target.focus();
+      }
+      function close(focusTrigger) {
+        menu.classList.remove('open');
+        btn.setAttribute('aria-expanded', 'false');
+        if (focusTrigger) btn.focus();
+      }
+      function isOpen() { return menu.classList.contains('open'); }
+
+      btn.addEventListener('click', function (e) {
+        e.stopPropagation();
+        if (isOpen()) close(false);
+        else open();
+      });
+      // APG menu-button pattern: ArrowDown/ArrowUp on the trigger opens the menu.
+      btn.addEventListener('keydown', function (e) {
+        if (e.key === 'ArrowDown' || e.key === 'ArrowUp') {
+          e.preventDefault();
+          if (!isOpen()) open(e.key === 'ArrowUp');
+        }
+      });
+      document.addEventListener('click', function (e) {
+        if (!menu.contains(e.target) && e.target !== btn) close(false);
+      });
+
+      // Keyboard navigation inside the menu.
+      //   Menu items: Up/Down, Home/End.
+      //   Esc closes + returns focus to trigger; Tab closes.
+      menu.addEventListener('keydown', function (e) {
+        if (e.key === 'Escape') { e.preventDefault(); close(true); return; }
+        if (e.key === 'Tab')    { close(false); return; }
+
+        var available = items().filter(function (i) { return !i.hidden && !i.disabled; });
+        var current = available.indexOf(document.activeElement);
+        switch (e.key) {
+          case 'ArrowDown':
+            e.preventDefault();
+            if (available.length) available[(current + 1 + available.length) % available.length].focus();
+            break;
+          case 'ArrowUp':
+            e.preventDefault();
+            if (available.length) available[(current - 1 + available.length) % available.length].focus();
+            break;
+          case 'Home':
+            e.preventDefault();
+            if (available[0]) available[0].focus();
+            break;
+          case 'End':
+            e.preventDefault();
+            if (available.length) available[available.length - 1].focus();
+            break;
+        }
+      });
+
+      function runExport(format) {
+        var base = diagramFilename();
+        close(true);
+        clearExportReceipt();
+        if (format === 'webm') toast(viewerText('viewer.export.recording'));
+        return (format === 'share-card'
+          ? rasterizeShareCard().then(function (blob) {
+              recordExportReceipt('share-card', blob, true, { width: SHARE_CARD_WIDTH, height: SHARE_CARD_HEIGHT });
+              download(blob, base + '-share-card.png');
+              toast(viewerText('viewer.export.downloadedShare'));
+            })
+          : format === 'svg'
+          ? Promise.resolve(serializeSvg(1, { autoTheme: true })).then(function (d) {
+              var blob = new Blob([d.svgString], { type: 'image/svg+xml;charset=utf-8' });
+              recordExportReceipt('svg', blob, d.canonicalStateClean);
+              download(blob, base + '.svg');
+            })
+          : format === 'webm'
+            ? recordWebm().then(function (blob) {
+                document.documentElement.setAttribute('data-last-motion-bytes', String(blob.size));
+                recordExportReceipt('webm', blob, true);
+                download(blob, base + '.webm');
+                toast(viewerText('viewer.export.downloadedWebm'));
+              })
+          : rasterize(format).then(function (blob) {
+              recordExportReceipt(format, blob, true);
+              download(blob, base + '.' + format);
+            })
+        ).catch(function (err) {
+          console.error(err);
+          var technicalMessage = err && err.message ? err.message : format;
+          var message = exportMessage(err);
+          document.documentElement.setAttribute('data-last-export-error-format', format);
+          document.documentElement.setAttribute('data-last-export-error', technicalMessage);
+          if (format === 'webm') {
+            var motionItem = menu.querySelector('button[data-format="webm"]');
+            if (motionItem) {
+              motionItem.disabled = true;
+              motionItem.title = viewerText('viewer.export.motionUnavailable');
+              motionItem.style.opacity = '0.5';
+            }
+            toast(viewerText('viewer.export.webmUnavailable'));
+            return;
+          }
+          alert(viewerText('viewer.export.failed', { message: message }));
+        });
+      }
+
+      function runRouteShareCard() {
+        close(false);
+        clearExportReceipt();
+        var snapshot = Archify.routeProbe && Archify.routeProbe.exportSnapshot();
+        var blobPromise = snapshot
+          ? renderShareCard({ routeSnapshot: snapshot })
+          : Promise.reject(exportError('viewer.export.routeRequired'));
+        return blobPromise.then(function (blob) {
+          recordExportReceipt('share-card', blob, false, { width: SHARE_CARD_WIDTH, height: SHARE_CARD_HEIGHT }, 'route', true);
+          download(blob, diagramFilename() + '-route-share-card.png');
+          toast(viewerText('viewer.export.downloadedRoute'));
+          return blob;
+        }).catch(function (err) {
+          console.error(err);
+          var technicalMessage = err && err.message ? err.message : 'share-card';
+          var message = exportMessage(err);
+          document.documentElement.setAttribute('data-last-export-error-format', 'share-card');
+          document.documentElement.setAttribute('data-last-export-error', technicalMessage);
+          alert(viewerText('viewer.export.routeFailed', { message: message }));
+        });
+      }
+
+      function runReachShareCard() {
+        close(false);
+        clearExportReceipt();
+        var snapshot = Archify.focus && typeof Archify.focus.reachabilitySnapshot === 'function'
+          ? Archify.focus.reachabilitySnapshot()
+          : null;
+        var blobPromise = snapshot
+          ? renderShareCard({ reachSnapshot: snapshot })
+          : Promise.reject(exportError('viewer.export.reachRequired'));
+        return blobPromise.then(function (blob) {
+          recordExportReceipt('share-card', blob, false, { width: SHARE_CARD_WIDTH, height: SHARE_CARD_HEIGHT }, 'reach', false, true);
+          download(blob, diagramFilename() + '-' + snapshot.direction + '-reach-share-card.png');
+          toast(viewerText('viewer.export.downloadedReach'));
+          return blob;
+        }).catch(function (err) {
+          console.error(err);
+          var technicalMessage = err && err.message ? err.message : 'share-card';
+          var message = exportMessage(err);
+          document.documentElement.setAttribute('data-last-export-error-format', 'share-card');
+          document.documentElement.setAttribute('data-last-export-error', technicalMessage);
+          alert(viewerText('viewer.export.reachFailed', { message: message }));
+        });
+      }
+
+      // A compact, machine-readable receipt for local QA and generated proof
+      // galleries. It exposes no diagram contents, only the completed format,
+      // byte count, and whether temporary viewer state was excluded.
+      function recordExportReceipt(format, blob, canonical, dimensions, variant, routeStateClean, reachStateClean) {
+        document.documentElement.setAttribute('data-last-export-format', format);
+        document.documentElement.setAttribute('data-last-export-bytes', String(blob.size));
+        document.documentElement.setAttribute('data-last-export-canonical', canonical ? 'true' : 'false');
+        if (variant) {
+          document.documentElement.setAttribute('data-last-export-variant', variant);
+        } else {
+          document.documentElement.removeAttribute('data-last-export-variant');
+        }
+        if (routeStateClean === true) {
+          document.documentElement.setAttribute('data-last-export-route-state-clean', 'true');
+        } else {
+          document.documentElement.removeAttribute('data-last-export-route-state-clean');
+        }
+        if (reachStateClean === true) {
+          document.documentElement.setAttribute('data-last-export-reach-state-clean', 'true');
+        } else {
+          document.documentElement.removeAttribute('data-last-export-reach-state-clean');
+        }
+        if (dimensions) {
+          document.documentElement.setAttribute('data-last-export-width', String(dimensions.width));
+          document.documentElement.setAttribute('data-last-export-height', String(dimensions.height));
+        } else {
+          document.documentElement.removeAttribute('data-last-export-width');
+          document.documentElement.removeAttribute('data-last-export-height');
+        }
+      }
+
+      function clearExportReceipt() {
+        document.documentElement.removeAttribute('data-last-export-format');
+        document.documentElement.removeAttribute('data-last-export-bytes');
+        document.documentElement.removeAttribute('data-last-export-canonical');
+        document.documentElement.removeAttribute('data-last-export-width');
+        document.documentElement.removeAttribute('data-last-export-height');
+        document.documentElement.removeAttribute('data-last-export-variant');
+        document.documentElement.removeAttribute('data-last-export-route-state-clean');
+        document.documentElement.removeAttribute('data-last-export-reach-state-clean');
+        document.documentElement.removeAttribute('data-last-export-error-format');
+        document.documentElement.removeAttribute('data-last-export-error');
+      }
+
+      function writePngToClipboard(blobPromise) {
+        // WebKit requires ClipboardItem to be constructed synchronously inside
+        // the user gesture. Chromium accepts the same pending Promise<Blob>;
+        // engines that reject promise values fall back to an awaited Blob.
+        try {
+          return navigator.clipboard.write([new ClipboardItem({ 'image/png': blobPromise })]);
+        } catch (_) {
+          return blobPromise.then(function (blob) {
+            return navigator.clipboard.write([new ClipboardItem({ 'image/png': blob })]);
+          });
+        }
+      }
+
+      function runCopyShareCard() {
+        close(true);
+        clearExportReceipt();
+        if (!canCopyImage()) {
+          alert(viewerText('viewer.export.clipboardUnsupported.period'));
+          return;
+        }
+        var blobPromise = rasterizeShareCard();
+        return writePngToClipboard(blobPromise).then(function () {
+          return blobPromise.then(function (blob) {
+            recordExportReceipt('share-card', blob, true, { width: SHARE_CARD_WIDTH, height: SHARE_CARD_HEIGHT });
+            toast(viewerText('viewer.export.copiedShare'));
+          });
+        }).catch(function (err) {
+          console.error(err);
+          var technicalMessage = err && err.message ? err.message : 'share-card';
+          var message = exportMessage(err);
+          document.documentElement.setAttribute('data-last-export-error-format', 'share-card');
+          document.documentElement.setAttribute('data-last-export-error', technicalMessage);
+          alert(viewerText('viewer.export.copyFailed', { message: message }));
+        });
+      }
+
+      function runCopy() {
+        close(true);
+        clearExportReceipt();
+        if (!canCopyImage()) {
+          alert(viewerText('viewer.export.clipboardUnsupported.short'));
+          return;
+        }
+        var blobPromise = rasterize('png');
+        return writePngToClipboard(blobPromise).then(function () {
+          toast(viewerText('viewer.export.copiedPng'));
+        }).catch(function (err) {
+          console.error(err);
+          alert(viewerText('viewer.export.copyFailed', {
+            message: exportMessage(err)
+          }));
+        });
+      }
+
+      menu.addEventListener('click', function (e) {
+        var routeShareCardBtn = e.target.closest('button[data-action="route-share-card"]');
+        if (routeShareCardBtn && !routeShareCardBtn.disabled && !routeShareCardBtn.hidden) { runRouteShareCard(); return; }
+
+        var reachShareCardBtn = e.target.closest('button[data-action="reach-share-card"]');
+        if (reachShareCardBtn && !reachShareCardBtn.disabled && !reachShareCardBtn.hidden) { runReachShareCard(); return; }
+
+        var copyShareCardBtn = e.target.closest('button[data-action="copy-share-card"]');
+        if (copyShareCardBtn && !copyShareCardBtn.disabled) { runCopyShareCard(); return; }
+
+        var copyBtn = e.target.closest('button[data-action="copy"]');
+        if (copyBtn && !copyBtn.disabled) { runCopy(); return; }
+
+        var formatBtn = e.target.closest('button[data-format]');
+        if (formatBtn && !formatBtn.disabled) { runExport(formatBtn.dataset.format); }
+      });
+
+      Archify.motion = { canRecord: canRecordMotion, recordWebm: recordWebm };
+      Archify.exportMenu = {
+        open: open,
+        close: close,
+        isOpen: isOpen,
+        run: runExport,
+        shareCard: rasterizeShareCard,
+        downloadRouteShareCard: runRouteShareCard,
+        downloadReachShareCard: runReachShareCard,
+        syncRouteShare: syncRouteShareItem,
+        syncReachShare: syncReachShareItem,
+        copyShareCard: runCopyShareCard
+      };
+
+      // Auto-open on page load for demo/screenshot purposes: ?openExport=1
+      // Wait for fonts (so the menu doesn't flash before typography lands)
+      // and paint before opening. Fallback timeout for browsers without the
+      // Font Loading API.
+      try {
+        if (new URLSearchParams(window.location.search).get('openExport') === '1') {
+          var openWhenReady = function () {
+            requestAnimationFrame(function () { requestAnimationFrame(open); });
+          };
+          if (document.fonts && document.fonts.ready) {
+            document.fonts.ready.then(openWhenReady);
+          } else {
+            setTimeout(openWhenReady, 200);
+          }
+        }
+      } catch (_) {}
+    })();
+
+    /* ============================================================
+       Motion Governor — one reader switch and one motion budget. Ambient
+       trace yields to the strongest semantic owner; Still also parks bounded
+       viewer signals without discarding their static meaning.
+       ============================================================ */
+    Archify.motionGovernor = (function () {
+      var STORAGE_KEY = 'archify-motion';
+      var html = document.documentElement;
+      var svg = document.querySelector('.diagram-container svg');
+      var btn = document.getElementById('btn-motion');
+      var label = document.getElementById('motion-label');
+      var motionQuery = window.matchMedia ? window.matchMedia('(prefers-reduced-motion: reduce)') : null;
+      var capable = !!(svg && svg.getAttribute('data-animation') === 'trace');
+      var readerPaused = false;
+      var suspensions = Object.create(null);
+      var explicitOwner = '';
+      var owner = '';
+      var ownerToken = 0;
+      var ownerCleanup = null;
+      var lastEffectivePaused = null;
+      var ambientStarted = false;
+      var ambientPending = new Set();
+
+      function detachAmbientBoundary() {
+        if (!svg) return;
+        svg.removeEventListener('animationend', onAmbientBoundary, true);
+        svg.removeEventListener('animationcancel', onAmbientBoundary, true);
+      }
+      function settleAmbient(reason) {
+        if (!capable) return false;
+        ambientStarted = true;
+        ambientPending.clear();
+        detachAmbientBoundary();
+        html.setAttribute('data-ambient-motion', 'settled');
+        html.setAttribute('data-ambient-settle-reason', reason || 'complete');
+        return true;
+      }
+      function onAmbientBoundary(event) {
+        if (!ambientPending.has(event.target)) return;
+        ambientPending.delete(event.target);
+        if (!ambientPending.size) settleAmbient('complete');
+      }
+      function startAmbient() {
+        if (ambientStarted || !capable) return false;
+        ambientStarted = true;
+        ambientPending = new Set(Array.prototype.slice.call(svg.querySelectorAll('[data-animate="edge"], [data-animate="node"]')));
+        if (!ambientPending.size) return settleAmbient('empty');
+        svg.addEventListener('animationend', onAmbientBoundary, true);
+        svg.addEventListener('animationcancel', onAmbientBoundary, true);
+        html.setAttribute('data-ambient-motion', 'running');
+        html.removeAttribute('data-ambient-settle-reason');
+        return true;
+      }
+
+      function readStored() {
+        try { return localStorage.getItem(STORAGE_KEY); } catch (_) { return null; }
+      }
+      function writeStored() {
+        try {
+          if (readerPaused) localStorage.setItem(STORAGE_KEY, 'still');
+          else localStorage.removeItem(STORAGE_KEY);
+        } catch (_) {}
+      }
+      function reducedMotion() {
+        return !!(motionQuery && motionQuery.matches);
+      }
+      function hasSuspension() {
+        return Object.keys(suspensions).length > 0;
+      }
+      function effectivePaused() {
+        return readerPaused || reducedMotion() || hasSuspension();
+      }
+      function ownerLabel(value) {
+        if (value === 'story') return viewerText('viewer.owner.story');
+        if (value === 'chapter') return viewerText('viewer.owner.chapter');
+        if (value === 'chapter-preview') return viewerText('viewer.owner.chapterPreview');
+        if (value === 'handoff') return viewerText('viewer.owner.handoff');
+        if (value === 'route') return viewerText('viewer.owner.route');
+        if (value === 'lens') return viewerText('viewer.owner.lens');
+        if (value === 'relationship') return viewerText('viewer.owner.relationship');
+        if (value === 'intent') return viewerText('viewer.owner.intent');
+        if (value === 'focus') return viewerText('viewer.owner.focus');
+        if (value === 'legend') return viewerText('viewer.owner.legend');
+        return viewerText('viewer.owner.reader');
+      }
+      function render() {
+        if (!capable) return;
+        var systemPaused = reducedMotion();
+        var paused = effectivePaused();
+        html.setAttribute('data-motion', paused ? 'still' : 'live');
+        if (paused || owner || html.hasAttribute('data-embed') || html.hasAttribute('data-share-playback') || html.hasAttribute('data-document-hidden')) {
+          settleAmbient('suppressed');
+        } else if (!ambientStarted) {
+          startAmbient();
+        }
+        btn.setAttribute('aria-pressed', paused ? 'false' : 'true');
+        btn.disabled = systemPaused;
+        label.textContent = viewerText(paused ? 'viewer.motion.still' : 'viewer.motion.live');
+        if (paused && lastEffectivePaused !== true && Archify.guidedViews && Archify.guidedViews.isPlaying()) {
+          Archify.guidedViews.pause();
+        }
+        if (paused && lastEffectivePaused !== true && Archify.guidedViews && Archify.guidedViews.settleHandoff) {
+          Archify.guidedViews.settleHandoff(systemPaused ? 'reduced-motion' : (hasSuspension() ? 'hidden' : 'still'));
+        }
+        if (paused && lastEffectivePaused !== true && Archify.routeProbe && Archify.routeProbe.isJourneyPlaying && Archify.routeProbe.isJourneyPlaying()) {
+          Archify.routeProbe.pauseJourney({ preserveElapsed: true, reason: systemPaused ? 'reduced-motion' : (hasSuspension() ? 'hidden' : 'still') });
+        }
+        lastEffectivePaused = paused;
+        if (Archify.routeProbe && typeof Archify.routeProbe.syncMotion === 'function') Archify.routeProbe.syncMotion();
+        if (systemPaused) {
+          btn.setAttribute('aria-label', viewerText('viewer.motion.reduced'));
+          btn.title = viewerText('viewer.motion.reduced');
+        } else if (hasSuspension()) {
+          btn.setAttribute('aria-label', viewerText('viewer.motion.hidden'));
+          btn.title = viewerText('viewer.motion.hidden');
+        } else if (paused) {
+          btn.setAttribute('aria-label', viewerText('viewer.motion.resume'));
+          btn.title = viewerText('viewer.motion.resume');
+        } else if (owner) {
+          btn.setAttribute('aria-label', viewerText('viewer.motion.yielding', { owner: ownerLabel(owner) }));
+          btn.title = viewerText('viewer.motion.yielding.title', { owner: ownerLabel(owner) });
+        } else {
+          btn.setAttribute('aria-label', viewerText('viewer.motion.pause'));
+          btn.title = viewerText('viewer.motion.pause');
+        }
+      }
+      function setPaused(next, options) {
+        options = options || {};
+        readerPaused = !!next;
+        if (options.persist !== false) writeStored();
+        render();
+        return readerPaused;
+      }
+      function publishOwner() {
+        owner = explicitOwner || deriveOwner();
+        if (owner) html.setAttribute('data-motion-owner', owner);
+        else html.removeAttribute('data-motion-owner');
+        render();
+        return owner;
+      }
+      function deriveOwner() {
+        if (!svg) return '';
+        if (svg.hasAttribute('data-story-playing') || svg.hasAttribute('data-story-follow')) return 'story';
+        if (svg.hasAttribute('data-story-active')) return 'chapter';
+        if (svg.hasAttribute('data-route-picking') || svg.hasAttribute('data-route-active')) return 'route';
+        if (svg.hasAttribute('data-lens-active')) return 'lens';
+        if (svg.hasAttribute('data-relationship-preview-active')) return 'relationship';
+        if (svg.hasAttribute('data-intent-trace-active')) return 'intent';
+        if (svg.hasAttribute('data-focus-active')) return 'focus';
+        if (svg.hasAttribute('data-legend-preview-active')) return 'legend';
+        return '';
+      }
+      function clearClaim(preempted) {
+        var cleanup = ownerCleanup;
+        ownerCleanup = null;
+        explicitOwner = '';
+        if (preempted && cleanup) {
+          try { cleanup(); } catch (_) {}
+        }
+      }
+      function claim(next, cleanup) {
+        if (!capable || !next) return 0;
+        clearClaim(true);
+        ownerToken += 1;
+        explicitOwner = next;
+        ownerCleanup = typeof cleanup === 'function' ? cleanup : null;
+        publishOwner();
+        return ownerToken;
+      }
+      function release(token) {
+        if (!capable || token !== ownerToken || !explicitOwner) return false;
+        clearClaim(false);
+        ownerToken += 1;
+        publishOwner();
+        return true;
+      }
+      function suspend(reason) {
+        var key = String(reason || 'runtime');
+        var active = true;
+        suspensions[key] = (suspensions[key] || 0) + 1;
+        render();
+        return function () {
+          if (!active) return false;
+          active = false;
+          if (suspensions[key] > 1) suspensions[key] -= 1;
+          else delete suspensions[key];
+          render();
+          return true;
+        };
+      }
+      function syncVisibility() {
+        if (document.hidden) {
+          suspensions.visibility = true;
+          html.setAttribute('data-document-hidden', 'true');
+        } else {
+          delete suspensions.visibility;
+          html.removeAttribute('data-document-hidden');
+        }
+        render();
+      }
+
+      if (!capable) {
+        btn.hidden = true;
+        html.removeAttribute('data-motion-capable');
+        html.removeAttribute('data-motion');
+        html.removeAttribute('data-motion-owner');
+        html.removeAttribute('data-ambient-motion');
+        html.removeAttribute('data-ambient-settle-reason');
+        return {
+          capable: false,
+          pause: function () { return false; },
+          resume: function () { return false; },
+          toggle: function () { return false; },
+          setMode: function () { return 'still'; },
+          mode: function () { return 'still'; },
+          claim: function () { return 0; },
+          release: function () { return false; },
+          suspend: function () { return function () { return false; }; },
+          isPaused: function () { return true; },
+          owner: function () { return ''; }
+        };
+      }
+
+      html.setAttribute('data-motion-capable', 'true');
+      btn.hidden = false;
+      readerPaused = readStored() === 'still';
+      btn.addEventListener('click', function () { setPaused(!readerPaused); });
+      if (motionQuery) {
+        if (typeof motionQuery.addEventListener === 'function') motionQuery.addEventListener('change', render);
+        else if (typeof motionQuery.addListener === 'function') motionQuery.addListener(render);
+      }
+      document.addEventListener('visibilitychange', syncVisibility);
+      if (document.documentElement.getAttribute('data-embed') !== 'true' && typeof MutationObserver !== 'undefined' && typeof Node !== 'undefined' && svg instanceof Node) {
+        var ownerObserver = new MutationObserver(function () { publishOwner(); });
+        ownerObserver.observe(svg, {
+          attributes: true,
+          attributeFilter: [
+            'data-story-playing', 'data-story-follow', 'data-story-active', 'data-route-picking', 'data-route-active',
+            'data-lens-active', 'data-relationship-preview-active', 'data-intent-trace-active',
+            'data-focus-active', 'data-legend-preview-active'
+          ]
+        });
+      }
+      syncVisibility();
+      publishOwner();
+      render();
+
+      return {
+        capable: true,
+        pause: function () { return setPaused(true); },
+        resume: function () { return setPaused(false); },
+        toggle: function () { return setPaused(!readerPaused); },
+        setMode: function (next, options) {
+          setPaused(next === 'still', options);
+          return effectivePaused() ? 'still' : 'live';
+        },
+        mode: function () { return effectivePaused() ? 'still' : 'live'; },
+        claim: claim,
+        release: release,
+        suspend: suspend,
+        isPaused: effectivePaused,
+        owner: function () { return owner; }
+      };
+    })();
+
+    /* Verified repository evidence is emitted only after the renderer checks
+       the authored GitHub revision, source blobs, and optional line ranges
+       against the explicit --repo-root. It remains outside the SVG so every
+       canonical visual export stays free of repository paths. */
+    Archify.sourceEvidence = (function () {
+      var element = document.getElementById('archify-source-evidence-data');
+      var payload = null;
+      var svgNamespace = 'http://www.w3.org/2000/svg';
+      if (element) {
+        try {
+          var parsed = JSON.parse(element.textContent || 'null');
+          if (parsed && parsed.verified === true && parsed.repository && parsed.nodes) payload = parsed;
+        } catch (_) {}
+      }
+      function installBeacons() {
+        if (!payload) return 0;
+        var svg = document.querySelector('.diagram-container svg');
+        if (!svg) return 0;
+        var installed = 0;
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+          var id = node.getAttribute('data-node-id');
+          var sources = payload.nodes[id];
+          if (!Array.isArray(sources) || !sources.length || node.querySelector('[data-source-evidence-beacon]')) return;
+          var shape = node.querySelector('[data-animate="node"]') || node.querySelector('[class*="c-"]');
+          var box;
+          try { box = (shape || node).getBBox(); } catch (_) { return; }
+          if (!box || !Number.isFinite(box.x) || !Number.isFinite(box.y) || !Number.isFinite(box.width) || box.width < 36) return;
+
+          var count = sources.length;
+          var label = viewerCount('viewer.passport.beacon', count);
+          var beacon = document.createElementNS(svgNamespace, 'g');
+          beacon.classList.add('source-evidence-beacon');
+          beacon.setAttribute('data-source-evidence-beacon', '');
+          beacon.setAttribute('aria-hidden', 'true');
+          var brandOffset = node.hasAttribute('data-node-brand') ? 24 : 0;
+          beacon.setAttribute('transform', 'translate(' + (box.x + box.width - 35 - brandOffset) + ' ' + (box.y + 5) + ')');
+          var title = document.createElementNS(svgNamespace, 'title');
+          title.textContent = label;
+          var plate = document.createElementNS(svgNamespace, 'rect');
+          plate.setAttribute('width', '30');
+          plate.setAttribute('height', '12');
+          plate.setAttribute('rx', '6');
+          var text = document.createElementNS(svgNamespace, 'text');
+          text.setAttribute('x', '15');
+          text.setAttribute('y', '8.25');
+          text.textContent = viewerText('viewer.passport.sourceMarker') + ' ' + count;
+          beacon.appendChild(title);
+          beacon.appendChild(plate);
+          beacon.appendChild(text);
+          node.appendChild(beacon);
+
+          var originalLabel = node.getAttribute('aria-label') || '';
+          node.setAttribute('data-source-evidence-count', String(count));
+          node.setAttribute('data-source-evidence-original-label', originalLabel);
+          node.setAttribute('aria-label', (originalLabel ? originalLabel + ', ' : '') + viewerCount('viewer.passport.sourceCount', count));
+          installed += 1;
+        });
+        return installed;
+      }
+      return {
+        available: function () { return Boolean(payload); },
+        repository: function () { return payload ? payload.repository : null; },
+        node: function (id) {
+          var sources = payload && payload.nodes ? payload.nodes[id] : null;
+          return Array.isArray(sources) ? sources.slice() : [];
+        },
+        installBeacons: installBeacons
+      };
+    })();
+    Archify.sourceEvidence.installBeacons();
+
+    /* ============================================================
+       Explore — stable-ID neighborhood focus + dependency-free pan/zoom.
+       Renderer IDs become deep-linkable semantic hooks without turning the
+       standalone artifact into a canvas editor.
+       ============================================================ */
+    Archify.focus = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector('svg');
+      var chip = document.getElementById('focus-chip');
+      var label = document.getElementById('focus-label');
+      var detail = document.getElementById('focus-detail');
+      var kind = document.getElementById('focus-kind');
+      var context = document.getElementById('focus-context');
+      var tag = document.getElementById('focus-tag');
+      var semanticId = document.getElementById('focus-id');
+      var evidence = document.getElementById('focus-evidence');
+      var repositoryLink = document.getElementById('focus-repository');
+      var evidenceLinks = document.getElementById('focus-evidence-links');
+      var summary = document.getElementById('focus-summary');
+      var reachSection = document.getElementById('focus-reach');
+      var reachStatus = document.getElementById('focus-reach-status');
+      var upstreamBtn = document.getElementById('btn-reach-upstream');
+      var downstreamBtn = document.getElementById('btn-reach-downstream');
+      var upstreamCount = document.getElementById('focus-reach-upstream-count');
+      var downstreamCount = document.getElementById('focus-reach-downstream-count');
+      var relationshipList = document.getElementById('relationship-lens-list');
+      var copyBtn = document.getElementById('btn-focus-copy');
+      var relationsBtn = document.getElementById('btn-focus-relations');
+      var clearBtn = document.getElementById('btn-focus-clear');
+      var activeIds = [];
+      var hoveredRelationship = null;
+      var focusedRelationship = null;
+      var pinnedRelationship = null;
+      var pinnedRelationshipKey = null;
+      var activeRelationshipPreview = null;
+      var relationshipHitOverlay = null;
+      var relationshipHitTargets = [];
+      var directPreviewTimer = null;
+      var reachabilityMode = null;
+      var activeReachability = null;
+      var svgNamespace = 'http://www.w3.org/2000/svg';
+      var reducedMotionQuery = window.matchMedia ? window.matchMedia('(prefers-reduced-motion: reduce)') : null;
+      var finePointerQuery = window.matchMedia ? window.matchMedia('(hover: hover) and (pointer: fine)') : null;
+
+      function nodes() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-node-id]'));
+      }
+      function edges() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'));
+      }
+      function nodeLabel(node, fallback) {
+        return node.getAttribute('data-node-label') || (node.getAttribute('aria-label') || fallback).replace(/^Focus\s+/, '');
+      }
+      function reachabilityRelationships() {
+        var seen = Object.create(null);
+        var relationships = [];
+        edges().forEach(function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          var key = edge.getAttribute('data-edge-key') || (from + '\u0000' + to + '\u0000' + (edge.getAttribute('data-edge-label') || ''));
+          if (!from || !to || seen[key]) return;
+          seen[key] = true;
+          relationships.push({ key: key, from: from, to: to });
+        });
+        return relationships;
+      }
+      function computeReachability(originId, direction, relationships) {
+        if (typeof originId !== 'string' || !originId ||
+            (direction !== 'upstream' && direction !== 'downstream') ||
+            !Array.isArray(relationships)) return null;
+        var records = [];
+        var seenKeys = Object.create(null);
+        relationships.forEach(function (relationship, index) {
+          if (!relationship || typeof relationship.from !== 'string' || !relationship.from ||
+              typeof relationship.to !== 'string' || !relationship.to) return;
+          var key = typeof relationship.key === 'string' && relationship.key
+            ? relationship.key : String(index);
+          if (seenKeys[key]) return;
+          seenKeys[key] = true;
+          records.push({ key: key, from: relationship.from, to: relationship.to });
+        });
+
+        var depths = Object.create(null);
+        var order = [];
+        var queue = [originId];
+        depths[originId] = 0;
+        for (var cursor = 0; cursor < queue.length; cursor += 1) {
+          var current = queue[cursor];
+          records.forEach(function (relationship) {
+            var next = null;
+            if (direction === 'downstream' && relationship.from === current) next = relationship.to;
+            else if (direction === 'upstream' && relationship.to === current) next = relationship.from;
+            if (next == null || Object.prototype.hasOwnProperty.call(depths, next)) return;
+            depths[next] = depths[current] + 1;
+            queue.push(next);
+          });
+        }
+        queue.forEach(function (id) { order.push(id); });
+
+        var edgeKeys = [];
+        records.forEach(function (relationship) {
+          if (Object.prototype.hasOwnProperty.call(depths, relationship.from) &&
+              Object.prototype.hasOwnProperty.call(depths, relationship.to)) edgeKeys.push(relationship.key);
+        });
+        var maxDepth = order.reduce(function (maximum, id) {
+          return Math.max(maximum, depths[id]);
+        }, 0);
+        return {
+          direction: direction,
+          originId: originId,
+          nodeIds: order,
+          edgeKeys: edgeKeys,
+          depths: depths,
+          maxDepth: maxDepth
+        };
+      }
+      function reachabilityFor(id, direction) {
+        return computeReachability(id, direction, reachabilityRelationships());
+      }
+      function resetReachabilityButtons() {
+        upstreamBtn.setAttribute('aria-pressed', 'false');
+        downstreamBtn.setAttribute('aria-pressed', 'false');
+      }
+      function clearReachability(options) {
+        options = options || {};
+        reachabilityMode = null;
+        activeReachability = null;
+        svg.removeAttribute('data-reach-active');
+        chip.removeAttribute('data-reach-mode');
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-reach-match');
+          node.removeAttribute('data-reach-origin');
+          node.removeAttribute('data-reach-depth');
+        });
+        edges().forEach(function (edge) {
+          edge.removeAttribute('data-reach-match');
+          edge.removeAttribute('data-reach-depth');
+        });
+        resetReachabilityButtons();
+        reachStatus.textContent = '';
+        reachStatus.hidden = true;
+        if (Archify.exportMenu && typeof Archify.exportMenu.syncReachShare === 'function') {
+          Archify.exportMenu.syncReachShare();
+        }
+        if (options.updateUrl === true && activeIds.length === 1) {
+          try {
+            history.replaceState(null, '', location.pathname + location.search + '#focus=' + encodeURIComponent(activeIds[0]));
+          } catch (_) {}
+        }
+      }
+      function renderReachabilityControls(id) {
+        var upstream = reachabilityFor(id, 'upstream');
+        var downstream = reachabilityFor(id, 'downstream');
+        var upstreamReach = upstream ? Math.max(0, upstream.nodeIds.length - 1) : 0;
+        var downstreamReach = downstream ? Math.max(0, downstream.nodeIds.length - 1) : 0;
+        upstreamCount.textContent = String(upstreamReach);
+        downstreamCount.textContent = String(downstreamReach);
+        upstreamBtn.disabled = upstreamReach === 0;
+        downstreamBtn.disabled = downstreamReach === 0;
+        upstreamBtn.setAttribute('aria-label', upstreamReach
+          ? viewerCount('viewer.passport.reach.upstream', upstreamReach)
+          : viewerText('viewer.passport.reach.noUpstream'));
+        downstreamBtn.setAttribute('aria-label', downstreamReach
+          ? viewerCount('viewer.passport.reach.downstream', downstreamReach)
+          : viewerText('viewer.passport.reach.noDownstream'));
+        reachSection.hidden = false;
+      }
+      function applyReachability(direction, options) {
+        options = options || {};
+        if (activeIds.length !== 1 || (direction !== 'upstream' && direction !== 'downstream')) return false;
+        if (reachabilityMode === direction && options.toggle !== false) {
+          clearReachability({ updateUrl: options.updateUrl !== false });
+          return true;
+        }
+        var result = reachabilityFor(activeIds[0], direction);
+        if (!result || result.nodeIds.length <= 1) return false;
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false, resetView: false });
+        }
+        clearRelationshipPreview({ clearPin: true });
+        clearReachability({ updateUrl: false });
+        reachabilityMode = direction;
+        activeReachability = result;
+        var edgeKeySet = Object.create(null);
+        result.edgeKeys.forEach(function (key) { edgeKeySet[key] = true; });
+        svg.setAttribute('data-reach-active', direction);
+        chip.setAttribute('data-reach-mode', direction);
+        nodes().forEach(function (node) {
+          var id = node.getAttribute('data-node-id');
+          if (!Object.prototype.hasOwnProperty.call(result.depths, id)) return;
+          node.setAttribute('data-reach-match', '');
+          node.setAttribute('data-reach-depth', String(result.depths[id]));
+          if (id === result.originId) node.setAttribute('data-reach-origin', '');
+        });
+        edges().forEach(function (edge) {
+          var key = edge.getAttribute('data-edge-key') || (
+            edge.getAttribute('data-edge-from') + '\u0000' +
+            edge.getAttribute('data-edge-to') + '\u0000' +
+            (edge.getAttribute('data-edge-label') || '')
+          );
+          if (!edgeKeySet[key]) return;
+          edge.setAttribute('data-reach-match', '');
+          var fromDepth = result.depths[edge.getAttribute('data-edge-from')];
+          var toDepth = result.depths[edge.getAttribute('data-edge-to')];
+          edge.setAttribute('data-reach-depth', String(Math.max(fromDepth || 0, toDepth || 0)));
+        });
+        resetReachabilityButtons();
+        var activeButton = direction === 'upstream' ? upstreamBtn : downstreamBtn;
+        activeButton.setAttribute('aria-pressed', 'true');
+        var reachableCount = result.nodeIds.length - 1;
+        var directionLabel = viewerText(direction === 'upstream'
+          ? 'viewer.passport.upstream'
+          : 'viewer.passport.downstream');
+        reachStatus.textContent = viewerText('viewer.passport.reach.status', {
+          direction: directionLabel,
+          nodes: reachableCount,
+          links: result.edgeKeys.length,
+          hops: result.maxDepth
+        });
+        reachStatus.hidden = false;
+        if (Archify.exportMenu && typeof Archify.exportMenu.syncReachShare === 'function') {
+          Archify.exportMenu.syncReachShare();
+        }
+        if (options.updateUrl !== false) {
+          try {
+            history.replaceState(null, '', location.pathname + location.search + '#focus=' +
+              encodeURIComponent(activeIds[0]) + '&reach=' + direction);
+          } catch (_) {}
+        }
+        if (options.reveal !== false && Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal(result.nodeIds, { includeNeighbors: false, reason: 'reachability' });
+        }
+        requestLensPlacement();
+        return true;
+      }
+      function reachabilitySnapshot() {
+        if (!activeReachability || activeIds.length !== 1 ||
+            (reachabilityMode !== 'upstream' && reachabilityMode !== 'downstream') ||
+            activeReachability.direction !== reachabilityMode ||
+            activeReachability.originId !== activeIds[0] ||
+            svg.getAttribute('data-reach-active') !== reachabilityMode) return null;
+
+        var originId = activeReachability.originId;
+        var nodeIds = activeReachability.nodeIds.slice();
+        var edgeKeys = activeReachability.edgeKeys.slice();
+        if (nodeIds.length < 2 || nodeIds[0] !== originId || !edgeKeys.length ||
+            !activeReachability.depths || !Number.isInteger(activeReachability.maxDepth) ||
+            activeReachability.maxDepth < 1) return null;
+
+        var allNodes = nodes();
+        var allEdges = edges();
+        var seenNodeIds = Object.create(null);
+        var seenEdgeKeys = Object.create(null);
+        var nodeIdSet = Object.create(null);
+        var depths = Object.create(null);
+        var originNode = null;
+        var measuredMaxDepth = 0;
+
+        if (nodeIds.some(function (id) {
+          var depth = activeReachability.depths[id];
+          var matches = allNodes.filter(function (node) {
+            return node.getAttribute('data-node-id') === id;
+          });
+          if (typeof id !== 'string' || !id || seenNodeIds[id] || matches.length !== 1 ||
+              !matches[0].hasAttribute('data-reach-match') ||
+              !Number.isInteger(depth) || depth < 0 || depth > activeReachability.maxDepth ||
+              (id === originId
+                ? (!matches[0].hasAttribute('data-reach-origin') || depth !== 0)
+                : depth < 1)) return true;
+          seenNodeIds[id] = true;
+          nodeIdSet[id] = true;
+          depths[id] = depth;
+          measuredMaxDepth = Math.max(measuredMaxDepth, depth);
+          if (id === originId) originNode = matches[0];
+          return false;
+        }) || !originNode || measuredMaxDepth !== activeReachability.maxDepth ||
+            allNodes.filter(function (node) { return node.hasAttribute('data-reach-match'); }).length !== nodeIds.length) return null;
+
+        var edgeRecords = [];
+        if (edgeKeys.some(function (key) {
+          if (typeof key !== 'string' || !key || seenEdgeKeys[key]) return true;
+          var fragments = allEdges.filter(function (edge) {
+            return edge.getAttribute('data-edge-key') === key;
+          });
+          var drawableFragments = fragments.filter(hasDrawableGeometry);
+          if (!fragments.length || drawableFragments.length !== 1 ||
+              !fragments.every(function (fragment) { return fragment.hasAttribute('data-reach-match'); })) return true;
+          var first = fragments[0];
+          var from = first.getAttribute('data-edge-from');
+          var to = first.getAttribute('data-edge-to');
+          var id = first.getAttribute('data-edge-id') || '';
+          var labelValue = first.getAttribute('data-edge-label') || '';
+          if (!nodeIdSet[from] || !nodeIdSet[to] || !fragments.every(function (fragment) {
+            return fragment.getAttribute('data-edge-from') === from &&
+              fragment.getAttribute('data-edge-to') === to &&
+              (fragment.getAttribute('data-edge-id') || '') === id;
+          })) return true;
+          seenEdgeKeys[key] = true;
+          edgeRecords.push({
+            key: key,
+            id: id,
+            from: from,
+            to: to,
+            label: labelValue,
+            depth: Math.max(depths[from], depths[to])
+          });
+          return false;
+        })) return null;
+
+        var liveEdgeKeys = Object.create(null);
+        if (allEdges.some(function (edge) {
+          if (!edge.hasAttribute('data-reach-match')) return false;
+          var key = edge.getAttribute('data-edge-key');
+          if (!key || !seenEdgeKeys[key]) return true;
+          liveEdgeKeys[key] = true;
+          return false;
+        }) || Object.keys(liveEdgeKeys).length !== edgeKeys.length) return null;
+
+        return {
+          direction: reachabilityMode,
+          origin: { id: originId, label: nodeLabel(originNode, originId) },
+          nodeIds: nodeIds,
+          depths: depths,
+          maxDepth: activeReachability.maxDepth,
+          edges: edgeRecords
+        };
+      }
+      function setPassportValue(element, value) {
+        var normalized = value == null ? '' : String(value).trim();
+        element.textContent = normalized;
+        element.hidden = !normalized;
+      }
+      function renderSourceEvidence(id) {
+        evidenceLinks.textContent = '';
+        repositoryLink.removeAttribute('href');
+        repositoryLink.textContent = '';
+        var sources = Archify.sourceEvidence.node(id);
+        var repository = Archify.sourceEvidence.repository();
+        if (!repository || !sources.length) {
+          evidence.hidden = true;
+          return;
+        }
+        var slug = repository.url.replace(/^https:\/\/github\.com\//, '').replace(/\/$/, '');
+        repositoryLink.href = repository.url + '/tree/' + repository.revision;
+        repositoryLink.textContent = slug + ' @ ' + repository.shortRevision;
+        repositoryLink.setAttribute('aria-label', viewerText('viewer.passport.repository.open', { revision: repository.revision }));
+        sources.forEach(function (source) {
+          var link = document.createElement('a');
+          link.className = 'semantic-passport-source';
+          link.href = source.href;
+          link.target = '_blank';
+          link.rel = 'noopener noreferrer';
+          link.referrerPolicy = 'no-referrer';
+          link.setAttribute('aria-label', viewerText('viewer.passport.source.open', { path: source.path, revision: repository.shortRevision }));
+          var name = document.createElement('strong');
+          name.textContent = source.label || source.path.split('/').pop() || source.path;
+          var location = document.createElement('code');
+          location.textContent = source.line
+            ? 'L' + source.line + (source.endLine && source.endLine !== source.line ? '–' + source.endLine : '') + ' ↗'
+            : viewerText('viewer.passport.source.openLink');
+          var sourcePath = document.createElement('small');
+          sourcePath.textContent = source.path;
+          link.appendChild(name);
+          link.appendChild(location);
+          link.appendChild(sourcePath);
+          evidenceLinks.appendChild(link);
+        });
+        evidence.hidden = false;
+      }
+      function renderPassport(id, node) {
+        setPassportValue(detail, node.getAttribute('data-node-sublabel'));
+        setPassportValue(kind, viewerKindLabel(node.getAttribute('data-node-kind') || 'node'));
+        setPassportValue(context, node.getAttribute('data-node-context'));
+        setPassportValue(tag, node.getAttribute('data-node-tag'));
+        setPassportValue(document.getElementById('focus-brand'), node.getAttribute('data-node-brand'));
+        semanticId.textContent = id;
+        semanticId.hidden = false;
+        renderSourceEvidence(id);
+      }
+      function relationshipsFor(id, byId) {
+        var seen = {};
+        var relationships = [];
+        edges().forEach(function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          if (from !== id && to !== id) return;
+          var edgeLabel = edge.getAttribute('data-edge-label') || '';
+          var edgeKey = edge.getAttribute('data-edge-key') || (from + '\u0000' + to + '\u0000' + edgeLabel);
+          var edgeId = edge.getAttribute('data-edge-id') || '';
+          if (seen[edgeKey]) return;
+          seen[edgeKey] = true;
+          var direction = from === id && to === id ? 'loop' : (from === id ? 'out' : 'in');
+          var neighborId = direction === 'in' ? from : to;
+          var neighbor = byId[neighborId];
+          relationships.push({
+            key: edgeKey,
+            id: edgeId,
+            from: from,
+            to: to,
+            direction: direction,
+            neighborId: neighborId,
+            neighborLabel: neighbor ? nodeLabel(neighbor, neighborId) : neighborId,
+            label: edgeLabel || viewerText(direction === 'loop'
+              ? 'viewer.passport.relationship.loopsBack'
+              : direction === 'out'
+                ? 'viewer.passport.relationship.connectsTo'
+                : 'viewer.passport.relationship.connectsFrom')
+          });
+        });
+        return relationships;
+      }
+      function relationshipEdgeShapes(edge) {
+        if (!edge) return [];
+        if (/^(path|line|polyline)$/i.test(edge.tagName || '')) return [edge];
+        return Array.prototype.slice.call(edge.querySelectorAll('path, line, polyline'));
+      }
+      function relationshipHitRecords() {
+        var recordsByKey = {};
+        var recordsById = {};
+        var byId = {};
+        nodes().forEach(function (node) { byId[node.getAttribute('data-node-id')] = node; });
+        var records = [];
+        edges().forEach(function (edge) {
+          var shapes = relationshipEdgeShapes(edge);
+          if (!shapes.length) return;
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          var labelValue = edge.getAttribute('data-edge-label') || '';
+          var edgeId = edge.getAttribute('data-edge-id') || '';
+          var key = edge.getAttribute('data-edge-key') || (from + '\u0000' + to + '\u0000' + labelValue);
+          var existing = recordsByKey[key];
+          if (existing) {
+            if (existing.from !== from || existing.to !== to || existing.labelValue !== labelValue || existing.id !== edgeId) {
+              existing.invalid = true;
+              return;
+            }
+            shapes.forEach(function (shape) {
+              if (existing.shapes.indexOf(shape) === -1) existing.shapes.push(shape);
+            });
+            return;
+          }
+          var record = {
+            key: key,
+            id: edgeId,
+            from: from,
+            to: to,
+            fromLabel: byId[from] ? nodeLabel(byId[from], from) : from,
+            toLabel: byId[to] ? nodeLabel(byId[to], to) : to,
+            labelValue: labelValue,
+            label: labelValue || viewerText(from === to
+              ? 'viewer.passport.relationship.loopsBack'
+              : 'viewer.passport.relationship.connectsTo'),
+            edge: edge,
+            shapes: shapes,
+            invalid: false
+          };
+          recordsByKey[key] = record;
+          if (edgeId) {
+            if (recordsById[edgeId]) {
+              recordsById[edgeId].invalid = true;
+              record.invalid = true;
+            } else {
+              recordsById[edgeId] = record;
+            }
+          }
+          records.push(record);
+        });
+        return records.filter(function (record) { return !record.invalid && record.from && record.to; });
+      }
+      function relationshipRecordForKey(key) {
+        return relationshipHitRecords().find(function (record) { return record.key === key; }) || null;
+      }
+      function pinnedRelationshipRecord() {
+        return pinnedRelationshipKey ? relationshipRecordForKey(pinnedRelationshipKey) : null;
+      }
+      function renderRelationshipCopyAction() {
+        var record = pinnedRelationshipRecord();
+        if (record && record.id) {
+          copyBtn.textContent = viewerText('viewer.passport.copyRelation');
+          copyBtn.setAttribute('aria-label', viewerText('viewer.passport.copyPinned'));
+        } else if (pinnedRelationshipKey) {
+          copyBtn.textContent = viewerText('viewer.passport.copyNode');
+          copyBtn.setAttribute('aria-label', viewerText('viewer.passport.copySource'));
+        } else {
+          copyBtn.textContent = viewerText('viewer.passport.copy');
+          copyBtn.setAttribute('aria-label', viewerText('viewer.passport.copy.focus'));
+        }
+      }
+      function relationshipHitGeometry(shape, className) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('filter');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('tabindex');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-labelledby');
+        clone.removeAttribute('aria-hidden');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.setAttribute('class', className || 'relationship-hit-rail');
+        return clone;
+      }
+      function removeRelationshipPulse() {
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-relationship-pulse-overlay]'), function (element) {
+          element.remove();
+        });
+      }
+      function relationshipPulseGeometry(shape) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('transform');
+        clone.removeAttribute('filter');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('tabindex');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-hidden');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.removeAttribute('data-focus-match');
+        clone.removeAttribute('data-relationship-preview');
+        clone.setAttribute('class', 'relationship-flow-pulse');
+        clone.setAttribute('pathLength', '1');
+        return clone;
+      }
+      function relationshipTokenKind(edge) {
+        var shapes = relationshipEdgeShapes(edge);
+        var classEvidence = [edge.getAttribute('class') || ''].concat(shapes.map(function (shape) {
+          return shape.getAttribute('class') || '';
+        })).join(' ');
+        var from = edge.getAttribute('data-edge-from') || '';
+        var to = edge.getAttribute('data-edge-to') || '';
+        var source = nodes().find(function (node) { return node.getAttribute('data-node-id') === from; });
+        var target = nodes().find(function (node) { return node.getAttribute('data-node-id') === to; });
+        var sourceKind = source ? source.getAttribute('data-node-kind') || 'neutral' : 'neutral';
+        var targetKind = target ? target.getAttribute('data-node-kind') || 'neutral' : 'neutral';
+        if (/\ba-security\b/.test(classEvidence) || sourceKind === 'security' || targetKind === 'security' || targetKind === 'failure') return 'security';
+        if (/\ba-dashed\b/.test(classEvidence) || sourceKind === 'messagebus' || targetKind === 'messagebus') return 'event';
+        if (sourceKind === 'database' || targetKind === 'database') return 'data';
+        if (targetKind === 'waiting' || targetKind === 'success') return 'state';
+        return 'call';
+      }
+      function relationshipTokenPath(shape) {
+        if (!shape) return '';
+        var tagName = String(shape.tagName || '').toLowerCase();
+        if (tagName === 'path') return shape.getAttribute('d') || '';
+        if (tagName === 'line') {
+          return 'M ' + shape.getAttribute('x1') + ' ' + shape.getAttribute('y1') +
+            ' L ' + shape.getAttribute('x2') + ' ' + shape.getAttribute('y2');
+        }
+        if (tagName === 'polyline' && shape.points && shape.points.numberOfItems > 1) {
+          var commands = [];
+          for (var i = 0; i < shape.points.numberOfItems; i += 1) {
+            var point = shape.points.getItem(i);
+            commands.push((i === 0 ? 'M ' : 'L ') + point.x + ' ' + point.y);
+          }
+          return commands.join(' ');
+        }
+        return '';
+      }
+      function relationshipTokenPart(tagName, className, attrs) {
+        var part = document.createElementNS(svgNamespace, tagName);
+        part.setAttribute('class', className);
+        Object.keys(attrs || {}).forEach(function (name) { part.setAttribute(name, attrs[name]); });
+        return part;
+      }
+      function relationshipTokenGeometry(shape, kind, key, options) {
+        options = options || {};
+        var pathData = relationshipTokenPath(shape);
+        if (!pathData) return null;
+        var token = document.createElementNS(svgNamespace, 'g');
+        token.setAttribute('class', 'semantic-flow-token ' + (options.className || 'relationship-flow-token'));
+        token.setAttribute('data-token-kind', kind);
+        token.setAttribute('data-token-edge-key', key);
+        token.setAttribute('aria-hidden', 'true');
+        token.appendChild(relationshipTokenPart('circle', 'semantic-flow-token-halo', { cx: '0', cy: '0', r: '7' }));
+        if (kind === 'data') {
+          token.appendChild(relationshipTokenPart('rect', 'relationship-flow-token-shape', { x: '-5', y: '-4', width: '10', height: '8', rx: '2' }));
+          token.appendChild(relationshipTokenPart('path', 'relationship-flow-token-ink', { d: 'M -2.8 -1.2 h 5.6 M -2.8 1.4 h 3.8' }));
+        } else if (kind === 'event') {
+          token.appendChild(relationshipTokenPart('rect', 'relationship-flow-token-shape', { x: '-7', y: '-3', width: '4', height: '6', rx: '1' }));
+          token.appendChild(relationshipTokenPart('rect', 'relationship-flow-token-shape', { x: '-2', y: '-3', width: '4', height: '6', rx: '1' }));
+          token.appendChild(relationshipTokenPart('rect', 'relationship-flow-token-shape', { x: '3', y: '-3', width: '4', height: '6', rx: '1' }));
+        } else if (kind === 'security') {
+          token.appendChild(relationshipTokenPart('path', 'relationship-flow-token-shape', { d: 'M 0 -5 L 4 -3.4 V 0 c 0 3 -1.6 4.5 -4 5.5 C -2.4 4.5 -4 3 -4 0 v -3.4 Z' }));
+          token.appendChild(relationshipTokenPart('path', 'relationship-flow-token-ink', { d: 'm -2 .2 1.4 1.4 L 2 -1.4' }));
+        } else if (kind === 'state') {
+          token.appendChild(relationshipTokenPart('circle', 'relationship-flow-token-shape', { cx: '0', cy: '0', r: '5' }));
+          token.appendChild(relationshipTokenPart('circle', 'relationship-flow-token-dot', { cx: '0', cy: '0', r: '1.35' }));
+        } else {
+          token.appendChild(relationshipTokenPart('path', 'relationship-flow-token-ink', { d: 'M -5 -3 L -1 0 L -5 3 M 0 -3 L 4 0 L 0 3' }));
+        }
+        var motion = document.createElementNS(svgNamespace, 'animateMotion');
+        motion.setAttribute('path', pathData);
+        motion.setAttribute('dur', options.duration || '1.2s');
+        motion.setAttribute('begin', '0s');
+        motion.setAttribute('fill', 'freeze');
+        motion.setAttribute('rotate', 'auto');
+        motion.setAttribute('calcMode', 'spline');
+        motion.setAttribute('keyTimes', '0;1');
+        motion.setAttribute('keySplines', '.2 0 .2 1');
+        token.appendChild(motion);
+        return token;
+      }
+      function createSemanticFlowToken(edge, shape, options) {
+        if (!edge || !shape) return null;
+        var key = edge.getAttribute('data-edge-key') || (
+          edge.getAttribute('data-edge-from') + '\u0000' +
+          edge.getAttribute('data-edge-to') + '\u0000' +
+          (edge.getAttribute('data-edge-label') || '')
+        );
+        return relationshipTokenGeometry(shape, relationshipTokenKind(edge), key, options);
+      }
+      Archify.flowTokens = {
+        create: createSemanticFlowToken,
+        kind: function (edge) { return relationshipTokenKind(edge); },
+        path: relationshipTokenPath
+      };
+      function renderRelationshipPulse(key) {
+        removeRelationshipPulse();
+        if (!key || document.documentElement.getAttribute('data-embed') === 'true') return false;
+        if (document.hidden || (Archify.motionGovernor && Archify.motionGovernor.isPaused())) return false;
+        if (reducedMotionQuery && reducedMotionQuery.matches) return false;
+        var matchingEdges = edges().filter(function (edge) {
+          return edge.getAttribute('data-edge-key') === key;
+        });
+        if (!matchingEdges.length) return false;
+        var overlay = document.createElementNS(svgNamespace, 'g');
+        overlay.setAttribute('class', 'relationship-pulse-overlay');
+        overlay.setAttribute('data-relationship-pulse-overlay', '');
+        overlay.setAttribute('data-relationship-pulse-key', key);
+        overlay.setAttribute('aria-hidden', 'true');
+        var tokenAdded = false;
+        matchingEdges.forEach(function (edge) {
+          var wrapper = document.createElementNS(svgNamespace, 'g');
+          if (edge.hasAttribute('transform')) wrapper.setAttribute('transform', edge.getAttribute('transform'));
+          var shapes = relationshipEdgeShapes(edge);
+          shapes.forEach(function (shape) {
+            wrapper.appendChild(relationshipPulseGeometry(shape));
+          });
+          if (!tokenAdded && shapes.length) {
+            var tokenKind = relationshipTokenKind(edge);
+            var token = relationshipTokenGeometry(shapes[0], tokenKind, key);
+            if (token) {
+              wrapper.appendChild(token);
+              overlay.setAttribute('data-relationship-token-kind', tokenKind);
+              tokenAdded = true;
+            }
+          }
+          if (wrapper.childNodes.length) overlay.appendChild(wrapper);
+        });
+        if (!overlay.childNodes.length) return false;
+        var finishPulse = function () {
+          if (overlay.parentNode) overlay.remove();
+        };
+        overlay.addEventListener('animationend', finishPulse, { once: true });
+        overlay.addEventListener('animationcancel', finishPulse, { once: true });
+        var firstNode = svg.querySelector('[data-node-id]');
+        if (firstNode) svg.insertBefore(overlay, firstNode);
+        else svg.appendChild(overlay);
+        return true;
+      }
+      function clearRelationshipPreview(options) {
+        options = options || {};
+        if (directPreviewTimer) window.clearTimeout(directPreviewTimer);
+        directPreviewTimer = null;
+        removeRelationshipPulse();
+        activeRelationshipPreview = null;
+        svg.removeAttribute('data-relationship-preview-active');
+        svg.removeAttribute('data-relationship-direct-active');
+        if (options.clearPin === true) {
+          pinnedRelationship = null;
+          pinnedRelationshipKey = null;
+          svg.removeAttribute('data-relationship-pin-active');
+        }
+        chip.removeAttribute('data-relationship-previewing');
+        edges().forEach(function (edge) { edge.removeAttribute('data-relationship-preview'); });
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-relationship-preview-node');
+          node.removeAttribute('data-relationship-preview-source');
+          node.removeAttribute('data-relationship-preview-target');
+        });
+        Array.prototype.forEach.call(relationshipList.querySelectorAll('[data-preview-active]'), function (button) {
+          button.removeAttribute('data-preview-active');
+        });
+        relationshipHitTargets.forEach(function (target) {
+          target.setAttribute('aria-pressed', pinnedRelationshipKey && target.getAttribute('data-relationship-key') === pinnedRelationshipKey ? 'true' : 'false');
+          target.removeAttribute('data-preview-active');
+        });
+        renderRelationshipCopyAction();
+        requestLensPlacement();
+      }
+      function previewRelationship(button, options) {
+        options = options || {};
+        if (pinnedRelationshipKey && pinnedRelationship && button !== pinnedRelationship) return;
+        clearRelationshipPreview();
+        if (!button) return;
+        var key = button.getAttribute('data-relationship-key');
+        var from = button.getAttribute('data-relationship-from');
+        var to = button.getAttribute('data-relationship-to');
+        if (!key || !from || !to) return;
+        svg.setAttribute('data-relationship-preview-active', key);
+        if (options.direct === true) svg.setAttribute('data-relationship-direct-active', key);
+        edges().forEach(function (edge) {
+          if (edge.getAttribute('data-edge-key') === key) edge.setAttribute('data-relationship-preview', '');
+        });
+        nodes().forEach(function (node) {
+          var id = node.getAttribute('data-node-id');
+          if (id !== from && id !== to) return;
+          node.setAttribute('data-relationship-preview-node', '');
+          if (id === from) node.setAttribute('data-relationship-preview-source', '');
+          if (id === to) node.setAttribute('data-relationship-preview-target', '');
+        });
+        button.setAttribute('data-preview-active', 'true');
+        if (!chip.hidden && options.direct !== true) chip.setAttribute('data-relationship-previewing', 'true');
+        activeRelationshipPreview = button;
+        renderRelationshipPulse(key);
+        requestLensPlacement();
+      }
+      function syncRelationshipPreview() {
+        var next = pinnedRelationship || focusedRelationship || hoveredRelationship;
+        if (next === activeRelationshipPreview) return;
+        previewRelationship(next, { direct: !!(next && next.hasAttribute('data-relationship-hit-key')) });
+      }
+      function directRelationshipBlocked() {
+        return html.getAttribute('data-embed') === 'true' ||
+          html.getAttribute('data-guide-open') === 'true' ||
+          container.classList.contains('is-panning') ||
+          (activeIds.length > 0 && !pinnedRelationshipKey) ||
+          svg.hasAttribute('data-story-active') ||
+          svg.hasAttribute('data-route-picking') ||
+          svg.hasAttribute('data-route-active') ||
+          svg.hasAttribute('data-lens-active') ||
+          svg.hasAttribute('data-chapter-preview');
+      }
+      function scheduleDirectRelationshipPreview(target) {
+        if (directPreviewTimer) window.clearTimeout(directPreviewTimer);
+        if (pinnedRelationshipKey) return;
+        directPreviewTimer = window.setTimeout(function () {
+          directPreviewTimer = null;
+          if (pinnedRelationshipKey || hoveredRelationship !== target || directRelationshipBlocked()) return;
+          previewRelationship(target, { direct: true });
+        }, reducedMotionQuery && reducedMotionQuery.matches ? 0 : 90);
+      }
+      function relationshipHitTarget(key) {
+        return relationshipHitTargets.find(function (target) {
+          return target.getAttribute('data-relationship-key') === key;
+        }) || null;
+      }
+      function revealPinnedRelationship(record) {
+        function reveal() {
+          if (!record || pinnedRelationshipKey !== record.key) return true;
+          if (!Archify.view || typeof Archify.view.reveal !== 'function') return false;
+          Archify.view.reveal([record.from, record.to], { reason: 'relationship-direct' });
+          return true;
+        }
+        if (!reveal()) requestAnimationFrame(reveal);
+      }
+      function inspectRelationship(key, options) {
+        options = options || {};
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (directPreviewTimer) window.clearTimeout(directPreviewTimer);
+        directPreviewTimer = null;
+        hoveredRelationship = null;
+        focusedRelationship = null;
+        if (pinnedRelationshipKey === key) {
+          if (options.toggle === false) return true;
+          clear({ updateUrl: options.updateUrl !== false });
+          return true;
+        }
+        var record = relationshipRecordForKey(key);
+        if (!record) return false;
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        set(record.from, { toggle: false, updateUrl: false });
+        var row = Array.prototype.slice.call(relationshipList.querySelectorAll('[data-relationship-key]')).find(function (candidate) {
+          return candidate.getAttribute('data-relationship-key') === key;
+        });
+        if (!row) return false;
+        previewRelationship(row);
+        pinnedRelationship = row;
+        pinnedRelationshipKey = key;
+        svg.setAttribute('data-relationship-pin-active', key);
+        var target = relationshipHitTarget(key);
+        if (target) target.setAttribute('aria-pressed', 'true');
+        renderRelationshipCopyAction();
+        summary.textContent = viewerText('viewer.passport.relationship.pinned', {
+          from: record.fromLabel,
+          to: record.toLabel,
+          label: record.label
+        });
+        revealPinnedRelationship(record);
+        if (options.updateUrl !== false && record.id) {
+          try { history.replaceState(null, '', location.pathname + location.search + '#relation=' + encodeURIComponent(record.id)); } catch (_) {}
+        }
+        return true;
+      }
+      function inspectRelationshipById(id, options) {
+        var record = relationshipHitRecords().find(function (item) { return item.id === id; });
+        return record ? inspectRelationship(record.key, options) : false;
+      }
+      function installRelationshipHitTargets() {
+        if (html.getAttribute('data-embed') === 'true') return 0;
+        var records = relationshipHitRecords();
+        if (!records.length) return 0;
+        relationshipHitOverlay = document.createElementNS(svgNamespace, 'g');
+        relationshipHitOverlay.setAttribute('class', 'relationship-hit-overlay');
+        relationshipHitOverlay.setAttribute('data-relationship-hit-overlay', '');
+        relationshipHitOverlay.setAttribute('role', 'group');
+        relationshipHitOverlay.setAttribute('aria-label', viewerText('viewer.passport.relationship.explorer'));
+        var relationshipHelp = document.createElementNS(svgNamespace, 'desc');
+        relationshipHelp.id = 'archify-relationship-help';
+        relationshipHelp.textContent = viewerText('viewer.passport.relationship.help');
+        relationshipHitOverlay.appendChild(relationshipHelp);
+        records.forEach(function (record, index) {
+          var target = document.createElementNS(svgNamespace, 'g');
+          target.setAttribute('class', 'relationship-hit-target');
+          target.setAttribute('data-relationship-hit-key', record.key);
+          target.setAttribute('data-relationship-key', record.key);
+          target.setAttribute('data-relationship-from', record.from);
+          target.setAttribute('data-relationship-to', record.to);
+          if (record.id) target.setAttribute('data-relationship-id', record.id);
+          target.setAttribute('role', 'button');
+          target.setAttribute('tabindex', index === 0 ? '0' : '-1');
+          target.setAttribute('aria-pressed', 'false');
+          target.setAttribute('aria-describedby', relationshipHelp.id);
+          var description = viewerText('viewer.passport.relationship.inspect', {
+            index: index + 1,
+            total: records.length,
+            from: record.fromLabel,
+            to: record.toLabel,
+            label: record.label
+          });
+          target.setAttribute('aria-label', description);
+          var title = document.createElementNS(svgNamespace, 'title');
+          title.textContent = record.fromLabel + ' \u2192 ' + record.toLabel + ' \u00b7 ' + record.label;
+          target.appendChild(title);
+          record.shapes.forEach(function (shape) {
+            target.appendChild(relationshipHitGeometry(shape));
+            target.appendChild(relationshipHitGeometry(shape, 'relationship-focus-rail'));
+          });
+          if (target.childNodes.length > 1) {
+            relationshipHitTargets.push(target);
+            relationshipHitOverlay.appendChild(target);
+          }
+        });
+        if (!relationshipHitTargets.length) return 0;
+        var firstNode = svg.querySelector('[data-node-id]');
+        var nodeLayer = firstNode;
+        while (nodeLayer && nodeLayer.parentNode && nodeLayer.parentNode !== svg) nodeLayer = nodeLayer.parentNode;
+        if (nodeLayer && nodeLayer.parentNode === svg) svg.insertBefore(relationshipHitOverlay, nodeLayer);
+        else svg.appendChild(relationshipHitOverlay);
+
+        relationshipHitOverlay.addEventListener('pointerdown', function (event) {
+          if (event.target.closest('[data-relationship-hit-key]')) event.stopPropagation();
+        });
+        relationshipHitOverlay.addEventListener('pointerover', function (event) {
+          if (event.pointerType === 'touch') return;
+          if (finePointerQuery && !finePointerQuery.matches) return;
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target || directRelationshipBlocked() || pinnedRelationshipKey) return;
+          if (event.relatedTarget && target.contains(event.relatedTarget)) return;
+          hoveredRelationship = target;
+          scheduleDirectRelationshipPreview(target);
+        });
+        relationshipHitOverlay.addEventListener('pointerout', function (event) {
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target || (event.relatedTarget && target.contains(event.relatedTarget))) return;
+          if (hoveredRelationship === target) hoveredRelationship = null;
+          syncRelationshipPreview();
+        });
+        relationshipHitOverlay.addEventListener('focusin', function (event) {
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target || directRelationshipBlocked()) return;
+          focusedRelationship = target;
+          if (!pinnedRelationshipKey) previewRelationship(target, { direct: true });
+        });
+        relationshipHitOverlay.addEventListener('focusout', function (event) {
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target || (event.relatedTarget && target.contains(event.relatedTarget))) return;
+          if (focusedRelationship === target) focusedRelationship = null;
+          syncRelationshipPreview();
+        });
+        relationshipHitOverlay.addEventListener('click', function (event) {
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target || directRelationshipBlocked()) return;
+          event.preventDefault();
+          event.stopPropagation();
+          focusedRelationship = null;
+          hoveredRelationship = null;
+          inspectRelationship(target.getAttribute('data-relationship-key'));
+        });
+        relationshipHitOverlay.addEventListener('keydown', function (event) {
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target) return;
+          if (event.key === 'Escape' && pinnedRelationshipKey) {
+            event.preventDefault();
+            clear({ updateUrl: false });
+            return;
+          }
+          if (event.key === 'Enter' || event.key === ' ') {
+            event.preventDefault();
+            focusedRelationship = null;
+            hoveredRelationship = null;
+            inspectRelationship(target.getAttribute('data-relationship-key'));
+            return;
+          }
+          if (event.key !== 'ArrowRight' && event.key !== 'ArrowLeft' && event.key !== 'ArrowDown' && event.key !== 'ArrowUp' && event.key !== 'Home' && event.key !== 'End') return;
+          var index = relationshipHitTargets.indexOf(target);
+          if (event.key === 'Home') index = 0;
+          else if (event.key === 'End') index = relationshipHitTargets.length - 1;
+          else if (event.key === 'ArrowRight' || event.key === 'ArrowDown') index = (index + 1) % relationshipHitTargets.length;
+          else index = (index - 1 + relationshipHitTargets.length) % relationshipHitTargets.length;
+          event.preventDefault();
+          relationshipHitTargets.forEach(function (item, itemIndex) { item.setAttribute('tabindex', itemIndex === index ? '0' : '-1'); });
+          try { relationshipHitTargets[index].focus({ preventScroll: true }); }
+          catch (_) { try { relationshipHitTargets[index].focus(); } catch (_) {} }
+        });
+        return relationshipHitTargets.length;
+      }
+      function renderRelationshipLens(id, byId) {
+        hoveredRelationship = null;
+        focusedRelationship = null;
+        clearRelationshipPreview({ clearPin: true });
+        renderPassport(id, byId[id]);
+        var relationships = relationshipsFor(id, byId);
+        chip.removeAttribute('data-relations-expanded');
+        relationsBtn.setAttribute('aria-expanded', 'false');
+        relationsBtn.textContent = viewerCount('viewer.passport.relationship.count', relationships.length);
+        relationsBtn.setAttribute('aria-label', viewerCount('viewer.passport.relationship.show', relationships.length));
+        var counts = { out: 0, in: 0, loop: 0 };
+        relationships.forEach(function (relationship) { counts[relationship.direction] += 1; });
+        summary.textContent = viewerText('viewer.passport.relationship.summary', {
+          out: counts.out,
+          in: counts.in,
+          loops: counts.loop ? viewerText('viewer.passport.relationship.loops', { count: counts.loop }) : ''
+        });
+        renderReachabilityControls(id);
+        relationshipList.textContent = '';
+        if (!relationships.length) {
+          var empty = document.createElement('p');
+          empty.className = 'relationship-lens-empty';
+          empty.textContent = viewerText('viewer.passport.relationship.none');
+          relationshipList.appendChild(empty);
+          return;
+        }
+
+        [
+          { id: 'out', label: viewerText('viewer.passport.relationship.group.out') },
+          { id: 'in', label: viewerText('viewer.passport.relationship.group.in') },
+          { id: 'loop', label: viewerText('viewer.passport.relationship.group.loop') }
+        ].forEach(function (group) {
+          var items = relationships.filter(function (relationship) { return relationship.direction === group.id; });
+          if (!items.length) return;
+          var section = document.createElement('div');
+          section.className = 'relationship-lens-group';
+          var heading = document.createElement('span');
+          heading.className = 'relationship-lens-group-title';
+          heading.textContent = group.label + ' · ' + items.length;
+          section.appendChild(heading);
+          items.forEach(function (relationship) {
+            var button = document.createElement('button');
+            button.type = 'button';
+            button.className = 'relationship-lens-row';
+            button.setAttribute('data-direction', relationship.direction);
+            button.setAttribute('data-relationship-target', relationship.neighborId);
+            button.setAttribute('data-relationship-key', relationship.key);
+            button.setAttribute('data-relationship-from', relationship.from);
+            button.setAttribute('data-relationship-to', relationship.to);
+            if (relationship.id) button.setAttribute('data-relationship-id', relationship.id);
+            button.setAttribute('aria-label', viewerText('viewer.passport.relationship.row', {
+              group: group.label,
+              relationship: relationship.label,
+              neighbor: relationship.neighborLabel
+            }));
+            var direction = document.createElement('span');
+            direction.className = 'relationship-lens-direction';
+            direction.setAttribute('aria-hidden', 'true');
+            direction.textContent = viewerText(relationship.direction === 'out'
+              ? 'viewer.passport.relationship.direction.out'
+              : relationship.direction === 'in'
+                ? 'viewer.passport.relationship.direction.in'
+                : 'viewer.passport.relationship.direction.loop');
+            var target = document.createElement('strong');
+            target.textContent = relationship.neighborLabel;
+            var relation = document.createElement('small');
+            relation.textContent = relationship.label;
+            button.appendChild(direction);
+            button.appendChild(target);
+            button.appendChild(relation);
+            section.appendChild(button);
+          });
+          relationshipList.appendChild(section);
+        });
+      }
+      var lensFrame = 0;
+      function placeRelationshipLens() {
+        lensFrame = 0;
+        if (chip.hidden || activeIds.length !== 1) return;
+        var node = svg.querySelector('[data-node-id="' + activeIds[0] + '"]');
+        if (!node) return;
+        var containerRect = container.getBoundingClientRect();
+        var nodeRect = node.getBoundingClientRect();
+        if (containerRect.bottom <= 0 || containerRect.top >= window.innerHeight) return;
+        var padding = window.innerWidth <= 720 ? 8 : 16;
+        var visibleTop = Math.max(padding, -containerRect.top + padding);
+        var visibleBottom = Math.min(containerRect.height - padding, window.innerHeight - containerRect.top - padding);
+        var maxTop = Math.max(padding, visibleBottom - chip.offsetHeight);
+        var minTop = Math.min(visibleTop, maxTop);
+        var nodeCenter = nodeRect.top - containerRect.top + nodeRect.height / 2;
+        var mobile = window.innerWidth <= 720;
+        var previewingOnMobile = mobile && chip.getAttribute('data-relationship-previewing') === 'true';
+        var compactOnMobile = mobile && chip.getAttribute('data-relations-expanded') !== 'true';
+        var preferred;
+        if (compactOnMobile) {
+          var nodeTop = nodeRect.top - containerRect.top;
+          var nodeBottom = nodeRect.bottom - containerRect.top;
+          var gap = 10;
+          var above = nodeTop - chip.offsetHeight - gap;
+          var below = nodeBottom + gap;
+          if (above >= visibleTop) preferred = above;
+          else if (below + chip.offsetHeight <= visibleBottom - 56) preferred = below;
+          else preferred = nodeCenter < (visibleTop + visibleBottom) / 2
+            ? Math.max(minTop, visibleBottom - chip.offsetHeight - 56)
+            : visibleTop;
+        } else if (previewingOnMobile) {
+          var pinnedTop = visibleTop;
+          var pinnedBottom = Math.max(minTop, visibleBottom - chip.offsetHeight - 56);
+          preferred = nodeCenter < (visibleTop + visibleBottom) / 2 ? pinnedBottom : pinnedTop;
+        } else {
+          preferred = nodeCenter - chip.offsetHeight / 2;
+        }
+        var top = Math.max(minTop, Math.min(maxTop, preferred));
+        var chipRect = chip.getBoundingClientRect();
+        var safeGap = 10;
+        var protectViewerChrome = !mobile || compactOnMobile || previewingOnMobile;
+        var protectedRects = (protectViewerChrome
+          ? [svg.querySelector('[data-legend]'), container.querySelector('.diagram-nav')]
+          : [])
+          .filter(function (element) {
+            if (!element || element.hidden) return false;
+            var style = window.getComputedStyle(element);
+            return style.display !== 'none' && style.visibility !== 'hidden';
+          })
+          .map(function (element) { return element.getBoundingClientRect(); })
+          .filter(function (rect) {
+            return rect.width > 0 && rect.height > 0 &&
+              chipRect.left < rect.right + safeGap && chipRect.right > rect.left - safeGap;
+          });
+        if (protectedRects.length) {
+          var candidates = [top, minTop, maxTop];
+          protectedRects.forEach(function (rect) {
+            candidates.push(
+              rect.top - containerRect.top - chip.offsetHeight - safeGap,
+              rect.bottom - containerRect.top + safeGap
+            );
+          });
+          var valid = candidates.map(function (candidate) {
+            return Math.max(minTop, Math.min(maxTop, candidate));
+          }).filter(function (candidate, index, all) {
+            if (all.indexOf(candidate) !== index) return false;
+            var candidateTop = containerRect.top + candidate;
+            var candidateBottom = candidateTop + chip.offsetHeight;
+            return protectedRects.every(function (rect) {
+              return candidateBottom <= rect.top - safeGap || candidateTop >= rect.bottom + safeGap;
+            });
+          });
+          valid.sort(function (first, second) {
+            return Math.abs(first - preferred) - Math.abs(second - preferred);
+          });
+          if (valid.length) top = valid[0];
+        }
+        chip.style.top = Math.round(top) + 'px';
+        if (Archify.radar && typeof Archify.radar.sync === 'function') Archify.radar.sync();
+      }
+      function requestLensPlacement() {
+        if (lensFrame) return;
+        lensFrame = requestAnimationFrame(placeRelationshipLens);
+      }
+      function clear(options) {
+        options = options || {};
+        var restoreNode = options.restoreFocus === true && activeIds.length === 1
+          ? svg.querySelector('[data-node-id="' + activeIds[0] + '"]')
+          : null;
+        clearReachability({ updateUrl: false });
+        if (Archify.intentTrace && typeof Archify.intentTrace.clear === 'function') {
+          Archify.intentTrace.clear({ announce: false });
+        }
+        hoveredRelationship = null;
+        focusedRelationship = null;
+        clearRelationshipPreview({ clearPin: true });
+        activeIds = [];
+        svg.removeAttribute('data-focus-active');
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-focus-match');
+          node.removeAttribute('data-focus-selected');
+          node.setAttribute('aria-pressed', 'false');
+        });
+        edges().forEach(function (edge) { edge.removeAttribute('data-focus-match'); });
+        chip.hidden = true;
+        label.textContent = '';
+        detail.textContent = '';
+        detail.hidden = true;
+        kind.textContent = '';
+        kind.hidden = true;
+        context.textContent = '';
+        context.hidden = true;
+        tag.textContent = '';
+        tag.hidden = true;
+        semanticId.textContent = '';
+        semanticId.hidden = true;
+        evidence.hidden = true;
+        evidenceLinks.textContent = '';
+        repositoryLink.removeAttribute('href');
+        repositoryLink.textContent = '';
+        summary.textContent = '';
+        reachSection.hidden = true;
+        upstreamCount.textContent = '0';
+        downstreamCount.textContent = '0';
+        upstreamBtn.disabled = true;
+        downstreamBtn.disabled = true;
+        relationshipList.textContent = '';
+        copyBtn.textContent = viewerText('viewer.passport.copy');
+        copyBtn.setAttribute('aria-label', viewerText('viewer.passport.copy.focus'));
+        relationsBtn.textContent = viewerText('viewer.passport.relations');
+        relationsBtn.setAttribute('aria-label', viewerText('viewer.passport.relations.show'));
+        relationsBtn.setAttribute('aria-expanded', 'false');
+        chip.removeAttribute('data-relations-expanded');
+        chip.style.removeProperty('top');
+        if (options.preserveView !== true && Archify.view && typeof Archify.view.reset === 'function') {
+          Archify.view.reset({ automatic: true });
+        }
+        if (options.updateUrl !== false) {
+          try { history.replaceState(null, '', location.pathname + location.search); } catch (_) {}
+        }
+        if (restoreNode) {
+          try { restoreNode.focus({ preventScroll: true }); }
+          catch (_) { try { restoreNode.focus(); } catch (_) {} }
+        }
+      }
+
+      function setMany(ids, options) {
+        options = options || {};
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (Archify.semanticLens && Archify.semanticLens.active()) {
+          Archify.semanticLens.clear({ updateUrl: false, preserveView: true, closePanel: true });
+        }
+        if (options.preserveRoute !== true && Archify.routeProbe && typeof Archify.routeProbe.clear === 'function') {
+          Archify.routeProbe.clear({ updateUrl: false, restoreFocus: false });
+        }
+        var nodeList = nodes();
+        var byId = {};
+        nodeList.forEach(function (node) { byId[node.getAttribute('data-node-id')] = node; });
+        var normalized = [];
+        (ids || []).forEach(function (id) {
+          if (byId[id] && normalized.indexOf(id) === -1) normalized.push(id);
+        });
+        if (!normalized.length) return false;
+        if (normalized.length === activeIds.length && normalized.every(function (id, index) { return activeIds[index] === id; }) && options.toggle !== false) {
+          clear();
+          return true;
+        }
+
+        clear({ updateUrl: false, preserveView: true });
+        activeIds = normalized;
+        var selected = {};
+        var related = {};
+        var seenEdges = {};
+        var matchedEdges = 0;
+        normalized.forEach(function (id) { selected[id] = true; related[id] = true; });
+        var selectionMode = options.mode === 'selection' || normalized.length > 1;
+
+        edges().forEach(function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          var match = selectionMode ? selected[from] && selected[to] : selected[from] || selected[to];
+          if (!match) return;
+          edge.setAttribute('data-focus-match', '');
+          if (!selectionMode) { related[from] = true; related[to] = true; }
+          var edgeKey = edge.getAttribute('data-edge-key') || (from + '\u0000' + to + '\u0000' + (edge.getAttribute('data-edge-label') || ''));
+          if (!seenEdges[edgeKey]) { seenEdges[edgeKey] = true; matchedEdges += 1; }
+        });
+        nodeList.forEach(function (node) {
+          var nodeId = node.getAttribute('data-node-id');
+          if (related[nodeId]) node.setAttribute('data-focus-match', '');
+          if (selected[nodeId]) {
+            node.setAttribute('data-focus-selected', '');
+            node.setAttribute('aria-pressed', 'true');
+          }
+        });
+        svg.setAttribute('data-focus-active', normalized.join(' '));
+        var defaultLabel = normalized.length === 1
+          ? nodeLabel(byId[normalized[0]], normalized[0])
+          : viewerText('viewer.guided.chapter.selectedNodes', { count: normalized.length });
+        label.textContent = options.label || defaultLabel;
+        chip.hidden = options.hideChip === true || normalized.length !== 1 || selectionMode;
+        if (!chip.hidden) {
+          renderRelationshipLens(normalized[0], byId);
+          requestLensPlacement();
+        }
+        if (options.updateUrl !== false) {
+          var key = options.urlKey || 'focus';
+          var value = options.urlValue || normalized[0];
+          try { history.replaceState(null, '', location.pathname + location.search + '#' + key + '=' + encodeURIComponent(value)); } catch (_) {}
+        }
+        return true;
+      }
+
+      function set(id, options) {
+        options = options || {};
+        options.mode = 'neighborhood';
+        return setMany([id], options);
+      }
+
+      function fallbackCopy(value) {
+        var field = document.createElement('textarea');
+        field.value = value;
+        field.setAttribute('readonly', '');
+        field.style.position = 'fixed';
+        field.style.opacity = '0';
+        document.body.appendChild(field);
+        field.select();
+        var copied = false;
+        try { copied = document.execCommand('copy'); } catch (_) {}
+        field.remove();
+        return copied;
+      }
+
+      function copyFocusLink() {
+        if (activeIds.length !== 1) return Promise.resolve(false);
+        var record = pinnedRelationshipRecord();
+        var relationId = record && record.id;
+        var value = location.href.replace(/#.*$/, '') + (relationId
+          ? '#relation=' + encodeURIComponent(relationId)
+          : '#focus=' + encodeURIComponent(activeIds[0]) + (reachabilityMode ? '&reach=' + reachabilityMode : ''));
+        var copy = navigator.clipboard && typeof navigator.clipboard.writeText === 'function'
+          ? navigator.clipboard.writeText(value).then(function () { return true; }).catch(function () { return fallbackCopy(value); })
+          : Promise.resolve(fallbackCopy(value));
+        return copy.then(function (copied) {
+          copyBtn.textContent = viewerText(copied ? 'viewer.common.copied' : 'viewer.common.copyFailed');
+          copyBtn.setAttribute('aria-label', copied
+            ? viewerText(relationId ? 'viewer.passport.copy.pinned.success' : 'viewer.passport.copy.focused.success')
+            : viewerText(relationId ? 'viewer.passport.copy.pinned.failed' : 'viewer.passport.copy.focused.failed'));
+          window.setTimeout(function () {
+            renderRelationshipCopyAction();
+          }, 1600);
+          return copied;
+        });
+      }
+
+      svg.addEventListener('click', function (event) {
+        if (container.getAttribute('data-just-panned') === 'true') return;
+        var node = event.target.closest('[data-node-id]');
+        if (node) {
+          var id = node.getAttribute('data-node-id');
+          set(id);
+          if (activeIds.indexOf(id) !== -1 && Archify.view && typeof Archify.view.reveal === 'function') {
+            Archify.view.reveal([id], { includeNeighbors: true, reason: 'focus' });
+          }
+        }
+        else if (activeIds.length) clear();
+      });
+      svg.addEventListener('keydown', function (event) {
+        var node = event.target.closest('[data-node-id]');
+        if (!node || (event.key !== 'Enter' && event.key !== ' ')) return;
+        event.preventDefault();
+        var id = node.getAttribute('data-node-id');
+        set(id);
+        if (activeIds.indexOf(id) !== -1 && Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal([id], { includeNeighbors: true, reason: 'focus' });
+        }
+      });
+      clearBtn.addEventListener('click', function () { clear({ restoreFocus: true }); });
+      copyBtn.addEventListener('click', copyFocusLink);
+      upstreamBtn.addEventListener('click', function () { applyReachability('upstream'); });
+      downstreamBtn.addEventListener('click', function () { applyReachability('downstream'); });
+      relationsBtn.addEventListener('click', function () {
+        var expanded = chip.getAttribute('data-relations-expanded') === 'true';
+        if (expanded) chip.removeAttribute('data-relations-expanded');
+        else chip.setAttribute('data-relations-expanded', 'true');
+        relationsBtn.setAttribute('aria-expanded', expanded ? 'false' : 'true');
+        relationsBtn.setAttribute('aria-label', viewerText(expanded
+          ? 'viewer.passport.relations.show'
+          : 'viewer.passport.relations.hide'));
+        requestLensPlacement();
+      });
+      relationshipList.addEventListener('click', function (event) {
+        var button = event.target.closest('[data-relationship-target]');
+        if (!button) return;
+        var id = button.getAttribute('data-relationship-target');
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        set(id, { toggle: false });
+        if (Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal([id], { includeNeighbors: true, reason: 'relationship' });
+        }
+        var node = svg.querySelector('[data-node-id="' + id + '"]');
+        if (node) {
+          try { node.focus({ preventScroll: true }); } catch (_) { try { node.focus(); } catch (_) {} }
+        }
+      });
+      relationshipList.addEventListener('pointerover', function (event) {
+        if (event.pointerType === 'touch') return;
+        if (finePointerQuery && !finePointerQuery.matches) return;
+        var button = event.target.closest('[data-relationship-key]');
+        if (!button || !relationshipList.contains(button)) return;
+        if (event.relatedTarget && button.contains(event.relatedTarget)) return;
+        hoveredRelationship = button;
+        syncRelationshipPreview();
+      });
+      relationshipList.addEventListener('pointerout', function (event) {
+        var button = event.target.closest('[data-relationship-key]');
+        if (!button || (event.relatedTarget && button.contains(event.relatedTarget))) return;
+        if (hoveredRelationship === button) hoveredRelationship = null;
+        syncRelationshipPreview();
+      });
+      relationshipList.addEventListener('focusin', function (event) {
+        var button = event.target.closest('[data-relationship-key]');
+        if (!button) return;
+        focusedRelationship = button;
+        syncRelationshipPreview();
+      });
+      relationshipList.addEventListener('focusout', function (event) {
+        var button = event.target.closest('[data-relationship-key]');
+        if (!button || (event.relatedTarget && button.contains(event.relatedTarget))) return;
+        if (focusedRelationship === button) focusedRelationship = null;
+        syncRelationshipPreview();
+      });
+      relationshipList.addEventListener('keydown', function (event) {
+        if (event.key !== 'ArrowDown' && event.key !== 'ArrowUp' && event.key !== 'Home' && event.key !== 'End') return;
+        var buttons = Array.prototype.slice.call(relationshipList.querySelectorAll('[data-relationship-target]'));
+        if (!buttons.length) return;
+        var index = buttons.indexOf(document.activeElement);
+        if (event.key === 'Home') index = 0;
+        else if (event.key === 'End') index = buttons.length - 1;
+        else if (event.key === 'ArrowDown') index = Math.min(buttons.length - 1, Math.max(0, index + 1));
+        else index = Math.max(0, index < 0 ? 0 : index - 1);
+        event.preventDefault();
+        buttons[index].focus();
+      });
+      document.addEventListener('click', function (event) {
+        var target = event.target;
+        if (chip.hidden || !target || typeof target.closest !== 'function' || chip.contains(target)) return;
+        if (container.getAttribute('data-just-panned') === 'true') return;
+        if (target.closest('[data-node-id], [data-relationship-hit-key], .overview-map')) return;
+        clear();
+      }, true);
+      window.addEventListener('scroll', requestLensPlacement, { passive: true });
+      window.addEventListener('resize', requestLensPlacement);
+      container.addEventListener('scroll', requestLensPlacement, { passive: true });
+      document.addEventListener('visibilitychange', function () {
+        if (document.hidden) removeRelationshipPulse();
+      });
+      function syncRelationshipMotionPreference(event) {
+        if (event.matches) removeRelationshipPulse();
+      }
+      if (reducedMotionQuery) {
+        if (typeof reducedMotionQuery.addEventListener === 'function') {
+          reducedMotionQuery.addEventListener('change', syncRelationshipMotionPreference);
+        } else if (typeof reducedMotionQuery.addListener === 'function') {
+          reducedMotionQuery.addListener(syncRelationshipMotionPreference);
+        }
+      }
+
+      installRelationshipHitTargets();
+
+      function syncFocusFromHash() {
+        try {
+          var params = new URLSearchParams(location.hash.replace(/^#/, ''));
+          var relation = params.get('relation');
+          var initial = params.get('focus');
+          var reach = params.get('reach');
+          if (relation) {
+            if (html.getAttribute('data-embed') === 'true' ||
+                !inspectRelationshipById(relation, { updateUrl: false, toggle: false })) clear({ updateUrl: false });
+          }
+          else if (initial) {
+            if (set(initial, { updateUrl: false, toggle: false }) &&
+                (reach === 'upstream' || reach === 'downstream')) {
+              applyReachability(reach, { updateUrl: false, toggle: false, reveal: false });
+            }
+          }
+          else if (!params.get('view')) clear({ updateUrl: false });
+        } catch (_) {}
+      }
+
+      window.addEventListener('hashchange', syncFocusFromHash);
+      syncFocusFromHash();
+
+      return {
+        set: set,
+        setMany: setMany,
+        clear: clear,
+        copyLink: copyFocusLink,
+        reach: applyReachability,
+        clearReach: clearReachability,
+        reachabilitySnapshot: reachabilitySnapshot,
+        inspectRelationship: inspectRelationship,
+        inspectRelationshipById: inspectRelationshipById,
+        reposition: requestLensPlacement,
+        relationship: function () {
+          var record = pinnedRelationshipRecord();
+          return record ? { id: record.id || null, key: record.key, from: record.from, to: record.to, label: record.label } : null;
+        },
+        reachability: function () {
+          return activeReachability ? {
+            direction: activeReachability.direction,
+            originId: activeReachability.originId,
+            nodeIds: activeReachability.nodeIds.slice(),
+            edgeKeys: activeReachability.edgeKeys.slice(),
+            maxDepth: activeReachability.maxDepth
+          } : null;
+        },
+        active: function () { return activeIds.length === 0 ? null : (activeIds.length === 1 ? activeIds[0] : activeIds.slice()); }
+      };
+    })();
+
+    /* ============================================================
+       Intent Trace — temporary one-hop topology before durable focus.
+       Fine-pointer hover and keyboard focus share the same stable-ID preview;
+       touch continues directly to the existing click-to-focus contract.
+       ============================================================ */
+    Archify.intentTrace = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector(':scope > svg');
+      var status = document.getElementById('intent-trace-status');
+      var namespace = 'http://www.w3.org/2000/svg';
+      var activeId = null;
+      var hoveredNode = null;
+      var focusedNode = null;
+      var enterTimer = null;
+
+      function nodes() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-node-id]'));
+      }
+      function edges() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'));
+      }
+      function nodeLabel(node, fallback) {
+        return node.getAttribute('data-node-label') ||
+          (node.getAttribute('aria-label') || fallback).replace(/^Focus\s+/, '').split(',')[0];
+      }
+      function finePointer() {
+        return !window.matchMedia || window.matchMedia('(hover: hover) and (pointer: fine)').matches;
+      }
+      function reducedMotion() {
+        return !!(window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches);
+      }
+      function blocked() {
+        return html.getAttribute('data-embed') === 'true' ||
+          html.getAttribute('data-guide-open') === 'true' ||
+          container.classList.contains('is-panning') ||
+          svg.hasAttribute('data-lens-active') ||
+          svg.hasAttribute('data-story-active') ||
+          svg.hasAttribute('data-relationship-preview-active') ||
+          !!(Archify.routeProbe && typeof Archify.routeProbe.active === 'function' && Archify.routeProbe.active()) ||
+          !!(Archify.focus && typeof Archify.focus.active === 'function' && Archify.focus.active());
+      }
+      function edgeShapes(edge) {
+        if (/^(path|line|polyline)$/i.test(edge.tagName)) return [edge];
+        return Array.prototype.slice.call(edge.querySelectorAll('path, line, polyline'));
+      }
+      function removeOverlay() {
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-intent-trace-overlay]'), function (overlay) {
+          overlay.remove();
+        });
+      }
+      function clear(options) {
+        options = options || {};
+        if (enterTimer) window.clearTimeout(enterTimer);
+        enterTimer = null;
+        activeId = null;
+        svg.removeAttribute('data-intent-trace-active');
+        removeOverlay();
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-intent-trace-match');
+          node.removeAttribute('data-intent-trace-selected');
+        });
+        edges().forEach(function (edge) { edge.removeAttribute('data-intent-trace-match'); });
+        if (options.announce !== false) status.textContent = '';
+      }
+      function traceGeometry(shape, direction) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-labelledby');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.removeAttribute('data-intent-trace-match');
+        clone.removeAttribute('data-intent-trace-selected');
+        clone.setAttribute('class', 'intent-trace-flow');
+        clone.setAttribute('data-direction', direction);
+        clone.setAttribute('pathLength', '1');
+        return clone;
+      }
+      function show(id, options) {
+        options = options || {};
+        if (!id || blocked()) {
+          clear({ announce: false });
+          return false;
+        }
+        if (activeId === id) return true;
+        clear({ announce: false });
+        var nodeList = nodes();
+        var edgeList = edges();
+        var byId = {};
+        nodeList.forEach(function (node) { byId[node.getAttribute('data-node-id')] = node; });
+        var selected = byId[id];
+        if (!selected) return false;
+
+        var overlay = document.createElementNS(namespace, 'g');
+        overlay.setAttribute('class', 'intent-trace-overlay');
+        overlay.setAttribute('data-intent-trace-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        var related = {};
+        var seen = {};
+        var counts = { out: 0, in: 0, loop: 0 };
+        related[id] = true;
+
+        edgeList.forEach(function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          if (from !== id && to !== id) return;
+          var direction = from === id && to === id ? 'loop' : (from === id ? 'out' : 'in');
+          var key = edge.getAttribute('data-edge-key') ||
+            (from + '\u0000' + to + '\u0000' + (edge.getAttribute('data-edge-label') || ''));
+          if (!seen[key]) {
+            seen[key] = true;
+            counts[direction] += 1;
+          }
+          related[from] = true;
+          related[to] = true;
+          edge.setAttribute('data-intent-trace-match', '');
+          var wrapper = document.createElementNS(namespace, 'g');
+          if (edge.hasAttribute('transform')) wrapper.setAttribute('transform', edge.getAttribute('transform'));
+          edgeShapes(edge).forEach(function (shape) {
+            wrapper.appendChild(traceGeometry(shape, direction));
+          });
+          if (wrapper.childNodes.length) overlay.appendChild(wrapper);
+        });
+
+        nodeList.forEach(function (node) {
+          var nodeId = node.getAttribute('data-node-id');
+          if (related[nodeId]) node.setAttribute('data-intent-trace-match', '');
+          if (nodeId === id) node.setAttribute('data-intent-trace-selected', '');
+        });
+        if (overlay.childNodes.length) {
+          var firstEdge = edgeList[0];
+          var firstNode = svg.querySelector('[data-node-id]');
+          if (firstEdge && firstEdge.parentNode) firstEdge.parentNode.insertBefore(overlay, firstEdge);
+          else if (firstNode) svg.insertBefore(overlay, firstNode);
+          else svg.appendChild(overlay);
+        }
+        activeId = id;
+        svg.setAttribute('data-intent-trace-active', id);
+        if (options.announce === true) {
+          var total = counts.out + counts.in + counts.loop;
+          status.textContent = viewerText('viewer.intent.summary', {
+            label: nodeLabel(selected, id),
+            out: counts.out,
+            in: counts.in,
+            loops: counts.loop ? viewerText('viewer.intent.loops', { count: counts.loop }) : '',
+            total: total
+          });
+        }
+        return true;
+      }
+      function schedule(node) {
+        if (enterTimer) window.clearTimeout(enterTimer);
+        enterTimer = window.setTimeout(function () {
+          enterTimer = null;
+          if (hoveredNode === node) show(node.getAttribute('data-node-id'), { announce: false });
+        }, reducedMotion() ? 0 : 90);
+      }
+      function sync() {
+        var candidate = focusedNode || hoveredNode;
+        if (!candidate) {
+          clear();
+          return;
+        }
+        show(candidate.getAttribute('data-node-id'), { announce: candidate === focusedNode });
+      }
+
+      svg.addEventListener('pointerover', function (event) {
+        var node = event.target.closest('[data-node-id]');
+        if (!node || !finePointer() || event.pointerType === 'touch') return;
+        if (event.relatedTarget && node.contains(event.relatedTarget)) return;
+        hoveredNode = node;
+        schedule(node);
+      });
+      svg.addEventListener('pointerout', function (event) {
+        var node = event.target.closest('[data-node-id]');
+        if (!node || (event.relatedTarget && node.contains(event.relatedTarget))) return;
+        if (hoveredNode === node) hoveredNode = null;
+        sync();
+      });
+      svg.addEventListener('focusin', function (event) {
+        var node = event.target.closest('[data-node-id]');
+        if (!node) return;
+        focusedNode = node;
+        show(node.getAttribute('data-node-id'), { announce: true });
+      });
+      svg.addEventListener('focusout', function (event) {
+        var node = event.target.closest('[data-node-id]');
+        if (!node || (event.relatedTarget && node.contains(event.relatedTarget))) return;
+        if (focusedNode === node) focusedNode = null;
+        sync();
+      });
+      container.addEventListener('pointerdown', function (event) {
+        if (!event.target.closest('[data-node-id]')) clear({ announce: false });
+      });
+      window.addEventListener('blur', function () { clear({ announce: false }); });
+
+      return {
+        show: show,
+        clear: clear,
+        active: function () { return activeId; }
+      };
+    })();
+
+    Archify.guidedViews = (function () {
+      var data = document.getElementById('archify-guided-views-data');
+      var panel = document.getElementById('guided-views');
+      var prev = document.getElementById('guided-view-prev');
+      var next = document.getElementById('guided-view-next');
+      var all = document.getElementById('guided-view-all');
+      var play = document.getElementById('guided-view-play');
+      var playIcon = document.getElementById('guided-view-play-icon');
+      var playLabel = document.getElementById('guided-view-play-label');
+      var beatLink = document.getElementById('guided-view-beat-link');
+      var beatLinkLabel = document.getElementById('guided-view-beat-link-label');
+      var progressBar = document.getElementById('guided-view-progress-bar');
+      var count = document.getElementById('guided-view-count');
+      var handoffReceipt = document.getElementById('guided-view-handoff');
+      var label = document.getElementById('guided-view-label');
+      var note = document.getElementById('guided-view-note');
+      var trail = document.getElementById('guided-view-trail');
+      var storyCaption = document.getElementById('guided-story-caption');
+      var storyCaptionIndex = document.getElementById('guided-story-caption-index');
+      var storyCaptionRoute = document.getElementById('guided-story-caption-route');
+      var storyCaptionDetail = document.getElementById('guided-story-caption-detail');
+      var storyCaptionNext = document.getElementById('guided-story-caption-next');
+      var storyCaptionNextLabel = document.getElementById('guided-story-caption-next-label');
+      var chapterIndex = document.getElementById('guided-view-index');
+      var chapterList = document.getElementById('guided-view-chapters');
+      var shareCue = document.getElementById('share-chapter-cue');
+      var shareCueState = document.getElementById('share-chapter-state');
+      var shareCueCount = document.getElementById('share-chapter-count');
+      var shareCueLabel = document.getElementById('share-chapter-label');
+      var shareCueNote = document.getElementById('share-chapter-note');
+      var shareCueRoute = document.getElementById('share-chapter-route');
+      var shareCueProgress = document.getElementById('share-chapter-progress-bar');
+      var svg = document.querySelector('.diagram-container svg');
+      var views = [];
+      var activeIndex = -1;
+      var playing = false;
+      var storyBeatTimer = null;
+      var storyBeatIndex = -1;
+      var storyBeatStartedAt = 0;
+      var storyBeatElapsedMs = 0;
+      var storyBeatDwellMs = 0;
+      var storyPlaybackGeneration = 0;
+      var storyFollowGeneration = 0;
+      var storyPlaybackScope = 'story';
+      var storyPlaybackComplete = false;
+      var beatLinkFeedbackTimer = null;
+      var momentRestoreGeneration = 0;
+      var storySteps = [];
+      var storyPulseOwnerToken = 0;
+      var storyPulseGeneration = 0;
+      var autoplayPending = false;
+      var VIEW_INTERVAL_MS = 3200;
+      var STORY_FOLLOW_MIN_DWELL_MS = 1100;
+      var STORY_FOLLOW_DURATION_MS = 320;
+      var chapterButtons = [];
+      var handoffGeneration = 0;
+      var currentHandoff = null;
+      var previewGeneration = 0;
+      var pointerPreviewIntent = null;
+      var focusPreviewIntent = null;
+      var activePreviewIndex = -1;
+      var previewOwnerToken = 0;
+
+      try { views = JSON.parse(data.textContent || '[]'); } catch (_) { views = []; }
+      if (!views.length) return { count: 0, active: function () { return null; } };
+      var canonicalNodeIds = {};
+      Array.prototype.forEach.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+        canonicalNodeIds[node.getAttribute('data-node-id')] = true;
+      });
+      views.forEach(function (view) {
+        var seen = {};
+        view.focus = (view.focus || []).filter(function (id) {
+          if (!canonicalNodeIds[id] || seen[id]) return false;
+          seen[id] = true;
+          return true;
+        });
+      });
+      // Establish the compact cold state before exposing the panel so the
+      // full Director cannot flash during first paint. Hash restoration runs
+      // in the same task and replaces this state before paint when valid.
+      panel.setAttribute('data-active-view', 'all');
+      panel.hidden = false;
+      panel.setAttribute('data-view-interval-ms', String(VIEW_INTERVAL_MS));
+      panel.setAttribute('data-story-follow-min-dwell-ms', String(STORY_FOLLOW_MIN_DWELL_MS));
+      buildChapterIndex();
+
+      function reducedMotion() {
+        return !!(window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches);
+      }
+
+      function findNode(id) {
+        return Array.prototype.find.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+          return node.getAttribute('data-node-id') === id;
+        }) || null;
+      }
+
+      function chapterDelta(previous, destination) {
+        var previousFocus = previous ? previous.focus : [];
+        var destinationFocus = destination ? destination.focus : [];
+        var previousIds = {};
+        var destinationIds = {};
+        previousFocus.forEach(function (id) { previousIds[id] = true; });
+        destinationFocus.forEach(function (id) { destinationIds[id] = true; });
+        return {
+          stay: previousFocus.filter(function (id) { return destinationIds[id]; }),
+          enter: destinationFocus.filter(function (id) { return !previousIds[id]; }),
+          leave: previousFocus.filter(function (id) { return !destinationIds[id]; })
+        };
+      }
+
+      function chapterAnchor(previous, destination, outgoingBeatIndex, delta) {
+        if (!previous || !destination) return '';
+        var stayIds = {};
+        delta.stay.forEach(function (id) { stayIds[id] = true; });
+        var activeBeat = outgoingBeatIndex >= 0 ? previous.focus[outgoingBeatIndex] : '';
+        if (activeBeat && stayIds[activeBeat]) return activeBeat;
+        for (var index = previous.focus.length - 1; index >= 0; index -= 1) {
+          if (stayIds[previous.focus[index]]) return previous.focus[index];
+        }
+        return '';
+      }
+
+      function handoffMotionAllowed() {
+        if (document.hidden || reducedMotion()) return false;
+        if (document.documentElement.getAttribute('data-embed') === 'true') return false;
+        if (window.matchMedia && window.matchMedia('print').matches) return false;
+        return !(Archify.motionGovernor && Archify.motionGovernor.capable && Archify.motionGovernor.isPaused());
+      }
+
+      function classifyHandoff(delta, anchor) {
+        var roles = {};
+        delta.stay.forEach(function (id) { roles[id] = 'stay'; });
+        delta.enter.forEach(function (id) { roles[id] = 'enter'; });
+        delta.leave.forEach(function (id) { roles[id] = 'leave'; });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+          var id = node.getAttribute('data-node-id');
+          var role = roles[id] || '';
+          if (role) node.setAttribute('data-chapter-role', role);
+          else node.removeAttribute('data-chapter-role');
+        });
+        svg.setAttribute('data-chapter-handoff', anchor ? 'anchor' : 'no-anchor');
+        if (anchor) svg.setAttribute('data-chapter-anchor', anchor);
+        else svg.removeAttribute('data-chapter-anchor');
+      }
+
+      function drawHandoffAnchor(id) {
+        var node = findNode(id);
+        if (!node) return null;
+        var box;
+        try { box = node.getBBox(); } catch (_) { return null; }
+        var overlay = document.createElementNS('http://www.w3.org/2000/svg', 'g');
+        var ring = document.createElementNS('http://www.w3.org/2000/svg', 'rect');
+        overlay.setAttribute('class', 'chapter-handoff-overlay');
+        overlay.setAttribute('data-chapter-handoff-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        ring.setAttribute('class', 'chapter-handoff-anchor');
+        ring.setAttribute('x', String(box.x - 8));
+        ring.setAttribute('y', String(box.y - 8));
+        ring.setAttribute('width', String(box.width + 16));
+        ring.setAttribute('height', String(box.height + 16));
+        ring.setAttribute('rx', '10');
+        overlay.appendChild(ring);
+        svg.appendChild(overlay);
+        return overlay;
+      }
+
+      function clearHandoffPresentation() {
+        svg.removeAttribute('data-chapter-handoff');
+        svg.removeAttribute('data-chapter-anchor');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-chapter-handoff-overlay]'), function (overlay) { overlay.remove(); });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-chapter-role]'), function (node) { node.removeAttribute('data-chapter-role'); });
+        if (handoffReceipt) {
+          handoffReceipt.hidden = true;
+          handoffReceipt.textContent = '';
+        }
+      }
+
+      function completeHandoff(handoff, outcome) {
+        if (!handoff || currentHandoff !== handoff) return false;
+        if (handoff.holdTimer) clearTimeout(handoff.holdTimer);
+        handoff.holdTimer = null;
+        currentHandoff = null;
+        clearHandoffPresentation();
+        if (handoff.ownerToken && Archify.motionGovernor) Archify.motionGovernor.release(handoff.ownerToken);
+        handoff.resolve({ id: handoff.id, state: outcome || 'complete', anchor: handoff.anchor || null });
+        syncStoryControlsDisabled();
+        syncChapterPreview();
+        return true;
+      }
+
+      function settleHandoff(reason) {
+        var handoff = currentHandoff;
+        if (!handoff) return false;
+        if (handoff.holdTimer) clearTimeout(handoff.holdTimer);
+        handoff.holdTimer = null;
+        if (handoff.camera && handoff.camera.cancel) handoff.camera.cancel(reason || 'settled', true);
+        else if (Archify.view && Archify.view.reveal) Archify.view.reveal(handoff.focus, { instant: true, reason: reason || 'settled' });
+        completeHandoff(handoff, reason || 'settled');
+        return true;
+      }
+
+      function cancelHandoff(reason) {
+        var handoff = currentHandoff;
+        if (!handoff) return false;
+        if (handoff.holdTimer) clearTimeout(handoff.holdTimer);
+        handoff.holdTimer = null;
+        if (handoff.camera && handoff.camera.cancel) handoff.camera.cancel(reason || 'manual', false);
+        completeHandoff(handoff, reason || 'manual');
+        return true;
+      }
+
+      function afterHandoff(callback) {
+        if (!currentHandoff) { callback(); return; }
+        currentHandoff.finished.then(callback);
+      }
+
+      function beginHandoff(previousIndex, nextIndex, previous, destination, outgoingBeatIndex, reason) {
+        if (!Archify.view || !Archify.view.reveal) return null;
+        if (!previous || previousIndex === nextIndex) {
+          Archify.view.reveal(destination.focus, { reason: reason });
+          return null;
+        }
+        var delta = chapterDelta(previous, destination);
+        var anchor = chapterAnchor(previous, destination, outgoingBeatIndex, delta);
+        if (!handoffMotionAllowed()) {
+          Archify.view.reveal(destination.focus, { instant: true, reason: reason });
+          return null;
+        }
+        var resolver;
+        var handoff = {
+          id: ++handoffGeneration,
+          mode: anchor ? 'holding' : 'no-anchor',
+          anchor: anchor,
+          focus: destination.focus.slice(),
+          holdTimer: null,
+          camera: null,
+          ownerToken: 0,
+          finished: new Promise(function (resolve) { resolver = resolve; }),
+          resolve: resolver
+        };
+        currentHandoff = handoff;
+        classifyHandoff(delta, anchor);
+        if (anchor) {
+          drawHandoffAnchor(anchor);
+          var node = findNode(anchor);
+          var nodeLabel = node ? (node.getAttribute('data-node-label') || anchor) : anchor;
+          handoffReceipt.textContent = viewerText('viewer.guided.handoff', {
+            from: (previousIndex + 1 < 10 ? '0' : '') + (previousIndex + 1),
+            to: (nextIndex + 1 < 10 ? '0' : '') + (nextIndex + 1),
+            label: nodeLabel
+          });
+          handoffReceipt.hidden = false;
+        }
+        if (Archify.motionGovernor) {
+          handoff.ownerToken = Archify.motionGovernor.claim('handoff', function () {
+            if (currentHandoff === handoff) settleHandoff('preempted');
+          });
+        }
+        var startCamera = function () {
+          if (currentHandoff !== handoff) return;
+          handoff.holdTimer = null;
+          handoff.mode = 'settling';
+          svg.setAttribute('data-chapter-handoff', anchor ? 'settling' : 'no-anchor');
+          handoff.camera = Archify.view.reveal(destination.focus, { reason: reason, duration: 420 });
+          if (handoff.camera && handoff.camera.finished) {
+            handoff.camera.finished.then(function (outcome) {
+              if (currentHandoff === handoff) completeHandoff(handoff, outcome && outcome.state || 'complete');
+            });
+          } else {
+            completeHandoff(handoff, 'complete');
+          }
+        };
+        if (anchor) handoff.holdTimer = setTimeout(startCamera, 110);
+        else startCamera();
+        return handoff;
+      }
+
+      function centerChapterButton(button) {
+        if (!button || !chapterList) return false;
+        var target = Math.max(0, button.offsetLeft - (chapterList.clientWidth - button.offsetWidth) / 2);
+        if (typeof chapterList.scrollTo === 'function') chapterList.scrollTo({ left: target, behavior: 'auto' });
+        else chapterList.scrollLeft = target;
+        return true;
+      }
+
+      function focusChapterButton(index) {
+        if (!chapterButtons.length) return false;
+        index = Math.max(0, Math.min(chapterButtons.length - 1, index));
+        chapterButtons.forEach(function (button, buttonIndex) {
+          button.setAttribute('tabindex', buttonIndex === index ? '0' : '-1');
+        });
+        chapterButtons[index].focus();
+        centerChapterButton(chapterButtons[index]);
+        return true;
+      }
+
+      function buildChapterIndex() {
+        chapterButtons = [];
+        chapterList.textContent = '';
+        views.forEach(function (view, index) {
+          var item = document.createElement('li');
+          var button = document.createElement('button');
+          button.type = 'button';
+          button.className = 'guided-view-chapter';
+          button.setAttribute('data-guided-view-id', view.id);
+          button.setAttribute('aria-pressed', 'false');
+          button.setAttribute('tabindex', index === 0 ? '0' : '-1');
+          button.setAttribute('aria-label', viewerText('viewer.guided.chapter.open', {
+            index: index + 1,
+            total: views.length,
+            label: view.label,
+            count: view.focus.length
+          }));
+          button.title = view.label + ' — ' + (view.note || viewerText('viewer.guided.chapter.selectedNodes', { count: view.focus.length }));
+          var position = document.createElement('span');
+          position.className = 'guided-view-chapter-index';
+          position.setAttribute('aria-hidden', 'true');
+          position.textContent = (index + 1 < 10 ? '0' : '') + (index + 1);
+          var title = document.createElement('span');
+          title.className = 'guided-view-chapter-title';
+          title.textContent = view.label;
+          var stops = document.createElement('em');
+          stops.className = 'guided-view-chapter-count';
+          stops.textContent = viewerCount('viewer.guided.chapter.stop', view.focus.length);
+          var delta = document.createElement('span');
+          delta.className = 'guided-view-chapter-delta';
+          delta.hidden = true;
+          delta.setAttribute('aria-hidden', 'true');
+          ['stay', 'enter', 'leave'].forEach(function (kind) {
+            var value = document.createElement('span');
+            value.setAttribute('data-delta-kind', kind);
+            delta.appendChild(value);
+          });
+          button.appendChild(position);
+          button.appendChild(title);
+          button.appendChild(stops);
+          button.appendChild(delta);
+          item.appendChild(button);
+          chapterList.appendChild(item);
+          chapterButtons.push(button);
+        });
+      }
+
+      function syncChapterIndex() {
+        chapterButtons.forEach(function (button, index) {
+          var current = index === activeIndex;
+          var stops = button.querySelector('.guided-view-chapter-count');
+          var deltaLabel = button.querySelector('.guided-view-chapter-delta');
+          var position = activeIndex < 0 ? 'available' : (current ? 'current' : (index < activeIndex ? 'before' : 'after'));
+          button.setAttribute('data-chapter-position', position);
+          button.setAttribute('aria-pressed', current ? 'true' : 'false');
+          button.setAttribute('tabindex', current || (activeIndex < 0 && index === 0) ? '0' : '-1');
+          if (current) {
+            stops.hidden = false;
+            deltaLabel.hidden = true;
+            button.removeAttribute('data-chapter-delta');
+            button.setAttribute('aria-label', viewerText('viewer.guided.chapter.current', {
+              index: index + 1,
+              total: views.length,
+              label: views[index].label,
+              count: views[index].focus.length
+            }));
+            button.title = viewerText('viewer.guided.chapter.current.title', {
+              label: views[index].label,
+              count: views[index].focus.length
+            });
+          } else {
+            var delta = chapterDelta(activeIndex >= 0 ? views[activeIndex] : null, views[index]);
+            var compact = '=' + delta.stay.length + ' +' + delta.enter.length + ' \u2212' + delta.leave.length;
+            var expanded = viewerText('viewer.guided.chapter.delta.expanded', {
+              stay: delta.stay.length,
+              enter: delta.enter.length,
+              leave: delta.leave.length
+            });
+            stops.hidden = true;
+            deltaLabel.hidden = false;
+            deltaLabel.querySelector('[data-delta-kind="stay"]').textContent = '=' + delta.stay.length;
+            deltaLabel.querySelector('[data-delta-kind="enter"]').textContent = '+' + delta.enter.length;
+            deltaLabel.querySelector('[data-delta-kind="leave"]').textContent = '\u2212' + delta.leave.length;
+            button.setAttribute('data-chapter-delta', compact);
+            button.setAttribute('aria-label', viewerText('viewer.guided.chapter.delta.aria', {
+              index: index + 1,
+              total: views.length,
+              label: views[index].label,
+              delta: expanded
+            }));
+            button.title = viewerText('viewer.guided.chapter.delta.title', {
+              label: views[index].label,
+              delta: compact
+            });
+          }
+          if (current) button.setAttribute('aria-current', 'step');
+          else button.removeAttribute('aria-current');
+          if (button.parentElement) button.parentElement.setAttribute('data-chapter-position', position);
+        });
+        if (activeIndex >= 0) centerChapterButton(chapterButtons[activeIndex]);
+      }
+
+      function chapterPreviewBlocked() {
+        if (document.hidden || playing || currentHandoff) return true;
+        if (document.documentElement.getAttribute('data-embed') === 'true') return true;
+        if (window.matchMedia && window.matchMedia('print').matches) return true;
+        if (svg.hasAttribute('data-route-picking') || svg.hasAttribute('data-route-active')) return true;
+        if (svg.hasAttribute('data-lens-active') || svg.hasAttribute('data-legend-preview-active')) return true;
+        if (svg.hasAttribute('data-relationship-preview-active') || svg.hasAttribute('data-intent-trace-active')) return true;
+        return activeIndex < 0 && svg.hasAttribute('data-focus-active');
+      }
+
+      function clearChapterPreviewPresentation() {
+        svg.removeAttribute('data-chapter-preview');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-chapter-preview-role]'), function (node) {
+          node.removeAttribute('data-chapter-preview-role');
+        });
+        chapterButtons.forEach(function (button) { button.removeAttribute('data-preview-active'); });
+        activePreviewIndex = -1;
+        if (previewOwnerToken && Archify.motionGovernor) {
+          var token = previewOwnerToken;
+          previewOwnerToken = 0;
+          Archify.motionGovernor.release(token);
+        }
+      }
+
+      function clearChapterPreview(options) {
+        options = options || {};
+        previewGeneration += 1;
+        if (options.clearIntents !== false) {
+          pointerPreviewIntent = null;
+          focusPreviewIntent = null;
+        }
+        clearChapterPreviewPresentation();
+        return true;
+      }
+
+      function winningChapterPreviewIntent() {
+        return [pointerPreviewIntent, focusPreviewIntent].filter(function (intent) {
+          return intent && intent.index >= 0 && intent.index < views.length && intent.index !== activeIndex;
+        }).sort(function (left, right) { return right.generation - left.generation; })[0] || null;
+      }
+
+      function showChapterPreview(index) {
+        if (index < 0 || index >= views.length || index === activeIndex || chapterPreviewBlocked()) {
+          clearChapterPreviewPresentation();
+          return false;
+        }
+        if (activePreviewIndex === index && svg.getAttribute('data-chapter-preview') === views[index].id) return true;
+        clearChapterPreviewPresentation();
+        var delta = chapterDelta(activeIndex >= 0 ? views[activeIndex] : null, views[index]);
+        var roles = {};
+        delta.stay.forEach(function (id) { roles[id] = 'stay'; });
+        delta.enter.forEach(function (id) { roles[id] = 'enter'; });
+        delta.leave.forEach(function (id) { roles[id] = 'leave'; });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+          var role = roles[node.getAttribute('data-node-id')];
+          if (role) node.setAttribute('data-chapter-preview-role', role);
+        });
+        svg.setAttribute('data-chapter-preview', views[index].id);
+        chapterButtons[index].setAttribute('data-preview-active', 'true');
+        activePreviewIndex = index;
+        if (Archify.motionGovernor && Archify.motionGovernor.capable) {
+          previewOwnerToken = Archify.motionGovernor.claim('chapter-preview', function () {
+            previewOwnerToken = 0;
+            clearChapterPreviewPresentation();
+          });
+        }
+        return true;
+      }
+
+      function syncChapterPreview() {
+        var intent = winningChapterPreviewIntent();
+        if (!intent || chapterPreviewBlocked()) {
+          clearChapterPreviewPresentation();
+          return false;
+        }
+        return showChapterPreview(intent.index);
+      }
+
+      function setChapterPreviewIntent(source, index) {
+        var intent = { index: index, generation: ++previewGeneration };
+        if (source === 'pointer') pointerPreviewIntent = intent;
+        else focusPreviewIntent = intent;
+        if (playing) pausePlayback();
+        return syncChapterPreview();
+      }
+
+      function clearChapterPreviewIntent(source, index) {
+        var intent = source === 'pointer' ? pointerPreviewIntent : focusPreviewIntent;
+        if (intent && (typeof index !== 'number' || intent.index === index)) {
+          if (source === 'pointer') pointerPreviewIntent = null;
+          else focusPreviewIntent = null;
+          previewGeneration += 1;
+        }
+        return syncChapterPreview();
+      }
+
+      function hoverCapable() {
+        return !!(window.matchMedia && window.matchMedia('(hover: hover)').matches);
+      }
+
+      function sharePlaybackRequested() {
+        try { return new URLSearchParams(location.search).get('play') === '1'; }
+        catch (_) { return false; }
+      }
+
+      autoplayPending = sharePlaybackRequested();
+      if (autoplayPending) {
+        document.documentElement.setAttribute('data-share-playback', 'true');
+        setAutoplayState('pending');
+      }
+
+      function setAutoplayState(state) {
+        if (state) panel.setAttribute('data-autoplay', state);
+        else panel.removeAttribute('data-autoplay');
+        renderShareCue();
+      }
+
+      function shareCueStatus(state) {
+        return {
+          pending: viewerText('viewer.guided.state.ready'),
+          playing: viewerText('viewer.guided.state.playing'),
+          complete: viewerText('viewer.guided.state.settled'),
+          interrupted: viewerText('viewer.guided.state.paused'),
+          pinned: viewerText('viewer.guided.state.pinned'),
+          'reduced-motion': viewerText('viewer.guided.state.still')
+        }[state] || viewerText('viewer.guided.state.ready');
+      }
+
+      function shareCueBeatCopy(state, view, stops) {
+        var total = stops.length;
+        var activeStop = storyBeatIndex >= 0 ? stops[storyBeatIndex] : null;
+        if ((state === 'playing' || state === 'interrupted') && activeStop) {
+          return viewerText('viewer.guided.share.step', {
+            index: (storyBeatIndex + 1 < 10 ? '0' : '') + (storyBeatIndex + 1),
+            total: (total < 10 ? '0' : '') + total,
+            label: activeStop.textContent
+          });
+        }
+        if (state === 'pinned' && activeStop) {
+          return storyBeatCopy(storySteps[storyBeatIndex], total);
+        }
+        if (state === 'reduced-motion' && activeStop && hashBeatMatchesCurrent()) {
+          return viewerText('viewer.guided.share.staticMoment', {
+            step: viewerText('viewer.guided.share.step', {
+              index: (storyBeatIndex + 1 < 10 ? '0' : '') + (storyBeatIndex + 1),
+              total: (total < 10 ? '0' : '') + total,
+              label: activeStop.textContent
+            })
+          });
+        }
+        if (state === 'complete') return viewerText('viewer.guided.share.complete', {
+          count: total,
+          note: view.note || viewerText('viewer.guided.share.settled')
+        });
+        if (state === 'reduced-motion') return viewerText('viewer.guided.share.staticPath', { count: total });
+        if (state === 'pending') return viewerText('viewer.guided.share.ready', { count: total });
+        return view.note || viewerText('viewer.guided.chapter.selectedNodes', { count: view.focus.length });
+      }
+
+      function renderShareCue() {
+        if (!shareCue) return;
+        var view = activeIndex >= 0 ? views[activeIndex] : null;
+        var shareMode = document.documentElement.getAttribute('data-share-playback') === 'true';
+        var embedMode = document.documentElement.getAttribute('data-embed') === 'true';
+        var pinnedMode = !shareMode && embedMode && hashBeatMatchesCurrent();
+        if (pinnedMode) document.documentElement.setAttribute('data-share-moment', 'true');
+        else document.documentElement.removeAttribute('data-share-moment');
+        shareCue.hidden = !(embedMode && view && (shareMode || pinnedMode));
+        if (shareCue.hidden) return;
+        var state = pinnedMode ? 'pinned' : (panel.getAttribute('data-autoplay') || 'pending');
+        var stops = Array.prototype.slice.call(trail.querySelectorAll('[data-story-node]'));
+        var route = stops.map(function (stop, index) {
+          if (index === 0) return stop.textContent;
+          var kind = stop.getAttribute('data-story-link');
+          var separator = kind === 'forward' ? '\u2192' : (kind === 'reverse' ? '\u2190' : (kind === 'multiple' ? '\u21c4' : '\u00b7'));
+          return separator + ' ' + stop.textContent;
+        }).join(' ');
+        var beatCopy = shareCueBeatCopy(state, view, stops);
+        shareCue.setAttribute('data-state', state);
+        shareCue.setAttribute('aria-live', state === 'playing' ? 'off' : 'polite');
+        shareCueState.textContent = shareCueStatus(state);
+        shareCueCount.textContent = viewerText('viewer.guided.share.chapter', {
+          index: (activeIndex + 1 < 10 ? '0' : '') + (activeIndex + 1),
+          total: (views.length < 10 ? '0' : '') + views.length
+        });
+        shareCueLabel.textContent = view.label;
+        shareCueNote.textContent = beatCopy;
+        shareCueRoute.textContent = route;
+        shareCue.setAttribute('aria-label', viewerText('viewer.guided.share.aria', {
+          state: shareCueStatus(state),
+          index: activeIndex + 1,
+          total: views.length,
+          label: view.label,
+          beat: beatCopy,
+          route: route
+        }));
+      }
+
+      function setShareCueProgress(fraction) {
+        if (!shareCueProgress) return;
+        shareCueProgress.style.animation = 'none';
+        shareCueProgress.style.setProperty('--guided-progress-start', String(Math.max(0, Math.min(1, fraction))));
+        shareCueProgress.style.transform = 'scaleX(' + Math.max(0, Math.min(1, fraction)) + ')';
+      }
+
+      function startShareCueProgress(fraction, duration) {
+        if (!shareCueProgress) return;
+        setShareCueProgress(fraction || 0);
+        void shareCueProgress.offsetWidth;
+        shareCueProgress.style.animation = 'archify-guided-progress ' + Math.max(1, duration || VIEW_INTERVAL_MS) + 'ms linear forwards';
+      }
+
+      function storyNodeLabel(node, fallback) {
+        if (!node) return fallback;
+        return node.getAttribute('data-node-label') ||
+          (node.getAttribute('aria-label') || fallback).replace(/^Focus\s+/, '');
+      }
+
+      function storyEdgeKey(edge) {
+        return edge.getAttribute('data-edge-key') || (
+          edge.getAttribute('data-edge-from') + '\u0000' +
+          edge.getAttribute('data-edge-to') + '\u0000' +
+          (edge.getAttribute('data-edge-label') || '')
+        );
+      }
+
+      function uniqueStoryEdges(edgeList) {
+        var positions = {};
+        var unique = [];
+        edgeList.forEach(function (edge) {
+          var key = storyEdgeKey(edge);
+          if (!Object.prototype.hasOwnProperty.call(positions, key)) {
+            positions[key] = unique.length;
+            unique.push(edge);
+            return;
+          }
+          var index = positions[key];
+          if (!storyGeometry(unique[index]).length && storyGeometry(edge).length) unique[index] = edge;
+        });
+        return unique;
+      }
+
+      function storyStep(view, index, edgeList, byId) {
+        var id = view.focus[index];
+        var node = byId[id];
+        var previousId = index > 0 ? view.focus[index - 1] : '';
+        var forward = [];
+        var reverse = [];
+        if (previousId) {
+          edgeList.forEach(function (edge) {
+            var from = edge.getAttribute('data-edge-from');
+            var to = edge.getAttribute('data-edge-to');
+            if (from === previousId && to === id) forward.push(edge);
+            else if (from === id && to === previousId) reverse.push(edge);
+          });
+        }
+        forward = uniqueStoryEdges(forward);
+        reverse = uniqueStoryEdges(reverse);
+        var edges = forward.concat(reverse).sort(function (left, right) {
+          return edgeList.indexOf(left) - edgeList.indexOf(right);
+        });
+        var relation = index === 0 ? 'start' : (!edges.length ? 'group' : (
+          edges.length === 1 && forward.length === 1 ? 'forward' :
+          (edges.length === 1 && reverse.length === 1 ? 'reverse' : 'multiple')
+        ));
+        return {
+          index: index,
+          nodeId: id,
+          nodeLabel: storyNodeLabel(byId[id], id),
+          previousId: previousId,
+          previousLabel: previousId ? storyNodeLabel(byId[previousId], previousId) : '',
+          relation: relation,
+          edges: edges,
+          edgeKeys: edges.map(storyEdgeKey),
+          edgeLabels: edges.map(function (edge) { return edge.getAttribute('data-edge-label') || ''; }).filter(function (value, edgeIndex, values) {
+            return value && values.indexOf(value) === edgeIndex;
+          }),
+          responsibility: node ? (node.getAttribute('data-node-sublabel') || '') : '',
+          context: node ? (node.getAttribute('data-node-context') || '') : ''
+        };
+      }
+
+      function storyBeatCopy(step, total) {
+        if (!step) return '';
+        var position = (step.index + 1 < 10 ? '0' : '') + (step.index + 1);
+        var countValue = (total < 10 ? '0' : '') + total;
+        if (step.relation === 'start') return viewerText('viewer.guided.beat.start', { index: position, total: countValue, label: step.nodeLabel });
+        if (step.relation === 'forward') return viewerText('viewer.guided.beat.forward', { index: position, total: countValue, from: step.previousLabel, to: step.nodeLabel });
+        if (step.relation === 'reverse') return viewerText('viewer.guided.beat.reverse', { index: position, total: countValue, from: step.nodeLabel, to: step.previousLabel });
+        if (step.relation === 'multiple') return viewerText('viewer.guided.beat.multiple', { index: position, total: countValue, from: step.previousLabel, to: step.nodeLabel, count: step.edges.length });
+        return viewerText('viewer.guided.beat.group', { index: position, total: countValue, from: step.previousLabel, to: step.nodeLabel });
+      }
+
+      function storyBeatAria(step, total) {
+        var prefix = viewerText('viewer.guided.beat.aria.prefix', { index: step.index + 1, total: total, label: step.nodeLabel });
+        if (step.relation === 'start') return prefix + viewerText('viewer.guided.beat.aria.start');
+        if (step.relation === 'forward') return prefix + viewerText('viewer.guided.beat.aria.forward', { from: step.previousLabel });
+        if (step.relation === 'reverse') return prefix + viewerText('viewer.guided.beat.aria.reverse', { from: step.previousLabel, to: step.nodeLabel });
+        if (step.relation === 'multiple') return prefix + viewerText('viewer.guided.beat.aria.multiple', { from: step.previousLabel, count: step.edges.length });
+        return prefix + viewerText('viewer.guided.beat.aria.group', { from: step.previousLabel });
+      }
+
+      function storyCaptionRouteCopy(step) {
+        if (step.relation === 'start') return step.nodeLabel + ' · ' + viewerText('viewer.guided.caption.start');
+        if (step.relation === 'reverse') return step.previousLabel + ' ← ' + step.nodeLabel;
+        if (step.relation === 'multiple') return step.previousLabel + ' ⇄ ' + step.nodeLabel;
+        if (step.relation === 'group') return step.previousLabel + ' · ' + step.nodeLabel;
+        return step.previousLabel + ' → ' + step.nodeLabel;
+      }
+
+      function storyCaptionDetailCopy(step) {
+        var facts = [];
+        if (step.relation === 'group') facts.push(viewerText('viewer.guided.caption.grouped'));
+        else if (step.edgeLabels.length) facts.push(step.edgeLabels.slice(0, 3).join(' + ') + (step.edgeLabels.length > 3 ? viewerText('viewer.guided.caption.more', { count: step.edgeLabels.length - 3 }) : ''));
+        else if (step.relation === 'reverse') facts.push(viewerText('viewer.guided.caption.reverse'));
+        else if (step.relation === 'multiple') facts.push(viewerText('viewer.guided.caption.relationships', { count: step.edges.length }));
+        else if (step.relation !== 'start') facts.push(viewerText('viewer.guided.caption.relationship'));
+        if (step.relation === 'reverse') facts.push(viewerText('viewer.guided.caption.direction', { from: step.nodeLabel, to: step.previousLabel }));
+        if (step.responsibility) facts.push(step.responsibility);
+        if (step.context) facts.push(step.context);
+        if (!facts.length) facts.push(viewerText('viewer.guided.caption.starting'));
+        return facts.join(' · ');
+      }
+
+      function renderStoryCaption(step, total, nextStep) {
+        if (!storyCaption) return;
+        if (!step) {
+          storyCaption.hidden = true;
+          storyCaption.removeAttribute('data-story-caption');
+          storyCaptionNext.hidden = true;
+          storyCaptionNextLabel.textContent = '';
+          return;
+        }
+        storyCaption.hidden = false;
+        storyCaption.setAttribute('data-story-caption', step.relation);
+        storyCaption.setAttribute('aria-live', playing ? 'off' : 'polite');
+        storyCaptionIndex.textContent = (step.index + 1 < 10 ? '0' : '') + (step.index + 1) + ' / ' + (total < 10 ? '0' : '') + total;
+        storyCaptionRoute.textContent = storyCaptionRouteCopy(step);
+        storyCaptionDetail.textContent = storyCaptionDetailCopy(step);
+        storyCaptionNext.hidden = !nextStep;
+        storyCaptionNextLabel.textContent = nextStep
+          ? ((nextStep.index + 1 < 10 ? '0' : '') + (nextStep.index + 1) + ' · ' + nextStep.nodeLabel)
+          : '';
+        storyCaption.style.animation = 'none';
+        void storyCaption.offsetWidth;
+        storyCaption.style.removeProperty('animation');
+      }
+
+      function storyMomentLink() {
+        var view = activeIndex >= 0 ? views[activeIndex] : null;
+        var step = storyBeatIndex >= 0 ? storySteps[storyBeatIndex] : null;
+        if (!view || !step) return '';
+        var url = new URL(location.href);
+        url.searchParams.delete('play');
+        url.hash = 'view=' + encodeURIComponent(view.id) + '&beat=' + encodeURIComponent(step.nodeId);
+        return url.href;
+      }
+
+      function fallbackCopyStoryMoment(value) {
+        var field = document.createElement('textarea');
+        field.value = value;
+        field.setAttribute('readonly', '');
+        field.style.position = 'fixed';
+        field.style.opacity = '0';
+        document.body.appendChild(field);
+        field.select();
+        var copied = false;
+        try { copied = document.execCommand('copy'); } catch (_) {}
+        field.remove();
+        return copied;
+      }
+
+      function resetBeatLinkFeedback() {
+        if (beatLinkFeedbackTimer) clearTimeout(beatLinkFeedbackTimer);
+        beatLinkFeedbackTimer = null;
+        beatLink.removeAttribute('data-copy-state');
+        beatLinkLabel.textContent = viewerText('viewer.guided.copyMoment');
+      }
+
+      function syncBeatLink() {
+        var step = storyBeatIndex >= 0 ? storySteps[storyBeatIndex] : null;
+        var available = !!(activeIndex >= 0 && step && !currentHandoff);
+        beatLink.disabled = !available;
+        if (!beatLink.hasAttribute('data-copy-state')) beatLinkLabel.textContent = viewerText('viewer.guided.copyMoment');
+        var description = available
+          ? viewerText('viewer.guided.beatLink', { index: step.index + 1, total: storySteps.length, label: step.nodeLabel })
+          : viewerText('viewer.guided.selectBeatLink');
+        beatLink.setAttribute('aria-label', description);
+        beatLink.title = description;
+      }
+
+      function setBeatLinkFeedback(copied) {
+        resetBeatLinkFeedback();
+        beatLink.setAttribute('data-copy-state', copied ? 'copied' : 'failed');
+        beatLinkLabel.textContent = viewerText(copied ? 'viewer.guided.copied' : 'viewer.guided.copyFailed');
+        beatLink.setAttribute('aria-label', viewerText(copied ? 'viewer.guided.momentCopied' : 'viewer.guided.momentCopyFailed'));
+        beatLinkFeedbackTimer = setTimeout(function () {
+          resetBeatLinkFeedback();
+          syncBeatLink();
+        }, 1600);
+      }
+
+      function copyStoryMomentLink() {
+        if (playing) pausePlayback();
+        var value = storyMomentLink();
+        if (!value) return Promise.resolve(false);
+        var copy = navigator.clipboard && typeof navigator.clipboard.writeText === 'function'
+          ? navigator.clipboard.writeText(value).then(function () { return true; }).catch(function () { return fallbackCopyStoryMoment(value); })
+          : Promise.resolve(fallbackCopyStoryMoment(value));
+        return copy.then(function (copied) {
+          setBeatLinkFeedback(copied);
+          return copied;
+        });
+      }
+
+      function hashBeatMatchesCurrent() {
+        var view = activeIndex >= 0 ? views[activeIndex] : null;
+        var step = storyBeatIndex >= 0 ? storySteps[storyBeatIndex] : null;
+        if (!view || !step) return false;
+        try {
+          var params = new URLSearchParams(location.hash.replace(/^#/, ''));
+          return params.get('view') === view.id && params.get('beat') === step.nodeId;
+        } catch (_) { return false; }
+      }
+
+      function storyMotionAllowed() {
+        if (document.hidden || reducedMotion()) return false;
+        if (document.documentElement.getAttribute('data-motion') !== 'live') return false;
+        if (document.documentElement.getAttribute('data-embed') === 'true' &&
+            document.documentElement.getAttribute('data-share-playback') !== 'true') return false;
+        if (window.matchMedia && window.matchMedia('print').matches) return false;
+        return !(Archify.motionGovernor && Archify.motionGovernor.isPaused());
+      }
+
+      function storyAutomaticPlaybackAllowed() {
+        if (document.hidden || reducedMotion()) return false;
+        if (window.matchMedia && window.matchMedia('print').matches) return false;
+        if (Archify.motionGovernor && Archify.motionGovernor.capable) return !Archify.motionGovernor.isPaused();
+        return true;
+      }
+
+      function clearStoryPulse(options) {
+        options = options || {};
+        storyPulseGeneration += 1;
+        Array.prototype.forEach.call(svg.querySelectorAll('.story-trail-flow[data-story-pulse]'), function (flow) {
+          flow.removeAttribute('data-story-pulse');
+        });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-carrier-overlay]'), function (overlay) {
+          overlay.remove();
+        });
+        if (storyPulseOwnerToken && options.release !== false && Archify.motionGovernor) {
+          var token = storyPulseOwnerToken;
+          storyPulseOwnerToken = 0;
+          Archify.motionGovernor.release(token);
+        } else if (options.release === false) storyPulseOwnerToken = 0;
+      }
+
+      function pulseStoryStep(step) {
+        clearStoryPulse();
+        if (!step || (step.relation !== 'forward' && step.relation !== 'reverse') || step.edges.length !== 1 || !storyMotionAllowed()) return false;
+        var flows = Array.prototype.slice.call(svg.querySelectorAll('.story-trail-flow[data-story-beat-step="' + step.index + '"]'));
+        if (!flows.length) return false;
+        var pulseGeneration = storyPulseGeneration;
+        if (Archify.motionGovernor && Archify.motionGovernor.capable) {
+          storyPulseOwnerToken = Archify.motionGovernor.claim('story', function () {
+            clearStoryPulse({ release: false });
+          });
+        }
+        flows.forEach(function (flow) { flow.setAttribute('data-story-pulse', 'true'); });
+        if (Archify.flowTokens && typeof Archify.flowTokens.create === 'function') {
+          var edge = step.edges[0];
+          var shapes = storyGeometry(edge);
+          var carrier = shapes.length ? Archify.flowTokens.create(edge, shapes[0], {
+            className: 'story-flow-token',
+            duration: '0.78s'
+          }) : null;
+          if (carrier) {
+            var carrierOverlay = document.createElementNS('http://www.w3.org/2000/svg', 'g');
+            var carrierWrapper = document.createElementNS('http://www.w3.org/2000/svg', 'g');
+            carrierOverlay.setAttribute('class', 'story-carrier-overlay');
+            carrierOverlay.setAttribute('data-story-carrier-overlay', '');
+            carrierOverlay.setAttribute('aria-hidden', 'true');
+            if (edge.hasAttribute('transform')) carrierWrapper.setAttribute('transform', edge.getAttribute('transform'));
+            carrier.setAttribute('data-story-carrier-token', '');
+            carrier.setAttribute('data-story-beat-step', String(step.index));
+            carrierWrapper.appendChild(carrier);
+            carrierOverlay.appendChild(carrierWrapper);
+            var firstNode = svg.querySelector('[data-node-id]');
+            while (firstNode && firstNode.parentNode !== svg) firstNode = firstNode.parentNode;
+            if (firstNode) svg.insertBefore(carrierOverlay, firstNode);
+            else svg.appendChild(carrierOverlay);
+          }
+        }
+        void flows[0].getBoundingClientRect();
+        flows[0].addEventListener('animationend', function () {
+          if (pulseGeneration === storyPulseGeneration) clearStoryPulse();
+        }, { once: true });
+        return true;
+      }
+
+      function stopStoryBeatTimer(options) {
+        options = options || {};
+        storyPlaybackGeneration += 1;
+        if (storyBeatTimer && options.preserveElapsed === true && storyBeatStartedAt) {
+          storyBeatElapsedMs = Math.min(storyBeatDwellMs, storyBeatElapsedMs + Math.max(0, Date.now() - storyBeatStartedAt));
+        }
+        if (storyBeatTimer) clearTimeout(storyBeatTimer);
+        storyBeatTimer = null;
+        storyBeatStartedAt = 0;
+      }
+
+      function centerStoryStop(stop) {
+        if (!stop || !trail) return false;
+        var target = Math.max(0, stop.offsetLeft - (trail.clientWidth - stop.offsetWidth) / 2);
+        trail.scrollLeft = target;
+        return true;
+      }
+
+      function storyBeatDwell(total) {
+        return Math.max(STORY_FOLLOW_MIN_DWELL_MS, VIEW_INTERVAL_MS / Math.max(1, total));
+      }
+
+      function clearStoryFollow() {
+        storyFollowGeneration += 1;
+        svg.removeAttribute('data-story-follow');
+        panel.removeAttribute('data-story-follow');
+        panel.removeAttribute('data-story-follow-node');
+      }
+
+      function storyFrameIds(step) {
+        if (!step) return [];
+        var ids = [];
+        if (step.index > 0 && storySteps[step.index - 1]) ids.push(storySteps[step.index - 1].nodeId);
+        ids.push(step.nodeId);
+        if (step.index + 1 < storySteps.length) ids.push(storySteps[step.index + 1].nodeId);
+        return ids;
+      }
+
+      function followStoryStep(step, options) {
+        options = options || {};
+        if (!step || document.hidden) return false;
+        if (!Archify.view || typeof Archify.view.reveal !== 'function') {
+          var deferredIndex = step.index;
+          var deferredGeneration = ++storyFollowGeneration;
+          requestAnimationFrame(function () {
+            if (deferredGeneration !== storyFollowGeneration || storyBeatIndex !== deferredIndex) return;
+            if (Archify.view && typeof Archify.view.reveal === 'function') followStoryStep(step, options);
+          });
+          return true;
+        }
+        if (window.matchMedia && window.matchMedia('print').matches) return false;
+        var embed = document.documentElement.getAttribute('data-embed') === 'true';
+        var explicitEmbedPlayback = document.documentElement.getAttribute('data-share-playback') === 'true';
+        if (embed && !explicitEmbedPlayback && options.linked !== true) return false;
+        var ids = storyFrameIds(step);
+        var generation = ++storyFollowGeneration;
+        svg.setAttribute('data-story-follow', step.nodeId);
+        panel.setAttribute('data-story-follow', 'moving');
+        panel.setAttribute('data-story-follow-node', step.nodeId);
+        var receipt = Archify.view.reveal(ids, {
+          reason: options.manual === true ? 'story-beat' : 'story-follow',
+          padding: 64,
+          maxScale: 1.65,
+          duration: STORY_FOLLOW_DURATION_MS,
+          instant: options.instant === true || reducedMotion() || document.documentElement.getAttribute('data-motion') !== 'live'
+        });
+        if (receipt && receipt.finished && typeof receipt.finished.then === 'function') {
+          receipt.finished.then(function (result) {
+            if (generation !== storyFollowGeneration || storyBeatIndex !== step.index) return;
+            svg.removeAttribute('data-story-follow');
+            panel.setAttribute('data-story-follow', result && result.state === 'complete' ? 'settled' : 'interrupted');
+          });
+        } else if (generation === storyFollowGeneration) {
+          panel.setAttribute('data-story-follow', 'settled');
+        }
+        return receipt;
+      }
+
+      function setStoryBeat(index, options) {
+        options = options || {};
+        var stops = Array.prototype.slice.call(trail.querySelectorAll('[data-story-node]'));
+        if (!stops.length) return false;
+        resetBeatLinkFeedback();
+        storyBeatIndex = Math.max(0, Math.min(stops.length - 1, index));
+        var nextStep = storyBeatIndex + 1 < storySteps.length ? storySteps[storyBeatIndex + 1] : null;
+        svg.setAttribute('data-story-beat', (storyBeatIndex + 1) + '/' + stops.length);
+        panel.setAttribute('data-story-beat', (storyBeatIndex + 1) + '/' + stops.length);
+        if (nextStep) {
+          svg.setAttribute('data-story-next', nextStep.nodeId);
+          panel.setAttribute('data-story-next', nextStep.nodeId);
+        } else {
+          svg.removeAttribute('data-story-next');
+          panel.removeAttribute('data-story-next');
+        }
+        function storyBeatState(step) {
+          if (step < storyBeatIndex) return 'past';
+          if (step === storyBeatIndex) return 'active';
+          if (step === storyBeatIndex + 1) return 'next';
+          return 'pending';
+        }
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-step]'), function (node) {
+          var step = Number(node.getAttribute('data-story-step'));
+          node.setAttribute('data-story-beat-state', storyBeatState(step));
+        });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-beat-step]'), function (edge) {
+          var step = Number(edge.getAttribute('data-story-beat-step'));
+          edge.setAttribute('data-story-beat-state', storyBeatState(step));
+        });
+        stops.forEach(function (stop, step) {
+          stop.setAttribute('data-story-beat-state', storyBeatState(step));
+          if (step === storyBeatIndex) stop.setAttribute('aria-current', 'step');
+          else stop.removeAttribute('aria-current');
+        });
+        note.setAttribute('aria-live', 'off');
+        note.textContent = storyBeatCopy(storySteps[storyBeatIndex], stops.length);
+        renderStoryCaption(storySteps[storyBeatIndex], stops.length, nextStep);
+        if (options.center === true) centerStoryStop(stops[storyBeatIndex]);
+        if (options.pulse === true) pulseStoryStep(storySteps[storyBeatIndex]);
+        else clearStoryPulse();
+        if (options.follow === true) followStoryStep(storySteps[storyBeatIndex], {
+          manual: options.manual === true,
+          linked: options.linked === true,
+          instant: options.followInstant === true
+        });
+        renderShareCue();
+        syncBeatLink();
+        return true;
+      }
+
+      function settleStoryBeats() {
+        stopStoryBeatTimer();
+        clearStoryPulse();
+        clearStoryFollow();
+        resetBeatLinkFeedback();
+        storyBeatIndex = -1;
+        storyBeatElapsedMs = 0;
+        storyBeatDwellMs = 0;
+        svg.removeAttribute('data-story-beat');
+        svg.removeAttribute('data-story-next');
+        panel.removeAttribute('data-story-beat');
+        panel.removeAttribute('data-story-next');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-beat-state]'), function (el) {
+          el.removeAttribute('data-story-beat-state');
+        });
+        Array.prototype.forEach.call(trail.querySelectorAll('[data-story-beat-state]'), function (stop) {
+          stop.removeAttribute('data-story-beat-state');
+          stop.removeAttribute('aria-current');
+        });
+        note.setAttribute('aria-live', 'polite');
+        if (activeIndex >= 0) note.textContent = views[activeIndex].note || viewerText('viewer.guided.chapter.selectedNodes', { count: views[activeIndex].focus.length });
+        renderStoryCaption(null, 0);
+        renderShareCue();
+        syncBeatLink();
+      }
+
+      function clearStoryTrail() {
+        stopStoryBeatTimer();
+        clearStoryPulse();
+        clearStoryFollow();
+        resetBeatLinkFeedback();
+        storyBeatIndex = -1;
+        storyBeatElapsedMs = 0;
+        storyBeatDwellMs = 0;
+        storySteps = [];
+        svg.removeAttribute('data-story-active');
+        svg.removeAttribute('data-story-playing');
+        svg.removeAttribute('data-story-beat');
+        svg.removeAttribute('data-story-next');
+        panel.removeAttribute('data-story-beat');
+        panel.removeAttribute('data-story-next');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-overlay]'), function (overlay) {
+          overlay.remove();
+        });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-step], [data-story-beat-state]'), function (node) {
+          node.removeAttribute('data-story-step');
+          node.removeAttribute('data-story-beat-state');
+          node.style.removeProperty('--story-step');
+        });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-edge-from][data-story-beat-step]'), function (edge) {
+          edge.removeAttribute('data-story-beat-step');
+          edge.removeAttribute('data-story-beat-state');
+        });
+        trail.textContent = '';
+        trail.hidden = true;
+        trail.removeAttribute('aria-label');
+        renderStoryCaption(null, 0);
+        syncBeatLink();
+      }
+
+      function storyGeometry(edge) {
+        if (/^(path|line|polyline)$/i.test(edge.tagName)) return [edge];
+        return Array.prototype.slice.call(edge.querySelectorAll('path, line, polyline'));
+      }
+
+      function renderStoryTrail(view) {
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        clearStoryTrail();
+        if (!view) return;
+
+        var nodeList = Array.prototype.slice.call(svg.querySelectorAll('[data-node-id]'));
+        var edgeList = Array.prototype.slice.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'));
+        var byId = {};
+        nodeList.forEach(function (node) { byId[node.getAttribute('data-node-id')] = node; });
+        storySteps = view.focus.map(function (_, index) { return storyStep(view, index, edgeList, byId); });
+        var labels = [];
+        storySteps.forEach(function (step, index) {
+          var id = step.nodeId;
+          var node = byId[id];
+          if (!node) return;
+          node.setAttribute('data-story-step', String(index));
+          node.style.setProperty('--story-step', String(index));
+          var nodeLabel = step.nodeLabel;
+          labels.push(nodeLabel);
+          var stop = document.createElement('button');
+          stop.type = 'button';
+          stop.className = 'guided-view-stop';
+          stop.setAttribute('data-story-node', id);
+          stop.setAttribute('data-story-index', String(index));
+          stop.setAttribute('data-story-relation', step.relation);
+          stop.setAttribute('data-story-number', (index + 1 < 10 ? '0' : '') + (index + 1));
+          if (index > 0) stop.setAttribute('data-story-link', step.relation);
+          stop.style.setProperty('--story-step', String(index));
+          stop.setAttribute('aria-label', storyBeatAria(step, storySteps.length));
+          stop.title = storyBeatCopy(step, storySteps.length);
+          stop.textContent = nodeLabel;
+          trail.appendChild(stop);
+        });
+        trail.hidden = labels.length === 0;
+        trail.setAttribute('aria-label', viewerText('viewer.guided.storyTrail', { label: view.label, count: labels.length }));
+        trail.scrollLeft = 0;
+        svg.setAttribute('data-story-active', view.id);
+
+        var overlay = document.createElementNS('http://www.w3.org/2000/svg', 'g');
+        overlay.setAttribute('class', 'story-trail-overlay');
+        overlay.setAttribute('data-story-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        var copied = 0;
+        storySteps.forEach(function (step) {
+          step.edges.forEach(function (edge) {
+            var edgeBeat = step.index;
+            edge.setAttribute('data-story-beat-step', String(edgeBeat));
+            var wrapper = document.createElementNS('http://www.w3.org/2000/svg', 'g');
+            if (edge.hasAttribute('transform')) wrapper.setAttribute('transform', edge.getAttribute('transform'));
+            storyGeometry(edge).forEach(function (shape) {
+              var clone = shape.cloneNode(false);
+              clone.removeAttribute('id');
+              clone.removeAttribute('marker-start');
+              clone.removeAttribute('marker-mid');
+              clone.removeAttribute('marker-end');
+              clone.removeAttribute('aria-label');
+              clone.removeAttribute('role');
+              clone.removeAttribute('data-animate');
+              clone.removeAttribute('data-edge-from');
+              clone.removeAttribute('data-edge-to');
+              clone.removeAttribute('data-edge-key');
+              clone.removeAttribute('data-edge-id');
+              clone.removeAttribute('data-edge-label');
+              clone.setAttribute('class', 'story-trail-flow');
+              clone.setAttribute('data-story-beat-step', String(edgeBeat));
+              clone.style.setProperty('--story-step', String(edgeBeat));
+              wrapper.appendChild(clone);
+              copied += 1;
+            });
+            if (wrapper.childNodes.length) overlay.appendChild(wrapper);
+          });
+        });
+        if (copied) {
+          var firstEdge = edgeList[0];
+          if (firstEdge && firstEdge.parentNode) firstEdge.parentNode.insertBefore(overlay, firstEdge);
+          else svg.insertBefore(overlay, svg.firstChild);
+        }
+      }
+
+      function syncStoryPlayback() {
+        var shouldPlay = playing && activeIndex >= 0;
+        if (shouldPlay && svg.getAttribute('data-story-playing') !== 'true') svg.setAttribute('data-story-playing', 'true');
+        else if (!shouldPlay && svg.hasAttribute('data-story-playing')) svg.removeAttribute('data-story-playing');
+      }
+
+      function resetProgress(fraction) {
+        fraction = Math.max(0, Math.min(1, Number(fraction) || 0));
+        progressBar.style.animation = 'none';
+        progressBar.style.setProperty('--guided-progress-start', String(fraction));
+        progressBar.style.transform = 'scaleX(' + fraction + ')';
+      }
+
+      function startProgress(fraction, duration) {
+        resetProgress(fraction);
+        void progressBar.offsetWidth;
+        progressBar.style.animation = 'archify-guided-progress ' + Math.max(1, duration || VIEW_INTERVAL_MS) + 'ms linear forwards';
+      }
+
+      function currentStoryProgress() {
+        var total = storySteps.length;
+        if (!total || storyBeatIndex < 0) return 0;
+        var elapsed = storyBeatElapsedMs;
+        if (playing && storyBeatTimer && storyBeatStartedAt) elapsed += Math.max(0, Date.now() - storyBeatStartedAt);
+        var dwell = storyBeatDwellMs || storyBeatDwell(total);
+        return Math.max(0, Math.min(1, (storyBeatIndex + Math.min(1, elapsed / dwell)) / total));
+      }
+
+      function renderPlayback() {
+        var automaticPlaybackAllowed = storyAutomaticPlaybackAllowed();
+        panel.setAttribute('data-playing', playing ? 'true' : 'false');
+        syncStoryPlayback();
+        play.disabled = !playing && !automaticPlaybackAllowed;
+        play.setAttribute('aria-pressed', playing ? 'true' : 'false');
+        play.setAttribute('aria-label', viewerText(playing
+          ? 'viewer.guided.pause'
+          : !automaticPlaybackAllowed
+            ? 'viewer.guided.motionUnavailable'
+            : storyPlaybackComplete
+              ? 'viewer.guided.replay'
+              : 'viewer.guided.play'));
+        play.title = viewerText(playing
+          ? 'viewer.guided.pause.title'
+          : !automaticPlaybackAllowed
+            ? 'viewer.guided.enableMotion'
+            : storyPlaybackComplete
+              ? 'viewer.guided.replay.title'
+              : 'viewer.guided.play.title');
+        playIcon.textContent = playing ? '\u2016' : '\u25b6';
+        playLabel.textContent = viewerText(playing
+          ? 'viewer.guided.pauseStory'
+          : storyPlaybackComplete
+            ? 'viewer.guided.replayStory'
+            : 'viewer.guided.playStory');
+        if (storyCaption && !storyCaption.hidden) storyCaption.setAttribute('aria-live', playing ? 'off' : 'polite');
+      }
+
+      function render() {
+        var view = views[activeIndex];
+        count.textContent = activeIndex < 0 ? '0 / ' + views.length : (activeIndex + 1) + ' / ' + views.length;
+        label.textContent = view ? view.label : viewerText('viewer.guided.explore');
+        note.setAttribute('aria-live', storyBeatIndex >= 0 ? 'off' : 'polite');
+        note.textContent = storyBeatIndex >= 0
+          ? storyBeatCopy(storySteps[storyBeatIndex], storySteps.length)
+          : (view
+            ? (view.note || viewerText('viewer.guided.chapter.selectedNodes', { count: view.focus.length }))
+            : viewerText('viewer.guided.intro'));
+        prev.disabled = activeIndex < 0;
+        next.disabled = activeIndex >= views.length - 1;
+        all.disabled = activeIndex < 0;
+        panel.setAttribute('data-active-view', view ? view.id : 'all');
+        syncChapterIndex();
+        renderShareCue();
+        renderPlayback();
+        syncBeatLink();
+      }
+
+      function pausePlayback(options) {
+        options = options || {};
+        var progress = options.complete === true ? 1 : currentStoryProgress();
+        if (panel.getAttribute('data-autoplay') === 'playing') {
+          setShareCueProgress(progress);
+          setAutoplayState(options.complete === true ? 'complete' : 'interrupted');
+        }
+        stopStoryBeatTimer({ preserveElapsed: options.complete !== true });
+        clearStoryPulse();
+        clearStoryFollow();
+        playing = false;
+        storyPlaybackComplete = options.complete === true;
+        resetProgress(progress);
+        renderPlayback();
+        renderShareCue();
+      }
+
+      function finishStoryChapter() {
+        if (!playing) return false;
+        if (storyPlaybackScope === 'chapter') {
+          pausePlayback({ complete: true });
+          return true;
+        }
+        if (activeIndex < views.length - 1) {
+          var destinationIndex = activeIndex + 1;
+          activate(destinationIndex, { playback: true });
+          afterHandoff(function () {
+            if (!playing || activeIndex !== destinationIndex) return;
+            storyBeatElapsedMs = 0;
+            setStoryBeat(0, { pulse: true, follow: true });
+            scheduleStoryPlayback();
+          });
+          return true;
+        }
+        pausePlayback({ complete: true });
+        return true;
+      }
+
+      function scheduleStoryPlayback() {
+        var total = storySteps.length;
+        if (!playing || !total || reducedMotion()) {
+          if (playing) pausePlayback();
+          return false;
+        }
+        storyBeatDwellMs = storyBeatDwell(total);
+        if (storyBeatIndex < 0) {
+          storyBeatElapsedMs = 0;
+          setStoryBeat(0, { pulse: true, follow: true });
+        }
+        storyBeatElapsedMs = Math.max(0, Math.min(storyBeatDwellMs, storyBeatElapsedMs));
+        var remainingDwell = Math.max(1, storyBeatDwellMs - storyBeatElapsedMs);
+        var progress = (storyBeatIndex + storyBeatElapsedMs / storyBeatDwellMs) / total;
+        var remainingChapter = remainingDwell + Math.max(0, total - storyBeatIndex - 1) * storyBeatDwellMs;
+        startProgress(progress, remainingChapter);
+        if (panel.getAttribute('data-autoplay') === 'playing') startShareCueProgress(progress, remainingChapter);
+        var generation = ++storyPlaybackGeneration;
+        storyBeatStartedAt = Date.now();
+        storyBeatTimer = setTimeout(function () {
+          if (!playing || generation !== storyPlaybackGeneration) return;
+          storyBeatTimer = null;
+          storyBeatStartedAt = 0;
+          storyBeatElapsedMs = 0;
+          if (storyBeatIndex < total - 1) {
+            setStoryBeat(storyBeatIndex + 1, { pulse: true, follow: true });
+            scheduleStoryPlayback();
+          } else finishStoryChapter();
+        }, remainingDwell);
+        return true;
+      }
+
+      function startPlayback() {
+        if (!storyAutomaticPlaybackAllowed()) {
+          renderPlayback();
+          return false;
+        }
+        autoplayPending = false;
+        setAutoplayState(null);
+        setShareCueProgress(0);
+        document.documentElement.removeAttribute('data-share-playback');
+        storyPlaybackScope = 'story';
+        if (storyPlaybackComplete) showAll({ updateUrl: false });
+        storyPlaybackComplete = false;
+        if (activeIndex < 0) activate(0, { playback: true });
+        playing = true;
+        renderPlayback();
+        afterHandoff(function () {
+          if (!playing) return;
+          if (storyBeatIndex >= 0) followStoryStep(storySteps[storyBeatIndex]);
+          scheduleStoryPlayback();
+        });
+        return true;
+      }
+
+      function startCurrentViewPlayback() {
+        if (document.hidden) return false;
+        autoplayPending = false;
+        document.documentElement.setAttribute('data-share-playback', 'true');
+        storyPlaybackScope = 'chapter';
+        storyPlaybackComplete = false;
+        if (activeIndex < 0) activate(0, { playback: true, updateUrl: false });
+        if (!storyAutomaticPlaybackAllowed()) {
+          var preserveMoment = hashBeatMatchesCurrent();
+          setShareCueProgress(preserveMoment && storySteps.length ? (storyBeatIndex + 1) / storySteps.length : 1);
+          setAutoplayState('reduced-motion');
+          playing = false;
+          if (preserveMoment) {
+            clearStoryPulse();
+            renderShareCue();
+          } else settleStoryBeats();
+          renderPlayback();
+          return false;
+        }
+        playing = true;
+        setAutoplayState('playing');
+        renderPlayback();
+        afterHandoff(function () {
+          if (!playing) return;
+          if (storyBeatIndex >= 0) followStoryStep(storySteps[storyBeatIndex]);
+          scheduleStoryPlayback();
+        });
+        return true;
+      }
+
+      function maybeStartSharePlayback() {
+        if (!autoplayPending || document.hidden) return false;
+        return startCurrentViewPlayback();
+      }
+
+      function togglePlayback() {
+        return playing ? (pausePlayback(), false) : startPlayback();
+      }
+
+      function syncStoryControlsDisabled() {
+        Array.prototype.forEach.call(trail.querySelectorAll('[data-story-node]'), function (stop) {
+          stop.disabled = !!currentHandoff;
+        });
+        syncBeatLink();
+      }
+
+      function selectStoryBeat(index) {
+        if (currentHandoff || activeIndex < 0 || index < 0 || index >= storySteps.length) return false;
+        momentRestoreGeneration += 1;
+        clearChapterPreview({ clearIntents: true });
+        if (playing) pausePlayback();
+        else {
+          stopStoryBeatTimer();
+          clearStoryPulse();
+        }
+        storyPlaybackComplete = false;
+        storyPlaybackScope = 'story';
+        storyBeatElapsedMs = 0;
+        storyBeatDwellMs = storyBeatDwell(storySteps.length);
+        var view = views[activeIndex];
+        Archify.focus.setMany(view.focus, {
+          toggle: false,
+          updateUrl: false,
+          mode: 'selection',
+          label: view.label,
+          hideChip: true
+        });
+        setStoryBeat(index, { manual: true, center: true, pulse: true, follow: true });
+        resetProgress(index / storySteps.length);
+        renderPlayback();
+        return true;
+      }
+
+      function selectStoryBeatById(id, options) {
+        options = options || {};
+        var index = storySteps.findIndex(function (step) { return step.nodeId === id; });
+        if (index < 0) return false;
+        if (playing) pausePlayback();
+        else {
+          stopStoryBeatTimer();
+          clearStoryPulse();
+        }
+        storyPlaybackComplete = false;
+        storyPlaybackScope = 'story';
+        storyBeatElapsedMs = 0;
+        storyBeatDwellMs = storyBeatDwell(storySteps.length);
+        setStoryBeat(index, {
+          manual: false,
+          center: true,
+          pulse: false,
+          follow: options.follow === true,
+          linked: options.linked === true,
+          followInstant: options.followInstant === true
+        });
+        resetProgress(index / storySteps.length);
+        renderPlayback();
+        return true;
+      }
+
+      function updateUrl(view) {
+        try {
+          history.replaceState(null, '', location.pathname + location.search + (view ? '#view=' + encodeURIComponent(view.id) : ''));
+        } catch (_) {}
+      }
+
+      function showAll(options) {
+        options = options || {};
+        if (options.restore !== true) momentRestoreGeneration += 1;
+        clearChapterPreview({ clearIntents: true });
+        if (playing && options.playback !== true) pausePlayback();
+        if (options.playback !== true) storyPlaybackComplete = false;
+        cancelHandoff('overview');
+        activeIndex = -1;
+        renderStoryTrail(null);
+        if (options.clearFocus !== false) Archify.focus.clear({ updateUrl: false });
+        if (options.resetView !== false && Archify.view && typeof Archify.view.reset === 'function') {
+          Archify.view.reset({ automatic: true });
+        }
+        render();
+        if (options.updateUrl !== false) updateUrl(null);
+      }
+
+      function activate(index, options) {
+        options = options || {};
+        if (options.restore !== true) momentRestoreGeneration += 1;
+        if (playing && options.playback !== true) pausePlayback();
+        if (options.playback !== true) storyPlaybackComplete = false;
+        if (index < 0) { showAll(options); return true; }
+        if (index >= views.length) return false;
+        clearChapterPreview({ clearIntents: true });
+        var previousIndex = activeIndex;
+        var previous = previousIndex >= 0 ? views[previousIndex] : null;
+        var outgoingBeatIndex = storyBeatIndex;
+        cancelHandoff('replaced');
+        activeIndex = index;
+        var view = views[index];
+        Archify.focus.setMany(view.focus, {
+          toggle: false,
+          updateUrl: false,
+          mode: 'selection',
+          label: view.label,
+          hideChip: true
+        });
+        renderStoryTrail(view);
+        beginHandoff(previousIndex, index, previous, view, outgoingBeatIndex, options.playback === true ? 'playback' : 'guided');
+        syncStoryControlsDisabled();
+        render();
+        if (options.updateUrl !== false) updateUrl(view);
+        return true;
+      }
+
+      function activateById(id, options) {
+        var index = views.findIndex(function (view) { return view.id === id; });
+        return index >= 0 && activate(index, options);
+      }
+
+      prev.addEventListener('click', function () { activate(activeIndex - 1); });
+      next.addEventListener('click', function () { activate(activeIndex + 1); });
+      all.addEventListener('click', function () { showAll(); });
+      play.addEventListener('click', togglePlayback);
+      beatLink.addEventListener('click', copyStoryMomentLink);
+      trail.addEventListener('focusin', function (event) {
+        if (!event.target.closest('[data-story-node]')) return;
+        if (playing) pausePlayback();
+      });
+      trail.addEventListener('click', function (event) {
+        var stop = event.target.closest('[data-story-node]');
+        if (!stop || stop.disabled) return;
+        selectStoryBeat(Number(stop.getAttribute('data-story-index')));
+      });
+      trail.addEventListener('keydown', function (event) {
+        if (event.key !== 'Enter' && event.key !== ' ') return;
+        var stop = event.target.closest('[data-story-node]');
+        if (!stop || stop.disabled) return;
+        event.preventDefault();
+        selectStoryBeat(Number(stop.getAttribute('data-story-index')));
+      });
+      chapterList.addEventListener('click', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        if (!button) return;
+        activateById(button.getAttribute('data-guided-view-id'));
+      });
+      chapterList.addEventListener('pointerover', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        if (!button || !hoverCapable() || event.pointerType === 'touch') return;
+        if (event.relatedTarget && button.contains(event.relatedTarget)) return;
+        setChapterPreviewIntent('pointer', chapterButtons.indexOf(button));
+      });
+      chapterList.addEventListener('pointerout', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        if (!button || (event.relatedTarget && button.contains(event.relatedTarget))) return;
+        clearChapterPreviewIntent('pointer', chapterButtons.indexOf(button));
+      });
+      chapterIndex.addEventListener('focusin', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        if (!button) return;
+        setChapterPreviewIntent('focus', chapterButtons.indexOf(button));
+      });
+      chapterIndex.addEventListener('focusout', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        if (!button || (event.relatedTarget && button.contains(event.relatedTarget))) return;
+        clearChapterPreviewIntent('focus', chapterButtons.indexOf(button));
+      });
+      chapterList.addEventListener('keydown', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        var index = chapterButtons.indexOf(button);
+        if (index < 0) return;
+        var target = null;
+        if (event.key === 'ArrowRight') target = Math.min(chapterButtons.length - 1, index + 1);
+        else if (event.key === 'ArrowLeft') target = Math.max(0, index - 1);
+        else if (event.key === 'Home') target = 0;
+        else if (event.key === 'End') target = chapterButtons.length - 1;
+        if (target === null) return;
+        event.preventDefault();
+        focusChapterButton(target);
+      });
+
+      // A direct node exploration supersedes the curated view. Capture phase
+      // releases the view before the focus explorer writes its own deep link.
+      function releaseForNode(event) {
+        if (activeIndex >= 0 && event.target.closest('[data-node-id]')) {
+          pausePlayback();
+          showAll({ clearFocus: false, updateUrl: false });
+        }
+      }
+      svg.addEventListener('click', releaseForNode, true);
+      svg.addEventListener('keydown', function (event) {
+        if (event.key === 'Enter' || event.key === ' ') releaseForNode(event);
+      }, true);
+
+      document.addEventListener('keydown', function (event) {
+        if (event.metaKey || event.ctrlKey || event.altKey) return;
+        if (document.documentElement.getAttribute('data-guide-open') === 'true') return;
+        var target = event.target;
+        if (target && (target.tagName === 'INPUT' || target.tagName === 'TEXTAREA' || target.isContentEditable)) return;
+        if (event.key === ']') {
+          event.preventDefault();
+          if (activeIndex < views.length - 1) activate(activeIndex + 1);
+        } else if (event.key === '[') {
+          event.preventDefault();
+          if (activeIndex >= 0) activate(activeIndex - 1);
+        } else if (event.key.toLowerCase() === 'p') {
+          event.preventDefault();
+          togglePlayback();
+        } else if (event.key === 'Escape' && activePreviewIndex >= 0) {
+          event.preventDefault();
+          event.stopImmediatePropagation();
+          clearChapterPreview({ clearIntents: true });
+        } else if (event.key === 'Escape' && activeIndex >= 0) {
+          event.preventDefault();
+          showAll();
+        }
+      }, true);
+
+      function syncViewFromHash() {
+        try {
+          var params = new URLSearchParams(location.hash.replace(/^#/, ''));
+          var initial = params.get('view');
+          var requestedBeat = params.get('beat');
+          var restoreGeneration = ++momentRestoreGeneration;
+          if (initial) {
+            var activated = activateById(initial, { updateUrl: false, restore: true });
+            if (!activated) {
+              showAll({ updateUrl: false, restore: true });
+              return;
+            }
+            if (requestedBeat) afterHandoff(function () {
+              if (restoreGeneration !== momentRestoreGeneration) return;
+              var latest = new URLSearchParams(location.hash.replace(/^#/, ''));
+              if (latest.get('view') !== initial || latest.get('beat') !== requestedBeat) return;
+              if (activeIndex < 0 || views[activeIndex].id !== initial) return;
+              selectStoryBeatById(requestedBeat, { linked: true, follow: true, followInstant: true });
+            });
+          } else if (params.get('focus') || params.get('relation')) {
+            activeIndex = -1;
+            render();
+          } else {
+            showAll({ updateUrl: false, restore: true });
+          }
+        } catch (_) { showAll({ updateUrl: false, restore: true }); }
+      }
+
+      window.addEventListener('hashchange', syncViewFromHash);
+      document.addEventListener('visibilitychange', function () {
+        if (document.hidden) {
+          clearChapterPreview({ clearIntents: true });
+          if (playing) pausePlayback();
+          else clearStoryPulse();
+          settleHandoff('hidden');
+        }
+        else if (!document.hidden) maybeStartSharePlayback();
+      });
+      if (window.matchMedia) {
+        var guidedMotionQuery = window.matchMedia('(prefers-reduced-motion: reduce)');
+        var onGuidedMotionChange = function () {
+          if (guidedMotionQuery.matches) {
+            if (playing) pausePlayback();
+            else clearStoryPulse();
+            settleHandoff('reduced-motion');
+          }
+        };
+        if (typeof guidedMotionQuery.addEventListener === 'function') guidedMotionQuery.addEventListener('change', onGuidedMotionChange);
+        else if (typeof guidedMotionQuery.addListener === 'function') guidedMotionQuery.addListener(onGuidedMotionChange);
+      }
+      if (document.documentElement.getAttribute('data-embed') !== 'true' && typeof MutationObserver !== 'undefined' && typeof Node !== 'undefined' && svg instanceof Node && document.documentElement instanceof Node) {
+        var chapterPreviewOwnerObserver = new MutationObserver(syncChapterPreview);
+        chapterPreviewOwnerObserver.observe(svg, {
+          attributes: true,
+          attributeFilter: [
+            'data-route-picking', 'data-route-active', 'data-lens-active',
+            'data-legend-preview-active', 'data-relationship-preview-active',
+            'data-intent-trace-active', 'data-focus-active'
+          ]
+        });
+        var storyMotionObserver = new MutationObserver(function () {
+          if (document.documentElement.getAttribute('data-motion') !== 'live') clearStoryPulse();
+          renderPlayback();
+        });
+        storyMotionObserver.observe(document.documentElement, { attributes: true, attributeFilter: ['data-motion'] });
+      }
+      window.addEventListener('beforeprint', function () {
+        clearChapterPreview({ clearIntents: true });
+        if (playing) pausePlayback();
+        else clearStoryPulse();
+        settleHandoff('print');
+      });
+      syncViewFromHash();
+      if (autoplayPending) {
+        requestAnimationFrame(function () {
+          requestAnimationFrame(maybeStartSharePlayback);
+        });
+      }
+
+      return {
+        count: views.length,
+        activate: activateById,
+        showAll: showAll,
+        play: startPlayback,
+        playCurrent: startCurrentViewPlayback,
+        pause: pausePlayback,
+        beatLink: storyMomentLink,
+        copyBeatLink: copyStoryMomentLink,
+        cancelHandoff: cancelHandoff,
+        settleHandoff: settleHandoff,
+        clearPreview: function () { return clearChapterPreview({ clearIntents: true }); },
+        isPlaying: function () { return playing; },
+        handoff: function () {
+          return currentHandoff ? { id: currentHandoff.id, mode: currentHandoff.mode, anchor: currentHandoff.anchor || null } : null;
+        },
+        active: function () { return activeIndex < 0 ? null : views[activeIndex].id; },
+        preview: function () { return activePreviewIndex < 0 ? null : views[activePreviewIndex].id; },
+        delta: function (id) {
+          var index = views.findIndex(function (view) { return view.id === id; });
+          if (index < 0) return null;
+          var value = chapterDelta(activeIndex >= 0 ? views[activeIndex] : null, views[index]);
+          return { stay: value.stay.slice(), enter: value.enter.slice(), leave: value.leave.slice() };
+        },
+        beat: function () {
+          var step = storyBeatIndex >= 0 ? storySteps[storyBeatIndex] : null;
+          return step ? {
+            index: step.index,
+            position: step.index + 1,
+            total: storySteps.length,
+            nodeId: step.nodeId,
+            relation: step.relation,
+            edgeKeys: step.edgeKeys.slice()
+          } : null;
+        },
+        focus: function () { return activeIndex < 0 ? [] : views[activeIndex].focus.slice(); }
+      };
+    })();
+
+    /* ============================================================
+       Adaptive Reader Shell — one diagram across laptop and monitor.
+       The canonical SVG and viewBox never change. On ordinary desktop pages,
+       wide diagrams receive only enough outer width to use the available
+       height without pushing summary cards below the viewport. Mobile,
+       embed, presentation, print, and non-wide diagrams retain their own
+       established layout contracts.
+       ============================================================ */
+    Archify.waitForStableLayout = function (options) {
+      options = options || {};
+      var maximumFrames = Math.max(1, Number(options.maximumFrames) || 240);
+      var fontsReady = document.fonts && document.fonts.ready
+        ? document.fonts.ready.catch(function () {})
+        : Promise.resolve();
+      return fontsReady.then(function () {
+        if (typeof options.schedule === 'function') options.schedule();
+        return new Promise(function (resolve, reject) {
+          var previous = '';
+          var stableFrames = 0;
+          var sampledFrames = 0;
+          function sample() {
+            sampledFrames += 1;
+            if (typeof options.pending === 'function' && options.pending()) {
+              previous = '';
+              stableFrames = 0;
+            } else {
+              var current = typeof options.snapshot === 'function' ? options.snapshot() : '';
+              if (current === previous) stableFrames += 1;
+              else {
+                previous = current;
+                stableFrames = 0;
+              }
+              if (stableFrames >= 3) {
+                resolve({ stable: true, snapshot: current, sampledFrames: sampledFrames });
+                return;
+              }
+            }
+            if (sampledFrames >= maximumFrames) {
+              reject(new Error(options.timeoutMessage || 'Layout did not reach stable dimensions.'));
+              return;
+            }
+            requestAnimationFrame(sample);
+          }
+          requestAnimationFrame(sample);
+        });
+      });
+    };
+
+    Archify.readerLayout = (function () {
+      var html = document.documentElement;
+      var body = document.body;
+      var shell = document.querySelector('.container');
+      var diagram = document.querySelector('.diagram-container');
+      var svg = diagram && diagram.querySelector(':scope > svg');
+      var header = shell && shell.querySelector('.header');
+      var guided = shell && shell.querySelector('.guided-views');
+      var cards = shell && shell.querySelector('.cards');
+      var viewBox = svg && svg.viewBox && svg.viewBox.baseVal;
+      var ratio = viewBox && viewBox.height > 0 ? viewBox.width / viewBox.height : 0;
+      var frame = 0;
+      var settleFrame = 0;
+      var lastWidth = 0;
+      var WIDE_RATIO = 1.55;
+      var MIN_DESKTOP_WIDTH = 1024;
+      var MIN_READER_WIDTH = 960;
+      var MAX_READER_WIDTH = 1920;
+      var SAFE_BOTTOM_GAP = 12;
+
+      if (diagram && ratio >= WIDE_RATIO) {
+        diagram.setAttribute('data-wide-diagram', 'true');
+        html.setAttribute('data-diagram-shape', 'wide');
+      }
+
+      function number(value) {
+        var parsed = parseFloat(value);
+        return Number.isFinite(parsed) ? parsed : 0;
+      }
+      function visible(element) {
+        return Boolean(element && !element.hidden && window.getComputedStyle(element).display !== 'none');
+      }
+      function outerHeight(element) {
+        if (!visible(element)) return 0;
+        var style = window.getComputedStyle(element);
+        return element.getBoundingClientRect().height + number(style.marginTop) + number(style.marginBottom);
+      }
+      function eligible() {
+        return Boolean(
+          shell && diagram && svg && ratio >= WIDE_RATIO &&
+          window.innerWidth >= MIN_DESKTOP_WIDTH &&
+          html.getAttribute('data-embed') !== 'true' &&
+          html.getAttribute('data-present') !== 'true' &&
+          (!window.matchMedia || !window.matchMedia('print').matches)
+        );
+      }
+      function clear() {
+        html.style.removeProperty('--archify-reader-width');
+        html.removeAttribute('data-reader-layout');
+        html.removeAttribute('data-reader-overflow');
+        lastWidth = 0;
+      }
+      function chromeMetrics() {
+        var bodyStyle = window.getComputedStyle(body);
+        var diagramStyle = window.getComputedStyle(diagram);
+        return {
+          bodyX: number(bodyStyle.paddingLeft) + number(bodyStyle.paddingRight),
+          bodyY: number(bodyStyle.paddingTop) + number(bodyStyle.paddingBottom),
+          diagramX: number(diagramStyle.paddingLeft) + number(diagramStyle.paddingRight) +
+            number(diagramStyle.borderLeftWidth) + number(diagramStyle.borderRightWidth),
+          diagramY: number(diagramStyle.paddingTop) + number(diagramStyle.paddingBottom) +
+            number(diagramStyle.borderTopWidth) + number(diagramStyle.borderBottomWidth)
+        };
+      }
+      function applyWidth(width) {
+        var rounded = Math.round(width);
+        if (Math.abs(rounded - lastWidth) < 1) return false;
+        lastWidth = rounded;
+        html.style.setProperty('--archify-reader-width', rounded + 'px');
+        html.setAttribute('data-reader-layout', 'adaptive');
+        return true;
+      }
+      function settleOverflow(minWidth) {
+        if (settleFrame) cancelAnimationFrame(settleFrame);
+        settleFrame = requestAnimationFrame(function () {
+          settleFrame = 0;
+          if (!eligible() || !lastWidth) return;
+          var overflow = Math.max(
+            document.documentElement.scrollHeight,
+            document.body.scrollHeight
+          ) - window.innerHeight;
+          if (overflow > 1 && lastWidth > minWidth) {
+            applyWidth(Math.max(minWidth, lastWidth - overflow * ratio - 4));
+            html.setAttribute('data-reader-overflow', 'reduced');
+          } else if (overflow > 1) {
+            html.setAttribute('data-reader-overflow', 'authored');
+          } else {
+            html.removeAttribute('data-reader-overflow');
+          }
+        });
+      }
+      function measure() {
+        frame = 0;
+        if (!eligible()) {
+          clear();
+          return null;
+        }
+        var chrome = chromeMetrics();
+        var viewportCap = Math.max(0, window.innerWidth - chrome.bodyX);
+        var minWidth = Math.min(MIN_READER_WIDTH, viewportCap);
+        var maxWidth = Math.min(MAX_READER_WIDTH, viewportCap);
+        var fixedHeight = chrome.bodyY + chrome.diagramY + SAFE_BOTTOM_GAP +
+          outerHeight(header) + outerHeight(guided) + outerHeight(cards);
+        var availableSvgHeight = Math.max(1, window.innerHeight - fixedHeight);
+        var desiredWidth = availableSvgHeight * ratio + chrome.diagramX;
+        var width = Math.max(minWidth, Math.min(maxWidth, desiredWidth));
+        applyWidth(width);
+        settleOverflow(minWidth);
+        return {
+          ratio: ratio,
+          width: Math.round(width),
+          availableSvgHeight: Math.round(availableSvgHeight),
+          fixedHeight: Math.round(fixedHeight)
+        };
+      }
+      function schedule() {
+        if (frame) return;
+        frame = requestAnimationFrame(measure);
+      }
+      function stableSnapshot() {
+        var shellRect = shell ? shell.getBoundingClientRect() : { width: 0, height: 0 };
+        var diagramRect = diagram ? diagram.getBoundingClientRect() : { width: 0, height: 0 };
+        return [
+          lastWidth,
+          html.getAttribute('data-reader-layout') || '',
+          html.getAttribute('data-reader-overflow') || '',
+          Math.ceil(document.documentElement.scrollWidth),
+          Math.ceil(document.documentElement.scrollHeight),
+          Math.ceil(document.body.scrollWidth),
+          Math.ceil(document.body.scrollHeight),
+          Math.round(shellRect.width * 100) / 100,
+          Math.round(shellRect.height * 100) / 100,
+          Math.round(diagramRect.width * 100) / 100,
+          Math.round(diagramRect.height * 100) / 100
+        ].join('|');
+      }
+      function whenStable() {
+        return Archify.waitForStableLayout({
+          schedule: schedule,
+          pending: function () { return Boolean(frame || settleFrame); },
+          snapshot: stableSnapshot,
+          timeoutMessage: 'Adaptive reader layout did not reach stable dimensions.'
+        });
+      }
+
+      window.addEventListener('resize', schedule, { passive: true });
+      window.addEventListener('load', schedule, { once: true });
+      if (document.fonts && document.fonts.ready) document.fonts.ready.then(schedule).catch(function () {});
+      if (typeof ResizeObserver === 'function') {
+        var resizeObserver = new ResizeObserver(schedule);
+        [header, guided, cards].forEach(function (element) { if (element) resizeObserver.observe(element); });
+      }
+      if (typeof MutationObserver === 'function') {
+        var contentObserver = new MutationObserver(schedule);
+        if (guided) contentObserver.observe(guided, { attributes: true, childList: true, subtree: true });
+        if (cards) contentObserver.observe(cards, { attributes: true, childList: true, subtree: true });
+        contentObserver.observe(html, { attributes: true, attributeFilter: ['data-embed', 'data-present'] });
+      }
+      schedule();
+
+      return {
+        measure: measure,
+        schedule: schedule,
+        whenStable: whenStable,
+        active: function () { return html.getAttribute('data-reader-layout') === 'adaptive'; },
+        receipt: function () { return { ratio: ratio, width: lastWidth }; }
+      };
+    })();
+
+    /* ============================================================
+       Viewer Chrome Layout — keep HTML controls clear of the canonical SVG
+       stage without changing authored geometry. The dock keeps its floating
+       appearance while a small bottom stage rail becomes part of the reader
+       budget whenever its zero-reserve position would enter the stage.
+       ============================================================ */
+    Archify.viewerChromeLayout = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container && container.querySelector(':scope > svg');
+      var nav = container && container.querySelector('.diagram-nav');
+      var legend = svg && svg.querySelector('[data-legend]');
+      var frame = 0;
+      var settleFrame = 0;
+      var reserve = 0;
+      var railLatched = false;
+      var probingBaseline = false;
+      var probePromise = null;
+      var baselineIntersectionArea = 0;
+      var baselineStageGap = null;
+      var restorableReserve = 0;
+      var probeFallbackReserve = 0;
+      var lastReceipt = null;
+      var SAFE_GAP = 10;
+
+      function visible(element) {
+        if (!element || element.hidden) return false;
+        var style = window.getComputedStyle(element);
+        return style.display !== 'none' && style.visibility !== 'hidden';
+      }
+      function usable(rect) {
+        return Boolean(rect && rect.width > 0 && rect.height > 0);
+      }
+      function intersectionArea(a, b) {
+        var width = Math.max(0, Math.min(a.right, b.right) - Math.max(a.left, b.left));
+        var height = Math.max(0, Math.min(a.bottom, b.bottom) - Math.max(a.top, b.top));
+        return width * height;
+      }
+      function protectedStageRect() {
+        if (!svg) return null;
+        var rect = svg.getBoundingClientRect();
+        var transform = '';
+        try { transform = window.getComputedStyle(svg).transform || ''; } catch (_) {}
+        var scaleX = 1;
+        var scaleY = 1;
+        var translateX = 0;
+        var translateY = 0;
+        var matrix = transform.match(/^matrix\(([^)]+)\)$/);
+        var matrix3d = transform.match(/^matrix3d\(([^)]+)\)$/);
+        if (matrix) {
+          var values = matrix[1].split(',').map(Number);
+          if (values.length === 6 && values.every(Number.isFinite)) {
+            scaleX = Math.abs(values[0]) || 1;
+            scaleY = Math.abs(values[3]) || 1;
+            translateX = values[4];
+            translateY = values[5];
+          }
+        } else if (matrix3d) {
+          var values3d = matrix3d[1].split(',').map(Number);
+          if (values3d.length === 16 && values3d.every(Number.isFinite)) {
+            scaleX = Math.abs(values3d[0]) || 1;
+            scaleY = Math.abs(values3d[5]) || 1;
+            translateX = values3d[12];
+            translateY = values3d[13];
+          }
+        }
+        var width = rect.width / scaleX;
+        var height = rect.height / scaleY;
+        var left = rect.left - translateX;
+        var top = rect.top - translateY;
+        return {
+          x: left,
+          y: top,
+          left: left,
+          top: top,
+          right: left + width,
+          bottom: top + height,
+          width: width,
+          height: height
+        };
+      }
+      function eligible() {
+        return Boolean(
+          container && svg && nav &&
+          window.innerWidth > 720 &&
+          html.getAttribute('data-embed') !== 'true' &&
+          (!window.matchMedia || !window.matchMedia('print').matches) &&
+          visible(nav)
+        );
+      }
+      function cameraAtBaseline() {
+        var scale = Number(svg && svg.getAttribute('data-view-scale'));
+        return !Number.isFinite(scale) || Math.abs(scale - 1) < 0.001;
+      }
+      function writeReserve(next, options) {
+        options = options || {};
+        next = Math.max(0, Math.ceil(next));
+        if (Math.abs(next - reserve) < 1) return false;
+        reserve = next;
+        if (reserve) {
+          if (options.remember !== false) restorableReserve = reserve;
+          container.style.setProperty('--archify-nav-reserve', reserve + 'px');
+          container.setAttribute('data-nav-stage-rail', 'true');
+          html.setAttribute('data-nav-stage-rail', 'true');
+        } else {
+          container.style.removeProperty('--archify-nav-reserve');
+          container.removeAttribute('data-nav-stage-rail');
+          html.removeAttribute('data-nav-stage-rail');
+        }
+        if (Archify.readerLayout && typeof Archify.readerLayout.schedule === 'function') {
+          Archify.readerLayout.schedule();
+        }
+        if (options.quiet !== true) {
+          if (settleFrame) cancelAnimationFrame(settleFrame);
+          settleFrame = requestAnimationFrame(function () {
+            settleFrame = 0;
+            schedule();
+          });
+        }
+        return true;
+      }
+      function clear(options) {
+        options = options || {};
+        railLatched = false;
+        if (options.preserveBaseline !== true) {
+          baselineIntersectionArea = 0;
+          baselineStageGap = null;
+          restorableReserve = 0;
+        }
+        writeReserve(0, { quiet: probingBaseline });
+        lastReceipt = {
+          eligible: false,
+          active: false,
+          reserve: 0,
+          gap: SAFE_GAP,
+          baselineStageGap: null,
+          stageGap: null,
+          stageIntersectionArea: 0,
+          baselineIntersectionArea: 0,
+          intersectionArea: 0
+        };
+        return lastReceipt;
+      }
+      function measure() {
+        frame = 0;
+        if (probingBaseline) return null;
+        if (!eligible()) return clear({ preserveBaseline: !cameraAtBaseline() });
+
+        /* Camera transforms enlarge and translate authored paint inside the
+           fixed, clipped root SVG viewport. They must not redefine the
+           reader's baseline rail.
+           Restore that baseline after temporary mobile/embed/print states.
+           Camera Reset preserves the established rail while viewport, mode,
+           and content changes remain responsible for baseline reprobes. */
+        if (!cameraAtBaseline()) {
+          if (reserve === 0 && restorableReserve > 0) {
+            if (writeReserve(restorableReserve)) return null;
+          }
+          var cameraNavRect = nav.getBoundingClientRect();
+          var cameraLegendRect = visible(legend) ? legend.getBoundingClientRect() : null;
+          var cameraStageRect = protectedStageRect();
+          var cameraIntersectionArea = usable(cameraLegendRect) && intersectionArea(cameraNavRect, cameraStageRect) > 0
+            ? intersectionArea(cameraNavRect, cameraLegendRect)
+            : 0;
+          lastReceipt = {
+            eligible: true,
+            active: reserve > 0,
+            reserve: reserve,
+            gap: SAFE_GAP,
+            baselineStageGap: baselineStageGap == null ? null : Math.round(baselineStageGap * 100) / 100,
+            stageGap: Math.round((cameraNavRect.top - cameraStageRect.bottom) * 100) / 100,
+            stageIntersectionArea: Math.round(intersectionArea(cameraNavRect, cameraStageRect) * 100) / 100,
+            baselineIntersectionArea: Math.round(baselineIntersectionArea * 100) / 100,
+            intersectionArea: Math.round(cameraIntersectionArea * 100) / 100
+          };
+          return lastReceipt;
+        }
+
+        var navRect = nav.getBoundingClientRect();
+        var legendRect = visible(legend) ? legend.getBoundingClientRect() : null;
+        var stageRect = protectedStageRect();
+        if (!usable(navRect) || !usable(stageRect)) return clear();
+
+        var actualIntersectionArea = usable(legendRect) ? intersectionArea(navRect, legendRect) : 0;
+        var stageGap = navRect.top - stageRect.bottom;
+        if (!railLatched && reserve === 0) {
+          baselineIntersectionArea = actualIntersectionArea;
+          baselineStageGap = stageGap;
+          if (stageGap < SAFE_GAP) {
+            railLatched = true;
+            if (writeReserve(Math.max(0, SAFE_GAP - stageGap))) return null;
+          }
+        } else if (railLatched && reserve > 0 && stageGap < SAFE_GAP) {
+          /* Keep the decision latched while Adaptive Reader incorporates the
+             rail. Presentation and rounded layout values can require one
+             bounded follow-up before the full stage gap is established. */
+          var remaining = Math.max(1, SAFE_GAP - stageGap);
+          if (writeReserve(reserve + remaining)) return null;
+        }
+
+        navRect = nav.getBoundingClientRect();
+        legendRect = visible(legend) ? legend.getBoundingClientRect() : null;
+        stageRect = protectedStageRect();
+        stageGap = navRect.top - stageRect.bottom;
+        lastReceipt = {
+          eligible: true,
+          active: reserve > 0,
+          reserve: reserve,
+          gap: SAFE_GAP,
+          baselineStageGap: baselineStageGap == null ? null : Math.round(baselineStageGap * 100) / 100,
+          stageGap: Math.round(stageGap * 100) / 100,
+          stageIntersectionArea: Math.round(intersectionArea(navRect, stageRect) * 100) / 100,
+          baselineIntersectionArea: Math.round(baselineIntersectionArea * 100) / 100,
+          intersectionArea: Math.round((usable(legendRect) ? intersectionArea(navRect, legendRect) : 0) * 100) / 100
+        };
+        return lastReceipt;
+      }
+      function reprobe() {
+        if (probingBaseline) return probePromise || Promise.resolve(false);
+        if (!cameraAtBaseline()) {
+          schedule();
+          return Promise.resolve(false);
+        }
+        if (!reserve && !railLatched && !restorableReserve) {
+          schedule();
+          return Promise.resolve(false);
+        }
+        probeFallbackReserve = restorableReserve || reserve;
+        probingBaseline = true;
+        railLatched = false;
+        baselineIntersectionArea = 0;
+        baselineStageGap = null;
+        restorableReserve = 0;
+        writeReserve(0, { quiet: true });
+        var readerReady = Archify.readerLayout && typeof Archify.readerLayout.whenStable === 'function'
+          ? Archify.readerLayout.whenStable().catch(function () {})
+          : Promise.resolve();
+        probePromise = readerReady.then(function () {
+          probingBaseline = false;
+          probePromise = null;
+          if (!cameraAtBaseline() && probeFallbackReserve > 0) {
+            restorableReserve = probeFallbackReserve;
+          }
+          probeFallbackReserve = 0;
+          schedule();
+          return true;
+        });
+        return probePromise;
+      }
+      function schedule() {
+        if (frame) return;
+        frame = requestAnimationFrame(measure);
+      }
+      function stableSnapshot() {
+        var containerRect = container ? container.getBoundingClientRect() : { width: 0, height: 0 };
+        var navRect = nav ? nav.getBoundingClientRect() : { top: 0, left: 0 };
+        var legendRect = legend ? legend.getBoundingClientRect() : { top: 0, left: 0 };
+        return [
+          reserve,
+          Math.round(containerRect.width * 100) / 100,
+          Math.round(containerRect.height * 100) / 100,
+          Math.round(navRect.left * 100) / 100,
+          Math.round(navRect.top * 100) / 100,
+          Math.round(legendRect.left * 100) / 100,
+          Math.round(legendRect.top * 100) / 100,
+          railLatched ? 'latched' : 'clear',
+          lastReceipt ? lastReceipt.stageGap : ''
+        ].join('|');
+      }
+      function whenStable() {
+        return Archify.waitForStableLayout({
+          schedule: schedule,
+          pending: function () { return Boolean(frame || settleFrame || probingBaseline); },
+          snapshot: stableSnapshot,
+          timeoutMessage: 'Viewer chrome layout did not reach stable dimensions.'
+        });
+      }
+
+      window.addEventListener('resize', reprobe, { passive: true });
+      window.addEventListener('load', schedule, { once: true });
+      window.addEventListener('beforeprint', schedule);
+      window.addEventListener('afterprint', reprobe);
+      if (document.fonts && document.fonts.ready) document.fonts.ready.then(reprobe).catch(function () {});
+      if (typeof ResizeObserver === 'function') {
+        var resizeObserver = new ResizeObserver(schedule);
+        [nav, svg, legend].forEach(function (element) { if (element) resizeObserver.observe(element); });
+      }
+      if (typeof MutationObserver === 'function') {
+        var contentObserver = new MutationObserver(function (records) {
+          var viewerModeChanged = records.some(function (record) { return record.target === html; });
+          if (viewerModeChanged) reprobe();
+          else schedule();
+        });
+        if (legend) contentObserver.observe(legend, { attributes: true, childList: true, subtree: true });
+        contentObserver.observe(html, {
+          attributes: true,
+          attributeFilter: ['data-embed', 'data-present', 'data-preset', 'data-theme']
+        });
+      }
+      schedule();
+
+      return {
+        measure: measure,
+        schedule: schedule,
+        reprobe: reprobe,
+        whenStable: whenStable,
+        stageRect: protectedStageRect,
+        active: function () { return reserve > 0; },
+        receipt: function () { return lastReceipt || measure(); }
+      };
+    })();
+
+    Archify.view = (function () {
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector('svg');
+      var outBtn = container.querySelector('[data-view="out"]');
+      var resetBtn = container.querySelector('[data-view="reset"]');
+      var resetDetailLabel = resetBtn.querySelector('[data-view-detail]');
+      var resetPercentLabel = resetBtn.querySelector('[data-view-percent]');
+      var inBtn = container.querySelector('[data-view="in"]');
+      var state = { scale: 1, x: 0, y: 0, mode: 'overview' };
+      var drag = null;
+      var cameraTimer = null;
+      var cameraFrame = null;
+      var cameraGeneration = 0;
+      var cameraTransaction = null;
+      var clipFrame = 0;
+      var resizeFrame = 0;
+      var autoScrollUntil = 0;
+
+      var viewBox = svg.viewBox && svg.viewBox.baseVal;
+
+      function clamp() {
+        var width = svg.clientWidth || 1;
+        var height = svg.clientHeight || 1;
+        state.x = Math.min(0, Math.max(width - width * state.scale, state.x));
+        state.y = Math.min(0, Math.max(height - height * state.scale, state.y));
+      }
+      function reducedMotion() {
+        return window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches;
+      }
+      function contentMetrics() {
+        if (!viewBox || viewBox.width <= 0 || viewBox.height <= 0) return null;
+        var width = svg.clientWidth || 1;
+        var height = svg.clientHeight || 1;
+        var scale = Math.min(width / viewBox.width, height / viewBox.height);
+        return {
+          width: width,
+          height: height,
+          scale: scale,
+          offsetX: (width - viewBox.width * scale) / 2,
+          offsetY: (height - viewBox.height * scale) / 2
+        };
+      }
+      function logicalViewport() {
+        var metrics = contentMetrics();
+        if (!metrics) return null;
+        var x;
+        var y;
+        var width;
+        var height;
+        if (window.innerWidth <= 720 && container.hasAttribute('data-wide-diagram')) {
+          x = viewBox.x + container.scrollLeft / metrics.scale;
+          y = viewBox.y;
+          width = Math.min(viewBox.width, Math.max(1, container.clientWidth / metrics.scale));
+          height = viewBox.height;
+        } else {
+          x = viewBox.x + ((-state.x / state.scale) - metrics.offsetX) / metrics.scale;
+          y = viewBox.y + ((-state.y / state.scale) - metrics.offsetY) / metrics.scale;
+          width = Math.min(viewBox.width, metrics.width / state.scale / metrics.scale);
+          height = Math.min(viewBox.height, metrics.height / state.scale / metrics.scale);
+        }
+        width = Math.max(1, Math.min(viewBox.width, width));
+        height = Math.max(1, Math.min(viewBox.height, height));
+        x = Math.max(viewBox.x, Math.min(viewBox.x + viewBox.width - width, x));
+        y = Math.max(viewBox.y, Math.min(viewBox.y + viewBox.height - height, y));
+        return { x: x, y: y, width: width, height: height, scale: state.scale };
+      }
+      function detailLevel() {
+        if (state.mode === 'semantic') return 'full';
+        if (state.scale >= 1.75) return 'full';
+        if (state.scale >= 1) return 'read';
+        return 'map';
+      }
+      function renderControls() {
+        var semantic = state.mode === 'semantic' && state.scale > 1.01;
+        var detail = detailLevel();
+        var percent = Math.round(state.scale * 100) + '%';
+        var levelLabel = viewerText('viewer.nav.level.' + detail);
+        var detailHint = detail === 'map'
+          ? viewerText('viewer.nav.detail.map')
+          : detail === 'read'
+            ? viewerText('viewer.nav.detail.read')
+            : viewerText('viewer.nav.detail.full');
+        var resolvedLevel = semantic ? viewerText('viewer.nav.level.auto') : levelLabel;
+        var showDetailLevel = semantic || detail !== 'read';
+        if (resetDetailLabel) {
+          resetDetailLabel.textContent = resolvedLevel;
+          resetDetailLabel.hidden = !showDetailLevel;
+        }
+        if (resetPercentLabel) resetPercentLabel.textContent = percent;
+        resetBtn.toggleAttribute('data-detail-visible', showDetailLevel);
+        resetBtn.title = viewerText('viewer.nav.camera.title', {
+          semantic: semantic ? viewerText('viewer.nav.camera.semantic') : '',
+          hint: detailHint
+        });
+        resetBtn.setAttribute('aria-label', viewerText('viewer.nav.camera', { hint: detailHint }));
+        resetBtn.setAttribute('data-detail-level', detail);
+        container.setAttribute('data-detail-level', detail);
+        container.setAttribute('data-camera-mode', state.mode);
+        container.setAttribute('data-camera-indicator', semantic ? 'true' : 'false');
+      }
+      function clipToViewport(camera) {
+        camera = camera || state;
+        if (camera.scale <= 1.001) {
+          svg.style.removeProperty('clip-path');
+          return;
+        }
+        var width = svg.clientWidth || 1;
+        var height = svg.clientHeight || 1;
+        var scale = camera.scale;
+        var top = Math.max(0, Math.min(height, -camera.y / scale));
+        var left = Math.max(0, Math.min(width, -camera.x / scale));
+        var right = Math.max(0, Math.min(width, width - (width - camera.x) / scale));
+        var bottom = Math.max(0, Math.min(height, height - (height - camera.y) / scale));
+        svg.style.clipPath = 'inset(' + [top, right, bottom, left].map(function (value) {
+          return Math.round(value * 1000) / 1000 + 'px';
+        }).join(' ') + ')';
+      }
+      function cameraSettled(rendered) {
+        return Math.abs(rendered.scale - state.scale) < 0.001 &&
+          Math.abs(rendered.x - state.x) < 0.05 &&
+          Math.abs(rendered.y - state.y) < 0.05;
+      }
+      function syncViewportClip() {
+        if (clipFrame) cancelAnimationFrame(clipFrame);
+        clipFrame = 0;
+        function sample() {
+          clipFrame = 0;
+          var rendered = sampleRenderedState();
+          clipToViewport(rendered);
+          if (!cameraSettled(rendered)) clipFrame = requestAnimationFrame(sample);
+        }
+        sample();
+      }
+      function apply() {
+        clamp();
+        svg.style.transform = 'translate(' + state.x + 'px,' + state.y + 'px) scale(' + state.scale + ')';
+        syncViewportClip();
+        renderControls();
+        outBtn.disabled = state.scale <= 1;
+        inBtn.disabled = state.scale >= 3;
+        container.classList.toggle('is-pannable', state.scale > 1);
+        svg.setAttribute('data-view-scale', String(state.scale));
+        if (Archify.radar && typeof Archify.radar.sync === 'function') Archify.radar.sync();
+        if (Archify.viewerChromeLayout && typeof Archify.viewerChromeLayout.schedule === 'function') {
+          Archify.viewerChromeLayout.schedule();
+        }
+      }
+      function sampleRenderedState() {
+        var transform = '';
+        try { transform = getComputedStyle(svg).transform || ''; } catch (_) {}
+        var match = transform.match(/^matrix\(([^)]+)\)$/);
+        if (!match) return { scale: state.scale, x: state.x, y: state.y, mode: state.mode };
+        var values = match[1].split(',').map(Number);
+        if (values.length !== 6 || !values.every(Number.isFinite)) {
+          return { scale: state.scale, x: state.x, y: state.y, mode: state.mode };
+        }
+        return { scale: values[0], x: values[4], y: values[5], mode: state.mode };
+      }
+      function finishCameraTransaction(transaction, outcome) {
+        if (!transaction || transaction.settled) return false;
+        transaction.settled = true;
+        transaction.state = outcome || 'complete';
+        if (transaction.frame) cancelAnimationFrame(transaction.frame);
+        if (transaction.timer) clearTimeout(transaction.timer);
+        transaction.frame = null;
+        transaction.timer = null;
+        if (cameraTransaction === transaction) cameraTransaction = null;
+        cameraFrame = null;
+        cameraTimer = null;
+        container.classList.remove('is-camera-moving');
+        container.classList.remove('is-camera-transaction');
+        container.removeAttribute('data-camera-transaction');
+        if (Archify.focus && Archify.focus.reposition) Archify.focus.reposition();
+        transaction.resolve({ id: transaction.id, state: transaction.state });
+        return true;
+      }
+      function cameraReceipt(target, options) {
+        var resolver;
+        var transaction = {
+          id: ++cameraGeneration,
+          state: 'running',
+          target: target,
+          settled: false,
+          frame: null,
+          timer: null,
+          finished: new Promise(function (resolve) { resolver = resolve; }),
+          resolve: resolver,
+          cancel: function (reason, commitTarget) {
+            if (transaction.settled) return false;
+            if (commitTarget && transaction.target) {
+              if (Object.prototype.hasOwnProperty.call(transaction.target, 'scrollLeft')) {
+                container.scrollLeft = transaction.target.scrollLeft;
+              } else {
+                state = {
+                  scale: transaction.target.scale,
+                  x: transaction.target.x,
+                  y: transaction.target.y,
+                  mode: transaction.target.mode
+                };
+                apply();
+              }
+            }
+            return finishCameraTransaction(transaction, reason || 'cancelled');
+          }
+        };
+        return transaction;
+      }
+      function stopCameraMotion(reason, commitTarget) {
+        if (cameraTransaction && !cameraTransaction.settled) {
+          cameraTransaction.cancel(reason || 'cancelled', commitTarget === true);
+          return;
+        }
+        if (cameraTimer) clearTimeout(cameraTimer);
+        if (cameraFrame) cancelAnimationFrame(cameraFrame);
+        cameraTimer = null;
+        cameraFrame = null;
+        container.classList.remove('is-camera-moving');
+        container.classList.remove('is-camera-transaction');
+        container.removeAttribute('data-camera-transaction');
+      }
+      function interruptCamera(reason) {
+        if (Archify.guidedViews && Archify.guidedViews.cancelHandoff) {
+          Archify.guidedViews.cancelHandoff(reason || 'manual');
+        }
+        var rendered = sampleRenderedState();
+        stopCameraMotion(reason || 'manual', false);
+        state = rendered;
+        state.mode = 'manual';
+        apply();
+        renderControls();
+        if (Archify.guidedViews && Archify.guidedViews.isPlaying && Archify.guidedViews.isPlaying()) {
+          Archify.guidedViews.pause();
+        }
+        if (Archify.routeProbe && Archify.routeProbe.isJourneyPlaying && Archify.routeProbe.isJourneyPlaying()) {
+          Archify.routeProbe.pauseJourney({ preserveElapsed: true, reason: reason || 'manual' });
+        }
+      }
+      function zoom(next, options) {
+        options = options || {};
+        if (options.manual !== false) interruptCamera();
+        var previous = state.scale;
+        next = Math.max(1, Math.min(3, Math.round(next * 4) / 4));
+        if (next === previous) return;
+        var centerX = (svg.clientWidth || 1) / 2;
+        var centerY = (svg.clientHeight || 1) / 2;
+        var contentX = (centerX - state.x) / previous;
+        var contentY = (centerY - state.y) / previous;
+        state.scale = next;
+        state.x = centerX - contentX * next;
+        state.y = centerY - contentY * next;
+        apply();
+      }
+      function reset(options) {
+        options = options || {};
+        if (options.automatic !== true) interruptCamera();
+        else stopCameraMotion('reset', false);
+        state = { scale: 1, x: 0, y: 0, mode: 'overview' };
+        apply();
+      }
+      function centerAt(logicalX, logicalY, options) {
+        options = options || {};
+        logicalX = Number(logicalX);
+        logicalY = Number(logicalY);
+        var metrics = contentMetrics();
+        if (!metrics || !Number.isFinite(logicalX) || !Number.isFinite(logicalY)) return false;
+        interruptCamera();
+        if (window.innerWidth <= 720 && container.hasAttribute('data-wide-diagram')) {
+          state.scale = 1;
+          state.x = 0;
+          state.y = 0;
+          state.mode = 'manual';
+          apply();
+          var mobileTarget = (logicalX - viewBox.x) * metrics.scale - container.clientWidth / 2;
+          mobileTarget = Math.max(0, Math.min(svg.clientWidth - container.clientWidth, mobileTarget));
+          autoScrollUntil = Date.now() + 80;
+          try { container.scrollTo({ left: mobileTarget, behavior: options.instant ? 'auto' : 'smooth' }); }
+          catch (_) { container.scrollLeft = mobileTarget; }
+          return true;
+        }
+        var minimumScale = Math.max(1, Math.min(3, Number(options.minimumScale) || 1));
+        var requestedScale = Number(options.scale);
+        state.scale = Math.max(minimumScale, Math.min(3, Number.isFinite(requestedScale) ? requestedScale : state.scale));
+        var contentX = metrics.offsetX + (logicalX - viewBox.x) * metrics.scale;
+        var contentY = metrics.offsetY + (logicalY - viewBox.y) * metrics.scale;
+        state.x = metrics.width / 2 - contentX * state.scale;
+        state.y = metrics.height / 2 - contentY * state.scale;
+        state.mode = 'manual';
+        apply();
+        if (Archify.focus && Archify.focus.reposition) Archify.focus.reposition();
+        return true;
+      }
+      function semanticIds(ids, includeNeighbors) {
+        var seeds = {};
+        var wanted = {};
+        (ids || []).forEach(function (id) { seeds[id] = true; wanted[id] = true; });
+        if (includeNeighbors) {
+          Array.prototype.forEach.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'), function (edge) {
+            var from = edge.getAttribute('data-edge-from');
+            var to = edge.getAttribute('data-edge-to');
+            if (seeds[from] || seeds[to]) { wanted[from] = true; wanted[to] = true; }
+          });
+        }
+        return wanted;
+      }
+      function boxesFor(ids, includeNeighbors) {
+        var wanted = semanticIds(ids, includeNeighbors);
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-node-id]'))
+          .filter(function (node) { return wanted[node.getAttribute('data-node-id')]; })
+          .map(function (node) {
+            try { return node.getBBox(); } catch (_) { return null; }
+          })
+          .filter(Boolean);
+      }
+      function frameDesktop(ids, options) {
+        options = options || {};
+        var boxes = boxesFor(ids, options.includeNeighbors === true);
+        if (!boxes.length || !viewBox || viewBox.width <= 0 || viewBox.height <= 0) return false;
+        var svgWidth = svg.clientWidth || 1;
+        var svgHeight = svg.clientHeight || 1;
+        var contentScale = Math.min(svgWidth / viewBox.width, svgHeight / viewBox.height);
+        var contentOffsetX = (svgWidth - viewBox.width * contentScale) / 2;
+        var contentOffsetY = (svgHeight - viewBox.height * contentScale) / 2;
+        var minX = Math.min.apply(Math, boxes.map(function (box) { return box.x; }));
+        var minY = Math.min.apply(Math, boxes.map(function (box) { return box.y; }));
+        var maxX = Math.max.apply(Math, boxes.map(function (box) { return box.x + box.width; }));
+        var maxY = Math.max.apply(Math, boxes.map(function (box) { return box.y + box.height; }));
+        var bounds = {
+          x: contentOffsetX + minX * contentScale,
+          y: contentOffsetY + minY * contentScale,
+          width: Math.max(1, (maxX - minX) * contentScale),
+          height: Math.max(1, (maxY - minY) * contentScale)
+        };
+        var padding = options.padding || 48;
+        var left = padding;
+        var right = svgWidth - padding;
+        var top = padding;
+        var bottom = svgHeight - Math.max(padding, 72);
+        var containerRect = container.getBoundingClientRect();
+        var visibleTop = Math.max(0, -containerRect.top);
+        var visibleBottom = Math.min(svgHeight, window.innerHeight - containerRect.top);
+        if (visibleBottom - visibleTop >= 240) {
+          top = Math.max(top, visibleTop + padding);
+          bottom = Math.min(bottom, visibleBottom - Math.max(padding, 72));
+        }
+        var chip = document.getElementById('focus-chip');
+        if (chip && !chip.hidden) {
+          var lensEnd = chip.offsetLeft + chip.offsetWidth + 24 - (svg.offsetLeft || 0);
+          left = Math.max(left, Math.min(svgWidth * 0.42, lensEnd));
+        }
+        var routeReceipt = document.getElementById('route-probe');
+        if (routeReceipt && !routeReceipt.hidden && routeReceipt.hasAttribute('data-route-journey')) {
+          var receiptTop = routeReceipt.offsetTop;
+          var receiptBottom = receiptTop + routeReceipt.offsetHeight;
+          if (receiptTop < svgHeight / 2) top = Math.max(top, receiptBottom + 24);
+          else bottom = Math.min(bottom, receiptTop - 24);
+        }
+        if (right <= left || bottom <= top) return false;
+        var maxScale = options.maxScale || (options.includeNeighbors ? 1.9 : 2.15);
+        var targetScale = Math.min((right - left) / bounds.width, (bottom - top) / bounds.height) * 0.9;
+        targetScale = Math.max(1, Math.min(maxScale, targetScale));
+        if (targetScale < 1.08) targetScale = 1;
+        var target = {
+          scale: Math.round(targetScale * 100) / 100,
+          x: 0,
+          y: 0,
+          mode: 'semantic'
+        };
+        target.x = (left + right) / 2 - (bounds.x + bounds.width / 2) * target.scale;
+        target.y = (top + bottom) / 2 - (bounds.y + bounds.height / 2) * target.scale;
+        var start = sampleRenderedState();
+        stopCameraMotion('replaced', false);
+        var transaction = cameraReceipt(target, options);
+        cameraTransaction = transaction;
+        var instant = options.instant === true || reducedMotion() || document.hidden;
+        if (instant) {
+          state = target;
+          apply();
+          finishCameraTransaction(transaction, reducedMotion() ? 'reduced-motion' : (document.hidden ? 'hidden' : 'complete'));
+          return transaction;
+        }
+        var duration = Math.max(180, Math.min(520, Number(options.duration) || 420));
+        var startedAt = 0;
+        state = start;
+        state.mode = 'semantic';
+        apply();
+        container.classList.add('is-camera-moving');
+        container.classList.add('is-camera-transaction');
+        container.setAttribute('data-camera-transaction', String(transaction.id));
+        var step = function (timestamp) {
+          if (cameraTransaction !== transaction || transaction.settled) return;
+          if (!startedAt) startedAt = timestamp;
+          var fraction = Math.max(0, Math.min(1, (timestamp - startedAt) / duration));
+          var eased = 1 - Math.pow(1 - fraction, 3);
+          state = {
+            scale: start.scale + (target.scale - start.scale) * eased,
+            x: start.x + (target.x - start.x) * eased,
+            y: start.y + (target.y - start.y) * eased,
+            mode: 'semantic'
+          };
+          apply();
+          if (fraction < 1) {
+            transaction.frame = requestAnimationFrame(step);
+            cameraFrame = transaction.frame;
+          } else {
+            state = target;
+            apply();
+            finishCameraTransaction(transaction, 'complete');
+          }
+        };
+        transaction.frame = requestAnimationFrame(step);
+        cameraFrame = transaction.frame;
+        return transaction;
+      }
+      function reveal(ids, options) {
+        options = options || {};
+        if (window.innerWidth > 720) return frameDesktop(ids, options);
+        stopCameraMotion('replaced', false);
+        state.scale = 1;
+        state.x = 0;
+        state.y = 0;
+        state.mode = 'semantic';
+        apply();
+        if (!container.hasAttribute('data-wide-diagram')) {
+          var contained = cameraReceipt({ scale: 1, x: 0, y: 0, mode: 'semantic' }, options);
+          cameraTransaction = contained;
+          finishCameraTransaction(contained, 'complete');
+          return contained;
+        }
+        var boxes = boxesFor(ids, options.includeNeighbors === true);
+        if (!boxes.length || !viewBox || viewBox.width <= 0) return false;
+        var minX = Math.min.apply(Math, boxes.map(function (box) { return box.x; }));
+        var maxX = Math.max.apply(Math, boxes.map(function (box) { return box.x + box.width; }));
+        var center = ((minX + maxX) / 2 / viewBox.width) * (svg.clientWidth || 1);
+        var target = Math.max(0, Math.min(svg.clientWidth - container.clientWidth, center - container.clientWidth / 2));
+        var transaction = cameraReceipt({ scrollLeft: target }, options);
+        cameraTransaction = transaction;
+        var instant = options.instant === true || reducedMotion() || document.hidden;
+        autoScrollUntil = Date.now() + (instant ? 50 : 470);
+        try { container.scrollTo({ left: target, behavior: instant ? 'auto' : 'smooth' }); }
+        catch (_) { container.scrollLeft = target; }
+        if (instant) finishCameraTransaction(transaction, reducedMotion() ? 'reduced-motion' : (document.hidden ? 'hidden' : 'complete'));
+        else {
+          transaction.timer = setTimeout(function () { finishCameraTransaction(transaction, 'complete'); }, 460);
+          cameraTimer = transaction.timer;
+          container.classList.add('is-camera-moving');
+          container.setAttribute('data-camera-transaction', String(transaction.id));
+        }
+        return transaction;
+      }
+      function syncSemantic() {
+        var guided = Archify.guidedViews && typeof Archify.guidedViews.focus === 'function'
+          ? Archify.guidedViews.focus() : [];
+        if (guided && guided.length) return reveal(guided, { reason: 'guided-sync' });
+        var active = Archify.focus && typeof Archify.focus.active === 'function' ? Archify.focus.active() : null;
+        if (typeof active === 'string') return reveal([active], { includeNeighbors: true, reason: 'focus-sync' });
+        if (Array.isArray(active) && active.length) return reveal(active, { reason: 'selection-sync' });
+        return false;
+      }
+      function pinControls() {
+        container.style.setProperty('--archify-scroll-x', container.scrollLeft + 'px');
+      }
+      function onScroll() {
+        pinControls();
+        if (Archify.radar && typeof Archify.radar.sync === 'function') Archify.radar.sync();
+        if (window.innerWidth <= 720 && container.hasAttribute('data-wide-diagram') && Date.now() > autoScrollUntil) {
+          interruptCamera();
+        }
+      }
+      function onPointerEnd(event) {
+        if (!drag) return;
+        var moved = drag.moved;
+        drag = null;
+        container.classList.remove('is-panning');
+        try { container.releasePointerCapture(event.pointerId); } catch (_) {}
+        if (moved) {
+          container.setAttribute('data-just-panned', 'true');
+          setTimeout(function () { container.removeAttribute('data-just-panned'); }, 80);
+        }
+      }
+
+      inBtn.addEventListener('click', function () { zoom(state.scale + 0.25); });
+      outBtn.addEventListener('click', function () { zoom(state.scale - 0.25); });
+      resetBtn.addEventListener('click', reset);
+      container.addEventListener('pointerdown', function (event) {
+        if (state.scale <= 1 || event.button !== 0 || event.target.closest('.diagram-nav, .focus-chip, .node-finder, .diagram-guide, .overview-map, .route-probe, .semantic-lens') || event.target.closest('[data-node-id]') || event.target.closest('[data-relationship-hit-key]')) return;
+        interruptCamera();
+        drag = { startX: event.clientX, startY: event.clientY, x: state.x, y: state.y, moved: false };
+        container.classList.add('is-panning');
+        try { container.setPointerCapture(event.pointerId); } catch (_) {}
+      });
+      container.addEventListener('pointermove', function (event) {
+        if (!drag) return;
+        var dx = event.clientX - drag.startX;
+        var dy = event.clientY - drag.startY;
+        if (Math.abs(dx) + Math.abs(dy) > 3) drag.moved = true;
+        state.x = drag.x + dx;
+        state.y = drag.y + dy;
+        apply();
+      });
+      container.addEventListener('pointerup', onPointerEnd);
+      container.addEventListener('pointercancel', onPointerEnd);
+      container.addEventListener('scroll', onScroll, { passive: true });
+      window.addEventListener('resize', function () {
+        if (resizeFrame) cancelAnimationFrame(resizeFrame);
+        resizeFrame = requestAnimationFrame(function () {
+          resizeFrame = 0;
+          if (state.mode === 'semantic') syncSemantic();
+          else apply();
+        });
+      });
+      window.addEventListener('hashchange', function () { requestAnimationFrame(syncSemantic); });
+      apply();
+      pinControls();
+      requestAnimationFrame(syncSemantic);
+
+      return {
+        zoomIn: function () { zoom(state.scale + 0.25); },
+        zoomOut: function () { zoom(state.scale - 0.25); },
+        reset: reset,
+        reveal: reveal,
+        centerAt: centerAt,
+        logicalViewport: logicalViewport,
+        sync: syncSemantic,
+        state: function () { return { scale: state.scale, x: state.x, y: state.y, mode: state.mode }; }
+      };
+    })();
+
+    /* ============================================================
+       Semantic Radar — simplified semantic bounds + live viewport.
+       The radar is built at runtime so the checked artifact still contains
+       one canonical SVG block, and export serialization remains untouched.
+       ============================================================ */
+    Archify.radar = (function () {
+      var container = document.querySelector('.diagram-container');
+      var diagram = container.querySelector(':scope > svg');
+      var panel = document.getElementById('overview-map');
+      var panelHead = panel.querySelector('.overview-map-head');
+      var surface = document.getElementById('overview-map-surface');
+      var status = document.getElementById('overview-map-status');
+      var trigger = document.getElementById('btn-overview-map');
+      var closeBtn = document.getElementById('overview-map-close');
+      var expandBtn = document.getElementById('overview-map-expand');
+      var feedback = document.getElementById('overview-map-feedback');
+      var navigation = container.querySelector('.diagram-nav');
+      var passport = document.getElementById('focus-chip');
+      var namespace = 'http://www.w3.org/2000/svg';
+      var viewBox = diagram.viewBox && diagram.viewBox.baseVal;
+      var mapSvg = document.createElementNS(namespace, 'svg');
+      var nodeLayer = document.createElementNS(namespace, 'g');
+      var viewport = document.createElementNS(namespace, 'rect');
+      var nodes = [];
+      var viewportDrag = null;
+      var panelDrag = null;
+      var manualPosition = null;
+      var lastPlacement = null;
+      var requestedOpen = false;
+      var passportYielded = false;
+      var passportPreviousAriaHidden = null;
+      var syncFrame = 0;
+      var spaceRetryTimer = 0;
+      var spaceRetryCount = 0;
+      var placementGap = 16;
+
+      mapSvg.setAttribute('role', 'group');
+      mapSvg.setAttribute('aria-label', viewerText('viewer.radar.nodes'));
+      mapSvg.setAttribute('preserveAspectRatio', 'xMidYMid meet');
+      nodeLayer.setAttribute('class', 'overview-map-nodes');
+      viewport.setAttribute('class', 'overview-map-viewport');
+      viewport.setAttribute('rx', '3');
+      viewport.setAttribute('ry', '3');
+      mapSvg.appendChild(nodeLayer);
+      mapSvg.appendChild(viewport);
+      surface.appendChild(mapSvg);
+
+      function nodeLabel(node, fallback) {
+        return node.getAttribute('data-node-label') ||
+          (node.getAttribute('aria-label') || fallback).replace(/^Focus\s+/, '').split(',')[0];
+      }
+      function build() {
+        if (!viewBox || viewBox.width <= 0 || viewBox.height <= 0) return false;
+        mapSvg.setAttribute('viewBox', [viewBox.x, viewBox.y, viewBox.width, viewBox.height].join(' '));
+        nodeLayer.textContent = '';
+        nodes = [];
+        Array.prototype.forEach.call(diagram.querySelectorAll('[data-node-id]'), function (node) {
+          var box;
+          try { box = node.getBBox(); } catch (_) { box = null; }
+          if (!box || box.width <= 0 || box.height <= 0) return;
+          var id = node.getAttribute('data-node-id');
+          var rect = document.createElementNS(namespace, 'rect');
+          rect.setAttribute('class', 'overview-map-node');
+          rect.setAttribute('x', String(box.x));
+          rect.setAttribute('y', String(box.y));
+          rect.setAttribute('width', String(Math.max(3, box.width)));
+          rect.setAttribute('height', String(Math.max(3, box.height)));
+          rect.setAttribute('rx', String(Math.max(2, Math.min(8, Math.min(box.width, box.height) * 0.1))));
+          rect.setAttribute('data-radar-node-id', id);
+          rect.setAttribute('data-kind', node.getAttribute('data-node-kind') || 'neutral');
+          rect.setAttribute('tabindex', '0');
+          rect.setAttribute('role', 'button');
+          rect.setAttribute('aria-label', viewerText('viewer.radar.focus', { label: nodeLabel(node, id) }));
+          nodeLayer.appendChild(rect);
+          nodes.push({ id: id, node: node, rect: rect });
+        });
+        status.textContent = viewerText('viewer.radar.fullMap', { count: nodes.length });
+        return true;
+      }
+      function visibleRect(element) {
+        if (!element || element.hidden) return null;
+        var rect = element.getBoundingClientRect();
+        if (rect.width <= 0 || rect.height <= 0 || rect.right <= 0 || rect.bottom <= 0 || rect.left >= window.innerWidth || rect.top >= window.innerHeight) return null;
+        return { left: rect.left, top: rect.top, right: rect.right, bottom: rect.bottom, width: rect.width, height: rect.height };
+      }
+      function panelRectAt(position) {
+        return {
+          left: position.left,
+          top: position.top,
+          right: position.left + panel.offsetWidth,
+          bottom: position.top + panel.offsetHeight,
+          width: panel.offsetWidth,
+          height: panel.offsetHeight
+        };
+      }
+      function rectsIntersect(first, second, gap) {
+        gap = Number(gap) || 0;
+        return first.left < second.right + gap &&
+          first.right > second.left - gap &&
+          first.top < second.bottom + gap &&
+          first.bottom > second.top - gap;
+      }
+      function intersectionArea(first, second) {
+        var width = Math.max(0, Math.min(first.right, second.right) - Math.max(first.left, second.left));
+        var height = Math.max(0, Math.min(first.bottom, second.bottom) - Math.max(first.top, second.top));
+        return width * height;
+      }
+      function clamp(value, minimum, maximum) {
+        if (maximum < minimum) return minimum;
+        return Math.max(minimum, Math.min(maximum, value));
+      }
+      function placementContext() {
+        var containerRect = visibleRect(container);
+        if (!containerRect) return null;
+        var controlRect = visibleRect(navigation);
+        var left = Math.max(placementGap, containerRect.left + placementGap);
+        var top = Math.max(placementGap, containerRect.top + placementGap);
+        var right = Math.min(window.innerWidth - placementGap, containerRect.right - placementGap);
+        var bottom = Math.min(window.innerHeight - placementGap, containerRect.bottom - placementGap);
+        if (controlRect) bottom = Math.min(bottom, controlRect.top - placementGap);
+        var lens = document.getElementById('focus-chip');
+        var lensRect = visibleRect(lens);
+        var legendRect = visibleRect(diagram.querySelector('[data-legend]'));
+        var active = diagram.querySelector('[data-focus-selected]');
+        var activeRect = visibleRect(active);
+        return {
+          bounds: { left: left, top: top, right: right, bottom: bottom },
+          hardBlockers: [lensRect, controlRect, legendRect].filter(Boolean),
+          softBlockers: [activeRect].filter(Boolean),
+          preferredSide: !activeRect || activeRect.left + activeRect.width / 2 > window.innerWidth / 2 ? 'left' : 'right'
+        };
+      }
+      function positionIsValid(position, context) {
+        if (!position || !context) return false;
+        var rect = panelRectAt(position);
+        var bounds = context.bounds;
+        if (rect.left < bounds.left || rect.top < bounds.top || rect.right > bounds.right || rect.bottom > bounds.bottom) return false;
+        return context.hardBlockers.every(function (blocker) { return !rectsIntersect(rect, blocker, placementGap); });
+      }
+      function cornerCandidates(context) {
+        var bounds = context.bounds;
+        var left = bounds.left;
+        var right = Math.max(left, bounds.right - panel.offsetWidth);
+        var top = bounds.top;
+        var bottom = Math.max(top, bounds.bottom - panel.offsetHeight);
+        var preferredLeft = context.preferredSide === 'left' ? left : right;
+        var alternateLeft = context.preferredSide === 'left' ? right : left;
+        return [
+          { left: preferredLeft, top: bottom },
+          { left: alternateLeft, top: bottom },
+          { left: preferredLeft, top: top },
+          { left: alternateLeft, top: top }
+        ].filter(function (candidate, index, all) {
+          return all.findIndex(function (other) { return other.left === candidate.left && other.top === candidate.top; }) === index;
+        });
+      }
+      function nearbyCandidates(context, reference) {
+        var bounds = context.bounds;
+        var maximumLeft = bounds.right - panel.offsetWidth;
+        var maximumTop = bounds.bottom - panel.offsetHeight;
+        var requested = reference ? {
+          left: clamp(reference.left, bounds.left, maximumLeft),
+          top: clamp(reference.top, bounds.top, maximumTop)
+        } : null;
+        var horizontal = [bounds.left, maximumLeft];
+        var vertical = [bounds.top, maximumTop];
+        if (requested) {
+          horizontal.push(requested.left);
+          vertical.push(requested.top);
+        }
+        context.hardBlockers.forEach(function (blocker) {
+          horizontal.push(
+            blocker.left - placementGap - panel.offsetWidth,
+            blocker.right + placementGap
+          );
+          vertical.push(
+            blocker.top - placementGap - panel.offsetHeight,
+            blocker.bottom + placementGap
+          );
+        });
+        horizontal = horizontal.map(function (left) { return clamp(left, bounds.left, maximumLeft); });
+        vertical = vertical.map(function (top) { return clamp(top, bounds.top, maximumTop); });
+        var candidates = [];
+        horizontal.forEach(function (left) {
+          vertical.forEach(function (top) { candidates.push({ left: left, top: top }); });
+        });
+        return candidates.filter(function (candidate, index, all) {
+          return all.findIndex(function (other) { return other.left === candidate.left && other.top === candidate.top; }) === index;
+        });
+      }
+      function placementScore(position, context, reference, softWeight) {
+        var rect = panelRectAt(position);
+        var referenceLeft = reference ? reference.left : (context.preferredSide === 'left' ? context.bounds.left : context.bounds.right - panel.offsetWidth);
+        var referenceTop = reference ? reference.top : context.bounds.bottom - panel.offsetHeight;
+        var distance = Math.pow(position.left - referenceLeft, 2) + Math.pow(position.top - referenceTop, 2);
+        var softOverlap = context.softBlockers.reduce(function (total, blocker) { return total + intersectionArea(rect, blocker); }, 0);
+        return distance + softOverlap * softWeight;
+      }
+      function chooseRadarPlacement(context, reference, options) {
+        options = options || {};
+        var softWeight = Number.isFinite(options.softWeight) ? options.softWeight : 100;
+        var candidates = nearbyCandidates(context, reference).concat(cornerCandidates(context));
+        var valid = candidates.filter(function (candidate) { return positionIsValid(candidate, context); });
+        valid.sort(function (first, second) {
+          return placementScore(first, context, reference, softWeight) - placementScore(second, context, reference, softWeight);
+        });
+        return valid.length ? valid[0] : null;
+      }
+      function applyPlacement(position, remember) {
+        var useLeft = position.left + panel.offsetWidth / 2 <= window.innerWidth / 2;
+        panel.setAttribute('data-docked', 'true');
+        panel.setAttribute('data-dock-side', useLeft ? 'left' : 'right');
+        if (useLeft) {
+          panel.style.setProperty('--archify-radar-left', Math.round(position.left) + 'px');
+          panel.style.removeProperty('--archify-radar-right');
+        } else {
+          panel.style.setProperty('--archify-radar-right', Math.round(window.innerWidth - position.left - panel.offsetWidth) + 'px');
+          panel.style.removeProperty('--archify-radar-left');
+        }
+        panel.style.setProperty('--archify-radar-top', Math.round(position.top) + 'px');
+        if (remember !== false) lastPlacement = { left: position.left, top: position.top };
+      }
+      function resetDockingStyles() {
+        panel.removeAttribute('data-docked');
+        panel.removeAttribute('data-dock-side');
+        panel.removeAttribute('data-panel-dragging');
+        panel.removeAttribute('data-placement-invalid');
+        panel.removeAttribute('data-placement-degraded');
+        panel.removeAttribute('data-placement-unavailable');
+        panel.removeAttribute('data-compact');
+        panel.removeAttribute('title');
+        panel.style.removeProperty('visibility');
+        panel.style.removeProperty('--archify-radar-right');
+        panel.style.removeProperty('--archify-radar-left');
+        panel.style.removeProperty('--archify-radar-top');
+      }
+      function updateDocking() {
+        var options = arguments[0] || {};
+        if (panel.hidden) return false;
+        if (panelDrag) return true;
+        panel.removeAttribute('data-compact');
+        panel.removeAttribute('data-placement-degraded');
+        panel.removeAttribute('data-placement-invalid');
+        panel.removeAttribute('data-placement-unavailable');
+        panel.removeAttribute('title');
+        panel.style.removeProperty('visibility');
+        var context = placementContext();
+        if (!context) {
+          resetDockingStyles();
+          return false;
+        }
+        var reference = manualPosition || lastPlacement;
+        var placementOptions = { softWeight: manualPosition ? 0 : 100 };
+        var placement = manualPosition && positionIsValid(manualPosition, context)
+          ? manualPosition
+          : chooseRadarPlacement(context, reference, placementOptions);
+        var compact = false;
+        if (!placement && options.allowCompact !== false) {
+          compact = true;
+          panel.setAttribute('data-compact', 'true');
+          panel.setAttribute('data-placement-degraded', 'true');
+          panel.setAttribute('title', viewerText('viewer.radar.compacted'));
+          context = placementContext();
+          placement = chooseRadarPlacement(context, reference, placementOptions);
+        }
+        if (!placement) {
+          resetDockingStyles();
+          panel.setAttribute('data-placement-unavailable', 'true');
+          return false;
+        }
+        if (manualPosition && !compact) manualPosition = { left: placement.left, top: placement.top };
+        applyPlacement(placement, true);
+        return true;
+      }
+      function clearSpaceRetry() {
+        if (spaceRetryTimer) window.clearTimeout(spaceRetryTimer);
+        spaceRetryTimer = 0;
+      }
+      function yieldPassport() {
+        if (!passport || passport.hidden || passportYielded) return passportYielded;
+        passportPreviousAriaHidden = passport.getAttribute('aria-hidden');
+        passportYielded = true;
+        passport.setAttribute('data-radar-yielded', 'true');
+        passport.setAttribute('aria-hidden', 'true');
+        return true;
+      }
+      function restorePassport() {
+        if (!passport || !passportYielded) return;
+        passportYielded = false;
+        passport.removeAttribute('data-radar-yielded');
+        if (passportPreviousAriaHidden === null) passport.removeAttribute('aria-hidden');
+        else passport.setAttribute('aria-hidden', passportPreviousAriaHidden);
+        passportPreviousAriaHidden = null;
+      }
+      function reflectVisible() {
+        panel.hidden = false;
+        panel.removeAttribute('data-placement-unavailable');
+        trigger.setAttribute('aria-expanded', 'true');
+        trigger.removeAttribute('data-radar-space-limited');
+        trigger.setAttribute('aria-label', viewerText('viewer.radar.close'));
+        trigger.title = viewerText('viewer.nav.radar.title');
+        feedback.hidden = true;
+      }
+      function scheduleSpaceRetry() {
+        if (!requestedOpen || spaceRetryTimer || spaceRetryCount >= 4) return;
+        spaceRetryCount += 1;
+        spaceRetryTimer = window.setTimeout(function () {
+          spaceRetryTimer = 0;
+          attemptRequestedOpen();
+        }, 60);
+      }
+      function reflectUnavailable() {
+        restorePassport();
+        panel.hidden = true;
+        panel.setAttribute('data-placement-unavailable', 'true');
+        trigger.setAttribute('aria-expanded', 'false');
+        trigger.setAttribute('aria-label', viewerText('viewer.radar.cancelWaiting'));
+        trigger.setAttribute('data-radar-space-limited', 'true');
+        trigger.title = viewerText('viewer.radar.needsSpace');
+        feedback.hidden = false;
+        scheduleSpaceRetry();
+      }
+      function attemptRequestedOpen(options) {
+        options = options || {};
+        if (!requestedOpen) return false;
+        panel.hidden = false;
+        if (!updateDocking(options)) {
+          reflectUnavailable();
+          return false;
+        }
+        clearSpaceRetry();
+        spaceRetryCount = 0;
+        reflectVisible();
+        sync();
+        if (options.focus === true && !panel.hasAttribute('data-compact')) surface.focus();
+        return true;
+      }
+      function expandCompactRadar() {
+        if (!requestedOpen || panel.hidden || !panel.hasAttribute('data-compact')) return false;
+        yieldPassport();
+        if (!updateDocking({ allowCompact: false })) {
+          restorePassport();
+          if (!updateDocking()) {
+            reflectUnavailable();
+            return false;
+          }
+        }
+        reflectVisible();
+        sync();
+        if (!panel.hasAttribute('data-compact')) surface.focus();
+        return !panel.hasAttribute('data-compact');
+      }
+      function syncNow() {
+        syncFrame = 0;
+        if (panel.hidden || !Archify.view || typeof Archify.view.logicalViewport !== 'function') return;
+        if (!updateDocking()) {
+          reflectUnavailable();
+          return;
+        }
+        if (passportYielded && panel.hasAttribute('data-compact')) {
+          restorePassport();
+          if (!updateDocking()) {
+            reflectUnavailable();
+            return;
+          }
+        }
+        reflectVisible();
+        var visible = Archify.view.logicalViewport();
+        if (!visible) return;
+        viewport.setAttribute('x', String(visible.x));
+        viewport.setAttribute('y', String(visible.y));
+        viewport.setAttribute('width', String(visible.width));
+        viewport.setAttribute('height', String(visible.height));
+        var full = visible.width >= viewBox.width * 0.98 && visible.height >= viewBox.height * 0.98;
+        var mobileWide = window.innerWidth <= 720 && container.hasAttribute('data-wide-diagram');
+        var viewportCopy = full
+          ? viewerText('viewer.radar.viewport.full')
+          : (mobileWide
+            ? viewerText('viewer.radar.viewport.width', { percent: Math.round(visible.width / viewBox.width * 100) })
+            : viewerText('viewer.radar.viewport.scale', { percent: Math.round(visible.scale * 100) }));
+        status.textContent = viewerText('viewer.radar.status', { count: nodes.length, viewport: viewportCopy });
+        nodes.forEach(function (item) {
+          var active = item.node.hasAttribute('data-focus-selected') ||
+            item.node.getAttribute('data-story-beat-state') === 'active';
+          if (active) item.rect.setAttribute('data-radar-active', 'true');
+          else item.rect.removeAttribute('data-radar-active');
+        });
+      }
+      function sync() {
+        if (requestedOpen && panel.hidden) {
+          attemptRequestedOpen();
+          return;
+        }
+        if (syncFrame) return;
+        syncFrame = requestAnimationFrame(syncNow);
+      }
+      function setOpen(next, options) {
+        options = options || {};
+        next = Boolean(next);
+        if (next && Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (next && Archify.semanticLens && Archify.semanticLens.isOpen()) {
+          Archify.semanticLens.close({ restoreFocus: false });
+        }
+        requestedOpen = next;
+        if (next) {
+          clearSpaceRetry();
+          spaceRetryCount = 0;
+          build();
+          attemptRequestedOpen(options);
+        } else {
+          clearSpaceRetry();
+          spaceRetryCount = 0;
+          viewportDrag = null;
+          panelDrag = null;
+          container.classList.remove('is-panning');
+          panel.hidden = true;
+          resetDockingStyles();
+          restorePassport();
+          feedback.hidden = true;
+          trigger.setAttribute('aria-expanded', 'false');
+          trigger.removeAttribute('data-radar-space-limited');
+          trigger.setAttribute('aria-label', viewerText('viewer.nav.radar'));
+          trigger.title = viewerText('viewer.nav.radar.title');
+          if (options.restoreFocus === true) trigger.focus();
+        }
+        return next;
+      }
+      function toggle() { return setOpen(!requestedOpen, { focus: false }); }
+      function close(options) { return setOpen(false, options); }
+      function bringNodeIntoWindow(node) {
+        var delay = window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches ? 0 : 540;
+        window.setTimeout(function () {
+          var rect = node.getBoundingClientRect();
+          var safeTop = 64;
+          var safeBottom = window.innerHeight - 64;
+          if (rect.top >= safeTop && rect.bottom <= safeBottom) return;
+          var top = Math.max(0, window.scrollY + rect.top + rect.height / 2 - window.innerHeight / 2);
+          try { window.scrollTo({ top: top, behavior: delay ? 'smooth' : 'auto' }); }
+          catch (_) { window.scrollTo(0, top); }
+        }, delay);
+      }
+      function focusNode(id) {
+        var main = diagram.querySelector('[data-node-id="' + id + '"]');
+        if (!main) return false;
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        if (Archify.focus && typeof Archify.focus.set === 'function') {
+          Archify.focus.set(id, { toggle: false });
+        }
+        if (Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal([id], { includeNeighbors: true, reason: 'radar' });
+        }
+        bringNodeIntoWindow(main);
+        try { main.focus({ preventScroll: true }); } catch (_) { try { main.focus(); } catch (_) {} }
+        sync();
+        return true;
+      }
+      function diagramPoint(event) {
+        var matrix = mapSvg.getScreenCTM();
+        if (!matrix) return null;
+        var point = mapSvg.createSVGPoint();
+        point.x = event.clientX;
+        point.y = event.clientY;
+        return point.matrixTransform(matrix.inverse());
+      }
+      function navigate(event) {
+        var point = diagramPoint(event);
+        if (!point || !Archify.view || typeof Archify.view.centerAt !== 'function') return;
+        Archify.view.centerAt(point.x, point.y, { minimumScale: 1.5, instant: true });
+        sync();
+      }
+      function endViewportDrag(event) {
+        if (!viewportDrag) return;
+        viewportDrag = null;
+        panel.removeAttribute('data-dragging');
+        container.classList.remove('is-panning');
+        try { surface.releasePointerCapture(event.pointerId); } catch (_) {}
+      }
+      function beginPanelDrag(event) {
+        if (event.button !== 0 || event.target.closest('button, a, input, [role="button"]')) return;
+        var context = placementContext();
+        if (!context) return;
+        var rect = panel.getBoundingClientRect();
+        event.preventDefault();
+        event.stopPropagation();
+        panelDrag = {
+          pointerId: event.pointerId,
+          originX: event.clientX,
+          originY: event.clientY,
+          start: { left: rect.left, top: rect.top },
+          current: { left: rect.left, top: rect.top },
+          previousManual: manualPosition ? { left: manualPosition.left, top: manualPosition.top } : null
+        };
+        panel.setAttribute('data-panel-dragging', 'true');
+        try { panelHead.setPointerCapture(event.pointerId); } catch (_) {}
+      }
+      function movePanelDrag(event) {
+        if (!panelDrag || panelDrag.pointerId !== event.pointerId) return;
+        var context = placementContext();
+        if (!context) return;
+        event.preventDefault();
+        event.stopPropagation();
+        var bounds = context.bounds;
+        var position = {
+          left: clamp(panelDrag.start.left + event.clientX - panelDrag.originX, bounds.left, bounds.right - panel.offsetWidth),
+          top: clamp(panelDrag.start.top + event.clientY - panelDrag.originY, bounds.top, bounds.bottom - panel.offsetHeight)
+        };
+        panelDrag.current = position;
+        if (positionIsValid(position, context)) panel.removeAttribute('data-placement-invalid');
+        else panel.setAttribute('data-placement-invalid', 'true');
+        applyPlacement(position, false);
+      }
+      function finishPanelDrag(event, cancel) {
+        if (!panelDrag || panelDrag.pointerId !== event.pointerId) return;
+        event.preventDefault();
+        event.stopPropagation();
+        var activeDrag = panelDrag;
+        panelDrag = null;
+        panel.removeAttribute('data-panel-dragging');
+        panel.removeAttribute('data-placement-invalid');
+        try { panelHead.releasePointerCapture(event.pointerId); } catch (_) {}
+        var context = placementContext();
+        if (!context) return;
+        if (cancel) {
+          manualPosition = activeDrag.previousManual;
+          lastPlacement = { left: activeDrag.start.left, top: activeDrag.start.top };
+          updateDocking();
+          return;
+        }
+        var requested = activeDrag.current;
+        manualPosition = { left: requested.left, top: requested.top };
+        updateDocking();
+      }
+
+      trigger.addEventListener('click', toggle);
+      closeBtn.addEventListener('click', function () { close({ restoreFocus: true }); });
+      expandBtn.addEventListener('click', expandCompactRadar);
+      panelHead.addEventListener('pointerdown', beginPanelDrag);
+      panelHead.addEventListener('pointermove', movePanelDrag);
+      panelHead.addEventListener('pointerup', function (event) { finishPanelDrag(event, false); });
+      panelHead.addEventListener('pointercancel', function (event) { finishPanelDrag(event, true); });
+      surface.addEventListener('pointerdown', function (event) {
+        if (event.button !== 0 || event.target.closest('[data-radar-node-id]')) return;
+        event.preventDefault();
+        viewportDrag = { pointerId: event.pointerId };
+        panel.setAttribute('data-dragging', 'true');
+        container.classList.add('is-panning');
+        try { surface.setPointerCapture(event.pointerId); } catch (_) {}
+        navigate(event);
+      });
+      surface.addEventListener('pointermove', function (event) {
+        if (!viewportDrag || viewportDrag.pointerId !== event.pointerId) return;
+        navigate(event);
+      });
+      surface.addEventListener('pointerup', endViewportDrag);
+      surface.addEventListener('pointercancel', endViewportDrag);
+      surface.addEventListener('click', function (event) {
+        var node = event.target.closest('[data-radar-node-id]');
+        if (node) focusNode(node.getAttribute('data-radar-node-id'));
+      });
+      surface.addEventListener('keydown', function (event) {
+        if (event.key === 'Escape') {
+          event.preventDefault();
+          event.stopPropagation();
+          close({ restoreFocus: true });
+          return;
+        }
+        var node = event.target.closest('[data-radar-node-id]');
+        if (node && (event.key === 'Enter' || event.key === ' ')) {
+          event.preventDefault();
+          focusNode(node.getAttribute('data-radar-node-id'));
+          return;
+        }
+        if (event.key !== 'ArrowLeft' && event.key !== 'ArrowRight' && event.key !== 'ArrowUp' && event.key !== 'ArrowDown') return;
+        var visible = Archify.view && Archify.view.logicalViewport ? Archify.view.logicalViewport() : null;
+        if (!visible) return;
+        event.preventDefault();
+        var x = visible.x + visible.width / 2;
+        var y = visible.y + visible.height / 2;
+        var stepX = Math.max(12, visible.width * 0.24);
+        var stepY = Math.max(12, visible.height * 0.24);
+        if (event.key === 'ArrowLeft') x -= stepX;
+        else if (event.key === 'ArrowRight') x += stepX;
+        else if (event.key === 'ArrowUp') y -= stepY;
+        else y += stepY;
+        Archify.view.centerAt(x, y, { minimumScale: 1.5, instant: true });
+        sync();
+      });
+      document.addEventListener('keydown', function (event) {
+        if (!panelDrag || event.key !== 'Escape') return;
+        finishPanelDrag({
+          pointerId: panelDrag.pointerId,
+          preventDefault: function () { event.preventDefault(); },
+          stopPropagation: function () { event.stopPropagation(); }
+        }, true);
+      }, true);
+      function reflow() {
+        if (!requestedOpen) return;
+        clearSpaceRetry();
+        spaceRetryCount = 0;
+        sync();
+      }
+      window.addEventListener('resize', reflow);
+      window.addEventListener('scroll', reflow, { passive: true });
+      if (typeof ResizeObserver === 'function') {
+        var radarResizeObserver = new ResizeObserver(function (entries) {
+          if (!requestedOpen) return;
+          if (panel.hidden && entries.every(function (entry) { return entry.target === panel; })) return;
+          reflow();
+        });
+        [container, navigation, document.getElementById('focus-chip'), panel].filter(Boolean).forEach(function (element) {
+          radarResizeObserver.observe(element);
+        });
+      }
+      requestAnimationFrame(build);
+
+      return {
+        open: function () { return setOpen(true); },
+        close: close,
+        toggle: toggle,
+        sync: sync,
+        focus: focusNode,
+        isOpen: function () { return requestedOpen; },
+        count: function () { return nodes.length; }
+      };
+    })();
+
+    /* ============================================================
+       Presentation Stage — a shareable, viewport-filling live view.
+       It changes only HTML layout and URL state; SVG semantics and export
+       serialization remain untouched. Escape first clears an active guided
+       view/focus, then exits the stage.
+       ============================================================ */
+    Archify.presentation = (function () {
+      var html = document.documentElement;
+      var btn = document.getElementById('btn-present');
+      var label = document.getElementById('present-label');
+      var previousScrollY = 0;
+
+      function active() { return html.getAttribute('data-present') === 'true'; }
+
+      function updateUrl(next) {
+        try {
+          var url = new URL(window.location.href);
+          if (next) url.searchParams.set('present', '1');
+          else url.searchParams.delete('present');
+          history.replaceState(null, '', url.pathname + url.search + url.hash);
+        } catch (_) {}
+      }
+
+      function render(next) {
+        btn.setAttribute('aria-pressed', next ? 'true' : 'false');
+        btn.setAttribute('aria-label', viewerText(next ? 'viewer.present.exit' : 'viewer.present.enter'));
+        btn.title = viewerText(next ? 'viewer.present.exit.title' : 'viewer.present.enter.title');
+        label.textContent = viewerText(next ? 'viewer.present.exit.label' : 'viewer.present.present');
+      }
+
+      function setActive(next, options) {
+        options = options || {};
+        next = Boolean(next);
+        if (next === active()) {
+          render(next);
+          return next;
+        }
+        if (next) {
+          if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+          previousScrollY = window.scrollY || 0;
+          html.setAttribute('data-present', 'true');
+          try { window.scrollTo(0, 0); } catch (_) {}
+        } else {
+          html.removeAttribute('data-present');
+        }
+        render(next);
+        if (options.updateUrl !== false) updateUrl(next);
+        requestAnimationFrame(function () {
+          if (Archify.view && typeof Archify.view.reset === 'function') {
+            Archify.view.reset({ automatic: true });
+            requestAnimationFrame(function () {
+              if (Archify.view && typeof Archify.view.sync === 'function') Archify.view.sync();
+            });
+          }
+          if (!next && previousScrollY) {
+            try { window.scrollTo(0, previousScrollY); } catch (_) {}
+          }
+        });
+        return next;
+      }
+
+      function toggle() { return setActive(!active()); }
+
+      render(active());
+      btn.addEventListener('click', toggle);
+
+      return {
+        enter: function () { return setActive(true); },
+        exit: function () { return setActive(false); },
+        toggle: toggle,
+        active: active
+      };
+    })();
+
+    /* ============================================================
+       Node Finder — stable-ID search over the existing semantic SVG.
+       Search never changes the IR or SVG geometry: selecting a result resets
+       the viewport, releases a guided view, and delegates to semantic focus.
+       ============================================================ */
+    Archify.finder = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector('svg');
+      var trigger = document.getElementById('btn-node-finder');
+      var panel = document.getElementById('node-finder');
+      var heading = document.getElementById('node-finder-title');
+      var closeBtn = document.getElementById('node-finder-close');
+      var input = document.getElementById('node-finder-input');
+      var results = document.getElementById('node-finder-results');
+      var empty = document.getElementById('node-finder-empty');
+      var status = document.getElementById('node-finder-status');
+      var visibleItems = [];
+
+      function defaultContext() {
+        return {
+          kind: 'focus',
+          title: viewerText('viewer.finder.title'),
+          placeholder: viewerText('viewer.finder.placeholder'),
+          empty: viewerText('viewer.finder.empty'),
+          resultsLabel: viewerText('viewer.finder.results'),
+          availableNoun: viewerText('viewer.finder.noun.nodes'),
+          allowedIds: null,
+          badges: null
+        };
+      }
+
+      var context = defaultContext();
+
+      function semanticType(node) {
+        var authored = node.getAttribute('data-node-kind');
+        if (authored) return authored;
+        var types = ['frontend', 'backend', 'database', 'cloud', 'security', 'messagebus', 'external'];
+        return types.find(function (type) { return node.querySelector('.c-' + type); }) || 'node';
+      }
+
+      function connectionsFor(id) {
+        var count = 0;
+        var seen = {};
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'), function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          var key = from + '\u0000' + to;
+          if ((from === id || to === id) && !seen[key]) {
+            seen[key] = true;
+            count += 1;
+          }
+        });
+        return count;
+      }
+
+      var items = Array.prototype.map.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+        var id = node.getAttribute('data-node-id');
+        var label = node.getAttribute('data-node-label') || (node.getAttribute('aria-label') || id).replace(/^Focus\s+/, '');
+        var text = (node.textContent || '').replace(/\s+/g, ' ').trim();
+        var sublabel = node.getAttribute('data-node-sublabel') || '';
+        var context = node.getAttribute('data-node-context') || '';
+        var tag = node.getAttribute('data-node-tag') || '';
+        var brand = node.getAttribute('data-node-brand') || '';
+        var type = semanticType(node);
+        var sources = Archify.sourceEvidence.node(id);
+        var sourceSearch = sources.map(function (source) {
+          return [source.path, source.label, source.line, source.endLine].filter(Boolean).join(' ');
+        }).join(' ');
+        return {
+          id: id,
+          label: label,
+          type: type,
+          sublabel: sublabel,
+          context: context,
+          tag: tag,
+          brand: brand,
+          sources: sources,
+          links: connectionsFor(id),
+          search: (id + ' ' + label + ' ' + type + ' ' + sublabel + ' ' + context + ' ' + tag + ' ' + sourceSearch + ' ' + text).toLowerCase() + ' ' + brand.toLowerCase(),
+          node: node
+        };
+      });
+
+      function resultButtons() {
+        return Array.prototype.slice.call(results.querySelectorAll('.node-finder-result'));
+      }
+
+      function resolveContext(options) {
+        var requested = options && options.context ? options.context : null;
+        if (!requested && Archify.routeProbe && typeof Archify.routeProbe.finderContext === 'function') {
+          requested = Archify.routeProbe.finderContext();
+        }
+        if (!requested) return defaultContext();
+        var resolved = defaultContext();
+        Object.keys(requested).forEach(function (key) { resolved[key] = requested[key]; });
+        return resolved;
+      }
+
+      function availableItems() {
+        if (!context.allowedIds) return items.slice();
+        return items.filter(function (item) { return context.allowedIds.indexOf(item.id) !== -1; });
+      }
+
+      function applyContext() {
+        panel.setAttribute('data-context', context.kind);
+        heading.textContent = context.title;
+        input.placeholder = context.placeholder;
+        empty.textContent = context.empty;
+        results.setAttribute('aria-label', context.resultsLabel);
+      }
+
+      function select(id) {
+        var item = items.find(function (candidate) { return candidate.id === id; });
+        if (!item) return false;
+        var routeSelection = context.kind === 'route-source' || context.kind === 'route-target';
+        if (routeSelection) {
+          if (!Archify.routeProbe || typeof Archify.routeProbe.choose !== 'function' || !Archify.routeProbe.choose(id)) return false;
+          if (Archify.routeProbe.active() === 'target' && Archify.view && typeof Archify.view.reveal === 'function') {
+            Archify.view.reveal([id], { includeNeighbors: true, reason: 'route-pick' });
+          }
+          close({ restoreFocus: false });
+          try { item.node.focus({ preventScroll: true }); } catch (_) { try { item.node.focus(); } catch (_) {} }
+          return true;
+        }
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        if (Archify.view && typeof Archify.view.reset === 'function') Archify.view.reset({ automatic: true });
+        Archify.focus.set(id, { toggle: false });
+        if (Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal([id], { includeNeighbors: true, reason: 'finder' });
+        }
+        close({ restoreFocus: false });
+        try { item.node.focus({ preventScroll: true }); } catch (_) { try { item.node.focus(); } catch (_) {} }
+        return true;
+      }
+
+      function render(query) {
+        query = (query || '').trim().toLowerCase();
+        var available = availableItems();
+        visibleItems = available.filter(function (item) { return !query || item.search.indexOf(query) !== -1; });
+        results.textContent = '';
+        visibleItems.forEach(function (item) {
+          var button = document.createElement('button');
+          button.type = 'button';
+          button.className = 'node-finder-result';
+          button.setAttribute('data-node-id', item.id);
+          var badge = context.badges && context.badges[item.id]
+            ? context.badges[item.id]
+            : context.kind === 'focus'
+              ? viewerCount('viewer.finder.link', item.links)
+              : String(item.links);
+          var action = context.kind === 'route-source'
+            ? viewerText('viewer.finder.result.routeStart', { label: item.label })
+            : context.kind === 'route-target'
+              ? viewerText('viewer.finder.result.routeTarget', { label: item.label, links: badge })
+              : viewerCount('viewer.finder.result.focus', item.links, { label: item.label });
+          button.setAttribute('aria-label', action);
+
+          var name = document.createElement('strong');
+          name.textContent = item.label;
+          var links = document.createElement('em');
+          links.textContent = badge;
+          links.title = context.kind === 'focus' ? badge : action;
+          var meta = document.createElement('small');
+          meta.textContent = [viewerKindLabel(item.type), item.id, item.sublabel, item.tag].filter(Boolean).join(' \u00b7 ');
+          meta.title = [viewerKindLabel(item.type), item.id, item.context, item.sublabel, item.tag].filter(Boolean).join(' \u00b7 ');
+          button.appendChild(name);
+          button.appendChild(links);
+          button.appendChild(meta);
+          button.addEventListener('click', function () { select(item.id); });
+          results.appendChild(button);
+        });
+        empty.hidden = visibleItems.length !== 0;
+        status.textContent = query
+          ? viewerText('viewer.finder.status.filtered', {
+              visible: visibleItems.length,
+              available: available.length,
+              noun: context.availableNoun
+            })
+          : viewerText('viewer.finder.status.all', { available: available.length, noun: context.availableNoun });
+      }
+
+      function open(options) {
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (Archify.exportMenu && Archify.exportMenu.isOpen()) Archify.exportMenu.close(false);
+        if (Archify.semanticLens && Archify.semanticLens.isOpen()) Archify.semanticLens.close({ restoreFocus: false });
+        context = resolveContext(options || {});
+        applyContext();
+        panel.hidden = false;
+        trigger.setAttribute('aria-expanded', 'true');
+        if (context.kind.indexOf('route-') === 0 && Archify.routeProbe && typeof Archify.routeProbe.finderOpening === 'function') {
+          Archify.routeProbe.finderOpening();
+        }
+        input.value = '';
+        render('');
+        requestAnimationFrame(function () { input.focus(); });
+        return true;
+      }
+
+      function close(options) {
+        options = options || {};
+        var routeContext = context.kind.indexOf('route-') === 0;
+        panel.hidden = true;
+        trigger.setAttribute('aria-expanded', 'false');
+        input.value = '';
+        if (routeContext && Archify.routeProbe && typeof Archify.routeProbe.finderClosed === 'function') {
+          Archify.routeProbe.finderClosed({ restoreFocus: options.restoreFocus !== false });
+        } else if (options.restoreFocus !== false) {
+          trigger.focus();
+        }
+      }
+
+      function toggle() { return panel.hidden ? open() : (close(), false); }
+
+      trigger.addEventListener('click', toggle);
+      closeBtn.addEventListener('click', function () { close(); });
+      input.addEventListener('input', function () { render(input.value); });
+      input.addEventListener('keydown', function (event) {
+        var buttons = resultButtons();
+        if (event.key === 'ArrowDown' && buttons.length) {
+          event.preventDefault();
+          buttons[0].focus();
+        } else if (event.key === 'Enter' && visibleItems.length) {
+          event.preventDefault();
+          select(visibleItems[0].id);
+        }
+      });
+      results.addEventListener('keydown', function (event) {
+        var buttons = resultButtons();
+        var index = buttons.indexOf(document.activeElement);
+        if (index < 0 || !buttons.length) return;
+        var next = null;
+        if (event.key === 'ArrowDown') next = (index + 1) % buttons.length;
+        else if (event.key === 'ArrowUp') next = (index - 1 + buttons.length) % buttons.length;
+        else if (event.key === 'Home') next = 0;
+        else if (event.key === 'End') next = buttons.length - 1;
+        if (next !== null) {
+          event.preventDefault();
+          buttons[next].focus();
+        }
+      });
+      panel.addEventListener('keydown', function (event) {
+        if (event.key !== 'Escape') return;
+        event.preventDefault();
+        event.stopPropagation();
+        close();
+      });
+      document.addEventListener('click', function (event) {
+        if (!panel.hidden && !panel.contains(event.target) && !event.target.closest('[data-node-finder-trigger]')) close({ restoreFocus: false });
+      });
+
+      render('');
+      return {
+        open: open,
+        close: close,
+        toggle: toggle,
+        select: select,
+        isOpen: function () { return !panel.hidden; },
+        context: function () { return context.kind; },
+        count: items.length
+      };
+    })();
+
+    /* ============================================================
+       Route Probe — shortest directed path over compiled semantics.
+       The graph is read from renderer-owned stable IDs and relationship
+       endpoints. BFS order follows authored DOM edge order, so equal-length
+       choices are deterministic without adding weights or a graph runtime.
+       ============================================================ */
+    Archify.routeProbe = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector(':scope > svg');
+      var trigger = document.getElementById('btn-route-probe');
+      var panel = document.getElementById('route-probe');
+      var title = document.getElementById('route-probe-title');
+      var path = document.getElementById('route-probe-path');
+      var status = document.getElementById('route-probe-status');
+      var findBtn = document.getElementById('route-probe-find');
+      var copyBtn = document.getElementById('route-probe-copy');
+      var clearBtn = document.getElementById('route-probe-clear');
+      var journeyControls = document.getElementById('route-journey-controls');
+      var journeyPrevBtn = document.getElementById('route-journey-prev');
+      var journeyPlayBtn = document.getElementById('route-journey-play');
+      var journeyPlayIcon = document.getElementById('route-journey-play-icon');
+      var journeyPlayLabel = document.getElementById('route-journey-play-label');
+      var journeyNextBtn = document.getElementById('route-journey-next');
+      var journeyOverviewBtn = document.getElementById('route-journey-overview');
+      var namespace = 'http://www.w3.org/2000/svg';
+      var mode = 'idle';
+      var startId = null;
+      var endId = null;
+      var activeNodeIds = [];
+      var activeEdges = [];
+      var journeyIndex = -1;
+      var journeyPlaying = false;
+      var journeyComplete = false;
+      var journeyGeneration = 0;
+      var journeyTimer = null;
+      var journeyStartedAt = 0;
+      var journeyElapsedMs = 0;
+      var journeyOwnerToken = 0;
+      var JOURNEY_DWELL_MS = 1100;
+
+      function nodes() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-node-id]'));
+      }
+      function edges() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'));
+      }
+      function nodesById() {
+        var out = Object.create(null);
+        nodes().forEach(function (node) { out[node.getAttribute('data-node-id')] = node; });
+        return out;
+      }
+      function nodeLabel(node, fallback) {
+        return node.getAttribute('data-node-label') ||
+          (node.getAttribute('aria-label') || fallback).replace(/^Focus\s+/, '').split(',')[0];
+      }
+      function exportSnapshot() {
+        if (mode !== 'result' || activeNodeIds.length < 2 || activeEdges.length !== activeNodeIds.length - 1) return null;
+        var allNodes = nodes();
+        var byId = nodesById();
+        var seenNodeIds = Object.create(null);
+        var seenEdgeKeys = Object.create(null);
+        if (startId !== activeNodeIds[0] || endId !== activeNodeIds[activeNodeIds.length - 1] ||
+            activeNodeIds.some(function (id) {
+              if (seenNodeIds[id] || allNodes.filter(function (node) {
+                return node.getAttribute('data-node-id') === id;
+              }).length !== 1) return true;
+              seenNodeIds[id] = true;
+              return !byId[id];
+            }) ||
+            activeEdges.some(function (edge, index) {
+              if (!edge || !svg.contains(edge)) return true;
+              var edgeKey = edge.getAttribute('data-edge-key');
+              var edgeId = edge.getAttribute('data-edge-id') || '';
+              if (!edgeKey || seenEdgeKeys[edgeKey]) return true;
+              seenEdgeKeys[edgeKey] = true;
+              var fragments = Array.prototype.slice.call(svg.querySelectorAll('[data-edge-key]')).filter(function (candidate) {
+                return candidate.getAttribute('data-edge-key') === edgeKey;
+              });
+              var drawableFragments = fragments.filter(hasDrawableGeometry);
+              return !fragments.length || !fragments.every(function (fragment) {
+                return fragment.getAttribute('data-edge-from') === activeNodeIds[index] &&
+                  fragment.getAttribute('data-edge-to') === activeNodeIds[index + 1] &&
+                  (fragment.getAttribute('data-edge-id') || '') === edgeId;
+              }) || drawableFragments.length !== 1 || drawableFragments[0] !== edge ||
+                edge.getAttribute('data-edge-from') !== activeNodeIds[index] ||
+                edge.getAttribute('data-edge-to') !== activeNodeIds[index + 1];
+            })) return null;
+        return {
+          source: { id: startId, label: nodeLabel(byId[startId], startId) },
+          target: { id: endId, label: nodeLabel(byId[endId], endId) },
+          nodeIds: activeNodeIds.slice(),
+          hops: activeEdges.length,
+          edges: activeEdges.map(function (edge) {
+            return {
+              key: edge.getAttribute('data-edge-key'),
+              id: edge.getAttribute('data-edge-id') || '',
+              from: edge.getAttribute('data-edge-from'),
+              to: edge.getAttribute('data-edge-to'),
+              label: edge.getAttribute('data-edge-label') || ''
+            };
+          })
+        };
+      }
+      function edgeShapes(edge) {
+        if (/^(path|line|polyline)$/i.test(edge.tagName)) return [edge];
+        return Array.prototype.slice.call(edge.querySelectorAll('path, line, polyline'));
+      }
+      function removeOverlay() {
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-route-probe-overlay]'), function (overlay) {
+          overlay.remove();
+        });
+      }
+      function removeJourneyPulse(options) {
+        options = options || {};
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-route-journey-overlay]'), function (overlay) {
+          overlay.remove();
+        });
+        if (journeyOwnerToken && options.release !== false && Archify.motionGovernor) {
+          var token = journeyOwnerToken;
+          journeyOwnerToken = 0;
+          Archify.motionGovernor.release(token);
+        }
+      }
+      function stopJourneyTimer(options) {
+        options = options || {};
+        journeyGeneration += 1;
+        if (journeyTimer) {
+          if (options.preserveElapsed === true && journeyStartedAt) {
+            journeyElapsedMs = Math.min(JOURNEY_DWELL_MS, journeyElapsedMs + Math.max(0, Date.now() - journeyStartedAt));
+          }
+          window.clearTimeout(journeyTimer);
+        }
+        journeyTimer = null;
+        journeyStartedAt = 0;
+        if (options.preserveElapsed !== true) journeyElapsedMs = 0;
+      }
+      function clearJourneyPresentation(options) {
+        options = options || {};
+        removeJourneyPulse();
+        svg.removeAttribute('data-route-journey');
+        panel.removeAttribute('data-route-journey');
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-route-journey-state');
+          node.removeAttribute('data-route-journey-current');
+        });
+        edges().forEach(function (edge) {
+          edge.removeAttribute('data-route-journey-state');
+          edge.removeAttribute('data-route-journey-current');
+        });
+        Array.prototype.forEach.call(path.querySelectorAll('[data-route-journey-index]'), function (button, index) {
+          button.removeAttribute('data-route-journey-state');
+          button.removeAttribute('aria-current');
+          button.setAttribute('tabindex', index === 0 ? '0' : '-1');
+        });
+        if (options.keepControls !== true) journeyControls.hidden = true;
+        journeyControls.setAttribute('data-playing', 'false');
+      }
+      function resetJourneyState() {
+        stopJourneyTimer();
+        journeyPlaying = false;
+        journeyComplete = false;
+        journeyIndex = -1;
+        clearJourneyPresentation();
+      }
+      function cleanSvgState() {
+        resetJourneyState();
+        svg.removeAttribute('data-route-picking');
+        svg.removeAttribute('data-route-active');
+        removeOverlay();
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-route-match');
+          node.removeAttribute('data-route-start');
+          node.removeAttribute('data-route-end');
+          node.removeAttribute('data-route-step');
+          node.removeAttribute('data-route-candidate');
+          node.style.removeProperty('--route-step');
+        });
+        edges().forEach(function (edge) {
+          edge.removeAttribute('data-route-match');
+          edge.removeAttribute('data-route-step');
+          edge.style.removeProperty('--route-step');
+        });
+        panel.removeAttribute('data-route-dock');
+      }
+      function replaceRouteHash(value) {
+        try {
+          history.replaceState(null, '', location.pathname + location.search + (value ? '#route=' + value : ''));
+        } catch (_) {}
+      }
+      function renderPlaceholder(copy) {
+        path.textContent = '';
+        var placeholder = document.createElement('span');
+        placeholder.className = 'route-probe-placeholder';
+        placeholder.textContent = copy;
+        path.appendChild(placeholder);
+      }
+      function renderPath(ids, options) {
+        options = options || {};
+        var byId = nodesById();
+        path.textContent = '';
+        ids.forEach(function (id, index) {
+          if (index) {
+            var arrow = document.createElement('span');
+            arrow.className = 'route-probe-arrow';
+            arrow.setAttribute('aria-hidden', 'true');
+            arrow.textContent = '\u2192';
+            path.appendChild(arrow);
+          }
+          var item = document.createElement(options.interactive === true ? 'button' : 'span');
+          if (options.interactive === true) {
+            item.type = 'button';
+            item.setAttribute('data-route-journey-index', String(index));
+            item.setAttribute('data-route-node-id', id);
+            item.setAttribute('tabindex', index === 0 ? '0' : '-1');
+            item.setAttribute('aria-label', viewerText('viewer.route.position', {
+              index: index + 1,
+              total: ids.length,
+              label: nodeLabel(byId[id], id)
+            }));
+          }
+          item.className = 'route-probe-node';
+          item.textContent = nodeLabel(byId[id], id);
+          item.title = nodeLabel(byId[id], id) + ' · ' + id;
+          if (index === 0) item.setAttribute('data-endpoint', 'start');
+          if (index === ids.length - 1 && ids.length > 1) item.setAttribute('data-endpoint', 'end');
+          path.appendChild(item);
+        });
+      }
+      function setTrigger(active) {
+        trigger.setAttribute('aria-pressed', active ? 'true' : 'false');
+        trigger.setAttribute('aria-label', viewerText(active ? 'viewer.route.trigger.clear' : 'viewer.guide.route.aria'));
+      }
+      function clear(options) {
+        options = options || {};
+        var wasActive = mode !== 'idle';
+        if (Archify.finder && Archify.finder.isOpen() && typeof Archify.finder.context === 'function' && Archify.finder.context().indexOf('route-') === 0) {
+          Archify.finder.close({ restoreFocus: false });
+        }
+        mode = 'idle';
+        startId = null;
+        endId = null;
+        activeNodeIds = [];
+        activeEdges = [];
+        cleanSvgState();
+        panel.hidden = true;
+        panel.setAttribute('data-state', 'idle');
+        panel.removeAttribute('data-finder-open');
+        title.textContent = viewerText('viewer.route.start');
+        renderPlaceholder(viewerText('viewer.route.pickTwo'));
+        status.textContent = viewerText('viewer.route.instructions');
+        findBtn.hidden = true;
+        findBtn.textContent = viewerText('viewer.route.start.find');
+        findBtn.setAttribute('aria-label', viewerText('viewer.route.start.find.aria'));
+        copyBtn.hidden = true;
+        copyBtn.textContent = viewerText('viewer.route.copy');
+        if (Archify.exportMenu && typeof Archify.exportMenu.syncRouteShare === 'function') Archify.exportMenu.syncRouteShare();
+        setTrigger(false);
+        if (wasActive && options.preserveView !== true && Archify.view && typeof Archify.view.reset === 'function') {
+          Archify.view.reset({ automatic: true });
+        }
+        if (options.updateUrl !== false) replaceRouteHash('');
+        if (options.restoreFocus === true) trigger.focus();
+      }
+      function outgoingByNode() {
+        var byId = nodesById();
+        var outgoing = {};
+        edges().forEach(function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          if (!byId[from] || !byId[to] || from === to) return;
+          if (!outgoing[from]) outgoing[from] = [];
+          outgoing[from].push({ edge: edge, to: to });
+        });
+        return outgoing;
+      }
+      function reachableFrom(source) {
+        var outgoing = outgoingByNode();
+        var reached = {};
+        var queue = [source];
+        reached[source] = true;
+        for (var cursor = 0; cursor < queue.length; cursor += 1) {
+          var links = outgoing[queue[cursor]] || [];
+          links.forEach(function (link) {
+            if (reached[link.to]) return;
+            reached[link.to] = true;
+            queue.push(link.to);
+          });
+        }
+        return reached;
+      }
+      function hopDistancesFrom(source) {
+        var outgoing = outgoingByNode();
+        var distances = {};
+        var queue = [source];
+        distances[source] = 0;
+        for (var cursor = 0; cursor < queue.length; cursor += 1) {
+          var links = outgoing[queue[cursor]] || [];
+          links.forEach(function (link) {
+            if (Object.prototype.hasOwnProperty.call(distances, link.to)) return;
+            distances[link.to] = distances[queue[cursor]] + 1;
+            queue.push(link.to);
+          });
+        }
+        return distances;
+      }
+      function shortestDirectedPath(source, target) {
+        if (source === target) return null;
+        var outgoing = outgoingByNode();
+        var previous = {};
+        var queue = [source];
+        previous[source] = null;
+        for (var cursor = 0; cursor < queue.length && !Object.prototype.hasOwnProperty.call(previous, target); cursor += 1) {
+          var links = outgoing[queue[cursor]] || [];
+          links.some(function (link) {
+            if (Object.prototype.hasOwnProperty.call(previous, link.to)) return false;
+            previous[link.to] = { from: queue[cursor], edge: link.edge };
+            queue.push(link.to);
+            return link.to === target;
+          });
+        }
+        if (!Object.prototype.hasOwnProperty.call(previous, target)) return null;
+        var nodeIds = [target];
+        var routeEdges = [];
+        var current = target;
+        while (current !== source) {
+          var step = previous[current];
+          if (!step) return null;
+          routeEdges.unshift(step.edge);
+          nodeIds.unshift(step.from);
+          current = step.from;
+        }
+        return { nodes: nodeIds, edges: routeEdges };
+      }
+      function traceGeometry(shape, step) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-labelledby');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.removeAttribute('data-route-match');
+        clone.removeAttribute('data-route-step');
+        clone.setAttribute('class', 'route-probe-flow');
+        clone.setAttribute('pathLength', '1');
+        clone.style.setProperty('--route-step', String(step));
+        return clone;
+      }
+      function renderOverlay(routeEdges) {
+        removeOverlay();
+        if (!routeEdges.length) return;
+        var overlay = document.createElementNS(namespace, 'g');
+        overlay.setAttribute('class', 'route-probe-overlay');
+        overlay.setAttribute('data-route-probe-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        routeEdges.forEach(function (edge, step) {
+          var wrapper = document.createElementNS(namespace, 'g');
+          if (edge.hasAttribute('transform')) wrapper.setAttribute('transform', edge.getAttribute('transform'));
+          edgeShapes(edge).forEach(function (shape) { wrapper.appendChild(traceGeometry(shape, step)); });
+          if (wrapper.childNodes.length) overlay.appendChild(wrapper);
+        });
+        var firstNode = svg.querySelector('[data-node-id]');
+        if (firstNode) svg.insertBefore(overlay, firstNode);
+        else svg.appendChild(overlay);
+      }
+      function journeyButtons() {
+        return Array.prototype.slice.call(path.querySelectorAll('[data-route-journey-index]'));
+      }
+      function journeyMotionAllowed() {
+        return html.getAttribute('data-embed') !== 'true' &&
+          !document.hidden &&
+          Archify.motionGovernor &&
+          Archify.motionGovernor.capable === true &&
+          !Archify.motionGovernor.isPaused();
+      }
+      function routeOverviewStatus() {
+        return viewerText('viewer.route.overview.status', {
+          nodes: viewerCount('viewer.route.overview.node', activeNodeIds.length),
+          hops: viewerCount('viewer.route.overview.hop', activeEdges.length)
+        });
+      }
+      function centerJourneyButton(button) {
+        if (!button) return;
+        var target = button.offsetLeft - Math.max(0, (path.clientWidth - button.offsetWidth) / 2);
+        path.scrollLeft = Math.max(0, target);
+      }
+      function focusJourneyButton(index) {
+        var buttons = journeyButtons();
+        if (!buttons.length) return false;
+        var next = Math.max(0, Math.min(buttons.length - 1, index));
+        buttons.forEach(function (button, buttonIndex) {
+          button.setAttribute('tabindex', buttonIndex === next ? '0' : '-1');
+        });
+        try { buttons[next].focus({ preventScroll: true }); } catch (_) { buttons[next].focus(); }
+        centerJourneyButton(buttons[next]);
+        return true;
+      }
+      function renderJourneyControls() {
+        var hasRoute = mode === 'result' && activeNodeIds.length > 1;
+        var canPlay = hasRoute && journeyMotionAllowed();
+        journeyControls.hidden = !hasRoute;
+        journeyControls.setAttribute('data-playing', journeyPlaying ? 'true' : 'false');
+        journeyPrevBtn.disabled = !hasRoute || journeyIndex <= 0;
+        journeyNextBtn.disabled = !hasRoute || journeyIndex >= activeNodeIds.length - 1;
+        journeyOverviewBtn.disabled = !hasRoute || journeyIndex < 0;
+        journeyPlayBtn.disabled = !canPlay;
+        journeyPlayBtn.setAttribute('aria-pressed', journeyPlaying ? 'true' : 'false');
+        if (journeyPlaying) {
+          journeyPlayIcon.textContent = '\u275a\u275a';
+          journeyPlayLabel.textContent = viewerText('viewer.route.pause.label');
+          journeyPlayBtn.setAttribute('aria-label', viewerText('viewer.route.pause'));
+          journeyPlayBtn.title = viewerText('viewer.route.pause');
+        } else if (journeyComplete || journeyIndex === activeNodeIds.length - 1) {
+          journeyPlayIcon.textContent = '\u21bb';
+          journeyPlayLabel.textContent = viewerText('viewer.route.replay.label');
+          journeyPlayBtn.setAttribute('aria-label', viewerText('viewer.route.replay'));
+          journeyPlayBtn.title = viewerText(canPlay ? 'viewer.route.replay' : 'viewer.route.motionRequired');
+        } else {
+          journeyPlayIcon.textContent = '\u25b6';
+          journeyPlayLabel.textContent = viewerText('viewer.route.journey');
+          journeyPlayBtn.setAttribute('aria-label', viewerText('viewer.route.play'));
+          journeyPlayBtn.title = viewerText(canPlay ? 'viewer.route.play' : 'viewer.route.motionRequired');
+        }
+      }
+      function journeyGeometry(shape) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-labelledby');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.removeAttribute('data-route-match');
+        clone.removeAttribute('data-route-step');
+        clone.removeAttribute('data-route-journey-state');
+        clone.removeAttribute('data-route-journey-current');
+        clone.setAttribute('class', 'route-journey-flow');
+        clone.setAttribute('pathLength', '1');
+        return clone;
+      }
+      function renderJourneyPulse(edge) {
+        removeJourneyPulse();
+        if (!edge || !journeyMotionAllowed()) return false;
+        var overlay = document.createElementNS(namespace, 'g');
+        overlay.setAttribute('class', 'route-journey-overlay');
+        overlay.setAttribute('data-route-journey-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        var wrapper = document.createElementNS(namespace, 'g');
+        if (edge.hasAttribute('transform')) wrapper.setAttribute('transform', edge.getAttribute('transform'));
+        edgeShapes(edge).forEach(function (shape) { wrapper.appendChild(journeyGeometry(shape)); });
+        if (!wrapper.childNodes.length) return false;
+        overlay.appendChild(wrapper);
+        var firstNode = svg.querySelector('[data-node-id]');
+        if (firstNode) svg.insertBefore(overlay, firstNode);
+        else svg.appendChild(overlay);
+        if (Archify.motionGovernor && Archify.motionGovernor.capable) {
+          var token = 0;
+          token = Archify.motionGovernor.claim('route', function () {
+            if (journeyOwnerToken === token) journeyOwnerToken = 0;
+            removeJourneyPulse({ release: false });
+          });
+          journeyOwnerToken = token;
+        }
+        overlay.addEventListener('animationend', function () {
+          if (overlay.isConnected) removeJourneyPulse();
+        }, { once: true });
+        window.setTimeout(function () {
+          if (overlay.isConnected) removeJourneyPulse();
+        }, 860);
+        return true;
+      }
+      function applyJourneyState(index, options) {
+        options = options || {};
+        if (mode !== 'result' || !activeNodeIds.length) return false;
+        var byId = nodesById();
+        journeyIndex = Math.max(0, Math.min(activeNodeIds.length - 1, index));
+        removeJourneyPulse();
+        svg.setAttribute('data-route-journey', (journeyIndex + 1) + '/' + activeNodeIds.length);
+        panel.setAttribute('data-route-journey', String(journeyIndex));
+        activeNodeIds.forEach(function (id, step) {
+          var node = byId[id];
+          if (!node) return;
+          var state = step < journeyIndex ? 'past' : (step === journeyIndex ? 'current' : 'future');
+          node.setAttribute('data-route-journey-state', state);
+          if (step === journeyIndex) node.setAttribute('data-route-journey-current', '');
+          else node.removeAttribute('data-route-journey-current');
+        });
+        activeEdges.forEach(function (edge, step) {
+          var destination = step + 1;
+          var state = destination < journeyIndex ? 'past' : (destination === journeyIndex ? 'current' : 'future');
+          edge.setAttribute('data-route-journey-state', state);
+          if (destination === journeyIndex) edge.setAttribute('data-route-journey-current', '');
+          else edge.removeAttribute('data-route-journey-current');
+        });
+        var buttons = journeyButtons();
+        buttons.forEach(function (button, step) {
+          var state = step < journeyIndex ? 'past' : (step === journeyIndex ? 'current' : 'future');
+          button.setAttribute('data-route-journey-state', state);
+          button.setAttribute('tabindex', step === journeyIndex ? '0' : '-1');
+          if (step === journeyIndex) button.setAttribute('aria-current', 'step');
+          else button.removeAttribute('aria-current');
+        });
+        if (options.center !== false) centerJourneyButton(buttons[journeyIndex]);
+        var phase = viewerText(journeyPlaying
+          ? 'viewer.route.phase.playing'
+          : journeyComplete
+            ? 'viewer.route.phase.complete'
+            : 'viewer.route.phase.inspecting');
+        status.textContent = viewerText('viewer.route.step', {
+          index: journeyIndex + 1,
+          total: activeNodeIds.length,
+          phase: phase,
+          label: nodeLabel(byId[activeNodeIds[journeyIndex]], activeNodeIds[journeyIndex])
+        });
+        if (options.pulse === true && journeyIndex > 0) renderJourneyPulse(activeEdges[journeyIndex - 1]);
+        if (options.reveal !== false && Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal(activeNodeIds.slice(Math.max(0, journeyIndex - 1), Math.min(activeNodeIds.length, journeyIndex + 2)), {
+            includeNeighbors: false,
+            reason: 'route-journey',
+            maxScale: 1.65,
+            padding: 64,
+            duration: 360,
+            instant: !journeyMotionAllowed()
+          });
+        }
+        renderJourneyControls();
+        requestDocking();
+        return true;
+      }
+      function pauseJourney(options) {
+        options = options || {};
+        if (!journeyPlaying && options.complete !== true) {
+          renderJourneyControls();
+          return false;
+        }
+        stopJourneyTimer({ preserveElapsed: options.complete !== true && options.preserveElapsed !== false });
+        journeyPlaying = false;
+        journeyComplete = options.complete === true;
+        if (journeyComplete) journeyElapsedMs = 0;
+        removeJourneyPulse();
+        if (journeyIndex >= 0) applyJourneyState(journeyIndex, { center: false, pulse: false, reveal: false });
+        else renderJourneyControls();
+        return true;
+      }
+      function selectJourneyIndex(index) {
+        if (mode !== 'result') return false;
+        stopJourneyTimer();
+        journeyPlaying = false;
+        journeyComplete = false;
+        return applyJourneyState(index, { pulse: true, reveal: true });
+      }
+      function showJourneyOverview(options) {
+        options = options || {};
+        if (mode !== 'result') return false;
+        stopJourneyTimer();
+        journeyPlaying = false;
+        journeyComplete = false;
+        journeyIndex = -1;
+        clearJourneyPresentation({ keepControls: true });
+        status.textContent = routeOverviewStatus();
+        renderJourneyControls();
+        if (options.reveal !== false && Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal(activeNodeIds, { includeNeighbors: false, reason: 'route', instant: !journeyMotionAllowed() });
+        }
+        requestDocking();
+        return true;
+      }
+      function scheduleJourney() {
+        if (!journeyPlaying || !journeyMotionAllowed()) {
+          pauseJourney({ preserveElapsed: true });
+          return false;
+        }
+        var generation = ++journeyGeneration;
+        var remaining = Math.max(0, JOURNEY_DWELL_MS - journeyElapsedMs);
+        journeyStartedAt = Date.now();
+        journeyTimer = window.setTimeout(function () {
+          if (generation !== journeyGeneration || !journeyPlaying) return;
+          journeyTimer = null;
+          journeyStartedAt = 0;
+          journeyElapsedMs = 0;
+          if (journeyIndex >= activeNodeIds.length - 1) {
+            pauseJourney({ complete: true, preserveElapsed: false });
+            return;
+          }
+          applyJourneyState(journeyIndex + 1, { pulse: true, reveal: true });
+          // Camera and motion-owner handoff are allowed to synchronously
+          // settle the previous step. The new step always starts with a fresh
+          // dwell; never carry cleanup time into the next scheduler lease.
+          journeyElapsedMs = 0;
+          journeyStartedAt = 0;
+          scheduleJourney();
+        }, remaining);
+        return true;
+      }
+      function playJourney() {
+        if (mode !== 'result' || activeNodeIds.length < 2 || !journeyMotionAllowed()) {
+          renderJourneyControls();
+          return false;
+        }
+        if (journeyPlaying) return true;
+        if (journeyComplete || journeyIndex >= activeNodeIds.length - 1) {
+          journeyIndex = -1;
+          journeyElapsedMs = 0;
+          journeyComplete = false;
+        }
+        journeyPlaying = true;
+        if (journeyIndex < 0) applyJourneyState(0, { pulse: false, reveal: true });
+        else applyJourneyState(journeyIndex, { center: false, pulse: false, reveal: false });
+        scheduleJourney();
+        return true;
+      }
+      function toggleJourney() {
+        return journeyPlaying ? pauseJourney({ preserveElapsed: true }) : playJourney();
+      }
+      function previousJourney() {
+        return selectJourneyIndex(Math.max(0, journeyIndex < 0 ? 0 : journeyIndex - 1));
+      }
+      function nextJourney() {
+        return selectJourneyIndex(Math.min(activeNodeIds.length - 1, journeyIndex + 1));
+      }
+      function overlapArea(a, b) {
+        var width = Math.max(0, Math.min(a.right, b.right) - Math.max(a.left, b.left));
+        var height = Math.max(0, Math.min(a.bottom, b.bottom) - Math.max(a.top, b.top));
+        return width * height;
+      }
+      function updateDocking() {
+        if (panel.hidden) {
+          panel.removeAttribute('data-route-dock');
+          return;
+        }
+        var containerRect = container.getBoundingClientRect();
+        var width = panel.offsetWidth;
+        var height = panel.offsetHeight;
+        if (!width || !height) return;
+        var currentRect = panel.getBoundingClientRect();
+        var left = currentRect.left;
+        var topCandidate = {
+          left: left,
+          right: left + width,
+          top: containerRect.top + 8,
+          bottom: containerRect.top + 8 + height
+        };
+        var nav = container.querySelector('.diagram-nav');
+        var navRect = nav ? nav.getBoundingClientRect() : null;
+        var bottom = navRect ? navRect.top - 9 : containerRect.bottom - 8;
+        var bottomCandidate = {
+          left: left,
+          right: left + width,
+          top: bottom - height,
+          bottom: bottom
+        };
+        var byId = nodesById();
+        var relevant = activeNodeIds.length ? activeNodeIds : (startId ? [startId] : []);
+        var blockers = relevant.map(function (id) { return byId[id]; }).filter(Boolean).map(function (node) {
+          return node.getBoundingClientRect();
+        });
+        function score(candidate) {
+          var value = blockers.reduce(function (sum, rect) { return sum + overlapArea(candidate, rect); }, 0);
+          if (navRect) value += overlapArea(candidate, navRect) * 4;
+          if (candidate.top < containerRect.top || candidate.bottom > containerRect.bottom) value += 1000000;
+          return value;
+        }
+        if (score(topCandidate) <= score(bottomCandidate)) panel.setAttribute('data-route-dock', 'top');
+        else panel.setAttribute('data-route-dock', 'bottom');
+      }
+      function requestDocking() {
+        requestAnimationFrame(updateDocking);
+        window.setTimeout(updateDocking, 120);
+        window.setTimeout(updateDocking, 560);
+      }
+      function chooseStart(id) {
+        var byId = nodesById();
+        if (!byId[id]) return false;
+        cleanSvgState();
+        startId = id;
+        endId = null;
+        mode = 'target';
+        var reached = reachableFrom(id);
+        byId[id].setAttribute('data-route-start', '');
+        byId[id].setAttribute('data-route-match', '');
+        Object.keys(reached).forEach(function (candidateId) {
+          if (candidateId !== id && byId[candidateId]) byId[candidateId].setAttribute('data-route-candidate', '');
+        });
+        svg.setAttribute('data-route-picking', 'target');
+        panel.setAttribute('data-state', 'target');
+        title.textContent = viewerText('viewer.route.destination', { label: nodeLabel(byId[id], id) });
+        renderPath([id]);
+        var count = Math.max(0, Object.keys(reached).length - 1);
+        status.textContent = count
+          ? viewerCount('viewer.route.destination.count', count)
+          : viewerText('viewer.route.noOutgoing');
+        findBtn.hidden = false;
+        findBtn.textContent = viewerText('viewer.route.destination.find');
+        findBtn.setAttribute('aria-label', viewerText('viewer.route.destination.find.aria'));
+        requestDocking();
+        return true;
+      }
+      function showResult(result, options) {
+        options = options || {};
+        var byId = nodesById();
+        cleanSvgState();
+        mode = 'result';
+        startId = result.nodes[0];
+        endId = result.nodes[result.nodes.length - 1];
+        activeNodeIds = result.nodes.slice();
+        activeEdges = result.edges.slice();
+        result.nodes.forEach(function (id, step) {
+          var node = byId[id];
+          if (!node) return;
+          node.setAttribute('data-route-match', '');
+          node.setAttribute('data-route-step', String(step));
+          node.style.setProperty('--route-step', String(step));
+          if (step === 0) node.setAttribute('data-route-start', '');
+          if (step === result.nodes.length - 1) node.setAttribute('data-route-end', '');
+        });
+        result.edges.forEach(function (edge, step) {
+          edge.setAttribute('data-route-match', '');
+          edge.setAttribute('data-route-step', String(step));
+          edge.style.setProperty('--route-step', String(step));
+        });
+        svg.setAttribute('data-route-active', startId + '~' + endId);
+        renderOverlay(result.edges);
+        renderPath(result.nodes, { interactive: true });
+        panel.setAttribute('data-state', 'result');
+        panel.hidden = false;
+        title.textContent = viewerText('viewer.route.result.title', {
+          source: nodeLabel(byId[startId], startId),
+          target: nodeLabel(byId[endId], endId)
+        });
+        findBtn.hidden = true;
+        copyBtn.hidden = false;
+        setTrigger(true);
+        if (Archify.exportMenu && typeof Archify.exportMenu.syncRouteShare === 'function') Archify.exportMenu.syncRouteShare();
+        if (options.updateUrl !== false) {
+          replaceRouteHash(encodeURIComponent(startId) + '~' + encodeURIComponent(endId));
+        }
+        showJourneyOverview({ reveal: false });
+        if (Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal(result.nodes, { includeNeighbors: false, reason: 'route' });
+        }
+        return true;
+      }
+      function choose(id, options) {
+        options = options || {};
+        var byId = nodesById();
+        if (!byId[id]) return false;
+        if (mode === 'source') return chooseStart(id);
+        if (mode !== 'target') return false;
+        if (id === startId) {
+          panel.setAttribute('data-state', 'error');
+          title.textContent = viewerText('viewer.route.differentDestination');
+          status.textContent = viewerText('viewer.route.distinct');
+          return false;
+        }
+        var result = shortestDirectedPath(startId, id);
+        if (!result) {
+          panel.setAttribute('data-state', 'error');
+          title.textContent = viewerText('viewer.route.unreachable', { label: nodeLabel(byId[id], id) });
+          status.textContent = viewerText('viewer.route.unreachable.detail', {
+            target: nodeLabel(byId[id], id),
+            source: nodeLabel(byId[startId], startId)
+          });
+          return false;
+        }
+        return showResult(result, options);
+      }
+      function begin(options) {
+        options = options || {};
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (Archify.semanticLens && Archify.semanticLens.active()) {
+          Archify.semanticLens.clear({ updateUrl: false, preserveView: true, closePanel: true });
+        }
+        var focused = options.source || (Archify.focus && typeof Archify.focus.active === 'function' ? Archify.focus.active() : null);
+        if (Array.isArray(focused)) focused = null;
+        clear({ updateUrl: false, preserveView: true, restoreFocus: false });
+        if (Archify.intentTrace && typeof Archify.intentTrace.clear === 'function') Archify.intentTrace.clear({ announce: false });
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        if (Archify.focus && typeof Archify.focus.clear === 'function') {
+          Archify.focus.clear({ updateUrl: false, preserveView: true });
+        }
+        if (Archify.finder && Archify.finder.isOpen()) Archify.finder.close({ restoreFocus: false });
+        if (Archify.radar && Archify.radar.isOpen()) Archify.radar.close({ restoreFocus: false });
+        mode = 'source';
+        panel.hidden = false;
+        panel.setAttribute('data-state', 'source');
+        svg.setAttribute('data-route-picking', 'source');
+        title.textContent = viewerText('viewer.route.start');
+        renderPlaceholder(viewerText('viewer.route.pickOne'));
+        status.textContent = viewerText('viewer.route.start.instructions');
+        findBtn.hidden = false;
+        findBtn.textContent = viewerText('viewer.route.start.find');
+        findBtn.setAttribute('aria-label', viewerText('viewer.route.start.find.aria'));
+        copyBtn.hidden = true;
+        setTrigger(true);
+        if (focused && nodesById()[focused]) chooseStart(focused);
+        if (options.focusNode === true && !focused) {
+          var first = nodes()[0];
+          if (first) {
+            try { first.focus({ preventScroll: true }); } catch (_) { try { first.focus(); } catch (_) {} }
+          }
+        }
+        return true;
+      }
+      function toggle(options) {
+        if (mode !== 'idle') {
+          clear({ restoreFocus: true });
+          return false;
+        }
+        return begin(options);
+      }
+      function finderContext() {
+        var byId = nodesById();
+        if (mode === 'source') {
+          var outgoing = outgoingByNode();
+          var sourceIds = nodes().map(function (node) { return node.getAttribute('data-node-id'); }).filter(function (id) {
+            return outgoing[id] && outgoing[id].length;
+          });
+          var sourceBadges = {};
+          sourceIds.forEach(function (id) { sourceBadges[id] = viewerText('viewer.route.finder.source.badge'); });
+          return {
+            kind: 'route-source',
+            title: viewerText('viewer.route.finder.source.title'),
+            placeholder: viewerText('viewer.route.finder.source.placeholder'),
+            empty: viewerText('viewer.route.finder.source.empty'),
+            resultsLabel: viewerText('viewer.route.finder.source.results'),
+            availableNoun: viewerText('viewer.route.finder.source.noun'),
+            allowedIds: sourceIds,
+            badges: sourceBadges
+          };
+        }
+        if (mode === 'target' && startId && byId[startId]) {
+          var distances = hopDistancesFrom(startId);
+          var targetIds = Object.keys(distances).filter(function (id) { return id !== startId && byId[id]; });
+          var targetBadges = {};
+          targetIds.forEach(function (id) {
+            targetBadges[id] = viewerCount('viewer.route.hop', distances[id]);
+          });
+          return {
+            kind: 'route-target',
+            title: viewerText('viewer.route.finder.target.title', { label: nodeLabel(byId[startId], startId) }),
+            placeholder: viewerText('viewer.route.finder.target.placeholder'),
+            empty: viewerText('viewer.route.finder.target.empty'),
+            resultsLabel: viewerText('viewer.route.finder.target.results'),
+            availableNoun: viewerText('viewer.route.finder.target.noun'),
+            allowedIds: targetIds,
+            badges: targetBadges
+          };
+        }
+        return null;
+      }
+      function finderOpening() {
+        panel.setAttribute('data-finder-open', 'true');
+      }
+      function finderClosed(options) {
+        options = options || {};
+        panel.removeAttribute('data-finder-open');
+        requestDocking();
+        if (options.restoreFocus === true && !findBtn.hidden) findBtn.focus();
+      }
+      function openFinder() {
+        var context = finderContext();
+        if (!context || !Archify.finder) return false;
+        return Archify.finder.open({ context: context });
+      }
+      function fallbackCopy(value) {
+        var field = document.createElement('textarea');
+        field.value = value;
+        field.setAttribute('readonly', '');
+        field.style.position = 'fixed';
+        field.style.opacity = '0';
+        document.body.appendChild(field);
+        field.select();
+        var copied = false;
+        try { copied = document.execCommand('copy'); } catch (_) {}
+        field.remove();
+        return copied;
+      }
+      function copyLink() {
+        if (mode !== 'result') return Promise.resolve(false);
+        var value = location.href.replace(/#.*$/, '') + '#route=' + encodeURIComponent(startId) + '~' + encodeURIComponent(endId);
+        var copy = navigator.clipboard && typeof navigator.clipboard.writeText === 'function'
+          ? navigator.clipboard.writeText(value).then(function () { return true; }).catch(function () { return fallbackCopy(value); })
+          : Promise.resolve(fallbackCopy(value));
+        return copy.then(function (copied) {
+          copyBtn.textContent = viewerText(copied ? 'viewer.common.copied' : 'viewer.common.copyFailed');
+          copyBtn.setAttribute('aria-label', viewerText(copied ? 'viewer.route.copy.success' : 'viewer.route.copy.failed'));
+          window.setTimeout(function () {
+            copyBtn.textContent = viewerText('viewer.route.copy');
+            copyBtn.setAttribute('aria-label', viewerText('viewer.route.copy.aria'));
+          }, 1600);
+          return copied;
+        });
+      }
+      function interceptSelection(event) {
+        if (mode !== 'source' && mode !== 'target') return;
+        if (container.getAttribute('data-just-panned') === 'true') return;
+        var node = event.target.closest('[data-node-id]');
+        if (!node) return;
+        if (event.type === 'keydown' && event.key !== 'Enter' && event.key !== ' ') return;
+        event.preventDefault();
+        event.stopImmediatePropagation();
+        choose(node.getAttribute('data-node-id'));
+      }
+      function syncFromHash() {
+        try {
+          var params = new URLSearchParams(location.hash.replace(/^#/, ''));
+          var route = params.get('route');
+          if (!route) {
+            if (mode !== 'idle') clear({ updateUrl: false, restoreFocus: false });
+            return;
+          }
+          var parts = route.split('~');
+          if (parts.length !== 2) return;
+          var byId = nodesById();
+          if (!byId[parts[0]] || !byId[parts[1]]) return;
+          begin({ source: parts[0], focusNode: false });
+          choose(parts[1], { updateUrl: false });
+        } catch (_) {}
+      }
+      function escapeRoute(options) {
+        options = options || {};
+        if (journeyPlaying) {
+          pauseJourney({ preserveElapsed: true });
+          if (options.restoreFocus === true) journeyPlayBtn.focus();
+          return 'paused';
+        }
+        if (journeyIndex >= 0) {
+          showJourneyOverview({ reveal: true });
+          if (options.restoreFocus === true) journeyOverviewBtn.focus();
+          return 'overview';
+        }
+        clear({ restoreFocus: options.restoreFocus === true });
+        return 'cleared';
+      }
+      function syncJourneyMotion() {
+        if (journeyPlaying && !journeyMotionAllowed()) pauseJourney({ preserveElapsed: true });
+        renderJourneyControls();
+        return journeyMotionAllowed();
+      }
+
+      trigger.addEventListener('click', function () { toggle({ focusNode: false }); });
+      findBtn.addEventListener('click', openFinder);
+      clearBtn.addEventListener('click', function () { clear({ restoreFocus: true }); });
+      copyBtn.addEventListener('click', copyLink);
+      journeyPrevBtn.addEventListener('click', previousJourney);
+      journeyPlayBtn.addEventListener('click', toggleJourney);
+      journeyNextBtn.addEventListener('click', nextJourney);
+      journeyOverviewBtn.addEventListener('click', function () { showJourneyOverview({ reveal: true }); });
+      path.addEventListener('click', function (event) {
+        var button = event.target.closest('[data-route-journey-index]');
+        if (!button) return;
+        selectJourneyIndex(Number(button.getAttribute('data-route-journey-index')));
+      });
+      path.addEventListener('focusin', function (event) {
+        if (journeyPlaying && event.target.closest('[data-route-journey-index]')) pauseJourney({ preserveElapsed: true });
+      });
+      path.addEventListener('keydown', function (event) {
+        var button = event.target.closest('[data-route-journey-index]');
+        if (!button) return;
+        var index = Number(button.getAttribute('data-route-journey-index'));
+        var next = null;
+        if (event.key === 'ArrowRight') next = Math.min(activeNodeIds.length - 1, index + 1);
+        else if (event.key === 'ArrowLeft') next = Math.max(0, index - 1);
+        else if (event.key === 'Home') next = 0;
+        else if (event.key === 'End') next = activeNodeIds.length - 1;
+        if (next !== null) {
+          event.preventDefault();
+          focusJourneyButton(next);
+          return;
+        }
+        if (event.key === 'Enter' || event.key === ' ') {
+          event.preventDefault();
+          selectJourneyIndex(index);
+        }
+      });
+      svg.addEventListener('click', interceptSelection, true);
+      svg.addEventListener('keydown', interceptSelection, true);
+      container.addEventListener('scroll', updateDocking, { passive: true });
+      window.addEventListener('resize', requestDocking);
+      window.addEventListener('beforeprint', function () {
+        if (journeyPlaying) pauseJourney({ preserveElapsed: true, reason: 'print' });
+        else removeJourneyPulse();
+      });
+      window.addEventListener('hashchange', function () { requestAnimationFrame(syncFromHash); });
+      syncFromHash();
+
+      return {
+        begin: begin,
+        choose: choose,
+        clear: clear,
+        toggle: toggle,
+        escape: escapeRoute,
+        copyLink: copyLink,
+        playJourney: playJourney,
+        pauseJourney: pauseJourney,
+        showOverview: showJourneyOverview,
+        selectJourneyIndex: selectJourneyIndex,
+        syncMotion: syncJourneyMotion,
+        isJourneyPlaying: function () { return journeyPlaying; },
+        finderContext: finderContext,
+        finderOpening: finderOpening,
+        finderClosed: finderClosed,
+        openFinder: openFinder,
+        exportSnapshot: exportSnapshot,
+        active: function () { return mode === 'idle' ? null : mode; },
+        result: function () {
+          return mode === 'result'
+            ? { source: startId, target: endId, nodes: activeNodeIds.slice(), hops: activeEdges.length, journey: journeyIndex, playing: journeyPlaying }
+            : null;
+        }
+      };
+    })();
+
+    /* ============================================================
+       Semantic Lens — a counted, viewer-only legend over data-node-kind.
+       One selected kind reveals every authored relationship touching it.
+       Two selected kinds compare only direct cross-kind relationships while
+       preserving the full diagram as a dimmed spatial reference.
+       ============================================================ */
+    Archify.semanticLens = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector(':scope > svg');
+      var trigger = document.getElementById('btn-semantic-lens');
+      var panel = document.getElementById('semantic-lens');
+      var closeBtn = document.getElementById('semantic-lens-close');
+      var kindsRoot = document.getElementById('semantic-lens-kinds');
+      var status = document.getElementById('semantic-lens-status');
+      var copyBtn = document.getElementById('semantic-lens-copy');
+      var clearBtn = document.getElementById('semantic-lens-clear');
+      var legendBridge = svg.querySelector('[data-legend-bridge]');
+      var legendEntries = [];
+      var hoveredLegendEntry = null;
+      var focusedLegendEntry = null;
+      var activeLegendPreview = null;
+      var lensOpener = trigger;
+      var selectedKinds = [];
+      var namespace = 'http://www.w3.org/2000/svg';
+      var finePointerQuery = window.matchMedia ? window.matchMedia('(hover: hover) and (pointer: fine)') : null;
+      var MAX_LENS_FLOW_EDGES = 24;
+
+      function nodesById() {
+        var byId = {};
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-node-id][data-node-kind]'), function (node) {
+          var id = node.getAttribute('data-node-id');
+          if (id && !byId[id]) byId[id] = node;
+        });
+        return byId;
+      }
+      function collectKinds() {
+        var kinds = {};
+        var byId = nodesById();
+        Object.keys(byId).forEach(function (id) {
+          var node = byId[id];
+          var value = node.getAttribute('data-node-kind') || 'neutral';
+          var kind = kinds[value] || (kinds[value] = { id: value, label: viewerKindLabel(value), nodes: [] });
+          kind.nodes.push(node);
+        });
+        return Object.keys(kinds).map(function (key) { return kinds[key]; }).sort(function (a, b) {
+          return b.nodes.length - a.nodes.length || a.label.localeCompare(b.label);
+        });
+      }
+      function edgeGroups() {
+        var groups = {};
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'), function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          var key = edge.getAttribute('data-edge-key') || [from, to, edge.getAttribute('data-edge-label') || ''].join('\u0000');
+          if (!groups[key]) groups[key] = { key: key, from: from, to: to, members: [] };
+          groups[key].members.push(edge);
+        });
+        return Object.keys(groups).map(function (key) { return groups[key]; });
+      }
+      function edgeShapes(edge) {
+        if (!edge) return [];
+        if (/^(path|line|polyline)$/i.test(edge.tagName || '')) return [edge];
+        return Array.prototype.slice.call(edge.querySelectorAll('path, line, polyline'));
+      }
+      function legendSourceBounds(entry) {
+        var bounds = null;
+        Array.prototype.forEach.call(entry.children, function (child) {
+          if (child.hasAttribute('data-legend-bridge-runtime')) return;
+          var box;
+          try { box = child.getBBox(); } catch (_) { return; }
+          if (!box || !Number.isFinite(box.x) || !Number.isFinite(box.y)) return;
+          var next = { left: box.x, top: box.y, right: box.x + box.width, bottom: box.y + box.height };
+          if (!bounds) bounds = next;
+          else {
+            bounds.left = Math.min(bounds.left, next.left);
+            bounds.top = Math.min(bounds.top, next.top);
+            bounds.right = Math.max(bounds.right, next.right);
+            bounds.bottom = Math.max(bounds.bottom, next.bottom);
+          }
+        });
+        return bounds;
+      }
+      function layoutLegendEntry(entry) {
+        var bounds = legendSourceBounds(entry);
+        var hit = entry.querySelector('[data-legend-hit]');
+        var badge = entry.querySelector('[data-legend-count-badge]');
+        if (!bounds || !hit || !badge) return false;
+        var count = entry.getAttribute('data-legend-count') || '0';
+        var centerY = (bounds.top + bounds.bottom) / 2;
+        var badgeWidth = Math.max(14, count.length * 5 + 8);
+        var badgeX = bounds.right + 3;
+        var hitX = bounds.left - 5;
+        var hitRight = badgeX + badgeWidth + 4;
+        hit.setAttribute('x', hitX.toFixed(2));
+        hit.setAttribute('y', (centerY - 12).toFixed(2));
+        hit.setAttribute('width', Math.max(24, hitRight - hitX).toFixed(2));
+        hit.setAttribute('height', '24');
+        hit.setAttribute('rx', '4');
+        var badgeRect = badge.querySelector('rect');
+        var badgeText = badge.querySelector('text');
+        badgeRect.setAttribute('x', badgeX.toFixed(2));
+        badgeRect.setAttribute('y', (centerY - 7).toFixed(2));
+        badgeRect.setAttribute('width', badgeWidth.toFixed(2));
+        badgeRect.setAttribute('height', '14');
+        badgeRect.setAttribute('rx', '7');
+        badgeText.setAttribute('x', (badgeX + badgeWidth / 2).toFixed(2));
+        badgeText.setAttribute('y', (centerY + 2.5).toFixed(2));
+        return true;
+      }
+      function layoutLegendBridge() {
+        legendEntries.forEach(layoutLegendEntry);
+        if (!legendBridge) return;
+        Array.prototype.forEach.call(legendBridge.querySelectorAll('[data-legend-zero]'), layoutLegendEntry);
+      }
+      function decorateLegendBridge() {
+        legendEntries = [];
+        if (!legendBridge || html.getAttribute('data-embed') === 'true') return false;
+        var facts = {};
+        collectKinds().forEach(function (kind) { facts[kind.id] = kind; });
+        Array.prototype.forEach.call(legendBridge.querySelectorAll('[data-legend-kind]'), function (entry) {
+          var kind = entry.getAttribute('data-legend-kind');
+          var fact = facts[kind];
+          var count = fact ? fact.nodes.length : 0;
+          entry.setAttribute('data-legend-count', String(count));
+          var hit = document.createElementNS(namespace, 'rect');
+          hit.setAttribute('data-legend-bridge-runtime', '');
+          hit.setAttribute('data-legend-hit', '');
+          hit.setAttribute('aria-hidden', 'true');
+          entry.insertBefore(hit, entry.firstChild);
+          var badge = document.createElementNS(namespace, 'g');
+          badge.setAttribute('data-legend-bridge-runtime', '');
+          badge.setAttribute('data-legend-count-badge', '');
+          badge.setAttribute('aria-hidden', 'true');
+          badge.appendChild(document.createElementNS(namespace, 'rect'));
+          var countText = document.createElementNS(namespace, 'text');
+          countText.textContent = String(count);
+          badge.appendChild(countText);
+          entry.appendChild(badge);
+          if (!fact || !count) {
+            entry.setAttribute('data-legend-zero', '');
+            return;
+          }
+          entry.setAttribute('role', 'button');
+          entry.setAttribute('tabindex', legendEntries.length ? '-1' : '0');
+          var visibleLabel = entry.getAttribute('data-legend-label') || fact.label;
+          entry.setAttribute('aria-label', viewerCount('viewer.lens.legend.inspect', count, { label: visibleLabel }));
+          entry.setAttribute('aria-pressed', 'false');
+          entry.setAttribute('aria-haspopup', 'dialog');
+          entry.setAttribute('aria-controls', 'semantic-lens');
+          entry.setAttribute('aria-expanded', 'false');
+          legendEntries.push(entry);
+        });
+        if (!legendEntries.length) return false;
+        legendBridge.setAttribute('role', legendEntries.length >= 3 ? 'toolbar' : 'group');
+        legendBridge.setAttribute('aria-label', viewerText('viewer.lens.legend'));
+        syncLegendBridge();
+        layoutLegendBridge();
+        try {
+          if (document.fonts && document.fonts.ready) document.fonts.ready.then(layoutLegendBridge);
+        } catch (_) {}
+        return true;
+      }
+      function syncLegendBridge() {
+        legendEntries.forEach(function (entry) {
+          var selected = selectedKinds.indexOf(entry.getAttribute('data-legend-kind')) >= 0;
+          entry.setAttribute('aria-pressed', selected ? 'true' : 'false');
+          entry.setAttribute('aria-expanded', !panel.hidden && lensOpener === entry ? 'true' : 'false');
+          if (selected) entry.setAttribute('data-legend-selected', '');
+          else entry.removeAttribute('data-legend-selected');
+        });
+      }
+      function clearLegendPreview() {
+        activeLegendPreview = null;
+        svg.removeAttribute('data-legend-preview-active');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-legend-preview-match], [data-legend-preview-selected], [data-legend-preview-peer]'), function (element) {
+          element.removeAttribute('data-legend-preview-match');
+          element.removeAttribute('data-legend-preview-selected');
+          element.removeAttribute('data-legend-preview-peer');
+        });
+      }
+      function strongerLegendOwnerActive() {
+        return selectedKinds.length > 0 || !panel.hidden || html.getAttribute('data-present') === 'true' ||
+          svg.hasAttribute('data-focus-active') || svg.hasAttribute('data-intent-trace-active') ||
+          svg.hasAttribute('data-route-picking') || svg.hasAttribute('data-route-active') ||
+          svg.hasAttribute('data-story-active') || svg.hasAttribute('data-relationship-preview-active');
+      }
+      function previewLegendKind(entry) {
+        clearLegendPreview();
+        if (!entry || strongerLegendOwnerActive()) return false;
+        var kind = entry.getAttribute('data-legend-kind');
+        var byId = nodesById();
+        var matches = Object.keys(byId).filter(function (id) {
+          return (byId[id].getAttribute('data-node-kind') || 'neutral') === kind;
+        });
+        if (!matches.length) return false;
+        var chosen = {};
+        matches.forEach(function (id) {
+          chosen[id] = true;
+          byId[id].setAttribute('data-legend-preview-match', '');
+          byId[id].setAttribute('data-legend-preview-selected', '');
+        });
+        edgeGroups().forEach(function (edge) {
+          if (!chosen[edge.from] && !chosen[edge.to]) return;
+          edge.members.forEach(function (member) { member.setAttribute('data-legend-preview-match', ''); });
+          [edge.from, edge.to].forEach(function (id) {
+            if (!byId[id] || chosen[id]) return;
+            byId[id].setAttribute('data-legend-preview-match', '');
+            byId[id].setAttribute('data-legend-preview-peer', '');
+          });
+        });
+        svg.setAttribute('data-legend-preview-active', kind);
+        activeLegendPreview = entry;
+        return true;
+      }
+      function syncLegendPreview() {
+        var next = focusedLegendEntry || hoveredLegendEntry;
+        if (next === activeLegendPreview) return;
+        clearLegendPreview();
+        if (next) previewLegendKind(next);
+      }
+      function activateLegendEntry(entry) {
+        if (!entry || entry.getAttribute('role') !== 'button') return false;
+        clearLegendPreview();
+        select(entry.getAttribute('data-legend-kind'));
+        return open({ opener: entry });
+      }
+      function removeFlowOverlay() {
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-semantic-lens-overlay]'), function (element) {
+          element.remove();
+        });
+        svg.removeAttribute('data-lens-flow-count');
+        svg.removeAttribute('data-lens-flow-density');
+      }
+      function flowGeometry(shape, direction, step) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-hidden');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.removeAttribute('data-lens-match');
+        clone.setAttribute('class', 'semantic-lens-flow');
+        clone.setAttribute('data-direction', direction);
+        clone.setAttribute('pathLength', '1');
+        clone.style.setProperty('--lens-flow-delay', (step * 0.08).toFixed(2) + 's');
+        return clone;
+      }
+      function renderFlowOverlay(entries) {
+        removeFlowOverlay();
+        svg.setAttribute('data-lens-flow-count', String(entries.length));
+        if (!entries.length || html.getAttribute('data-embed') === 'true') return false;
+        if (entries.length > MAX_LENS_FLOW_EDGES) {
+          svg.setAttribute('data-lens-flow-density', 'quiet');
+          return false;
+        }
+        var overlay = document.createElementNS(namespace, 'g');
+        overlay.setAttribute('class', 'semantic-lens-overlay');
+        overlay.setAttribute('data-semantic-lens-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        entries.forEach(function (entry, step) {
+          var wrapper = document.createElementNS(namespace, 'g');
+          if (entry.edge.members[0].hasAttribute('transform')) {
+            wrapper.setAttribute('transform', entry.edge.members[0].getAttribute('transform'));
+          }
+          edgeShapes(entry.edge.members[0]).forEach(function (shape) {
+            wrapper.appendChild(flowGeometry(shape, entry.direction, step));
+          });
+          if (wrapper.childNodes.length) overlay.appendChild(wrapper);
+        });
+        if (!overlay.childNodes.length) return false;
+        var firstNode = svg.querySelector('[data-node-id]');
+        if (firstNode) svg.insertBefore(overlay, firstNode);
+        else svg.appendChild(overlay);
+        return true;
+      }
+      function cleanSvgState() {
+        removeFlowOverlay();
+        svg.removeAttribute('data-lens-active');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-lens-match], [data-lens-selected], [data-lens-peer]'), function (element) {
+          element.removeAttribute('data-lens-match');
+          element.removeAttribute('data-lens-selected');
+          element.removeAttribute('data-lens-peer');
+        });
+      }
+      function renderKinds() {
+        kindsRoot.textContent = '';
+        collectKinds().forEach(function (kind) {
+          var button = document.createElement('button');
+          button.type = 'button';
+          button.className = 'semantic-lens-kind';
+          button.setAttribute('data-kind', kind.id);
+          button.setAttribute('aria-pressed', selectedKinds.indexOf(kind.id) >= 0 ? 'true' : 'false');
+          button.setAttribute('aria-label', viewerCount('viewer.lens.kind.count', kind.nodes.length, { label: kind.label }));
+          button.disabled = selectedKinds.length >= 2 && selectedKinds.indexOf(kind.id) === -1;
+          var swatch = document.createElement('span');
+          swatch.className = 'semantic-lens-swatch';
+          swatch.setAttribute('aria-hidden', 'true');
+          var label = document.createElement('strong');
+          label.textContent = kind.label;
+          var count = document.createElement('em');
+          count.textContent = String(kind.nodes.length);
+          button.appendChild(swatch);
+          button.appendChild(label);
+          button.appendChild(count);
+          kindsRoot.appendChild(button);
+        });
+      }
+      function updateHash() {
+        try {
+          var hash = selectedKinds.length
+            ? '#lens=' + selectedKinds.map(encodeURIComponent).join('~')
+            : '';
+          history.replaceState(null, '', location.pathname + location.search + hash);
+        } catch (_) {}
+      }
+      function updateTrigger() {
+        var active = selectedKinds.length > 0;
+        trigger.setAttribute('aria-pressed', active ? 'true' : 'false');
+        trigger.setAttribute('aria-label', viewerText(active ? 'viewer.lens.openActive' : 'viewer.lens.open'));
+        copyBtn.hidden = !active;
+        syncLegendBridge();
+      }
+      function overlapArea(a, b) {
+        var width = Math.max(0, Math.min(a.right, b.right) - Math.max(a.left, b.left));
+        var height = Math.max(0, Math.min(a.bottom, b.bottom) - Math.max(a.top, b.top));
+        return width * height;
+      }
+      function dockPanel(byId) {
+        panel.removeAttribute('data-dock-side');
+        if (panel.hidden || window.innerWidth <= 720) return 'right';
+        var panelRect = panel.getBoundingClientRect();
+        var containerRect = container.getBoundingClientRect();
+        if (!panelRect.width || !panelRect.height) return 'right';
+        var selectedRects = Object.keys(byId).filter(function (id) {
+          return selectedKinds.indexOf(byId[id].getAttribute('data-node-kind') || 'neutral') >= 0;
+        }).map(function (id) { return byId[id].getBoundingClientRect(); });
+        var top = panelRect.top;
+        var width = panelRect.width;
+        var leftCandidate = { left: containerRect.left + 16, right: containerRect.left + 16 + width, top: top, bottom: panelRect.bottom };
+        var rightCandidate = { left: containerRect.right - 16 - width, right: containerRect.right - 16, top: top, bottom: panelRect.bottom };
+        var leftScore = selectedRects.reduce(function (score, rect) { return score + overlapArea(leftCandidate, rect); }, 0);
+        var rightScore = selectedRects.reduce(function (score, rect) { return score + overlapArea(rightCandidate, rect); }, 0);
+        var legend = svg.querySelector('[data-legend]');
+        var nav = container.querySelector('.diagram-nav');
+        var protectedRects = [legend, nav].filter(function (element) {
+          return element && !element.hidden && window.getComputedStyle(element).display !== 'none';
+        }).map(function (element) { return element.getBoundingClientRect(); });
+        leftScore += protectedRects.reduce(function (score, rect) {
+          return score + overlapArea(leftCandidate, rect) * 1000;
+        }, 0);
+        rightScore += protectedRects.reduce(function (score, rect) {
+          return score + overlapArea(rightCandidate, rect) * 1000;
+        }, 0);
+        var side = leftScore < rightScore ? 'left' : 'right';
+        panel.setAttribute('data-dock-side', side);
+        return side;
+      }
+      function applySelection(options) {
+        options = options || {};
+        cleanSvgState();
+        var byId = nodesById();
+        var nodeKind = {};
+        Object.keys(byId).forEach(function (id) { nodeKind[id] = byId[id].getAttribute('data-node-kind') || 'neutral'; });
+        if (!selectedKinds.length) {
+          status.textContent = viewerText('viewer.lens.choose');
+          updateTrigger();
+          renderKinds();
+          dockPanel(byId);
+          if (options.updateUrl !== false) updateHash();
+          return false;
+        }
+
+        var chosen = {};
+        selectedKinds.forEach(function (kind) { chosen[kind] = true; });
+        Object.keys(byId).forEach(function (id) {
+          if (!chosen[nodeKind[id]]) return;
+          byId[id].setAttribute('data-lens-match', '');
+          byId[id].setAttribute('data-lens-selected', '');
+        });
+
+        var touching = 0;
+        var forward = 0;
+        var reverse = 0;
+        var crossKind = selectedKinds.length === 2;
+        var matchedFlow = [];
+        edgeGroups().forEach(function (edge) {
+          var fromKind = nodeKind[edge.from];
+          var toKind = nodeKind[edge.to];
+          var match = false;
+          if (crossKind) {
+            if (fromKind === selectedKinds[0] && toKind === selectedKinds[1]) { match = true; forward += 1; }
+            if (fromKind === selectedKinds[1] && toKind === selectedKinds[0]) { match = true; reverse += 1; }
+          } else if (fromKind === selectedKinds[0] || toKind === selectedKinds[0]) {
+            match = true;
+            touching += 1;
+          }
+          if (!match) return;
+          var direction = 'within';
+          if (crossKind) {
+            direction = fromKind === selectedKinds[0] ? 'forward' : 'reverse';
+          } else {
+            direction = fromKind === selectedKinds[0] && toKind !== selectedKinds[0] ? 'out'
+              : (toKind === selectedKinds[0] && fromKind !== selectedKinds[0] ? 'in' : 'within');
+          }
+          matchedFlow.push({ edge: edge, direction: direction });
+          edge.members.forEach(function (member) { member.setAttribute('data-lens-match', ''); });
+          if (!crossKind) {
+            [edge.from, edge.to].forEach(function (id) {
+              if (!byId[id]) return;
+              byId[id].setAttribute('data-lens-match', '');
+              if (!chosen[nodeKind[id]]) byId[id].setAttribute('data-lens-peer', '');
+            });
+          }
+        });
+
+        svg.setAttribute('data-lens-active', selectedKinds.join(' '));
+        renderFlowOverlay(matchedFlow);
+        if (crossKind) {
+          var total = forward + reverse;
+          status.textContent = viewerCount('viewer.lens.compare', total, {
+            first: viewerKindLabel(selectedKinds[0]),
+            second: viewerKindLabel(selectedKinds[1]),
+            forward: forward,
+            reverse: reverse
+          });
+        } else {
+          var nodeCount = collectKinds().filter(function (kind) { return kind.id === selectedKinds[0]; })[0].nodes.length;
+          status.textContent = viewerText('viewer.lens.single', {
+            nodes: viewerCount('viewer.lens.node', nodeCount, { label: viewerKindLabel(selectedKinds[0]) }),
+            relationships: viewerCount('viewer.lens.relationship', touching)
+          });
+        }
+        updateTrigger();
+        renderKinds();
+        dockPanel(byId);
+        if (options.updateUrl !== false) updateHash();
+        return true;
+      }
+      function prepareForLens() {
+        clearLegendPreview();
+        if (Archify.focus && typeof Archify.focus.clear === 'function') {
+          Archify.focus.clear({ updateUrl: false, preserveView: true });
+        }
+        if (Archify.routeProbe && typeof Archify.routeProbe.clear === 'function') {
+          Archify.routeProbe.clear({ updateUrl: false, restoreFocus: false });
+        }
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        if (Archify.intentTrace && typeof Archify.intentTrace.clear === 'function') {
+          Archify.intentTrace.clear({ announce: false });
+        }
+      }
+      function select(kind, options) {
+        options = options || {};
+        clearLegendPreview();
+        var exists = collectKinds().some(function (entry) { return entry.id === kind; });
+        if (!exists) return false;
+        var index = selectedKinds.indexOf(kind);
+        if (index >= 0) selectedKinds.splice(index, 1);
+        else {
+          if (selectedKinds.length >= 2) return false;
+          if (!selectedKinds.length) prepareForLens();
+          selectedKinds.push(kind);
+        }
+        return applySelection(options);
+      }
+      function close(options) {
+        options = options || {};
+        panel.hidden = true;
+        trigger.setAttribute('aria-expanded', 'false');
+        updateTrigger();
+        if (options.restoreFocus !== false && lensOpener && typeof lensOpener.focus === 'function') lensOpener.focus();
+        return false;
+      }
+      function open(options) {
+        options = options || {};
+        if (html.getAttribute('data-embed') === 'true') return false;
+        lensOpener = options.opener || trigger;
+        if (Archify.exportMenu && Archify.exportMenu.isOpen()) Archify.exportMenu.close(false);
+        if (Archify.finder && Archify.finder.isOpen()) Archify.finder.close({ restoreFocus: false });
+        if (Archify.radar && Archify.radar.isOpen()) Archify.radar.close({ restoreFocus: false });
+        if (Archify.guide && Archify.guide.isOpen()) Archify.guide.close({ restoreFocus: false });
+        renderKinds();
+        panel.hidden = false;
+        trigger.setAttribute('aria-expanded', 'true');
+        updateTrigger();
+        requestAnimationFrame(function () {
+          dockPanel(nodesById());
+          var activeButton = kindsRoot.querySelector('[aria-pressed="true"]');
+          var firstButton = activeButton || kindsRoot.querySelector('button:not(:disabled)');
+          if (firstButton) firstButton.focus();
+        });
+        return true;
+      }
+      function toggle() { return panel.hidden ? open({ opener: trigger }) : close(); }
+      function clear(options) {
+        options = options || {};
+        selectedKinds = [];
+        cleanSvgState();
+        panel.removeAttribute('data-dock-side');
+        updateTrigger();
+        renderKinds();
+        status.textContent = viewerText('viewer.lens.choose');
+        if (options.updateUrl !== false) updateHash();
+        if (options.preserveView !== true && Archify.view && typeof Archify.view.reset === 'function') {
+          Archify.view.reset({ automatic: true });
+        }
+        if (options.closePanel === true) close({ restoreFocus: false });
+        return false;
+      }
+      function fallbackCopy(value) {
+        var field = document.createElement('textarea');
+        field.value = value;
+        field.setAttribute('readonly', '');
+        field.style.position = 'fixed';
+        field.style.opacity = '0';
+        document.body.appendChild(field);
+        field.select();
+        var copied = false;
+        try { copied = document.execCommand('copy'); } catch (_) {}
+        field.remove();
+        return copied;
+      }
+      function copyLink() {
+        if (!selectedKinds.length) return Promise.resolve(false);
+        var value = location.href.replace(/#.*$/, '') + '#lens=' + selectedKinds.map(encodeURIComponent).join('~');
+        var copy = navigator.clipboard && typeof navigator.clipboard.writeText === 'function'
+          ? navigator.clipboard.writeText(value).then(function () { return true; }).catch(function () { return fallbackCopy(value); })
+          : Promise.resolve(fallbackCopy(value));
+        return copy.then(function (copied) {
+          copyBtn.textContent = viewerText(copied ? 'viewer.common.copied' : 'viewer.common.copyFailed');
+          window.setTimeout(function () { copyBtn.textContent = viewerText('viewer.common.copyLink'); }, 1600);
+          return copied;
+        });
+      }
+      function syncFromHash() {
+        try {
+          var params = new URLSearchParams(location.hash.replace(/^#/, ''));
+          var value = params.get('lens');
+          if (!value) {
+            if (selectedKinds.length) clear({ updateUrl: false, preserveView: true });
+            return;
+          }
+          var available = collectKinds().map(function (kind) { return kind.id; });
+          var requested = value.split('~').filter(function (kind, index, list) {
+            return available.indexOf(kind) >= 0 && list.indexOf(kind) === index;
+          }).slice(0, 2);
+          if (!requested.length) return;
+          prepareForLens();
+          selectedKinds = requested;
+          applySelection({ updateUrl: false });
+        } catch (_) {}
+      }
+
+      trigger.addEventListener('click', toggle);
+      if (decorateLegendBridge()) {
+        legendBridge.addEventListener('click', function (event) {
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (entry) activateLegendEntry(entry);
+        });
+        legendBridge.addEventListener('pointerover', function (event) {
+          if (event.pointerType === 'touch' || (finePointerQuery && !finePointerQuery.matches)) return;
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (!entry || (event.relatedTarget && entry.contains(event.relatedTarget))) return;
+          hoveredLegendEntry = entry;
+          syncLegendPreview();
+        });
+        legendBridge.addEventListener('pointerout', function (event) {
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (!entry || (event.relatedTarget && entry.contains(event.relatedTarget))) return;
+          if (hoveredLegendEntry === entry) hoveredLegendEntry = null;
+          syncLegendPreview();
+        });
+        legendBridge.addEventListener('focusin', function (event) {
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (!entry) return;
+          focusedLegendEntry = entry;
+          legendEntries.forEach(function (candidate) {
+            candidate.setAttribute('tabindex', candidate === entry ? '0' : '-1');
+          });
+          syncLegendPreview();
+        });
+        legendBridge.addEventListener('focusout', function (event) {
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (!entry || (event.relatedTarget && entry.contains(event.relatedTarget))) return;
+          if (focusedLegendEntry === entry) focusedLegendEntry = null;
+          syncLegendPreview();
+        });
+        legendBridge.addEventListener('keydown', function (event) {
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (!entry) return;
+          if (event.key === 'Enter' || event.key === ' ') {
+            event.preventDefault();
+            activateLegendEntry(entry);
+            return;
+          }
+          var index = legendEntries.indexOf(entry);
+          var next = null;
+          if (event.key === 'ArrowRight') next = (index + 1) % legendEntries.length;
+          else if (event.key === 'ArrowLeft') next = (index - 1 + legendEntries.length) % legendEntries.length;
+          else if (event.key === 'Home') next = 0;
+          else if (event.key === 'End') next = legendEntries.length - 1;
+          if (next === null) return;
+          event.preventDefault();
+          legendEntries.forEach(function (candidate, candidateIndex) {
+            candidate.setAttribute('tabindex', candidateIndex === next ? '0' : '-1');
+          });
+          legendEntries[next].focus();
+        });
+      }
+      closeBtn.addEventListener('click', function () { close(); });
+      clearBtn.addEventListener('click', function () { clear({ preserveView: true }); });
+      copyBtn.addEventListener('click', copyLink);
+      kindsRoot.addEventListener('click', function (event) {
+        var button = event.target.closest('[data-kind]');
+        if (!button || button.disabled) return;
+        select(button.getAttribute('data-kind'));
+      });
+      kindsRoot.addEventListener('keydown', function (event) {
+        var buttons = Array.prototype.slice.call(kindsRoot.querySelectorAll('button:not(:disabled)'));
+        var index = buttons.indexOf(document.activeElement);
+        var next = null;
+        if (index >= 0 && (event.key === 'ArrowRight' || event.key === 'ArrowDown')) next = (index + 1) % buttons.length;
+        else if (index >= 0 && (event.key === 'ArrowLeft' || event.key === 'ArrowUp')) next = (index - 1 + buttons.length) % buttons.length;
+        else if (event.key === 'Home' && buttons.length) next = 0;
+        else if (event.key === 'End' && buttons.length) next = buttons.length - 1;
+        if (next !== null) { event.preventDefault(); buttons[next].focus(); }
+      });
+      panel.addEventListener('keydown', function (event) {
+        if (event.key !== 'Escape') return;
+        event.preventDefault();
+        event.stopPropagation();
+        close();
+      });
+      document.addEventListener('click', function (event) {
+        var eventPath = typeof event.composedPath === 'function' ? event.composedPath() : [];
+        var clickedInside = eventPath.indexOf(panel) >= 0 || panel.contains(event.target);
+        var clickedLauncher = event.target === trigger || legendEntries.some(function (entry) {
+          return event.target === entry || entry.contains(event.target);
+        });
+        if (!panel.hidden && !clickedInside && !clickedLauncher) close({ restoreFocus: false });
+      });
+      window.addEventListener('hashchange', syncFromHash);
+      window.addEventListener('resize', function () {
+        if (!panel.hidden && selectedKinds.length) dockPanel(nodesById());
+        layoutLegendBridge();
+      });
+      renderKinds();
+      syncFromHash();
+
+      return {
+        open: open,
+        close: close,
+        toggle: toggle,
+        clear: clear,
+        clearPreview: clearLegendPreview,
+        select: select,
+        copyLink: copyLink,
+        isOpen: function () { return !panel.hidden; },
+        active: function () { return selectedKinds.length ? selectedKinds.slice() : null; },
+        kinds: function () { return collectKinds().map(function (kind) { return { id: kind.id, count: kind.nodes.length }; }); }
+      };
+    })();
+
+    /* ============================================================
+       Diagram Guide — a factual command deck over existing interactions.
+       Counts come from compiled semantics; actions delegate to Finder, Route
+       Probe, Semantic Radar, Semantic Lens, Story Trail, Presentation, theme, export, and
+       camera without adding a second command implementation or SVG state.
+       ============================================================ */
+    Archify.guide = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector(':scope > svg');
+      var trigger = document.getElementById('btn-diagram-guide');
+      var panel = document.getElementById('diagram-guide');
+      var closeBtn = document.getElementById('diagram-guide-close');
+      var stats = document.getElementById('diagram-guide-stats');
+      var actions = document.getElementById('diagram-guide-actions');
+      var feedback = document.getElementById('diagram-guide-feedback');
+      var storyBtn = actions.querySelector('[data-guide-action="story"]');
+      var storyCopy = document.getElementById('diagram-guide-story-copy');
+      var routePanel = document.getElementById('route-probe');
+
+      function viewCount() {
+        return Archify.guidedViews && Number(Archify.guidedViews.count) || 0;
+      }
+      function relationshipCount() {
+        var seen = {};
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'), function (edge) {
+          var key = edge.getAttribute('data-edge-key') || [
+            edge.getAttribute('data-edge-from'),
+            edge.getAttribute('data-edge-to'),
+            edge.getAttribute('data-edge-label') || ''
+          ].join('\u0000');
+          seen[key] = true;
+        });
+        return Object.keys(seen).length;
+      }
+      function renderFacts() {
+        var nodes = svg.querySelectorAll('[data-node-id]').length;
+        var relationships = relationshipCount();
+        var views = viewCount();
+        stats.textContent = viewerText('viewer.guide.facts', {
+          nodes: viewerCount('viewer.guide.fact.node', nodes),
+          relationships: viewerCount('viewer.guide.fact.relationship', relationships),
+          views: viewerCount('viewer.guide.fact.view', views)
+        });
+        storyBtn.disabled = views === 0;
+        storyBtn.setAttribute('aria-disabled', views === 0 ? 'true' : 'false');
+        storyCopy.textContent = views
+          ? viewerCount('viewer.guide.story.available', views)
+          : viewerText('viewer.guide.story.unavailable');
+      }
+      function actionButtons() {
+        return Array.prototype.slice.call(actions.querySelectorAll('.diagram-guide-action:not(:disabled)'));
+      }
+      function close(options) {
+        options = options || {};
+        panel.hidden = true;
+        html.removeAttribute('data-guide-open');
+        routePanel.removeAttribute('data-guide-open');
+        trigger.setAttribute('aria-expanded', 'false');
+        trigger.setAttribute('aria-label', viewerText('viewer.guide.open'));
+        feedback.textContent = '';
+        if (options.restoreFocus !== false) trigger.focus();
+        return false;
+      }
+      function open() {
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (Archify.exportMenu && Archify.exportMenu.isOpen()) Archify.exportMenu.close(false);
+        if (Archify.finder && Archify.finder.isOpen()) Archify.finder.close({ restoreFocus: false });
+        if (Archify.radar && Archify.radar.isOpen()) Archify.radar.close({ restoreFocus: false });
+        if (Archify.semanticLens && Archify.semanticLens.isOpen()) Archify.semanticLens.close({ restoreFocus: false });
+        if (Archify.guidedViews && Archify.guidedViews.isPlaying && Archify.guidedViews.isPlaying()) {
+          Archify.guidedViews.pause();
+        }
+        if (Archify.routeProbe && Archify.routeProbe.isJourneyPlaying && Archify.routeProbe.isJourneyPlaying()) {
+          Archify.routeProbe.pauseJourney({ preserveElapsed: true, reason: 'guide' });
+        }
+        renderFacts();
+        panel.hidden = false;
+        html.setAttribute('data-guide-open', 'true');
+        routePanel.setAttribute('data-guide-open', 'true');
+        trigger.setAttribute('aria-expanded', 'true');
+        trigger.setAttribute('aria-label', viewerText('viewer.guide.close'));
+        feedback.textContent = '';
+        requestAnimationFrame(function () {
+          var first = actionButtons()[0];
+          if (first) first.focus();
+        });
+        return true;
+      }
+      function toggle() { return panel.hidden ? open() : close(); }
+      function execute(action) {
+        feedback.textContent = '';
+        if (action === 'story' && !viewCount()) {
+          feedback.textContent = viewerText('viewer.guide.noStory');
+          return false;
+        }
+        close({ restoreFocus: false });
+        if (action === 'find') return Archify.finder.open();
+        if (action === 'route') return Archify.routeProbe.begin({ focusNode: true });
+        if (action === 'map') return Archify.radar.open();
+        if (action === 'lens') return Archify.semanticLens.open();
+        if (action === 'story') return Archify.guidedViews.play();
+        if (action === 'present') return Archify.presentation.enter();
+        if (action === 'export') return Archify.exportMenu.open();
+        if (action === 'theme') return Archify.theme.toggle();
+        if (action === 'preset') return Archify.preset.cycle();
+        if (action === 'reset') return Archify.view.reset();
+        if (action === 'zoom-in') return Archify.view.zoomIn();
+        if (action === 'zoom-out') return Archify.view.zoomOut();
+        return false;
+      }
+      function actionForKey(key) {
+        return {
+          '/': 'find',
+          r: 'route',
+          m: 'map',
+          l: 'lens',
+          p: 'story',
+          f: 'present',
+          e: 'export',
+          t: 'theme',
+          s: 'preset',
+          '0': 'reset',
+          '+': 'zoom-in',
+          '=': 'zoom-in',
+          '-': 'zoom-out'
+        }[key] || null;
+      }
+
+      trigger.addEventListener('click', toggle);
+      closeBtn.addEventListener('click', function () { close(); });
+      actions.addEventListener('click', function (event) {
+        var button = event.target.closest('[data-guide-action]');
+        if (!button || button.disabled) return;
+        event.stopPropagation();
+        execute(button.getAttribute('data-guide-action'));
+      });
+      panel.addEventListener('keydown', function (event) {
+        if (event.key === 'Escape' || event.key === '?') {
+          event.preventDefault();
+          event.stopPropagation();
+          close();
+          return;
+        }
+        var buttons = actionButtons();
+        var index = buttons.indexOf(document.activeElement);
+        var next = null;
+        if (index >= 0 && event.key === 'ArrowRight') next = (index + 1) % buttons.length;
+        else if (index >= 0 && event.key === 'ArrowDown') next = (index + 1) % buttons.length;
+        else if (index >= 0 && event.key === 'ArrowLeft') next = (index - 1 + buttons.length) % buttons.length;
+        else if (index >= 0 && event.key === 'ArrowUp') next = (index - 1 + buttons.length) % buttons.length;
+        else if (event.key === 'Home' && buttons.length) next = 0;
+        else if (event.key === 'End' && buttons.length) next = buttons.length - 1;
+        if (next !== null) {
+          event.preventDefault();
+          event.stopPropagation();
+          buttons[next].focus();
+          return;
+        }
+        var action = actionForKey(event.key.length === 1 ? event.key.toLowerCase() : event.key);
+        if (!action) return;
+        event.preventDefault();
+        event.stopPropagation();
+        execute(action);
+      });
+      document.addEventListener('click', function (event) {
+        if (!panel.hidden && !panel.contains(event.target) && event.target !== trigger) close({ restoreFocus: false });
+      });
+
+      renderFacts();
+      return {
+        open: open,
+        close: close,
+        toggle: toggle,
+        execute: execute,
+        isOpen: function () { return !panel.hidden; },
+        facts: function () {
+          return {
+            nodes: svg.querySelectorAll('[data-node-id]').length,
+            relationships: relationshipCount(),
+            views: viewCount()
+          };
+        }
+      };
+    })();
+
+    /* ============================================================
+       Global keyboard shortcuts
+       ? -> open Diagram Guide
+       T -> toggle theme
+       S -> cycle visual style
+       E -> open export menu
+         F -> toggle presentation stage
+         M -> toggle Semantic Radar
+         L -> toggle Semantic Lens
+         R -> start/clear Route Probe
+         / -> open node finder or the active route endpoint picker
+         + / - -> zoom, 0 -> reset view
+         Escape -> clear temporary trace/focus/view first, then exit presentation
+       Ignored when focus is inside an input/textarea/contenteditable.
+       ============================================================ */
+    document.addEventListener('keydown', function (e) {
+      if (e.metaKey || e.ctrlKey || e.altKey) return;
+      if (e.defaultPrevented) return;
+      var t = e.target;
+      if (t && (t.tagName === 'INPUT' || t.tagName === 'TEXTAREA' || t.isContentEditable)) return;
+      if (Archify.preset && Archify.preset.isOpen() && e.key !== 'Escape' && e.key !== 's' && e.key !== 'S') {
+        Archify.preset.close(false);
+      }
+      if (e.key === '?') {
+        e.preventDefault();
+        Archify.guide.toggle();
+      } else if (e.key === '/') {
+        e.preventDefault();
+        Archify.finder.open();
+      } else if (e.key === 't' || e.key === 'T') {
+        e.preventDefault();
+        Archify.theme.toggle();
+      } else if (e.key === 's' || e.key === 'S') {
+        e.preventDefault();
+        Archify.preset.cycle();
+      } else if (e.key === 'e' || e.key === 'E') {
+        e.preventDefault();
+        if (!Archify.exportMenu.isOpen()) Archify.exportMenu.open();
+      } else if (e.key === 'f' || e.key === 'F') {
+        e.preventDefault();
+        Archify.presentation.toggle();
+      } else if (e.key === 'm' || e.key === 'M') {
+        e.preventDefault();
+        Archify.radar.toggle();
+      } else if (e.key === 'l' || e.key === 'L') {
+        e.preventDefault();
+        Archify.semanticLens.toggle();
+      } else if (e.key === 'r' || e.key === 'R') {
+        e.preventDefault();
+        Archify.routeProbe.toggle({ focusNode: true });
+      } else if (e.key === '+' || e.key === '=') {
+        e.preventDefault();
+        Archify.view.zoomIn();
+      } else if (e.key === '-') {
+        e.preventDefault();
+        Archify.view.zoomOut();
+      } else if (e.key === '0') {
+        e.preventDefault();
+        Archify.view.reset();
+      } else if (e.key === 'Escape' && Archify.preset.isOpen()) {
+        e.preventDefault();
+        Archify.preset.close(true);
+      } else if (e.key === 'Escape' && Archify.semanticLens.isOpen()) {
+        e.preventDefault();
+        Archify.semanticLens.close({ restoreFocus: true });
+      } else if (e.key === 'Escape' && Archify.semanticLens.active()) {
+        e.preventDefault();
+        Archify.semanticLens.clear({ preserveView: true });
+      } else if (e.key === 'Escape' && Archify.guide.isOpen()) {
+        e.preventDefault();
+        Archify.guide.close({ restoreFocus: true });
+      } else if (e.key === 'Escape' && Archify.radar.isOpen()) {
+        e.preventDefault();
+        Archify.radar.close({ restoreFocus: true });
+      } else if (e.key === 'Escape' && Archify.routeProbe.active()) {
+        e.preventDefault();
+        Archify.routeProbe.escape({ restoreFocus: true });
+      } else if (e.key === 'Escape' && Archify.intentTrace.active()) {
+        e.preventDefault();
+        Archify.intentTrace.clear();
+      } else if (e.key === 'Escape' && Archify.focus.active()) {
+        e.preventDefault();
+        Archify.focus.clear({ restoreFocus: true });
+      } else if (e.key === 'Escape' && Archify.presentation.active()) {
+        e.preventDefault();
+        Archify.presentation.exit();
+      }
+    });
+  </script>
+</body>
+</html>
diff --git a/docs/architecture/windup-system.architecture.json b/docs/architecture/windup-system.architecture.json
new file mode 100644
index 00000000..703af5b9
--- /dev/null
+++ b/docs/architecture/windup-system.architecture.json
@@ -0,0 +1,204 @@
+{
+  "schema_version": 1,
+  "diagram_type": "architecture",
+  "meta": {
+    "title": "Windup 整体架构",
+    "locale": "zh-CN",
+    "quality_profile": "showcase",
+    "repository": {
+      "url": "https://github.com/xiaocheny214/DireSoul.git",
+      "revision": "ed500be30482ef8316f6f655bf0f06d19f1cce63"
+    },
+    "views": [
+      {
+        "id": "product-request",
+        "label": "同步产品路径",
+        "focus": ["workbench", "edge", "webapi", "pg"],
+        "note": "浏览器经 Nginx 进入 FastAPI，JWT 鉴权后读写项目、角色、流程与积分。"
+      },
+      {
+        "id": "async-work",
+        "label": "异步执行",
+        "focus": ["mq", "worker", "aigw", "models"],
+        "note": "Worker 消费邮件与生成 Stream，生成路径经进程内 AI Gateway 调用上游。"
+      },
+      {
+        "id": "identity-media",
+        "label": "登录与媒资",
+        "focus": ["webapi", "mq", "worker", "mail", "kodo"],
+        "note": "验证码经 Resend 发出；参考图与生成产物落到七牛 Kodo。"
+      }
+    ]
+  },
+  "components": [
+    {
+      "id": "workbench",
+      "type": "frontend",
+      "label": "React 工作台",
+      "sublabel": "项目 / 流程 / 试玩",
+      "brand": "react",
+      "pos": [40, 300],
+      "size": [124, 62],
+      "sources": [
+        { "path": "frontend/src/app/app.tsx", "line": 35, "label": "路由表" },
+        { "path": "frontend/src/main.tsx", "line": 10, "label": "React 入口" }
+      ]
+    },
+    {
+      "id": "edge",
+      "type": "cloud",
+      "label": "Nginx",
+      "sublabel": "静态 + /api",
+      "pos": [224, 300],
+      "size": [124, 62],
+      "sources": [
+        { "path": "frontend/README.md", "line": 26, "label": "宿主机 Nginx" },
+        { "path": "docker-compose.yml", "line": 61, "label": "站点目录" }
+      ]
+    },
+    {
+      "id": "webapi",
+      "type": "backend",
+      "label": "FastAPI",
+      "sublabel": "鉴权 · 资产 · 生成",
+      "tag": "JWT",
+      "brand": "fastapi",
+      "pos": [408, 300],
+      "size": [124, 62],
+      "sources": [
+        { "path": "backend/packages/app/src/windup_app/bootstrap/app.py", "line": 138, "label": "create_app" },
+        { "path": "backend/packages/app/src/windup_app/web/api/auth.py", "line": 29, "label": "/auth" },
+        { "path": "backend/packages/app/src/windup_app/web/api/generation.py", "line": 63, "label": "/generation" }
+      ]
+    },
+    {
+      "id": "pg",
+      "type": "database",
+      "label": "PostgreSQL",
+      "sublabel": "用户 / 资产 / 任务",
+      "brand": "postgresql",
+      "pos": [600, 128],
+      "size": [132, 62],
+      "sources": [
+        { "path": "docker-compose.db.yml", "line": 56, "label": "windup-postgres" },
+        { "path": "backend/packages/framework/src/windup_framework/db/__init__.py", "line": 4, "label": "SessionLocal" }
+      ]
+    },
+    {
+      "id": "mail",
+      "type": "external",
+      "label": "Resend",
+      "sublabel": "验证码邮件",
+      "pos": [792, 128],
+      "size": [124, 62],
+      "sources": [
+        { "path": "backend/packages/framework/src/windup_framework/providers/email.py", "line": 24, "label": "ResendEmailProvider" }
+      ]
+    },
+    {
+      "id": "kodo",
+      "type": "cloud",
+      "label": "七牛 Kodo",
+      "sublabel": "对象存储",
+      "pos": [40, 488],
+      "size": [124, 62],
+      "sources": [
+        { "path": "backend/packages/app/src/windup_app/server/media/service.py", "line": 17, "label": "ObjectStorageMediaService" }
+      ]
+    },
+    {
+      "id": "mq",
+      "type": "messagebus",
+      "label": "Redis Stream",
+      "sublabel": "邮件 / 生成 / SSE",
+      "brand": "redis",
+      "pos": [600, 488],
+      "size": [132, 62],
+      "sources": [
+        { "path": "backend/packages/app/src/windup_app/server/mq/catalog.py", "line": 33, "label": "EMAIL_STREAM" },
+        { "path": "backend/packages/framework/src/windup_framework/sse/bridge.py", "line": 15, "label": "SSE channel" }
+      ]
+    },
+    {
+      "id": "worker",
+      "type": "backend",
+      "label": "Worker",
+      "sublabel": "邮件 · 生成",
+      "pos": [792, 488],
+      "size": [124, 62],
+      "sources": [
+        { "path": "docker-compose.yml", "line": 26, "label": "worker 服务" },
+        { "path": "backend/packages/app/src/windup_app/bootstrap/worker.py", "line": 55, "label": "main" },
+        { "path": "backend/packages/app/src/windup_app/worker/handlers.py", "line": 52, "label": "验证码 handler" }
+      ]
+    },
+    {
+      "id": "aigw",
+      "type": "backend",
+      "label": "AI Gateway",
+      "sublabel": "Chat · Image · Video",
+      "pos": [976, 488],
+      "size": [132, 62],
+      "sources": [
+        { "path": "backend/packages/framework/src/windup_framework/gateway/__init__.py", "line": 1, "label": "Gateway 导出" },
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+        "宿主机 Nginx 提供 SPA 并反代 /api",
+        "FastAPI 挂载鉴权、项目、角色、流程、生成、媒资、积分与 /ai"
+      ]
+    },
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+      "dot": "emerald",
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+        "Worker 同时消费邮件 Stream 与图片/动作生成 Stream",
+        "生成经进程内 ImageGateway / VideoGateway 调上游",
+        "进度经 Redis Pub/Sub 推 SSE 回浏览器"
+      ]
+    },
+    {
+      "dot": "amber",
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+        "注册/登录验证码经 Resend 发出，验证码本身存在 Redis",
+        "参考图与生成产物 put_data 到七牛 Kodo",
+        "用户、资产、任务与积分账本落在 PostgreSQL"
+      ]
+    }
+  ]
+}
diff --git a/docs/architecture/windup-system.html b/docs/architecture/windup-system.html
new file mode 100644
index 00000000..5bdce86c
--- /dev/null
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@@ -0,0 +1,14899 @@
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+      padding: 0.55rem 0.75rem 0.65rem;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 42%, var(--toolbar-border));
+      border-radius: 0.75rem;
+      background:
+        linear-gradient(115deg, color-mix(in srgb, var(--frontend-fill) 52%, transparent), transparent 45%),
+        color-mix(in srgb, var(--toolbar-menu-bg) 92%, transparent);
+      color: var(--toolbar-text);
+      box-shadow: 0 14px 42px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.045);
+      backdrop-filter: blur(16px);
+      pointer-events: none;
+      animation: archify-share-cue-enter 280ms cubic-bezier(0.22, 1, 0.36, 1) both;
+    }
+    html[data-preset="blueprint"] .share-chapter-cue {
+      border-radius: 0.2rem;
+      background:
+        linear-gradient(90deg, color-mix(in srgb, var(--frontend-fill) 46%, transparent), transparent 36%),
+        var(--toolbar-menu-bg);
+      box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2);
+      backdrop-filter: none;
+    }
+    html[data-preset="editorial"] .share-chapter-cue {
+      border-color: var(--panel-border);
+      background:
+        linear-gradient(90deg, color-mix(in srgb, var(--security-fill) 58%, transparent), transparent 42%),
+        var(--toolbar-menu-bg);
+      box-shadow: 0 10px 30px color-mix(in srgb, #000 18%, transparent);
+      backdrop-filter: none;
+    }
+    html[data-preset="editorial"] .share-chapter-state { color: var(--arrow-emphasis); }
+    html[data-preset="editorial"] .share-chapter-state::before {
+      border-radius: 0;
+      box-shadow: none;
+      transform: rotate(45deg) scale(0.8);
+    }
+    .share-chapter-index {
+      display: grid;
+      gap: 0.12rem;
+      min-width: 5rem;
+      padding-right: 0.75rem;
+      border-right: 1px solid var(--toolbar-border);
+    }
+    .share-chapter-state {
+      display: inline-flex;
+      align-items: center;
+      gap: 0.36rem;
+      color: var(--frontend-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.14em;
+      text-transform: uppercase;
+    }
+    .share-chapter-state::before {
+      width: 0.38rem;
+      height: 0.38rem;
+      border-radius: 50%;
+      background: currentColor;
+      box-shadow: 0 0 10px currentColor;
+      content: '';
+    }
+    .share-chapter-cue[data-state="playing"] .share-chapter-state::before {
+      animation: archify-share-cue-pulse 1.15s ease-in-out infinite;
+    }
+    .share-chapter-count {
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      font-weight: 700;
+      letter-spacing: 0.08em;
+      text-transform: uppercase;
+    }
+    .share-chapter-copy { min-width: 0; }
+    .share-chapter-copy strong,
+    .share-chapter-copy small,
+    .share-chapter-route {
+      display: block;
+      overflow: hidden;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .share-chapter-copy strong {
+      color: var(--toolbar-text);
+      font-size: 0.6875rem;
+      line-height: 1.35;
+    }
+    .share-chapter-copy small {
+      margin-top: 0.08rem;
+      color: var(--text-muted);
+      font-size: 0.5rem;
+      line-height: 1.35;
+    }
+    .share-chapter-route {
+      color: color-mix(in srgb, var(--frontend-stroke) 76%, var(--text-muted));
+      font-size: 0.5625rem;
+      font-weight: 650;
+      letter-spacing: 0.015em;
+      text-align: right;
+    }
+    .share-chapter-progress {
+      position: absolute;
+      right: 0;
+      bottom: 0;
+      left: 0;
+      height: 2px;
+      overflow: hidden;
+      background: color-mix(in srgb, var(--toolbar-border) 72%, transparent);
+    }
+    .share-chapter-progress span {
+      display: block;
+      width: 100%;
+      height: 100%;
+      background: linear-gradient(90deg, var(--frontend-stroke), var(--database-stroke));
+      box-shadow: 0 0 12px var(--frontend-stroke);
+      transform: scaleX(0);
+      transform-origin: left center;
+    }
+
+    /* Presentation Stage is a viewer-only layer: it gives the live diagram
+       the viewport while keeping guided views, theme, focus, and exports real.
+       Embed mode wins when both query parameters are present. */
+    html[data-present="true"]:not([data-embed="true"]) body {
+      height: 100dvh;
+      min-height: 0;
+      padding: 1rem;
+      overflow: hidden;
+    }
+    html[data-present="true"]:not([data-embed="true"]) .container {
+      display: flex;
+      flex-direction: column;
+      gap: 0.75rem;
+      width: 100%;
+      max-width: none;
+      height: calc(100dvh - 2rem);
+    }
+    html[data-present="true"]:not([data-embed="true"]) .header {
+      flex: none;
+      min-width: 0;
+      margin: 0;
+      padding-right: 23rem;
+    }
+    html[data-present="true"]:not([data-embed="true"]) .header-row { margin-bottom: 0.25rem; }
+    html[data-present="true"]:not([data-embed="true"]) .subtitle {
+      overflow: hidden;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    html[data-present="true"]:not([data-embed="true"]) .guided-views {
+      flex: none;
+      margin-bottom: 0;
+    }
+    html[data-present="true"]:not([data-embed="true"]) .diagram-container {
+      display: flex;
+      flex: 1 1 auto;
+      align-items: center;
+      justify-content: center;
+      min-height: 0;
+      padding: 0.75rem;
+      padding-bottom: calc(0.75rem + var(--archify-nav-reserve));
+    }
+    html[data-present="true"]:not([data-embed="true"]) .diagram-container > svg {
+      flex: 1 1 auto;
+      height: 100%;
+      min-height: 0;
+      width: 100%;
+      min-width: 0;
+    }
+    html[data-present="true"]:not([data-embed="true"]) .cards { display: none; }
+    html[data-present="true"]:not([data-embed="true"]) #btn-present {
+      border-color: var(--frontend-stroke);
+      color: var(--frontend-stroke);
+    }
+
+    /* The reader owns only the outer scale. Wide diagrams keep one authored
+       SVG/viewBox while the runtime chooses a desktop width from the actual
+       vertical budget. This avoids device-specific files and breakpoint
+       jumps between a laptop and a tall monitor. */
+    .container {
+      width: 100%;
+      max-width: var(--archify-reader-width, 1440px);
+      margin: 0 auto;
+    }
+    @media (min-width: 768px) and (max-height: 920px) {
+      .header { margin-bottom: 1rem; }
+      .diagram-container { padding: 1rem; }
+      .cards { margin-top: 1rem; }
+      .card { padding: 1rem; }
+    }
+
+    .header { margin-bottom: 1.5rem; padding-right: 29.5rem; }
+
+    html[data-preset="signal-flow"] .header,
+    html[data-preset="blueprint"] .header,
+    html[data-preset="editorial"] .header { padding-right: 29.5rem; }
+
+    .header-row {
+      display: flex;
+      align-items: center;
+      gap: 1rem;
+      margin-bottom: 0.5rem;
+    }
+
+    .pulse-dot {
+      width: 12px;
+      height: 12px;
+      background: var(--frontend-stroke);
+      border-radius: 50%;
+      animation: none;
+    }
+
+    html[data-motion-capable="true"] .pulse-dot { animation: pulse 2s infinite; }
+
+    @keyframes pulse {
+      0%, 100% { opacity: 1; }
+      50% { opacity: 0.5; }
+    }
+
+    h1 {
+      font-size: 1.5rem;
+      font-weight: 700;
+      letter-spacing: -0.025em;
+    }
+
+    .subtitle {
+      color: var(--text-muted);
+      font-size: 0.875rem;
+      margin-left: 1.75rem;
+    }
+
+    html[data-preset="signal-flow"] .header-row::after {
+      content: attr(data-preset-badge-signal-flow);
+      margin-left: auto;
+      color: var(--frontend-stroke);
+      border: 1px solid var(--frontend-stroke);
+      border-radius: 999px;
+      padding: 0.28rem 0.6rem;
+      font-size: 0.625rem;
+      letter-spacing: 0.12em;
+      opacity: 0.82;
+      box-shadow: 0 0 20px rgba(34, 211, 238, 0.12);
+      white-space: nowrap;
+    }
+
+    html[data-preset="blueprint"] .pulse-dot {
+      width: 10px;
+      height: 10px;
+      border: 1px solid var(--frontend-stroke);
+      border-radius: 1px;
+      background: transparent;
+      box-shadow: inset 0 0 0 2px var(--bg);
+      transform: rotate(45deg);
+      animation: none;
+    }
+    html[data-preset="blueprint"] .header-row::after {
+      content: attr(data-preset-badge-blueprint);
+      margin-left: auto;
+      padding: 0.28rem 0.55rem;
+      border-top: 1px solid var(--frontend-stroke);
+      border-bottom: 1px solid var(--frontend-stroke);
+      color: var(--frontend-stroke);
+      font-size: 0.5625rem;
+      font-weight: 700;
+      letter-spacing: 0.14em;
+      white-space: nowrap;
+    }
+
+    html[data-preset="editorial"] h1,
+    html[data-preset="editorial"] .card h3 {
+      font-family: Georgia, 'Times New Roman', 'Songti SC', STSong, serif;
+      letter-spacing: -0.02em;
+    }
+    html[data-preset="editorial"] h1 { font-size: 1.72rem; font-weight: 600; }
+    html[data-preset="editorial"] .pulse-dot {
+      width: 9px;
+      height: 9px;
+      border: 1px solid var(--arrow-emphasis);
+      border-radius: 0;
+      background: var(--arrow-emphasis);
+      box-shadow: 0 0 0 3px color-mix(in srgb, var(--arrow-emphasis) 14%, transparent);
+      transform: rotate(45deg);
+      animation: none;
+    }
+    html[data-preset="editorial"] .header-row::after {
+      content: attr(data-preset-badge-editorial);
+      margin-left: auto;
+      padding: 0.32rem 0 0.24rem;
+      border-bottom: 2px solid var(--arrow-emphasis);
+      color: var(--arrow-emphasis);
+      font-family: Georgia, 'Times New Roman', serif;
+      font-size: 0.625rem;
+      font-style: italic;
+      font-weight: 600;
+      letter-spacing: 0.08em;
+      white-space: nowrap;
+    }
+
+    .diagram-container {
+      --archify-nav-reserve: 0px;
+      background: var(--panel);
+      border-radius: 1rem;
+      border: 1px solid var(--panel-border);
+      padding: 1.5rem;
+      padding-bottom: calc(1.5rem + var(--archify-nav-reserve));
+      overflow: hidden;
+      position: relative;
+    }
+
+    html[data-preset="signal-flow"] .diagram-container {
+      position: relative;
+      overflow: hidden;
+      background: linear-gradient(180deg, rgba(8, 20, 38, 0.82), rgba(3, 8, 18, 0.94));
+      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04), 0 28px 80px rgba(0, 0, 0, 0.34);
+    }
+    html[data-preset="signal-flow"][data-theme="light"] .diagram-container {
+      background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(237, 246, 250, 0.94));
+      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72), 0 24px 60px rgba(45, 78, 99, 0.12);
+    }
+    html[data-preset="blueprint"] .diagram-container {
+      border-color: var(--panel-border);
+      border-radius: 0.35rem;
+      background: var(--panel);
+      box-shadow:
+        inset 0 0 0 1px color-mix(in srgb, var(--panel-border) 34%, transparent),
+        0 18px 48px rgba(0, 0, 0, 0.16);
+    }
+    html[data-preset="blueprint"] .diagram-container::after {
+      content: "";
+      position: absolute;
+      z-index: 10;
+      inset: 0.7rem;
+      pointer-events: none;
+      background:
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) left top / 1.35rem 1px no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) left top / 1px 1.35rem no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) right top / 1.35rem 1px no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) right top / 1px 1.35rem no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) left bottom / 1.35rem 1px no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) left bottom / 1px 1.35rem no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) right bottom / 1.35rem 1px no-repeat,
+        linear-gradient(var(--frontend-stroke), var(--frontend-stroke)) right bottom / 1px 1.35rem no-repeat;
+      opacity: 0.58;
+    }
+    html[data-preset="editorial"] .diagram-container {
+      overflow: hidden;
+      border-color: var(--panel-border);
+      border-radius: 0.38rem;
+      background:
+        linear-gradient(90deg, color-mix(in srgb, var(--security-fill) 58%, transparent), transparent 12%),
+        var(--panel);
+      box-shadow:
+        0 1px 0 color-mix(in srgb, var(--text) 6%, transparent),
+        0 18px 48px color-mix(in srgb, #000 19%, transparent);
+    }
+    html[data-preset="editorial"] .diagram-container::after {
+      position: absolute;
+      z-index: 10;
+      top: 0.72rem;
+      right: 1.25rem;
+      padding: 0.2rem 0.52rem;
+      border: 1px solid var(--panel-border);
+      background: var(--panel);
+      color: var(--arrow-emphasis);
+      content: attr(data-preset-badge-editorial-plate);
+      font-family: Georgia, 'Times New Roman', serif;
+      font-size: 0.52rem;
+      font-style: italic;
+      font-weight: 600;
+      letter-spacing: 0.09em;
+      pointer-events: none;
+    }
+    html[data-embed="true"][data-preset="editorial"] .diagram-container::after { display: none; }
+    html[data-motion-capable="true"][data-preset="signal-flow"][data-ambient-motion="running"] .diagram-container::before {
+      content: "";
+      position: absolute;
+      inset: 0;
+      pointer-events: none;
+      background: linear-gradient(115deg, transparent 28%, rgba(103, 232, 249, 0.035) 48%, transparent 68%);
+      transform: translateX(-70%);
+      animation: archify-signal-scan 4.8s ease-in-out 1 both;
+    }
+
+    /* Motion Governor gives the reader a real static state and gives the
+       strongest semantic action the only motion budget. Atmosphere resets to
+       its authored base instead of freezing mid-cycle. Static artifacts never
+       start a decorative pulse or scan. */
+    html:not([data-motion-capable="true"]) svg[data-animation="trace"] [data-animate] {
+      animation: none !important;
+    }
+    html[data-motion="still"] .pulse-dot,
+    html[data-motion="still"] .diagram-container::before,
+    html[data-motion="still"] svg[data-animation="trace"] [data-animate],
+    html[data-motion-owner] .pulse-dot,
+    html[data-motion-owner] .diagram-container::before,
+    html[data-motion-owner] svg[data-animation="trace"] [data-animate],
+    html[data-embed="true"] .pulse-dot,
+    html[data-embed="true"] .diagram-container::before,
+    html[data-share-playback="true"] .pulse-dot,
+    html[data-share-playback="true"] .diagram-container::before,
+    html[data-document-hidden="true"] .pulse-dot,
+    html[data-document-hidden="true"] .diagram-container::before,
+    html[data-document-hidden="true"] svg[data-animation="trace"] [data-animate] {
+      animation: none !important;
+    }
+    html[data-motion="still"] .diagram-container::before,
+    html[data-motion-owner] .diagram-container::before,
+    html[data-embed="true"] .diagram-container::before,
+    html[data-share-playback="true"] .diagram-container::before {
+      opacity: 0;
+    }
+    html[data-motion="still"] .guided-view-progress span,
+    html[data-motion="still"] .guided-story-caption,
+    html[data-motion="still"] .story-trail-flow,
+    html[data-motion="still"] .intent-trace-flow,
+    html[data-motion="still"] .route-probe-flow,
+    html[data-motion="still"] .route-journey-flow,
+    html[data-motion="still"] .semantic-lens-flow,
+    html[data-motion="still"] .diagram-guide,
+    html[data-motion="still"] [data-story-step],
+    html[data-motion="still"] .overview-map-live,
+    html[data-motion="still"] .guided-view-stop,
+    html[data-motion="still"] .share-chapter-cue,
+    html[data-motion="still"] .share-chapter-state::before,
+    html[data-motion="still"] .share-chapter-progress span,
+    html[data-document-hidden="true"] .guided-view-progress span,
+    html[data-document-hidden="true"] .story-trail-flow,
+    html[data-document-hidden="true"] .intent-trace-flow,
+    html[data-document-hidden="true"] .route-probe-flow,
+    html[data-document-hidden="true"] .route-journey-flow,
+    html[data-document-hidden="true"] .semantic-lens-flow,
+    html[data-document-hidden="true"] .diagram-guide,
+    html[data-document-hidden="true"] [data-story-step],
+    html[data-document-hidden="true"] .overview-map-live,
+    html[data-document-hidden="true"] .guided-view-stop,
+    html[data-document-hidden="true"] .share-chapter-cue,
+    html[data-document-hidden="true"] .share-chapter-state::before,
+    html[data-document-hidden="true"] .share-chapter-progress span {
+      animation: none !important;
+    }
+    html[data-motion="still"] .guided-view-progress span {
+      transform: scaleX(1) !important;
+    }
+    html[data-motion="still"] svg[data-story-playing="true"] .story-trail-flow {
+      stroke-dasharray: none;
+      stroke-dashoffset: 0;
+      opacity: 0.55;
+    }
+    html[data-motion="still"] .intent-trace-flow,
+    html[data-motion="still"] .route-probe-flow {
+      stroke-dasharray: none;
+      stroke-dashoffset: 0;
+      opacity: 0.72;
+    }
+    html[data-motion="still"] .route-journey-overlay,
+    html[data-document-hidden="true"] .route-journey-overlay { display: none !important; }
+    html[data-motion="still"] .relationship-pulse-overlay,
+    html[data-motion="still"] .story-carrier-overlay,
+    html[data-document-hidden="true"] .story-carrier-overlay { display: none !important; }
+    html[data-motion="still"] .chapter-handoff-overlay { display: none !important; }
+    html[data-motion="still"] .chapter-handoff-anchor { animation: none !important; }
+    html[data-motion="still"] .guided-view-chapter,
+    html[data-motion="still"] svg [data-node-id],
+    html[data-motion="still"] svg [data-edge-from],
+    html[data-motion="still"] svg [data-detail],
+    html[data-motion="still"] svg [data-detail-anchor],
+    html[data-motion="still"] svg [data-legend-hit],
+    html[data-motion="still"] svg {
+      transition: none !important;
+    }
+
+    svg {
+      width: 100%;
+      min-width: min(900px, 100%);
+      display: block;
+      transform-origin: 0 0;
+      transition: transform 0.18s ease;
+    }
+
+    .diagram-container.is-camera-moving svg {
+      transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
+    }
+    .diagram-container.is-camera-transaction svg { transition: none; }
+    .diagram-container.is-pannable { cursor: grab; }
+    .diagram-container.is-panning { cursor: grabbing; user-select: none; }
+    .diagram-container.is-panning svg { transition: none; }
+
+    .diagram-nav {
+      position: absolute;
+      right: 1rem;
+      bottom: 1rem;
+      z-index: 12;
+      display: inline-flex;
+      align-items: center;
+      max-width: calc(100% - 2rem);
+      padding: 0.15rem;
+      gap: 0;
+      overflow-x: auto;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 48%, transparent);
+      border-radius: 0.58rem;
+      background: color-mix(in srgb, var(--toolbar-bg) 82%, transparent);
+      box-shadow: 0 5px 14px rgba(0, 0, 0, 0.07);
+      backdrop-filter: blur(10px);
+      scrollbar-width: none;
+    }
+    .diagram-nav::-webkit-scrollbar { display: none; }
+    .diagram-nav button,
+    .focus-chip button,
+    .guided-views button {
+      border: 0;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      cursor: pointer;
+    }
+    .diagram-nav button {
+      min-width: 2rem;
+      height: 2rem;
+      padding: 0 0.35rem;
+      border-radius: 0.35rem;
+      color: color-mix(in srgb, var(--toolbar-text) 68%, transparent);
+      font-size: 0.56rem;
+      font-weight: 600;
+      letter-spacing: 0.02em;
+      transition: background 0.15s, color 0.15s;
+    }
+    .diagram-nav button:hover,
+    .diagram-nav button:focus-visible,
+    .focus-chip button:hover,
+    .focus-chip button:focus-visible,
+    .guided-views button:hover,
+    .guided-views button:focus-visible { background: var(--toolbar-hover); }
+    .diagram-nav button:focus-visible,
+    .focus-chip button:focus-visible,
+    .guided-views button:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 1px;
+    }
+    .diagram-nav button:disabled { opacity: 0.38; cursor: default; }
+    .diagram-nav button:disabled:hover { background: transparent; }
+    .diagram-nav #btn-route-probe,
+    .diagram-nav #btn-overview-map,
+    .diagram-nav #btn-semantic-lens {
+      min-width: auto;
+      padding-inline: 0.5rem;
+      color: color-mix(in srgb, var(--toolbar-text) 86%, transparent);
+      font-weight: 650;
+    }
+    .diagram-nav #btn-node-finder,
+    .diagram-nav [data-view="out"] {
+      position: relative;
+      margin-left: 0.25rem;
+    }
+    .diagram-nav #btn-node-finder::before,
+    .diagram-nav [data-view="out"]::before {
+      position: absolute;
+      top: 0.4rem;
+      bottom: 0.4rem;
+      left: -0.13rem;
+      width: 1px;
+      background: color-mix(in srgb, var(--toolbar-border) 62%, transparent);
+      content: "";
+      pointer-events: none;
+    }
+    .diagram-nav-icon {
+      display: block;
+      width: 0.72rem;
+      height: 0.72rem;
+      margin: auto;
+      background: currentColor;
+      -webkit-mask-position: center;
+      -webkit-mask-repeat: no-repeat;
+      -webkit-mask-size: contain;
+      mask-position: center;
+      mask-repeat: no-repeat;
+      mask-size: contain;
+    }
+    .diagram-nav-icon.find {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='8.5' cy='8.5' r='4.5' fill='none' stroke='black' stroke-width='1.8'/%3E%3Cpath d='m12 12 4 4' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='8.5' cy='8.5' r='4.5' fill='none' stroke='black' stroke-width='1.8'/%3E%3Cpath d='m12 12 4 4' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    .diagram-nav-icon.guide {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='10' cy='10' r='7' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M7.8 7.3a2.4 2.4 0 014.6.9c0 1.8-2.4 2-2.4 3.7M10 14.9h.01' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Ccircle cx='10' cy='10' r='7' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M7.8 7.3a2.4 2.4 0 014.6.9c0 1.8-2.4 2-2.4 3.7M10 14.9h.01' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    .diagram-nav-icon.minus {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10h10' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10h10' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    .diagram-nav-icon.plus {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 5v10M5 10h10' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 5v10M5 10h10' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    .diagram-nav [data-view="reset"] {
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+      gap: 0.2rem;
+      min-width: 3.1rem;
+      padding-inline: 0.35rem;
+    }
+    .diagram-nav [data-view="reset"][data-detail-visible] {
+      min-width: 3.8rem;
+    }
+    .diagram-nav-detail {
+      color: color-mix(in srgb, var(--toolbar-text) 52%, transparent);
+      font-size: 0.44rem;
+      font-weight: 700;
+      line-height: 1;
+      letter-spacing: 0.07em;
+    }
+    .diagram-nav-percent {
+      color: color-mix(in srgb, var(--toolbar-text) 84%, transparent);
+      font-size: 0.55rem;
+      font-weight: 650;
+      line-height: 1;
+    }
+    .diagram-container[data-camera-indicator="true"] .diagram-nav-detail,
+    .diagram-container[data-camera-indicator="true"] .diagram-nav-percent { color: var(--frontend-stroke); }
+    .diagram-nav #btn-diagram-guide[aria-expanded="true"] {
+      color: var(--cloud-stroke);
+      background: var(--toolbar-hover);
+    }
+
+    /* Semantic Radar is a deliberately simplified, viewer-only overview. It
+       uses authored node bounds and the live camera viewport rather than
+       cloning the canonical SVG, so IDs, filters, animation, and export state
+       stay singular and deterministic. */
+    .overview-map {
+      position: absolute;
+      right: 1rem;
+      bottom: calc(4.15rem + var(--archify-nav-reserve));
+      z-index: 12;
+      width: 11.25rem;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 52%, var(--toolbar-border));
+      border-radius: 0.78rem;
+      background: var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 16px 42px rgba(0, 0, 0, 0.3);
+      backdrop-filter: blur(16px);
+      font-size: 0.625rem;
+    }
+    .overview-map[hidden] { display: none; }
+    .overview-map[data-docked="true"] {
+      position: fixed;
+      right: var(--archify-radar-right, 1rem);
+      top: var(--archify-radar-top, 1rem);
+      bottom: auto;
+    }
+    .overview-map[data-docked="true"][data-dock-side="left"] {
+      right: auto;
+      left: var(--archify-radar-left, 1rem);
+    }
+    html[data-preset="blueprint"] .overview-map { border-radius: 0.28rem; }
+    .overview-map-head {
+      display: grid;
+      grid-template-columns: auto minmax(0, 1fr) auto;
+      align-items: center;
+      gap: 0.45rem;
+      min-height: 2.25rem;
+      padding: 0.42rem 0.48rem 0.38rem 0.55rem;
+      border-bottom: 1px solid var(--toolbar-border);
+      background: linear-gradient(110deg, color-mix(in srgb, var(--frontend-fill) 45%, transparent), transparent 68%);
+      cursor: grab;
+      touch-action: none;
+      user-select: none;
+    }
+    .overview-map[data-panel-dragging="true"] .overview-map-head { cursor: grabbing; }
+    .overview-map[data-placement-invalid="true"] {
+      border-color: var(--security-stroke);
+      box-shadow: 0 0 0 2px color-mix(in srgb, var(--security-stroke) 34%, transparent), 0 16px 42px rgba(0, 0, 0, 0.3);
+    }
+    .overview-map[data-compact="true"] {
+      width: 7.4rem;
+    }
+    .overview-map[data-compact="true"] .overview-map-head {
+      grid-template-columns: minmax(0, 1fr) auto;
+      gap: 0.24rem;
+      min-height: 1.5rem;
+      padding: 0.05rem 0.16rem 0.05rem 0.32rem;
+      border-bottom: 0;
+    }
+    .overview-map[data-compact="true"] .overview-map-live,
+    .overview-map[data-compact="true"] .overview-map-copy,
+    .overview-map[data-compact="true"] .overview-map-surface,
+    .overview-map[data-compact="true"] .overview-map-hint {
+      display: none;
+    }
+    .overview-map[data-compact="true"] .overview-map-expand { display: inline-flex; }
+    .overview-map[data-compact="true"] .overview-map-close {
+      width: 1.15rem;
+      height: 1.15rem;
+      font-size: 0.72rem;
+    }
+    .overview-map-live {
+      width: 0.42rem;
+      height: 0.42rem;
+      border-radius: 50%;
+      background: var(--backend-stroke);
+      box-shadow: 0 0 0 0 color-mix(in srgb, var(--backend-stroke) 52%, transparent);
+      animation: archify-radar-live 2.4s ease-out infinite;
+    }
+    .overview-map-copy { min-width: 0; line-height: 1.1; }
+    .overview-map-copy strong {
+      display: block;
+      overflow: hidden;
+      color: var(--frontend-stroke);
+      font-size: 0.59rem;
+      letter-spacing: 0.12em;
+      text-transform: uppercase;
+      white-space: nowrap;
+      text-overflow: ellipsis;
+    }
+    .overview-map-copy small {
+      display: block;
+      margin-top: 0.18rem;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.52rem;
+      letter-spacing: 0.04em;
+      white-space: nowrap;
+      text-overflow: ellipsis;
+    }
+    .overview-map-expand {
+      display: none;
+      align-items: center;
+      justify-content: center;
+      min-width: 0;
+      height: 1.2rem;
+      padding: 0 0.34rem;
+      overflow: hidden;
+      border: 0;
+      border-radius: 0.3rem;
+      background: transparent;
+      color: var(--frontend-stroke);
+      font: inherit;
+      font-size: 0.49rem;
+      font-weight: 700;
+      letter-spacing: 0.06em;
+      text-transform: uppercase;
+      white-space: nowrap;
+      cursor: pointer;
+    }
+    .overview-map-close {
+      width: 1.55rem;
+      height: 1.55rem;
+      padding: 0;
+      border: 0;
+      border-radius: 0.34rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      font-size: 0.9rem;
+      cursor: pointer;
+    }
+    .overview-map-expand:hover,
+    .overview-map-expand:focus-visible,
+    .overview-map-close:hover,
+    .overview-map-close:focus-visible { background: var(--toolbar-hover); }
+    .overview-map-expand:focus-visible,
+    .overview-map-close:focus-visible,
+    .overview-map-surface:focus-visible,
+    .overview-map-node:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 1px;
+    }
+    .overview-map-surface {
+      position: relative;
+      height: 7rem;
+      margin: 0.42rem;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--panel-border) 72%, transparent);
+      border-radius: 0.42rem;
+      background:
+        linear-gradient(color-mix(in srgb, var(--panel-border) 26%, transparent) 1px, transparent 1px),
+        linear-gradient(90deg, color-mix(in srgb, var(--panel-border) 26%, transparent) 1px, transparent 1px),
+        color-mix(in srgb, var(--bg) 86%, transparent);
+      background-size: 12px 12px;
+      cursor: crosshair;
+      touch-action: none;
+    }
+    html[data-preset="blueprint"] .overview-map-surface { border-radius: 0.1rem; }
+    .overview-map-surface > svg {
+      width: 100%;
+      height: 100%;
+      min-width: 0;
+      transform: none !important;
+      transition: none !important;
+      display: block;
+      overflow: visible;
+    }
+    .overview-map-node {
+      fill: var(--backend-stroke);
+      fill-opacity: 0.52;
+      stroke: var(--backend-stroke);
+      stroke-opacity: 0.86;
+      vector-effect: non-scaling-stroke;
+      cursor: pointer;
+      transition: fill-opacity 140ms ease, stroke-width 140ms ease, filter 140ms ease;
+    }
+    .overview-map-node[data-kind="frontend"],
+    .overview-map-node[data-kind="start"] { fill: var(--frontend-stroke); stroke: var(--frontend-stroke); }
+    .overview-map-node[data-kind="database"],
+    .overview-map-node[data-kind="success"] { fill: var(--database-stroke); stroke: var(--database-stroke); }
+    .overview-map-node[data-kind="cloud"],
+    .overview-map-node[data-kind="waiting"] { fill: var(--cloud-stroke); stroke: var(--cloud-stroke); }
+    .overview-map-node[data-kind="messagebus"] { fill: var(--messagebus-stroke); stroke: var(--messagebus-stroke); }
+    .overview-map-node[data-kind="security"],
+    .overview-map-node[data-kind="decision"],
+    .overview-map-node[data-kind="failure"] { fill: var(--security-stroke); stroke: var(--security-stroke); }
+    .overview-map-node[data-kind="external"],
+    .overview-map-node[data-kind="neutral"] { fill: var(--external-stroke); stroke: var(--external-stroke); }
+    .overview-map-node[data-radar-active="true"],
+    .overview-map-node:hover,
+    .overview-map-node:focus-visible {
+      fill-opacity: 0.92;
+      stroke-width: 2.2;
+      filter: drop-shadow(0 0 3px currentColor);
+    }
+    .overview-map-viewport {
+      fill: color-mix(in srgb, var(--frontend-fill) 56%, transparent);
+      stroke: var(--frontend-stroke);
+      stroke-width: 2;
+      vector-effect: non-scaling-stroke;
+      pointer-events: none;
+      filter: drop-shadow(0 0 3px color-mix(in srgb, var(--frontend-stroke) 54%, transparent));
+    }
+    .overview-map-hint {
+      display: flex;
+      justify-content: space-between;
+      gap: 0.5rem;
+      padding: 0 0.52rem 0.46rem;
+      color: var(--text-faint);
+      font-size: 0.49rem;
+      letter-spacing: 0.06em;
+      text-transform: uppercase;
+    }
+    .diagram-nav #btn-overview-map[aria-expanded="true"] {
+      color: var(--frontend-stroke);
+      background: var(--toolbar-hover);
+    }
+    .overview-map-feedback {
+      position: absolute;
+      right: 1rem;
+      bottom: 4.15rem;
+      z-index: 13;
+      max-width: min(16rem, calc(100% - 2rem));
+      padding: 0.38rem 0.55rem;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 52%, var(--toolbar-border));
+      border-radius: 0.5rem;
+      background: var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
+      font-size: 0.52rem;
+      line-height: 1.35;
+      pointer-events: none;
+    }
+    .overview-map-feedback[hidden] { display: none; }
+    .focus-chip[data-radar-yielded="true"] { display: none !important; }
+    .diagram-nav #btn-route-probe[aria-pressed="true"] {
+      color: var(--backend-stroke);
+      background: var(--toolbar-hover);
+    }
+    .diagram-nav #btn-semantic-lens[aria-expanded="true"],
+    .diagram-nav #btn-semantic-lens[aria-pressed="true"] {
+      color: var(--database-stroke);
+      background: var(--toolbar-hover);
+    }
+
+    /* Semantic Lens turns the compiled node-kind palette into an analytical
+       legend. One kind reveals its real traffic; two kinds compare only their
+       direct authored relationships. Geometry and the canonical SVG stay put. */
+    .semantic-lens {
+      position: absolute;
+      right: 1rem;
+      bottom: calc(4.15rem + var(--archify-nav-reserve));
+      z-index: 24;
+      width: min(20rem, calc(100% - 2rem));
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--database-stroke) 58%, var(--toolbar-border));
+      border-radius: 0.82rem;
+      background:
+        linear-gradient(135deg, color-mix(in srgb, var(--database-fill) 34%, transparent), transparent 48%),
+        var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 18px 52px rgba(0, 0, 0, 0.36);
+      backdrop-filter: blur(18px);
+      animation: archify-lens-in 180ms cubic-bezier(0.22, 1, 0.36, 1);
+    }
+    .semantic-lens[hidden] { display: none; }
+    .semantic-lens[data-dock-side="left"] { left: 1rem; right: auto; }
+    .semantic-lens[data-dock-side="right"] { left: auto; right: 1rem; }
+    html[data-preset="blueprint"] .semantic-lens { border-radius: 0.28rem; }
+    .semantic-lens-head {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      align-items: start;
+      gap: 0.75rem;
+      padding: 0.72rem 0.78rem 0.62rem;
+      border-bottom: 1px solid var(--toolbar-border);
+    }
+    .semantic-lens-eyebrow {
+      display: block;
+      color: var(--database-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.16em;
+      text-transform: uppercase;
+    }
+    .semantic-lens-title {
+      display: block;
+      margin-top: 0.16rem;
+      color: var(--text);
+      font-size: 0.82rem;
+      letter-spacing: -0.02em;
+    }
+    .semantic-lens-close {
+      width: 1.75rem;
+      height: 1.75rem;
+      padding: 0;
+      border: 0;
+      border-radius: 0.35rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      font-size: 1rem;
+      cursor: pointer;
+    }
+    .semantic-lens-close:hover,
+    .semantic-lens-close:focus-visible { background: var(--toolbar-hover); }
+    .semantic-lens-instruction {
+      margin: 0;
+      padding: 0.52rem 0.78rem 0.48rem;
+      color: var(--text-faint);
+      font-size: 0.55rem;
+      line-height: 1.45;
+    }
+    .semantic-lens-kinds {
+      display: grid;
+      grid-template-columns: 1fr 1fr;
+      gap: 0.3rem;
+      max-height: min(15rem, 40vh);
+      padding: 0 0.5rem 0.5rem;
+      overflow-y: auto;
+      scrollbar-width: thin;
+    }
+    .semantic-lens-kind {
+      --lens-color: var(--external-stroke);
+      display: grid;
+      grid-template-columns: auto minmax(0, 1fr) auto;
+      align-items: center;
+      gap: 0.42rem;
+      min-width: 0;
+      min-height: 2.15rem;
+      padding: 0.35rem 0.42rem;
+      border: 1px solid color-mix(in srgb, var(--lens-color) 24%, var(--toolbar-border));
+      border-radius: 0.45rem;
+      background: color-mix(in srgb, var(--panel) 76%, transparent);
+      color: var(--toolbar-text);
+      font: inherit;
+      text-align: left;
+      cursor: pointer;
+      transition: border-color 140ms ease, background 140ms ease, opacity 140ms ease;
+    }
+    html[data-preset="blueprint"] .semantic-lens-kind { border-radius: 0.12rem; }
+    .semantic-lens-kind[data-kind="frontend"],
+    .semantic-lens-kind[data-kind="start"] { --lens-color: var(--frontend-stroke); }
+    .semantic-lens-kind[data-kind="backend"],
+    .semantic-lens-kind[data-kind="active"] { --lens-color: var(--backend-stroke); }
+    .semantic-lens-kind[data-kind="database"],
+    .semantic-lens-kind[data-kind="success"] { --lens-color: var(--database-stroke); }
+    .semantic-lens-kind[data-kind="cloud"],
+    .semantic-lens-kind[data-kind="waiting"] { --lens-color: var(--cloud-stroke); }
+    .semantic-lens-kind[data-kind="messagebus"] { --lens-color: var(--messagebus-stroke); }
+    .semantic-lens-kind[data-kind="security"],
+    .semantic-lens-kind[data-kind="decision"],
+    .semantic-lens-kind[data-kind="failure"] { --lens-color: var(--security-stroke); }
+    .semantic-lens-kind:hover,
+    .semantic-lens-kind:focus-visible,
+    .semantic-lens-kind[aria-pressed="true"] {
+      border-color: color-mix(in srgb, var(--lens-color) 78%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--lens-color) 11%, var(--panel));
+    }
+    .semantic-lens-kind:focus-visible,
+    .semantic-lens-close:focus-visible,
+    .semantic-lens-actions button:focus-visible {
+      outline: 2px solid var(--database-stroke);
+      outline-offset: 1px;
+    }
+    .semantic-lens-kind:disabled { opacity: 0.34; cursor: default; }
+    .semantic-lens-swatch {
+      width: 0.48rem;
+      height: 0.48rem;
+      border-radius: 50%;
+      background: var(--lens-color);
+      box-shadow: 0 0 8px color-mix(in srgb, var(--lens-color) 58%, transparent);
+    }
+    .semantic-lens-kind strong {
+      overflow: hidden;
+      color: var(--text);
+      font-size: 0.61rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-lens-kind em {
+      color: var(--lens-color);
+      font-size: 0.54rem;
+      font-style: normal;
+      font-weight: 800;
+    }
+    .semantic-lens-status {
+      min-height: 2.5rem;
+      margin: 0;
+      padding: 0.55rem 0.78rem;
+      border-top: 1px solid var(--toolbar-border);
+      color: var(--text-faint);
+      font-size: 0.55rem;
+      line-height: 1.45;
+    }
+    .semantic-lens-status strong { color: var(--database-stroke); font-weight: 800; }
+    .semantic-lens-actions {
+      display: flex;
+      justify-content: flex-end;
+      gap: 0.28rem;
+      padding: 0 0.62rem 0.62rem;
+    }
+    .semantic-lens-actions button {
+      min-height: 1.8rem;
+      padding: 0.28rem 0.48rem;
+      border: 0;
+      border-radius: 0.35rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      font-size: 0.56rem;
+      cursor: pointer;
+    }
+    .semantic-lens-actions button:hover { background: var(--toolbar-hover); }
+    .semantic-lens-actions #semantic-lens-copy { color: var(--database-stroke); }
+    @keyframes archify-lens-in {
+      from { opacity: 0; transform: translateY(5px) scale(0.985); }
+      to { opacity: 1; transform: translateY(0) scale(1); }
+    }
+
+    /* Route Probe answers a reader question over the compiled semantic graph:
+       choose two stable nodes and reveal the shortest authored directed route.
+       The receipt and signal live entirely in the viewer layer. */
+    .route-probe {
+      position: absolute;
+      left: 1rem;
+      bottom: calc(1rem + var(--archify-nav-reserve));
+      z-index: 12;
+      width: min(46rem, calc(100% - 25rem));
+      min-width: 18rem;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--backend-stroke) 62%, var(--toolbar-border));
+      border-radius: 0.82rem;
+      background:
+        linear-gradient(115deg, color-mix(in srgb, var(--backend-fill) 50%, transparent), transparent 62%),
+        var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
+      backdrop-filter: blur(16px);
+      font-size: 0.625rem;
+    }
+    .route-probe[hidden] { display: none; }
+    .route-probe[data-route-dock="top"] {
+      top: 1rem;
+      bottom: auto;
+    }
+    html[data-preset="blueprint"] .route-probe { border-radius: 0.25rem; }
+    .route-probe-head {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      align-items: start;
+      gap: 0.65rem;
+      padding: 0.52rem 0.58rem 0.44rem;
+      border-bottom: 1px solid color-mix(in srgb, var(--toolbar-border) 80%, transparent);
+    }
+    .route-probe-copy { min-width: 0; }
+    .route-probe-eyebrow {
+      display: block;
+      color: var(--backend-stroke);
+      font-size: 0.48rem;
+      font-weight: 800;
+      letter-spacing: 0.15em;
+      text-transform: uppercase;
+    }
+    .route-probe-title {
+      display: block;
+      margin-top: 0.14rem;
+      overflow: hidden;
+      color: var(--toolbar-text);
+      font-size: 0.72rem;
+      line-height: 1.25;
+      white-space: nowrap;
+      text-overflow: ellipsis;
+    }
+    .route-probe-actions { display: flex; gap: 0.2rem; }
+    .route-probe button {
+      min-height: 1.55rem;
+      padding: 0.25rem 0.42rem;
+      border: 0;
+      border-radius: 0.36rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      cursor: pointer;
+    }
+    .route-probe button:hover,
+    .route-probe button:focus-visible { background: var(--toolbar-hover); }
+    .route-probe button:focus-visible {
+      outline: 2px solid var(--backend-stroke);
+      outline-offset: 1px;
+    }
+    .route-probe-copy-link { color: var(--frontend-stroke) !important; }
+    .route-probe-find { color: var(--backend-stroke) !important; }
+    .route-probe-copy-link[hidden] { display: none; }
+    .route-probe-find[hidden] { display: none; }
+    .route-probe-path {
+      display: flex;
+      align-items: center;
+      min-height: 2.2rem;
+      padding: 0.42rem 0.58rem 0.24rem;
+      overflow-x: auto;
+      scrollbar-width: thin;
+      white-space: nowrap;
+    }
+    .route-probe-node,
+    .route-probe button.route-probe-node {
+      flex: none;
+      max-width: 9.5rem;
+      overflow: hidden;
+      min-height: 1.75rem !important;
+      padding: 0.22rem 0.38rem;
+      border: 1px solid color-mix(in srgb, var(--backend-stroke) 46%, var(--toolbar-border));
+      border-radius: 999px;
+      background: color-mix(in srgb, var(--backend-fill) 52%, transparent);
+      color: var(--text);
+      font-size: 0.56rem;
+      font-weight: 700;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .route-probe-node[data-endpoint="start"] {
+      border-color: var(--frontend-stroke);
+      color: var(--frontend-stroke);
+    }
+    .route-probe-node[data-endpoint="end"] {
+      border-color: var(--security-stroke);
+      color: var(--security-stroke);
+    }
+    .route-probe-node[data-route-journey-state="past"] { opacity: 0.66; }
+    .route-probe-node[data-route-journey-state="future"] { opacity: 0.48; }
+    .route-probe-node[aria-current="step"] {
+      border-color: var(--backend-stroke);
+      background: color-mix(in srgb, var(--backend-fill) 82%, var(--toolbar-menu-bg));
+      color: var(--text);
+      box-shadow: 0 0 0 1px color-mix(in srgb, var(--backend-stroke) 42%, transparent), 0 0 14px color-mix(in srgb, var(--backend-stroke) 34%, transparent);
+      opacity: 1;
+    }
+    html[data-preset="blueprint"] .route-probe-node[aria-current="step"] {
+      border-style: double;
+      border-width: 3px;
+      border-radius: 0.2rem;
+      box-shadow: none;
+    }
+    .route-probe-arrow {
+      flex: none;
+      padding: 0 0.28rem;
+      color: var(--text-faint);
+      font-size: 0.65rem;
+    }
+    .route-probe-placeholder {
+      color: var(--text-faint);
+      font-size: 0.56rem;
+      letter-spacing: 0.03em;
+    }
+    .route-probe-status {
+      display: block;
+      min-height: 1.45rem;
+      padding: 0.08rem 0.58rem 0.44rem;
+      color: var(--text-faint);
+      font-size: 0.52rem;
+      line-height: 1.35;
+    }
+    .route-journey-controls {
+      display: grid;
+      grid-template-columns: 2rem minmax(5.8rem, auto) 2rem minmax(4.8rem, auto);
+      justify-content: start;
+      gap: 0.22rem;
+      padding: 0.08rem 0.58rem 0.28rem;
+    }
+    .route-journey-controls[hidden] { display: none; }
+    .route-journey-controls button {
+      min-height: 1.8rem;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 86%, transparent);
+      background: color-mix(in srgb, var(--toolbar-bg) 72%, transparent);
+      font-size: 0.54rem;
+      font-weight: 700;
+    }
+    .route-journey-controls button:disabled {
+      cursor: default;
+      opacity: 0.34;
+    }
+    .route-journey-play { color: var(--backend-stroke) !important; }
+    .route-journey-overview { color: var(--frontend-stroke) !important; }
+    .route-journey-controls[data-playing="true"] .route-journey-play {
+      border-color: color-mix(in srgb, var(--backend-stroke) 64%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--backend-fill) 62%, transparent);
+    }
+    .route-probe[data-state="error"] {
+      border-color: color-mix(in srgb, var(--security-stroke) 72%, var(--toolbar-border));
+    }
+    .route-probe[data-state="error"] .route-probe-status { color: var(--security-stroke); }
+
+    .focus-chip {
+      position: absolute;
+      left: 1rem;
+      top: 1rem;
+      z-index: 12;
+      display: block;
+      width: min(22rem, calc(100% - 13rem));
+      max-width: calc(100% - 13rem);
+      overflow: hidden;
+      border: 1px solid var(--frontend-stroke);
+      border-radius: 0.85rem;
+      background: var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
+      backdrop-filter: blur(16px);
+      font-size: 0.6875rem;
+    }
+    .focus-chip[hidden] { display: none; }
+    html[data-preset="blueprint"] .focus-chip { border-radius: 0.3rem; }
+    .focus-chip button {
+      flex: none;
+      padding: 0.3rem 0.45rem;
+      border-radius: 0.35rem;
+      font-size: 0.625rem;
+    }
+    .relationship-lens-head {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      align-items: start;
+      gap: 0.75rem;
+      padding: 0.7rem 0.75rem 0.65rem;
+      border-bottom: 1px solid var(--toolbar-border);
+      background: linear-gradient(120deg, color-mix(in srgb, var(--frontend-fill) 34%, transparent), transparent 72%);
+    }
+    .relationship-lens-copy { min-width: 0; }
+    .relationship-lens-actions {
+      display: flex;
+      flex-direction: column;
+      align-items: flex-end;
+      gap: 0.18rem;
+    }
+    .relationship-lens-actions button { white-space: nowrap; }
+    .relationship-lens-actions #btn-focus-clear {
+      display: grid;
+      width: 1.75rem;
+      height: 1.75rem;
+      padding: 0;
+      place-items: center;
+      color: var(--text-muted);
+      font-size: 1rem;
+      line-height: 1;
+    }
+    .relationship-lens-actions #btn-focus-clear:hover,
+    .relationship-lens-actions #btn-focus-clear:focus-visible {
+      background: var(--toolbar-hover);
+      color: var(--text);
+    }
+    .relationship-lens-actions #btn-focus-copy { color: var(--frontend-stroke); }
+    .relationship-lens-actions #btn-focus-relations { display: none; }
+    .relationship-lens-eyebrow {
+      display: block;
+      margin-bottom: 0.18rem;
+      color: var(--frontend-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.14em;
+      text-transform: uppercase;
+    }
+    .relationship-lens-title {
+      display: block;
+      overflow: hidden;
+      color: var(--text);
+      font-size: 0.8rem;
+      line-height: 1.35;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-passport-detail {
+      display: block;
+      margin-top: 0.12rem;
+      overflow: hidden;
+      color: var(--text-muted);
+      font-size: 0.625rem;
+      line-height: 1.4;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-passport-detail[hidden] { display: none; }
+    .semantic-passport-meta {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 0.24rem;
+      margin-top: 0.42rem;
+    }
+    .semantic-passport-meta span,
+    .semantic-passport-meta code {
+      max-width: 100%;
+      overflow: hidden;
+      padding: 0.14rem 0.34rem;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 82%, transparent);
+      border-radius: 999px;
+      background: color-mix(in srgb, var(--panel) 68%, transparent);
+      color: var(--text-faint);
+      font: inherit;
+      font-size: 0.5rem;
+      letter-spacing: 0.04em;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-passport-meta [data-passport="kind"] {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 50%, var(--toolbar-border));
+      color: var(--frontend-stroke);
+      font-weight: 800;
+      text-transform: uppercase;
+    }
+    .semantic-passport-meta [data-passport="tag"] { color: var(--cloud-stroke); }
+    .semantic-passport-meta [data-passport="brand"] {
+      border-color: color-mix(in srgb, var(--messagebus-stroke) 52%, var(--toolbar-border));
+      color: var(--messagebus-stroke);
+      font-weight: 700;
+    }
+    .semantic-passport-meta [hidden] { display: none; }
+    html[data-preset="blueprint"] .semantic-passport-meta span,
+    html[data-preset="blueprint"] .semantic-passport-meta code { border-radius: 0.1rem; }
+    .semantic-passport-evidence {
+      margin-top: 0.52rem;
+      padding: 0.5rem;
+      border: 1px solid color-mix(in srgb, var(--backend-stroke) 32%, var(--toolbar-border));
+      border-radius: 0.55rem;
+      background: color-mix(in srgb, var(--backend-fill) 18%, var(--panel));
+    }
+    .semantic-passport-evidence[hidden] { display: none; }
+    html[data-preset="blueprint"] .semantic-passport-evidence { border-radius: 0.18rem; }
+    .semantic-passport-evidence-head {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      gap: 0.55rem;
+      margin-bottom: 0.35rem;
+    }
+    .semantic-passport-evidence-status {
+      display: inline-flex;
+      align-items: center;
+      gap: 0.28rem;
+      color: var(--backend-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.08em;
+      text-transform: uppercase;
+    }
+    .semantic-passport-evidence-status::before {
+      content: '';
+      width: 0.38rem;
+      height: 0.38rem;
+      border-radius: 50%;
+      background: var(--backend-stroke);
+      box-shadow: 0 0 0 3px color-mix(in srgb, var(--backend-stroke) 14%, transparent);
+    }
+    .semantic-passport-repository {
+      min-width: 0;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      text-decoration: none;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-passport-repository:hover,
+    .semantic-passport-repository:focus-visible { color: var(--backend-stroke); }
+    .semantic-passport-evidence-links { display: grid; gap: 0.22rem; }
+    .semantic-passport-source {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      gap: 0.15rem 0.45rem;
+      align-items: center;
+      padding: 0.34rem 0.4rem;
+      border: 1px solid transparent;
+      border-radius: 0.38rem;
+      color: var(--text-muted);
+      text-decoration: none;
+    }
+    .semantic-passport-source:hover,
+    .semantic-passport-source:focus-visible {
+      border-color: color-mix(in srgb, var(--backend-stroke) 42%, transparent);
+      background: color-mix(in srgb, var(--backend-fill) 32%, transparent);
+      color: var(--text);
+    }
+    .semantic-passport-source strong {
+      overflow: hidden;
+      font-size: 0.5625rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .semantic-passport-source code {
+      color: var(--backend-stroke);
+      font: inherit;
+      font-size: 0.5rem;
+    }
+    .semantic-passport-source small {
+      grid-column: 1 / -1;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .relationship-lens-summary {
+      display: block;
+      margin-top: 0.12rem;
+      color: var(--text-faint);
+      font-size: 0.5625rem;
+    }
+    .semantic-passport-reach {
+      display: grid;
+      gap: 0.28rem;
+      margin-top: 0.52rem;
+      padding-top: 0.48rem;
+      border-top: 1px solid color-mix(in srgb, var(--toolbar-border) 76%, transparent);
+    }
+    .semantic-passport-reach[hidden] { display: none; }
+    .semantic-passport-reach-label {
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.1em;
+      text-transform: uppercase;
+    }
+    .semantic-passport-reach-actions {
+      display: grid;
+      grid-template-columns: repeat(2, minmax(0, 1fr));
+      gap: 0.25rem;
+    }
+    .semantic-passport-reach-actions button {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      gap: 0.5rem;
+      min-width: 0;
+      min-height: 2rem;
+      padding: 0.32rem 0.42rem;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 86%, transparent);
+      background: color-mix(in srgb, var(--panel) 70%, transparent);
+      color: var(--text-muted);
+      text-align: left;
+    }
+    .semantic-passport-reach-actions button:hover:not(:disabled),
+    .semantic-passport-reach-actions button:focus-visible {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 62%, var(--toolbar-border));
+      color: var(--text);
+    }
+    .semantic-passport-reach-actions button:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 1px;
+    }
+    .semantic-passport-reach-actions button:disabled {
+      cursor: default;
+      opacity: 0.5;
+    }
+    .semantic-passport-reach-actions button[aria-pressed="true"] {
+      border-color: color-mix(in srgb, var(--reach-color, var(--frontend-stroke)) 72%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--reach-fill, var(--frontend-fill)) 48%, transparent);
+      color: var(--text);
+    }
+    #btn-reach-upstream {
+      --reach-color: var(--database-stroke);
+      --reach-fill: var(--database-fill);
+    }
+    #btn-reach-downstream {
+      --reach-color: var(--backend-stroke);
+      --reach-fill: var(--backend-fill);
+    }
+    .semantic-passport-reach-actions strong {
+      color: var(--reach-color, var(--frontend-stroke));
+      font-size: 0.625rem;
+    }
+    .semantic-passport-reach-status {
+      color: var(--text-faint);
+      font-size: 0.525rem;
+      line-height: 1.4;
+    }
+    .semantic-passport-reach-status[hidden] { display: none; }
+    .relationship-lens-list {
+      max-height: min(18rem, 46vh);
+      overflow: auto;
+      padding: 0.4rem;
+      scrollbar-width: thin;
+      scrollbar-color: var(--frontend-stroke) transparent;
+    }
+    .relationship-lens-list::-webkit-scrollbar { width: 4px; }
+    .relationship-lens-list::-webkit-scrollbar-thumb {
+      border-radius: 999px;
+      background: color-mix(in srgb, var(--frontend-stroke) 68%, transparent);
+    }
+    .relationship-lens-group + .relationship-lens-group { margin-top: 0.35rem; }
+    .relationship-lens-group-title {
+      display: block;
+      padding: 0.24rem 0.38rem 0.16rem;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.12em;
+      text-transform: uppercase;
+    }
+    .relationship-lens-row {
+      display: grid;
+      grid-template-columns: 2.1rem minmax(0, 1fr);
+      gap: 0.06rem 0.45rem;
+      width: 100%;
+      padding: 0.45rem 0.5rem !important;
+      text-align: left;
+    }
+    .relationship-lens-row:hover,
+    .relationship-lens-row:focus-visible,
+    .relationship-lens-row[data-preview-active="true"] {
+      background: var(--toolbar-hover);
+      box-shadow: inset 2px 0 0 var(--frontend-stroke);
+    }
+    .relationship-lens-row:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: -2px;
+    }
+    .relationship-lens-direction {
+      grid-row: 1 / 3;
+      align-self: center;
+      color: var(--frontend-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.08em;
+    }
+    .relationship-lens-row[data-direction="in"] .relationship-lens-direction { color: var(--database-stroke); }
+    .relationship-lens-row[data-direction="loop"] .relationship-lens-direction { color: var(--security-stroke); }
+    .relationship-lens-row strong {
+      overflow: hidden;
+      color: var(--text);
+      font-size: 0.6875rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .relationship-lens-row small {
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.5625rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .relationship-lens-empty {
+      margin: 0;
+      padding: 0.75rem;
+      color: var(--text-faint);
+      font-size: 0.625rem;
+      text-align: center;
+    }
+
+    /* Diagram Guide keeps the artifact's growing reader vocabulary
+       discoverable without widening the permanent control bar. It derives
+       honest counts at runtime and delegates every action to an existing
+       production interaction instead of creating a second command system. */
+    .diagram-guide {
+      position: absolute;
+      top: 1rem;
+      right: 1rem;
+      z-index: 26;
+      width: min(32rem, calc(100% - 2rem));
+      max-height: min(42rem, calc(100% - 2rem));
+      overflow: auto;
+      border: 1px solid color-mix(in srgb, var(--cloud-stroke) 58%, var(--toolbar-border));
+      border-radius: 0.82rem;
+      background:
+        linear-gradient(135deg, color-mix(in srgb, var(--cloud-fill) 32%, transparent), transparent 42%),
+        var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 22px 64px rgba(0, 0, 0, 0.4);
+      backdrop-filter: blur(18px);
+      animation: archify-guide-in 180ms cubic-bezier(0.22, 1, 0.36, 1);
+    }
+    .diagram-guide[hidden] { display: none; }
+    html[data-preset="blueprint"] .diagram-guide { border-radius: 0.28rem; }
+    .diagram-guide-head {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      align-items: start;
+      gap: 1rem;
+      padding: 0.82rem 0.9rem 0.68rem;
+      border-bottom: 1px solid var(--toolbar-border);
+    }
+    .diagram-guide-eyebrow {
+      display: block;
+      color: var(--cloud-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.16em;
+      text-transform: uppercase;
+    }
+    .diagram-guide-title {
+      display: block;
+      margin-top: 0.16rem;
+      color: var(--text);
+      font-size: 0.86rem;
+      letter-spacing: -0.02em;
+    }
+    .diagram-guide-close {
+      width: 1.8rem;
+      height: 1.8rem;
+      border: 0;
+      border-radius: 0.35rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      font-size: 1rem;
+      cursor: pointer;
+    }
+    .diagram-guide-close:hover,
+    .diagram-guide-close:focus-visible { background: var(--toolbar-hover); }
+    .diagram-guide-stats {
+      display: flex;
+      align-items: center;
+      gap: 0.5rem;
+      margin: 0;
+      padding: 0.54rem 0.9rem;
+      border-bottom: 1px solid color-mix(in srgb, var(--toolbar-border) 74%, transparent);
+      color: var(--text-faint);
+      font-size: 0.56rem;
+      letter-spacing: 0.025em;
+    }
+    .diagram-guide-stats::before {
+      content: '';
+      width: 0.42rem;
+      height: 0.42rem;
+      flex: none;
+      border-radius: 50%;
+      background: var(--backend-stroke);
+      box-shadow: 0 0 10px color-mix(in srgb, var(--backend-stroke) 72%, transparent);
+    }
+    .diagram-guide-actions {
+      display: grid;
+      grid-template-columns: 1fr 1fr;
+      gap: 0.38rem;
+      padding: 0.62rem;
+    }
+    .diagram-guide-action {
+      --guide-accent: var(--frontend-stroke);
+      display: grid;
+      grid-template-columns: auto minmax(0, 1fr) auto;
+      align-items: center;
+      gap: 0.55rem;
+      min-height: 4.15rem;
+      padding: 0.55rem 0.58rem;
+      border: 1px solid color-mix(in srgb, var(--guide-accent) 22%, var(--toolbar-border));
+      border-radius: 0.55rem;
+      background: color-mix(in srgb, var(--panel) 78%, transparent);
+      color: var(--toolbar-text);
+      font: inherit;
+      text-align: left;
+      cursor: pointer;
+      transition: border-color 140ms ease, background 140ms ease, transform 140ms ease;
+    }
+    .diagram-guide-action[data-guide-action="route"] { --guide-accent: var(--backend-stroke); }
+    .diagram-guide-action[data-guide-action="map"] { --guide-accent: var(--database-stroke); }
+    .diagram-guide-action[data-guide-action="lens"] { --guide-accent: var(--messagebus-stroke); }
+    .diagram-guide-action[data-guide-action="story"] { --guide-accent: var(--security-stroke); }
+    .diagram-guide-action[data-guide-action="present"] {
+      --guide-accent: var(--cloud-stroke);
+    }
+    .diagram-guide-action:hover,
+    .diagram-guide-action:focus-visible {
+      border-color: color-mix(in srgb, var(--guide-accent) 76%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--guide-accent) 9%, var(--panel));
+      transform: translateY(-1px);
+    }
+    .diagram-guide-action:focus-visible,
+    .diagram-guide-close:focus-visible {
+      outline: 2px solid var(--cloud-stroke);
+      outline-offset: 1px;
+    }
+    .diagram-guide-action:disabled {
+      opacity: 0.42;
+      cursor: default;
+      transform: none;
+    }
+    .diagram-guide-index {
+      display: grid;
+      place-items: center;
+      width: 1.65rem;
+      height: 1.65rem;
+      border: 1px solid color-mix(in srgb, var(--guide-accent) 64%, var(--toolbar-border));
+      border-radius: 0.35rem;
+      color: var(--guide-accent);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.06em;
+    }
+    .diagram-guide-action-copy { min-width: 0; }
+    .diagram-guide-action strong {
+      display: block;
+      overflow: hidden;
+      color: var(--text);
+      font-size: 0.66rem;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .diagram-guide-action small {
+      display: -webkit-box;
+      margin-top: 0.18rem;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      line-height: 1.35;
+      -webkit-box-orient: vertical;
+      -webkit-line-clamp: 2;
+    }
+    .diagram-guide kbd {
+      align-self: start;
+      min-width: 1.45rem;
+      padding: 0.12rem 0.3rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.25rem;
+      color: var(--text-faint);
+      font: inherit;
+      font-size: 0.5rem;
+      text-align: center;
+    }
+    .diagram-guide-shortcuts {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 0.34rem 0.62rem;
+      padding: 0.58rem 0.9rem 0.68rem;
+      border-top: 1px solid var(--toolbar-border);
+      color: var(--text-faint);
+      font-size: 0.5rem;
+    }
+    .diagram-guide-shortcuts span {
+      display: inline-flex;
+      align-items: center;
+      gap: 0.28rem;
+      white-space: nowrap;
+    }
+    .diagram-guide-feedback {
+      min-height: 1rem;
+      margin: -0.18rem 0.9rem 0.62rem;
+      color: var(--security-stroke);
+      font-size: 0.5rem;
+    }
+    .diagram-guide-feedback:empty { display: none; }
+    @keyframes archify-guide-in {
+      from { opacity: 0; transform: translateY(-5px) scale(0.985); }
+      to { opacity: 1; transform: translateY(0) scale(1); }
+    }
+
+    .node-finder {
+      position: absolute;
+      top: 1rem;
+      left: 1rem;
+      z-index: 24;
+      display: flex;
+      flex-direction: column;
+      width: min(22rem, calc(100% - 2rem));
+      max-height: calc(100% - 2rem);
+      overflow: hidden;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.85rem;
+      background: var(--toolbar-menu-bg);
+      color: var(--toolbar-text);
+      box-shadow: 0 6px 8px rgba(0, 0, 0, 0.22);
+      backdrop-filter: blur(16px);
+    }
+    .node-finder[hidden] { display: none; }
+    .node-finder[data-context="route-source"] {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 68%, var(--toolbar-border));
+    }
+    .node-finder[data-context="route-target"] {
+      border-color: color-mix(in srgb, var(--security-stroke) 68%, var(--toolbar-border));
+    }
+    html[data-preset="blueprint"] .node-finder { border-radius: 0.3rem; }
+    .node-finder-head {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      gap: 1rem;
+      padding: 0.7rem 0.8rem 0.45rem;
+    }
+    .node-finder-head strong {
+      color: var(--text);
+      font-size: 0.6875rem;
+      letter-spacing: 0.08em;
+      text-transform: uppercase;
+    }
+    .node-finder[data-context="route-source"] .node-finder-head strong { color: var(--frontend-stroke); }
+    .node-finder[data-context="route-target"] .node-finder-head strong { color: var(--security-stroke); }
+    .node-finder-close {
+      width: 1.75rem;
+      height: 1.75rem;
+      border: 0;
+      border-radius: 0.35rem;
+      background: transparent;
+      color: var(--toolbar-text);
+      font: inherit;
+      font-size: 1rem;
+      cursor: pointer;
+    }
+    .node-finder-close:hover,
+    .node-finder-close:focus-visible { background: var(--toolbar-hover); }
+    .node-finder-close:focus-visible,
+    .node-finder-result:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: -2px;
+    }
+    .node-finder-search {
+      display: grid;
+      grid-template-columns: auto minmax(0, 1fr) auto;
+      align-items: center;
+      gap: 0.55rem;
+      margin: 0 0.55rem 0.55rem;
+      padding: 0 0.7rem;
+      min-height: 2.6rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.55rem;
+      background: color-mix(in srgb, var(--panel) 78%, transparent);
+      transition: border-color 160ms ease-out, box-shadow 160ms ease-out;
+    }
+    html[data-preset="blueprint"] .node-finder-search { border-radius: 0.18rem; }
+    .node-finder-search > span { color: var(--frontend-stroke); font-size: 0.875rem; }
+    .node-finder-search:focus-within {
+      border-color: var(--frontend-stroke);
+      box-shadow: 0 0 0 2px color-mix(in srgb, var(--frontend-stroke) 20%, transparent);
+    }
+    .node-finder-input {
+      appearance: none;
+      width: 100%;
+      min-width: 0;
+      border: 0;
+      outline: 0;
+      background: transparent;
+      color: var(--text);
+      font: inherit;
+      font-size: 0.75rem;
+    }
+    .node-finder-input:focus-visible { outline: none; }
+    .node-finder-input::placeholder { color: var(--text-faint); }
+    .node-finder kbd {
+      padding: 0.1rem 0.32rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.25rem;
+      color: var(--text-faint);
+      font: inherit;
+      font-size: 0.5625rem;
+    }
+    .node-finder-results {
+      display: grid;
+      flex: 1 1 auto;
+      gap: 0;
+      min-height: 0;
+      max-height: min(18rem, 48vh);
+      margin: 0 0.55rem 0.45rem;
+      padding: 0;
+      overflow-y: auto;
+      overscroll-behavior: contain;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 78%, transparent);
+      border-radius: 0.55rem;
+      background: color-mix(in srgb, var(--panel) 54%, transparent);
+      scroll-padding-block: 0.25rem;
+      scrollbar-width: thin;
+    }
+    html[data-preset="blueprint"] .node-finder-results { border-radius: 0.18rem; }
+    .node-finder-result {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      gap: 0.2rem 0.75rem;
+      width: 100%;
+      min-height: 3.25rem;
+      padding: 0.58rem 0.65rem;
+      border: 0;
+      border-radius: 0;
+      background: transparent;
+      color: var(--text);
+      font: inherit;
+      text-align: left;
+      cursor: pointer;
+      transition: background-color 160ms ease-out;
+    }
+    .node-finder-result:not(:last-child) {
+      border-bottom: 1px solid color-mix(in srgb, var(--toolbar-border) 62%, transparent);
+    }
+    .node-finder-result:hover,
+    .node-finder-result:focus-visible {
+      position: relative;
+      z-index: 1;
+      background: color-mix(in srgb, var(--frontend-fill) 48%, var(--toolbar-hover));
+    }
+    .node-finder-result strong {
+      overflow: hidden;
+      font-size: 0.75rem;
+      line-height: 1.25;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .node-finder-result small {
+      grid-column: 1 / -1;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.5625rem;
+      letter-spacing: 0.015em;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .node-finder-result em {
+      align-self: center;
+      color: var(--frontend-stroke);
+      font-size: 0.625rem;
+      font-style: normal;
+    }
+    .node-finder[data-context^="route-"] .node-finder-result em {
+      padding: 0.1rem 0.3rem;
+      border: 1px solid color-mix(in srgb, currentColor 52%, transparent);
+      border-radius: 999px;
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.05em;
+      text-transform: uppercase;
+    }
+    .node-finder[data-context="route-target"] .node-finder-result em { color: var(--security-stroke); }
+    .node-finder-empty {
+      padding: 1.1rem 0.75rem 1.25rem;
+      color: var(--text-faint);
+      font-size: 0.6875rem;
+      text-align: center;
+    }
+    .node-finder-status {
+      margin: 0;
+      padding: 0.1rem 0.8rem 0.65rem;
+      color: var(--text-faint);
+      font-size: 0.5625rem;
+    }
+
+    .guided-views {
+      display: grid;
+      grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem auto;
+      align-items: stretch;
+      gap: 0.35rem;
+      min-width: 0;
+      margin: 0 0 0.75rem;
+      padding: 0.35rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.85rem;
+      background: var(--toolbar-bg);
+      background: linear-gradient(120deg, var(--toolbar-bg), color-mix(in srgb, var(--toolbar-bg) 82%, var(--frontend-fill)));
+      box-shadow: 0 12px 36px rgba(0, 0, 0, 0.16);
+      backdrop-filter: blur(12px);
+    }
+    .guided-views[hidden] { display: none; }
+
+    html[data-preset="blueprint"] .guided-views {
+      border-color: var(--panel-border);
+      border-radius: 0.35rem;
+      background:
+        linear-gradient(90deg, color-mix(in srgb, var(--frontend-fill) 36%, transparent), transparent 24%),
+        var(--toolbar-bg);
+      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
+    }
+    html[data-preset="blueprint"] .guided-views button { border-radius: 0.2rem; }
+    html[data-preset="blueprint"] .guided-view-progress { border-radius: 0; }
+    html[data-preset="blueprint"] .guided-view-progress span { border-radius: 0; }
+    .guided-views button {
+      min-width: 0;
+      padding: 0.45rem 0.6rem;
+      border-radius: 0.55rem;
+      font-size: 0.75rem;
+    }
+    .guided-views > #guided-view-prev,
+    .guided-views > #guided-view-next { min-width: 2.75rem; min-height: 2.75rem; }
+    .guided-views button:disabled { opacity: 0.3; cursor: default; }
+    .guided-view-copy {
+      min-width: 0;
+      padding: 0.2rem 0.5rem;
+      border-left: 1px solid var(--toolbar-border);
+      overflow: hidden;
+    }
+    .guided-view-meta {
+      display: flex;
+      align-items: center;
+      gap: 0.5rem;
+      min-height: 1rem;
+      margin-bottom: 0.12rem;
+      color: var(--frontend-stroke);
+      font-size: 0.5625rem;
+      font-weight: 700;
+      letter-spacing: 0.12em;
+      text-transform: uppercase;
+    }
+    .guided-view-handoff {
+      box-sizing: border-box;
+      height: 1rem;
+      min-width: 0;
+      max-width: 15rem;
+      overflow: hidden;
+      padding: 0 0.38rem;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 46%, transparent);
+      border-radius: 999px;
+      color: var(--toolbar-text);
+      background: color-mix(in srgb, var(--frontend-fill) 44%, transparent);
+      font-size: 0.5rem;
+      line-height: calc(1rem - 2px);
+      letter-spacing: 0.06em;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .guided-view-handoff[hidden] { display: none; }
+    html[data-preset="blueprint"] .guided-view-handoff { border-radius: 0.15rem; }
+    .chapter-handoff-overlay { pointer-events: none; }
+    .chapter-handoff-anchor {
+      fill: color-mix(in srgb, var(--frontend-fill) 10%, transparent);
+      stroke: var(--frontend-stroke);
+      stroke-width: 2;
+      stroke-dasharray: 4 4;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.96;
+      animation: archify-chapter-anchor 0.42s cubic-bezier(0.22, 1, 0.36, 1) both;
+    }
+    svg[data-chapter-handoff] [data-node-id][data-chapter-role="stay"] { opacity: 1; }
+    svg[data-chapter-handoff] [data-node-id][data-chapter-role="enter"] { opacity: 0.78; }
+    svg[data-chapter-handoff] [data-node-id][data-chapter-role="leave"] { opacity: 0.26; }
+    @keyframes archify-chapter-anchor {
+      0% { opacity: 0.35; stroke-dashoffset: 8; }
+      45% { opacity: 1; }
+      100% { opacity: 0.72; stroke-dashoffset: 0; }
+    }
+    .guided-view-progress {
+      width: 3.5rem;
+      height: 2px;
+      overflow: hidden;
+      border-radius: 999px;
+      background: var(--toolbar-border);
+    }
+    .guided-view-progress span {
+      display: block;
+      width: 100%;
+      height: 100%;
+      border-radius: inherit;
+      background: var(--frontend-stroke);
+      transform: scaleX(0);
+      transform-origin: left center;
+    }
+    .guided-view-copy strong,
+    .guided-view-copy small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+    .guided-view-copy strong { color: var(--toolbar-text); font-size: 0.75rem; line-height: 1.35; }
+    .guided-view-copy small { margin-top: 0; color: var(--text-muted); font-size: 0.625rem; line-height: 1.35; }
+    .guided-story-caption {
+      display: grid;
+      grid-template-columns: auto minmax(0, 1fr) auto;
+      gap: 0.12rem 0.55rem;
+      align-items: center;
+      min-width: 0;
+      margin-top: 0.18rem;
+      padding: 0.3rem 0.5rem;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 32%, var(--toolbar-border));
+      border-radius: 0.58rem;
+      background: color-mix(in srgb, var(--frontend-fill) 26%, transparent);
+      animation: archify-story-caption-in 140ms cubic-bezier(0.22, 1, 0.36, 1) both;
+    }
+    .guided-story-caption[hidden] { display: none; }
+    .guided-story-caption-index {
+      grid-row: 1 / span 2;
+      align-self: stretch;
+      display: inline-grid;
+      min-width: 3.3rem;
+      place-items: center;
+      padding-right: 0.52rem;
+      border-right: 1px solid color-mix(in srgb, var(--frontend-stroke) 28%, var(--toolbar-border));
+      color: var(--frontend-stroke);
+      font-size: 0.5625rem;
+      font-weight: 800;
+      letter-spacing: 0.08em;
+      text-transform: uppercase;
+    }
+    .guided-story-caption strong,
+    .guided-story-caption small {
+      display: block;
+      min-width: 0;
+      overflow: hidden;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .guided-story-caption strong { color: var(--toolbar-text); font-size: 0.6875rem; line-height: 1.3; }
+    .guided-story-caption small { color: var(--text-muted); font-size: 0.5625rem; line-height: 1.35; }
+    .guided-story-caption-next {
+      grid-column: 3;
+      grid-row: 1 / span 2;
+      display: grid;
+      min-width: 6.4rem;
+      max-width: 9.5rem;
+      align-self: stretch;
+      align-content: center;
+      padding-left: 0.58rem;
+      border-left: 1px solid color-mix(in srgb, var(--frontend-stroke) 22%, var(--toolbar-border));
+    }
+    .guided-story-caption-next[hidden] { display: none; }
+    .guided-story-caption-next small {
+      color: color-mix(in srgb, var(--frontend-stroke) 72%, var(--text-muted));
+      font-weight: 800;
+      letter-spacing: 0.09em;
+      text-transform: uppercase;
+    }
+    .guided-story-caption-next strong { color: var(--text-muted); font-weight: 700; }
+    html[data-preset="blueprint"] .guided-story-caption { border-radius: 0.2rem; }
+    .guided-views[data-story-beat] .guided-view-copy > #guided-view-label,
+    .guided-views[data-story-beat] .guided-view-copy > #guided-view-note { display: none; }
+    @keyframes archify-story-caption-in {
+      from { opacity: 0; transform: translateY(3px); }
+      to { opacity: 1; transform: translateY(0); }
+    }
+    .guided-view-trail {
+      display: flex;
+      align-items: center;
+      gap: 0.28rem;
+      min-width: 0;
+      min-height: 1.7rem;
+      margin-top: 0;
+      padding: 0;
+      overflow-x: auto;
+      color: var(--text-faint);
+      overscroll-behavior-x: contain;
+      touch-action: pan-x;
+      scrollbar-width: none;
+      white-space: nowrap;
+    }
+    .guided-view-trail[hidden] { display: none; }
+    .guided-view-trail::-webkit-scrollbar { display: none; }
+    .guided-view-trail .guided-view-stop {
+      appearance: none;
+      box-sizing: border-box;
+      display: inline-flex;
+      flex: 0 0 auto;
+      align-items: center;
+      gap: 0.28rem;
+      min-height: 1.5rem;
+      padding: 0.1rem 0.3rem 0.1rem 0.18rem;
+      border: 1px solid transparent;
+      border-radius: 999px;
+      background: transparent;
+      color: var(--text-muted);
+      cursor: pointer;
+      font-family: inherit;
+      font-size: 0.5625rem;
+      font-weight: 650;
+      letter-spacing: 0.02em;
+      line-height: 1;
+      transition: background 140ms ease, border-color 140ms ease, color 140ms ease, opacity 140ms ease;
+    }
+    .guided-view-stop:hover {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 36%, transparent);
+      background: color-mix(in srgb, var(--frontend-fill) 34%, transparent);
+    }
+    .guided-view-stop:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 1px;
+    }
+    .guided-view-stop:disabled { cursor: wait; }
+    .guided-view-stop::before {
+      display: inline-grid;
+      width: 1rem;
+      height: 1rem;
+      place-items: center;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 54%, var(--toolbar-border));
+      border-radius: 50%;
+      background: color-mix(in srgb, var(--frontend-fill) 58%, var(--toolbar-bg));
+      color: var(--frontend-stroke);
+      content: attr(data-story-number);
+      font-size: 0.5rem;
+      line-height: 1;
+    }
+    .guided-view-stop + .guided-view-stop::after {
+      order: -1;
+      color: color-mix(in srgb, var(--frontend-stroke) 58%, var(--text-faint));
+      content: '\00b7';
+      font-size: 0.65rem;
+    }
+    .guided-view-stop[data-story-link="forward"]::after { content: '\2192'; }
+    .guided-view-stop[data-story-link="reverse"]::after { content: '\2190'; }
+    .guided-view-stop[data-story-link="multiple"]::after { content: '\21c4'; }
+    .guided-view-stop[data-story-beat-state="pending"] { opacity: 0.38; }
+    .guided-view-stop[data-story-beat-state="next"] {
+      border-style: dashed;
+      border-color: color-mix(in srgb, var(--frontend-stroke) 42%, var(--toolbar-border));
+      color: color-mix(in srgb, var(--toolbar-text) 68%, var(--text-muted));
+      opacity: 0.58;
+    }
+    .guided-view-stop[data-story-beat-state="past"] { color: var(--text-muted); opacity: 0.76; }
+    .guided-view-stop[data-story-beat-state="active"] {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 72%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--frontend-fill) 42%, transparent);
+      color: var(--toolbar-text);
+      font-weight: 800;
+      opacity: 1;
+    }
+    .guided-view-stop[data-story-beat-state="active"]::before {
+      border-color: var(--frontend-stroke);
+      box-shadow: 0 0 10px color-mix(in srgb, var(--frontend-stroke) 54%, transparent);
+    }
+    html[data-preset="blueprint"] .guided-view-stop,
+    html[data-preset="blueprint"] .guided-view-stop::before { border-radius: 0.1rem; }
+    html[data-preset="blueprint"] .guided-view-stop[data-story-beat-state="active"]::before { box-shadow: none; }
+    .guided-view-actions { display: flex; align-items: stretch; gap: 0.2rem; }
+    .guided-view-actions button { white-space: nowrap; }
+    .guided-view-play {
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+      gap: 0.38rem;
+      min-width: 6.25rem !important;
+      color: var(--frontend-stroke) !important;
+      font-size: 0.625rem !important;
+    }
+    .guided-view-play[aria-pressed="true"] { background: var(--toolbar-hover); }
+    .guided-view-all { min-width: 3.25rem !important; color: var(--text-muted) !important; font-size: 0.625rem !important; }
+    .guided-view-beat-link {
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+      gap: 0.3rem;
+      min-width: 5.4rem !important;
+      min-height: 1.5rem;
+      color: var(--text-muted) !important;
+      font-size: 0.5625rem !important;
+      letter-spacing: 0.025em;
+      transition: background 140ms ease, border-color 140ms ease, color 140ms ease;
+    }
+    .guided-view-beat-link:not(:disabled):hover {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 52%, var(--toolbar-border));
+      color: var(--frontend-stroke) !important;
+    }
+    .guided-view-beat-link[data-copy-state="copied"] {
+      border-color: color-mix(in srgb, var(--backend-stroke) 58%, var(--toolbar-border));
+      background: color-mix(in srgb, var(--backend-fill) 46%, transparent);
+      color: var(--backend-stroke) !important;
+    }
+    .guided-view-index {
+      grid-column: 1 / -1;
+      min-width: 0;
+      padding: 0.28rem 0.12rem 0.08rem;
+      overflow: hidden;
+      border-top: 1px solid color-mix(in srgb, var(--toolbar-border) 72%, transparent);
+    }
+    @media (min-width: 721px) {
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-index,
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-beat-link,
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-all,
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-trail,
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-copy > #guided-view-label,
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-view-copy > #guided-view-note { display: none; }
+      html[data-present="true"]:not([data-embed="true"]) .guided-views[data-playing="true"] .guided-story-caption { margin-top: 0.08rem; }
+    }
+    .guided-view-chapters {
+      display: flex;
+      gap: 0.28rem;
+      min-width: 0;
+      margin: 0;
+      padding: 0.08rem 0.05rem 0.2rem;
+      overflow-x: auto;
+      list-style: none;
+      scroll-padding-inline: 0.05rem;
+      scroll-snap-type: x proximity;
+      scrollbar-width: none;
+    }
+    .guided-view-chapters::-webkit-scrollbar { display: none; }
+    .guided-view-chapters li {
+      display: flex;
+      flex: 1 1 0;
+      min-width: 9.5rem;
+      scroll-snap-align: center;
+    }
+    .guided-view-chapter {
+      position: relative;
+      display: grid !important;
+      grid-template-columns: 1.55rem minmax(0, 1fr) auto;
+      align-items: center;
+      width: 100%;
+      min-height: 2.75rem;
+      padding: 0.36rem 0.48rem !important;
+      overflow: hidden;
+      border: 1px solid color-mix(in srgb, var(--toolbar-border) 86%, transparent) !important;
+      border-radius: 0.48rem !important;
+      background: color-mix(in srgb, var(--toolbar-bg) 88%, transparent) !important;
+      color: var(--text-muted) !important;
+      text-align: left;
+      transition: background 0.16s ease, border-color 0.16s ease, opacity 0.16s ease;
+    }
+    .guided-view-chapter:hover {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 58%, var(--toolbar-border)) !important;
+      background: color-mix(in srgb, var(--frontend-fill) 42%, var(--toolbar-bg)) !important;
+    }
+    .guided-view-chapter:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 1px;
+    }
+    .guided-view-chapter-index {
+      display: inline-grid;
+      width: 1.32rem;
+      height: 1.32rem;
+      place-items: center;
+      border: 1px solid color-mix(in srgb, var(--frontend-stroke) 48%, var(--toolbar-border));
+      border-radius: 50%;
+      color: var(--frontend-stroke);
+      font-size: 0.5rem;
+      font-weight: 800;
+      letter-spacing: 0.03em;
+    }
+    .guided-view-chapter-title {
+      min-width: 0;
+      overflow: hidden;
+      color: var(--toolbar-text);
+      font-size: 0.625rem;
+      font-weight: 700;
+      line-height: 1.3;
+      text-overflow: ellipsis;
+      white-space: nowrap;
+    }
+    .guided-view-chapter-count {
+      grid-column: 3;
+      grid-row: 1;
+      margin-left: 0.38rem;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      font-style: normal;
+      font-weight: 650;
+      white-space: nowrap;
+    }
+    .guided-view-chapter-delta {
+      display: inline-flex;
+      grid-column: 3;
+      grid-row: 1;
+      align-items: center;
+      gap: 0.22rem;
+      margin-left: 0.38rem;
+      color: var(--text-faint);
+      font-size: 0.5rem;
+      font-weight: 750;
+      letter-spacing: 0.01em;
+      white-space: nowrap;
+    }
+    .guided-view-chapter-delta[hidden] { display: none; }
+    .guided-view-chapter-delta [data-delta-kind="stay"] { color: var(--text-muted); }
+    .guided-view-chapter-delta [data-delta-kind="enter"] { color: var(--frontend-stroke); }
+    .guided-view-chapter-delta [data-delta-kind="leave"] { color: var(--security-stroke); }
+    .guided-view-chapter[data-preview-active="true"] {
+      border-color: color-mix(in srgb, var(--frontend-stroke) 72%, var(--toolbar-border)) !important;
+      background: color-mix(in srgb, var(--frontend-fill) 54%, var(--toolbar-bg)) !important;
+    }
+    .guided-view-chapter[data-chapter-position="current"] {
+      border: 2px solid var(--frontend-stroke) !important;
+      padding: calc(0.36rem - 1px) calc(0.48rem - 1px) !important;
+      box-shadow: inset 3px 0 0 var(--frontend-stroke);
+      color: var(--toolbar-text) !important;
+    }
+    .guided-view-chapter[data-chapter-position="current"] .guided-view-chapter-index {
+      background: var(--frontend-stroke);
+      color: var(--bg);
+    }
+    .guided-view-chapter[data-chapter-position="before"] {
+      border-style: solid !important;
+      opacity: 0.72;
+    }
+    .guided-view-chapter[data-chapter-position="after"] { border-style: dashed !important; }
+    html[data-preset="signal-flow"] .guided-view-chapter[data-chapter-position="current"] {
+      box-shadow: inset 3px 0 0 var(--frontend-stroke), 0 0 18px color-mix(in srgb, var(--frontend-stroke) 18%, transparent);
+    }
+    html[data-preset="blueprint"] .guided-view-chapter,
+    html[data-preset="blueprint"] .guided-view-chapter-index { border-radius: 0.12rem !important; }
+
+    /* Story Shelf — keep every authored chapter and the Play action visible,
+       but do not spend a second row on unavailable director controls before
+       the reader enters a chapter. Existing data-active-view state expands
+       the full guided surface without a new toggle or stored preference. */
+    .guided-views[data-active-view="all"] {
+      grid-template-columns: minmax(11rem, .72fr) auto minmax(0, 2fr);
+      align-items: center;
+      padding: 0.28rem 0.35rem;
+    }
+    .guided-views[data-active-view="all"] > #guided-view-prev,
+    .guided-views[data-active-view="all"] > #guided-view-next,
+    .guided-views[data-active-view="all"] .guided-view-beat-link,
+    .guided-views[data-active-view="all"] .guided-view-all { display: none; }
+    .guided-views[data-active-view="all"] .guided-view-copy {
+      grid-column: 1;
+      grid-row: 1;
+      padding: 0.1rem 0.55rem;
+    }
+    .guided-views[data-active-view="all"] .guided-view-copy > #guided-view-note { display: none; }
+    .guided-views[data-active-view="all"] .guided-view-actions {
+      display: block;
+      grid-column: 2;
+      grid-row: 1;
+    }
+    .guided-views[data-active-view="all"] .guided-view-play { min-height: 2.75rem; }
+    .guided-views[data-active-view="all"] .guided-view-index {
+      grid-column: 3;
+      grid-row: 1;
+      padding: 0 0.08rem 0 0.42rem;
+      border-top: 0;
+      border-left: 1px solid color-mix(in srgb, var(--toolbar-border) 72%, transparent);
+    }
+    .guided-views[data-active-view="all"] .guided-view-chapters {
+      gap: 0.3rem;
+      padding: 0;
+    }
+
+    .cards {
+      display: grid;
+      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
+      gap: 1rem;
+      margin-top: 2rem;
+    }
+
+    .card {
+      background: var(--panel);
+      border-radius: 0.75rem;
+      border: 1px solid var(--panel-border);
+      padding: 1.25rem;
+    }
+
+    html[data-preset="signal-flow"] .card {
+      background: linear-gradient(145deg, rgba(10, 24, 43, 0.86), rgba(5, 12, 24, 0.92));
+      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
+    }
+    html[data-preset="signal-flow"][data-theme="light"] .card {
+      background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(237, 246, 250, 0.9));
+      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.82), 0 12px 32px rgba(45, 78, 99, 0.08);
+    }
+
+    /* Preserve the one-screen guarantee on ordinary laptop displays. The
+       high-screen expansion above must not trade a fuller canvas for page
+       scrolling at 900–1080px heights. */
+    @media (min-width: 768px) and (max-height: 1100px) {
+      .header { margin-bottom: 1rem; }
+      .diagram-container {
+        padding: 0.875rem;
+        padding-bottom: calc(0.875rem + var(--archify-nav-reserve));
+      }
+      .cards { margin-top: 1rem; }
+      .card { padding: 1rem; }
+    }
+    @media (min-width: 768px) and (max-height: 920px) {
+      body { padding-block: 1.25rem; }
+      .header { margin-bottom: 0.875rem; }
+      .cards { margin-top: 0.75rem; }
+      html[data-nav-stage-rail="true"] body { padding-block: 0.375rem; }
+      html[data-nav-stage-rail="true"] .header { margin-bottom: 0.5rem; }
+      html[data-nav-stage-rail="true"] .guided-views { margin-bottom: 0.375rem; }
+      html[data-nav-stage-rail="true"] .diagram-container[data-nav-stage-rail="true"] { padding-top: 0.5rem; }
+      html[data-nav-stage-rail="true"] .cards { margin-top: 0.375rem; }
+    }
+
+    html[data-preset="blueprint"] .card {
+      position: relative;
+      border-color: var(--panel-border);
+      border-radius: 0.3rem;
+      background: var(--panel);
+      box-shadow: none;
+    }
+    html[data-preset="blueprint"] .card::before {
+      content: "";
+      position: absolute;
+      top: -1px;
+      left: 1rem;
+      width: 2.5rem;
+      border-top: 2px solid var(--frontend-stroke);
+    }
+
+    html[data-preset="editorial"] .card {
+      position: relative;
+      border-radius: 0.28rem;
+      background: var(--panel);
+      box-shadow: 0 10px 28px color-mix(in srgb, #000 10%, transparent);
+    }
+    html[data-preset="editorial"] .card::before {
+      position: absolute;
+      top: -1px;
+      left: 1.25rem;
+      width: 3.25rem;
+      border-top: 3px solid var(--arrow-emphasis);
+      content: "";
+    }
+    html[data-preset="editorial"] .card-dot { border-radius: 0; transform: rotate(45deg) scale(0.78); }
+
+    .card-header {
+      display: flex;
+      align-items: center;
+      gap: 0.5rem;
+      margin-bottom: 0.75rem;
+    }
+
+    .card-dot {
+      width: 8px;
+      height: 8px;
+      border-radius: 50%;
+    }
+
+    .card-dot.cyan     { background: var(--frontend-stroke); }
+    .card-dot.emerald  { background: var(--backend-stroke); }
+    .card-dot.violet   { background: var(--database-stroke); }
+    .card-dot.amber    { background: var(--cloud-stroke); }
+    .card-dot.rose     { background: var(--security-stroke); }
+    .card-dot.orange   { background: var(--messagebus-stroke); }
+    .card-dot.slate    { background: var(--external-stroke); }
+
+    .card h3 { font-size: 0.875rem; font-weight: 600; color: var(--text); }
+
+    .card ul {
+      list-style: none;
+      color: var(--text-muted);
+      font-size: 0.75rem;
+    }
+
+    .card li { margin-bottom: 0.375rem; }
+
+    /* ==========================================================
+       Print stylesheet — hide interactive controls, force light,
+       drop the grid so the diagram doesn't waste ink, use landscape
+       so wide diagrams fit, pack summary cards into 2 columns to
+       avoid an orphan card on a trailing page.
+       ========================================================== */
+    @page { size: landscape; margin: 1.5cm; }
+
+    @media print {
+      /* Force the FULL light palette — including component fills/strokes and
+         lane/arrow colors — so printing from dark theme doesn't put neon
+         strokes and translucent dark fills on white paper. */
+      :root, [data-theme="dark"], [data-theme="light"] {
+        --bg: #ffffff;
+        --grid: transparent;
+        --panel: #ffffff;
+        --panel-border: #e2e8f0;
+        --text: #0f172a;
+        --text-muted: #475569;
+        --text-dim: #94a3b8;
+        --text-faint: #64748b;
+        --mask: #ffffff;
+        --lane-fill: rgba(248, 250, 252, 0.65);
+        --lane-stroke: #cbd5e1;
+        --arrow: #94a3b8;
+        --arrow-emphasis: #059669;
+        --frontend-fill:    rgba(34, 211, 238, 0.15);
+        --frontend-stroke:  #0891b2;
+        --backend-fill:     rgba(52, 211, 153, 0.18);
+        --backend-stroke:   #059669;
+        --database-fill:    rgba(167, 139, 250, 0.2);
+        --database-stroke:  #7c3aed;
+        --cloud-fill:       rgba(251, 191, 36, 0.18);
+        --cloud-stroke:     #d97706;
+        --security-fill:    rgba(251, 113, 133, 0.15);
+        --security-stroke:  #e11d48;
+        --messagebus-fill:  rgba(251, 146, 60, 0.15);
+        --messagebus-stroke:#ea580c;
+        --external-fill:    rgba(148, 163, 184, 0.18);
+        --external-stroke:  #64748b;
+      }
+      body { background: #ffffff !important; padding: 0; }
+      .container { max-width: none; }
+      .toolbar, .diagram-nav, .focus-chip, .guided-views, .archify-toast, .no-print { display: none !important; }
+      .chapter-handoff-overlay { display: none !important; }
+      svg [data-node-id][data-chapter-role] { opacity: 1 !important; }
+      svg[data-chapter-preview] [data-node-id],
+      svg[data-chapter-preview] [data-edge-from] { opacity: 1 !important; filter: none !important; }
+      .diagram-container, .card { box-shadow: none; border-color: #e2e8f0; }
+      .diagram-container { --archify-nav-reserve: 0px !important; }
+      html[data-preset="signal-flow"] .diagram-container,
+      html[data-preset="signal-flow"] .card { background: #ffffff; }
+      .cards { grid-template-columns: 1fr 1fr; }
+      /* Ensure elements break sensibly across pages */
+      .card { break-inside: avoid; page-break-inside: avoid; }
+      .diagram-container { break-inside: avoid; page-break-inside: avoid; }
+      .diagram-container svg [data-detail] {
+        opacity: 1 !important;
+        pointer-events: auto !important;
+      }
+      .diagram-container svg [data-detail-anchor] { transform: none !important; }
+      .diagram-container svg[data-lens-active] [data-node-id],
+      .diagram-container svg[data-lens-active] [data-edge-from],
+      .diagram-container svg[data-legend-preview-active] [data-node-id],
+      .diagram-container svg[data-legend-preview-active] [data-edge-from] {
+        opacity: 1 !important;
+        filter: none !important;
+      }
+      [data-legend-bridge-runtime] { display: none !important; }
+      .semantic-lens-overlay { display: none !important; }
+      .relationship-hit-overlay { display: none !important; }
+      .relationship-pulse-overlay { display: none !important; }
+      .route-probe-overlay, .route-journey-overlay { display: none !important; }
+      .story-trail-overlay,
+      .story-carrier-overlay { display: none !important; }
+      .diagram-container svg[data-focus-active] [data-node-id],
+      .diagram-container svg[data-focus-active] [data-edge-from],
+      .diagram-container svg[data-reach-active] [data-node-id],
+      .diagram-container svg[data-reach-active] [data-edge-from],
+      .diagram-container svg[data-story-beat] [data-story-step],
+      .diagram-container svg[data-story-beat] [data-edge-from][data-story-beat-step],
+      .diagram-container svg[data-route-active] [data-node-id],
+      .diagram-container svg[data-route-active] [data-edge-from] {
+        opacity: 1 !important;
+        filter: none !important;
+        animation: none !important;
+      }
+      h1, .subtitle { color: #0f172a; }
+    }
+
+    /* ==========================================================
+       TOOLBAR (theme toggle + export menu)
+       ========================================================== */
+    .toolbar {
+      position: fixed;
+      top: 1rem;
+      right: 1rem;
+      display: flex;
+      align-items: center;
+      gap: 0.5rem;
+      padding: 0;
+      border: 0;
+      background: transparent;
+      box-shadow: none;
+      z-index: 100;
+    }
+    .toolbar button {
+      background: var(--toolbar-bg);
+      color: var(--toolbar-text);
+      border: 1px solid var(--toolbar-border);
+      padding: 0.5rem 0.875rem;
+      border-radius: 0.625rem;
+      font-family: inherit;
+      font-size: 0.75rem;
+      font-weight: 500;
+      cursor: pointer;
+      white-space: nowrap;
+      backdrop-filter: blur(10px);
+      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
+      transition: background 0.15s, border-color 0.15s, color 0.15s;
+      display: inline-flex;
+      align-items: center;
+      gap: 0.375rem;
+      min-height: 2.75rem;
+    }
+    .toolbar button:hover {
+      background: var(--toolbar-hover);
+      border-color: color-mix(in srgb, var(--arrow) 62%, var(--toolbar-border));
+    }
+    .toolbar button[aria-expanded="true"],
+    .toolbar button[aria-pressed="true"]:not(#btn-theme) {
+      background: color-mix(in srgb, var(--frontend-stroke) 10%, var(--toolbar-hover));
+      border-color: color-mix(in srgb, var(--frontend-stroke) 48%, var(--toolbar-border));
+    }
+    .toolbar #btn-export {
+      padding-right: 0.82rem;
+      padding-left: 0.82rem;
+    }
+    .toolbar #btn-export:hover,
+    .toolbar #btn-export[aria-expanded="true"] {
+      color: var(--toolbar-text);
+      background: color-mix(in srgb, var(--frontend-stroke) 10%, var(--toolbar-hover));
+      border-color: color-mix(in srgb, var(--frontend-stroke) 54%, var(--toolbar-border));
+    }
+    .toolbar button:focus-visible {
+      outline: 2px solid var(--frontend-stroke);
+      outline-offset: 2px;
+    }
+    .toolbar #btn-motion[hidden] { display: none !important; }
+    .toolbar #btn-motion { min-width: 4.4rem; }
+    .toolbar #btn-motion:disabled { cursor: default; opacity: 0.58; }
+    .toolbar .preset-wrap,
+    .toolbar .export-wrap {
+      position: relative;
+    }
+    .toolbar-icon {
+      display: inline-block;
+      width: 0.95rem;
+      height: 0.95rem;
+      flex: 0 0 auto;
+      background: currentColor;
+      -webkit-mask-position: center;
+      -webkit-mask-repeat: no-repeat;
+      -webkit-mask-size: contain;
+      mask-position: center;
+      mask-repeat: no-repeat;
+      mask-size: contain;
+    }
+    .toolbar-chevron {
+      width: 0.65rem;
+      height: 0.65rem;
+      transition: transform 0.15s ease;
+    }
+    [aria-expanded="true"] > .toolbar-chevron { transform: rotate(180deg); }
+    [data-theme="light"] #theme-icon {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cg fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'%3E%3Ccircle cx='10' cy='10' r='3.1'/%3E%3Cpath d='M10 2.2v1.4M10 16.4v1.4M2.2 10h1.4M16.4 10h1.4M4.5 4.5l1 1M14.5 14.5l1 1M15.5 4.5l-1 1M5.5 14.5l-1 1'/%3E%3C/g%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cg fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'%3E%3Ccircle cx='10' cy='10' r='3.1'/%3E%3Cpath d='M10 2.2v1.4M10 16.4v1.4M2.2 10h1.4M16.4 10h1.4M4.5 4.5l1 1M14.5 14.5l1 1M15.5 4.5l-1 1M5.5 14.5l-1 1'/%3E%3C/g%3E%3C/svg%3E");
+    }
+    [data-theme="dark"] #theme-icon {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M15.2 12.7A6.3 6.3 0 017.3 4.8a6.3 6.3 0 107.9 7.9Z' fill='none' stroke='black' stroke-width='1.7' stroke-linejoin='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M15.2 12.7A6.3 6.3 0 017.3 4.8a6.3 6.3 0 107.9 7.9Z' fill='none' stroke='black' stroke-width='1.7' stroke-linejoin='round'/%3E%3C/svg%3E");
+    }
+    #btn-present[aria-pressed="false"] #present-icon {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M7.2 3.2h-4v4M12.8 3.2h4v4M7.2 16.8h-4v-4M12.8 16.8h4v-4' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M7.2 3.2h-4v4M12.8 3.2h4v4M7.2 16.8h-4v-4M12.8 16.8h4v-4' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    #btn-present[aria-pressed="true"] #present-icon {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M7.2 7.2h-4v-4M12.8 7.2h4v-4M7.2 12.8h-4v4M12.8 12.8h4v4' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M7.2 7.2h-4v-4M12.8 7.2h4v-4M7.2 12.8h-4v4M12.8 12.8h4v4' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round'/%3E%3C/svg%3E");
+    }
+    .toolbar-chevron {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='m3 4.5 3 3 3-3' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='m3 4.5 3 3 3-3' fill='none' stroke='black' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+    }
+    .toolbar #btn-preset { min-width: 5.4rem; }
+    .preset-control-mark {
+      width: 0.58rem;
+      height: 0.58rem;
+      flex: 0 0 auto;
+      border: 1px solid var(--frontend-stroke);
+      border-radius: 0.2rem;
+      background: color-mix(in srgb, var(--frontend-stroke) 28%, transparent);
+      transition: border-radius 0.15s, box-shadow 0.15s, transform 0.15s;
+    }
+    #btn-preset[data-preset-option="signal-flow"] .preset-control-mark {
+      border-radius: 50%;
+      box-shadow: 0 0 10px color-mix(in srgb, var(--frontend-stroke) 78%, transparent);
+    }
+    #btn-preset[data-preset-option="blueprint"] .preset-control-mark {
+      border-radius: 0.06rem;
+      background: transparent;
+      box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--frontend-stroke) 32%, transparent);
+      transform: rotate(45deg) scale(0.84);
+    }
+    #btn-preset[data-preset-option="editorial"] .preset-control-mark {
+      border-color: var(--arrow-emphasis);
+      border-radius: 0;
+      background: var(--arrow-emphasis);
+      box-shadow: 0 0 0 2px color-mix(in srgb, var(--arrow-emphasis) 14%, transparent);
+      transform: rotate(45deg) scale(0.72);
+    }
+    .toolbar .preset-menu {
+      position: absolute;
+      top: calc(100% + 0.375rem);
+      right: 0;
+      display: none;
+      width: 18.5rem;
+      max-width: calc(100vw - 2rem);
+      padding: 0.45rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.875rem;
+      background: var(--toolbar-menu-bg);
+      box-shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
+    }
+    .toolbar .preset-menu.open { display: block; }
+    .toolbar .preset-menu.open,
+    .toolbar .export-menu.open {
+      animation: toolbar-menu-in 0.16s cubic-bezier(0.2, 0.8, 0.2, 1);
+      transform-origin: top right;
+    }
+    @keyframes toolbar-menu-in {
+      from { opacity: 0; transform: translateY(-0.25rem) scale(0.985); }
+      to { opacity: 1; transform: translateY(0) scale(1); }
+    }
+    .preset-menu-heading {
+      display: flex;
+      align-items: baseline;
+      justify-content: space-between;
+      gap: 1rem;
+      padding: 0.42rem 0.6rem 0.55rem;
+      color: var(--text-faint);
+      font-size: 0.56rem;
+      letter-spacing: 0.13em;
+      text-transform: uppercase;
+    }
+    .preset-menu-heading span:last-child {
+      font-size: 0.52rem;
+      letter-spacing: 0.04em;
+      text-transform: none;
+    }
+    .toolbar .preset-option {
+      display: grid;
+      grid-template-columns: 2rem minmax(0, 1fr) 1rem;
+      align-items: center;
+      gap: 0.68rem;
+      width: 100%;
+      min-height: 3.35rem;
+      padding: 0.5rem 0.62rem;
+      border: 0;
+      border-radius: 0.5rem;
+      background: transparent;
+      box-shadow: none;
+      backdrop-filter: none;
+      text-align: left;
+    }
+    .toolbar .preset-option:hover,
+    .toolbar .preset-option:focus-visible { background: var(--toolbar-hover); }
+    .toolbar .preset-option[aria-checked="true"] {
+      background: color-mix(in srgb, var(--frontend-stroke) 9%, transparent);
+      border-color: color-mix(in srgb, var(--frontend-stroke) 36%, transparent);
+    }
+    .preset-option-swatch {
+      position: relative;
+      width: 2rem;
+      height: 1.55rem;
+      overflow: hidden;
+      border: 1px solid #64748b;
+      border-radius: 0.24rem;
+      background: #0f172a;
+      box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04);
+    }
+    .preset-option-swatch::before,
+    .preset-option-swatch::after { position: absolute; content: ""; }
+    .preset-option-swatch.classic::before {
+      top: 0.42rem;
+      right: 0.35rem;
+      bottom: 0.42rem;
+      left: 0.35rem;
+      border: 1px solid #22d3ee;
+      border-radius: 0.16rem;
+      background: rgba(34, 211, 238, 0.14);
+    }
+    .preset-option-swatch.signal-flow {
+      border-color: #29415f;
+      background: linear-gradient(135deg, #07101e 10%, #10243c 100%);
+    }
+    .preset-option-swatch.signal-flow::before {
+      top: 50%;
+      right: 0.2rem;
+      left: 0.2rem;
+      height: 1px;
+      background: linear-gradient(90deg, #67e8f9, #c4b5fd);
+      box-shadow: 0 0 8px #67e8f9;
+    }
+    .preset-option-swatch.signal-flow::after {
+      top: calc(50% - 0.13rem);
+      right: 0.28rem;
+      width: 0.26rem;
+      height: 0.26rem;
+      border-radius: 50%;
+      background: #67e8f9;
+      box-shadow: 0 0 7px #67e8f9;
+    }
+    .preset-option-swatch.blueprint {
+      border-color: #34799a;
+      border-radius: 0.08rem;
+      background-color: #0a2031;
+      background-image:
+        linear-gradient(rgba(102, 217, 239, 0.18) 1px, transparent 1px),
+        linear-gradient(90deg, rgba(102, 217, 239, 0.18) 1px, transparent 1px);
+      background-size: 0.42rem 0.42rem;
+    }
+    .preset-option-swatch.blueprint::before {
+      top: 0.34rem;
+      right: 0.38rem;
+      bottom: 0.34rem;
+      left: 0.38rem;
+      border: 1px solid #66d9ef;
+    }
+    .preset-option-swatch.editorial {
+      border-color: #b8aa94;
+      border-radius: 0.08rem;
+      background: repeating-linear-gradient(0deg, #f2eee5 0 0.34rem, #d8d0c2 0.36rem, #f2eee5 0.38rem);
+    }
+    .preset-option-swatch.editorial::before {
+      top: 0;
+      bottom: 0;
+      left: 0.42rem;
+      width: 1px;
+      background: #c9502d;
+      opacity: 0.72;
+    }
+    .preset-option-swatch.editorial::after {
+      top: 0.52rem;
+      right: 0.45rem;
+      width: 0.38rem;
+      height: 0.38rem;
+      background: #c9502d;
+      transform: rotate(45deg);
+    }
+    .preset-option-copy { min-width: 0; }
+    .preset-option-copy strong,
+    .preset-option-copy small { display: block; }
+    .preset-option-copy strong {
+      color: var(--toolbar-text);
+      font-size: 0.72rem;
+      font-weight: 600;
+    }
+    .preset-option-copy small {
+      margin-top: 0.16rem;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.57rem;
+      font-weight: 400;
+      white-space: nowrap;
+      text-overflow: ellipsis;
+    }
+    .preset-option-check {
+      display: inline-block;
+      width: 0.9rem;
+      height: 0.9rem;
+      color: var(--frontend-stroke);
+      background: currentColor;
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='m3 8.5 3 3 7-7' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+      -webkit-mask-position: center;
+      -webkit-mask-repeat: no-repeat;
+      -webkit-mask-size: contain;
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='m3 8.5 3 3 7-7' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+      mask-position: center;
+      mask-repeat: no-repeat;
+      mask-size: contain;
+      opacity: 0;
+    }
+    .preset-option[aria-checked="true"] .preset-option-check { opacity: 1; }
+    html[data-preset="editorial"] .toolbar button,
+    html[data-preset="editorial"] .preset-menu,
+    html[data-preset="editorial"] .export-menu,
+    html[data-preset="editorial"] .overview-map,
+    html[data-preset="editorial"] .semantic-lens,
+    html[data-preset="editorial"] .route-probe,
+    html[data-preset="editorial"] .focus-chip,
+    html[data-preset="editorial"] .diagram-guide,
+    html[data-preset="editorial"] .node-finder,
+    html[data-preset="editorial"] .guided-views,
+    html[data-preset="editorial"] .share-chapter-cue {
+      border-radius: 0.3rem;
+    }
+    .motion-control-dot {
+      width: 0.46rem;
+      height: 0.46rem;
+      flex: 0 0 auto;
+      border: 1px solid var(--frontend-stroke);
+      border-radius: 50%;
+      background: var(--frontend-stroke);
+      box-shadow: 0 0 9px color-mix(in srgb, var(--frontend-stroke) 72%, transparent);
+    }
+    #btn-motion[aria-pressed="false"] .motion-control-dot {
+      background: transparent;
+      box-shadow: none;
+    }
+    .toolbar .export-menu {
+      position: absolute;
+      top: calc(100% + 0.375rem);
+      right: 0;
+      background: var(--toolbar-menu-bg);
+      border: 1px solid var(--toolbar-border);
+      width: 19rem;
+      max-width: calc(100vw - 2rem);
+      max-height: calc(100vh - 5.5rem);
+      overflow-y: auto;
+      border-radius: 0.875rem;
+      padding: 0.55rem;
+      display: none;
+      flex-direction: column;
+      box-shadow: 0 18px 48px rgba(0,0,0,0.24);
+    }
+    .toolbar .export-menu.open { display: flex; }
+    .export-menu-header {
+      display: flex;
+      align-items: flex-start;
+      justify-content: space-between;
+      gap: 1rem;
+      padding: 0.5rem 0.55rem 0.72rem;
+    }
+    .export-menu-header strong,
+    .export-menu-header span { display: block; }
+    .export-menu-header strong {
+      color: var(--toolbar-text);
+      font-size: 0.78rem;
+      font-weight: 650;
+      letter-spacing: -0.015em;
+    }
+    .export-menu-header span {
+      margin-top: 0.16rem;
+      color: var(--text-faint);
+      font-size: 0.56rem;
+    }
+    .export-menu-header kbd {
+      padding: 0.16rem 0.36rem;
+      border: 1px solid var(--toolbar-border);
+      border-radius: 0.3rem;
+      color: var(--text-faint);
+      background: color-mix(in srgb, var(--toolbar-border) 16%, transparent);
+      font-family: inherit;
+      font-size: 0.54rem;
+      font-weight: 600;
+    }
+    .export-menu-section {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr);
+      gap: 0.18rem;
+    }
+    .export-menu-section + .export-menu-section {
+      margin-top: 0.42rem;
+      padding-top: 0.42rem;
+      border-top: 1px solid color-mix(in srgb, var(--toolbar-border) 68%, transparent);
+    }
+    .export-menu-heading {
+      grid-column: 1 / -1;
+      display: block;
+      padding: 0.24rem 0.55rem 0.2rem;
+      color: var(--text-faint);
+      font-size: 0.54rem;
+      font-weight: 600;
+      letter-spacing: 0.12em;
+      text-transform: uppercase;
+    }
+    .toolbar .export-menu button {
+      display: grid;
+      grid-template-columns: 1.15rem minmax(0, 1fr);
+      align-items: center;
+      column-gap: 0.52rem;
+      background: transparent;
+      border: 1px solid transparent;
+      box-shadow: none;
+      backdrop-filter: none;
+      width: 100%;
+      min-height: 3rem;
+      text-align: left;
+      padding: 0.48rem 0.55rem;
+      border-radius: 0.5rem;
+      white-space: nowrap;
+    }
+    .export-item-copy {
+      display: block;
+      min-width: 0;
+    }
+    .export-item-copy strong,
+    .export-item-copy small { display: block; }
+    .export-item-copy strong {
+      overflow: hidden;
+      color: inherit;
+      font-size: 0.7rem;
+      font-weight: 550;
+      text-overflow: ellipsis;
+    }
+    .export-item-copy small {
+      margin-top: 0.12rem;
+      overflow: hidden;
+      color: var(--text-faint);
+      font-size: 0.55rem;
+      font-weight: 450;
+      text-overflow: ellipsis;
+    }
+    .toolbar .export-menu button::before {
+      width: 1rem;
+      height: 1rem;
+      background: currentColor;
+      content: "";
+      opacity: 0.72;
+      -webkit-mask-position: center;
+      -webkit-mask-repeat: no-repeat;
+      -webkit-mask-size: contain;
+      mask-position: center;
+      mask-repeat: no-repeat;
+      mask-size: contain;
+    }
+    .toolbar .export-menu button[data-format="share-card"]::before,
+    .toolbar .export-menu button[data-action="route-share-card"]::before,
+    .toolbar .export-menu button[data-action="reach-share-card"]::before {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='none' stroke='black' stroke-width='1.7' d='M3 4.5h14v11H3zM6 12l2.5-2.5 2 2 1.5-1.5 2 2'/%3E%3Ccircle cx='13.8' cy='7.3' r='1.2' fill='black'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='none' stroke='black' stroke-width='1.7' d='M3 4.5h14v11H3zM6 12l2.5-2.5 2 2 1.5-1.5 2 2'/%3E%3Ccircle cx='13.8' cy='7.3' r='1.2' fill='black'/%3E%3C/svg%3E");
+    }
+    .toolbar .export-menu button[data-action^="copy"]::before {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Crect x='6' y='6' width='10' height='10' rx='1.5' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M4 13H3.5A1.5 1.5 0 012 11.5v-8A1.5 1.5 0 013.5 2h8A1.5 1.5 0 0113 3.5V4' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Crect x='6' y='6' width='10' height='10' rx='1.5' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M4 13H3.5A1.5 1.5 0 012 11.5v-8A1.5 1.5 0 013.5 2h8A1.5 1.5 0 0113 3.5V4' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+    }
+    .toolbar .export-menu button[data-format="png"]::before,
+    .toolbar .export-menu button[data-format="jpeg"]::before,
+    .toolbar .export-menu button[data-format="webp"]::before {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 2.5h7l3 3v12H5zM12 2.5v3h3' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M7.5 14l2-2 1.5 1.5 1.5-1.5' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 2.5h7l3 3v12H5zM12 2.5v3h3' fill='none' stroke='black' stroke-width='1.7'/%3E%3Cpath d='M7.5 14l2-2 1.5 1.5 1.5-1.5' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+    }
+    .toolbar .export-menu button[data-format="svg"]::before,
+    .toolbar .export-menu button[data-format="webm"]::before {
+      -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 2.5l7 4v7l-7 4-7-4v-7zM3 6.5l7 4 7-4M10 10.5v7' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+      mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 2.5l7 4v7l-7 4-7-4v-7zM3 6.5l7 4 7-4M10 10.5v7' fill='none' stroke='black' stroke-width='1.7'/%3E%3C/svg%3E");
+    }
+    .toolbar .export-menu button[data-format="share-card"],
+    .toolbar .export-menu button[data-action="route-share-card"],
+    .toolbar .export-menu button[data-action="reach-share-card"] {
+      min-height: 3.35rem;
+      color: var(--toolbar-text);
+      background: color-mix(in srgb, var(--frontend-stroke) 8%, transparent);
+      border-color: color-mix(in srgb, var(--frontend-stroke) 24%, var(--toolbar-border));
+    }
+    .toolbar .export-menu button[hidden] { display: none; }
+    .toolbar .export-menu button:hover {
+      background: var(--toolbar-hover);
+    }
+    .toolbar .export-menu button:focus-visible {
+      background: var(--toolbar-hover);
+      outline-offset: -2px;
+    }
+    .toolbar .export-menu button:disabled {
+      color: var(--text-faint);
+      background: color-mix(in srgb, var(--toolbar-border) 18%, transparent);
+      cursor: not-allowed;
+    }
+    .toolbar .export-menu button:disabled:hover {
+      border-color: transparent;
+    }
+    .toolbar .export-menu .hint {
+      color: var(--text-faint);
+      font-size: 0.55rem;
+    }
+
+    /* Toast — brief feedback for actions like "copied" */
+    .archify-toast {
+      position: fixed;
+      top: 1rem;
+      left: 50%;
+      transform: translateX(-50%) translateY(-8px);
+      background: var(--toolbar-menu-bg);
+      color: var(--text);
+      border: 1px solid var(--toolbar-border);
+      padding: 0.5rem 1rem;
+      border-radius: 0.5rem;
+      font-family: inherit;
+      font-size: 0.75rem;
+      opacity: 0;
+      transition: opacity 0.2s, transform 0.2s;
+      z-index: 200;
+      pointer-events: none;
+      box-shadow: 0 4px 20px rgba(0,0,0,0.25);
+    }
+    .archify-toast.show {
+      opacity: 1;
+      transform: translateX(-50%) translateY(0);
+    }
+
+    @media (max-width: 720px) {
+      body { padding: 1rem; }
+      .toolbar .preset-menu,
+      .toolbar .export-menu {
+        position: fixed;
+        top: 4.5rem;
+        right: 1rem;
+        left: 1rem;
+        width: auto;
+        max-width: none;
+      }
+      .toolbar {
+        position: relative;
+        justify-content: flex-end;
+        width: max-content;
+        max-width: 100%;
+        margin-left: auto;
+        margin-bottom: 1rem;
+      }
+      .header { margin-bottom: 1.25rem; padding-right: 0; }
+      html[data-preset="signal-flow"] .header,
+      html[data-preset="blueprint"] .header,
+      html[data-preset="editorial"] .header { padding-right: 0; }
+      .header-row {
+        gap: 0.75rem;
+        align-items: flex-start;
+      }
+      html[data-preset="signal-flow"] .header-row,
+      html[data-preset="blueprint"] .header-row,
+      html[data-preset="editorial"] .header-row { flex-wrap: wrap; }
+      html[data-preset="signal-flow"] .header-row::after {
+        margin-left: 0;
+        order: 3;
+      }
+      html[data-preset="blueprint"] .header-row::after {
+        margin-left: 0;
+        order: 3;
+      }
+      html[data-preset="editorial"] .header-row::after {
+        margin-left: 0;
+        order: 3;
+      }
+      h1 {
+        font-size: 1.25rem;
+        line-height: 1.25;
+      }
+      .subtitle {
+        margin-left: 0;
+        font-size: 0.8125rem;
+        line-height: 1.55;
+      }
+      .diagram-container {
+        padding: 0.75rem;
+        border-radius: 0.75rem;
+      }
+      html:not([data-embed="true"]) .diagram-container {
+        padding: 0.75rem 0.75rem 4.25rem;
+      }
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] {
+        overflow-x: auto;
+        overflow-y: hidden;
+        overscroll-behavior-x: contain;
+        scrollbar-width: thin;
+        scroll-behavior: smooth;
+      }
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] > svg {
+        min-width: 720px;
+      }
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .diagram-nav,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .overview-map,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .focus-chip,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .route-probe,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .semantic-lens,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .diagram-guide,
+      html:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] .node-finder {
+        transform: translateX(var(--archify-scroll-x, 0px));
+      }
+      .diagram-nav { right: 0.5rem; bottom: 0.5rem; }
+      .diagram-nav button {
+        min-width: 2.75rem;
+        height: 2.75rem;
+      }
+      .diagram-nav [data-view="reset"] { min-width: 3.75rem; }
+      .diagram-nav [data-view="reset"][data-detail-visible] { min-width: 4.35rem; }
+      .overview-map {
+        right: 0.5rem;
+        bottom: 3.7rem;
+        width: min(10.25rem, calc(100% - 1rem));
+      }
+      .overview-map[data-docked="true"] {
+        right: var(--archify-radar-right, 0.5rem);
+        top: var(--archify-radar-top, 0.5rem);
+        bottom: auto;
+        transform: none !important;
+      }
+      .overview-map[data-docked="true"][data-dock-side="left"] {
+        right: auto;
+        left: var(--archify-radar-left, 0.5rem);
+      }
+      .overview-map-surface { height: 4rem; }
+      .overview-map-feedback { right: 0.5rem; bottom: 3.7rem; }
+      .semantic-lens {
+        right: 0.5rem;
+        bottom: 3.7rem;
+        width: calc(100% - 1rem);
+        max-height: calc(100% - 4.2rem);
+      }
+      .semantic-lens[data-dock-side] { left: auto; right: 0.5rem; }
+      .semantic-lens-kinds { max-height: min(12rem, 34vh); }
+      .focus-chip {
+        left: 0.5rem;
+        top: 0.5rem;
+        width: calc(100% - 1rem);
+        max-width: none;
+      }
+      .relationship-lens-list { max-height: min(12rem, 38vh); }
+      .relationship-lens-actions #btn-focus-relations { display: block; color: var(--database-stroke); }
+      .focus-chip:not([data-relations-expanded="true"]) .relationship-lens-head { border-bottom-color: transparent; }
+      .focus-chip:not([data-relations-expanded="true"]) .relationship-lens-list { display: none; }
+      /* While a mobile reader previews one relationship, turn the full Lens
+         into a compact peek card. This keeps the exact source and target on
+         canvas instead of covering them with a long, scrollable list. */
+      .focus-chip[data-relationship-previewing="true"] .relationship-lens-list {
+        max-height: none;
+        padding: 0.35rem;
+        overflow: hidden;
+      }
+      .focus-chip[data-relationship-previewing="true"] .relationship-lens-group { margin: 0; }
+      .focus-chip[data-relationship-previewing="true"] .relationship-lens-group-title,
+      .focus-chip[data-relationship-previewing="true"] .relationship-lens-row:not([data-preview-active="true"]) {
+        display: none;
+      }
+      .node-finder {
+        top: 0.5rem;
+        left: 0.5rem;
+        width: min(22rem, calc(100% - 1rem));
+        max-height: calc(100% - 1rem);
+      }
+      .diagram-guide {
+        top: 0.5rem;
+        right: 0.5rem;
+        left: 0.5rem;
+        width: auto;
+        max-height: calc(100% - 1rem);
+      }
+      .diagram-guide-head { padding: 0.62rem 0.7rem 0.52rem; }
+      .diagram-guide-stats { padding: 0.42rem 0.7rem; }
+      .diagram-guide-actions {
+        grid-template-columns: 1fr;
+        gap: 0.28rem;
+        padding: 0.42rem;
+      }
+      .diagram-guide-action {
+        min-height: 3.1rem;
+        padding: 0.42rem 0.48rem;
+      }
+      .diagram-guide-action small {
+        display: block;
+        overflow: hidden;
+        text-overflow: ellipsis;
+        white-space: nowrap;
+      }
+      .diagram-guide-index {
+        width: 1.5rem;
+        height: 1.5rem;
+      }
+      .diagram-guide-shortcuts { padding: 0.46rem 0.7rem 0.52rem; }
+      .diagram-guide-action[data-guide-action="present"] { grid-column: auto; }
+      .route-probe[data-guide-open="true"] {
+        visibility: hidden;
+        pointer-events: none;
+      }
+      .node-finder-results { max-height: min(16rem, 38vh); }
+      .route-probe {
+        left: 0.5rem;
+        bottom: 3.7rem;
+        width: calc(100% - 1rem);
+        min-width: 0;
+      }
+      .route-probe[data-route-dock="top"] {
+        top: 0.5rem;
+        bottom: auto;
+      }
+      .route-probe[data-finder-open="true"] {
+        visibility: hidden;
+        pointer-events: none;
+      }
+      .route-probe-head { padding: 0.45rem 0.48rem 0.38rem; }
+      .route-probe-path { padding: 0.35rem 0.48rem 0.2rem; }
+      .route-probe-node { min-height: 2.75rem !important; }
+      .route-journey-controls {
+        grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem minmax(0, 1fr);
+        padding: 0.08rem 0.48rem 0.32rem;
+      }
+      .route-journey-controls button { min-height: 2.75rem; }
+      .route-probe-status { padding: 0.05rem 0.48rem 0.38rem; }
+      .route-probe-node { max-width: 7.5rem; }
+      .guided-views {
+        grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem;
+        gap: 0.2rem;
+        padding: 0.25rem;
+      }
+      .guided-view-actions {
+        grid-column: 1 / -1;
+        display: grid;
+        grid-template-columns: repeat(3, minmax(0, 1fr));
+      }
+      .guided-views > #guided-view-prev,
+      .guided-views > #guided-view-next {
+        align-self: center;
+        height: 2.75rem;
+      }
+      .guided-view-play,
+      .guided-view-all,
+      .guided-view-beat-link { min-height: 2.75rem; }
+      .guided-view-copy small { white-space: normal; }
+      .guided-story-caption { padding: 0.32rem 0.45rem; }
+      .guided-story-caption-index { min-width: 2.9rem; padding-right: 0.42rem; }
+      .guided-story-caption strong,
+      .guided-story-caption small { white-space: normal; }
+      .guided-story-caption-next { display: none; }
+      .guided-view-trail { min-height: 2rem; }
+      .guided-view-trail .guided-view-stop {
+        min-height: 2rem;
+        padding: 0.22rem 0.42rem 0.22rem 0.28rem;
+      }
+      .guided-view-handoff { max-width: min(9rem, 32vw); }
+      .guided-view-index { padding-top: 0.35rem; }
+      .guided-view-chapters {
+        gap: 0.35rem;
+        scroll-padding-inline: 0.2rem;
+      }
+      .guided-view-chapters li {
+        flex: 0 0 min(14rem, 78vw);
+        min-width: 0;
+      }
+      .guided-view-chapter { min-height: 2.75rem; }
+      .guided-views[data-active-view="all"] {
+        grid-template-columns: minmax(0, 1fr) auto;
+        gap: 0.2rem;
+        padding: 0.25rem;
+      }
+      .guided-views[data-active-view="all"] .guided-view-copy {
+        grid-column: 1;
+        grid-row: 1;
+      }
+      .guided-views[data-active-view="all"] .guided-view-actions {
+        grid-column: 2;
+        grid-row: 1;
+      }
+      .guided-views[data-active-view="all"] .guided-view-play {
+        min-width: 6rem !important;
+        min-height: 2.75rem;
+      }
+      .guided-views[data-active-view="all"] .guided-view-index {
+        grid-column: 1 / -1;
+        grid-row: 2;
+        padding: 0.3rem 0.08rem 0;
+        border-top: 1px solid color-mix(in srgb, var(--toolbar-border) 72%, transparent);
+        border-left: 0;
+      }
+      html[data-embed="true"][data-share-playback="true"] .share-chapter-cue:not([hidden]),
+      html[data-embed="true"][data-share-moment="true"] .share-chapter-cue:not([hidden]) {
+        top: 0.5rem;
+        grid-template-columns: auto minmax(0, 1fr);
+        gap: 0.28rem 0.55rem;
+        width: calc(100% - 1rem);
+        min-height: 0;
+        padding: 0.45rem 0.55rem 0.55rem;
+      }
+      html[data-embed="true"][data-share-playback="true"] .diagram-container {
+        padding-top: 4.25rem;
+      }
+      html[data-embed="true"][data-share-moment="true"] .diagram-container {
+        padding-top: 4.25rem;
+      }
+      .share-chapter-index {
+        min-width: 4.4rem;
+        padding-right: 0.5rem;
+      }
+      .share-chapter-copy small { font-size: 0.46rem; }
+      .share-chapter-route {
+        grid-column: 1 / -1;
+        font-size: 0.5rem;
+        text-align: left;
+      }
+      .cards {
+        grid-template-columns: 1fr;
+        margin-top: 1rem;
+      }
+      html[data-present="true"]:not([data-embed="true"]) body { padding: 0.5rem; }
+      html[data-present="true"]:not([data-embed="true"]) .container {
+        gap: 0.5rem;
+        height: calc(100dvh - 1rem);
+      }
+      html[data-present="true"]:not([data-embed="true"]) .toolbar {
+        position: fixed;
+        top: 0.5rem;
+        right: 0.5rem;
+        margin: 0;
+        gap: 0.25rem;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .toolbar button {
+        min-height: 2.75rem;
+        padding: 0.42rem 0.58rem;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .header {
+        min-height: 2.25rem;
+        padding: 3.5rem 0 0;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .header-row {
+        min-height: 2.25rem;
+        margin: 0;
+        align-items: center;
+        flex-wrap: nowrap;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .header-row::after,
+      html[data-present="true"]:not([data-embed="true"]) .pulse-dot,
+      html[data-present="true"]:not([data-embed="true"]) .subtitle { display: none; }
+      html[data-present="true"]:not([data-embed="true"]) h1 {
+        flex: 1 1 auto;
+        min-width: 0;
+        max-width: 100%;
+        overflow: hidden;
+        font-size: 0.875rem;
+        text-overflow: ellipsis;
+        white-space: nowrap;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .guided-views {
+        padding: 0.2rem;
+      }
+      html[data-present="true"]:not([data-embed="true"]) .guided-view-copy small { display: none; }
+      html[data-present="true"]:not([data-embed="true"]) .guided-story-caption small { display: block; }
+      html[data-present="true"]:not([data-embed="true"]) .diagram-container { padding: 0.5rem 0.5rem 3.75rem; }
+      html[data-present="true"]:not([data-embed="true"]) .diagram-container[data-wide-diagram="true"] > svg {
+        width: 720px;
+        height: auto;
+        min-width: 720px;
+      }
+    }
+
+    @media (max-width: 420px) {
+      .export-menu-section { grid-template-columns: 1fr; }
+      .export-menu-heading,
+      .toolbar .export-menu button[data-format="share-card"],
+      .toolbar .export-menu button[data-action="route-share-card"],
+      .toolbar .export-menu button[data-action="reach-share-card"] { grid-column: 1; }
+    }
+
+    @media (prefers-reduced-motion: reduce) {
+      .guided-story-caption { animation: none !important; }
+      .toolbar .preset-menu.open,
+      .toolbar .export-menu.open { animation: none; }
+      .toolbar-chevron { transition: none; }
+    }
+
+    @media (max-width: 360px) {
+      .toolbar { gap: 0.25rem; }
+      .toolbar button { padding-right: 0.58rem; padding-left: 0.58rem; }
+      .toolbar #btn-motion { min-width: 4.4rem; padding-right: 0.58rem; padding-left: 0.58rem; }
+      #theme-label, #preset-label, #present-label { display: none; }
+      .guided-view-handoff { max-width: 6.5rem; }
+    }
+
+    /* ==========================================================
+       SVG SEMANTIC CLASSES — use these instead of inline fill/stroke
+       ========================================================== */
+    .c-grid       { stroke: var(--grid); fill: none; }
+    .c-mask       { fill: var(--mask); stroke: none; }
+
+    .c-frontend   { fill: var(--frontend-fill);   stroke: var(--frontend-stroke); }
+    .c-backend    { fill: var(--backend-fill);    stroke: var(--backend-stroke); }
+    .c-database   { fill: var(--database-fill);   stroke: var(--database-stroke); }
+    .c-cloud      { fill: var(--cloud-fill);      stroke: var(--cloud-stroke); }
+    .c-security   { fill: var(--security-fill);   stroke: var(--security-stroke); }
+    .c-messagebus { fill: var(--messagebus-fill); stroke: var(--messagebus-stroke); }
+    .c-external   { fill: var(--external-fill);   stroke: var(--external-stroke); }
+
+    /* Text helpers */
+    .t-primary { fill: var(--text); }
+    .t-muted   { fill: var(--text-muted); }
+    .t-dim     { fill: var(--text-dim); }
+    .t-frontend   { fill: var(--frontend-stroke); }
+    .t-backend    { fill: var(--backend-stroke); }
+    .t-database   { fill: var(--database-stroke); }
+    .t-cloud      { fill: var(--cloud-stroke); }
+    .t-security   { fill: var(--security-stroke); }
+    .t-messagebus { fill: var(--messagebus-stroke); }
+    .t-external   { fill: var(--external-stroke); }
+
+    /* Semantic Sigils are small authored role stamps, not icons from a brand
+       pack and not viewer controls. Prefix selectors with svg so the canonical
+       export's SVG-only stylesheet collector keeps them automatically. */
+    svg .semantic-sigil {
+      fill: none;
+      stroke: currentColor;
+      stroke-width: 1.35;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+      opacity: 0.76;
+      pointer-events: none;
+    }
+    svg .semantic-sigil > * { vector-effect: non-scaling-stroke; }
+    svg .semantic-sigil .sigil-fill { fill: currentColor; stroke: none; }
+    svg .s-frontend   { color: var(--frontend-stroke); }
+    svg .s-backend    { color: var(--backend-stroke); }
+    svg .s-database   { color: var(--database-stroke); }
+    svg .s-cloud      { color: var(--cloud-stroke); }
+    svg .s-security   { color: var(--security-stroke); }
+    svg .s-messagebus { color: var(--messagebus-stroke); }
+    svg .s-external   { color: var(--external-stroke); }
+
+    /* Brand Marks are authored identity badges. Their color is contained
+       inside one neutral plate so vendor color never replaces Archify's
+       semantic node and relationship vocabulary. */
+    svg .brand-mark { pointer-events: none; }
+    svg .brand-mark-badge { fill: #fff; stroke: none; }
+    svg .brand-mark-frame {
+      fill: none;
+      stroke: #cbd5e1;
+      stroke-width: 0.8;
+      vector-effect: non-scaling-stroke;
+    }
+    svg .brand-mark-fallback {
+      fill: none;
+      stroke: #475569;
+      stroke-width: 1.15;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+    }
+    svg[data-preset="blueprint"] .brand-mark-badge,
+    svg[data-preset="blueprint"] .brand-mark-frame { rx: 1px; }
+
+    /* Reading Depth is a viewer-only level-of-detail layer. MAP preserves the
+       authored structure and primary labels, READ restores relationship labels
+       and node context, and FULL restores tags and fine annotations. Semantic
+       intent can reveal the relevant detail without moving any geometry. */
+    svg [data-detail] { transition: opacity 160ms ease; }
+    svg [data-detail-anchor] {
+      transform-box: fill-box;
+      transform-origin: center;
+      transition: transform 160ms ease;
+    }
+    .diagram-container[data-detail-level="map"] svg [data-detail="context"],
+    .diagram-container[data-detail-level="map"] svg [data-detail="fine"],
+    .diagram-container[data-detail-level="read"] svg [data-detail="fine"] {
+      opacity: 0;
+      pointer-events: none;
+    }
+    .diagram-container[data-detail-level="map"] svg [data-detail-anchor] {
+      transform: translateY(8px);
+    }
+
+    /* Focus, lens, preview, route, and story states are stronger reader intent than
+       the global zoom level. Reveal only their exact semantic matches. */
+    svg[data-focus-active] [data-focus-match][data-detail],
+    svg[data-focus-active] [data-focus-match] [data-detail],
+    svg[data-reach-active] [data-reach-match][data-detail],
+    svg[data-reach-active] [data-reach-match] [data-detail],
+    svg[data-lens-active] [data-lens-match][data-detail],
+    svg[data-lens-active] [data-lens-match] [data-detail],
+    svg[data-legend-preview-active] [data-legend-preview-match][data-detail],
+    svg[data-legend-preview-active] [data-legend-preview-match] [data-detail],
+    svg[data-intent-trace-active] [data-intent-trace-match][data-detail],
+    svg[data-intent-trace-active] [data-intent-trace-match] [data-detail],
+    svg[data-route-active] [data-route-match][data-detail],
+    svg[data-route-active] [data-route-match] [data-detail],
+    svg[data-story-active] [data-story-step][data-detail],
+    svg[data-story-active] [data-story-step] [data-detail],
+    svg[data-relationship-preview-active] [data-relationship-preview][data-detail],
+    svg[data-relationship-preview-active] [data-relationship-preview] [data-detail],
+    svg [data-node-id]:hover [data-detail],
+    svg [data-node-id]:focus-visible [data-detail] {
+      opacity: 1;
+      pointer-events: auto;
+    }
+    svg[data-focus-active] [data-focus-match] [data-detail-anchor],
+    svg[data-reach-active] [data-reach-match] [data-detail-anchor],
+    svg[data-lens-active] [data-lens-match] [data-detail-anchor],
+    svg[data-legend-preview-active] [data-legend-preview-match] [data-detail-anchor],
+    svg[data-intent-trace-active] [data-intent-trace-match] [data-detail-anchor],
+    svg[data-route-active] [data-route-match] [data-detail-anchor],
+    svg[data-story-active] [data-story-step] [data-detail-anchor],
+    svg [data-node-id]:hover [data-detail-anchor],
+    svg [data-node-id]:focus-visible [data-detail-anchor] { transform: none; }
+
+    /* Arrows */
+    .a-default   { stroke: var(--arrow); fill: none; }
+    .a-emphasis  { stroke: var(--arrow-emphasis); fill: none; }
+    .a-security  { stroke: var(--security-stroke); fill: none; stroke-dasharray: 5,5; }
+    .a-dashed    { stroke: var(--database-stroke); fill: none; stroke-dasharray: 4,4; }
+
+    /* Arrowhead markers reference these */
+    .m-default   { fill: var(--arrow); }
+    .m-emphasis  { fill: var(--arrow-emphasis); }
+    .m-security  { fill: var(--security-stroke); }
+    .m-dashed    { fill: var(--database-stroke); }
+
+    /* Stable semantic exploration hooks emitted by every renderer. */
+    svg [data-node-id] {
+      cursor: pointer;
+      transition: opacity 0.18s ease, filter 0.18s ease;
+    }
+    svg [data-edge-from] { transition: opacity 0.18s ease, filter 0.18s ease; }
+    svg [data-node-id]:hover,
+    svg [data-node-id]:focus-visible {
+      filter: drop-shadow(0 0 7px var(--frontend-stroke));
+      outline: none;
+    }
+    /* Verified Source Beacons are installed at runtime only for nodes whose
+       repository evidence passed the local revision/blob/line checks. They
+       live inside the owning node so every focus, route, story, and guided
+       view keeps one coherent opacity state. Export serialization removes
+       them before producing the canonical SVG or any derived visual. */
+    .source-evidence-beacon {
+      pointer-events: none;
+      opacity: 0.76;
+      transition: opacity 160ms ease, filter 160ms ease;
+    }
+    .source-evidence-beacon rect {
+      fill: color-mix(in srgb, var(--mask) 92%, var(--backend-stroke));
+      stroke: color-mix(in srgb, var(--backend-stroke) 82%, var(--panel-border));
+      stroke-width: 1;
+      vector-effect: non-scaling-stroke;
+    }
+    .source-evidence-beacon text {
+      fill: var(--backend-stroke);
+      font-size: 5.5px;
+      font-weight: 800;
+      letter-spacing: 0.06em;
+      text-anchor: middle;
+      text-transform: uppercase;
+    }
+    svg [data-node-id]:hover .source-evidence-beacon,
+    svg [data-node-id]:focus-visible .source-evidence-beacon,
+    svg [data-node-id][data-focus-selected] .source-evidence-beacon {
+      opacity: 1;
+      filter: drop-shadow(0 0 4px color-mix(in srgb, var(--backend-stroke) 72%, transparent));
+    }
+    svg[data-preset="signal-flow"] .source-evidence-beacon { opacity: 0.9; }
+    svg[data-preset="blueprint"] .source-evidence-beacon rect {
+      rx: 0.8px;
+      filter: none;
+    }
+    svg [data-legend-kind][role="button"] { cursor: pointer; }
+    svg [data-legend-kind]:focus { outline: none; }
+    svg [data-legend-hit] {
+      fill: transparent;
+      stroke: transparent;
+      stroke-width: 1.4;
+      pointer-events: all;
+      vector-effect: non-scaling-stroke;
+      transition: stroke 150ms ease, stroke-width 150ms ease, filter 150ms ease;
+    }
+    svg [data-legend-count-badge] { pointer-events: none; }
+    svg [data-legend-count-badge] rect {
+      fill: var(--mask);
+      stroke: var(--panel-border);
+      stroke-width: 1;
+      vector-effect: non-scaling-stroke;
+    }
+    svg [data-legend-count-badge] text {
+      fill: var(--text-muted);
+      font-size: 8px;
+      font-weight: 700;
+      text-anchor: middle;
+    }
+    svg [data-legend-kind][role="button"]:hover [data-legend-hit] {
+      stroke: color-mix(in srgb, var(--database-stroke) 58%, transparent);
+    }
+    svg [data-legend-kind][role="button"]:focus-visible [data-legend-hit] {
+      stroke: var(--frontend-stroke);
+      stroke-width: 1.8;
+      filter: drop-shadow(0 0 3px var(--frontend-stroke));
+    }
+    svg [data-legend-kind][data-legend-selected] [data-legend-hit] {
+      stroke: var(--database-stroke);
+      stroke-width: 2.2;
+      stroke-dasharray: 3 2;
+    }
+    svg [data-legend-kind][data-legend-selected] [data-legend-count-badge] rect {
+      stroke: var(--database-stroke);
+      stroke-width: 1.8;
+    }
+    svg [data-legend-kind][data-legend-zero] { opacity: 0.44; }
+    svg[data-preset="signal-flow"] [data-legend-kind][data-legend-selected] [data-legend-hit] {
+      filter: drop-shadow(0 0 4px var(--database-stroke));
+    }
+    svg[data-preset="blueprint"] [data-legend-hit],
+    svg[data-preset="blueprint"] [data-legend-count-badge] rect { rx: 0; filter: none; }
+    svg[data-legend-preview-active] [data-node-id],
+    svg[data-legend-preview-active] [data-edge-from] { opacity: 0.11; }
+    svg[data-legend-preview-active] [data-legend-preview-match] { opacity: 1; }
+    svg[data-legend-preview-active] [data-legend-preview-peer] { opacity: 0.62; }
+    svg[data-legend-preview-active] [data-legend-preview-selected] {
+      filter: drop-shadow(0 0 8px var(--database-stroke));
+    }
+    svg[data-lens-active] [data-node-id],
+    svg[data-lens-active] [data-edge-from] { opacity: 0.11; }
+    svg[data-lens-active] [data-lens-match] { opacity: 1; }
+    svg[data-lens-active] [data-lens-peer] { opacity: 0.62; }
+    svg[data-lens-active] [data-lens-selected] {
+      filter: drop-shadow(0 0 10px var(--database-stroke));
+    }
+    .semantic-lens-overlay { pointer-events: none; }
+    .semantic-lens-flow {
+      fill: none;
+      stroke-width: 3.05;
+      stroke-linecap: round;
+      stroke-dasharray: 0.075 0.925;
+      stroke-dashoffset: 0;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.9;
+      animation: archify-semantic-lens-flow 1.35s linear 1 both;
+      animation-delay: var(--lens-flow-delay, 0s);
+    }
+    .semantic-lens-flow[data-direction="out"],
+    .semantic-lens-flow[data-direction="forward"] {
+      stroke: var(--frontend-stroke);
+      filter: drop-shadow(0 0 3px var(--frontend-stroke));
+    }
+    .semantic-lens-flow[data-direction="in"],
+    .semantic-lens-flow[data-direction="reverse"] {
+      stroke: var(--database-stroke);
+      filter: drop-shadow(0 0 3px var(--database-stroke));
+    }
+    .semantic-lens-flow[data-direction="within"] {
+      stroke: var(--messagebus-stroke);
+      filter: drop-shadow(0 0 3px var(--messagebus-stroke));
+    }
+    svg[data-preset="signal-flow"] .semantic-lens-flow {
+      stroke-width: 3.7;
+      opacity: 1;
+    }
+    svg[data-preset="signal-flow"] .semantic-lens-flow[data-direction="out"],
+    svg[data-preset="signal-flow"] .semantic-lens-flow[data-direction="forward"] {
+      filter: drop-shadow(0 0 6px var(--frontend-stroke));
+    }
+    svg[data-preset="signal-flow"] .semantic-lens-flow[data-direction="in"],
+    svg[data-preset="signal-flow"] .semantic-lens-flow[data-direction="reverse"] {
+      filter: drop-shadow(0 0 6px var(--database-stroke));
+    }
+    svg[data-preset="signal-flow"] .semantic-lens-flow[data-direction="within"] {
+      filter: drop-shadow(0 0 6px var(--messagebus-stroke));
+    }
+    svg[data-preset="blueprint"] .semantic-lens-flow {
+      stroke-width: 2.45;
+      stroke-linecap: square;
+      filter: none;
+      opacity: 0.78;
+    }
+    html[data-embed="true"] .semantic-lens-overlay { display: none; }
+    svg[data-focus-active] [data-node-id],
+    svg[data-focus-active] [data-edge-from] { opacity: 0.13; }
+    svg[data-focus-active] [data-focus-match] { opacity: 1; }
+    svg[data-focus-active] [data-focus-selected] {
+      filter: drop-shadow(0 0 10px var(--frontend-stroke));
+    }
+
+    /* Authored Reachability is a bounded graph query over the relationships
+       already present in the artifact. Upstream walks incoming edges;
+       downstream walks outgoing edges. It never claims runtime causality and
+       changes only viewer emphasis, not canonical geometry or export bytes. */
+    svg[data-reach-active] [data-node-id],
+    svg[data-reach-active] [data-edge-from] { opacity: 0.09; }
+    svg[data-reach-active] [data-reach-match] { opacity: 1; }
+    svg[data-reach-active="upstream"] [data-reach-origin] {
+      filter: drop-shadow(0 0 11px var(--database-stroke));
+    }
+    svg[data-reach-active="downstream"] [data-reach-origin] {
+      filter: drop-shadow(0 0 11px var(--backend-stroke));
+    }
+    svg[data-reach-active="upstream"] [data-edge-from][data-reach-match] {
+      filter: drop-shadow(0 0 4px color-mix(in srgb, var(--database-stroke) 72%, transparent));
+    }
+    svg[data-reach-active="downstream"] [data-edge-from][data-reach-match] {
+      filter: drop-shadow(0 0 4px color-mix(in srgb, var(--backend-stroke) 72%, transparent));
+    }
+    svg[data-preset="blueprint"][data-reach-active] [data-reach-origin],
+    svg[data-preset="blueprint"][data-reach-active] [data-edge-from][data-reach-match] {
+      filter: none;
+    }
+
+    /* Direct Relationship Explorer makes authored paths a real input surface
+       without changing their visible stroke or canonical SVG. A transparent
+       runtime rail supplies forgiving pointer geometry; the exact authored
+       path and endpoints continue to carry every visible state. */
+    .relationship-hit-overlay { pointer-events: none; }
+    .relationship-hit-target { outline: none; }
+    .relationship-hit-rail {
+      fill: none;
+      stroke: transparent;
+      stroke-width: 24;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+      vector-effect: non-scaling-stroke;
+      pointer-events: stroke;
+      cursor: pointer;
+    }
+    .relationship-focus-rail {
+      fill: none;
+      stroke: color-mix(in srgb, var(--frontend-stroke) 34%, transparent);
+      stroke-width: 6;
+      stroke-dasharray: 2 4;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+      vector-effect: non-scaling-stroke;
+      pointer-events: none;
+      opacity: 0;
+    }
+    .relationship-hit-target:focus-visible .relationship-focus-rail {
+      opacity: 1;
+    }
+    svg[data-preset="blueprint"] .relationship-hit-target:focus-visible .relationship-focus-rail {
+      stroke-linecap: square;
+      filter: none;
+    }
+    svg[data-relationship-direct-active] [data-node-id],
+    svg[data-relationship-direct-active] [data-edge-from] { opacity: 0.16; }
+    svg[data-relationship-direct-active] [data-relationship-preview],
+    svg[data-relationship-direct-active] [data-relationship-preview-node] { opacity: 1; }
+    svg[data-focus-active]:not([data-relationship-pin-active]) .relationship-hit-rail,
+    svg[data-story-active] .relationship-hit-rail,
+    svg[data-route-picking] .relationship-hit-rail,
+    svg[data-route-active] .relationship-hit-rail,
+    svg[data-lens-active] .relationship-hit-rail,
+    svg[data-chapter-preview] .relationship-hit-rail { pointer-events: none; }
+    html[data-embed="true"] .relationship-hit-overlay { display: none; }
+    @media (hover: none), (pointer: coarse) {
+      .relationship-hit-rail { stroke-width: 24; }
+    }
+
+    /* Relationship Preview is temporary exploration state layered on top of
+       neighborhood focus. It changes emphasis only; exported geometry and the
+       relationship's original solid/dashed visual language stay untouched. */
+    svg[data-relationship-preview-active] [data-focus-match] { opacity: 0.18; }
+    svg[data-relationship-preview-active] [data-relationship-preview],
+    svg[data-relationship-preview-active] [data-relationship-preview-node] { opacity: 1; }
+    svg[data-relationship-preview-active] [data-relationship-preview] {
+      filter: drop-shadow(0 0 5px var(--arrow-emphasis));
+    }
+    svg[data-relationship-preview-active] [data-relationship-preview] path,
+    svg[data-relationship-preview-active] path[data-relationship-preview],
+    svg[data-relationship-preview-active] [data-relationship-preview] line,
+    svg[data-relationship-preview-active] line[data-relationship-preview],
+    svg[data-relationship-preview-active] [data-relationship-preview] polyline,
+    svg[data-relationship-preview-active] polyline[data-relationship-preview] {
+      stroke-width: 2.75;
+    }
+    svg[data-relationship-preview-active] [data-relationship-preview-source] {
+      filter: drop-shadow(0 0 7px var(--frontend-stroke));
+    }
+    svg[data-relationship-preview-active] [data-relationship-preview-target] {
+      filter: drop-shadow(0 0 7px var(--database-stroke));
+    }
+    .relationship-pulse-overlay { pointer-events: none; }
+    .relationship-flow-pulse {
+      fill: none;
+      stroke: var(--arrow-emphasis);
+      stroke-width: 3.35;
+      stroke-linecap: round;
+      stroke-dasharray: 0.085 0.915;
+      stroke-dashoffset: 0;
+      vector-effect: non-scaling-stroke;
+      opacity: 0;
+      filter: drop-shadow(0 0 4px var(--arrow-emphasis));
+      animation: archify-relationship-pulse 1.2s linear 1 both;
+    }
+    svg[data-preset="signal-flow"] .relationship-flow-pulse {
+      stroke: var(--frontend-stroke);
+      stroke-width: 3.85;
+      filter: drop-shadow(0 0 7px var(--frontend-stroke));
+    }
+    svg[data-preset="blueprint"] .relationship-flow-pulse {
+      stroke-width: 2.5;
+      stroke-linecap: square;
+      filter: none;
+    }
+    svg[data-preset="editorial"] .relationship-flow-pulse {
+      stroke: var(--arrow-emphasis);
+      stroke-width: 2.75;
+      filter: none;
+    }
+    .semantic-flow-token {
+      color: var(--frontend-stroke);
+      opacity: 0;
+      pointer-events: none;
+    }
+    .relationship-flow-token {
+      animation: archify-relationship-token-life 1.2s linear 1 both;
+    }
+    .story-flow-token {
+      animation: archify-relationship-token-life 0.78s linear 1 both;
+    }
+    .semantic-flow-token-halo {
+      fill: var(--mask);
+      stroke: currentColor;
+      stroke-width: 1.1;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.96;
+    }
+    .relationship-flow-token-shape {
+      fill: var(--mask);
+      stroke: currentColor;
+      stroke-width: 1.35;
+      stroke-linecap: round;
+      stroke-linejoin: round;
+      vector-effect: non-scaling-stroke;
+    }
+    .relationship-flow-token-ink {
+      fill: none;
+      stroke: currentColor;
+      stroke-width: 1.05;
+      stroke-linecap: round;
+      vector-effect: non-scaling-stroke;
+    }
+    .relationship-flow-token-dot { fill: currentColor; stroke: none; }
+    .semantic-flow-token[data-token-kind="data"] { color: var(--database-stroke); }
+    .semantic-flow-token[data-token-kind="event"] { color: var(--messagebus-stroke); }
+    .semantic-flow-token[data-token-kind="security"] { color: var(--security-stroke); }
+    .semantic-flow-token[data-token-kind="state"] { color: var(--cloud-stroke); }
+    svg[data-preset="signal-flow"] .semantic-flow-token {
+      filter: drop-shadow(0 0 5px currentColor);
+    }
+    svg[data-preset="blueprint"] .semantic-flow-token { filter: none; }
+    svg[data-preset="editorial"] .semantic-flow-token { filter: none; }
+    html[data-embed="true"] .relationship-pulse-overlay { display: none; }
+
+    /* Intent Trace is a temporary, pre-click exploration layer. Related
+       topology stays readable while a short viewer-only signal runs over
+       cloned edge geometry; the authored edge remains untouched underneath. */
+    svg[data-intent-trace-active] [data-node-id],
+    svg[data-intent-trace-active] [data-edge-from] { opacity: 0.2; }
+    svg[data-intent-trace-active] [data-intent-trace-match] { opacity: 1; }
+    svg[data-intent-trace-active] [data-intent-trace-selected] {
+      filter: drop-shadow(0 0 10px var(--frontend-stroke));
+    }
+    .intent-trace-overlay { pointer-events: none; }
+    .intent-trace-flow {
+      fill: none;
+      stroke-width: 3.1;
+      stroke-linecap: round;
+      stroke-dasharray: 0.1 0.9;
+      stroke-dashoffset: 0;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.94;
+      animation: archify-intent-trace-flow 1.15s linear 1 both;
+    }
+    /* Direction names describe each edge relative to the focused node only.
+       The cloned geometry already runs from the authored source to target, so
+       incoming and outgoing signals must share the same playback direction. */
+    .intent-trace-flow[data-direction="out"] {
+      stroke: var(--frontend-stroke);
+      filter: drop-shadow(0 0 4px var(--frontend-stroke));
+    }
+    .intent-trace-flow[data-direction="in"] {
+      stroke: var(--database-stroke);
+      filter: drop-shadow(0 0 4px var(--database-stroke));
+      animation-direction: normal;
+    }
+    .intent-trace-flow[data-direction="loop"] {
+      stroke: var(--security-stroke);
+      filter: drop-shadow(0 0 4px var(--security-stroke));
+    }
+    svg[data-preset="blueprint"] [data-intent-trace-selected],
+    svg[data-preset="blueprint"] .intent-trace-flow {
+      filter: none;
+      stroke-linecap: square;
+    }
+    svg[data-preset="editorial"] [data-intent-trace-selected],
+    svg[data-preset="editorial"] .intent-trace-flow { filter: none; }
+    .intent-trace-status {
+      position: absolute;
+      width: 1px;
+      height: 1px;
+      padding: 0;
+      margin: -1px;
+      overflow: hidden;
+      clip: rect(0, 0, 0, 0);
+      clip-path: inset(50%);
+      white-space: nowrap;
+      border: 0;
+    }
+
+    /* Route Probe separates a durable two-point query from selection and
+       one-hop hover. Only the chosen shortest directed path stays prominent;
+       the traveling signal is cloned viewer geometry and never authored SVG. */
+    svg[data-route-picking="target"] [data-node-id] { opacity: 0.24; }
+    svg[data-route-picking="target"] [data-route-candidate],
+    svg[data-route-picking="target"] [data-route-start] { opacity: 1; }
+    svg[data-route-picking] [data-node-id] { cursor: crosshair; }
+    svg[data-route-picking] [data-route-start] {
+      filter: drop-shadow(0 0 10px var(--frontend-stroke));
+    }
+    svg[data-route-active] [data-node-id],
+    svg[data-route-active] [data-edge-from] { opacity: 0.11; }
+    svg[data-route-active] [data-route-match] { opacity: 1; }
+    svg[data-route-active] [data-route-start] {
+      filter: drop-shadow(0 0 11px var(--frontend-stroke));
+    }
+    svg[data-route-active] [data-route-end] {
+      filter: drop-shadow(0 0 11px var(--security-stroke));
+    }
+    svg[data-route-active] [data-route-step]:not([data-route-start]):not([data-route-end]) {
+      filter: drop-shadow(0 0 7px var(--backend-stroke));
+    }
+    svg[data-route-journey] [data-route-match][data-route-journey-state="past"] { opacity: 0.62; }
+    svg[data-route-journey] [data-route-match][data-route-journey-state="future"] { opacity: 0.34; }
+    svg[data-route-journey] [data-route-match][data-route-journey-state="current"] { opacity: 1; }
+    svg[data-route-journey] [data-node-id][data-route-journey-current] {
+      filter: drop-shadow(0 0 10px var(--backend-stroke));
+    }
+    svg[data-route-journey] [data-edge-from][data-route-journey-current] {
+      opacity: 1;
+      filter: drop-shadow(0 0 6px var(--backend-stroke));
+    }
+    .route-probe-overlay { pointer-events: none; }
+    .route-journey-overlay { pointer-events: none; }
+    .route-probe-flow {
+      fill: none;
+      stroke: var(--backend-stroke);
+      stroke-width: 3.25;
+      stroke-linecap: round;
+      stroke-dasharray: 0.085 0.915;
+      stroke-dashoffset: 0;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.96;
+      filter: drop-shadow(0 0 5px var(--backend-stroke));
+      animation: archify-route-probe-flow 1.1s cubic-bezier(0.22, 1, 0.36, 1) 1 both;
+      animation-delay: calc(var(--route-step, 0) * 0.16s);
+    }
+    .route-journey-flow {
+      fill: none;
+      stroke: var(--backend-stroke);
+      stroke-width: 3.5;
+      stroke-linecap: round;
+      stroke-dasharray: 0.1 0.9;
+      stroke-dashoffset: 0;
+      vector-effect: non-scaling-stroke;
+      opacity: 0;
+      filter: drop-shadow(0 0 6px var(--backend-stroke));
+      animation: archify-route-journey-flow 780ms cubic-bezier(0.22, 1, 0.36, 1) 1 both;
+    }
+    svg[data-preset="blueprint"] [data-route-start],
+    svg[data-preset="blueprint"] [data-route-end],
+    svg[data-preset="blueprint"] [data-route-step],
+    svg[data-preset="blueprint"] .route-probe-flow {
+      filter: none;
+      stroke-linecap: square;
+    }
+    svg[data-preset="blueprint"] .route-journey-flow {
+      filter: none;
+      stroke-linecap: square;
+    }
+    svg[data-preset="editorial"] [data-route-start],
+    svg[data-preset="editorial"] [data-route-end],
+    svg[data-preset="editorial"] [data-route-step],
+    svg[data-preset="editorial"] .route-probe-flow,
+    svg[data-preset="editorial"] .route-journey-flow { filter: none; }
+
+    svg[data-preset="editorial"] .c-grid {
+      stroke-dasharray: 1 4;
+      opacity: 0.48;
+    }
+    svg[data-preset="editorial"] .c-region {
+      fill: color-mix(in srgb, var(--cloud-fill) 48%, transparent);
+      stroke-dasharray: 9 4;
+    }
+    svg[data-preset="editorial"] [data-node-id]:hover,
+    svg[data-preset="editorial"] [data-node-id]:focus-visible,
+    svg[data-preset="editorial"][data-focus-active] [data-focus-selected] {
+      filter: drop-shadow(0 2px 2px color-mix(in srgb, var(--text) 18%, transparent));
+    }
+
+    svg[data-preset="blueprint"] .c-grid {
+      stroke-dasharray: 1 3;
+      opacity: 0.78;
+    }
+    svg[data-preset="blueprint"] .c-region {
+      fill: color-mix(in srgb, var(--cloud-fill) 58%, transparent);
+      stroke-dasharray: 12 4 2 4;
+    }
+    svg[data-preset="blueprint"] .c-security-group,
+    svg[data-preset="blueprint"] .c-lane { stroke-dasharray: 7 3; }
+    svg[data-preset="blueprint"] [data-node-id]:hover,
+    svg[data-preset="blueprint"] [data-node-id]:focus-visible {
+      filter: drop-shadow(0 0 3px var(--frontend-stroke));
+    }
+    svg[data-preset="blueprint"][data-focus-active] [data-focus-selected] {
+      filter: drop-shadow(0 0 3px var(--frontend-stroke));
+    }
+    svg[data-preset="blueprint"][data-focus-active][data-reach-active] [data-focus-selected][data-reach-origin] {
+      filter: none;
+    }
+    svg[data-preset="blueprint"][data-relationship-preview-active] [data-relationship-preview],
+    svg[data-preset="blueprint"][data-relationship-preview-active] [data-relationship-preview-source],
+    svg[data-preset="blueprint"][data-relationship-preview-active] [data-relationship-preview-target] {
+      filter: drop-shadow(0 0 3px var(--frontend-stroke));
+    }
+
+    /* Story Trail is a viewer-only overlay derived from the ordered focus IDs
+       of the active guided view. The authored edge stays underneath with its
+       original color, dash pattern, marker, and geometry intact. */
+    .story-trail-overlay { pointer-events: none; }
+    .story-carrier-overlay { pointer-events: none; }
+    .story-trail-flow {
+      fill: none;
+      stroke: var(--frontend-stroke);
+      stroke-width: 2.8;
+      stroke-linecap: round;
+      vector-effect: non-scaling-stroke;
+      opacity: 0.34;
+      filter: drop-shadow(0 0 2px var(--frontend-stroke));
+    }
+    svg[data-story-beat] [data-story-step] {
+      opacity: 0.22;
+      filter: saturate(0.42);
+      transition: opacity 180ms ease, filter 180ms ease;
+    }
+    svg[data-story-beat] [data-story-step][data-story-beat-state="past"] {
+      opacity: 0.72;
+      filter: saturate(0.82);
+    }
+    svg[data-story-beat] [data-story-step][data-story-beat-state="next"] {
+      opacity: 0.5;
+      filter: saturate(0.66);
+    }
+    svg[data-story-beat] [data-story-step][data-story-beat-state="active"] {
+      opacity: 1;
+      filter: drop-shadow(0 0 7px var(--frontend-stroke));
+      animation: archify-story-beat-node 360ms cubic-bezier(0.22, 1, 0.36, 1) both;
+    }
+    svg[data-story-beat] [data-edge-from][data-story-beat-step] {
+      opacity: 0.16;
+      transition: opacity 160ms ease;
+    }
+    svg[data-story-beat] [data-edge-from][data-story-beat-step][data-story-beat-state="past"] { opacity: 0.58; }
+    svg[data-story-beat] [data-edge-from][data-story-beat-step][data-story-beat-state="next"] { opacity: 0.34; }
+    svg[data-story-beat] [data-edge-from][data-story-beat-step][data-story-beat-state="active"] { opacity: 1; }
+    svg[data-story-beat] .story-trail-flow { opacity: 0; transition: opacity 160ms ease; }
+    svg[data-story-beat] .story-trail-flow[data-story-beat-state="past"] { opacity: 0.34; }
+    svg[data-story-beat] .story-trail-flow[data-story-beat-state="next"] { opacity: 0.2; }
+    svg[data-story-beat] .story-trail-flow[data-story-beat-state="active"] { opacity: 0.92; }
+    svg[data-story-beat] .story-trail-flow[data-story-pulse="true"] {
+      stroke-dasharray: 2 13;
+      stroke-dashoffset: 30;
+      opacity: 0.92;
+      animation: archify-story-flow 0.78s linear 1 both;
+    }
+    svg[data-preset="blueprint"] .story-trail-flow {
+      stroke-linecap: square;
+      filter: none;
+      opacity: 0.5;
+    }
+    svg[data-preset="blueprint"][data-story-beat] [data-story-step][data-story-beat-state="active"] {
+      filter: none;
+      animation: none;
+    }
+    svg[data-preset="editorial"] .story-trail-flow { filter: none; }
+    svg[data-preset="editorial"][data-story-beat] [data-story-step][data-story-beat-state="active"] {
+      filter: drop-shadow(0 2px 2px color-mix(in srgb, var(--text) 16%, transparent));
+    }
+
+    /* Chapter Delta Preview is a static, pre-commit comparison between two
+       chapter focus sets. Symbols in the rail carry the meaning without color;
+       these SVG rules only make exact stable-ID membership easier to scan. */
+    svg[data-chapter-preview] [data-node-id],
+    svg[data-chapter-preview] [data-edge-from] {
+      opacity: 0.1 !important;
+      filter: none !important;
+      transition: none !important;
+    }
+    svg[data-chapter-preview] .story-trail-overlay { opacity: 0.08 !important; }
+    svg[data-chapter-preview] [data-node-id][data-chapter-preview-role="stay"] {
+      opacity: 0.76 !important;
+      filter: saturate(0.7) !important;
+    }
+    svg[data-chapter-preview] [data-node-id][data-chapter-preview-role="enter"] {
+      opacity: 1 !important;
+      filter: saturate(1.2) !important;
+    }
+    svg[data-chapter-preview] [data-node-id][data-chapter-preview-role="leave"] {
+      opacity: 0.28 !important;
+      filter: grayscale(0.72) !important;
+    }
+    svg[data-preset="blueprint"][data-chapter-preview] [data-node-id] { filter: none !important; }
+
+    /* Dashed boundary variants */
+    .c-security-group { fill: transparent; stroke: var(--security-stroke); stroke-dasharray: 4,4; }
+    .c-region         { fill: rgba(251, 191, 36, 0.05); stroke: var(--cloud-stroke); stroke-dasharray: 8,4; }
+    .c-lane           { fill: var(--lane-fill); stroke: var(--lane-stroke); stroke-dasharray: 6,6; }
+
+    /* Optional trace animation, enabled only by meta.animation = "trace".
+       The ordinary viewer performs one ambient pass and then restores the
+       authored solid/security/async line language. WebM samples the same
+       authored geometry into an explicit canvas timeline. */
+    html[data-ambient-motion="running"] svg[data-animation="trace"] [data-animate="edge"] {
+      animation: archify-edge-flow 2.4s linear 1;
+      animation-delay: calc(var(--step, 0) * 160ms);
+    }
+    html[data-ambient-motion="running"] svg[data-animation="trace"] [data-animate="node"] {
+      transform-box: fill-box;
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{noun}","viewer.passport.eyebrow":"语义护照","viewer.passport.metadata":"节点元数据","viewer.passport.evidence":"已验证的源代码证据","viewer.passport.verified":"已验证来源","viewer.passport.reach":"编写可达范围","viewer.passport.reach.trace":"追踪编写的可达性","viewer.passport.upstream":"上游","viewer.passport.downstream":"下游","viewer.passport.upstream.trace":"追踪上游编写可达性","viewer.passport.downstream.trace":"追踪下游编写可达性","viewer.passport.close":"关闭语义护照","viewer.passport.copy":"复制链接","viewer.passport.copy.focus":"复制聚焦节点的链接","viewer.passport.relations":"关系","viewer.passport.relations.show":"显示关联关系","viewer.passport.relations.hide":"隐藏关联关系","viewer.passport.relations.list":"关联关系","viewer.passport.copyRelation":"复制关系","viewer.passport.copyNode":"复制节点","viewer.passport.copyPinned":"复制固定关系的链接","viewer.passport.copySource":"复制来源节点的链接","viewer.passport.copy.focused.success":"已复制聚焦节点链接","viewer.passport.copy.pinned.success":"已复制固定关系链接","viewer.passport.copy.focused.failed":"无法复制聚焦节点链接","viewer.passport.copy.pinned.failed":"无法复制固定关系链接","viewer.passport.relationship.none":"没有关联关系","viewer.passport.relationship.count.one":"{count} 条关系","viewer.passport.relationship.count.other":"{count} 条关系","viewer.passport.relationship.show.one":"显示 {count} 条关联关系","viewer.passport.relationship.show.other":"显示 {count} 条关联关系","viewer.passport.relationship.summary":"{out} 条出向 · {in} 条入向{loops}","viewer.passport.relationship.loops":" · {count} 条自环","viewer.passport.relationship.explorer":"直接关系浏览器","viewer.passport.relationship.help":"使用方向键浏览关系。按 Enter 或空格键固定详情；按 Escape 清除。","viewer.passport.relationship.loopsBack":"回环","viewer.passport.relationship.connectsTo":"连接到","viewer.passport.relationship.connectsFrom":"连接自","viewer.passport.relationship.pinned":"已固定关系 · {from} → {to} · {label}","viewer.passport.relationship.inspect":"检查第 {index}/{total} 条关系：{from} 到 {to}，{label}。按 Enter 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+    <div class="guided-views no-print" id="guided-views" hidden aria-label="图表引导视图">
+      <button id="guided-view-prev" type="button" aria-label="上一个引导视图" title="上一个引导视图（[）">&#8592;</button>
+      <div class="guided-view-copy">
+        <div class="guided-view-meta">
+          <span>引导视图</span>
+          <span id="guided-view-count"></span>
+          <span class="guided-view-progress" aria-hidden="true"><span id="guided-view-progress-bar"></span></span>
+          <span class="guided-view-handoff" id="guided-view-handoff" hidden aria-hidden="true"></span>
+        </div>
+        <strong id="guided-view-label">探索此系统</strong>
+        <small id="guided-view-note" aria-live="polite" aria-atomic="true">沿精选路径逐步查看，而不改变源图表。</small>
+        <div class="guided-view-trail" id="guided-view-trail" hidden role="group" aria-label="故事轨迹"></div>
+        <div class="guided-story-caption" id="guided-story-caption" hidden aria-live="polite" aria-atomic="true">
+          <span class="guided-story-caption-index" id="guided-story-caption-index">节点</span>
+          <strong id="guided-story-caption-route"></strong>
+          <small id="guided-story-caption-detail"></small>
+          <span class="guided-story-caption-next" id="guided-story-caption-next" hidden aria-hidden="true">
+            <small>下一步</small>
+            <strong id="guided-story-caption-next-label"></strong>
+          </span>
+        </div>
+      </div>
+      <button id="guided-view-next" type="button" aria-label="下一个引导视图" title="下一个引导视图（]）">&#8594;</button>
+      <div class="guided-view-actions">
+        <button class="guided-view-play" id="guided-view-play" type="button" aria-label="播放引导故事" aria-pressed="false" title="播放引导故事（P）">
+          <span id="guided-view-play-icon" aria-hidden="true">&#9654;</span>
+          <span id="guided-view-play-label">播放故事</span>
+        </button>
+        <button class="guided-view-beat-link" id="guided-view-beat-link" type="button" aria-label="选择故事节点以复制其精确链接" title="选择故事节点以复制其精确链接" disabled>
+          <span aria-hidden="true">&#35;</span>
+          <span id="guided-view-beat-link-label">复制此刻</span>
+        </button>
+        <button class="guided-view-all" id="guided-view-all" type="button" aria-label="显示完整图表">显示全部</button>
+      </div>
+      <nav class="guided-view-index" id="guided-view-index" aria-label="故事章节">
+        <ol class="guided-view-chapters" id="guided-view-chapters"></ol>
+      </nav>
+    </div>
+
+    <!-- Main Diagram -->
+    <div class="diagram-container" data-detail-level="read"
+         data-preset-badge-editorial-plate="ARCHIFY / 图版 04">
+      <svg viewBox="0 0 1340 638" role="img" lang="zh-CN" aria-labelledby="archify-diagram-title archify-diagram-description" data-preset="classic" data-quality-profile="showcase">
+        <title id="archify-diagram-title">Windup 整体架构</title>
+        <desc id="archify-diagram-description">由 Archify 生成的架构图。</desc>
+        <!-- Definitions -->
+        <defs>
+          <marker id="arrowhead" markerWidth="10" markerHeight="7" refX="9" refY="3.5" orient="auto">
+            <polygon points="0 0, 10 3.5, 0 7" class="m-default" />
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+          <marker id="arrowhead-emphasis" markerWidth="10" markerHeight="7" refX="9" refY="3.5" orient="auto">
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+            <path d="M 40 0 L 0 0 0 40" class="c-grid" stroke-width="0.5"/>
+          </pattern>
+        </defs>
+
+        <!-- Background Grid -->
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+
+        <!-- Boundaries (behind everything) -->
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+
+        <!-- Connection paths (before components for correct z-order) -->
+        <path data-edge-from="workbench" data-edge-to="edge" data-edge-label="HTTPS" data-edge-key="0" data-edge-id="https-in" data-composition-points="164,331;224,331" d="M 164 331 L 224 331" class="a-emphasis" stroke-width="1.8" marker-end="url(#arrowhead-emphasis)"/>
+        <path data-edge-from="edge" data-edge-to="webapi" data-edge-label="/api" data-edge-key="1" data-edge-id="api-proxy" data-composition-points="348,331;408,331" d="M 348 331 L 408 331" class="a-default" stroke-width="1.5" marker-end="url(#arrowhead)"/>
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+        <path data-edge-from="webapi" data-edge-to="kodo" data-edge-label="put_data" data-edge-key="3" data-edge-id="media-put" data-composition-points="463,362;463,425;102,425;102,488" d="M 463 362 L 463 417 Q 463 425 455 425 L 110 425 Q 102 425 102 433 L 102 488" class="a-dashed" stroke-width="1.5" marker-end="url(#arrowhead-dashed)"/>
+        <path data-edge-from="webapi" data-edge-to="mq" data-edge-label="XADD 入队" data-edge-key="4" data-edge-id="stream-add" data-composition-points="477,362;477,386;576,386;576,519;600,519" d="M 477 362 L 477 378 Q 477 386 485 386 L 568 386 Q 576 386 576 394 L 576 511 Q 576 519 584 519 L 600 519" class="a-dashed" stroke-width="1.5" marker-end="url(#arrowhead-dashed)"/>
+        <path data-edge-from="mq" data-edge-to="worker" data-edge-label="出队" data-edge-key="5" data-edge-id="stream-read" data-composition-points="732,519;792,519" d="M 732 519 L 792 519" class="a-emphasis" stroke-width="1.8" marker-end="url(#arrowhead-emphasis)"/>
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+        <path data-edge-from="worker" data-edge-to="mail" data-edge-label="验证码" data-edge-key="9" data-edge-id="send-code" data-composition-points="854,488;854,190" d="M 854 488 L 854 190" class="a-dashed" stroke-width="1.5" marker-end="url(#arrowhead-dashed)"/>
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+          <text data-node-label="" data-detail-anchor="" x="102" y="517" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">七牛 Kodo</text>
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+        </g>
+
+        <g id="node-mq" data-node-id="mq" data-node-label="Redis Stream" tabindex="0" role="button" aria-label="聚焦Redis Stream，邮件 / 生成 / SSE, 数据层, Redis" aria-pressed="false" data-node-kind="messagebus" data-node-sublabel="邮件 / 生成 / SSE" data-node-context="数据层" data-node-brand="Redis" data-node-brand-id="redis" data-node-brand-status="preset" data-node-brand-source="https://redis.io/brand-guidelines">
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+          <text data-node-label="" data-detail-anchor="" x="666" y="517" class="t-primary" font-size="10.5" font-weight="600" text-anchor="middle">Redis Stream</text>
+        <text data-detail="context" x="666" y="533" class="t-muted" font-size="9" text-anchor="middle">邮件 / 生成 / SSE</text>
+        </g>
+
+        <g id="node-worker" data-node-id="worker" data-node-label="Worker" tabindex="0" role="button" aria-label="聚焦Worker，邮件 · 生成, 应用机" aria-pressed="false" data-node-kind="backend" data-node-sublabel="邮件 · 生成" data-node-context="应用机">
+          <title>Worker · 邮件 · 生成 · 应用机</title>
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+          <rect x="792" y="488" width="124" height="62" rx="6" class="c-backend" stroke-width="1.5"/>
+          <g aria-hidden="true" data-semantic-sigil="backend" class="semantic-sigil s-backend" transform="translate(798 494) scale(0.6875)">
+            <path d="M6 3 3 8l3 5M10 3l3 5-3 5"/>
+          </g>
+          <text data-node-label="" data-detail-anchor="" x="854" y="517" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">Worker</text>
+        <text data-detail="context" x="854" y="533" class="t-muted" font-size="9" text-anchor="middle">邮件 · 生成</text>
+        </g>
+
+        <g id="node-aigw" data-node-id="aigw" data-node-label="AI Gateway" tabindex="0" role="button" aria-label="聚焦AI Gateway，Chat · Image · Video, 应用机" aria-pressed="false" data-node-kind="backend" data-node-sublabel="Chat · Image · Video" data-node-context="应用机">
+          <title>AI Gateway · Chat · Image · Video · 应用机</title>
+          <rect x="976" y="488" width="132" height="62" rx="6" class="c-mask"/>
+          <rect x="976" y="488" width="132" height="62" rx="6" class="c-backend" stroke-width="1.5"/>
+          <g aria-hidden="true" data-semantic-sigil="backend" class="semantic-sigil s-backend" transform="translate(982 494) scale(0.6875)">
+            <path d="M6 3 3 8l3 5M10 3l3 5-3 5"/>
+          </g>
+          <text data-node-label="" data-detail-anchor="" x="1042" y="517" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">AI Gateway</text>
+        <text data-detail="context" x="1042" y="533" class="t-muted" font-size="9" text-anchor="middle">Chat · Image · Video</text>
+        </g>
+
+        <g id="node-models" data-node-id="models" data-node-label="上游模型" tabindex="0" role="button" aria-label="聚焦上游模型，OpenAI 兼容, 架构组件" aria-pressed="false" data-node-kind="external" data-node-sublabel="OpenAI 兼容" data-node-context="架构组件">
+          <title>上游模型 · OpenAI 兼容 · 架构组件</title>
+          <rect x="1168" y="488" width="132" height="62" rx="6" class="c-mask"/>
+          <rect x="1168" y="488" width="132" height="62" rx="6" class="c-external" stroke-width="1.5"/>
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+          <text data-node-label="" data-detail-anchor="" x="1234" y="517" class="t-primary" font-size="11" font-weight="600" text-anchor="middle">上游模型</text>
+        <text data-detail="context" x="1234" y="533" class="t-muted" font-size="9" text-anchor="middle">OpenAI 兼容</text>
+        </g>
+
+        <!-- Connection labels -->
+        <g data-detail="context" data-edge-from="workbench" data-edge-to="edge" data-edge-label="HTTPS" data-edge-key="0" data-edge-id="https-in">
+          <rect x="177" y="311" width="34" height="14" rx="3" class="c-mask"/>
+          <text x="194" y="321" class="t-backend" font-size="8" text-anchor="middle">HTTPS</text>
+        </g>
+        <g data-detail="context" data-edge-from="edge" data-edge-to="webapi" data-edge-label="/api" data-edge-key="1" data-edge-id="api-proxy">
+          <rect x="363" y="311" width="30" height="14" rx="3" class="c-mask"/>
+          <text x="378" y="321" class="t-muted" font-size="8" text-anchor="middle">/api</text>
+        </g>
+        <g data-detail="context" data-edge-from="webapi" data-edge-to="pg" data-edge-label="SQL" data-edge-key="2" data-edge-id="sql-write">
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+          <text x="523" y="266" class="t-muted" font-size="8" text-anchor="middle">SQL</text>
+        </g>
+        <g data-detail="context" data-edge-from="webapi" data-edge-to="kodo" data-edge-label="put_data" data-edge-key="3" data-edge-id="media-put">
+          <rect x="258.3" y="405" width="48.4" height="14" rx="3" class="c-mask"/>
+          <text x="282.5" y="415" class="t-messagebus" font-size="8" text-anchor="middle">put_data</text>
+        </g>
+        <g data-detail="context" data-edge-from="webapi" data-edge-to="mq" data-edge-label="XADD 入队" data-edge-key="4" data-edge-id="stream-add">
+          <rect x="499.9" y="366" width="53.199999999999996" height="14" rx="3" class="c-mask"/>
+          <text x="526.5" y="376" class="t-messagebus" font-size="8" text-anchor="middle">XADD 入队</text>
+        </g>
+        <g data-detail="context" data-edge-from="mq" data-edge-to="worker" data-edge-label="出队" data-edge-key="5" data-edge-id="stream-read">
+          <rect x="747" y="499" width="30" height="14" rx="3" class="c-mask"/>
+          <text x="762" y="509" class="t-backend" font-size="8" text-anchor="middle">出队</text>
+        </g>
+        <g data-detail="context" data-edge-from="worker" data-edge-to="aigw" data-edge-label="进程内" data-edge-key="6" data-edge-id="in-process">
+          <rect x="926.6" y="499" width="38.8" height="14" rx="3" class="c-mask"/>
+          <text x="946" y="509" class="t-muted" font-size="8" text-anchor="middle">进程内</text>
+        </g>
+        <g data-detail="context" data-edge-from="aigw" data-edge-to="models" data-edge-label="HTTPS" data-edge-key="7" data-edge-id="model-https">
+          <rect x="1121" y="499" width="34" height="14" rx="3" class="c-mask"/>
+          <text x="1138" y="509" class="t-backend" font-size="8" text-anchor="middle">HTTPS</text>
+        </g>
+        <g data-detail="context" data-edge-from="worker" data-edge-to="pg" data-edge-label="状态回写" data-edge-key="8" data-edge-id="status-back">
+          <rect x="735.8" y="319" width="48.4" height="14" rx="3" class="c-mask"/>
+          <text x="760" y="329" class="t-muted" font-size="8" text-anchor="middle">状态回写</text>
+        </g>
+        <g data-detail="context" data-edge-from="worker" data-edge-to="mail" data-edge-label="验证码" data-edge-key="9" data-edge-id="send-code">
+          <rect x="860.6" y="300" width="38.8" height="14" rx="3" class="c-mask"/>
+          <text x="880" y="310" class="t-messagebus" font-size="8" text-anchor="middle">验证码</text>
+        </g>
+
+        <!-- Boundary labels (foreground masks keep routes out of titles) -->
+        <g data-graph-role="structural-frame-label" data-composition-frame-id="0" data-composition-frame-kind="region" data-composition-frame-label="应用机">
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+        </g>
+
+        <g data-graph-role="structural-frame-label" data-composition-frame-id="1" data-composition-frame-kind="region" data-composition-frame-label="数据层">
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+          <text data-boundary-label="" x="578" y="121" class="t-cloud" font-size="9" font-weight="600">数据层</text>
+        </g>
+
+        <!-- Legend -->
+        <g data-legend="" data-legend-bridge="">
+          <text x="40" y="602" class="t-primary" font-size="12" font-weight="650">图例</text>
+          <g data-legend-semantic-kind="frontend" data-legend-kind="frontend" data-legend-label="前端" data-legend-x="40" data-legend-baseline="622" data-legend-width="63">
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+          </g>
+          <g data-legend-semantic-kind="backend" data-legend-kind="backend" data-legend-label="后端" data-legend-x="125" data-legend-baseline="622" data-legend-width="63">
+            <rect x="125" y="613" width="16" height="10" rx="2.5" class="c-backend" stroke-width="1"/>
+            <text x="147" y="622" class="t-muted" font-size="10" font-weight="500">后端</text>
+          </g>
+          <g data-legend-semantic-kind="database" data-legend-kind="database" data-legend-label="数据库" data-legend-x="210" data-legend-baseline="622" data-legend-width="73">
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+          </g>
+          <g data-legend-semantic-kind="cloud" data-legend-kind="cloud" data-legend-label="云服务" data-legend-x="305" data-legend-baseline="622" data-legend-width="73">
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+          </g>
+          <g data-legend-semantic-kind="messagebus" data-legend-kind="messagebus" data-legend-label="消息总线" data-legend-x="400" data-legend-baseline="622" data-legend-width="83">
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+          </g>
+          <g data-legend-semantic-kind="external" data-legend-kind="external" data-legend-label="外部系统" data-legend-x="505" data-legend-baseline="622" data-legend-width="83">
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+          </g>
+        </g>
+      </svg>
+      <p class="intent-trace-status no-print" id="intent-trace-status" role="status" aria-live="polite" aria-atomic="true"></p>
+      <div class="share-chapter-cue no-print" id="share-chapter-cue" hidden role="status" aria-live="polite">
+        <div class="share-chapter-index">
+          <span class="share-chapter-state" id="share-chapter-state">就绪</span>
+          <span class="share-chapter-count" id="share-chapter-count">章节 01 / 01</span>
+        </div>
+        <div class="share-chapter-copy">
+          <strong id="share-chapter-label">引导章节</strong>
+          <small id="share-chapter-note"></small>
+        </div>
+        <span class="share-chapter-route" id="share-chapter-route"></span>
+        <span class="share-chapter-progress" aria-hidden="true"><span id="share-chapter-progress-bar"></span></span>
+      </div>
+      <div class="diagram-guide no-print" id="diagram-guide" hidden role="dialog" aria-modal="false" aria-labelledby="diagram-guide-title">
+        <div class="diagram-guide-head">
+          <span>
+            <span class="diagram-guide-eyebrow">图表指南</span>
+            <strong class="diagram-guide-title" id="diagram-guide-title">探索此系统</strong>
+          </span>
+          <button class="diagram-guide-close" id="diagram-guide-close" type="button" aria-label="关闭图表指南">&#215;</button>
+        </div>
+        <p class="diagram-guide-stats" id="diagram-guide-stats">正在检查已编译语义</p>
+        <div class="diagram-guide-actions" id="diagram-guide-actions" role="group" aria-label="图表探索操作">
+          <button class="diagram-guide-action" type="button" data-guide-action="find" aria-label="查找任意节点">
+            <span class="diagram-guide-index" aria-hidden="true">01</span>
+            <span class="diagram-guide-action-copy"><strong>查找任意节点</strong><small>搜索标签、职责、类型和稳定 ID。</small></span>
+            <kbd aria-hidden="true">/</kbd>
+          </button>
+          <button class="diagram-guide-action" type="button" data-guide-action="route" aria-label="追踪有向路径">
+            <span class="diagram-guide-index" aria-hidden="true">02</span>
+            <span class="diagram-guide-action-copy"><strong>追踪路径</strong><small>查看两个语义节点如何按编写方向连接。</small></span>
+            <kbd aria-hidden="true">R</kbd>
+          </button>
+          <button class="diagram-guide-action" type="button" data-guide-action="map" aria-label="查看完整系统">
+            <span class="diagram-guide-index" aria-hidden="true">03</span>
+            <span class="diagram-guide-action-copy"><strong>查看完整系统</strong><small>打开带实时视口和稳定节点的语义雷达。</small></span>
+            <kbd aria-hidden="true">M</kbd>
+          </button>
+          <button class="diagram-guide-action" type="button" data-guide-action="lens" aria-label="比较语义类型">
+            <span class="diagram-guide-index" aria-hidden="true">04</span>
+            <span class="diagram-guide-action-copy"><strong>比较语义类型</strong><small>统计角色、显示流量并比较直接编写的连接。</small></span>
+            <kbd aria-hidden="true">L</kbd>
+          </button>
+          <button class="diagram-guide-action" type="button" data-guide-action="story" aria-label="播放引导故事">
+            <span class="diagram-guide-index" aria-hidden="true">05</span>
+            <span class="diagram-guide-action-copy"><strong>播放引导故事</strong><small id="diagram-guide-story-copy">浏览已编写的章节和真实关系。</small></span>
+            <kbd aria-hidden="true">P</kbd>
+          </button>
+          <button class="diagram-guide-action" type="button" data-guide-action="present" aria-label="进入演示模式">
+            <span class="diagram-guide-index" aria-hidden="true">06</span>
+            <span class="diagram-guide-action-copy"><strong>进入演示模式</strong><small>让实时图表占满视口，同时不改变导出。</small></span>
+            <kbd aria-hidden="true">F</kbd>
+          </button>
+        </div>
+        <div class="diagram-guide-shortcuts" aria-label="其他键盘快捷键">
+          <span><kbd>E</kbd> 导出</span><span><kbd>T</kbd> 主题</span><span><kbd>S</kbd> 风格</span><span><kbd>0</kbd> 重置</span><span><kbd>+</kbd> 放大</span><span><kbd>-</kbd> 缩小</span><span><kbd>Esc</kbd> 关闭</span>
+        </div>
+        <p class="diagram-guide-feedback" id="diagram-guide-feedback" aria-live="polite"></p>
+      </div>
+      <div class="node-finder no-print" id="node-finder" hidden role="dialog" aria-modal="false" aria-labelledby="node-finder-title">
+        <div class="node-finder-head">
+          <strong id="node-finder-title">查找节点</strong>
+          <button class="node-finder-close" id="node-finder-close" type="button" aria-label="关闭节点查找器">&#215;</button>
+        </div>
+        <div class="node-finder-search">
+          <span aria-hidden="true">&#8981;</span>
+          <input class="node-finder-input" id="node-finder-input" type="search" autocomplete="off" spellcheck="false" placeholder="搜索标签或 ID" aria-label="搜索图表节点" aria-describedby="node-finder-status">
+          <kbd aria-hidden="true">/</kbd>
+        </div>
+        <div class="node-finder-results" id="node-finder-results" role="group" aria-label="图表节点"></div>
+        <p class="node-finder-empty" id="node-finder-empty" hidden>没有匹配的节点</p>
+        <p class="node-finder-status" id="node-finder-status" aria-live="polite"></p>
+      </div>
+      <div class="focus-chip relationship-lens no-print" id="focus-chip" hidden role="region" aria-labelledby="relationship-lens-title">
+        <div class="relationship-lens-head">
+          <div class="relationship-lens-copy">
+            <span class="relationship-lens-eyebrow">语义护照</span>
+            <strong class="relationship-lens-title" id="relationship-lens-title"><span id="focus-label"></span></strong>
+            <span class="semantic-passport-detail" id="focus-detail" hidden></span>
+            <div class="semantic-passport-meta" id="focus-passport-meta" aria-label="节点元数据">
+              <span id="focus-kind" data-passport="kind"></span>
+              <span id="focus-context" data-passport="context" hidden></span>
+              <span id="focus-tag" data-passport="tag" hidden></span>
+              <span id="focus-brand" data-passport="brand" hidden></span>
+              <code id="focus-id" data-passport="id"></code>
+            </div>
+            <div class="semantic-passport-evidence" id="focus-evidence" hidden aria-label="已验证的源代码证据">
+              <div class="semantic-passport-evidence-head">
+                <span class="semantic-passport-evidence-status">已验证来源</span>
+                <a class="semantic-passport-repository" id="focus-repository" target="_blank" rel="noopener noreferrer" referrerpolicy="no-referrer"></a>
+              </div>
+              <div class="semantic-passport-evidence-links" id="focus-evidence-links"></div>
+            </div>
+            <span class="relationship-lens-summary" id="focus-summary" aria-live="polite"></span>
+            <div class="semantic-passport-reach" id="focus-reach" hidden>
+              <span class="semantic-passport-reach-label">编写可达范围</span>
+              <div class="semantic-passport-reach-actions" role="group" aria-label="追踪编写的可达性">
+                <button id="btn-reach-upstream" type="button" aria-label="追踪上游编写可达性" aria-pressed="false">
+                  <span>上游</span><strong id="focus-reach-upstream-count">0</strong>
+                </button>
+                <button id="btn-reach-downstream" type="button" aria-label="追踪下游编写可达性" aria-pressed="false">
+                  <span>下游</span><strong id="focus-reach-downstream-count">0</strong>
+                </button>
+              </div>
+              <small class="semantic-passport-reach-status" id="focus-reach-status" hidden aria-live="polite"></small>
+            </div>
+          </div>
+          <div class="relationship-lens-actions">
+            <button id="btn-focus-clear" type="button" aria-label="关闭语义护照" title="关闭">&#215;</button>
+            <button id="btn-focus-copy" type="button" aria-label="复制聚焦节点的链接">复制链接</button>
+            <button id="btn-focus-relations" type="button" aria-label="显示关联关系" aria-expanded="false" aria-controls="relationship-lens-list">关系</button>
+          </div>
+        </div>
+        <div class="relationship-lens-list" id="relationship-lens-list" aria-label="关联关系"></div>
+      </div>
+      <div class="route-probe no-print" id="route-probe" hidden role="region" aria-labelledby="route-probe-title" data-state="idle">
+        <div class="route-probe-head">
+          <span class="route-probe-copy">
+            <span class="route-probe-eyebrow">路径探测</span>
+            <strong class="route-probe-title" id="route-probe-title">选择起点节点</strong>
+          </span>
+          <span class="route-probe-actions">
+            <button class="route-probe-find" id="route-probe-find" type="button" aria-label="查找路径起点" data-node-finder-trigger>查找起点</button>
+            <button class="route-probe-copy-link" id="route-probe-copy" type="button" aria-label="复制已追踪路径的链接" hidden>复制链接</button>
+            <button id="route-probe-clear" type="button" aria-label="清除路径探测">清除</button>
+          </span>
+        </div>
+        <div class="route-probe-path" id="route-probe-path" aria-label="已追踪路径">
+          <span class="route-probe-placeholder">在图表中选择两个语义节点</span>
+        </div>
+        <div class="route-journey-controls" id="route-journey-controls" hidden role="group" aria-label="路径旅程控制" data-playing="false">
+          <button id="route-journey-prev" type="button" aria-label="上一个路径位置" title="上一个路径位置">&#8592;</button>
+          <button class="route-journey-play" id="route-journey-play" type="button" aria-label="播放路径旅程" aria-pressed="false" title="播放路径旅程">
+            <span id="route-journey-play-icon" aria-hidden="true">&#9654;</span>
+            <span id="route-journey-play-label">旅程</span>
+          </button>
+          <button id="route-journey-next" type="button" aria-label="下一个路径位置" title="下一个路径位置">&#8594;</button>
+          <button class="route-journey-overview" id="route-journey-overview" type="button" aria-label="显示完整路径总览" title="显示完整路径总览">总览</button>
+        </div>
+        <small class="route-probe-status" id="route-probe-status" aria-live="polite">先选择来源，再选择目标；方向很重要。</small>
+      </div>
+      <div class="semantic-lens no-print" id="semantic-lens" hidden role="dialog" aria-modal="false" aria-labelledby="semantic-lens-title">
+        <div class="semantic-lens-head">
+          <span>
+            <span class="semantic-lens-eyebrow">语义透镜</span>
+            <strong class="semantic-lens-title" id="semantic-lens-title">比较系统角色</strong>
+          </span>
+          <button class="semantic-lens-close" id="semantic-lens-close" type="button" aria-label="关闭语义透镜">&#215;</button>
+        </div>
+        <p class="semantic-lens-instruction">最多选择两种语义类型。选择一种可显示其真实流量；选择两种只比较直接编写的关系。</p>
+        <div class="semantic-lens-kinds" id="semantic-lens-kinds" role="group" aria-label="语义类型"></div>
+        <p class="semantic-lens-status" id="semantic-lens-status" aria-live="polite">选择一种类型以检查其节点和相连关系。</p>
+        <div class="semantic-lens-actions">
+          <button id="semantic-lens-copy" type="button" aria-label="复制语义透镜链接" hidden>复制链接</button>
+          <button id="semantic-lens-clear" type="button" aria-label="清除语义透镜">清除</button>
+        </div>
+      </div>
+      <div class="overview-map no-print" id="overview-map" hidden role="region" aria-labelledby="overview-map-title">
+        <div class="overview-map-head">
+          <span class="overview-map-live" aria-hidden="true"></span>
+          <span class="overview-map-copy">
+            <strong id="overview-map-title">语义雷达</strong>
+            <small id="overview-map-status" aria-live="polite">正在构建总览</small>
+          </span>
+          <button class="overview-map-expand" id="overview-map-expand" type="button" aria-label="打开完整语义雷达">打开雷达</button>
+          <button class="overview-map-close" id="overview-map-close" type="button" aria-label="关闭语义雷达">&#215;</button>
+        </div>
+        <div class="overview-map-surface" id="overview-map-surface" tabindex="0" role="group" aria-label="图表总览。点击节点进行聚焦，或使用方向键平移。"></div>
+        <div class="overview-map-hint" aria-hidden="true"><span>点击节点</span><span>拖动平移</span></div>
+      </div>
+      <p class="overview-map-feedback no-print" id="overview-map-feedback" role="status" aria-live="polite" hidden>语义雷达需要更多地图可见空间。</p>
+      <div class="diagram-nav no-print" role="toolbar" aria-label="图表视图控制">
+        <button id="btn-route-probe" type="button" aria-label="追踪有向路径" aria-pressed="false" aria-controls="route-probe" title="追踪路径（R）">路径</button>
+        <button id="btn-overview-map" type="button" aria-label="打开语义雷达" aria-expanded="false" aria-controls="overview-map" title="语义雷达（M）">地图</button>
+        <button id="btn-semantic-lens" type="button" aria-label="打开语义透镜" aria-haspopup="dialog" aria-expanded="false" aria-pressed="false" aria-controls="semantic-lens" title="语义透镜（L）">透镜</button>
+        <button id="btn-node-finder" type="button" aria-label="查找节点" aria-haspopup="dialog" aria-expanded="false" aria-controls="node-finder" title="查找节点（/）" data-node-finder-trigger><span class="diagram-nav-icon find" aria-hidden="true"></span></button>
+        <button id="btn-diagram-guide" type="button" aria-label="打开图表指南" aria-haspopup="dialog" aria-expanded="false" aria-controls="diagram-guide" title="图表指南（?）"><span class="diagram-nav-icon guide" aria-hidden="true"></span></button>
+        <button data-view="out" type="button" aria-label="缩小" title="缩小（-）"><span class="diagram-nav-icon minus" aria-hidden="true"></span></button>
+        <button data-view="reset" type="button" aria-label="重置图表视图" title="重置视图（0）"><span class="diagram-nav-detail" data-view-detail hidden>阅读</span><span class="diagram-nav-percent" data-view-percent>100%</span></button>
+        <button data-view="in" type="button" aria-label="放大" title="放大（+）"><span class="diagram-nav-icon plus" aria-hidden="true"></span></button>
+      </div>
+    </div>
+
+    <!-- Info Cards -->
+    <div class="cards">
+      <div class="card">
+        <div class="card-header">
+          <div class="card-dot cyan"></div>
+          <h3>产品面</h3>
+        </div>
+        <ul>
+          <li>&bull; React 工作台覆盖落地页、项目、Quick Start、Workflow Editor、Playtest 与导出</li>
+          <li>&bull; 宿主机 Nginx 提供 SPA 并反代 /api</li>
+          <li>&bull; FastAPI 挂载鉴权、项目、角色、流程、生成、媒资、积分与 /ai</li>
+        </ul>
+      </div>
+
+      <div class="card">
+        <div class="card-header">
+          <div class="card-dot emerald"></div>
+          <h3>执行面</h3>
+        </div>
+        <ul>
+          <li>&bull; Worker 同时消费邮件 Stream 与图片/动作生成 Stream</li>
+          <li>&bull; 生成经进程内 ImageGateway / VideoGateway 调上游</li>
+          <li>&bull; 进度经 Redis Pub/Sub 推 SSE 回浏览器</li>
+        </ul>
+      </div>
+
+      <div class="card">
+        <div class="card-header">
+          <div class="card-dot amber"></div>
+          <h3>登录与媒资</h3>
+        </div>
+        <ul>
+          <li>&bull; 注册/登录验证码经 Resend 发出，验证码本身存在 Redis</li>
+          <li>&bull; 参考图与生成产物 put_data 到七牛 Kodo</li>
+          <li>&bull; 用户、资产、任务与积分账本落在 PostgreSQL</li>
+        </ul>
+      </div>
+    </div>
+
+  </div>
+
+  <script>
+    var Archify = {};
+    var archifyI18nData = (function () {
+      var node = document.getElementById('archify-i18n-data');
+      try { return JSON.parse(node ? node.textContent : '{}'); }
+      catch (_) { return { locale: 'en', messages: {} }; }
+    })();
+    Archify.locale = archifyI18nData.locale || 'en';
+
+    function viewerText(key, values) {
+      var messages = archifyI18nData.messages || {};
+      var template = Object.prototype.hasOwnProperty.call(messages, key) ? messages[key] : key;
+      return String(template).replace(/\{([a-zA-Z0-9_]+)\}/g, function (match, name) {
+        return values && Object.prototype.hasOwnProperty.call(values, name) ? String(values[name]) : match;
+      });
+    }
+
+    function viewerCount(key, count, values) {
+      var suffix = Number(count) === 1 ? '.one' : '.other';
+      var payload = Object.assign({}, values || {}, { count: count });
+      return viewerText(key + suffix, payload);
+    }
+
+    function viewerKindLabel(value) {
+      var normalized = String(value || 'node').toLowerCase();
+      var knownKey = 'viewer.kind.' + normalized;
+      var known = viewerText(knownKey);
+      if (known !== knownKey) return known;
+      return normalized
+        .replace(/messagebus/gi, 'message bus')
+        .replace(/[-_]+/g, ' ')
+        .replace(/\b\w/g, function (letter) { return letter.toUpperCase(); });
+    }
+
+    function hasDrawableGeometry(element) {
+      if (!element) return false;
+      var geometries = /^(path|line|polyline)$/i.test(element.tagName)
+        ? [element]
+        : Array.prototype.slice.call(element.querySelectorAll('path, line, polyline'));
+      return geometries.some(function (geometry) {
+        var source = geometry.tagName.toLowerCase() === 'path'
+          ? geometry.getAttribute('d')
+          : geometry.tagName.toLowerCase() === 'polyline'
+            ? geometry.getAttribute('points')
+            : [geometry.getAttribute('x1'), geometry.getAttribute('y1'), geometry.getAttribute('x2'), geometry.getAttribute('y2')].join(' ');
+        if (!source || /(?:^|[^a-z])(?:nan|infinity)(?:[^a-z]|$)/i.test(source) || typeof geometry.getTotalLength !== 'function') return false;
+        try {
+          var length = Number(geometry.getTotalLength());
+          return Number.isFinite(length) && length > 0;
+        } catch (_) {
+          return false;
+        }
+      });
+    }
+
+    /* ============================================================
+       Visual style try-on — one topology, four bundled presets.
+       The reader's choice is intentionally session-only: it updates the
+       live page and canonical SVG together, but never rewrites the source,
+       URL, or a later diagram's authored default.
+       ============================================================ */
+    Archify.preset = (function () {
+      var PRESETS = ['classic', 'signal-flow', 'blueprint', 'editorial'];
+      var LABELS = {
+        classic: viewerText('viewer.preset.classic.short'),
+        'signal-flow': viewerText('viewer.preset.flow.short'),
+        blueprint: viewerText('viewer.preset.blueprint'),
+        editorial: viewerText('viewer.preset.editorial')
+      };
+      var html = document.documentElement;
+      var svg = document.querySelector('.diagram-container svg');
+      var btn = document.getElementById('btn-preset');
+      var label = document.getElementById('preset-label');
+      var menu = document.getElementById('preset-menu');
+      var options = function () {
+        return Array.prototype.slice.call(menu.querySelectorAll('[data-preset-value]'));
+      };
+      var authored = PRESETS.indexOf(html.getAttribute('data-preset')) >= 0
+        ? html.getAttribute('data-preset')
+        : 'classic';
+
+      function current() {
+        var value = html.getAttribute('data-preset');
+        return PRESETS.indexOf(value) >= 0 ? value : authored;
+      }
+      function nextAfter(preset) {
+        return PRESETS[(PRESETS.indexOf(preset) + 1) % PRESETS.length];
+      }
+      function apply(preset) {
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (PRESETS.indexOf(preset) < 0) return false;
+        html.setAttribute('data-preset', preset);
+        svg.setAttribute('data-preset', preset);
+        btn.setAttribute('data-preset-option', preset);
+        label.textContent = LABELS[preset];
+        btn.setAttribute('aria-label', viewerText('viewer.preset.current', { style: LABELS[preset] }));
+        btn.title = viewerText('viewer.preset.choose.title');
+        options().forEach(function (option) {
+          var selected = option.getAttribute('data-preset-value') === preset;
+          option.setAttribute('aria-checked', String(selected));
+        });
+        return true;
+      }
+      function cycle() { return apply(nextAfter(current())); }
+
+      function isOpen() { return menu.classList.contains('open'); }
+      function open(focusLast) {
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (Archify.exportMenu && Archify.exportMenu.isOpen()) Archify.exportMenu.close(false);
+        menu.classList.add('open');
+        btn.setAttribute('aria-expanded', 'true');
+        var available = options();
+        var selected = available.find(function (option) { return option.getAttribute('aria-checked') === 'true'; });
+        var target = focusLast ? available[available.length - 1] : (selected || available[0]);
+        if (target) target.focus();
+        return true;
+      }
+      function close(focusTrigger) {
+        menu.classList.remove('open');
+        btn.setAttribute('aria-expanded', 'false');
+        if (focusTrigger) btn.focus();
+        return false;
+      }
+
+      apply(authored);
+      btn.addEventListener('click', function (e) {
+        e.stopPropagation();
+        if (isOpen()) close(false);
+        else open(false);
+      });
+      btn.addEventListener('keydown', function (e) {
+        if (e.key === 'ArrowDown' || e.key === 'ArrowUp') {
+          e.preventDefault();
+          if (!isOpen()) open(e.key === 'ArrowUp');
+        }
+      });
+      document.addEventListener('click', function (e) {
+        if (!menu.contains(e.target) && e.target !== btn) close(false);
+      });
+      menu.addEventListener('click', function (e) {
+        var option = e.target.closest('[data-preset-value]');
+        if (!option || !menu.contains(option)) return;
+        if (apply(option.getAttribute('data-preset-value'))) close(true);
+      });
+      menu.addEventListener('keydown', function (e) {
+        if (e.key === 'Escape') { e.preventDefault(); close(true); return; }
+        if (e.key === 'Tab') { close(false); return; }
+        var available = options();
+        var active = available.indexOf(document.activeElement);
+        switch (e.key) {
+          case 'ArrowDown':
+            e.preventDefault();
+            if (available.length) available[(active + 1 + available.length) % available.length].focus();
+            break;
+          case 'ArrowUp':
+            e.preventDefault();
+            if (available.length) available[(active - 1 + available.length) % available.length].focus();
+            break;
+          case 'Home':
+            e.preventDefault();
+            if (available[0]) available[0].focus();
+            break;
+          case 'End':
+            e.preventDefault();
+            if (available.length) available[available.length - 1].focus();
+            break;
+        }
+      });
+      return { cycle: cycle, apply: apply, current: current, authored: authored, open: open, close: close, isOpen: isOpen };
+    })();
+
+    /* ============================================================
+       Theme toggle — persists to localStorage, respects system pref
+       ============================================================ */
+
+    Archify.theme = (function () {
+      var STORAGE_KEY = 'archify-theme';
+      var html = document.documentElement;
+      var btn = document.getElementById('btn-theme');
+      var label = document.getElementById('theme-label');
+
+      // localStorage can throw (blocked cookies, sandboxed iframes); the whole
+      // script element dies on an uncaught error, so guard every access.
+      function readStored() {
+        try { return localStorage.getItem(STORAGE_KEY); } catch (_) { return null; }
+      }
+      function writeStored(value) {
+        try { localStorage.setItem(STORAGE_KEY, value); } catch (_) {}
+      }
+      function urlOverride() {
+        // URL param wins (useful for deterministic screenshots / share links)
+        try {
+          var param = new URLSearchParams(window.location.search).get('theme');
+          if (param === 'light' || param === 'dark') return param;
+        } catch (_) {}
+        return null;
+      }
+
+      function resolveInitial() {
+        var fromUrl = urlOverride();
+        if (fromUrl) return fromUrl;
+        var saved = readStored();
+        if (saved === 'light' || saved === 'dark') return saved;
+        return window.matchMedia('(prefers-color-scheme: light)').matches ? 'light' : 'dark';
+      }
+
+      function apply(theme) {
+        html.setAttribute('data-theme', theme);
+        label.textContent = viewerText(theme === 'dark' ? 'viewer.theme.dark' : 'viewer.theme.light');
+        btn.setAttribute('aria-pressed', theme === 'light' ? 'true' : 'false');
+      }
+
+      function toggle() {
+        var next = html.getAttribute('data-theme') === 'dark' ? 'light' : 'dark';
+        apply(next);
+        writeStored(next);
+      }
+
+      apply(resolveInitial());
+      btn.addEventListener('click', toggle);
+
+      // Follow live OS theme changes while the user has no explicit preference.
+      try {
+        var media = window.matchMedia('(prefers-color-scheme: light)');
+        var onChange = function (e) {
+          var saved = readStored();
+          if (urlOverride() || saved === 'light' || saved === 'dark') return;
+          apply(e.matches ? 'light' : 'dark');
+        };
+        if (media.addEventListener) media.addEventListener('change', onChange);
+        else if (media.addListener) media.addListener(onChange);
+      } catch (_) {}
+
+      return { toggle: toggle };
+    })();
+
+    /* ============================================================
+       Export — Share Card / PNG / JPEG / WebP / SVG / WebM and clipboard
+
+       Raster exports are always rendered at 4x source resolution for
+       maximum sharpness. The trick: we set the serialized SVG's
+       `width`/`height` to viewBox * 4 so the browser rasterizes the
+       vectors at that resolution natively. drawImage then draws at
+       the image's natural size (no upscaling = no blur).
+
+       JPEG/WebP paint the current theme's background explicitly since
+       those formats have no alpha channel.
+       ============================================================ */
+    (function () {
+      var RASTER_SCALE = 4;
+      var MOTION_DURATION = 6000;
+      var MOTION_FPS = 30;
+      var SHARE_CARD_WIDTH = 1200;
+      var SHARE_CARD_HEIGHT = 630;
+      var SHARE_CARD_PADDING = 36;
+      var SHARE_CARD_HEADER = 112;
+
+      function exportError(key, values) {
+        var error = new Error(viewerText(key, values));
+        error.archifyViewerMessage = true;
+        return error;
+      }
+
+      function exportMessage(error) {
+        return error && error.archifyViewerMessage
+          ? error.message
+          : viewerText('viewer.export.unknown');
+      }
+
+      function diagramFilename() {
+        var title = (document.title || 'diagram')
+          .replace(/\s+Architecture(\s+Diagram)?$/i, '')
+          .replace(/\s+Diagram$/i, '')
+          .trim();
+        return title.replace(/[^a-z0-9_\-]+/gi, '-')
+                    .toLowerCase()
+                    .replace(/^-+|-+$/g, '') || 'diagram';
+      }
+
+      function currentBg() {
+        return getComputedStyle(document.body).backgroundColor || '#ffffff';
+      }
+
+      /**
+       * Serialize the main SVG into a standalone document.
+       *
+       * Two modes:
+       * - Default (opts.autoTheme=false) — locks the serialized SVG to the
+       *   viewer's current theme. Used by the raster pipeline
+       *   (PNG/JPEG/WebP/clipboard) because canvas rasterization needs
+       *   deterministic colors; a raster cannot react to
+       *   prefers-color-scheme after encoding.
+       * - autoTheme=true — emits BOTH dark and light variable sets plus a
+       *   `@media (prefers-color-scheme)` rule so the resulting SVG
+       *   self-themes when embedded in GitHub READMEs or other hosts that
+       *   expose a color scheme. Used for "Download SVG".
+       */
+      function applyRouteSnapshot(clone, snapshot) {
+        if (!snapshot || !Array.isArray(snapshot.nodeIds) || !Array.isArray(snapshot.edges) ||
+            snapshot.nodeIds.length < 2 || snapshot.edges.length !== snapshot.nodeIds.length - 1 ||
+            snapshot.hops !== snapshot.edges.length ||
+            !snapshot.source || !snapshot.target ||
+            snapshot.source.id !== snapshot.nodeIds[0] ||
+            snapshot.target.id !== snapshot.nodeIds[snapshot.nodeIds.length - 1]) return false;
+
+        clone.removeAttribute('data-animation');
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-animate]'), function (element) {
+          element.removeAttribute('data-animate');
+          element.style.removeProperty('--step');
+        });
+
+        var cloneNodes = Array.prototype.slice.call(clone.querySelectorAll('[data-node-id]'));
+        var cloneEdges = Array.prototype.slice.call(clone.querySelectorAll('[data-edge-key]'));
+        var nodeIds = Object.create(null);
+        var edgeKeys = Object.create(null);
+        var nodeMatches = [];
+        var edgeMatches = [];
+
+        for (var nodeIndex = 0; nodeIndex < snapshot.nodeIds.length; nodeIndex++) {
+          var nodeId = snapshot.nodeIds[nodeIndex];
+          if (typeof nodeId !== 'string' || !nodeId || nodeIds[nodeId]) return false;
+          var matchedNodes = cloneNodes.filter(function (candidate) {
+            return candidate.getAttribute('data-node-id') === nodeId;
+          });
+          if (matchedNodes.length !== 1) return false;
+          nodeIds[nodeId] = true;
+          nodeMatches.push(matchedNodes);
+        }
+
+        for (var edgeIndex = 0; edgeIndex < snapshot.edges.length; edgeIndex++) {
+          var edge = snapshot.edges[edgeIndex];
+          var fromId = snapshot.nodeIds[edgeIndex];
+          var toId = snapshot.nodeIds[edgeIndex + 1];
+          if (!edge || typeof edge.key !== 'string' || !edge.key || edgeKeys[edge.key] ||
+              edge.from !== fromId || edge.to !== toId) return false;
+          var matchedEdges = cloneEdges.filter(function (candidate) {
+            return candidate.getAttribute('data-edge-key') === edge.key;
+          });
+          var drawableMatches = matchedEdges.filter(hasDrawableGeometry);
+          if (!matchedEdges.length || drawableMatches.length !== 1 || !matchedEdges.every(function (candidate) {
+            return candidate.getAttribute('data-edge-from') === edge.from &&
+              candidate.getAttribute('data-edge-to') === edge.to &&
+              (candidate.getAttribute('data-edge-id') || '') === (edge.id || '');
+          })) return false;
+          edgeKeys[edge.key] = true;
+          edgeMatches.push(matchedEdges);
+        }
+
+        clone.setAttribute('data-share-route', '');
+        nodeMatches.forEach(function (matches, step) {
+          matches.forEach(function (element) {
+            element.setAttribute('data-share-route-match', '');
+            element.setAttribute('data-share-route-step', String(step));
+            if (step === 0) element.setAttribute('data-share-route-start', '');
+            else if (step === snapshot.nodeIds.length - 1) element.setAttribute('data-share-route-end', '');
+            else element.setAttribute('data-share-route-middle', '');
+          });
+        });
+        edgeMatches.forEach(function (matches, step) {
+          matches.forEach(function (element) {
+            element.setAttribute('data-share-route-match', '');
+            element.setAttribute('data-share-route-step', String(step));
+          });
+        });
+
+        return clone.hasAttribute('data-share-route') &&
+          !clone.hasAttribute('data-animation') &&
+          !clone.hasAttribute('data-route-active') &&
+          !clone.hasAttribute('data-route-journey') &&
+          clone.querySelectorAll('[data-animate], [data-route-match], [data-route-step], [data-route-start], [data-route-end], [data-route-journey-state], [data-route-journey-current], [data-route-journey-overlay]').length === 0 &&
+          clone.querySelectorAll('[data-share-route-match]').length ===
+            nodeMatches.reduce(function (count, matches) { return count + matches.length; }, 0) +
+            edgeMatches.reduce(function (count, matches) { return count + matches.length; }, 0);
+      }
+
+      function applyReachSnapshot(clone, snapshot) {
+        if (!snapshot || (snapshot.direction !== 'upstream' && snapshot.direction !== 'downstream') ||
+            !snapshot.origin || typeof snapshot.origin.id !== 'string' || !snapshot.origin.id ||
+            typeof snapshot.origin.label !== 'string' || !snapshot.origin.label.trim() ||
+            !Array.isArray(snapshot.nodeIds) || snapshot.nodeIds.length < 2 ||
+            !Array.isArray(snapshot.edges) || !snapshot.edges.length ||
+            !snapshot.depths || typeof snapshot.depths !== 'object' ||
+            !Number.isInteger(snapshot.maxDepth) || snapshot.maxDepth < 1 ||
+            snapshot.nodeIds[0] !== snapshot.origin.id) return false;
+
+        clone.removeAttribute('data-animation');
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-animate]'), function (element) {
+          element.removeAttribute('data-animate');
+          element.style.removeProperty('--step');
+        });
+
+        var cloneNodes = Array.prototype.slice.call(clone.querySelectorAll('[data-node-id]'));
+        var cloneEdges = Array.prototype.slice.call(clone.querySelectorAll('[data-edge-key]'));
+        var nodeIds = Object.create(null);
+        var edgeKeys = Object.create(null);
+        var nodeMatches = [];
+        var edgeMatches = [];
+        var measuredMaxDepth = 0;
+
+        for (var nodeIndex = 0; nodeIndex < snapshot.nodeIds.length; nodeIndex++) {
+          var nodeId = snapshot.nodeIds[nodeIndex];
+          var depth = snapshot.depths[nodeId];
+          if (typeof nodeId !== 'string' || !nodeId || nodeIds[nodeId] ||
+              !Number.isInteger(depth) || depth < 0 || depth > snapshot.maxDepth ||
+              (nodeId === snapshot.origin.id ? depth !== 0 : depth < 1)) return false;
+          var matchedNodes = cloneNodes.filter(function (candidate) {
+            return candidate.getAttribute('data-node-id') === nodeId;
+          });
+          if (matchedNodes.length !== 1) return false;
+          nodeIds[nodeId] = true;
+          measuredMaxDepth = Math.max(measuredMaxDepth, depth);
+          nodeMatches.push({ elements: matchedNodes, id: nodeId, depth: depth });
+        }
+        if (measuredMaxDepth !== snapshot.maxDepth) return false;
+
+        for (var edgeIndex = 0; edgeIndex < snapshot.edges.length; edgeIndex++) {
+          var edge = snapshot.edges[edgeIndex];
+          if (!edge || typeof edge.key !== 'string' || !edge.key || edgeKeys[edge.key] ||
+              !nodeIds[edge.from] || !nodeIds[edge.to] ||
+              !Number.isInteger(edge.depth) || edge.depth < 1 || edge.depth > snapshot.maxDepth ||
+              edge.depth !== Math.max(snapshot.depths[edge.from], snapshot.depths[edge.to])) return false;
+          var matchedEdges = cloneEdges.filter(function (candidate) {
+            return candidate.getAttribute('data-edge-key') === edge.key;
+          });
+          var drawableMatches = matchedEdges.filter(hasDrawableGeometry);
+          if (!matchedEdges.length || drawableMatches.length !== 1 || !matchedEdges.every(function (candidate) {
+            return candidate.getAttribute('data-edge-from') === edge.from &&
+              candidate.getAttribute('data-edge-to') === edge.to &&
+              (candidate.getAttribute('data-edge-id') || '') === (edge.id || '');
+          })) return false;
+          edgeKeys[edge.key] = true;
+          edgeMatches.push({ elements: matchedEdges, depth: edge.depth });
+        }
+
+        clone.setAttribute('data-share-reach', snapshot.direction);
+        nodeMatches.forEach(function (match) {
+          match.elements.forEach(function (element) {
+            element.setAttribute('data-share-reach-match', '');
+            element.setAttribute('data-share-reach-depth', String(match.depth));
+            if (match.id === snapshot.origin.id) element.setAttribute('data-share-reach-origin', '');
+          });
+        });
+        edgeMatches.forEach(function (match) {
+          match.elements.forEach(function (element) {
+            element.setAttribute('data-share-reach-match', '');
+            element.setAttribute('data-share-reach-depth', String(match.depth));
+          });
+        });
+
+        return clone.getAttribute('data-share-reach') === snapshot.direction &&
+          !clone.hasAttribute('data-animation') &&
+          !clone.hasAttribute('data-reach-active') &&
+          clone.querySelectorAll('[data-animate], [data-reach-match], [data-reach-origin], [data-reach-depth]').length === 0 &&
+          clone.querySelectorAll('[data-share-reach-origin]').length === 1 &&
+          clone.querySelectorAll('[data-share-reach-match]').length ===
+            nodeMatches.reduce(function (count, match) { return count + match.elements.length; }, 0) +
+            edgeMatches.reduce(function (count, match) { return count + match.elements.length; }, 0);
+      }
+
+      function serializeSvg(scale, opts) {
+        // scale: integer multiplier for intrinsic SVG pixel dimensions used by
+        // the raster path. Defaults to 1 (natural size) for SVG download.
+        scale = scale || 1;
+        opts = opts || {};
+        var autoTheme = opts.autoTheme === true;
+        var svg = document.querySelector('.diagram-container svg');
+        var clone = svg.cloneNode(true);
+
+        // View transforms and neighborhood focus are HTML exploration state,
+        // never part of a downloaded full-diagram artifact.
+        clone.style.removeProperty('transform');
+        clone.style.removeProperty('clip-path');
+        clone.removeAttribute('data-view-scale');
+        clone.removeAttribute('data-focus-active');
+        clone.removeAttribute('data-reach-active');
+        clone.removeAttribute('data-lens-active');
+        clone.removeAttribute('data-lens-flow-count');
+        clone.removeAttribute('data-lens-flow-density');
+        clone.removeAttribute('data-legend-preview-active');
+        clone.removeAttribute('data-relationship-preview-active');
+        clone.removeAttribute('data-relationship-direct-active');
+        clone.removeAttribute('data-relationship-pin-active');
+        clone.removeAttribute('data-intent-trace-active');
+        clone.removeAttribute('data-route-picking');
+        clone.removeAttribute('data-route-active');
+        clone.removeAttribute('data-route-journey');
+        clone.removeAttribute('data-share-route');
+        clone.removeAttribute('data-share-reach');
+        clone.removeAttribute('data-story-active');
+        clone.removeAttribute('data-story-playing');
+        clone.removeAttribute('data-story-beat');
+        clone.removeAttribute('data-story-next');
+        clone.removeAttribute('data-story-follow');
+        clone.removeAttribute('data-chapter-handoff');
+        clone.removeAttribute('data-chapter-anchor');
+        clone.removeAttribute('data-chapter-preview');
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-chapter-handoff-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-chapter-role]'), function (el) {
+          el.removeAttribute('data-chapter-role');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-chapter-preview-role]'), function (el) {
+          el.removeAttribute('data-chapter-preview-role');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-story-overlay], [data-story-carrier-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-intent-trace-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-route-probe-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-route-journey-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-semantic-lens-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-legend-bridge-runtime]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-legend-kind]'), function (el) {
+          el.removeAttribute('data-legend-kind');
+          el.removeAttribute('data-legend-label');
+          el.removeAttribute('data-legend-count');
+          el.removeAttribute('data-legend-zero');
+          el.removeAttribute('data-legend-selected');
+          el.removeAttribute('role');
+          el.removeAttribute('tabindex');
+          el.removeAttribute('aria-label');
+          el.removeAttribute('aria-pressed');
+          el.removeAttribute('aria-haspopup');
+          el.removeAttribute('aria-controls');
+          el.removeAttribute('aria-expanded');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-legend-bridge]'), function (el) {
+          el.removeAttribute('data-legend-bridge');
+          el.removeAttribute('role');
+          el.removeAttribute('aria-label');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-relationship-pulse-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-relationship-hit-overlay]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-source-evidence-beacon]'), function (el) {
+          el.remove();
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-source-evidence-count]'), function (el) {
+          var originalLabel = el.getAttribute('data-source-evidence-original-label');
+          if (originalLabel == null || originalLabel === '') el.removeAttribute('aria-label');
+          else el.setAttribute('aria-label', originalLabel);
+          el.removeAttribute('data-source-evidence-count');
+          el.removeAttribute('data-source-evidence-original-label');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-story-step], [data-story-beat-state], [data-story-beat-step]'), function (el) {
+          el.removeAttribute('data-story-step');
+          el.removeAttribute('data-story-beat-state');
+          el.removeAttribute('data-story-beat-step');
+          el.style.removeProperty('--story-step');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-focus-match], [data-focus-selected]'), function (el) {
+          el.removeAttribute('data-focus-match');
+          el.removeAttribute('data-focus-selected');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-reach-match], [data-reach-origin], [data-reach-depth]'), function (el) {
+          el.removeAttribute('data-reach-match');
+          el.removeAttribute('data-reach-origin');
+          el.removeAttribute('data-reach-depth');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-lens-match], [data-lens-selected], [data-lens-peer]'), function (el) {
+          el.removeAttribute('data-lens-match');
+          el.removeAttribute('data-lens-selected');
+          el.removeAttribute('data-lens-peer');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-legend-preview-match], [data-legend-preview-selected], [data-legend-preview-peer]'), function (el) {
+          el.removeAttribute('data-legend-preview-match');
+          el.removeAttribute('data-legend-preview-selected');
+          el.removeAttribute('data-legend-preview-peer');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-relationship-preview], [data-relationship-preview-node], [data-relationship-preview-source], [data-relationship-preview-target]'), function (el) {
+          el.removeAttribute('data-relationship-preview');
+          el.removeAttribute('data-relationship-preview-node');
+          el.removeAttribute('data-relationship-preview-source');
+          el.removeAttribute('data-relationship-preview-target');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-intent-trace-match], [data-intent-trace-selected]'), function (el) {
+          el.removeAttribute('data-intent-trace-match');
+          el.removeAttribute('data-intent-trace-selected');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-route-match], [data-route-start], [data-route-end], [data-route-step], [data-route-candidate], [data-route-journey-state], [data-route-journey-current]'), function (el) {
+          el.removeAttribute('data-route-match');
+          el.removeAttribute('data-route-start');
+          el.removeAttribute('data-route-end');
+          el.removeAttribute('data-route-step');
+          el.removeAttribute('data-route-candidate');
+          el.removeAttribute('data-route-journey-state');
+          el.removeAttribute('data-route-journey-current');
+          el.style.removeProperty('--route-step');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-share-route-match], [data-share-route-step], [data-share-route-start], [data-share-route-end], [data-share-route-middle]'), function (el) {
+          el.removeAttribute('data-share-route-match');
+          el.removeAttribute('data-share-route-step');
+          el.removeAttribute('data-share-route-start');
+          el.removeAttribute('data-share-route-end');
+          el.removeAttribute('data-share-route-middle');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-share-reach-match], [data-share-reach-origin], [data-share-reach-depth]'), function (el) {
+          el.removeAttribute('data-share-reach-match');
+          el.removeAttribute('data-share-reach-origin');
+          el.removeAttribute('data-share-reach-depth');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-detail], [data-detail-anchor]'), function (el) {
+          el.removeAttribute('data-detail');
+          el.removeAttribute('data-detail-anchor');
+        });
+        Array.prototype.forEach.call(clone.querySelectorAll('[data-node-id][aria-pressed]'), function (el) {
+          el.setAttribute('aria-pressed', 'false');
+        });
+        var canonicalStateClean = !clone.hasAttribute('data-view-scale') &&
+          !clone.hasAttribute('data-focus-active') &&
+          !clone.hasAttribute('data-reach-active') &&
+          !clone.hasAttribute('data-lens-active') &&
+          !clone.hasAttribute('data-lens-flow-count') &&
+          !clone.hasAttribute('data-lens-flow-density') &&
+          !clone.hasAttribute('data-legend-preview-active') &&
+          !clone.hasAttribute('data-relationship-preview-active') &&
+          !clone.hasAttribute('data-relationship-direct-active') &&
+          !clone.hasAttribute('data-intent-trace-active') &&
+          !clone.hasAttribute('data-route-picking') &&
+          !clone.hasAttribute('data-route-active') &&
+          !clone.hasAttribute('data-route-journey') &&
+          !clone.hasAttribute('data-share-route') &&
+          !clone.hasAttribute('data-share-reach') &&
+          !clone.hasAttribute('data-story-active') &&
+          !clone.hasAttribute('data-story-playing') &&
+          !clone.hasAttribute('data-story-beat') &&
+          !clone.hasAttribute('data-story-next') &&
+          !clone.hasAttribute('data-story-follow') &&
+          !clone.hasAttribute('data-chapter-handoff') &&
+          !clone.hasAttribute('data-chapter-anchor') &&
+          !clone.hasAttribute('data-chapter-preview') &&
+          !clone.style.getPropertyValue('transform') &&
+          !clone.style.getPropertyValue('clip-path') &&
+          clone.querySelectorAll('[data-story-overlay], [data-story-carrier-overlay], [data-story-carrier-token], [data-story-step], [data-story-beat-state], [data-story-beat-step], [data-chapter-handoff-overlay], [data-chapter-role], [data-chapter-preview-role], [data-focus-match], [data-focus-selected], [data-reach-match], [data-reach-origin], [data-reach-depth], [data-semantic-lens-overlay], [data-lens-match], [data-lens-selected], [data-lens-peer], [data-legend-bridge], [data-legend-kind], [data-legend-bridge-runtime], [data-legend-count], [data-legend-zero], [data-legend-selected], [data-legend-preview-match], [data-legend-preview-selected], [data-legend-preview-peer], [data-relationship-hit-overlay], [data-relationship-pulse-overlay], [data-relationship-preview], [data-relationship-preview-node], [data-relationship-preview-source], [data-relationship-preview-target], [data-intent-trace-overlay], [data-intent-trace-match], [data-intent-trace-selected], [data-route-probe-overlay], [data-route-journey-overlay], [data-route-match], [data-route-start], [data-route-end], [data-route-step], [data-route-candidate], [data-route-journey-state], [data-route-journey-current], [data-share-route-match], [data-share-route-step], [data-share-route-start], [data-share-route-end], [data-share-route-middle], [data-share-reach-match], [data-share-reach-origin], [data-share-reach-depth], [data-source-evidence-beacon], [data-source-evidence-count], [data-source-evidence-original-label], [data-detail], [data-detail-anchor]').length === 0;
+
+        var vb = svg.viewBox.baseVal;
+        var finiteSvgDimensions = Number.isFinite(vb.x) && Number.isFinite(vb.y) &&
+          Number.isFinite(vb.width) && Number.isFinite(vb.height) && vb.width > 0 && vb.height > 0;
+        var routeStateClean = opts.routeSnapshot
+          ? canonicalStateClean && finiteSvgDimensions && applyRouteSnapshot(clone, opts.routeSnapshot)
+          : null;
+        var reachStateClean = opts.reachSnapshot
+          ? canonicalStateClean && finiteSvgDimensions && !opts.routeSnapshot && applyReachSnapshot(clone, opts.reachSnapshot)
+          : null;
+        // Scale width/height so the browser rasterizes the vectors at target
+        // resolution directly. viewBox stays unchanged so coordinates don't
+        // shift. This is the key to sharp rasters — do NOT scale later via
+        // canvas upscaling.
+        clone.setAttribute('width', vb.width * scale);
+        clone.setAttribute('height', vb.height * scale);
+        clone.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
+
+        // Only the SVG-relevant rules: semantic classes, markers, and the
+        // theme variable blocks. Toolbar/cards/print CSS can never apply
+        // inside a standalone SVG and would only bloat the export.
+        var hostStyle = (function () {
+          var out = [];
+          Array.prototype.forEach.call(document.styleSheets, function (sheet) {
+            var rules;
+            try { rules = sheet.cssRules; } catch (_) { return; } // cross-origin
+            if (!rules) return;
+            Array.prototype.forEach.call(rules, function (rule) {
+              if (rule.type === 7 && /^archify-/.test(rule.name || '')) {
+                out.push(rule.cssText);
+                return;
+              }
+              if (rule.type !== 1) return; // plain style rules only
+              var sel = rule.selectorText || '';
+              if (/(^|,)\s*(svg|:root|\[data-theme|\[data-preset|\.c-|\.t-|\.a-|\.m-)/.test(sel)) {
+                out.push(rule.cssText);
+              }
+            });
+          });
+          return out.join('\n');
+        })();
+
+        // Derive the variable list from the stylesheet so newly added theme
+        // variables can never be missed by the export pipeline again
+        // (--lane-fill/--lane-stroke once were).
+        var varNames = (function () {
+          var seen = {};
+          var names = [];
+          (hostStyle.match(/--[a-zA-Z0-9-]+(?=\s*:)/g) || []).forEach(function (n) {
+            if (!seen[n]) { seen[n] = true; names.push(n); }
+          });
+          return names;
+        })();
+
+        // Resolve the full variable set for a given data-theme via an
+        // off-DOM probe, independent of what the viewer is currently set to.
+        function resolveVars(themeAttr) {
+          var probe = document.createElement('div');
+          probe.setAttribute('data-theme', themeAttr);
+          probe.setAttribute('data-preset', document.documentElement.getAttribute('data-preset') || 'classic');
+          probe.style.cssText = 'position:absolute;width:0;height:0;visibility:hidden;';
+          document.body.appendChild(probe);
+          try {
+            var c = getComputedStyle(probe);
+            return varNames.map(function (n) {
+              return n + ': ' + c.getPropertyValue(n).trim() + ';';
+            }).join(' ');
+          } finally {
+            document.body.removeChild(probe);
+          }
+        }
+
+        // Prepend a local()-only @font-face block for each weight so that the
+        // sandboxed image-rendering context used during PNG/JPEG/WebP export
+        // can find JetBrains Mono if the user has it installed locally, and
+        // falls through cleanly to the monospace stack otherwise. The usual
+        // Google-Fonts <link> in the host document is unreachable from the
+        // serialized SVG, so url()-sourced faces would just hang.
+        var fontFallback = [400, 500, 600, 700].map(function (w) {
+          return "@font-face { font-family: 'JetBrains Mono'; font-weight: " + w +
+                 "; src: local('JetBrains Mono'), local('JetBrainsMono-Regular'); }";
+        }).join('\n');
+
+        var style = document.createElementNS('http://www.w3.org/2000/svg', 'style');
+        var bgRect = document.createElementNS('http://www.w3.org/2000/svg', 'rect');
+        bgRect.setAttribute('width', '100%');
+        bgRect.setAttribute('height', '100%');
+
+        if (autoTheme) {
+          // Dual-theme SVG. Dark is the default (so hosts without
+          // prefers-color-scheme still render), light swaps in via media
+          // query, and svg[data-theme="..."] still lets downstream
+          // consumers force a specific theme.
+          var darkVars = resolveVars('dark');
+          var lightVars = resolveVars('light');
+
+          style.textContent =
+            fontFallback + "\n" +
+            "svg { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, 'DejaVu Sans Mono', 'Liberation Mono', 'Noto Sans Mono CJK SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', monospace; }\n" +
+            hostStyle + "\n" +
+            ":root, svg { " + darkVars + " }\n" +
+            "@media (prefers-color-scheme: light) { :root, svg { " + lightVars + " } }\n" +
+            "svg[data-theme=\"light\"] { " + lightVars + " }\n" +
+            "svg[data-theme=\"dark\"] { " + darkVars + " }\n" +
+            "rect.c-bg-rect { fill: var(--bg); }\n";
+
+          // Don't lock the serialized SVG to the viewer's current theme.
+          clone.removeAttribute('data-theme');
+          // Background follows the CSS variable, not a fixed color, so it
+          // swaps with the media query.
+          bgRect.setAttribute('class', 'c-bg-rect');
+        } else {
+          // Raster path: lock to the viewer's current theme.
+          var theme = document.documentElement.getAttribute('data-theme') || 'dark';
+          var themeHost = document.querySelector('[data-theme="' + theme + '"]') || document.documentElement;
+          var computed = getComputedStyle(themeHost);
+          var vars = varNames.map(function (n) {
+            return n + ': ' + computed.getPropertyValue(n).trim() + ';';
+          }).join(' ');
+
+          // IMPORTANT: inject the resolved variables AFTER hostStyle,
+          // otherwise hostStyle's ":root, [data-theme=\"dark\"] { ... }" rule
+          // overrides our chosen theme via later-in-cascade equal-specificity.
+          // Keep this order.
+          style.textContent =
+            fontFallback + "\n" +
+            "svg { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, 'DejaVu Sans Mono', 'Liberation Mono', 'Noto Sans Mono CJK SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', monospace; }\n" +
+            hostStyle + "\n" +
+            ":root, svg { " + vars + " }\n";
+
+          bgRect.setAttribute('fill', computed.getPropertyValue('--bg').trim() || '#ffffff');
+        }
+
+        if (opts.routeSnapshot) {
+          style.textContent += "\nsvg[data-share-route] [data-node-id], svg[data-share-route] [data-edge-from] { opacity: 0.18; }\n" +
+            "svg[data-share-route] [data-share-route-match] { opacity: 1; }\n" +
+            "svg[data-share-route] [data-share-route-start] > :is(rect, circle, polygon):not(.c-mask) { stroke-width: 3; stroke-dasharray: 5 3; }\n" +
+            "svg[data-share-route] [data-share-route-middle] > :is(rect, circle, polygon):not(.c-mask) { stroke-width: 2.2; }\n" +
+            "svg[data-share-route] [data-share-route-end] > :is(rect, circle, polygon):not(.c-mask) { stroke-width: 3.4; stroke-dasharray: 1 0; }\n";
+        }
+        if (opts.reachSnapshot) {
+          style.textContent += "\nsvg[data-share-reach] [data-node-id], svg[data-share-reach] [data-edge-from] { opacity: 0.14; }\n" +
+            "svg[data-share-reach] [data-share-reach-match] { opacity: 1; }\n" +
+            "svg[data-share-reach] [data-edge-from][data-share-reach-match] { stroke-width: 1.55; }\n" +
+            "svg[data-share-reach=\"upstream\"] [data-share-reach-origin] > :is(rect, circle, polygon):not(.c-mask) { stroke: var(--database-stroke); stroke-width: 3.4; stroke-dasharray: 5 3; }\n" +
+            "svg[data-share-reach=\"downstream\"] [data-share-reach-origin] > :is(rect, circle, polygon):not(.c-mask) { stroke: var(--backend-stroke); stroke-width: 3.4; stroke-dasharray: 1 0; }\n" +
+            "svg[data-preset=\"blueprint\"][data-share-reach] [data-share-reach-origin], svg[data-preset=\"blueprint\"][data-share-reach] [data-edge-from][data-share-reach-match] { filter: none; }\n";
+        }
+
+        clone.insertBefore(style, clone.firstChild);
+        clone.insertBefore(bgRect, style.nextSibling);
+
+        return {
+          svgString: new XMLSerializer().serializeToString(clone),
+          width: vb.width * scale,
+          height: vb.height * scale,
+          canonicalStateClean: canonicalStateClean,
+          routeStateClean: routeStateClean,
+          reachStateClean: reachStateClean
+        };
+      }
+
+      function download(blob, filename) {
+        var url = URL.createObjectURL(blob);
+        var a = document.createElement('a');
+        a.href = url;
+        a.download = filename;
+        document.body.appendChild(a);
+        a.click();
+        a.remove();
+        setTimeout(function () { URL.revokeObjectURL(url); }, 1000);
+      }
+
+      // Conservative upper bound on total canvas pixels. Older Safari on iOS
+      // silently produces a blank canvas above ~16 Mpx; Chrome / Firefox /
+      // desktop Safari are far higher but start failing on memory-constrained
+      // devices. We pick the largest integer scale in {4,3,2,1} whose target
+      // pixel count fits under this cap.
+      var MAX_CANVAS_PIXELS = 16 * 1024 * 1024;
+
+      function pickSafeScale(vbW, vbH) {
+        for (var s = RASTER_SCALE; s >= 1; s--) {
+          if (vbW * s * vbH * s <= MAX_CANVAS_PIXELS) return s;
+        }
+        return 1;
+      }
+
+      function rasterize(format) {
+        // Serialize at a safe scale (RASTER_SCALE=4 by default, reduced if the
+        // resulting canvas would exceed MAX_CANVAS_PIXELS). The SVG itself is
+        // rasterized at target resolution natively; drawImage draws at natural
+        // size — no upsampling blur.
+        var svg = document.querySelector('.diagram-container svg');
+        var vb = svg.viewBox.baseVal;
+        var scale = pickSafeScale(vb.width, vb.height);
+        var data = serializeSvg(scale);
+        var svgBlob = new Blob([data.svgString], { type: 'image/svg+xml;charset=utf-8' });
+        var svgUrl = URL.createObjectURL(svgBlob);
+
+        return new Promise(function (resolve, reject) {
+          var img = new Image();
+          img.onload = function () {
+            try {
+              var canvas = document.createElement('canvas');
+              canvas.width = data.width;
+              canvas.height = data.height;
+              var ctx = canvas2dOrThrow(canvas, format);
+              if (format === 'jpeg') {
+                ctx.fillStyle = currentBg();
+                ctx.fillRect(0, 0, canvas.width, canvas.height);
+              }
+              // Draw at natural size — SVG was already rasterized at target res.
+              ctx.drawImage(img, 0, 0);
+              URL.revokeObjectURL(svgUrl);
+              var mime = format === 'jpeg' ? 'image/jpeg' :
+                         format === 'webp' ? 'image/webp' : 'image/png';
+              var quality = format === 'png' ? undefined : 0.95;
+              canvas.toBlob(function (blob) {
+                if (!blob) reject(exportError('viewer.export.error.toBlobNull', { label: format }));
+                else resolve(blob);
+              }, mime, quality);
+            } catch (error) {
+              URL.revokeObjectURL(svgUrl);
+              reject(error);
+            }
+          };
+          img.onerror = function (e) {
+            URL.revokeObjectURL(svgUrl);
+            reject(e);
+          };
+          img.src = svgUrl;
+        });
+      }
+
+      function fitCanvasText(ctx, text, maxWidth, startSize, minSize, weight) {
+        var value = String(text || '').trim();
+        var size = startSize;
+        var family = "'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace";
+        while (size > minSize) {
+          ctx.font = (weight || '600') + ' ' + size + 'px ' + family;
+          if (ctx.measureText(value).width <= maxWidth) return value;
+          size -= 1;
+        }
+        ctx.font = (weight || '600') + ' ' + minSize + 'px ' + family;
+        if (ctx.measureText(value).width <= maxWidth) return value;
+        var suffix = '\u2026';
+        while (value.length > 1 && ctx.measureText(value + suffix).width > maxWidth) {
+          value = value.slice(0, -1);
+        }
+        return value + suffix;
+      }
+
+      function canvas2dOrThrow(canvas, label) {
+        if (!canvas || typeof canvas.getContext !== 'function') {
+          throw exportError('viewer.export.error.canvasUnavailable', { label: label });
+        }
+        var ctx = canvas.getContext('2d');
+        if (!ctx) throw exportError('viewer.export.error.contextUnavailable', { label: label });
+        if (typeof canvas.toBlob !== 'function') throw exportError('viewer.export.error.toBlobUnavailable', { label: label });
+        return ctx;
+      }
+
+      function renderShareCard(options) {
+        options = options || {};
+        var routeSnapshot = options.routeSnapshot || null;
+        var reachSnapshot = options.reachSnapshot || null;
+        if (routeSnapshot && reachSnapshot) return Promise.reject(exportError('viewer.export.error.variantsCombined'));
+        var svg = document.querySelector('.diagram-container svg');
+        var vb = svg.viewBox.baseVal;
+        var sourceScale = Math.min(2, pickSafeScale(vb.width, vb.height));
+        var data = serializeSvg(sourceScale, { routeSnapshot: routeSnapshot, reachSnapshot: reachSnapshot });
+        if (!data.canonicalStateClean) return Promise.reject(exportError('viewer.export.error.viewerState'));
+        if (routeSnapshot && !data.routeStateClean) return Promise.reject(exportError('viewer.export.error.routeState'));
+        if (reachSnapshot && !data.reachStateClean) return Promise.reject(exportError('viewer.export.error.reachState'));
+        var svgBlob = new Blob([data.svgString], { type: 'image/svg+xml;charset=utf-8' });
+        var svgUrl = URL.createObjectURL(svgBlob);
+
+        return new Promise(function (resolve, reject) {
+          var img = new Image();
+          img.onload = function () {
+            try {
+              var canvas = document.createElement('canvas');
+              canvas.width = SHARE_CARD_WIDTH;
+              canvas.height = SHARE_CARD_HEIGHT;
+              var ctx = canvas2dOrThrow(canvas, viewerText('viewer.export.shareCard'));
+              var computed = getComputedStyle(document.documentElement);
+              var bg = computed.getPropertyValue('--bg').trim() || currentBg();
+              var text = computed.getPropertyValue('--text').trim() || '#ffffff';
+              var muted = computed.getPropertyValue('--text-muted').trim() || '#94a3b8';
+              var border = computed.getPropertyValue('--panel-border').trim() || '#334155';
+              var accentProperty = reachSnapshot
+                ? (reachSnapshot.direction === 'upstream' ? '--database-stroke' : '--backend-stroke')
+                : '--frontend-stroke';
+              var accent = computed.getPropertyValue(accentProperty).trim() || '#22d3ee';
+              var titleNode = document.querySelector('.header h1');
+              var subtitleNode = document.querySelector('.header .subtitle');
+              var title = titleNode ? titleNode.textContent : document.title;
+              var directionLabel = reachSnapshot
+                ? viewerText('viewer.export.direction.' + reachSnapshot.direction)
+                : '';
+              var subtitle = routeSnapshot
+                ? viewerCount('viewer.export.card.routeSummary', routeSnapshot.hops, {
+                    source: routeSnapshot.source.label,
+                    target: routeSnapshot.target.label
+                  })
+                : reachSnapshot
+                  ? viewerText('viewer.export.card.reachSummary', {
+                      direction: directionLabel,
+                      origin: reachSnapshot.origin.label,
+                      nodes: viewerCount('viewer.export.card.node', reachSnapshot.nodeIds.length - 1),
+                      links: viewerCount('viewer.export.card.link', reachSnapshot.edges.length),
+                      hops: viewerCount('viewer.export.card.hop', reachSnapshot.maxDepth)
+                    })
+                  : subtitleNode ? subtitleNode.textContent : '';
+              var preset = document.documentElement.getAttribute('data-preset') || 'classic';
+              var theme = document.documentElement.getAttribute('data-theme') || 'dark';
+              var presetKey = preset === 'signal-flow'
+                ? 'viewer.preset.flow.short'
+                : 'viewer.preset.' + preset;
+              var presetLabel = viewerText(presetKey).toUpperCase();
+              var themeLabel = viewerText('viewer.theme.' + theme).toUpperCase();
+              var cardLabel = routeSnapshot
+                ? viewerText('viewer.export.card.routeBadge', {
+                    hops: viewerCount('viewer.export.card.hop', routeSnapshot.hops).toUpperCase()
+                  })
+                : reachSnapshot
+                  ? viewerText('viewer.export.card.reachBadge', { direction: directionLabel.toUpperCase() })
+                  : viewerText('viewer.export.card.defaultBadge', { preset: presetLabel, theme: themeLabel });
+
+              ctx.fillStyle = bg;
+              ctx.fillRect(0, 0, SHARE_CARD_WIDTH, SHARE_CARD_HEIGHT);
+
+              ctx.fillStyle = accent;
+              ctx.fillRect(SHARE_CARD_PADDING, 27, 42, 3);
+
+              ctx.textBaseline = 'alphabetic';
+              ctx.fillStyle = text;
+              var fittedTitle = fitCanvasText(ctx, title, SHARE_CARD_WIDTH - SHARE_CARD_PADDING * 2 - 330, 29, 18, '700');
+              ctx.fillText(fittedTitle, SHARE_CARD_PADDING, 62);
+
+              ctx.fillStyle = muted;
+              var fittedSubtitle = fitCanvasText(ctx, subtitle, SHARE_CARD_WIDTH - SHARE_CARD_PADDING * 2 - 280, 13, 11, '500');
+              ctx.fillText(fittedSubtitle, SHARE_CARD_PADDING, 87);
+
+              ctx.font = "600 12px 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace";
+              ctx.textAlign = 'right';
+              ctx.fillStyle = accent;
+              ctx.fillText(cardLabel, SHARE_CARD_WIDTH - SHARE_CARD_PADDING, 50);
+              ctx.textAlign = 'left';
+
+              var availableWidth = SHARE_CARD_WIDTH - SHARE_CARD_PADDING * 2;
+              var availableHeight = SHARE_CARD_HEIGHT - SHARE_CARD_HEADER - SHARE_CARD_PADDING;
+              var fit = Math.min(availableWidth / data.width, availableHeight / data.height);
+              var drawWidth = data.width * fit;
+              var drawHeight = data.height * fit;
+              var drawX = SHARE_CARD_PADDING + (availableWidth - drawWidth) / 2;
+              var drawY = SHARE_CARD_HEADER + (availableHeight - drawHeight) / 2;
+
+              ctx.strokeStyle = border;
+              ctx.lineWidth = 1;
+              ctx.strokeRect(drawX - 0.5, drawY - 0.5, drawWidth + 1, drawHeight + 1);
+              ctx.drawImage(img, drawX, drawY, drawWidth, drawHeight);
+              URL.revokeObjectURL(svgUrl);
+
+              canvas.toBlob(function (blob) {
+                if (!blob) reject(exportError('viewer.export.error.toBlobNull', { label: viewerText('viewer.export.shareCard') }));
+                else resolve(blob);
+              }, 'image/png');
+            } catch (error) {
+              URL.revokeObjectURL(svgUrl);
+              reject(error);
+            }
+          };
+          img.onerror = function (e) {
+            URL.revokeObjectURL(svgUrl);
+            reject(e);
+          };
+          img.src = svgUrl;
+        });
+      }
+
+      function rasterizeShareCard(options) {
+        options = options || {};
+        if (!options.variant) return renderShareCard();
+        if (options.variant !== 'route' && options.variant !== 'reach') {
+          return Promise.reject(exportError('viewer.export.unknownVariant', { variant: options.variant }));
+        }
+        if (options.variant === 'route') {
+          var routeSnapshot = Archify.routeProbe && Archify.routeProbe.exportSnapshot();
+          if (!routeSnapshot) return Promise.reject(exportError('viewer.export.routeRequired'));
+          return renderShareCard({ routeSnapshot: routeSnapshot });
+        }
+        var snapshot = Archify.focus && typeof Archify.focus.reachabilitySnapshot === 'function'
+          ? Archify.focus.reachabilitySnapshot()
+          : null;
+        if (!snapshot) return Promise.reject(exportError('viewer.export.reachRequired'));
+        return renderShareCard({ reachSnapshot: snapshot });
+      }
+
+      function motionMimeType() {
+        if (typeof MediaRecorder === 'undefined') return '';
+        var candidates = [
+          'video/webm;codecs=vp9',
+          'video/webm;codecs=vp8',
+          'video/webm'
+        ];
+        for (var i = 0; i < candidates.length; i++) {
+          if (!MediaRecorder.isTypeSupported || MediaRecorder.isTypeSupported(candidates[i])) return candidates[i];
+        }
+        return '';
+      }
+
+      function canRecordMotion() {
+        var svg = document.querySelector('.diagram-container svg');
+        return !!(svg && svg.getAttribute('data-animation') === 'trace' &&
+          typeof MediaRecorder !== 'undefined' && motionMimeType() &&
+          typeof HTMLCanvasElement !== 'undefined' &&
+          typeof HTMLCanvasElement.prototype.captureStream === 'function');
+      }
+
+      // Record the live CSS animation without Puppeteer, ffmpeg, or a network
+      // dependency. SVG files loaded through Image are commonly rasterized as
+      // one cached bitmap, so repeatedly drawing that Image does not reliably
+      // advance its CSS animation. Keep one crisp static SVG background, then
+      // render an explicit time-varying signal scene over the real authored
+      // relationship geometry on every captured canvas frame.
+      function recordWebm(options) {
+        options = options || {};
+        if (!canRecordMotion()) {
+          return Promise.reject(exportError('viewer.export.error.webmRequirements'));
+        }
+        var duration = Math.max(250, Number(options.duration) || MOTION_DURATION);
+        var fps = Math.max(1, Number(options.fps) || MOTION_FPS);
+        var svg = document.querySelector('.diagram-container svg');
+        var vb = svg.viewBox.baseVal;
+        var scale = Math.min(1, 1280 / vb.width);
+        var data = serializeSvg(scale);
+        var sourceUrl = URL.createObjectURL(new Blob([data.svgString], { type: 'image/svg+xml;charset=utf-8' }));
+
+        function createMotionScene(root) {
+          var rootMatrix = root.getCTM ? root.getCTM() : null;
+
+          function pointInRoot(element, point) {
+            if (!rootMatrix || !element.getCTM || !point.matrixTransform) return { x: point.x, y: point.y };
+            try {
+              var elementMatrix = element.getCTM();
+              if (!elementMatrix) return { x: point.x, y: point.y };
+              var mapped = point.matrixTransform(rootMatrix.inverse().multiply(elementMatrix));
+              return { x: mapped.x, y: mapped.y };
+            } catch (_) {
+              return { x: point.x, y: point.y };
+            }
+          }
+
+          function samplesFor(element) {
+            if (typeof element.getTotalLength !== 'function' || typeof element.getPointAtLength !== 'function') return [];
+            var length;
+            try { length = element.getTotalLength(); } catch (_) { return []; }
+            if (!Number.isFinite(length) || length <= 0) return [];
+            var count = Math.max(12, Math.min(72, Math.ceil(length / 12)));
+            var points = [];
+            for (var i = 0; i <= count; i++) {
+              points.push(pointInRoot(element, element.getPointAtLength(length * i / count)));
+            }
+            return points;
+          }
+
+          function authoredStep(element, fallback) {
+            var raw = element.style.getPropertyValue('--step') || getComputedStyle(element).getPropertyValue('--step');
+            var value = Number(raw);
+            return Number.isFinite(value) ? value : fallback;
+          }
+
+          var edges = Array.prototype.slice.call(root.querySelectorAll('[data-animate="edge"]')).map(function (element, index) {
+            var computed = getComputedStyle(element);
+            return {
+              points: samplesFor(element),
+              color: computed.stroke && computed.stroke !== 'none' ? computed.stroke : '#22d3ee',
+              width: Math.max(1.5, parseFloat(computed.strokeWidth) || 1.5),
+              delay: Math.min(12, authoredStep(element, index)) * 0.16
+            };
+          }).filter(function (edge) { return edge.points.length > 1; });
+
+          var nodes = Array.prototype.slice.call(root.querySelectorAll('[data-node-id][data-animate="node"]')).map(function (element, index) {
+            var box;
+            try { box = element.getBBox(); } catch (_) { return null; }
+            var painted = element.querySelector('[class*="c-"]') || element;
+            var computed = getComputedStyle(painted);
+            return {
+              x: box.x,
+              y: box.y,
+              width: box.width,
+              height: box.height,
+              color: computed.stroke && computed.stroke !== 'none' ? computed.stroke : '#22d3ee',
+              delay: Math.min(12, authoredStep(element, index)) * 0.16
+            };
+          }).filter(Boolean);
+
+          return { edges: edges, nodes: nodes, x: vb.x, y: vb.y, width: vb.width, height: vb.height };
+        }
+
+        function pointAlong(points, progress) {
+          var scaled = Math.max(0, Math.min(1, progress)) * (points.length - 1);
+          var index = Math.min(points.length - 2, Math.floor(scaled));
+          var mix = scaled - index;
+          return {
+            x: points[index].x + (points[index + 1].x - points[index].x) * mix,
+            y: points[index].y + (points[index + 1].y - points[index].y) * mix
+          };
+        }
+
+        function roundedRectPath(ctx, x, y, width, height, radius) {
+          var r = Math.max(0, Math.min(radius, width / 2, height / 2));
+          ctx.beginPath();
+          ctx.moveTo(x + r, y);
+          ctx.lineTo(x + width - r, y);
+          ctx.quadraticCurveTo(x + width, y, x + width, y + r);
+          ctx.lineTo(x + width, y + height - r);
+          ctx.quadraticCurveTo(x + width, y + height, x + width - r, y + height);
+          ctx.lineTo(x + r, y + height);
+          ctx.quadraticCurveTo(x, y + height, x, y + height - r);
+          ctx.lineTo(x, y + r);
+          ctx.quadraticCurveTo(x, y, x + r, y);
+          ctx.closePath();
+        }
+
+        function drawMotionFrame(ctx, backgroundImage, motionScene, elapsed) {
+          ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
+          ctx.drawImage(backgroundImage, 0, 0, ctx.canvas.width, ctx.canvas.height);
+          ctx.save();
+          ctx.scale(ctx.canvas.width / motionScene.width, ctx.canvas.height / motionScene.height);
+          ctx.translate(-motionScene.x, -motionScene.y);
+
+          motionScene.edges.forEach(function (edge) {
+            var duration = 1.75;
+            var progress = (elapsed - edge.delay) / duration;
+            if (progress < 0 || progress > 1) return;
+            var head = Math.max(0, Math.min(1, progress));
+            var tail = Math.max(0, head - 0.24);
+            var opacity = Math.sin(Math.PI * Math.min(1, progress));
+
+            ctx.save();
+            ctx.strokeStyle = edge.color;
+            ctx.fillStyle = edge.color;
+            ctx.lineCap = 'round';
+            ctx.lineJoin = 'round';
+            ctx.lineWidth = Math.max(3.2, edge.width * 2.2);
+            ctx.globalAlpha = 0.42 + opacity * 0.5;
+            ctx.shadowColor = edge.color;
+            ctx.shadowBlur = 10;
+            ctx.beginPath();
+            for (var i = 0; i <= 14; i++) {
+              var trailPoint = pointAlong(edge.points, tail + (head - tail) * i / 14);
+              if (i === 0) ctx.moveTo(trailPoint.x, trailPoint.y);
+              else ctx.lineTo(trailPoint.x, trailPoint.y);
+            }
+            ctx.stroke();
+
+            var point = pointAlong(edge.points, head);
+            ctx.globalAlpha = 0.95;
+            ctx.beginPath();
+            ctx.arc(point.x, point.y, 4.8, 0, Math.PI * 2);
+            ctx.fill();
+            ctx.restore();
+          });
+
+          motionScene.nodes.forEach(function (node) {
+            var progress = (elapsed - node.delay) / 2.6;
+            if (progress < 0 || progress > 1) return;
+            var pulse = Math.sin(Math.PI * progress);
+            if (pulse <= 0.02) return;
+            ctx.save();
+            ctx.strokeStyle = node.color;
+            ctx.lineWidth = 1.4 + pulse * 1.8;
+            ctx.globalAlpha = pulse * 0.5;
+            ctx.shadowColor = node.color;
+            ctx.shadowBlur = 12 * pulse;
+            var inset = 2 + pulse * 3;
+            roundedRectPath(ctx, node.x - inset, node.y - inset, node.width + inset * 2, node.height + inset * 2, 8);
+            ctx.stroke();
+            ctx.restore();
+          });
+
+          ctx.restore();
+        }
+
+        var motionScene = createMotionScene(svg);
+
+        return new Promise(function (resolve, reject) {
+          var backgroundImage = new Image();
+          backgroundImage.onload = function () {
+            var canvas = document.createElement('canvas');
+            canvas.width = Math.max(2, Math.round(data.width / 2) * 2);
+            canvas.height = Math.max(2, Math.round(data.height / 2) * 2);
+            var ctx = canvas.getContext('2d');
+            var stream = canvas.captureStream(fps);
+            var mime = motionMimeType();
+            var recorder;
+            try {
+              recorder = new MediaRecorder(stream, { mimeType: mime, videoBitsPerSecond: 6000000 });
+            } catch (err) {
+              URL.revokeObjectURL(sourceUrl);
+              stream.getTracks().forEach(function (track) { track.stop(); });
+              reject(err);
+              return;
+            }
+            var chunks = [];
+            var raf = 0;
+            var stopped = false;
+            var startedAt = performance.now();
+            function cleanup() {
+              if (stopped) return;
+              stopped = true;
+              cancelAnimationFrame(raf);
+              URL.revokeObjectURL(sourceUrl);
+              stream.getTracks().forEach(function (track) { track.stop(); });
+            }
+            function draw(now) {
+              var elapsed = Math.max(0, ((Number(now) || performance.now()) - startedAt) / 1000);
+              drawMotionFrame(ctx, backgroundImage, motionScene, elapsed);
+              raf = requestAnimationFrame(draw);
+            }
+            recorder.ondataavailable = function (event) {
+              if (event.data && event.data.size) chunks.push(event.data);
+            };
+            recorder.onerror = function (event) {
+              cleanup();
+              reject(event.error || exportError('viewer.export.error.mediaRecorder'));
+            };
+            recorder.onstop = function () {
+              cleanup();
+              var blob = new Blob(chunks, { type: recorder.mimeType || mime });
+              if (!blob.size) reject(exportError('viewer.export.error.emptyWebm'));
+              else resolve(blob);
+            };
+            drawMotionFrame(ctx, backgroundImage, motionScene, 0);
+            recorder.start(250);
+            startedAt = performance.now();
+            raf = requestAnimationFrame(draw);
+            setTimeout(function () {
+              if (recorder.state === 'inactive') return;
+              // Chromium normally emits the final chunk during stop(), but
+              // some embedded browser shells need an explicit encoder flush
+              // first. Keep the short grace window bounded and harmless for
+              // browsers that already delivered timeslice chunks.
+              try { recorder.requestData(); } catch (_) {}
+              setTimeout(function () {
+                if (recorder.state !== 'inactive') recorder.stop();
+              }, 120);
+            }, duration);
+          };
+          backgroundImage.onerror = function () {
+            URL.revokeObjectURL(sourceUrl);
+            reject(exportError('viewer.export.error.webmBackground'));
+          };
+          backgroundImage.src = sourceUrl;
+        });
+      }
+
+      var menu = document.getElementById('export-menu');
+      var btn = document.getElementById('btn-export');
+      var routeShareItem = menu.querySelector('button[data-action="route-share-card"]');
+      var reachShareItem = menu.querySelector('button[data-action="reach-share-card"]');
+      var items = function () {
+        return Array.prototype.slice.call(menu.querySelectorAll('button[role="menuitem"]'));
+      };
+
+      function syncRouteShareItem() {
+        var snapshot = Archify.routeProbe && typeof Archify.routeProbe.exportSnapshot === 'function'
+          ? Archify.routeProbe.exportSnapshot()
+          : null;
+        routeShareItem.hidden = !snapshot;
+        routeShareItem.disabled = !snapshot;
+        return snapshot;
+      }
+
+      function syncReachShareItem() {
+        var snapshot = Archify.focus && typeof Archify.focus.reachabilitySnapshot === 'function'
+          ? Archify.focus.reachabilitySnapshot()
+          : null;
+        reachShareItem.hidden = !snapshot;
+        reachShareItem.disabled = !snapshot;
+        return snapshot;
+      }
+
+      // ---- Clipboard support ----------------------------------------------
+      function canCopyImage() {
+        return typeof ClipboardItem !== 'undefined' &&
+               navigator.clipboard &&
+               typeof navigator.clipboard.write === 'function';
+      }
+
+      // ---- Raster format detection ----------------------------------------
+      // canvas.toBlob('image/webp') silently returns a PNG on browsers without
+      // WebP encoding (older Safari), so detect explicitly.
+      function supports(format) {
+        if (format === 'share-card') return true;
+        if (format === 'svg' || format === 'png') return true;
+        if (format === 'webm') return canRecordMotion();
+        var mime = format === 'jpeg' ? 'image/jpeg' : 'image/webp';
+        try {
+          var c = document.createElement('canvas');
+          c.width = c.height = 2;
+          return c.toDataURL(mime).indexOf('data:' + mime) === 0;
+        } catch (_) { return false; }
+      }
+
+      // Gray out unsupported items.
+      items().forEach(function (it) {
+        if (it.dataset.format && !supports(it.dataset.format)) {
+          it.disabled = true;
+          it.title = viewerText('viewer.export.unsupported');
+        }
+        if ((it.dataset.action === 'copy' || it.dataset.action === 'copy-share-card') && !canCopyImage()) {
+          it.disabled = true;
+          it.title = viewerText('viewer.export.clipboardUnsupported');
+        }
+      });
+
+      // ---- Toast ----------------------------------------------------------
+      // A live region only announces CHANGES to an existing node, so the toast
+      // element is created once up front and updated in place.
+      var toastEl = document.createElement('div');
+      toastEl.className = 'archify-toast';
+      toastEl.setAttribute('role', 'status');
+      document.body.appendChild(toastEl);
+      var toastTimer = null;
+
+      function toast(msg) {
+        toastEl.textContent = '';
+        requestAnimationFrame(function () {
+          toastEl.textContent = msg;
+          toastEl.classList.add('show');
+        });
+        clearTimeout(toastTimer);
+        toastTimer = setTimeout(function () { toastEl.classList.remove('show'); }, 1500);
+      }
+
+      function open(focusLast) {
+        if (Archify.preset && Archify.preset.isOpen()) Archify.preset.close(false);
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (Archify.semanticLens && Archify.semanticLens.isOpen()) Archify.semanticLens.close({ restoreFocus: false });
+        syncRouteShareItem();
+        syncReachShareItem();
+        menu.classList.add('open');
+        btn.setAttribute('aria-expanded', 'true');
+        var available = items().filter(function (i) { return !i.hidden && !i.disabled; });
+        var target = focusLast ? available[available.length - 1] : available[0];
+        if (target) target.focus();
+      }
+      function close(focusTrigger) {
+        menu.classList.remove('open');
+        btn.setAttribute('aria-expanded', 'false');
+        if (focusTrigger) btn.focus();
+      }
+      function isOpen() { return menu.classList.contains('open'); }
+
+      btn.addEventListener('click', function (e) {
+        e.stopPropagation();
+        if (isOpen()) close(false);
+        else open();
+      });
+      // APG menu-button pattern: ArrowDown/ArrowUp on the trigger opens the menu.
+      btn.addEventListener('keydown', function (e) {
+        if (e.key === 'ArrowDown' || e.key === 'ArrowUp') {
+          e.preventDefault();
+          if (!isOpen()) open(e.key === 'ArrowUp');
+        }
+      });
+      document.addEventListener('click', function (e) {
+        if (!menu.contains(e.target) && e.target !== btn) close(false);
+      });
+
+      // Keyboard navigation inside the menu.
+      //   Menu items: Up/Down, Home/End.
+      //   Esc closes + returns focus to trigger; Tab closes.
+      menu.addEventListener('keydown', function (e) {
+        if (e.key === 'Escape') { e.preventDefault(); close(true); return; }
+        if (e.key === 'Tab')    { close(false); return; }
+
+        var available = items().filter(function (i) { return !i.hidden && !i.disabled; });
+        var current = available.indexOf(document.activeElement);
+        switch (e.key) {
+          case 'ArrowDown':
+            e.preventDefault();
+            if (available.length) available[(current + 1 + available.length) % available.length].focus();
+            break;
+          case 'ArrowUp':
+            e.preventDefault();
+            if (available.length) available[(current - 1 + available.length) % available.length].focus();
+            break;
+          case 'Home':
+            e.preventDefault();
+            if (available[0]) available[0].focus();
+            break;
+          case 'End':
+            e.preventDefault();
+            if (available.length) available[available.length - 1].focus();
+            break;
+        }
+      });
+
+      function runExport(format) {
+        var base = diagramFilename();
+        close(true);
+        clearExportReceipt();
+        if (format === 'webm') toast(viewerText('viewer.export.recording'));
+        return (format === 'share-card'
+          ? rasterizeShareCard().then(function (blob) {
+              recordExportReceipt('share-card', blob, true, { width: SHARE_CARD_WIDTH, height: SHARE_CARD_HEIGHT });
+              download(blob, base + '-share-card.png');
+              toast(viewerText('viewer.export.downloadedShare'));
+            })
+          : format === 'svg'
+          ? Promise.resolve(serializeSvg(1, { autoTheme: true })).then(function (d) {
+              var blob = new Blob([d.svgString], { type: 'image/svg+xml;charset=utf-8' });
+              recordExportReceipt('svg', blob, d.canonicalStateClean);
+              download(blob, base + '.svg');
+            })
+          : format === 'webm'
+            ? recordWebm().then(function (blob) {
+                document.documentElement.setAttribute('data-last-motion-bytes', String(blob.size));
+                recordExportReceipt('webm', blob, true);
+                download(blob, base + '.webm');
+                toast(viewerText('viewer.export.downloadedWebm'));
+              })
+          : rasterize(format).then(function (blob) {
+              recordExportReceipt(format, blob, true);
+              download(blob, base + '.' + format);
+            })
+        ).catch(function (err) {
+          console.error(err);
+          var technicalMessage = err && err.message ? err.message : format;
+          var message = exportMessage(err);
+          document.documentElement.setAttribute('data-last-export-error-format', format);
+          document.documentElement.setAttribute('data-last-export-error', technicalMessage);
+          if (format === 'webm') {
+            var motionItem = menu.querySelector('button[data-format="webm"]');
+            if (motionItem) {
+              motionItem.disabled = true;
+              motionItem.title = viewerText('viewer.export.motionUnavailable');
+              motionItem.style.opacity = '0.5';
+            }
+            toast(viewerText('viewer.export.webmUnavailable'));
+            return;
+          }
+          alert(viewerText('viewer.export.failed', { message: message }));
+        });
+      }
+
+      function runRouteShareCard() {
+        close(false);
+        clearExportReceipt();
+        var snapshot = Archify.routeProbe && Archify.routeProbe.exportSnapshot();
+        var blobPromise = snapshot
+          ? renderShareCard({ routeSnapshot: snapshot })
+          : Promise.reject(exportError('viewer.export.routeRequired'));
+        return blobPromise.then(function (blob) {
+          recordExportReceipt('share-card', blob, false, { width: SHARE_CARD_WIDTH, height: SHARE_CARD_HEIGHT }, 'route', true);
+          download(blob, diagramFilename() + '-route-share-card.png');
+          toast(viewerText('viewer.export.downloadedRoute'));
+          return blob;
+        }).catch(function (err) {
+          console.error(err);
+          var technicalMessage = err && err.message ? err.message : 'share-card';
+          var message = exportMessage(err);
+          document.documentElement.setAttribute('data-last-export-error-format', 'share-card');
+          document.documentElement.setAttribute('data-last-export-error', technicalMessage);
+          alert(viewerText('viewer.export.routeFailed', { message: message }));
+        });
+      }
+
+      function runReachShareCard() {
+        close(false);
+        clearExportReceipt();
+        var snapshot = Archify.focus && typeof Archify.focus.reachabilitySnapshot === 'function'
+          ? Archify.focus.reachabilitySnapshot()
+          : null;
+        var blobPromise = snapshot
+          ? renderShareCard({ reachSnapshot: snapshot })
+          : Promise.reject(exportError('viewer.export.reachRequired'));
+        return blobPromise.then(function (blob) {
+          recordExportReceipt('share-card', blob, false, { width: SHARE_CARD_WIDTH, height: SHARE_CARD_HEIGHT }, 'reach', false, true);
+          download(blob, diagramFilename() + '-' + snapshot.direction + '-reach-share-card.png');
+          toast(viewerText('viewer.export.downloadedReach'));
+          return blob;
+        }).catch(function (err) {
+          console.error(err);
+          var technicalMessage = err && err.message ? err.message : 'share-card';
+          var message = exportMessage(err);
+          document.documentElement.setAttribute('data-last-export-error-format', 'share-card');
+          document.documentElement.setAttribute('data-last-export-error', technicalMessage);
+          alert(viewerText('viewer.export.reachFailed', { message: message }));
+        });
+      }
+
+      // A compact, machine-readable receipt for local QA and generated proof
+      // galleries. It exposes no diagram contents, only the completed format,
+      // byte count, and whether temporary viewer state was excluded.
+      function recordExportReceipt(format, blob, canonical, dimensions, variant, routeStateClean, reachStateClean) {
+        document.documentElement.setAttribute('data-last-export-format', format);
+        document.documentElement.setAttribute('data-last-export-bytes', String(blob.size));
+        document.documentElement.setAttribute('data-last-export-canonical', canonical ? 'true' : 'false');
+        if (variant) {
+          document.documentElement.setAttribute('data-last-export-variant', variant);
+        } else {
+          document.documentElement.removeAttribute('data-last-export-variant');
+        }
+        if (routeStateClean === true) {
+          document.documentElement.setAttribute('data-last-export-route-state-clean', 'true');
+        } else {
+          document.documentElement.removeAttribute('data-last-export-route-state-clean');
+        }
+        if (reachStateClean === true) {
+          document.documentElement.setAttribute('data-last-export-reach-state-clean', 'true');
+        } else {
+          document.documentElement.removeAttribute('data-last-export-reach-state-clean');
+        }
+        if (dimensions) {
+          document.documentElement.setAttribute('data-last-export-width', String(dimensions.width));
+          document.documentElement.setAttribute('data-last-export-height', String(dimensions.height));
+        } else {
+          document.documentElement.removeAttribute('data-last-export-width');
+          document.documentElement.removeAttribute('data-last-export-height');
+        }
+      }
+
+      function clearExportReceipt() {
+        document.documentElement.removeAttribute('data-last-export-format');
+        document.documentElement.removeAttribute('data-last-export-bytes');
+        document.documentElement.removeAttribute('data-last-export-canonical');
+        document.documentElement.removeAttribute('data-last-export-width');
+        document.documentElement.removeAttribute('data-last-export-height');
+        document.documentElement.removeAttribute('data-last-export-variant');
+        document.documentElement.removeAttribute('data-last-export-route-state-clean');
+        document.documentElement.removeAttribute('data-last-export-reach-state-clean');
+        document.documentElement.removeAttribute('data-last-export-error-format');
+        document.documentElement.removeAttribute('data-last-export-error');
+      }
+
+      function writePngToClipboard(blobPromise) {
+        // WebKit requires ClipboardItem to be constructed synchronously inside
+        // the user gesture. Chromium accepts the same pending Promise<Blob>;
+        // engines that reject promise values fall back to an awaited Blob.
+        try {
+          return navigator.clipboard.write([new ClipboardItem({ 'image/png': blobPromise })]);
+        } catch (_) {
+          return blobPromise.then(function (blob) {
+            return navigator.clipboard.write([new ClipboardItem({ 'image/png': blob })]);
+          });
+        }
+      }
+
+      function runCopyShareCard() {
+        close(true);
+        clearExportReceipt();
+        if (!canCopyImage()) {
+          alert(viewerText('viewer.export.clipboardUnsupported.period'));
+          return;
+        }
+        var blobPromise = rasterizeShareCard();
+        return writePngToClipboard(blobPromise).then(function () {
+          return blobPromise.then(function (blob) {
+            recordExportReceipt('share-card', blob, true, { width: SHARE_CARD_WIDTH, height: SHARE_CARD_HEIGHT });
+            toast(viewerText('viewer.export.copiedShare'));
+          });
+        }).catch(function (err) {
+          console.error(err);
+          var technicalMessage = err && err.message ? err.message : 'share-card';
+          var message = exportMessage(err);
+          document.documentElement.setAttribute('data-last-export-error-format', 'share-card');
+          document.documentElement.setAttribute('data-last-export-error', technicalMessage);
+          alert(viewerText('viewer.export.copyFailed', { message: message }));
+        });
+      }
+
+      function runCopy() {
+        close(true);
+        clearExportReceipt();
+        if (!canCopyImage()) {
+          alert(viewerText('viewer.export.clipboardUnsupported.short'));
+          return;
+        }
+        var blobPromise = rasterize('png');
+        return writePngToClipboard(blobPromise).then(function () {
+          toast(viewerText('viewer.export.copiedPng'));
+        }).catch(function (err) {
+          console.error(err);
+          alert(viewerText('viewer.export.copyFailed', {
+            message: exportMessage(err)
+          }));
+        });
+      }
+
+      menu.addEventListener('click', function (e) {
+        var routeShareCardBtn = e.target.closest('button[data-action="route-share-card"]');
+        if (routeShareCardBtn && !routeShareCardBtn.disabled && !routeShareCardBtn.hidden) { runRouteShareCard(); return; }
+
+        var reachShareCardBtn = e.target.closest('button[data-action="reach-share-card"]');
+        if (reachShareCardBtn && !reachShareCardBtn.disabled && !reachShareCardBtn.hidden) { runReachShareCard(); return; }
+
+        var copyShareCardBtn = e.target.closest('button[data-action="copy-share-card"]');
+        if (copyShareCardBtn && !copyShareCardBtn.disabled) { runCopyShareCard(); return; }
+
+        var copyBtn = e.target.closest('button[data-action="copy"]');
+        if (copyBtn && !copyBtn.disabled) { runCopy(); return; }
+
+        var formatBtn = e.target.closest('button[data-format]');
+        if (formatBtn && !formatBtn.disabled) { runExport(formatBtn.dataset.format); }
+      });
+
+      Archify.motion = { canRecord: canRecordMotion, recordWebm: recordWebm };
+      Archify.exportMenu = {
+        open: open,
+        close: close,
+        isOpen: isOpen,
+        run: runExport,
+        shareCard: rasterizeShareCard,
+        downloadRouteShareCard: runRouteShareCard,
+        downloadReachShareCard: runReachShareCard,
+        syncRouteShare: syncRouteShareItem,
+        syncReachShare: syncReachShareItem,
+        copyShareCard: runCopyShareCard
+      };
+
+      // Auto-open on page load for demo/screenshot purposes: ?openExport=1
+      // Wait for fonts (so the menu doesn't flash before typography lands)
+      // and paint before opening. Fallback timeout for browsers without the
+      // Font Loading API.
+      try {
+        if (new URLSearchParams(window.location.search).get('openExport') === '1') {
+          var openWhenReady = function () {
+            requestAnimationFrame(function () { requestAnimationFrame(open); });
+          };
+          if (document.fonts && document.fonts.ready) {
+            document.fonts.ready.then(openWhenReady);
+          } else {
+            setTimeout(openWhenReady, 200);
+          }
+        }
+      } catch (_) {}
+    })();
+
+    /* ============================================================
+       Motion Governor — one reader switch and one motion budget. Ambient
+       trace yields to the strongest semantic owner; Still also parks bounded
+       viewer signals without discarding their static meaning.
+       ============================================================ */
+    Archify.motionGovernor = (function () {
+      var STORAGE_KEY = 'archify-motion';
+      var html = document.documentElement;
+      var svg = document.querySelector('.diagram-container svg');
+      var btn = document.getElementById('btn-motion');
+      var label = document.getElementById('motion-label');
+      var motionQuery = window.matchMedia ? window.matchMedia('(prefers-reduced-motion: reduce)') : null;
+      var capable = !!(svg && svg.getAttribute('data-animation') === 'trace');
+      var readerPaused = false;
+      var suspensions = Object.create(null);
+      var explicitOwner = '';
+      var owner = '';
+      var ownerToken = 0;
+      var ownerCleanup = null;
+      var lastEffectivePaused = null;
+      var ambientStarted = false;
+      var ambientPending = new Set();
+
+      function detachAmbientBoundary() {
+        if (!svg) return;
+        svg.removeEventListener('animationend', onAmbientBoundary, true);
+        svg.removeEventListener('animationcancel', onAmbientBoundary, true);
+      }
+      function settleAmbient(reason) {
+        if (!capable) return false;
+        ambientStarted = true;
+        ambientPending.clear();
+        detachAmbientBoundary();
+        html.setAttribute('data-ambient-motion', 'settled');
+        html.setAttribute('data-ambient-settle-reason', reason || 'complete');
+        return true;
+      }
+      function onAmbientBoundary(event) {
+        if (!ambientPending.has(event.target)) return;
+        ambientPending.delete(event.target);
+        if (!ambientPending.size) settleAmbient('complete');
+      }
+      function startAmbient() {
+        if (ambientStarted || !capable) return false;
+        ambientStarted = true;
+        ambientPending = new Set(Array.prototype.slice.call(svg.querySelectorAll('[data-animate="edge"], [data-animate="node"]')));
+        if (!ambientPending.size) return settleAmbient('empty');
+        svg.addEventListener('animationend', onAmbientBoundary, true);
+        svg.addEventListener('animationcancel', onAmbientBoundary, true);
+        html.setAttribute('data-ambient-motion', 'running');
+        html.removeAttribute('data-ambient-settle-reason');
+        return true;
+      }
+
+      function readStored() {
+        try { return localStorage.getItem(STORAGE_KEY); } catch (_) { return null; }
+      }
+      function writeStored() {
+        try {
+          if (readerPaused) localStorage.setItem(STORAGE_KEY, 'still');
+          else localStorage.removeItem(STORAGE_KEY);
+        } catch (_) {}
+      }
+      function reducedMotion() {
+        return !!(motionQuery && motionQuery.matches);
+      }
+      function hasSuspension() {
+        return Object.keys(suspensions).length > 0;
+      }
+      function effectivePaused() {
+        return readerPaused || reducedMotion() || hasSuspension();
+      }
+      function ownerLabel(value) {
+        if (value === 'story') return viewerText('viewer.owner.story');
+        if (value === 'chapter') return viewerText('viewer.owner.chapter');
+        if (value === 'chapter-preview') return viewerText('viewer.owner.chapterPreview');
+        if (value === 'handoff') return viewerText('viewer.owner.handoff');
+        if (value === 'route') return viewerText('viewer.owner.route');
+        if (value === 'lens') return viewerText('viewer.owner.lens');
+        if (value === 'relationship') return viewerText('viewer.owner.relationship');
+        if (value === 'intent') return viewerText('viewer.owner.intent');
+        if (value === 'focus') return viewerText('viewer.owner.focus');
+        if (value === 'legend') return viewerText('viewer.owner.legend');
+        return viewerText('viewer.owner.reader');
+      }
+      function render() {
+        if (!capable) return;
+        var systemPaused = reducedMotion();
+        var paused = effectivePaused();
+        html.setAttribute('data-motion', paused ? 'still' : 'live');
+        if (paused || owner || html.hasAttribute('data-embed') || html.hasAttribute('data-share-playback') || html.hasAttribute('data-document-hidden')) {
+          settleAmbient('suppressed');
+        } else if (!ambientStarted) {
+          startAmbient();
+        }
+        btn.setAttribute('aria-pressed', paused ? 'false' : 'true');
+        btn.disabled = systemPaused;
+        label.textContent = viewerText(paused ? 'viewer.motion.still' : 'viewer.motion.live');
+        if (paused && lastEffectivePaused !== true && Archify.guidedViews && Archify.guidedViews.isPlaying()) {
+          Archify.guidedViews.pause();
+        }
+        if (paused && lastEffectivePaused !== true && Archify.guidedViews && Archify.guidedViews.settleHandoff) {
+          Archify.guidedViews.settleHandoff(systemPaused ? 'reduced-motion' : (hasSuspension() ? 'hidden' : 'still'));
+        }
+        if (paused && lastEffectivePaused !== true && Archify.routeProbe && Archify.routeProbe.isJourneyPlaying && Archify.routeProbe.isJourneyPlaying()) {
+          Archify.routeProbe.pauseJourney({ preserveElapsed: true, reason: systemPaused ? 'reduced-motion' : (hasSuspension() ? 'hidden' : 'still') });
+        }
+        lastEffectivePaused = paused;
+        if (Archify.routeProbe && typeof Archify.routeProbe.syncMotion === 'function') Archify.routeProbe.syncMotion();
+        if (systemPaused) {
+          btn.setAttribute('aria-label', viewerText('viewer.motion.reduced'));
+          btn.title = viewerText('viewer.motion.reduced');
+        } else if (hasSuspension()) {
+          btn.setAttribute('aria-label', viewerText('viewer.motion.hidden'));
+          btn.title = viewerText('viewer.motion.hidden');
+        } else if (paused) {
+          btn.setAttribute('aria-label', viewerText('viewer.motion.resume'));
+          btn.title = viewerText('viewer.motion.resume');
+        } else if (owner) {
+          btn.setAttribute('aria-label', viewerText('viewer.motion.yielding', { owner: ownerLabel(owner) }));
+          btn.title = viewerText('viewer.motion.yielding.title', { owner: ownerLabel(owner) });
+        } else {
+          btn.setAttribute('aria-label', viewerText('viewer.motion.pause'));
+          btn.title = viewerText('viewer.motion.pause');
+        }
+      }
+      function setPaused(next, options) {
+        options = options || {};
+        readerPaused = !!next;
+        if (options.persist !== false) writeStored();
+        render();
+        return readerPaused;
+      }
+      function publishOwner() {
+        owner = explicitOwner || deriveOwner();
+        if (owner) html.setAttribute('data-motion-owner', owner);
+        else html.removeAttribute('data-motion-owner');
+        render();
+        return owner;
+      }
+      function deriveOwner() {
+        if (!svg) return '';
+        if (svg.hasAttribute('data-story-playing') || svg.hasAttribute('data-story-follow')) return 'story';
+        if (svg.hasAttribute('data-story-active')) return 'chapter';
+        if (svg.hasAttribute('data-route-picking') || svg.hasAttribute('data-route-active')) return 'route';
+        if (svg.hasAttribute('data-lens-active')) return 'lens';
+        if (svg.hasAttribute('data-relationship-preview-active')) return 'relationship';
+        if (svg.hasAttribute('data-intent-trace-active')) return 'intent';
+        if (svg.hasAttribute('data-focus-active')) return 'focus';
+        if (svg.hasAttribute('data-legend-preview-active')) return 'legend';
+        return '';
+      }
+      function clearClaim(preempted) {
+        var cleanup = ownerCleanup;
+        ownerCleanup = null;
+        explicitOwner = '';
+        if (preempted && cleanup) {
+          try { cleanup(); } catch (_) {}
+        }
+      }
+      function claim(next, cleanup) {
+        if (!capable || !next) return 0;
+        clearClaim(true);
+        ownerToken += 1;
+        explicitOwner = next;
+        ownerCleanup = typeof cleanup === 'function' ? cleanup : null;
+        publishOwner();
+        return ownerToken;
+      }
+      function release(token) {
+        if (!capable || token !== ownerToken || !explicitOwner) return false;
+        clearClaim(false);
+        ownerToken += 1;
+        publishOwner();
+        return true;
+      }
+      function suspend(reason) {
+        var key = String(reason || 'runtime');
+        var active = true;
+        suspensions[key] = (suspensions[key] || 0) + 1;
+        render();
+        return function () {
+          if (!active) return false;
+          active = false;
+          if (suspensions[key] > 1) suspensions[key] -= 1;
+          else delete suspensions[key];
+          render();
+          return true;
+        };
+      }
+      function syncVisibility() {
+        if (document.hidden) {
+          suspensions.visibility = true;
+          html.setAttribute('data-document-hidden', 'true');
+        } else {
+          delete suspensions.visibility;
+          html.removeAttribute('data-document-hidden');
+        }
+        render();
+      }
+
+      if (!capable) {
+        btn.hidden = true;
+        html.removeAttribute('data-motion-capable');
+        html.removeAttribute('data-motion');
+        html.removeAttribute('data-motion-owner');
+        html.removeAttribute('data-ambient-motion');
+        html.removeAttribute('data-ambient-settle-reason');
+        return {
+          capable: false,
+          pause: function () { return false; },
+          resume: function () { return false; },
+          toggle: function () { return false; },
+          setMode: function () { return 'still'; },
+          mode: function () { return 'still'; },
+          claim: function () { return 0; },
+          release: function () { return false; },
+          suspend: function () { return function () { return false; }; },
+          isPaused: function () { return true; },
+          owner: function () { return ''; }
+        };
+      }
+
+      html.setAttribute('data-motion-capable', 'true');
+      btn.hidden = false;
+      readerPaused = readStored() === 'still';
+      btn.addEventListener('click', function () { setPaused(!readerPaused); });
+      if (motionQuery) {
+        if (typeof motionQuery.addEventListener === 'function') motionQuery.addEventListener('change', render);
+        else if (typeof motionQuery.addListener === 'function') motionQuery.addListener(render);
+      }
+      document.addEventListener('visibilitychange', syncVisibility);
+      if (document.documentElement.getAttribute('data-embed') !== 'true' && typeof MutationObserver !== 'undefined' && typeof Node !== 'undefined' && svg instanceof Node) {
+        var ownerObserver = new MutationObserver(function () { publishOwner(); });
+        ownerObserver.observe(svg, {
+          attributes: true,
+          attributeFilter: [
+            'data-story-playing', 'data-story-follow', 'data-story-active', 'data-route-picking', 'data-route-active',
+            'data-lens-active', 'data-relationship-preview-active', 'data-intent-trace-active',
+            'data-focus-active', 'data-legend-preview-active'
+          ]
+        });
+      }
+      syncVisibility();
+      publishOwner();
+      render();
+
+      return {
+        capable: true,
+        pause: function () { return setPaused(true); },
+        resume: function () { return setPaused(false); },
+        toggle: function () { return setPaused(!readerPaused); },
+        setMode: function (next, options) {
+          setPaused(next === 'still', options);
+          return effectivePaused() ? 'still' : 'live';
+        },
+        mode: function () { return effectivePaused() ? 'still' : 'live'; },
+        claim: claim,
+        release: release,
+        suspend: suspend,
+        isPaused: effectivePaused,
+        owner: function () { return owner; }
+      };
+    })();
+
+    /* Verified repository evidence is emitted only after the renderer checks
+       the authored GitHub revision, source blobs, and optional line ranges
+       against the explicit --repo-root. It remains outside the SVG so every
+       canonical visual export stays free of repository paths. */
+    Archify.sourceEvidence = (function () {
+      var element = document.getElementById('archify-source-evidence-data');
+      var payload = null;
+      var svgNamespace = 'http://www.w3.org/2000/svg';
+      if (element) {
+        try {
+          var parsed = JSON.parse(element.textContent || 'null');
+          if (parsed && parsed.verified === true && parsed.repository && parsed.nodes) payload = parsed;
+        } catch (_) {}
+      }
+      function installBeacons() {
+        if (!payload) return 0;
+        var svg = document.querySelector('.diagram-container svg');
+        if (!svg) return 0;
+        var installed = 0;
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+          var id = node.getAttribute('data-node-id');
+          var sources = payload.nodes[id];
+          if (!Array.isArray(sources) || !sources.length || node.querySelector('[data-source-evidence-beacon]')) return;
+          var shape = node.querySelector('[data-animate="node"]') || node.querySelector('[class*="c-"]');
+          var box;
+          try { box = (shape || node).getBBox(); } catch (_) { return; }
+          if (!box || !Number.isFinite(box.x) || !Number.isFinite(box.y) || !Number.isFinite(box.width) || box.width < 36) return;
+
+          var count = sources.length;
+          var label = viewerCount('viewer.passport.beacon', count);
+          var beacon = document.createElementNS(svgNamespace, 'g');
+          beacon.classList.add('source-evidence-beacon');
+          beacon.setAttribute('data-source-evidence-beacon', '');
+          beacon.setAttribute('aria-hidden', 'true');
+          var brandOffset = node.hasAttribute('data-node-brand') ? 24 : 0;
+          beacon.setAttribute('transform', 'translate(' + (box.x + box.width - 35 - brandOffset) + ' ' + (box.y + 5) + ')');
+          var title = document.createElementNS(svgNamespace, 'title');
+          title.textContent = label;
+          var plate = document.createElementNS(svgNamespace, 'rect');
+          plate.setAttribute('width', '30');
+          plate.setAttribute('height', '12');
+          plate.setAttribute('rx', '6');
+          var text = document.createElementNS(svgNamespace, 'text');
+          text.setAttribute('x', '15');
+          text.setAttribute('y', '8.25');
+          text.textContent = viewerText('viewer.passport.sourceMarker') + ' ' + count;
+          beacon.appendChild(title);
+          beacon.appendChild(plate);
+          beacon.appendChild(text);
+          node.appendChild(beacon);
+
+          var originalLabel = node.getAttribute('aria-label') || '';
+          node.setAttribute('data-source-evidence-count', String(count));
+          node.setAttribute('data-source-evidence-original-label', originalLabel);
+          node.setAttribute('aria-label', (originalLabel ? originalLabel + ', ' : '') + viewerCount('viewer.passport.sourceCount', count));
+          installed += 1;
+        });
+        return installed;
+      }
+      return {
+        available: function () { return Boolean(payload); },
+        repository: function () { return payload ? payload.repository : null; },
+        node: function (id) {
+          var sources = payload && payload.nodes ? payload.nodes[id] : null;
+          return Array.isArray(sources) ? sources.slice() : [];
+        },
+        installBeacons: installBeacons
+      };
+    })();
+    Archify.sourceEvidence.installBeacons();
+
+    /* ============================================================
+       Explore — stable-ID neighborhood focus + dependency-free pan/zoom.
+       Renderer IDs become deep-linkable semantic hooks without turning the
+       standalone artifact into a canvas editor.
+       ============================================================ */
+    Archify.focus = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector('svg');
+      var chip = document.getElementById('focus-chip');
+      var label = document.getElementById('focus-label');
+      var detail = document.getElementById('focus-detail');
+      var kind = document.getElementById('focus-kind');
+      var context = document.getElementById('focus-context');
+      var tag = document.getElementById('focus-tag');
+      var semanticId = document.getElementById('focus-id');
+      var evidence = document.getElementById('focus-evidence');
+      var repositoryLink = document.getElementById('focus-repository');
+      var evidenceLinks = document.getElementById('focus-evidence-links');
+      var summary = document.getElementById('focus-summary');
+      var reachSection = document.getElementById('focus-reach');
+      var reachStatus = document.getElementById('focus-reach-status');
+      var upstreamBtn = document.getElementById('btn-reach-upstream');
+      var downstreamBtn = document.getElementById('btn-reach-downstream');
+      var upstreamCount = document.getElementById('focus-reach-upstream-count');
+      var downstreamCount = document.getElementById('focus-reach-downstream-count');
+      var relationshipList = document.getElementById('relationship-lens-list');
+      var copyBtn = document.getElementById('btn-focus-copy');
+      var relationsBtn = document.getElementById('btn-focus-relations');
+      var clearBtn = document.getElementById('btn-focus-clear');
+      var activeIds = [];
+      var hoveredRelationship = null;
+      var focusedRelationship = null;
+      var pinnedRelationship = null;
+      var pinnedRelationshipKey = null;
+      var activeRelationshipPreview = null;
+      var relationshipHitOverlay = null;
+      var relationshipHitTargets = [];
+      var directPreviewTimer = null;
+      var reachabilityMode = null;
+      var activeReachability = null;
+      var svgNamespace = 'http://www.w3.org/2000/svg';
+      var reducedMotionQuery = window.matchMedia ? window.matchMedia('(prefers-reduced-motion: reduce)') : null;
+      var finePointerQuery = window.matchMedia ? window.matchMedia('(hover: hover) and (pointer: fine)') : null;
+
+      function nodes() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-node-id]'));
+      }
+      function edges() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'));
+      }
+      function nodeLabel(node, fallback) {
+        return node.getAttribute('data-node-label') || (node.getAttribute('aria-label') || fallback).replace(/^Focus\s+/, '');
+      }
+      function reachabilityRelationships() {
+        var seen = Object.create(null);
+        var relationships = [];
+        edges().forEach(function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          var key = edge.getAttribute('data-edge-key') || (from + '\u0000' + to + '\u0000' + (edge.getAttribute('data-edge-label') || ''));
+          if (!from || !to || seen[key]) return;
+          seen[key] = true;
+          relationships.push({ key: key, from: from, to: to });
+        });
+        return relationships;
+      }
+      function computeReachability(originId, direction, relationships) {
+        if (typeof originId !== 'string' || !originId ||
+            (direction !== 'upstream' && direction !== 'downstream') ||
+            !Array.isArray(relationships)) return null;
+        var records = [];
+        var seenKeys = Object.create(null);
+        relationships.forEach(function (relationship, index) {
+          if (!relationship || typeof relationship.from !== 'string' || !relationship.from ||
+              typeof relationship.to !== 'string' || !relationship.to) return;
+          var key = typeof relationship.key === 'string' && relationship.key
+            ? relationship.key : String(index);
+          if (seenKeys[key]) return;
+          seenKeys[key] = true;
+          records.push({ key: key, from: relationship.from, to: relationship.to });
+        });
+
+        var depths = Object.create(null);
+        var order = [];
+        var queue = [originId];
+        depths[originId] = 0;
+        for (var cursor = 0; cursor < queue.length; cursor += 1) {
+          var current = queue[cursor];
+          records.forEach(function (relationship) {
+            var next = null;
+            if (direction === 'downstream' && relationship.from === current) next = relationship.to;
+            else if (direction === 'upstream' && relationship.to === current) next = relationship.from;
+            if (next == null || Object.prototype.hasOwnProperty.call(depths, next)) return;
+            depths[next] = depths[current] + 1;
+            queue.push(next);
+          });
+        }
+        queue.forEach(function (id) { order.push(id); });
+
+        var edgeKeys = [];
+        records.forEach(function (relationship) {
+          if (Object.prototype.hasOwnProperty.call(depths, relationship.from) &&
+              Object.prototype.hasOwnProperty.call(depths, relationship.to)) edgeKeys.push(relationship.key);
+        });
+        var maxDepth = order.reduce(function (maximum, id) {
+          return Math.max(maximum, depths[id]);
+        }, 0);
+        return {
+          direction: direction,
+          originId: originId,
+          nodeIds: order,
+          edgeKeys: edgeKeys,
+          depths: depths,
+          maxDepth: maxDepth
+        };
+      }
+      function reachabilityFor(id, direction) {
+        return computeReachability(id, direction, reachabilityRelationships());
+      }
+      function resetReachabilityButtons() {
+        upstreamBtn.setAttribute('aria-pressed', 'false');
+        downstreamBtn.setAttribute('aria-pressed', 'false');
+      }
+      function clearReachability(options) {
+        options = options || {};
+        reachabilityMode = null;
+        activeReachability = null;
+        svg.removeAttribute('data-reach-active');
+        chip.removeAttribute('data-reach-mode');
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-reach-match');
+          node.removeAttribute('data-reach-origin');
+          node.removeAttribute('data-reach-depth');
+        });
+        edges().forEach(function (edge) {
+          edge.removeAttribute('data-reach-match');
+          edge.removeAttribute('data-reach-depth');
+        });
+        resetReachabilityButtons();
+        reachStatus.textContent = '';
+        reachStatus.hidden = true;
+        if (Archify.exportMenu && typeof Archify.exportMenu.syncReachShare === 'function') {
+          Archify.exportMenu.syncReachShare();
+        }
+        if (options.updateUrl === true && activeIds.length === 1) {
+          try {
+            history.replaceState(null, '', location.pathname + location.search + '#focus=' + encodeURIComponent(activeIds[0]));
+          } catch (_) {}
+        }
+      }
+      function renderReachabilityControls(id) {
+        var upstream = reachabilityFor(id, 'upstream');
+        var downstream = reachabilityFor(id, 'downstream');
+        var upstreamReach = upstream ? Math.max(0, upstream.nodeIds.length - 1) : 0;
+        var downstreamReach = downstream ? Math.max(0, downstream.nodeIds.length - 1) : 0;
+        upstreamCount.textContent = String(upstreamReach);
+        downstreamCount.textContent = String(downstreamReach);
+        upstreamBtn.disabled = upstreamReach === 0;
+        downstreamBtn.disabled = downstreamReach === 0;
+        upstreamBtn.setAttribute('aria-label', upstreamReach
+          ? viewerCount('viewer.passport.reach.upstream', upstreamReach)
+          : viewerText('viewer.passport.reach.noUpstream'));
+        downstreamBtn.setAttribute('aria-label', downstreamReach
+          ? viewerCount('viewer.passport.reach.downstream', downstreamReach)
+          : viewerText('viewer.passport.reach.noDownstream'));
+        reachSection.hidden = false;
+      }
+      function applyReachability(direction, options) {
+        options = options || {};
+        if (activeIds.length !== 1 || (direction !== 'upstream' && direction !== 'downstream')) return false;
+        if (reachabilityMode === direction && options.toggle !== false) {
+          clearReachability({ updateUrl: options.updateUrl !== false });
+          return true;
+        }
+        var result = reachabilityFor(activeIds[0], direction);
+        if (!result || result.nodeIds.length <= 1) return false;
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false, resetView: false });
+        }
+        clearRelationshipPreview({ clearPin: true });
+        clearReachability({ updateUrl: false });
+        reachabilityMode = direction;
+        activeReachability = result;
+        var edgeKeySet = Object.create(null);
+        result.edgeKeys.forEach(function (key) { edgeKeySet[key] = true; });
+        svg.setAttribute('data-reach-active', direction);
+        chip.setAttribute('data-reach-mode', direction);
+        nodes().forEach(function (node) {
+          var id = node.getAttribute('data-node-id');
+          if (!Object.prototype.hasOwnProperty.call(result.depths, id)) return;
+          node.setAttribute('data-reach-match', '');
+          node.setAttribute('data-reach-depth', String(result.depths[id]));
+          if (id === result.originId) node.setAttribute('data-reach-origin', '');
+        });
+        edges().forEach(function (edge) {
+          var key = edge.getAttribute('data-edge-key') || (
+            edge.getAttribute('data-edge-from') + '\u0000' +
+            edge.getAttribute('data-edge-to') + '\u0000' +
+            (edge.getAttribute('data-edge-label') || '')
+          );
+          if (!edgeKeySet[key]) return;
+          edge.setAttribute('data-reach-match', '');
+          var fromDepth = result.depths[edge.getAttribute('data-edge-from')];
+          var toDepth = result.depths[edge.getAttribute('data-edge-to')];
+          edge.setAttribute('data-reach-depth', String(Math.max(fromDepth || 0, toDepth || 0)));
+        });
+        resetReachabilityButtons();
+        var activeButton = direction === 'upstream' ? upstreamBtn : downstreamBtn;
+        activeButton.setAttribute('aria-pressed', 'true');
+        var reachableCount = result.nodeIds.length - 1;
+        var directionLabel = viewerText(direction === 'upstream'
+          ? 'viewer.passport.upstream'
+          : 'viewer.passport.downstream');
+        reachStatus.textContent = viewerText('viewer.passport.reach.status', {
+          direction: directionLabel,
+          nodes: reachableCount,
+          links: result.edgeKeys.length,
+          hops: result.maxDepth
+        });
+        reachStatus.hidden = false;
+        if (Archify.exportMenu && typeof Archify.exportMenu.syncReachShare === 'function') {
+          Archify.exportMenu.syncReachShare();
+        }
+        if (options.updateUrl !== false) {
+          try {
+            history.replaceState(null, '', location.pathname + location.search + '#focus=' +
+              encodeURIComponent(activeIds[0]) + '&reach=' + direction);
+          } catch (_) {}
+        }
+        if (options.reveal !== false && Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal(result.nodeIds, { includeNeighbors: false, reason: 'reachability' });
+        }
+        requestLensPlacement();
+        return true;
+      }
+      function reachabilitySnapshot() {
+        if (!activeReachability || activeIds.length !== 1 ||
+            (reachabilityMode !== 'upstream' && reachabilityMode !== 'downstream') ||
+            activeReachability.direction !== reachabilityMode ||
+            activeReachability.originId !== activeIds[0] ||
+            svg.getAttribute('data-reach-active') !== reachabilityMode) return null;
+
+        var originId = activeReachability.originId;
+        var nodeIds = activeReachability.nodeIds.slice();
+        var edgeKeys = activeReachability.edgeKeys.slice();
+        if (nodeIds.length < 2 || nodeIds[0] !== originId || !edgeKeys.length ||
+            !activeReachability.depths || !Number.isInteger(activeReachability.maxDepth) ||
+            activeReachability.maxDepth < 1) return null;
+
+        var allNodes = nodes();
+        var allEdges = edges();
+        var seenNodeIds = Object.create(null);
+        var seenEdgeKeys = Object.create(null);
+        var nodeIdSet = Object.create(null);
+        var depths = Object.create(null);
+        var originNode = null;
+        var measuredMaxDepth = 0;
+
+        if (nodeIds.some(function (id) {
+          var depth = activeReachability.depths[id];
+          var matches = allNodes.filter(function (node) {
+            return node.getAttribute('data-node-id') === id;
+          });
+          if (typeof id !== 'string' || !id || seenNodeIds[id] || matches.length !== 1 ||
+              !matches[0].hasAttribute('data-reach-match') ||
+              !Number.isInteger(depth) || depth < 0 || depth > activeReachability.maxDepth ||
+              (id === originId
+                ? (!matches[0].hasAttribute('data-reach-origin') || depth !== 0)
+                : depth < 1)) return true;
+          seenNodeIds[id] = true;
+          nodeIdSet[id] = true;
+          depths[id] = depth;
+          measuredMaxDepth = Math.max(measuredMaxDepth, depth);
+          if (id === originId) originNode = matches[0];
+          return false;
+        }) || !originNode || measuredMaxDepth !== activeReachability.maxDepth ||
+            allNodes.filter(function (node) { return node.hasAttribute('data-reach-match'); }).length !== nodeIds.length) return null;
+
+        var edgeRecords = [];
+        if (edgeKeys.some(function (key) {
+          if (typeof key !== 'string' || !key || seenEdgeKeys[key]) return true;
+          var fragments = allEdges.filter(function (edge) {
+            return edge.getAttribute('data-edge-key') === key;
+          });
+          var drawableFragments = fragments.filter(hasDrawableGeometry);
+          if (!fragments.length || drawableFragments.length !== 1 ||
+              !fragments.every(function (fragment) { return fragment.hasAttribute('data-reach-match'); })) return true;
+          var first = fragments[0];
+          var from = first.getAttribute('data-edge-from');
+          var to = first.getAttribute('data-edge-to');
+          var id = first.getAttribute('data-edge-id') || '';
+          var labelValue = first.getAttribute('data-edge-label') || '';
+          if (!nodeIdSet[from] || !nodeIdSet[to] || !fragments.every(function (fragment) {
+            return fragment.getAttribute('data-edge-from') === from &&
+              fragment.getAttribute('data-edge-to') === to &&
+              (fragment.getAttribute('data-edge-id') || '') === id;
+          })) return true;
+          seenEdgeKeys[key] = true;
+          edgeRecords.push({
+            key: key,
+            id: id,
+            from: from,
+            to: to,
+            label: labelValue,
+            depth: Math.max(depths[from], depths[to])
+          });
+          return false;
+        })) return null;
+
+        var liveEdgeKeys = Object.create(null);
+        if (allEdges.some(function (edge) {
+          if (!edge.hasAttribute('data-reach-match')) return false;
+          var key = edge.getAttribute('data-edge-key');
+          if (!key || !seenEdgeKeys[key]) return true;
+          liveEdgeKeys[key] = true;
+          return false;
+        }) || Object.keys(liveEdgeKeys).length !== edgeKeys.length) return null;
+
+        return {
+          direction: reachabilityMode,
+          origin: { id: originId, label: nodeLabel(originNode, originId) },
+          nodeIds: nodeIds,
+          depths: depths,
+          maxDepth: activeReachability.maxDepth,
+          edges: edgeRecords
+        };
+      }
+      function setPassportValue(element, value) {
+        var normalized = value == null ? '' : String(value).trim();
+        element.textContent = normalized;
+        element.hidden = !normalized;
+      }
+      function renderSourceEvidence(id) {
+        evidenceLinks.textContent = '';
+        repositoryLink.removeAttribute('href');
+        repositoryLink.textContent = '';
+        var sources = Archify.sourceEvidence.node(id);
+        var repository = Archify.sourceEvidence.repository();
+        if (!repository || !sources.length) {
+          evidence.hidden = true;
+          return;
+        }
+        var slug = repository.url.replace(/^https:\/\/github\.com\//, '').replace(/\/$/, '');
+        repositoryLink.href = repository.url + '/tree/' + repository.revision;
+        repositoryLink.textContent = slug + ' @ ' + repository.shortRevision;
+        repositoryLink.setAttribute('aria-label', viewerText('viewer.passport.repository.open', { revision: repository.revision }));
+        sources.forEach(function (source) {
+          var link = document.createElement('a');
+          link.className = 'semantic-passport-source';
+          link.href = source.href;
+          link.target = '_blank';
+          link.rel = 'noopener noreferrer';
+          link.referrerPolicy = 'no-referrer';
+          link.setAttribute('aria-label', viewerText('viewer.passport.source.open', { path: source.path, revision: repository.shortRevision }));
+          var name = document.createElement('strong');
+          name.textContent = source.label || source.path.split('/').pop() || source.path;
+          var location = document.createElement('code');
+          location.textContent = source.line
+            ? 'L' + source.line + (source.endLine && source.endLine !== source.line ? '–' + source.endLine : '') + ' ↗'
+            : viewerText('viewer.passport.source.openLink');
+          var sourcePath = document.createElement('small');
+          sourcePath.textContent = source.path;
+          link.appendChild(name);
+          link.appendChild(location);
+          link.appendChild(sourcePath);
+          evidenceLinks.appendChild(link);
+        });
+        evidence.hidden = false;
+      }
+      function renderPassport(id, node) {
+        setPassportValue(detail, node.getAttribute('data-node-sublabel'));
+        setPassportValue(kind, viewerKindLabel(node.getAttribute('data-node-kind') || 'node'));
+        setPassportValue(context, node.getAttribute('data-node-context'));
+        setPassportValue(tag, node.getAttribute('data-node-tag'));
+        setPassportValue(document.getElementById('focus-brand'), node.getAttribute('data-node-brand'));
+        semanticId.textContent = id;
+        semanticId.hidden = false;
+        renderSourceEvidence(id);
+      }
+      function relationshipsFor(id, byId) {
+        var seen = {};
+        var relationships = [];
+        edges().forEach(function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          if (from !== id && to !== id) return;
+          var edgeLabel = edge.getAttribute('data-edge-label') || '';
+          var edgeKey = edge.getAttribute('data-edge-key') || (from + '\u0000' + to + '\u0000' + edgeLabel);
+          var edgeId = edge.getAttribute('data-edge-id') || '';
+          if (seen[edgeKey]) return;
+          seen[edgeKey] = true;
+          var direction = from === id && to === id ? 'loop' : (from === id ? 'out' : 'in');
+          var neighborId = direction === 'in' ? from : to;
+          var neighbor = byId[neighborId];
+          relationships.push({
+            key: edgeKey,
+            id: edgeId,
+            from: from,
+            to: to,
+            direction: direction,
+            neighborId: neighborId,
+            neighborLabel: neighbor ? nodeLabel(neighbor, neighborId) : neighborId,
+            label: edgeLabel || viewerText(direction === 'loop'
+              ? 'viewer.passport.relationship.loopsBack'
+              : direction === 'out'
+                ? 'viewer.passport.relationship.connectsTo'
+                : 'viewer.passport.relationship.connectsFrom')
+          });
+        });
+        return relationships;
+      }
+      function relationshipEdgeShapes(edge) {
+        if (!edge) return [];
+        if (/^(path|line|polyline)$/i.test(edge.tagName || '')) return [edge];
+        return Array.prototype.slice.call(edge.querySelectorAll('path, line, polyline'));
+      }
+      function relationshipHitRecords() {
+        var recordsByKey = {};
+        var recordsById = {};
+        var byId = {};
+        nodes().forEach(function (node) { byId[node.getAttribute('data-node-id')] = node; });
+        var records = [];
+        edges().forEach(function (edge) {
+          var shapes = relationshipEdgeShapes(edge);
+          if (!shapes.length) return;
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          var labelValue = edge.getAttribute('data-edge-label') || '';
+          var edgeId = edge.getAttribute('data-edge-id') || '';
+          var key = edge.getAttribute('data-edge-key') || (from + '\u0000' + to + '\u0000' + labelValue);
+          var existing = recordsByKey[key];
+          if (existing) {
+            if (existing.from !== from || existing.to !== to || existing.labelValue !== labelValue || existing.id !== edgeId) {
+              existing.invalid = true;
+              return;
+            }
+            shapes.forEach(function (shape) {
+              if (existing.shapes.indexOf(shape) === -1) existing.shapes.push(shape);
+            });
+            return;
+          }
+          var record = {
+            key: key,
+            id: edgeId,
+            from: from,
+            to: to,
+            fromLabel: byId[from] ? nodeLabel(byId[from], from) : from,
+            toLabel: byId[to] ? nodeLabel(byId[to], to) : to,
+            labelValue: labelValue,
+            label: labelValue || viewerText(from === to
+              ? 'viewer.passport.relationship.loopsBack'
+              : 'viewer.passport.relationship.connectsTo'),
+            edge: edge,
+            shapes: shapes,
+            invalid: false
+          };
+          recordsByKey[key] = record;
+          if (edgeId) {
+            if (recordsById[edgeId]) {
+              recordsById[edgeId].invalid = true;
+              record.invalid = true;
+            } else {
+              recordsById[edgeId] = record;
+            }
+          }
+          records.push(record);
+        });
+        return records.filter(function (record) { return !record.invalid && record.from && record.to; });
+      }
+      function relationshipRecordForKey(key) {
+        return relationshipHitRecords().find(function (record) { return record.key === key; }) || null;
+      }
+      function pinnedRelationshipRecord() {
+        return pinnedRelationshipKey ? relationshipRecordForKey(pinnedRelationshipKey) : null;
+      }
+      function renderRelationshipCopyAction() {
+        var record = pinnedRelationshipRecord();
+        if (record && record.id) {
+          copyBtn.textContent = viewerText('viewer.passport.copyRelation');
+          copyBtn.setAttribute('aria-label', viewerText('viewer.passport.copyPinned'));
+        } else if (pinnedRelationshipKey) {
+          copyBtn.textContent = viewerText('viewer.passport.copyNode');
+          copyBtn.setAttribute('aria-label', viewerText('viewer.passport.copySource'));
+        } else {
+          copyBtn.textContent = viewerText('viewer.passport.copy');
+          copyBtn.setAttribute('aria-label', viewerText('viewer.passport.copy.focus'));
+        }
+      }
+      function relationshipHitGeometry(shape, className) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('filter');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('tabindex');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-labelledby');
+        clone.removeAttribute('aria-hidden');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.setAttribute('class', className || 'relationship-hit-rail');
+        return clone;
+      }
+      function removeRelationshipPulse() {
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-relationship-pulse-overlay]'), function (element) {
+          element.remove();
+        });
+      }
+      function relationshipPulseGeometry(shape) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('transform');
+        clone.removeAttribute('filter');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('tabindex');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-hidden');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.removeAttribute('data-focus-match');
+        clone.removeAttribute('data-relationship-preview');
+        clone.setAttribute('class', 'relationship-flow-pulse');
+        clone.setAttribute('pathLength', '1');
+        return clone;
+      }
+      function relationshipTokenKind(edge) {
+        var shapes = relationshipEdgeShapes(edge);
+        var classEvidence = [edge.getAttribute('class') || ''].concat(shapes.map(function (shape) {
+          return shape.getAttribute('class') || '';
+        })).join(' ');
+        var from = edge.getAttribute('data-edge-from') || '';
+        var to = edge.getAttribute('data-edge-to') || '';
+        var source = nodes().find(function (node) { return node.getAttribute('data-node-id') === from; });
+        var target = nodes().find(function (node) { return node.getAttribute('data-node-id') === to; });
+        var sourceKind = source ? source.getAttribute('data-node-kind') || 'neutral' : 'neutral';
+        var targetKind = target ? target.getAttribute('data-node-kind') || 'neutral' : 'neutral';
+        if (/\ba-security\b/.test(classEvidence) || sourceKind === 'security' || targetKind === 'security' || targetKind === 'failure') return 'security';
+        if (/\ba-dashed\b/.test(classEvidence) || sourceKind === 'messagebus' || targetKind === 'messagebus') return 'event';
+        if (sourceKind === 'database' || targetKind === 'database') return 'data';
+        if (targetKind === 'waiting' || targetKind === 'success') return 'state';
+        return 'call';
+      }
+      function relationshipTokenPath(shape) {
+        if (!shape) return '';
+        var tagName = String(shape.tagName || '').toLowerCase();
+        if (tagName === 'path') return shape.getAttribute('d') || '';
+        if (tagName === 'line') {
+          return 'M ' + shape.getAttribute('x1') + ' ' + shape.getAttribute('y1') +
+            ' L ' + shape.getAttribute('x2') + ' ' + shape.getAttribute('y2');
+        }
+        if (tagName === 'polyline' && shape.points && shape.points.numberOfItems > 1) {
+          var commands = [];
+          for (var i = 0; i < shape.points.numberOfItems; i += 1) {
+            var point = shape.points.getItem(i);
+            commands.push((i === 0 ? 'M ' : 'L ') + point.x + ' ' + point.y);
+          }
+          return commands.join(' ');
+        }
+        return '';
+      }
+      function relationshipTokenPart(tagName, className, attrs) {
+        var part = document.createElementNS(svgNamespace, tagName);
+        part.setAttribute('class', className);
+        Object.keys(attrs || {}).forEach(function (name) { part.setAttribute(name, attrs[name]); });
+        return part;
+      }
+      function relationshipTokenGeometry(shape, kind, key, options) {
+        options = options || {};
+        var pathData = relationshipTokenPath(shape);
+        if (!pathData) return null;
+        var token = document.createElementNS(svgNamespace, 'g');
+        token.setAttribute('class', 'semantic-flow-token ' + (options.className || 'relationship-flow-token'));
+        token.setAttribute('data-token-kind', kind);
+        token.setAttribute('data-token-edge-key', key);
+        token.setAttribute('aria-hidden', 'true');
+        token.appendChild(relationshipTokenPart('circle', 'semantic-flow-token-halo', { cx: '0', cy: '0', r: '7' }));
+        if (kind === 'data') {
+          token.appendChild(relationshipTokenPart('rect', 'relationship-flow-token-shape', { x: '-5', y: '-4', width: '10', height: '8', rx: '2' }));
+          token.appendChild(relationshipTokenPart('path', 'relationship-flow-token-ink', { d: 'M -2.8 -1.2 h 5.6 M -2.8 1.4 h 3.8' }));
+        } else if (kind === 'event') {
+          token.appendChild(relationshipTokenPart('rect', 'relationship-flow-token-shape', { x: '-7', y: '-3', width: '4', height: '6', rx: '1' }));
+          token.appendChild(relationshipTokenPart('rect', 'relationship-flow-token-shape', { x: '-2', y: '-3', width: '4', height: '6', rx: '1' }));
+          token.appendChild(relationshipTokenPart('rect', 'relationship-flow-token-shape', { x: '3', y: '-3', width: '4', height: '6', rx: '1' }));
+        } else if (kind === 'security') {
+          token.appendChild(relationshipTokenPart('path', 'relationship-flow-token-shape', { d: 'M 0 -5 L 4 -3.4 V 0 c 0 3 -1.6 4.5 -4 5.5 C -2.4 4.5 -4 3 -4 0 v -3.4 Z' }));
+          token.appendChild(relationshipTokenPart('path', 'relationship-flow-token-ink', { d: 'm -2 .2 1.4 1.4 L 2 -1.4' }));
+        } else if (kind === 'state') {
+          token.appendChild(relationshipTokenPart('circle', 'relationship-flow-token-shape', { cx: '0', cy: '0', r: '5' }));
+          token.appendChild(relationshipTokenPart('circle', 'relationship-flow-token-dot', { cx: '0', cy: '0', r: '1.35' }));
+        } else {
+          token.appendChild(relationshipTokenPart('path', 'relationship-flow-token-ink', { d: 'M -5 -3 L -1 0 L -5 3 M 0 -3 L 4 0 L 0 3' }));
+        }
+        var motion = document.createElementNS(svgNamespace, 'animateMotion');
+        motion.setAttribute('path', pathData);
+        motion.setAttribute('dur', options.duration || '1.2s');
+        motion.setAttribute('begin', '0s');
+        motion.setAttribute('fill', 'freeze');
+        motion.setAttribute('rotate', 'auto');
+        motion.setAttribute('calcMode', 'spline');
+        motion.setAttribute('keyTimes', '0;1');
+        motion.setAttribute('keySplines', '.2 0 .2 1');
+        token.appendChild(motion);
+        return token;
+      }
+      function createSemanticFlowToken(edge, shape, options) {
+        if (!edge || !shape) return null;
+        var key = edge.getAttribute('data-edge-key') || (
+          edge.getAttribute('data-edge-from') + '\u0000' +
+          edge.getAttribute('data-edge-to') + '\u0000' +
+          (edge.getAttribute('data-edge-label') || '')
+        );
+        return relationshipTokenGeometry(shape, relationshipTokenKind(edge), key, options);
+      }
+      Archify.flowTokens = {
+        create: createSemanticFlowToken,
+        kind: function (edge) { return relationshipTokenKind(edge); },
+        path: relationshipTokenPath
+      };
+      function renderRelationshipPulse(key) {
+        removeRelationshipPulse();
+        if (!key || document.documentElement.getAttribute('data-embed') === 'true') return false;
+        if (document.hidden || (Archify.motionGovernor && Archify.motionGovernor.isPaused())) return false;
+        if (reducedMotionQuery && reducedMotionQuery.matches) return false;
+        var matchingEdges = edges().filter(function (edge) {
+          return edge.getAttribute('data-edge-key') === key;
+        });
+        if (!matchingEdges.length) return false;
+        var overlay = document.createElementNS(svgNamespace, 'g');
+        overlay.setAttribute('class', 'relationship-pulse-overlay');
+        overlay.setAttribute('data-relationship-pulse-overlay', '');
+        overlay.setAttribute('data-relationship-pulse-key', key);
+        overlay.setAttribute('aria-hidden', 'true');
+        var tokenAdded = false;
+        matchingEdges.forEach(function (edge) {
+          var wrapper = document.createElementNS(svgNamespace, 'g');
+          if (edge.hasAttribute('transform')) wrapper.setAttribute('transform', edge.getAttribute('transform'));
+          var shapes = relationshipEdgeShapes(edge);
+          shapes.forEach(function (shape) {
+            wrapper.appendChild(relationshipPulseGeometry(shape));
+          });
+          if (!tokenAdded && shapes.length) {
+            var tokenKind = relationshipTokenKind(edge);
+            var token = relationshipTokenGeometry(shapes[0], tokenKind, key);
+            if (token) {
+              wrapper.appendChild(token);
+              overlay.setAttribute('data-relationship-token-kind', tokenKind);
+              tokenAdded = true;
+            }
+          }
+          if (wrapper.childNodes.length) overlay.appendChild(wrapper);
+        });
+        if (!overlay.childNodes.length) return false;
+        var finishPulse = function () {
+          if (overlay.parentNode) overlay.remove();
+        };
+        overlay.addEventListener('animationend', finishPulse, { once: true });
+        overlay.addEventListener('animationcancel', finishPulse, { once: true });
+        var firstNode = svg.querySelector('[data-node-id]');
+        if (firstNode) svg.insertBefore(overlay, firstNode);
+        else svg.appendChild(overlay);
+        return true;
+      }
+      function clearRelationshipPreview(options) {
+        options = options || {};
+        if (directPreviewTimer) window.clearTimeout(directPreviewTimer);
+        directPreviewTimer = null;
+        removeRelationshipPulse();
+        activeRelationshipPreview = null;
+        svg.removeAttribute('data-relationship-preview-active');
+        svg.removeAttribute('data-relationship-direct-active');
+        if (options.clearPin === true) {
+          pinnedRelationship = null;
+          pinnedRelationshipKey = null;
+          svg.removeAttribute('data-relationship-pin-active');
+        }
+        chip.removeAttribute('data-relationship-previewing');
+        edges().forEach(function (edge) { edge.removeAttribute('data-relationship-preview'); });
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-relationship-preview-node');
+          node.removeAttribute('data-relationship-preview-source');
+          node.removeAttribute('data-relationship-preview-target');
+        });
+        Array.prototype.forEach.call(relationshipList.querySelectorAll('[data-preview-active]'), function (button) {
+          button.removeAttribute('data-preview-active');
+        });
+        relationshipHitTargets.forEach(function (target) {
+          target.setAttribute('aria-pressed', pinnedRelationshipKey && target.getAttribute('data-relationship-key') === pinnedRelationshipKey ? 'true' : 'false');
+          target.removeAttribute('data-preview-active');
+        });
+        renderRelationshipCopyAction();
+        requestLensPlacement();
+      }
+      function previewRelationship(button, options) {
+        options = options || {};
+        if (pinnedRelationshipKey && pinnedRelationship && button !== pinnedRelationship) return;
+        clearRelationshipPreview();
+        if (!button) return;
+        var key = button.getAttribute('data-relationship-key');
+        var from = button.getAttribute('data-relationship-from');
+        var to = button.getAttribute('data-relationship-to');
+        if (!key || !from || !to) return;
+        svg.setAttribute('data-relationship-preview-active', key);
+        if (options.direct === true) svg.setAttribute('data-relationship-direct-active', key);
+        edges().forEach(function (edge) {
+          if (edge.getAttribute('data-edge-key') === key) edge.setAttribute('data-relationship-preview', '');
+        });
+        nodes().forEach(function (node) {
+          var id = node.getAttribute('data-node-id');
+          if (id !== from && id !== to) return;
+          node.setAttribute('data-relationship-preview-node', '');
+          if (id === from) node.setAttribute('data-relationship-preview-source', '');
+          if (id === to) node.setAttribute('data-relationship-preview-target', '');
+        });
+        button.setAttribute('data-preview-active', 'true');
+        if (!chip.hidden && options.direct !== true) chip.setAttribute('data-relationship-previewing', 'true');
+        activeRelationshipPreview = button;
+        renderRelationshipPulse(key);
+        requestLensPlacement();
+      }
+      function syncRelationshipPreview() {
+        var next = pinnedRelationship || focusedRelationship || hoveredRelationship;
+        if (next === activeRelationshipPreview) return;
+        previewRelationship(next, { direct: !!(next && next.hasAttribute('data-relationship-hit-key')) });
+      }
+      function directRelationshipBlocked() {
+        return html.getAttribute('data-embed') === 'true' ||
+          html.getAttribute('data-guide-open') === 'true' ||
+          container.classList.contains('is-panning') ||
+          (activeIds.length > 0 && !pinnedRelationshipKey) ||
+          svg.hasAttribute('data-story-active') ||
+          svg.hasAttribute('data-route-picking') ||
+          svg.hasAttribute('data-route-active') ||
+          svg.hasAttribute('data-lens-active') ||
+          svg.hasAttribute('data-chapter-preview');
+      }
+      function scheduleDirectRelationshipPreview(target) {
+        if (directPreviewTimer) window.clearTimeout(directPreviewTimer);
+        if (pinnedRelationshipKey) return;
+        directPreviewTimer = window.setTimeout(function () {
+          directPreviewTimer = null;
+          if (pinnedRelationshipKey || hoveredRelationship !== target || directRelationshipBlocked()) return;
+          previewRelationship(target, { direct: true });
+        }, reducedMotionQuery && reducedMotionQuery.matches ? 0 : 90);
+      }
+      function relationshipHitTarget(key) {
+        return relationshipHitTargets.find(function (target) {
+          return target.getAttribute('data-relationship-key') === key;
+        }) || null;
+      }
+      function revealPinnedRelationship(record) {
+        function reveal() {
+          if (!record || pinnedRelationshipKey !== record.key) return true;
+          if (!Archify.view || typeof Archify.view.reveal !== 'function') return false;
+          Archify.view.reveal([record.from, record.to], { reason: 'relationship-direct' });
+          return true;
+        }
+        if (!reveal()) requestAnimationFrame(reveal);
+      }
+      function inspectRelationship(key, options) {
+        options = options || {};
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (directPreviewTimer) window.clearTimeout(directPreviewTimer);
+        directPreviewTimer = null;
+        hoveredRelationship = null;
+        focusedRelationship = null;
+        if (pinnedRelationshipKey === key) {
+          if (options.toggle === false) return true;
+          clear({ updateUrl: options.updateUrl !== false });
+          return true;
+        }
+        var record = relationshipRecordForKey(key);
+        if (!record) return false;
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        set(record.from, { toggle: false, updateUrl: false });
+        var row = Array.prototype.slice.call(relationshipList.querySelectorAll('[data-relationship-key]')).find(function (candidate) {
+          return candidate.getAttribute('data-relationship-key') === key;
+        });
+        if (!row) return false;
+        previewRelationship(row);
+        pinnedRelationship = row;
+        pinnedRelationshipKey = key;
+        svg.setAttribute('data-relationship-pin-active', key);
+        var target = relationshipHitTarget(key);
+        if (target) target.setAttribute('aria-pressed', 'true');
+        renderRelationshipCopyAction();
+        summary.textContent = viewerText('viewer.passport.relationship.pinned', {
+          from: record.fromLabel,
+          to: record.toLabel,
+          label: record.label
+        });
+        revealPinnedRelationship(record);
+        if (options.updateUrl !== false && record.id) {
+          try { history.replaceState(null, '', location.pathname + location.search + '#relation=' + encodeURIComponent(record.id)); } catch (_) {}
+        }
+        return true;
+      }
+      function inspectRelationshipById(id, options) {
+        var record = relationshipHitRecords().find(function (item) { return item.id === id; });
+        return record ? inspectRelationship(record.key, options) : false;
+      }
+      function installRelationshipHitTargets() {
+        if (html.getAttribute('data-embed') === 'true') return 0;
+        var records = relationshipHitRecords();
+        if (!records.length) return 0;
+        relationshipHitOverlay = document.createElementNS(svgNamespace, 'g');
+        relationshipHitOverlay.setAttribute('class', 'relationship-hit-overlay');
+        relationshipHitOverlay.setAttribute('data-relationship-hit-overlay', '');
+        relationshipHitOverlay.setAttribute('role', 'group');
+        relationshipHitOverlay.setAttribute('aria-label', viewerText('viewer.passport.relationship.explorer'));
+        var relationshipHelp = document.createElementNS(svgNamespace, 'desc');
+        relationshipHelp.id = 'archify-relationship-help';
+        relationshipHelp.textContent = viewerText('viewer.passport.relationship.help');
+        relationshipHitOverlay.appendChild(relationshipHelp);
+        records.forEach(function (record, index) {
+          var target = document.createElementNS(svgNamespace, 'g');
+          target.setAttribute('class', 'relationship-hit-target');
+          target.setAttribute('data-relationship-hit-key', record.key);
+          target.setAttribute('data-relationship-key', record.key);
+          target.setAttribute('data-relationship-from', record.from);
+          target.setAttribute('data-relationship-to', record.to);
+          if (record.id) target.setAttribute('data-relationship-id', record.id);
+          target.setAttribute('role', 'button');
+          target.setAttribute('tabindex', index === 0 ? '0' : '-1');
+          target.setAttribute('aria-pressed', 'false');
+          target.setAttribute('aria-describedby', relationshipHelp.id);
+          var description = viewerText('viewer.passport.relationship.inspect', {
+            index: index + 1,
+            total: records.length,
+            from: record.fromLabel,
+            to: record.toLabel,
+            label: record.label
+          });
+          target.setAttribute('aria-label', description);
+          var title = document.createElementNS(svgNamespace, 'title');
+          title.textContent = record.fromLabel + ' \u2192 ' + record.toLabel + ' \u00b7 ' + record.label;
+          target.appendChild(title);
+          record.shapes.forEach(function (shape) {
+            target.appendChild(relationshipHitGeometry(shape));
+            target.appendChild(relationshipHitGeometry(shape, 'relationship-focus-rail'));
+          });
+          if (target.childNodes.length > 1) {
+            relationshipHitTargets.push(target);
+            relationshipHitOverlay.appendChild(target);
+          }
+        });
+        if (!relationshipHitTargets.length) return 0;
+        var firstNode = svg.querySelector('[data-node-id]');
+        var nodeLayer = firstNode;
+        while (nodeLayer && nodeLayer.parentNode && nodeLayer.parentNode !== svg) nodeLayer = nodeLayer.parentNode;
+        if (nodeLayer && nodeLayer.parentNode === svg) svg.insertBefore(relationshipHitOverlay, nodeLayer);
+        else svg.appendChild(relationshipHitOverlay);
+
+        relationshipHitOverlay.addEventListener('pointerdown', function (event) {
+          if (event.target.closest('[data-relationship-hit-key]')) event.stopPropagation();
+        });
+        relationshipHitOverlay.addEventListener('pointerover', function (event) {
+          if (event.pointerType === 'touch') return;
+          if (finePointerQuery && !finePointerQuery.matches) return;
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target || directRelationshipBlocked() || pinnedRelationshipKey) return;
+          if (event.relatedTarget && target.contains(event.relatedTarget)) return;
+          hoveredRelationship = target;
+          scheduleDirectRelationshipPreview(target);
+        });
+        relationshipHitOverlay.addEventListener('pointerout', function (event) {
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target || (event.relatedTarget && target.contains(event.relatedTarget))) return;
+          if (hoveredRelationship === target) hoveredRelationship = null;
+          syncRelationshipPreview();
+        });
+        relationshipHitOverlay.addEventListener('focusin', function (event) {
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target || directRelationshipBlocked()) return;
+          focusedRelationship = target;
+          if (!pinnedRelationshipKey) previewRelationship(target, { direct: true });
+        });
+        relationshipHitOverlay.addEventListener('focusout', function (event) {
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target || (event.relatedTarget && target.contains(event.relatedTarget))) return;
+          if (focusedRelationship === target) focusedRelationship = null;
+          syncRelationshipPreview();
+        });
+        relationshipHitOverlay.addEventListener('click', function (event) {
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target || directRelationshipBlocked()) return;
+          event.preventDefault();
+          event.stopPropagation();
+          focusedRelationship = null;
+          hoveredRelationship = null;
+          inspectRelationship(target.getAttribute('data-relationship-key'));
+        });
+        relationshipHitOverlay.addEventListener('keydown', function (event) {
+          var target = event.target.closest('[data-relationship-hit-key]');
+          if (!target) return;
+          if (event.key === 'Escape' && pinnedRelationshipKey) {
+            event.preventDefault();
+            clear({ updateUrl: false });
+            return;
+          }
+          if (event.key === 'Enter' || event.key === ' ') {
+            event.preventDefault();
+            focusedRelationship = null;
+            hoveredRelationship = null;
+            inspectRelationship(target.getAttribute('data-relationship-key'));
+            return;
+          }
+          if (event.key !== 'ArrowRight' && event.key !== 'ArrowLeft' && event.key !== 'ArrowDown' && event.key !== 'ArrowUp' && event.key !== 'Home' && event.key !== 'End') return;
+          var index = relationshipHitTargets.indexOf(target);
+          if (event.key === 'Home') index = 0;
+          else if (event.key === 'End') index = relationshipHitTargets.length - 1;
+          else if (event.key === 'ArrowRight' || event.key === 'ArrowDown') index = (index + 1) % relationshipHitTargets.length;
+          else index = (index - 1 + relationshipHitTargets.length) % relationshipHitTargets.length;
+          event.preventDefault();
+          relationshipHitTargets.forEach(function (item, itemIndex) { item.setAttribute('tabindex', itemIndex === index ? '0' : '-1'); });
+          try { relationshipHitTargets[index].focus({ preventScroll: true }); }
+          catch (_) { try { relationshipHitTargets[index].focus(); } catch (_) {} }
+        });
+        return relationshipHitTargets.length;
+      }
+      function renderRelationshipLens(id, byId) {
+        hoveredRelationship = null;
+        focusedRelationship = null;
+        clearRelationshipPreview({ clearPin: true });
+        renderPassport(id, byId[id]);
+        var relationships = relationshipsFor(id, byId);
+        chip.removeAttribute('data-relations-expanded');
+        relationsBtn.setAttribute('aria-expanded', 'false');
+        relationsBtn.textContent = viewerCount('viewer.passport.relationship.count', relationships.length);
+        relationsBtn.setAttribute('aria-label', viewerCount('viewer.passport.relationship.show', relationships.length));
+        var counts = { out: 0, in: 0, loop: 0 };
+        relationships.forEach(function (relationship) { counts[relationship.direction] += 1; });
+        summary.textContent = viewerText('viewer.passport.relationship.summary', {
+          out: counts.out,
+          in: counts.in,
+          loops: counts.loop ? viewerText('viewer.passport.relationship.loops', { count: counts.loop }) : ''
+        });
+        renderReachabilityControls(id);
+        relationshipList.textContent = '';
+        if (!relationships.length) {
+          var empty = document.createElement('p');
+          empty.className = 'relationship-lens-empty';
+          empty.textContent = viewerText('viewer.passport.relationship.none');
+          relationshipList.appendChild(empty);
+          return;
+        }
+
+        [
+          { id: 'out', label: viewerText('viewer.passport.relationship.group.out') },
+          { id: 'in', label: viewerText('viewer.passport.relationship.group.in') },
+          { id: 'loop', label: viewerText('viewer.passport.relationship.group.loop') }
+        ].forEach(function (group) {
+          var items = relationships.filter(function (relationship) { return relationship.direction === group.id; });
+          if (!items.length) return;
+          var section = document.createElement('div');
+          section.className = 'relationship-lens-group';
+          var heading = document.createElement('span');
+          heading.className = 'relationship-lens-group-title';
+          heading.textContent = group.label + ' · ' + items.length;
+          section.appendChild(heading);
+          items.forEach(function (relationship) {
+            var button = document.createElement('button');
+            button.type = 'button';
+            button.className = 'relationship-lens-row';
+            button.setAttribute('data-direction', relationship.direction);
+            button.setAttribute('data-relationship-target', relationship.neighborId);
+            button.setAttribute('data-relationship-key', relationship.key);
+            button.setAttribute('data-relationship-from', relationship.from);
+            button.setAttribute('data-relationship-to', relationship.to);
+            if (relationship.id) button.setAttribute('data-relationship-id', relationship.id);
+            button.setAttribute('aria-label', viewerText('viewer.passport.relationship.row', {
+              group: group.label,
+              relationship: relationship.label,
+              neighbor: relationship.neighborLabel
+            }));
+            var direction = document.createElement('span');
+            direction.className = 'relationship-lens-direction';
+            direction.setAttribute('aria-hidden', 'true');
+            direction.textContent = viewerText(relationship.direction === 'out'
+              ? 'viewer.passport.relationship.direction.out'
+              : relationship.direction === 'in'
+                ? 'viewer.passport.relationship.direction.in'
+                : 'viewer.passport.relationship.direction.loop');
+            var target = document.createElement('strong');
+            target.textContent = relationship.neighborLabel;
+            var relation = document.createElement('small');
+            relation.textContent = relationship.label;
+            button.appendChild(direction);
+            button.appendChild(target);
+            button.appendChild(relation);
+            section.appendChild(button);
+          });
+          relationshipList.appendChild(section);
+        });
+      }
+      var lensFrame = 0;
+      function placeRelationshipLens() {
+        lensFrame = 0;
+        if (chip.hidden || activeIds.length !== 1) return;
+        var node = svg.querySelector('[data-node-id="' + activeIds[0] + '"]');
+        if (!node) return;
+        var containerRect = container.getBoundingClientRect();
+        var nodeRect = node.getBoundingClientRect();
+        if (containerRect.bottom <= 0 || containerRect.top >= window.innerHeight) return;
+        var padding = window.innerWidth <= 720 ? 8 : 16;
+        var visibleTop = Math.max(padding, -containerRect.top + padding);
+        var visibleBottom = Math.min(containerRect.height - padding, window.innerHeight - containerRect.top - padding);
+        var maxTop = Math.max(padding, visibleBottom - chip.offsetHeight);
+        var minTop = Math.min(visibleTop, maxTop);
+        var nodeCenter = nodeRect.top - containerRect.top + nodeRect.height / 2;
+        var mobile = window.innerWidth <= 720;
+        var previewingOnMobile = mobile && chip.getAttribute('data-relationship-previewing') === 'true';
+        var compactOnMobile = mobile && chip.getAttribute('data-relations-expanded') !== 'true';
+        var preferred;
+        if (compactOnMobile) {
+          var nodeTop = nodeRect.top - containerRect.top;
+          var nodeBottom = nodeRect.bottom - containerRect.top;
+          var gap = 10;
+          var above = nodeTop - chip.offsetHeight - gap;
+          var below = nodeBottom + gap;
+          if (above >= visibleTop) preferred = above;
+          else if (below + chip.offsetHeight <= visibleBottom - 56) preferred = below;
+          else preferred = nodeCenter < (visibleTop + visibleBottom) / 2
+            ? Math.max(minTop, visibleBottom - chip.offsetHeight - 56)
+            : visibleTop;
+        } else if (previewingOnMobile) {
+          var pinnedTop = visibleTop;
+          var pinnedBottom = Math.max(minTop, visibleBottom - chip.offsetHeight - 56);
+          preferred = nodeCenter < (visibleTop + visibleBottom) / 2 ? pinnedBottom : pinnedTop;
+        } else {
+          preferred = nodeCenter - chip.offsetHeight / 2;
+        }
+        var top = Math.max(minTop, Math.min(maxTop, preferred));
+        var chipRect = chip.getBoundingClientRect();
+        var safeGap = 10;
+        var protectViewerChrome = !mobile || compactOnMobile || previewingOnMobile;
+        var protectedRects = (protectViewerChrome
+          ? [svg.querySelector('[data-legend]'), container.querySelector('.diagram-nav')]
+          : [])
+          .filter(function (element) {
+            if (!element || element.hidden) return false;
+            var style = window.getComputedStyle(element);
+            return style.display !== 'none' && style.visibility !== 'hidden';
+          })
+          .map(function (element) { return element.getBoundingClientRect(); })
+          .filter(function (rect) {
+            return rect.width > 0 && rect.height > 0 &&
+              chipRect.left < rect.right + safeGap && chipRect.right > rect.left - safeGap;
+          });
+        if (protectedRects.length) {
+          var candidates = [top, minTop, maxTop];
+          protectedRects.forEach(function (rect) {
+            candidates.push(
+              rect.top - containerRect.top - chip.offsetHeight - safeGap,
+              rect.bottom - containerRect.top + safeGap
+            );
+          });
+          var valid = candidates.map(function (candidate) {
+            return Math.max(minTop, Math.min(maxTop, candidate));
+          }).filter(function (candidate, index, all) {
+            if (all.indexOf(candidate) !== index) return false;
+            var candidateTop = containerRect.top + candidate;
+            var candidateBottom = candidateTop + chip.offsetHeight;
+            return protectedRects.every(function (rect) {
+              return candidateBottom <= rect.top - safeGap || candidateTop >= rect.bottom + safeGap;
+            });
+          });
+          valid.sort(function (first, second) {
+            return Math.abs(first - preferred) - Math.abs(second - preferred);
+          });
+          if (valid.length) top = valid[0];
+        }
+        chip.style.top = Math.round(top) + 'px';
+        if (Archify.radar && typeof Archify.radar.sync === 'function') Archify.radar.sync();
+      }
+      function requestLensPlacement() {
+        if (lensFrame) return;
+        lensFrame = requestAnimationFrame(placeRelationshipLens);
+      }
+      function clear(options) {
+        options = options || {};
+        var restoreNode = options.restoreFocus === true && activeIds.length === 1
+          ? svg.querySelector('[data-node-id="' + activeIds[0] + '"]')
+          : null;
+        clearReachability({ updateUrl: false });
+        if (Archify.intentTrace && typeof Archify.intentTrace.clear === 'function') {
+          Archify.intentTrace.clear({ announce: false });
+        }
+        hoveredRelationship = null;
+        focusedRelationship = null;
+        clearRelationshipPreview({ clearPin: true });
+        activeIds = [];
+        svg.removeAttribute('data-focus-active');
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-focus-match');
+          node.removeAttribute('data-focus-selected');
+          node.setAttribute('aria-pressed', 'false');
+        });
+        edges().forEach(function (edge) { edge.removeAttribute('data-focus-match'); });
+        chip.hidden = true;
+        label.textContent = '';
+        detail.textContent = '';
+        detail.hidden = true;
+        kind.textContent = '';
+        kind.hidden = true;
+        context.textContent = '';
+        context.hidden = true;
+        tag.textContent = '';
+        tag.hidden = true;
+        semanticId.textContent = '';
+        semanticId.hidden = true;
+        evidence.hidden = true;
+        evidenceLinks.textContent = '';
+        repositoryLink.removeAttribute('href');
+        repositoryLink.textContent = '';
+        summary.textContent = '';
+        reachSection.hidden = true;
+        upstreamCount.textContent = '0';
+        downstreamCount.textContent = '0';
+        upstreamBtn.disabled = true;
+        downstreamBtn.disabled = true;
+        relationshipList.textContent = '';
+        copyBtn.textContent = viewerText('viewer.passport.copy');
+        copyBtn.setAttribute('aria-label', viewerText('viewer.passport.copy.focus'));
+        relationsBtn.textContent = viewerText('viewer.passport.relations');
+        relationsBtn.setAttribute('aria-label', viewerText('viewer.passport.relations.show'));
+        relationsBtn.setAttribute('aria-expanded', 'false');
+        chip.removeAttribute('data-relations-expanded');
+        chip.style.removeProperty('top');
+        if (options.preserveView !== true && Archify.view && typeof Archify.view.reset === 'function') {
+          Archify.view.reset({ automatic: true });
+        }
+        if (options.updateUrl !== false) {
+          try { history.replaceState(null, '', location.pathname + location.search); } catch (_) {}
+        }
+        if (restoreNode) {
+          try { restoreNode.focus({ preventScroll: true }); }
+          catch (_) { try { restoreNode.focus(); } catch (_) {} }
+        }
+      }
+
+      function setMany(ids, options) {
+        options = options || {};
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (Archify.semanticLens && Archify.semanticLens.active()) {
+          Archify.semanticLens.clear({ updateUrl: false, preserveView: true, closePanel: true });
+        }
+        if (options.preserveRoute !== true && Archify.routeProbe && typeof Archify.routeProbe.clear === 'function') {
+          Archify.routeProbe.clear({ updateUrl: false, restoreFocus: false });
+        }
+        var nodeList = nodes();
+        var byId = {};
+        nodeList.forEach(function (node) { byId[node.getAttribute('data-node-id')] = node; });
+        var normalized = [];
+        (ids || []).forEach(function (id) {
+          if (byId[id] && normalized.indexOf(id) === -1) normalized.push(id);
+        });
+        if (!normalized.length) return false;
+        if (normalized.length === activeIds.length && normalized.every(function (id, index) { return activeIds[index] === id; }) && options.toggle !== false) {
+          clear();
+          return true;
+        }
+
+        clear({ updateUrl: false, preserveView: true });
+        activeIds = normalized;
+        var selected = {};
+        var related = {};
+        var seenEdges = {};
+        var matchedEdges = 0;
+        normalized.forEach(function (id) { selected[id] = true; related[id] = true; });
+        var selectionMode = options.mode === 'selection' || normalized.length > 1;
+
+        edges().forEach(function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          var match = selectionMode ? selected[from] && selected[to] : selected[from] || selected[to];
+          if (!match) return;
+          edge.setAttribute('data-focus-match', '');
+          if (!selectionMode) { related[from] = true; related[to] = true; }
+          var edgeKey = edge.getAttribute('data-edge-key') || (from + '\u0000' + to + '\u0000' + (edge.getAttribute('data-edge-label') || ''));
+          if (!seenEdges[edgeKey]) { seenEdges[edgeKey] = true; matchedEdges += 1; }
+        });
+        nodeList.forEach(function (node) {
+          var nodeId = node.getAttribute('data-node-id');
+          if (related[nodeId]) node.setAttribute('data-focus-match', '');
+          if (selected[nodeId]) {
+            node.setAttribute('data-focus-selected', '');
+            node.setAttribute('aria-pressed', 'true');
+          }
+        });
+        svg.setAttribute('data-focus-active', normalized.join(' '));
+        var defaultLabel = normalized.length === 1
+          ? nodeLabel(byId[normalized[0]], normalized[0])
+          : viewerText('viewer.guided.chapter.selectedNodes', { count: normalized.length });
+        label.textContent = options.label || defaultLabel;
+        chip.hidden = options.hideChip === true || normalized.length !== 1 || selectionMode;
+        if (!chip.hidden) {
+          renderRelationshipLens(normalized[0], byId);
+          requestLensPlacement();
+        }
+        if (options.updateUrl !== false) {
+          var key = options.urlKey || 'focus';
+          var value = options.urlValue || normalized[0];
+          try { history.replaceState(null, '', location.pathname + location.search + '#' + key + '=' + encodeURIComponent(value)); } catch (_) {}
+        }
+        return true;
+      }
+
+      function set(id, options) {
+        options = options || {};
+        options.mode = 'neighborhood';
+        return setMany([id], options);
+      }
+
+      function fallbackCopy(value) {
+        var field = document.createElement('textarea');
+        field.value = value;
+        field.setAttribute('readonly', '');
+        field.style.position = 'fixed';
+        field.style.opacity = '0';
+        document.body.appendChild(field);
+        field.select();
+        var copied = false;
+        try { copied = document.execCommand('copy'); } catch (_) {}
+        field.remove();
+        return copied;
+      }
+
+      function copyFocusLink() {
+        if (activeIds.length !== 1) return Promise.resolve(false);
+        var record = pinnedRelationshipRecord();
+        var relationId = record && record.id;
+        var value = location.href.replace(/#.*$/, '') + (relationId
+          ? '#relation=' + encodeURIComponent(relationId)
+          : '#focus=' + encodeURIComponent(activeIds[0]) + (reachabilityMode ? '&reach=' + reachabilityMode : ''));
+        var copy = navigator.clipboard && typeof navigator.clipboard.writeText === 'function'
+          ? navigator.clipboard.writeText(value).then(function () { return true; }).catch(function () { return fallbackCopy(value); })
+          : Promise.resolve(fallbackCopy(value));
+        return copy.then(function (copied) {
+          copyBtn.textContent = viewerText(copied ? 'viewer.common.copied' : 'viewer.common.copyFailed');
+          copyBtn.setAttribute('aria-label', copied
+            ? viewerText(relationId ? 'viewer.passport.copy.pinned.success' : 'viewer.passport.copy.focused.success')
+            : viewerText(relationId ? 'viewer.passport.copy.pinned.failed' : 'viewer.passport.copy.focused.failed'));
+          window.setTimeout(function () {
+            renderRelationshipCopyAction();
+          }, 1600);
+          return copied;
+        });
+      }
+
+      svg.addEventListener('click', function (event) {
+        if (container.getAttribute('data-just-panned') === 'true') return;
+        var node = event.target.closest('[data-node-id]');
+        if (node) {
+          var id = node.getAttribute('data-node-id');
+          set(id);
+          if (activeIds.indexOf(id) !== -1 && Archify.view && typeof Archify.view.reveal === 'function') {
+            Archify.view.reveal([id], { includeNeighbors: true, reason: 'focus' });
+          }
+        }
+        else if (activeIds.length) clear();
+      });
+      svg.addEventListener('keydown', function (event) {
+        var node = event.target.closest('[data-node-id]');
+        if (!node || (event.key !== 'Enter' && event.key !== ' ')) return;
+        event.preventDefault();
+        var id = node.getAttribute('data-node-id');
+        set(id);
+        if (activeIds.indexOf(id) !== -1 && Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal([id], { includeNeighbors: true, reason: 'focus' });
+        }
+      });
+      clearBtn.addEventListener('click', function () { clear({ restoreFocus: true }); });
+      copyBtn.addEventListener('click', copyFocusLink);
+      upstreamBtn.addEventListener('click', function () { applyReachability('upstream'); });
+      downstreamBtn.addEventListener('click', function () { applyReachability('downstream'); });
+      relationsBtn.addEventListener('click', function () {
+        var expanded = chip.getAttribute('data-relations-expanded') === 'true';
+        if (expanded) chip.removeAttribute('data-relations-expanded');
+        else chip.setAttribute('data-relations-expanded', 'true');
+        relationsBtn.setAttribute('aria-expanded', expanded ? 'false' : 'true');
+        relationsBtn.setAttribute('aria-label', viewerText(expanded
+          ? 'viewer.passport.relations.show'
+          : 'viewer.passport.relations.hide'));
+        requestLensPlacement();
+      });
+      relationshipList.addEventListener('click', function (event) {
+        var button = event.target.closest('[data-relationship-target]');
+        if (!button) return;
+        var id = button.getAttribute('data-relationship-target');
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        set(id, { toggle: false });
+        if (Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal([id], { includeNeighbors: true, reason: 'relationship' });
+        }
+        var node = svg.querySelector('[data-node-id="' + id + '"]');
+        if (node) {
+          try { node.focus({ preventScroll: true }); } catch (_) { try { node.focus(); } catch (_) {} }
+        }
+      });
+      relationshipList.addEventListener('pointerover', function (event) {
+        if (event.pointerType === 'touch') return;
+        if (finePointerQuery && !finePointerQuery.matches) return;
+        var button = event.target.closest('[data-relationship-key]');
+        if (!button || !relationshipList.contains(button)) return;
+        if (event.relatedTarget && button.contains(event.relatedTarget)) return;
+        hoveredRelationship = button;
+        syncRelationshipPreview();
+      });
+      relationshipList.addEventListener('pointerout', function (event) {
+        var button = event.target.closest('[data-relationship-key]');
+        if (!button || (event.relatedTarget && button.contains(event.relatedTarget))) return;
+        if (hoveredRelationship === button) hoveredRelationship = null;
+        syncRelationshipPreview();
+      });
+      relationshipList.addEventListener('focusin', function (event) {
+        var button = event.target.closest('[data-relationship-key]');
+        if (!button) return;
+        focusedRelationship = button;
+        syncRelationshipPreview();
+      });
+      relationshipList.addEventListener('focusout', function (event) {
+        var button = event.target.closest('[data-relationship-key]');
+        if (!button || (event.relatedTarget && button.contains(event.relatedTarget))) return;
+        if (focusedRelationship === button) focusedRelationship = null;
+        syncRelationshipPreview();
+      });
+      relationshipList.addEventListener('keydown', function (event) {
+        if (event.key !== 'ArrowDown' && event.key !== 'ArrowUp' && event.key !== 'Home' && event.key !== 'End') return;
+        var buttons = Array.prototype.slice.call(relationshipList.querySelectorAll('[data-relationship-target]'));
+        if (!buttons.length) return;
+        var index = buttons.indexOf(document.activeElement);
+        if (event.key === 'Home') index = 0;
+        else if (event.key === 'End') index = buttons.length - 1;
+        else if (event.key === 'ArrowDown') index = Math.min(buttons.length - 1, Math.max(0, index + 1));
+        else index = Math.max(0, index < 0 ? 0 : index - 1);
+        event.preventDefault();
+        buttons[index].focus();
+      });
+      document.addEventListener('click', function (event) {
+        var target = event.target;
+        if (chip.hidden || !target || typeof target.closest !== 'function' || chip.contains(target)) return;
+        if (container.getAttribute('data-just-panned') === 'true') return;
+        if (target.closest('[data-node-id], [data-relationship-hit-key], .overview-map')) return;
+        clear();
+      }, true);
+      window.addEventListener('scroll', requestLensPlacement, { passive: true });
+      window.addEventListener('resize', requestLensPlacement);
+      container.addEventListener('scroll', requestLensPlacement, { passive: true });
+      document.addEventListener('visibilitychange', function () {
+        if (document.hidden) removeRelationshipPulse();
+      });
+      function syncRelationshipMotionPreference(event) {
+        if (event.matches) removeRelationshipPulse();
+      }
+      if (reducedMotionQuery) {
+        if (typeof reducedMotionQuery.addEventListener === 'function') {
+          reducedMotionQuery.addEventListener('change', syncRelationshipMotionPreference);
+        } else if (typeof reducedMotionQuery.addListener === 'function') {
+          reducedMotionQuery.addListener(syncRelationshipMotionPreference);
+        }
+      }
+
+      installRelationshipHitTargets();
+
+      function syncFocusFromHash() {
+        try {
+          var params = new URLSearchParams(location.hash.replace(/^#/, ''));
+          var relation = params.get('relation');
+          var initial = params.get('focus');
+          var reach = params.get('reach');
+          if (relation) {
+            if (html.getAttribute('data-embed') === 'true' ||
+                !inspectRelationshipById(relation, { updateUrl: false, toggle: false })) clear({ updateUrl: false });
+          }
+          else if (initial) {
+            if (set(initial, { updateUrl: false, toggle: false }) &&
+                (reach === 'upstream' || reach === 'downstream')) {
+              applyReachability(reach, { updateUrl: false, toggle: false, reveal: false });
+            }
+          }
+          else if (!params.get('view')) clear({ updateUrl: false });
+        } catch (_) {}
+      }
+
+      window.addEventListener('hashchange', syncFocusFromHash);
+      syncFocusFromHash();
+
+      return {
+        set: set,
+        setMany: setMany,
+        clear: clear,
+        copyLink: copyFocusLink,
+        reach: applyReachability,
+        clearReach: clearReachability,
+        reachabilitySnapshot: reachabilitySnapshot,
+        inspectRelationship: inspectRelationship,
+        inspectRelationshipById: inspectRelationshipById,
+        reposition: requestLensPlacement,
+        relationship: function () {
+          var record = pinnedRelationshipRecord();
+          return record ? { id: record.id || null, key: record.key, from: record.from, to: record.to, label: record.label } : null;
+        },
+        reachability: function () {
+          return activeReachability ? {
+            direction: activeReachability.direction,
+            originId: activeReachability.originId,
+            nodeIds: activeReachability.nodeIds.slice(),
+            edgeKeys: activeReachability.edgeKeys.slice(),
+            maxDepth: activeReachability.maxDepth
+          } : null;
+        },
+        active: function () { return activeIds.length === 0 ? null : (activeIds.length === 1 ? activeIds[0] : activeIds.slice()); }
+      };
+    })();
+
+    /* ============================================================
+       Intent Trace — temporary one-hop topology before durable focus.
+       Fine-pointer hover and keyboard focus share the same stable-ID preview;
+       touch continues directly to the existing click-to-focus contract.
+       ============================================================ */
+    Archify.intentTrace = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector(':scope > svg');
+      var status = document.getElementById('intent-trace-status');
+      var namespace = 'http://www.w3.org/2000/svg';
+      var activeId = null;
+      var hoveredNode = null;
+      var focusedNode = null;
+      var enterTimer = null;
+
+      function nodes() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-node-id]'));
+      }
+      function edges() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'));
+      }
+      function nodeLabel(node, fallback) {
+        return node.getAttribute('data-node-label') ||
+          (node.getAttribute('aria-label') || fallback).replace(/^Focus\s+/, '').split(',')[0];
+      }
+      function finePointer() {
+        return !window.matchMedia || window.matchMedia('(hover: hover) and (pointer: fine)').matches;
+      }
+      function reducedMotion() {
+        return !!(window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches);
+      }
+      function blocked() {
+        return html.getAttribute('data-embed') === 'true' ||
+          html.getAttribute('data-guide-open') === 'true' ||
+          container.classList.contains('is-panning') ||
+          svg.hasAttribute('data-lens-active') ||
+          svg.hasAttribute('data-story-active') ||
+          svg.hasAttribute('data-relationship-preview-active') ||
+          !!(Archify.routeProbe && typeof Archify.routeProbe.active === 'function' && Archify.routeProbe.active()) ||
+          !!(Archify.focus && typeof Archify.focus.active === 'function' && Archify.focus.active());
+      }
+      function edgeShapes(edge) {
+        if (/^(path|line|polyline)$/i.test(edge.tagName)) return [edge];
+        return Array.prototype.slice.call(edge.querySelectorAll('path, line, polyline'));
+      }
+      function removeOverlay() {
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-intent-trace-overlay]'), function (overlay) {
+          overlay.remove();
+        });
+      }
+      function clear(options) {
+        options = options || {};
+        if (enterTimer) window.clearTimeout(enterTimer);
+        enterTimer = null;
+        activeId = null;
+        svg.removeAttribute('data-intent-trace-active');
+        removeOverlay();
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-intent-trace-match');
+          node.removeAttribute('data-intent-trace-selected');
+        });
+        edges().forEach(function (edge) { edge.removeAttribute('data-intent-trace-match'); });
+        if (options.announce !== false) status.textContent = '';
+      }
+      function traceGeometry(shape, direction) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-labelledby');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.removeAttribute('data-intent-trace-match');
+        clone.removeAttribute('data-intent-trace-selected');
+        clone.setAttribute('class', 'intent-trace-flow');
+        clone.setAttribute('data-direction', direction);
+        clone.setAttribute('pathLength', '1');
+        return clone;
+      }
+      function show(id, options) {
+        options = options || {};
+        if (!id || blocked()) {
+          clear({ announce: false });
+          return false;
+        }
+        if (activeId === id) return true;
+        clear({ announce: false });
+        var nodeList = nodes();
+        var edgeList = edges();
+        var byId = {};
+        nodeList.forEach(function (node) { byId[node.getAttribute('data-node-id')] = node; });
+        var selected = byId[id];
+        if (!selected) return false;
+
+        var overlay = document.createElementNS(namespace, 'g');
+        overlay.setAttribute('class', 'intent-trace-overlay');
+        overlay.setAttribute('data-intent-trace-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        var related = {};
+        var seen = {};
+        var counts = { out: 0, in: 0, loop: 0 };
+        related[id] = true;
+
+        edgeList.forEach(function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          if (from !== id && to !== id) return;
+          var direction = from === id && to === id ? 'loop' : (from === id ? 'out' : 'in');
+          var key = edge.getAttribute('data-edge-key') ||
+            (from + '\u0000' + to + '\u0000' + (edge.getAttribute('data-edge-label') || ''));
+          if (!seen[key]) {
+            seen[key] = true;
+            counts[direction] += 1;
+          }
+          related[from] = true;
+          related[to] = true;
+          edge.setAttribute('data-intent-trace-match', '');
+          var wrapper = document.createElementNS(namespace, 'g');
+          if (edge.hasAttribute('transform')) wrapper.setAttribute('transform', edge.getAttribute('transform'));
+          edgeShapes(edge).forEach(function (shape) {
+            wrapper.appendChild(traceGeometry(shape, direction));
+          });
+          if (wrapper.childNodes.length) overlay.appendChild(wrapper);
+        });
+
+        nodeList.forEach(function (node) {
+          var nodeId = node.getAttribute('data-node-id');
+          if (related[nodeId]) node.setAttribute('data-intent-trace-match', '');
+          if (nodeId === id) node.setAttribute('data-intent-trace-selected', '');
+        });
+        if (overlay.childNodes.length) {
+          var firstEdge = edgeList[0];
+          var firstNode = svg.querySelector('[data-node-id]');
+          if (firstEdge && firstEdge.parentNode) firstEdge.parentNode.insertBefore(overlay, firstEdge);
+          else if (firstNode) svg.insertBefore(overlay, firstNode);
+          else svg.appendChild(overlay);
+        }
+        activeId = id;
+        svg.setAttribute('data-intent-trace-active', id);
+        if (options.announce === true) {
+          var total = counts.out + counts.in + counts.loop;
+          status.textContent = viewerText('viewer.intent.summary', {
+            label: nodeLabel(selected, id),
+            out: counts.out,
+            in: counts.in,
+            loops: counts.loop ? viewerText('viewer.intent.loops', { count: counts.loop }) : '',
+            total: total
+          });
+        }
+        return true;
+      }
+      function schedule(node) {
+        if (enterTimer) window.clearTimeout(enterTimer);
+        enterTimer = window.setTimeout(function () {
+          enterTimer = null;
+          if (hoveredNode === node) show(node.getAttribute('data-node-id'), { announce: false });
+        }, reducedMotion() ? 0 : 90);
+      }
+      function sync() {
+        var candidate = focusedNode || hoveredNode;
+        if (!candidate) {
+          clear();
+          return;
+        }
+        show(candidate.getAttribute('data-node-id'), { announce: candidate === focusedNode });
+      }
+
+      svg.addEventListener('pointerover', function (event) {
+        var node = event.target.closest('[data-node-id]');
+        if (!node || !finePointer() || event.pointerType === 'touch') return;
+        if (event.relatedTarget && node.contains(event.relatedTarget)) return;
+        hoveredNode = node;
+        schedule(node);
+      });
+      svg.addEventListener('pointerout', function (event) {
+        var node = event.target.closest('[data-node-id]');
+        if (!node || (event.relatedTarget && node.contains(event.relatedTarget))) return;
+        if (hoveredNode === node) hoveredNode = null;
+        sync();
+      });
+      svg.addEventListener('focusin', function (event) {
+        var node = event.target.closest('[data-node-id]');
+        if (!node) return;
+        focusedNode = node;
+        show(node.getAttribute('data-node-id'), { announce: true });
+      });
+      svg.addEventListener('focusout', function (event) {
+        var node = event.target.closest('[data-node-id]');
+        if (!node || (event.relatedTarget && node.contains(event.relatedTarget))) return;
+        if (focusedNode === node) focusedNode = null;
+        sync();
+      });
+      container.addEventListener('pointerdown', function (event) {
+        if (!event.target.closest('[data-node-id]')) clear({ announce: false });
+      });
+      window.addEventListener('blur', function () { clear({ announce: false }); });
+
+      return {
+        show: show,
+        clear: clear,
+        active: function () { return activeId; }
+      };
+    })();
+
+    Archify.guidedViews = (function () {
+      var data = document.getElementById('archify-guided-views-data');
+      var panel = document.getElementById('guided-views');
+      var prev = document.getElementById('guided-view-prev');
+      var next = document.getElementById('guided-view-next');
+      var all = document.getElementById('guided-view-all');
+      var play = document.getElementById('guided-view-play');
+      var playIcon = document.getElementById('guided-view-play-icon');
+      var playLabel = document.getElementById('guided-view-play-label');
+      var beatLink = document.getElementById('guided-view-beat-link');
+      var beatLinkLabel = document.getElementById('guided-view-beat-link-label');
+      var progressBar = document.getElementById('guided-view-progress-bar');
+      var count = document.getElementById('guided-view-count');
+      var handoffReceipt = document.getElementById('guided-view-handoff');
+      var label = document.getElementById('guided-view-label');
+      var note = document.getElementById('guided-view-note');
+      var trail = document.getElementById('guided-view-trail');
+      var storyCaption = document.getElementById('guided-story-caption');
+      var storyCaptionIndex = document.getElementById('guided-story-caption-index');
+      var storyCaptionRoute = document.getElementById('guided-story-caption-route');
+      var storyCaptionDetail = document.getElementById('guided-story-caption-detail');
+      var storyCaptionNext = document.getElementById('guided-story-caption-next');
+      var storyCaptionNextLabel = document.getElementById('guided-story-caption-next-label');
+      var chapterIndex = document.getElementById('guided-view-index');
+      var chapterList = document.getElementById('guided-view-chapters');
+      var shareCue = document.getElementById('share-chapter-cue');
+      var shareCueState = document.getElementById('share-chapter-state');
+      var shareCueCount = document.getElementById('share-chapter-count');
+      var shareCueLabel = document.getElementById('share-chapter-label');
+      var shareCueNote = document.getElementById('share-chapter-note');
+      var shareCueRoute = document.getElementById('share-chapter-route');
+      var shareCueProgress = document.getElementById('share-chapter-progress-bar');
+      var svg = document.querySelector('.diagram-container svg');
+      var views = [];
+      var activeIndex = -1;
+      var playing = false;
+      var storyBeatTimer = null;
+      var storyBeatIndex = -1;
+      var storyBeatStartedAt = 0;
+      var storyBeatElapsedMs = 0;
+      var storyBeatDwellMs = 0;
+      var storyPlaybackGeneration = 0;
+      var storyFollowGeneration = 0;
+      var storyPlaybackScope = 'story';
+      var storyPlaybackComplete = false;
+      var beatLinkFeedbackTimer = null;
+      var momentRestoreGeneration = 0;
+      var storySteps = [];
+      var storyPulseOwnerToken = 0;
+      var storyPulseGeneration = 0;
+      var autoplayPending = false;
+      var VIEW_INTERVAL_MS = 3200;
+      var STORY_FOLLOW_MIN_DWELL_MS = 1100;
+      var STORY_FOLLOW_DURATION_MS = 320;
+      var chapterButtons = [];
+      var handoffGeneration = 0;
+      var currentHandoff = null;
+      var previewGeneration = 0;
+      var pointerPreviewIntent = null;
+      var focusPreviewIntent = null;
+      var activePreviewIndex = -1;
+      var previewOwnerToken = 0;
+
+      try { views = JSON.parse(data.textContent || '[]'); } catch (_) { views = []; }
+      if (!views.length) return { count: 0, active: function () { return null; } };
+      var canonicalNodeIds = {};
+      Array.prototype.forEach.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+        canonicalNodeIds[node.getAttribute('data-node-id')] = true;
+      });
+      views.forEach(function (view) {
+        var seen = {};
+        view.focus = (view.focus || []).filter(function (id) {
+          if (!canonicalNodeIds[id] || seen[id]) return false;
+          seen[id] = true;
+          return true;
+        });
+      });
+      // Establish the compact cold state before exposing the panel so the
+      // full Director cannot flash during first paint. Hash restoration runs
+      // in the same task and replaces this state before paint when valid.
+      panel.setAttribute('data-active-view', 'all');
+      panel.hidden = false;
+      panel.setAttribute('data-view-interval-ms', String(VIEW_INTERVAL_MS));
+      panel.setAttribute('data-story-follow-min-dwell-ms', String(STORY_FOLLOW_MIN_DWELL_MS));
+      buildChapterIndex();
+
+      function reducedMotion() {
+        return !!(window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches);
+      }
+
+      function findNode(id) {
+        return Array.prototype.find.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+          return node.getAttribute('data-node-id') === id;
+        }) || null;
+      }
+
+      function chapterDelta(previous, destination) {
+        var previousFocus = previous ? previous.focus : [];
+        var destinationFocus = destination ? destination.focus : [];
+        var previousIds = {};
+        var destinationIds = {};
+        previousFocus.forEach(function (id) { previousIds[id] = true; });
+        destinationFocus.forEach(function (id) { destinationIds[id] = true; });
+        return {
+          stay: previousFocus.filter(function (id) { return destinationIds[id]; }),
+          enter: destinationFocus.filter(function (id) { return !previousIds[id]; }),
+          leave: previousFocus.filter(function (id) { return !destinationIds[id]; })
+        };
+      }
+
+      function chapterAnchor(previous, destination, outgoingBeatIndex, delta) {
+        if (!previous || !destination) return '';
+        var stayIds = {};
+        delta.stay.forEach(function (id) { stayIds[id] = true; });
+        var activeBeat = outgoingBeatIndex >= 0 ? previous.focus[outgoingBeatIndex] : '';
+        if (activeBeat && stayIds[activeBeat]) return activeBeat;
+        for (var index = previous.focus.length - 1; index >= 0; index -= 1) {
+          if (stayIds[previous.focus[index]]) return previous.focus[index];
+        }
+        return '';
+      }
+
+      function handoffMotionAllowed() {
+        if (document.hidden || reducedMotion()) return false;
+        if (document.documentElement.getAttribute('data-embed') === 'true') return false;
+        if (window.matchMedia && window.matchMedia('print').matches) return false;
+        return !(Archify.motionGovernor && Archify.motionGovernor.capable && Archify.motionGovernor.isPaused());
+      }
+
+      function classifyHandoff(delta, anchor) {
+        var roles = {};
+        delta.stay.forEach(function (id) { roles[id] = 'stay'; });
+        delta.enter.forEach(function (id) { roles[id] = 'enter'; });
+        delta.leave.forEach(function (id) { roles[id] = 'leave'; });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+          var id = node.getAttribute('data-node-id');
+          var role = roles[id] || '';
+          if (role) node.setAttribute('data-chapter-role', role);
+          else node.removeAttribute('data-chapter-role');
+        });
+        svg.setAttribute('data-chapter-handoff', anchor ? 'anchor' : 'no-anchor');
+        if (anchor) svg.setAttribute('data-chapter-anchor', anchor);
+        else svg.removeAttribute('data-chapter-anchor');
+      }
+
+      function drawHandoffAnchor(id) {
+        var node = findNode(id);
+        if (!node) return null;
+        var box;
+        try { box = node.getBBox(); } catch (_) { return null; }
+        var overlay = document.createElementNS('http://www.w3.org/2000/svg', 'g');
+        var ring = document.createElementNS('http://www.w3.org/2000/svg', 'rect');
+        overlay.setAttribute('class', 'chapter-handoff-overlay');
+        overlay.setAttribute('data-chapter-handoff-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        ring.setAttribute('class', 'chapter-handoff-anchor');
+        ring.setAttribute('x', String(box.x - 8));
+        ring.setAttribute('y', String(box.y - 8));
+        ring.setAttribute('width', String(box.width + 16));
+        ring.setAttribute('height', String(box.height + 16));
+        ring.setAttribute('rx', '10');
+        overlay.appendChild(ring);
+        svg.appendChild(overlay);
+        return overlay;
+      }
+
+      function clearHandoffPresentation() {
+        svg.removeAttribute('data-chapter-handoff');
+        svg.removeAttribute('data-chapter-anchor');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-chapter-handoff-overlay]'), function (overlay) { overlay.remove(); });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-chapter-role]'), function (node) { node.removeAttribute('data-chapter-role'); });
+        if (handoffReceipt) {
+          handoffReceipt.hidden = true;
+          handoffReceipt.textContent = '';
+        }
+      }
+
+      function completeHandoff(handoff, outcome) {
+        if (!handoff || currentHandoff !== handoff) return false;
+        if (handoff.holdTimer) clearTimeout(handoff.holdTimer);
+        handoff.holdTimer = null;
+        currentHandoff = null;
+        clearHandoffPresentation();
+        if (handoff.ownerToken && Archify.motionGovernor) Archify.motionGovernor.release(handoff.ownerToken);
+        handoff.resolve({ id: handoff.id, state: outcome || 'complete', anchor: handoff.anchor || null });
+        syncStoryControlsDisabled();
+        syncChapterPreview();
+        return true;
+      }
+
+      function settleHandoff(reason) {
+        var handoff = currentHandoff;
+        if (!handoff) return false;
+        if (handoff.holdTimer) clearTimeout(handoff.holdTimer);
+        handoff.holdTimer = null;
+        if (handoff.camera && handoff.camera.cancel) handoff.camera.cancel(reason || 'settled', true);
+        else if (Archify.view && Archify.view.reveal) Archify.view.reveal(handoff.focus, { instant: true, reason: reason || 'settled' });
+        completeHandoff(handoff, reason || 'settled');
+        return true;
+      }
+
+      function cancelHandoff(reason) {
+        var handoff = currentHandoff;
+        if (!handoff) return false;
+        if (handoff.holdTimer) clearTimeout(handoff.holdTimer);
+        handoff.holdTimer = null;
+        if (handoff.camera && handoff.camera.cancel) handoff.camera.cancel(reason || 'manual', false);
+        completeHandoff(handoff, reason || 'manual');
+        return true;
+      }
+
+      function afterHandoff(callback) {
+        if (!currentHandoff) { callback(); return; }
+        currentHandoff.finished.then(callback);
+      }
+
+      function beginHandoff(previousIndex, nextIndex, previous, destination, outgoingBeatIndex, reason) {
+        if (!Archify.view || !Archify.view.reveal) return null;
+        if (!previous || previousIndex === nextIndex) {
+          Archify.view.reveal(destination.focus, { reason: reason });
+          return null;
+        }
+        var delta = chapterDelta(previous, destination);
+        var anchor = chapterAnchor(previous, destination, outgoingBeatIndex, delta);
+        if (!handoffMotionAllowed()) {
+          Archify.view.reveal(destination.focus, { instant: true, reason: reason });
+          return null;
+        }
+        var resolver;
+        var handoff = {
+          id: ++handoffGeneration,
+          mode: anchor ? 'holding' : 'no-anchor',
+          anchor: anchor,
+          focus: destination.focus.slice(),
+          holdTimer: null,
+          camera: null,
+          ownerToken: 0,
+          finished: new Promise(function (resolve) { resolver = resolve; }),
+          resolve: resolver
+        };
+        currentHandoff = handoff;
+        classifyHandoff(delta, anchor);
+        if (anchor) {
+          drawHandoffAnchor(anchor);
+          var node = findNode(anchor);
+          var nodeLabel = node ? (node.getAttribute('data-node-label') || anchor) : anchor;
+          handoffReceipt.textContent = viewerText('viewer.guided.handoff', {
+            from: (previousIndex + 1 < 10 ? '0' : '') + (previousIndex + 1),
+            to: (nextIndex + 1 < 10 ? '0' : '') + (nextIndex + 1),
+            label: nodeLabel
+          });
+          handoffReceipt.hidden = false;
+        }
+        if (Archify.motionGovernor) {
+          handoff.ownerToken = Archify.motionGovernor.claim('handoff', function () {
+            if (currentHandoff === handoff) settleHandoff('preempted');
+          });
+        }
+        var startCamera = function () {
+          if (currentHandoff !== handoff) return;
+          handoff.holdTimer = null;
+          handoff.mode = 'settling';
+          svg.setAttribute('data-chapter-handoff', anchor ? 'settling' : 'no-anchor');
+          handoff.camera = Archify.view.reveal(destination.focus, { reason: reason, duration: 420 });
+          if (handoff.camera && handoff.camera.finished) {
+            handoff.camera.finished.then(function (outcome) {
+              if (currentHandoff === handoff) completeHandoff(handoff, outcome && outcome.state || 'complete');
+            });
+          } else {
+            completeHandoff(handoff, 'complete');
+          }
+        };
+        if (anchor) handoff.holdTimer = setTimeout(startCamera, 110);
+        else startCamera();
+        return handoff;
+      }
+
+      function centerChapterButton(button) {
+        if (!button || !chapterList) return false;
+        var target = Math.max(0, button.offsetLeft - (chapterList.clientWidth - button.offsetWidth) / 2);
+        if (typeof chapterList.scrollTo === 'function') chapterList.scrollTo({ left: target, behavior: 'auto' });
+        else chapterList.scrollLeft = target;
+        return true;
+      }
+
+      function focusChapterButton(index) {
+        if (!chapterButtons.length) return false;
+        index = Math.max(0, Math.min(chapterButtons.length - 1, index));
+        chapterButtons.forEach(function (button, buttonIndex) {
+          button.setAttribute('tabindex', buttonIndex === index ? '0' : '-1');
+        });
+        chapterButtons[index].focus();
+        centerChapterButton(chapterButtons[index]);
+        return true;
+      }
+
+      function buildChapterIndex() {
+        chapterButtons = [];
+        chapterList.textContent = '';
+        views.forEach(function (view, index) {
+          var item = document.createElement('li');
+          var button = document.createElement('button');
+          button.type = 'button';
+          button.className = 'guided-view-chapter';
+          button.setAttribute('data-guided-view-id', view.id);
+          button.setAttribute('aria-pressed', 'false');
+          button.setAttribute('tabindex', index === 0 ? '0' : '-1');
+          button.setAttribute('aria-label', viewerText('viewer.guided.chapter.open', {
+            index: index + 1,
+            total: views.length,
+            label: view.label,
+            count: view.focus.length
+          }));
+          button.title = view.label + ' — ' + (view.note || viewerText('viewer.guided.chapter.selectedNodes', { count: view.focus.length }));
+          var position = document.createElement('span');
+          position.className = 'guided-view-chapter-index';
+          position.setAttribute('aria-hidden', 'true');
+          position.textContent = (index + 1 < 10 ? '0' : '') + (index + 1);
+          var title = document.createElement('span');
+          title.className = 'guided-view-chapter-title';
+          title.textContent = view.label;
+          var stops = document.createElement('em');
+          stops.className = 'guided-view-chapter-count';
+          stops.textContent = viewerCount('viewer.guided.chapter.stop', view.focus.length);
+          var delta = document.createElement('span');
+          delta.className = 'guided-view-chapter-delta';
+          delta.hidden = true;
+          delta.setAttribute('aria-hidden', 'true');
+          ['stay', 'enter', 'leave'].forEach(function (kind) {
+            var value = document.createElement('span');
+            value.setAttribute('data-delta-kind', kind);
+            delta.appendChild(value);
+          });
+          button.appendChild(position);
+          button.appendChild(title);
+          button.appendChild(stops);
+          button.appendChild(delta);
+          item.appendChild(button);
+          chapterList.appendChild(item);
+          chapterButtons.push(button);
+        });
+      }
+
+      function syncChapterIndex() {
+        chapterButtons.forEach(function (button, index) {
+          var current = index === activeIndex;
+          var stops = button.querySelector('.guided-view-chapter-count');
+          var deltaLabel = button.querySelector('.guided-view-chapter-delta');
+          var position = activeIndex < 0 ? 'available' : (current ? 'current' : (index < activeIndex ? 'before' : 'after'));
+          button.setAttribute('data-chapter-position', position);
+          button.setAttribute('aria-pressed', current ? 'true' : 'false');
+          button.setAttribute('tabindex', current || (activeIndex < 0 && index === 0) ? '0' : '-1');
+          if (current) {
+            stops.hidden = false;
+            deltaLabel.hidden = true;
+            button.removeAttribute('data-chapter-delta');
+            button.setAttribute('aria-label', viewerText('viewer.guided.chapter.current', {
+              index: index + 1,
+              total: views.length,
+              label: views[index].label,
+              count: views[index].focus.length
+            }));
+            button.title = viewerText('viewer.guided.chapter.current.title', {
+              label: views[index].label,
+              count: views[index].focus.length
+            });
+          } else {
+            var delta = chapterDelta(activeIndex >= 0 ? views[activeIndex] : null, views[index]);
+            var compact = '=' + delta.stay.length + ' +' + delta.enter.length + ' \u2212' + delta.leave.length;
+            var expanded = viewerText('viewer.guided.chapter.delta.expanded', {
+              stay: delta.stay.length,
+              enter: delta.enter.length,
+              leave: delta.leave.length
+            });
+            stops.hidden = true;
+            deltaLabel.hidden = false;
+            deltaLabel.querySelector('[data-delta-kind="stay"]').textContent = '=' + delta.stay.length;
+            deltaLabel.querySelector('[data-delta-kind="enter"]').textContent = '+' + delta.enter.length;
+            deltaLabel.querySelector('[data-delta-kind="leave"]').textContent = '\u2212' + delta.leave.length;
+            button.setAttribute('data-chapter-delta', compact);
+            button.setAttribute('aria-label', viewerText('viewer.guided.chapter.delta.aria', {
+              index: index + 1,
+              total: views.length,
+              label: views[index].label,
+              delta: expanded
+            }));
+            button.title = viewerText('viewer.guided.chapter.delta.title', {
+              label: views[index].label,
+              delta: compact
+            });
+          }
+          if (current) button.setAttribute('aria-current', 'step');
+          else button.removeAttribute('aria-current');
+          if (button.parentElement) button.parentElement.setAttribute('data-chapter-position', position);
+        });
+        if (activeIndex >= 0) centerChapterButton(chapterButtons[activeIndex]);
+      }
+
+      function chapterPreviewBlocked() {
+        if (document.hidden || playing || currentHandoff) return true;
+        if (document.documentElement.getAttribute('data-embed') === 'true') return true;
+        if (window.matchMedia && window.matchMedia('print').matches) return true;
+        if (svg.hasAttribute('data-route-picking') || svg.hasAttribute('data-route-active')) return true;
+        if (svg.hasAttribute('data-lens-active') || svg.hasAttribute('data-legend-preview-active')) return true;
+        if (svg.hasAttribute('data-relationship-preview-active') || svg.hasAttribute('data-intent-trace-active')) return true;
+        return activeIndex < 0 && svg.hasAttribute('data-focus-active');
+      }
+
+      function clearChapterPreviewPresentation() {
+        svg.removeAttribute('data-chapter-preview');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-chapter-preview-role]'), function (node) {
+          node.removeAttribute('data-chapter-preview-role');
+        });
+        chapterButtons.forEach(function (button) { button.removeAttribute('data-preview-active'); });
+        activePreviewIndex = -1;
+        if (previewOwnerToken && Archify.motionGovernor) {
+          var token = previewOwnerToken;
+          previewOwnerToken = 0;
+          Archify.motionGovernor.release(token);
+        }
+      }
+
+      function clearChapterPreview(options) {
+        options = options || {};
+        previewGeneration += 1;
+        if (options.clearIntents !== false) {
+          pointerPreviewIntent = null;
+          focusPreviewIntent = null;
+        }
+        clearChapterPreviewPresentation();
+        return true;
+      }
+
+      function winningChapterPreviewIntent() {
+        return [pointerPreviewIntent, focusPreviewIntent].filter(function (intent) {
+          return intent && intent.index >= 0 && intent.index < views.length && intent.index !== activeIndex;
+        }).sort(function (left, right) { return right.generation - left.generation; })[0] || null;
+      }
+
+      function showChapterPreview(index) {
+        if (index < 0 || index >= views.length || index === activeIndex || chapterPreviewBlocked()) {
+          clearChapterPreviewPresentation();
+          return false;
+        }
+        if (activePreviewIndex === index && svg.getAttribute('data-chapter-preview') === views[index].id) return true;
+        clearChapterPreviewPresentation();
+        var delta = chapterDelta(activeIndex >= 0 ? views[activeIndex] : null, views[index]);
+        var roles = {};
+        delta.stay.forEach(function (id) { roles[id] = 'stay'; });
+        delta.enter.forEach(function (id) { roles[id] = 'enter'; });
+        delta.leave.forEach(function (id) { roles[id] = 'leave'; });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+          var role = roles[node.getAttribute('data-node-id')];
+          if (role) node.setAttribute('data-chapter-preview-role', role);
+        });
+        svg.setAttribute('data-chapter-preview', views[index].id);
+        chapterButtons[index].setAttribute('data-preview-active', 'true');
+        activePreviewIndex = index;
+        if (Archify.motionGovernor && Archify.motionGovernor.capable) {
+          previewOwnerToken = Archify.motionGovernor.claim('chapter-preview', function () {
+            previewOwnerToken = 0;
+            clearChapterPreviewPresentation();
+          });
+        }
+        return true;
+      }
+
+      function syncChapterPreview() {
+        var intent = winningChapterPreviewIntent();
+        if (!intent || chapterPreviewBlocked()) {
+          clearChapterPreviewPresentation();
+          return false;
+        }
+        return showChapterPreview(intent.index);
+      }
+
+      function setChapterPreviewIntent(source, index) {
+        var intent = { index: index, generation: ++previewGeneration };
+        if (source === 'pointer') pointerPreviewIntent = intent;
+        else focusPreviewIntent = intent;
+        if (playing) pausePlayback();
+        return syncChapterPreview();
+      }
+
+      function clearChapterPreviewIntent(source, index) {
+        var intent = source === 'pointer' ? pointerPreviewIntent : focusPreviewIntent;
+        if (intent && (typeof index !== 'number' || intent.index === index)) {
+          if (source === 'pointer') pointerPreviewIntent = null;
+          else focusPreviewIntent = null;
+          previewGeneration += 1;
+        }
+        return syncChapterPreview();
+      }
+
+      function hoverCapable() {
+        return !!(window.matchMedia && window.matchMedia('(hover: hover)').matches);
+      }
+
+      function sharePlaybackRequested() {
+        try { return new URLSearchParams(location.search).get('play') === '1'; }
+        catch (_) { return false; }
+      }
+
+      autoplayPending = sharePlaybackRequested();
+      if (autoplayPending) {
+        document.documentElement.setAttribute('data-share-playback', 'true');
+        setAutoplayState('pending');
+      }
+
+      function setAutoplayState(state) {
+        if (state) panel.setAttribute('data-autoplay', state);
+        else panel.removeAttribute('data-autoplay');
+        renderShareCue();
+      }
+
+      function shareCueStatus(state) {
+        return {
+          pending: viewerText('viewer.guided.state.ready'),
+          playing: viewerText('viewer.guided.state.playing'),
+          complete: viewerText('viewer.guided.state.settled'),
+          interrupted: viewerText('viewer.guided.state.paused'),
+          pinned: viewerText('viewer.guided.state.pinned'),
+          'reduced-motion': viewerText('viewer.guided.state.still')
+        }[state] || viewerText('viewer.guided.state.ready');
+      }
+
+      function shareCueBeatCopy(state, view, stops) {
+        var total = stops.length;
+        var activeStop = storyBeatIndex >= 0 ? stops[storyBeatIndex] : null;
+        if ((state === 'playing' || state === 'interrupted') && activeStop) {
+          return viewerText('viewer.guided.share.step', {
+            index: (storyBeatIndex + 1 < 10 ? '0' : '') + (storyBeatIndex + 1),
+            total: (total < 10 ? '0' : '') + total,
+            label: activeStop.textContent
+          });
+        }
+        if (state === 'pinned' && activeStop) {
+          return storyBeatCopy(storySteps[storyBeatIndex], total);
+        }
+        if (state === 'reduced-motion' && activeStop && hashBeatMatchesCurrent()) {
+          return viewerText('viewer.guided.share.staticMoment', {
+            step: viewerText('viewer.guided.share.step', {
+              index: (storyBeatIndex + 1 < 10 ? '0' : '') + (storyBeatIndex + 1),
+              total: (total < 10 ? '0' : '') + total,
+              label: activeStop.textContent
+            })
+          });
+        }
+        if (state === 'complete') return viewerText('viewer.guided.share.complete', {
+          count: total,
+          note: view.note || viewerText('viewer.guided.share.settled')
+        });
+        if (state === 'reduced-motion') return viewerText('viewer.guided.share.staticPath', { count: total });
+        if (state === 'pending') return viewerText('viewer.guided.share.ready', { count: total });
+        return view.note || viewerText('viewer.guided.chapter.selectedNodes', { count: view.focus.length });
+      }
+
+      function renderShareCue() {
+        if (!shareCue) return;
+        var view = activeIndex >= 0 ? views[activeIndex] : null;
+        var shareMode = document.documentElement.getAttribute('data-share-playback') === 'true';
+        var embedMode = document.documentElement.getAttribute('data-embed') === 'true';
+        var pinnedMode = !shareMode && embedMode && hashBeatMatchesCurrent();
+        if (pinnedMode) document.documentElement.setAttribute('data-share-moment', 'true');
+        else document.documentElement.removeAttribute('data-share-moment');
+        shareCue.hidden = !(embedMode && view && (shareMode || pinnedMode));
+        if (shareCue.hidden) return;
+        var state = pinnedMode ? 'pinned' : (panel.getAttribute('data-autoplay') || 'pending');
+        var stops = Array.prototype.slice.call(trail.querySelectorAll('[data-story-node]'));
+        var route = stops.map(function (stop, index) {
+          if (index === 0) return stop.textContent;
+          var kind = stop.getAttribute('data-story-link');
+          var separator = kind === 'forward' ? '\u2192' : (kind === 'reverse' ? '\u2190' : (kind === 'multiple' ? '\u21c4' : '\u00b7'));
+          return separator + ' ' + stop.textContent;
+        }).join(' ');
+        var beatCopy = shareCueBeatCopy(state, view, stops);
+        shareCue.setAttribute('data-state', state);
+        shareCue.setAttribute('aria-live', state === 'playing' ? 'off' : 'polite');
+        shareCueState.textContent = shareCueStatus(state);
+        shareCueCount.textContent = viewerText('viewer.guided.share.chapter', {
+          index: (activeIndex + 1 < 10 ? '0' : '') + (activeIndex + 1),
+          total: (views.length < 10 ? '0' : '') + views.length
+        });
+        shareCueLabel.textContent = view.label;
+        shareCueNote.textContent = beatCopy;
+        shareCueRoute.textContent = route;
+        shareCue.setAttribute('aria-label', viewerText('viewer.guided.share.aria', {
+          state: shareCueStatus(state),
+          index: activeIndex + 1,
+          total: views.length,
+          label: view.label,
+          beat: beatCopy,
+          route: route
+        }));
+      }
+
+      function setShareCueProgress(fraction) {
+        if (!shareCueProgress) return;
+        shareCueProgress.style.animation = 'none';
+        shareCueProgress.style.setProperty('--guided-progress-start', String(Math.max(0, Math.min(1, fraction))));
+        shareCueProgress.style.transform = 'scaleX(' + Math.max(0, Math.min(1, fraction)) + ')';
+      }
+
+      function startShareCueProgress(fraction, duration) {
+        if (!shareCueProgress) return;
+        setShareCueProgress(fraction || 0);
+        void shareCueProgress.offsetWidth;
+        shareCueProgress.style.animation = 'archify-guided-progress ' + Math.max(1, duration || VIEW_INTERVAL_MS) + 'ms linear forwards';
+      }
+
+      function storyNodeLabel(node, fallback) {
+        if (!node) return fallback;
+        return node.getAttribute('data-node-label') ||
+          (node.getAttribute('aria-label') || fallback).replace(/^Focus\s+/, '');
+      }
+
+      function storyEdgeKey(edge) {
+        return edge.getAttribute('data-edge-key') || (
+          edge.getAttribute('data-edge-from') + '\u0000' +
+          edge.getAttribute('data-edge-to') + '\u0000' +
+          (edge.getAttribute('data-edge-label') || '')
+        );
+      }
+
+      function uniqueStoryEdges(edgeList) {
+        var positions = {};
+        var unique = [];
+        edgeList.forEach(function (edge) {
+          var key = storyEdgeKey(edge);
+          if (!Object.prototype.hasOwnProperty.call(positions, key)) {
+            positions[key] = unique.length;
+            unique.push(edge);
+            return;
+          }
+          var index = positions[key];
+          if (!storyGeometry(unique[index]).length && storyGeometry(edge).length) unique[index] = edge;
+        });
+        return unique;
+      }
+
+      function storyStep(view, index, edgeList, byId) {
+        var id = view.focus[index];
+        var node = byId[id];
+        var previousId = index > 0 ? view.focus[index - 1] : '';
+        var forward = [];
+        var reverse = [];
+        if (previousId) {
+          edgeList.forEach(function (edge) {
+            var from = edge.getAttribute('data-edge-from');
+            var to = edge.getAttribute('data-edge-to');
+            if (from === previousId && to === id) forward.push(edge);
+            else if (from === id && to === previousId) reverse.push(edge);
+          });
+        }
+        forward = uniqueStoryEdges(forward);
+        reverse = uniqueStoryEdges(reverse);
+        var edges = forward.concat(reverse).sort(function (left, right) {
+          return edgeList.indexOf(left) - edgeList.indexOf(right);
+        });
+        var relation = index === 0 ? 'start' : (!edges.length ? 'group' : (
+          edges.length === 1 && forward.length === 1 ? 'forward' :
+          (edges.length === 1 && reverse.length === 1 ? 'reverse' : 'multiple')
+        ));
+        return {
+          index: index,
+          nodeId: id,
+          nodeLabel: storyNodeLabel(byId[id], id),
+          previousId: previousId,
+          previousLabel: previousId ? storyNodeLabel(byId[previousId], previousId) : '',
+          relation: relation,
+          edges: edges,
+          edgeKeys: edges.map(storyEdgeKey),
+          edgeLabels: edges.map(function (edge) { return edge.getAttribute('data-edge-label') || ''; }).filter(function (value, edgeIndex, values) {
+            return value && values.indexOf(value) === edgeIndex;
+          }),
+          responsibility: node ? (node.getAttribute('data-node-sublabel') || '') : '',
+          context: node ? (node.getAttribute('data-node-context') || '') : ''
+        };
+      }
+
+      function storyBeatCopy(step, total) {
+        if (!step) return '';
+        var position = (step.index + 1 < 10 ? '0' : '') + (step.index + 1);
+        var countValue = (total < 10 ? '0' : '') + total;
+        if (step.relation === 'start') return viewerText('viewer.guided.beat.start', { index: position, total: countValue, label: step.nodeLabel });
+        if (step.relation === 'forward') return viewerText('viewer.guided.beat.forward', { index: position, total: countValue, from: step.previousLabel, to: step.nodeLabel });
+        if (step.relation === 'reverse') return viewerText('viewer.guided.beat.reverse', { index: position, total: countValue, from: step.nodeLabel, to: step.previousLabel });
+        if (step.relation === 'multiple') return viewerText('viewer.guided.beat.multiple', { index: position, total: countValue, from: step.previousLabel, to: step.nodeLabel, count: step.edges.length });
+        return viewerText('viewer.guided.beat.group', { index: position, total: countValue, from: step.previousLabel, to: step.nodeLabel });
+      }
+
+      function storyBeatAria(step, total) {
+        var prefix = viewerText('viewer.guided.beat.aria.prefix', { index: step.index + 1, total: total, label: step.nodeLabel });
+        if (step.relation === 'start') return prefix + viewerText('viewer.guided.beat.aria.start');
+        if (step.relation === 'forward') return prefix + viewerText('viewer.guided.beat.aria.forward', { from: step.previousLabel });
+        if (step.relation === 'reverse') return prefix + viewerText('viewer.guided.beat.aria.reverse', { from: step.previousLabel, to: step.nodeLabel });
+        if (step.relation === 'multiple') return prefix + viewerText('viewer.guided.beat.aria.multiple', { from: step.previousLabel, count: step.edges.length });
+        return prefix + viewerText('viewer.guided.beat.aria.group', { from: step.previousLabel });
+      }
+
+      function storyCaptionRouteCopy(step) {
+        if (step.relation === 'start') return step.nodeLabel + ' · ' + viewerText('viewer.guided.caption.start');
+        if (step.relation === 'reverse') return step.previousLabel + ' ← ' + step.nodeLabel;
+        if (step.relation === 'multiple') return step.previousLabel + ' ⇄ ' + step.nodeLabel;
+        if (step.relation === 'group') return step.previousLabel + ' · ' + step.nodeLabel;
+        return step.previousLabel + ' → ' + step.nodeLabel;
+      }
+
+      function storyCaptionDetailCopy(step) {
+        var facts = [];
+        if (step.relation === 'group') facts.push(viewerText('viewer.guided.caption.grouped'));
+        else if (step.edgeLabels.length) facts.push(step.edgeLabels.slice(0, 3).join(' + ') + (step.edgeLabels.length > 3 ? viewerText('viewer.guided.caption.more', { count: step.edgeLabels.length - 3 }) : ''));
+        else if (step.relation === 'reverse') facts.push(viewerText('viewer.guided.caption.reverse'));
+        else if (step.relation === 'multiple') facts.push(viewerText('viewer.guided.caption.relationships', { count: step.edges.length }));
+        else if (step.relation !== 'start') facts.push(viewerText('viewer.guided.caption.relationship'));
+        if (step.relation === 'reverse') facts.push(viewerText('viewer.guided.caption.direction', { from: step.nodeLabel, to: step.previousLabel }));
+        if (step.responsibility) facts.push(step.responsibility);
+        if (step.context) facts.push(step.context);
+        if (!facts.length) facts.push(viewerText('viewer.guided.caption.starting'));
+        return facts.join(' · ');
+      }
+
+      function renderStoryCaption(step, total, nextStep) {
+        if (!storyCaption) return;
+        if (!step) {
+          storyCaption.hidden = true;
+          storyCaption.removeAttribute('data-story-caption');
+          storyCaptionNext.hidden = true;
+          storyCaptionNextLabel.textContent = '';
+          return;
+        }
+        storyCaption.hidden = false;
+        storyCaption.setAttribute('data-story-caption', step.relation);
+        storyCaption.setAttribute('aria-live', playing ? 'off' : 'polite');
+        storyCaptionIndex.textContent = (step.index + 1 < 10 ? '0' : '') + (step.index + 1) + ' / ' + (total < 10 ? '0' : '') + total;
+        storyCaptionRoute.textContent = storyCaptionRouteCopy(step);
+        storyCaptionDetail.textContent = storyCaptionDetailCopy(step);
+        storyCaptionNext.hidden = !nextStep;
+        storyCaptionNextLabel.textContent = nextStep
+          ? ((nextStep.index + 1 < 10 ? '0' : '') + (nextStep.index + 1) + ' · ' + nextStep.nodeLabel)
+          : '';
+        storyCaption.style.animation = 'none';
+        void storyCaption.offsetWidth;
+        storyCaption.style.removeProperty('animation');
+      }
+
+      function storyMomentLink() {
+        var view = activeIndex >= 0 ? views[activeIndex] : null;
+        var step = storyBeatIndex >= 0 ? storySteps[storyBeatIndex] : null;
+        if (!view || !step) return '';
+        var url = new URL(location.href);
+        url.searchParams.delete('play');
+        url.hash = 'view=' + encodeURIComponent(view.id) + '&beat=' + encodeURIComponent(step.nodeId);
+        return url.href;
+      }
+
+      function fallbackCopyStoryMoment(value) {
+        var field = document.createElement('textarea');
+        field.value = value;
+        field.setAttribute('readonly', '');
+        field.style.position = 'fixed';
+        field.style.opacity = '0';
+        document.body.appendChild(field);
+        field.select();
+        var copied = false;
+        try { copied = document.execCommand('copy'); } catch (_) {}
+        field.remove();
+        return copied;
+      }
+
+      function resetBeatLinkFeedback() {
+        if (beatLinkFeedbackTimer) clearTimeout(beatLinkFeedbackTimer);
+        beatLinkFeedbackTimer = null;
+        beatLink.removeAttribute('data-copy-state');
+        beatLinkLabel.textContent = viewerText('viewer.guided.copyMoment');
+      }
+
+      function syncBeatLink() {
+        var step = storyBeatIndex >= 0 ? storySteps[storyBeatIndex] : null;
+        var available = !!(activeIndex >= 0 && step && !currentHandoff);
+        beatLink.disabled = !available;
+        if (!beatLink.hasAttribute('data-copy-state')) beatLinkLabel.textContent = viewerText('viewer.guided.copyMoment');
+        var description = available
+          ? viewerText('viewer.guided.beatLink', { index: step.index + 1, total: storySteps.length, label: step.nodeLabel })
+          : viewerText('viewer.guided.selectBeatLink');
+        beatLink.setAttribute('aria-label', description);
+        beatLink.title = description;
+      }
+
+      function setBeatLinkFeedback(copied) {
+        resetBeatLinkFeedback();
+        beatLink.setAttribute('data-copy-state', copied ? 'copied' : 'failed');
+        beatLinkLabel.textContent = viewerText(copied ? 'viewer.guided.copied' : 'viewer.guided.copyFailed');
+        beatLink.setAttribute('aria-label', viewerText(copied ? 'viewer.guided.momentCopied' : 'viewer.guided.momentCopyFailed'));
+        beatLinkFeedbackTimer = setTimeout(function () {
+          resetBeatLinkFeedback();
+          syncBeatLink();
+        }, 1600);
+      }
+
+      function copyStoryMomentLink() {
+        if (playing) pausePlayback();
+        var value = storyMomentLink();
+        if (!value) return Promise.resolve(false);
+        var copy = navigator.clipboard && typeof navigator.clipboard.writeText === 'function'
+          ? navigator.clipboard.writeText(value).then(function () { return true; }).catch(function () { return fallbackCopyStoryMoment(value); })
+          : Promise.resolve(fallbackCopyStoryMoment(value));
+        return copy.then(function (copied) {
+          setBeatLinkFeedback(copied);
+          return copied;
+        });
+      }
+
+      function hashBeatMatchesCurrent() {
+        var view = activeIndex >= 0 ? views[activeIndex] : null;
+        var step = storyBeatIndex >= 0 ? storySteps[storyBeatIndex] : null;
+        if (!view || !step) return false;
+        try {
+          var params = new URLSearchParams(location.hash.replace(/^#/, ''));
+          return params.get('view') === view.id && params.get('beat') === step.nodeId;
+        } catch (_) { return false; }
+      }
+
+      function storyMotionAllowed() {
+        if (document.hidden || reducedMotion()) return false;
+        if (document.documentElement.getAttribute('data-motion') !== 'live') return false;
+        if (document.documentElement.getAttribute('data-embed') === 'true' &&
+            document.documentElement.getAttribute('data-share-playback') !== 'true') return false;
+        if (window.matchMedia && window.matchMedia('print').matches) return false;
+        return !(Archify.motionGovernor && Archify.motionGovernor.isPaused());
+      }
+
+      function storyAutomaticPlaybackAllowed() {
+        if (document.hidden || reducedMotion()) return false;
+        if (window.matchMedia && window.matchMedia('print').matches) return false;
+        if (Archify.motionGovernor && Archify.motionGovernor.capable) return !Archify.motionGovernor.isPaused();
+        return true;
+      }
+
+      function clearStoryPulse(options) {
+        options = options || {};
+        storyPulseGeneration += 1;
+        Array.prototype.forEach.call(svg.querySelectorAll('.story-trail-flow[data-story-pulse]'), function (flow) {
+          flow.removeAttribute('data-story-pulse');
+        });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-carrier-overlay]'), function (overlay) {
+          overlay.remove();
+        });
+        if (storyPulseOwnerToken && options.release !== false && Archify.motionGovernor) {
+          var token = storyPulseOwnerToken;
+          storyPulseOwnerToken = 0;
+          Archify.motionGovernor.release(token);
+        } else if (options.release === false) storyPulseOwnerToken = 0;
+      }
+
+      function pulseStoryStep(step) {
+        clearStoryPulse();
+        if (!step || (step.relation !== 'forward' && step.relation !== 'reverse') || step.edges.length !== 1 || !storyMotionAllowed()) return false;
+        var flows = Array.prototype.slice.call(svg.querySelectorAll('.story-trail-flow[data-story-beat-step="' + step.index + '"]'));
+        if (!flows.length) return false;
+        var pulseGeneration = storyPulseGeneration;
+        if (Archify.motionGovernor && Archify.motionGovernor.capable) {
+          storyPulseOwnerToken = Archify.motionGovernor.claim('story', function () {
+            clearStoryPulse({ release: false });
+          });
+        }
+        flows.forEach(function (flow) { flow.setAttribute('data-story-pulse', 'true'); });
+        if (Archify.flowTokens && typeof Archify.flowTokens.create === 'function') {
+          var edge = step.edges[0];
+          var shapes = storyGeometry(edge);
+          var carrier = shapes.length ? Archify.flowTokens.create(edge, shapes[0], {
+            className: 'story-flow-token',
+            duration: '0.78s'
+          }) : null;
+          if (carrier) {
+            var carrierOverlay = document.createElementNS('http://www.w3.org/2000/svg', 'g');
+            var carrierWrapper = document.createElementNS('http://www.w3.org/2000/svg', 'g');
+            carrierOverlay.setAttribute('class', 'story-carrier-overlay');
+            carrierOverlay.setAttribute('data-story-carrier-overlay', '');
+            carrierOverlay.setAttribute('aria-hidden', 'true');
+            if (edge.hasAttribute('transform')) carrierWrapper.setAttribute('transform', edge.getAttribute('transform'));
+            carrier.setAttribute('data-story-carrier-token', '');
+            carrier.setAttribute('data-story-beat-step', String(step.index));
+            carrierWrapper.appendChild(carrier);
+            carrierOverlay.appendChild(carrierWrapper);
+            var firstNode = svg.querySelector('[data-node-id]');
+            while (firstNode && firstNode.parentNode !== svg) firstNode = firstNode.parentNode;
+            if (firstNode) svg.insertBefore(carrierOverlay, firstNode);
+            else svg.appendChild(carrierOverlay);
+          }
+        }
+        void flows[0].getBoundingClientRect();
+        flows[0].addEventListener('animationend', function () {
+          if (pulseGeneration === storyPulseGeneration) clearStoryPulse();
+        }, { once: true });
+        return true;
+      }
+
+      function stopStoryBeatTimer(options) {
+        options = options || {};
+        storyPlaybackGeneration += 1;
+        if (storyBeatTimer && options.preserveElapsed === true && storyBeatStartedAt) {
+          storyBeatElapsedMs = Math.min(storyBeatDwellMs, storyBeatElapsedMs + Math.max(0, Date.now() - storyBeatStartedAt));
+        }
+        if (storyBeatTimer) clearTimeout(storyBeatTimer);
+        storyBeatTimer = null;
+        storyBeatStartedAt = 0;
+      }
+
+      function centerStoryStop(stop) {
+        if (!stop || !trail) return false;
+        var target = Math.max(0, stop.offsetLeft - (trail.clientWidth - stop.offsetWidth) / 2);
+        trail.scrollLeft = target;
+        return true;
+      }
+
+      function storyBeatDwell(total) {
+        return Math.max(STORY_FOLLOW_MIN_DWELL_MS, VIEW_INTERVAL_MS / Math.max(1, total));
+      }
+
+      function clearStoryFollow() {
+        storyFollowGeneration += 1;
+        svg.removeAttribute('data-story-follow');
+        panel.removeAttribute('data-story-follow');
+        panel.removeAttribute('data-story-follow-node');
+      }
+
+      function storyFrameIds(step) {
+        if (!step) return [];
+        var ids = [];
+        if (step.index > 0 && storySteps[step.index - 1]) ids.push(storySteps[step.index - 1].nodeId);
+        ids.push(step.nodeId);
+        if (step.index + 1 < storySteps.length) ids.push(storySteps[step.index + 1].nodeId);
+        return ids;
+      }
+
+      function followStoryStep(step, options) {
+        options = options || {};
+        if (!step || document.hidden) return false;
+        if (!Archify.view || typeof Archify.view.reveal !== 'function') {
+          var deferredIndex = step.index;
+          var deferredGeneration = ++storyFollowGeneration;
+          requestAnimationFrame(function () {
+            if (deferredGeneration !== storyFollowGeneration || storyBeatIndex !== deferredIndex) return;
+            if (Archify.view && typeof Archify.view.reveal === 'function') followStoryStep(step, options);
+          });
+          return true;
+        }
+        if (window.matchMedia && window.matchMedia('print').matches) return false;
+        var embed = document.documentElement.getAttribute('data-embed') === 'true';
+        var explicitEmbedPlayback = document.documentElement.getAttribute('data-share-playback') === 'true';
+        if (embed && !explicitEmbedPlayback && options.linked !== true) return false;
+        var ids = storyFrameIds(step);
+        var generation = ++storyFollowGeneration;
+        svg.setAttribute('data-story-follow', step.nodeId);
+        panel.setAttribute('data-story-follow', 'moving');
+        panel.setAttribute('data-story-follow-node', step.nodeId);
+        var receipt = Archify.view.reveal(ids, {
+          reason: options.manual === true ? 'story-beat' : 'story-follow',
+          padding: 64,
+          maxScale: 1.65,
+          duration: STORY_FOLLOW_DURATION_MS,
+          instant: options.instant === true || reducedMotion() || document.documentElement.getAttribute('data-motion') !== 'live'
+        });
+        if (receipt && receipt.finished && typeof receipt.finished.then === 'function') {
+          receipt.finished.then(function (result) {
+            if (generation !== storyFollowGeneration || storyBeatIndex !== step.index) return;
+            svg.removeAttribute('data-story-follow');
+            panel.setAttribute('data-story-follow', result && result.state === 'complete' ? 'settled' : 'interrupted');
+          });
+        } else if (generation === storyFollowGeneration) {
+          panel.setAttribute('data-story-follow', 'settled');
+        }
+        return receipt;
+      }
+
+      function setStoryBeat(index, options) {
+        options = options || {};
+        var stops = Array.prototype.slice.call(trail.querySelectorAll('[data-story-node]'));
+        if (!stops.length) return false;
+        resetBeatLinkFeedback();
+        storyBeatIndex = Math.max(0, Math.min(stops.length - 1, index));
+        var nextStep = storyBeatIndex + 1 < storySteps.length ? storySteps[storyBeatIndex + 1] : null;
+        svg.setAttribute('data-story-beat', (storyBeatIndex + 1) + '/' + stops.length);
+        panel.setAttribute('data-story-beat', (storyBeatIndex + 1) + '/' + stops.length);
+        if (nextStep) {
+          svg.setAttribute('data-story-next', nextStep.nodeId);
+          panel.setAttribute('data-story-next', nextStep.nodeId);
+        } else {
+          svg.removeAttribute('data-story-next');
+          panel.removeAttribute('data-story-next');
+        }
+        function storyBeatState(step) {
+          if (step < storyBeatIndex) return 'past';
+          if (step === storyBeatIndex) return 'active';
+          if (step === storyBeatIndex + 1) return 'next';
+          return 'pending';
+        }
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-step]'), function (node) {
+          var step = Number(node.getAttribute('data-story-step'));
+          node.setAttribute('data-story-beat-state', storyBeatState(step));
+        });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-beat-step]'), function (edge) {
+          var step = Number(edge.getAttribute('data-story-beat-step'));
+          edge.setAttribute('data-story-beat-state', storyBeatState(step));
+        });
+        stops.forEach(function (stop, step) {
+          stop.setAttribute('data-story-beat-state', storyBeatState(step));
+          if (step === storyBeatIndex) stop.setAttribute('aria-current', 'step');
+          else stop.removeAttribute('aria-current');
+        });
+        note.setAttribute('aria-live', 'off');
+        note.textContent = storyBeatCopy(storySteps[storyBeatIndex], stops.length);
+        renderStoryCaption(storySteps[storyBeatIndex], stops.length, nextStep);
+        if (options.center === true) centerStoryStop(stops[storyBeatIndex]);
+        if (options.pulse === true) pulseStoryStep(storySteps[storyBeatIndex]);
+        else clearStoryPulse();
+        if (options.follow === true) followStoryStep(storySteps[storyBeatIndex], {
+          manual: options.manual === true,
+          linked: options.linked === true,
+          instant: options.followInstant === true
+        });
+        renderShareCue();
+        syncBeatLink();
+        return true;
+      }
+
+      function settleStoryBeats() {
+        stopStoryBeatTimer();
+        clearStoryPulse();
+        clearStoryFollow();
+        resetBeatLinkFeedback();
+        storyBeatIndex = -1;
+        storyBeatElapsedMs = 0;
+        storyBeatDwellMs = 0;
+        svg.removeAttribute('data-story-beat');
+        svg.removeAttribute('data-story-next');
+        panel.removeAttribute('data-story-beat');
+        panel.removeAttribute('data-story-next');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-beat-state]'), function (el) {
+          el.removeAttribute('data-story-beat-state');
+        });
+        Array.prototype.forEach.call(trail.querySelectorAll('[data-story-beat-state]'), function (stop) {
+          stop.removeAttribute('data-story-beat-state');
+          stop.removeAttribute('aria-current');
+        });
+        note.setAttribute('aria-live', 'polite');
+        if (activeIndex >= 0) note.textContent = views[activeIndex].note || viewerText('viewer.guided.chapter.selectedNodes', { count: views[activeIndex].focus.length });
+        renderStoryCaption(null, 0);
+        renderShareCue();
+        syncBeatLink();
+      }
+
+      function clearStoryTrail() {
+        stopStoryBeatTimer();
+        clearStoryPulse();
+        clearStoryFollow();
+        resetBeatLinkFeedback();
+        storyBeatIndex = -1;
+        storyBeatElapsedMs = 0;
+        storyBeatDwellMs = 0;
+        storySteps = [];
+        svg.removeAttribute('data-story-active');
+        svg.removeAttribute('data-story-playing');
+        svg.removeAttribute('data-story-beat');
+        svg.removeAttribute('data-story-next');
+        panel.removeAttribute('data-story-beat');
+        panel.removeAttribute('data-story-next');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-overlay]'), function (overlay) {
+          overlay.remove();
+        });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-story-step], [data-story-beat-state]'), function (node) {
+          node.removeAttribute('data-story-step');
+          node.removeAttribute('data-story-beat-state');
+          node.style.removeProperty('--story-step');
+        });
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-edge-from][data-story-beat-step]'), function (edge) {
+          edge.removeAttribute('data-story-beat-step');
+          edge.removeAttribute('data-story-beat-state');
+        });
+        trail.textContent = '';
+        trail.hidden = true;
+        trail.removeAttribute('aria-label');
+        renderStoryCaption(null, 0);
+        syncBeatLink();
+      }
+
+      function storyGeometry(edge) {
+        if (/^(path|line|polyline)$/i.test(edge.tagName)) return [edge];
+        return Array.prototype.slice.call(edge.querySelectorAll('path, line, polyline'));
+      }
+
+      function renderStoryTrail(view) {
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        clearStoryTrail();
+        if (!view) return;
+
+        var nodeList = Array.prototype.slice.call(svg.querySelectorAll('[data-node-id]'));
+        var edgeList = Array.prototype.slice.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'));
+        var byId = {};
+        nodeList.forEach(function (node) { byId[node.getAttribute('data-node-id')] = node; });
+        storySteps = view.focus.map(function (_, index) { return storyStep(view, index, edgeList, byId); });
+        var labels = [];
+        storySteps.forEach(function (step, index) {
+          var id = step.nodeId;
+          var node = byId[id];
+          if (!node) return;
+          node.setAttribute('data-story-step', String(index));
+          node.style.setProperty('--story-step', String(index));
+          var nodeLabel = step.nodeLabel;
+          labels.push(nodeLabel);
+          var stop = document.createElement('button');
+          stop.type = 'button';
+          stop.className = 'guided-view-stop';
+          stop.setAttribute('data-story-node', id);
+          stop.setAttribute('data-story-index', String(index));
+          stop.setAttribute('data-story-relation', step.relation);
+          stop.setAttribute('data-story-number', (index + 1 < 10 ? '0' : '') + (index + 1));
+          if (index > 0) stop.setAttribute('data-story-link', step.relation);
+          stop.style.setProperty('--story-step', String(index));
+          stop.setAttribute('aria-label', storyBeatAria(step, storySteps.length));
+          stop.title = storyBeatCopy(step, storySteps.length);
+          stop.textContent = nodeLabel;
+          trail.appendChild(stop);
+        });
+        trail.hidden = labels.length === 0;
+        trail.setAttribute('aria-label', viewerText('viewer.guided.storyTrail', { label: view.label, count: labels.length }));
+        trail.scrollLeft = 0;
+        svg.setAttribute('data-story-active', view.id);
+
+        var overlay = document.createElementNS('http://www.w3.org/2000/svg', 'g');
+        overlay.setAttribute('class', 'story-trail-overlay');
+        overlay.setAttribute('data-story-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        var copied = 0;
+        storySteps.forEach(function (step) {
+          step.edges.forEach(function (edge) {
+            var edgeBeat = step.index;
+            edge.setAttribute('data-story-beat-step', String(edgeBeat));
+            var wrapper = document.createElementNS('http://www.w3.org/2000/svg', 'g');
+            if (edge.hasAttribute('transform')) wrapper.setAttribute('transform', edge.getAttribute('transform'));
+            storyGeometry(edge).forEach(function (shape) {
+              var clone = shape.cloneNode(false);
+              clone.removeAttribute('id');
+              clone.removeAttribute('marker-start');
+              clone.removeAttribute('marker-mid');
+              clone.removeAttribute('marker-end');
+              clone.removeAttribute('aria-label');
+              clone.removeAttribute('role');
+              clone.removeAttribute('data-animate');
+              clone.removeAttribute('data-edge-from');
+              clone.removeAttribute('data-edge-to');
+              clone.removeAttribute('data-edge-key');
+              clone.removeAttribute('data-edge-id');
+              clone.removeAttribute('data-edge-label');
+              clone.setAttribute('class', 'story-trail-flow');
+              clone.setAttribute('data-story-beat-step', String(edgeBeat));
+              clone.style.setProperty('--story-step', String(edgeBeat));
+              wrapper.appendChild(clone);
+              copied += 1;
+            });
+            if (wrapper.childNodes.length) overlay.appendChild(wrapper);
+          });
+        });
+        if (copied) {
+          var firstEdge = edgeList[0];
+          if (firstEdge && firstEdge.parentNode) firstEdge.parentNode.insertBefore(overlay, firstEdge);
+          else svg.insertBefore(overlay, svg.firstChild);
+        }
+      }
+
+      function syncStoryPlayback() {
+        var shouldPlay = playing && activeIndex >= 0;
+        if (shouldPlay && svg.getAttribute('data-story-playing') !== 'true') svg.setAttribute('data-story-playing', 'true');
+        else if (!shouldPlay && svg.hasAttribute('data-story-playing')) svg.removeAttribute('data-story-playing');
+      }
+
+      function resetProgress(fraction) {
+        fraction = Math.max(0, Math.min(1, Number(fraction) || 0));
+        progressBar.style.animation = 'none';
+        progressBar.style.setProperty('--guided-progress-start', String(fraction));
+        progressBar.style.transform = 'scaleX(' + fraction + ')';
+      }
+
+      function startProgress(fraction, duration) {
+        resetProgress(fraction);
+        void progressBar.offsetWidth;
+        progressBar.style.animation = 'archify-guided-progress ' + Math.max(1, duration || VIEW_INTERVAL_MS) + 'ms linear forwards';
+      }
+
+      function currentStoryProgress() {
+        var total = storySteps.length;
+        if (!total || storyBeatIndex < 0) return 0;
+        var elapsed = storyBeatElapsedMs;
+        if (playing && storyBeatTimer && storyBeatStartedAt) elapsed += Math.max(0, Date.now() - storyBeatStartedAt);
+        var dwell = storyBeatDwellMs || storyBeatDwell(total);
+        return Math.max(0, Math.min(1, (storyBeatIndex + Math.min(1, elapsed / dwell)) / total));
+      }
+
+      function renderPlayback() {
+        var automaticPlaybackAllowed = storyAutomaticPlaybackAllowed();
+        panel.setAttribute('data-playing', playing ? 'true' : 'false');
+        syncStoryPlayback();
+        play.disabled = !playing && !automaticPlaybackAllowed;
+        play.setAttribute('aria-pressed', playing ? 'true' : 'false');
+        play.setAttribute('aria-label', viewerText(playing
+          ? 'viewer.guided.pause'
+          : !automaticPlaybackAllowed
+            ? 'viewer.guided.motionUnavailable'
+            : storyPlaybackComplete
+              ? 'viewer.guided.replay'
+              : 'viewer.guided.play'));
+        play.title = viewerText(playing
+          ? 'viewer.guided.pause.title'
+          : !automaticPlaybackAllowed
+            ? 'viewer.guided.enableMotion'
+            : storyPlaybackComplete
+              ? 'viewer.guided.replay.title'
+              : 'viewer.guided.play.title');
+        playIcon.textContent = playing ? '\u2016' : '\u25b6';
+        playLabel.textContent = viewerText(playing
+          ? 'viewer.guided.pauseStory'
+          : storyPlaybackComplete
+            ? 'viewer.guided.replayStory'
+            : 'viewer.guided.playStory');
+        if (storyCaption && !storyCaption.hidden) storyCaption.setAttribute('aria-live', playing ? 'off' : 'polite');
+      }
+
+      function render() {
+        var view = views[activeIndex];
+        count.textContent = activeIndex < 0 ? '0 / ' + views.length : (activeIndex + 1) + ' / ' + views.length;
+        label.textContent = view ? view.label : viewerText('viewer.guided.explore');
+        note.setAttribute('aria-live', storyBeatIndex >= 0 ? 'off' : 'polite');
+        note.textContent = storyBeatIndex >= 0
+          ? storyBeatCopy(storySteps[storyBeatIndex], storySteps.length)
+          : (view
+            ? (view.note || viewerText('viewer.guided.chapter.selectedNodes', { count: view.focus.length }))
+            : viewerText('viewer.guided.intro'));
+        prev.disabled = activeIndex < 0;
+        next.disabled = activeIndex >= views.length - 1;
+        all.disabled = activeIndex < 0;
+        panel.setAttribute('data-active-view', view ? view.id : 'all');
+        syncChapterIndex();
+        renderShareCue();
+        renderPlayback();
+        syncBeatLink();
+      }
+
+      function pausePlayback(options) {
+        options = options || {};
+        var progress = options.complete === true ? 1 : currentStoryProgress();
+        if (panel.getAttribute('data-autoplay') === 'playing') {
+          setShareCueProgress(progress);
+          setAutoplayState(options.complete === true ? 'complete' : 'interrupted');
+        }
+        stopStoryBeatTimer({ preserveElapsed: options.complete !== true });
+        clearStoryPulse();
+        clearStoryFollow();
+        playing = false;
+        storyPlaybackComplete = options.complete === true;
+        resetProgress(progress);
+        renderPlayback();
+        renderShareCue();
+      }
+
+      function finishStoryChapter() {
+        if (!playing) return false;
+        if (storyPlaybackScope === 'chapter') {
+          pausePlayback({ complete: true });
+          return true;
+        }
+        if (activeIndex < views.length - 1) {
+          var destinationIndex = activeIndex + 1;
+          activate(destinationIndex, { playback: true });
+          afterHandoff(function () {
+            if (!playing || activeIndex !== destinationIndex) return;
+            storyBeatElapsedMs = 0;
+            setStoryBeat(0, { pulse: true, follow: true });
+            scheduleStoryPlayback();
+          });
+          return true;
+        }
+        pausePlayback({ complete: true });
+        return true;
+      }
+
+      function scheduleStoryPlayback() {
+        var total = storySteps.length;
+        if (!playing || !total || reducedMotion()) {
+          if (playing) pausePlayback();
+          return false;
+        }
+        storyBeatDwellMs = storyBeatDwell(total);
+        if (storyBeatIndex < 0) {
+          storyBeatElapsedMs = 0;
+          setStoryBeat(0, { pulse: true, follow: true });
+        }
+        storyBeatElapsedMs = Math.max(0, Math.min(storyBeatDwellMs, storyBeatElapsedMs));
+        var remainingDwell = Math.max(1, storyBeatDwellMs - storyBeatElapsedMs);
+        var progress = (storyBeatIndex + storyBeatElapsedMs / storyBeatDwellMs) / total;
+        var remainingChapter = remainingDwell + Math.max(0, total - storyBeatIndex - 1) * storyBeatDwellMs;
+        startProgress(progress, remainingChapter);
+        if (panel.getAttribute('data-autoplay') === 'playing') startShareCueProgress(progress, remainingChapter);
+        var generation = ++storyPlaybackGeneration;
+        storyBeatStartedAt = Date.now();
+        storyBeatTimer = setTimeout(function () {
+          if (!playing || generation !== storyPlaybackGeneration) return;
+          storyBeatTimer = null;
+          storyBeatStartedAt = 0;
+          storyBeatElapsedMs = 0;
+          if (storyBeatIndex < total - 1) {
+            setStoryBeat(storyBeatIndex + 1, { pulse: true, follow: true });
+            scheduleStoryPlayback();
+          } else finishStoryChapter();
+        }, remainingDwell);
+        return true;
+      }
+
+      function startPlayback() {
+        if (!storyAutomaticPlaybackAllowed()) {
+          renderPlayback();
+          return false;
+        }
+        autoplayPending = false;
+        setAutoplayState(null);
+        setShareCueProgress(0);
+        document.documentElement.removeAttribute('data-share-playback');
+        storyPlaybackScope = 'story';
+        if (storyPlaybackComplete) showAll({ updateUrl: false });
+        storyPlaybackComplete = false;
+        if (activeIndex < 0) activate(0, { playback: true });
+        playing = true;
+        renderPlayback();
+        afterHandoff(function () {
+          if (!playing) return;
+          if (storyBeatIndex >= 0) followStoryStep(storySteps[storyBeatIndex]);
+          scheduleStoryPlayback();
+        });
+        return true;
+      }
+
+      function startCurrentViewPlayback() {
+        if (document.hidden) return false;
+        autoplayPending = false;
+        document.documentElement.setAttribute('data-share-playback', 'true');
+        storyPlaybackScope = 'chapter';
+        storyPlaybackComplete = false;
+        if (activeIndex < 0) activate(0, { playback: true, updateUrl: false });
+        if (!storyAutomaticPlaybackAllowed()) {
+          var preserveMoment = hashBeatMatchesCurrent();
+          setShareCueProgress(preserveMoment && storySteps.length ? (storyBeatIndex + 1) / storySteps.length : 1);
+          setAutoplayState('reduced-motion');
+          playing = false;
+          if (preserveMoment) {
+            clearStoryPulse();
+            renderShareCue();
+          } else settleStoryBeats();
+          renderPlayback();
+          return false;
+        }
+        playing = true;
+        setAutoplayState('playing');
+        renderPlayback();
+        afterHandoff(function () {
+          if (!playing) return;
+          if (storyBeatIndex >= 0) followStoryStep(storySteps[storyBeatIndex]);
+          scheduleStoryPlayback();
+        });
+        return true;
+      }
+
+      function maybeStartSharePlayback() {
+        if (!autoplayPending || document.hidden) return false;
+        return startCurrentViewPlayback();
+      }
+
+      function togglePlayback() {
+        return playing ? (pausePlayback(), false) : startPlayback();
+      }
+
+      function syncStoryControlsDisabled() {
+        Array.prototype.forEach.call(trail.querySelectorAll('[data-story-node]'), function (stop) {
+          stop.disabled = !!currentHandoff;
+        });
+        syncBeatLink();
+      }
+
+      function selectStoryBeat(index) {
+        if (currentHandoff || activeIndex < 0 || index < 0 || index >= storySteps.length) return false;
+        momentRestoreGeneration += 1;
+        clearChapterPreview({ clearIntents: true });
+        if (playing) pausePlayback();
+        else {
+          stopStoryBeatTimer();
+          clearStoryPulse();
+        }
+        storyPlaybackComplete = false;
+        storyPlaybackScope = 'story';
+        storyBeatElapsedMs = 0;
+        storyBeatDwellMs = storyBeatDwell(storySteps.length);
+        var view = views[activeIndex];
+        Archify.focus.setMany(view.focus, {
+          toggle: false,
+          updateUrl: false,
+          mode: 'selection',
+          label: view.label,
+          hideChip: true
+        });
+        setStoryBeat(index, { manual: true, center: true, pulse: true, follow: true });
+        resetProgress(index / storySteps.length);
+        renderPlayback();
+        return true;
+      }
+
+      function selectStoryBeatById(id, options) {
+        options = options || {};
+        var index = storySteps.findIndex(function (step) { return step.nodeId === id; });
+        if (index < 0) return false;
+        if (playing) pausePlayback();
+        else {
+          stopStoryBeatTimer();
+          clearStoryPulse();
+        }
+        storyPlaybackComplete = false;
+        storyPlaybackScope = 'story';
+        storyBeatElapsedMs = 0;
+        storyBeatDwellMs = storyBeatDwell(storySteps.length);
+        setStoryBeat(index, {
+          manual: false,
+          center: true,
+          pulse: false,
+          follow: options.follow === true,
+          linked: options.linked === true,
+          followInstant: options.followInstant === true
+        });
+        resetProgress(index / storySteps.length);
+        renderPlayback();
+        return true;
+      }
+
+      function updateUrl(view) {
+        try {
+          history.replaceState(null, '', location.pathname + location.search + (view ? '#view=' + encodeURIComponent(view.id) : ''));
+        } catch (_) {}
+      }
+
+      function showAll(options) {
+        options = options || {};
+        if (options.restore !== true) momentRestoreGeneration += 1;
+        clearChapterPreview({ clearIntents: true });
+        if (playing && options.playback !== true) pausePlayback();
+        if (options.playback !== true) storyPlaybackComplete = false;
+        cancelHandoff('overview');
+        activeIndex = -1;
+        renderStoryTrail(null);
+        if (options.clearFocus !== false) Archify.focus.clear({ updateUrl: false });
+        if (options.resetView !== false && Archify.view && typeof Archify.view.reset === 'function') {
+          Archify.view.reset({ automatic: true });
+        }
+        render();
+        if (options.updateUrl !== false) updateUrl(null);
+      }
+
+      function activate(index, options) {
+        options = options || {};
+        if (options.restore !== true) momentRestoreGeneration += 1;
+        if (playing && options.playback !== true) pausePlayback();
+        if (options.playback !== true) storyPlaybackComplete = false;
+        if (index < 0) { showAll(options); return true; }
+        if (index >= views.length) return false;
+        clearChapterPreview({ clearIntents: true });
+        var previousIndex = activeIndex;
+        var previous = previousIndex >= 0 ? views[previousIndex] : null;
+        var outgoingBeatIndex = storyBeatIndex;
+        cancelHandoff('replaced');
+        activeIndex = index;
+        var view = views[index];
+        Archify.focus.setMany(view.focus, {
+          toggle: false,
+          updateUrl: false,
+          mode: 'selection',
+          label: view.label,
+          hideChip: true
+        });
+        renderStoryTrail(view);
+        beginHandoff(previousIndex, index, previous, view, outgoingBeatIndex, options.playback === true ? 'playback' : 'guided');
+        syncStoryControlsDisabled();
+        render();
+        if (options.updateUrl !== false) updateUrl(view);
+        return true;
+      }
+
+      function activateById(id, options) {
+        var index = views.findIndex(function (view) { return view.id === id; });
+        return index >= 0 && activate(index, options);
+      }
+
+      prev.addEventListener('click', function () { activate(activeIndex - 1); });
+      next.addEventListener('click', function () { activate(activeIndex + 1); });
+      all.addEventListener('click', function () { showAll(); });
+      play.addEventListener('click', togglePlayback);
+      beatLink.addEventListener('click', copyStoryMomentLink);
+      trail.addEventListener('focusin', function (event) {
+        if (!event.target.closest('[data-story-node]')) return;
+        if (playing) pausePlayback();
+      });
+      trail.addEventListener('click', function (event) {
+        var stop = event.target.closest('[data-story-node]');
+        if (!stop || stop.disabled) return;
+        selectStoryBeat(Number(stop.getAttribute('data-story-index')));
+      });
+      trail.addEventListener('keydown', function (event) {
+        if (event.key !== 'Enter' && event.key !== ' ') return;
+        var stop = event.target.closest('[data-story-node]');
+        if (!stop || stop.disabled) return;
+        event.preventDefault();
+        selectStoryBeat(Number(stop.getAttribute('data-story-index')));
+      });
+      chapterList.addEventListener('click', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        if (!button) return;
+        activateById(button.getAttribute('data-guided-view-id'));
+      });
+      chapterList.addEventListener('pointerover', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        if (!button || !hoverCapable() || event.pointerType === 'touch') return;
+        if (event.relatedTarget && button.contains(event.relatedTarget)) return;
+        setChapterPreviewIntent('pointer', chapterButtons.indexOf(button));
+      });
+      chapterList.addEventListener('pointerout', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        if (!button || (event.relatedTarget && button.contains(event.relatedTarget))) return;
+        clearChapterPreviewIntent('pointer', chapterButtons.indexOf(button));
+      });
+      chapterIndex.addEventListener('focusin', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        if (!button) return;
+        setChapterPreviewIntent('focus', chapterButtons.indexOf(button));
+      });
+      chapterIndex.addEventListener('focusout', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        if (!button || (event.relatedTarget && button.contains(event.relatedTarget))) return;
+        clearChapterPreviewIntent('focus', chapterButtons.indexOf(button));
+      });
+      chapterList.addEventListener('keydown', function (event) {
+        var button = event.target.closest('[data-guided-view-id]');
+        var index = chapterButtons.indexOf(button);
+        if (index < 0) return;
+        var target = null;
+        if (event.key === 'ArrowRight') target = Math.min(chapterButtons.length - 1, index + 1);
+        else if (event.key === 'ArrowLeft') target = Math.max(0, index - 1);
+        else if (event.key === 'Home') target = 0;
+        else if (event.key === 'End') target = chapterButtons.length - 1;
+        if (target === null) return;
+        event.preventDefault();
+        focusChapterButton(target);
+      });
+
+      // A direct node exploration supersedes the curated view. Capture phase
+      // releases the view before the focus explorer writes its own deep link.
+      function releaseForNode(event) {
+        if (activeIndex >= 0 && event.target.closest('[data-node-id]')) {
+          pausePlayback();
+          showAll({ clearFocus: false, updateUrl: false });
+        }
+      }
+      svg.addEventListener('click', releaseForNode, true);
+      svg.addEventListener('keydown', function (event) {
+        if (event.key === 'Enter' || event.key === ' ') releaseForNode(event);
+      }, true);
+
+      document.addEventListener('keydown', function (event) {
+        if (event.metaKey || event.ctrlKey || event.altKey) return;
+        if (document.documentElement.getAttribute('data-guide-open') === 'true') return;
+        var target = event.target;
+        if (target && (target.tagName === 'INPUT' || target.tagName === 'TEXTAREA' || target.isContentEditable)) return;
+        if (event.key === ']') {
+          event.preventDefault();
+          if (activeIndex < views.length - 1) activate(activeIndex + 1);
+        } else if (event.key === '[') {
+          event.preventDefault();
+          if (activeIndex >= 0) activate(activeIndex - 1);
+        } else if (event.key.toLowerCase() === 'p') {
+          event.preventDefault();
+          togglePlayback();
+        } else if (event.key === 'Escape' && activePreviewIndex >= 0) {
+          event.preventDefault();
+          event.stopImmediatePropagation();
+          clearChapterPreview({ clearIntents: true });
+        } else if (event.key === 'Escape' && activeIndex >= 0) {
+          event.preventDefault();
+          showAll();
+        }
+      }, true);
+
+      function syncViewFromHash() {
+        try {
+          var params = new URLSearchParams(location.hash.replace(/^#/, ''));
+          var initial = params.get('view');
+          var requestedBeat = params.get('beat');
+          var restoreGeneration = ++momentRestoreGeneration;
+          if (initial) {
+            var activated = activateById(initial, { updateUrl: false, restore: true });
+            if (!activated) {
+              showAll({ updateUrl: false, restore: true });
+              return;
+            }
+            if (requestedBeat) afterHandoff(function () {
+              if (restoreGeneration !== momentRestoreGeneration) return;
+              var latest = new URLSearchParams(location.hash.replace(/^#/, ''));
+              if (latest.get('view') !== initial || latest.get('beat') !== requestedBeat) return;
+              if (activeIndex < 0 || views[activeIndex].id !== initial) return;
+              selectStoryBeatById(requestedBeat, { linked: true, follow: true, followInstant: true });
+            });
+          } else if (params.get('focus') || params.get('relation')) {
+            activeIndex = -1;
+            render();
+          } else {
+            showAll({ updateUrl: false, restore: true });
+          }
+        } catch (_) { showAll({ updateUrl: false, restore: true }); }
+      }
+
+      window.addEventListener('hashchange', syncViewFromHash);
+      document.addEventListener('visibilitychange', function () {
+        if (document.hidden) {
+          clearChapterPreview({ clearIntents: true });
+          if (playing) pausePlayback();
+          else clearStoryPulse();
+          settleHandoff('hidden');
+        }
+        else if (!document.hidden) maybeStartSharePlayback();
+      });
+      if (window.matchMedia) {
+        var guidedMotionQuery = window.matchMedia('(prefers-reduced-motion: reduce)');
+        var onGuidedMotionChange = function () {
+          if (guidedMotionQuery.matches) {
+            if (playing) pausePlayback();
+            else clearStoryPulse();
+            settleHandoff('reduced-motion');
+          }
+        };
+        if (typeof guidedMotionQuery.addEventListener === 'function') guidedMotionQuery.addEventListener('change', onGuidedMotionChange);
+        else if (typeof guidedMotionQuery.addListener === 'function') guidedMotionQuery.addListener(onGuidedMotionChange);
+      }
+      if (document.documentElement.getAttribute('data-embed') !== 'true' && typeof MutationObserver !== 'undefined' && typeof Node !== 'undefined' && svg instanceof Node && document.documentElement instanceof Node) {
+        var chapterPreviewOwnerObserver = new MutationObserver(syncChapterPreview);
+        chapterPreviewOwnerObserver.observe(svg, {
+          attributes: true,
+          attributeFilter: [
+            'data-route-picking', 'data-route-active', 'data-lens-active',
+            'data-legend-preview-active', 'data-relationship-preview-active',
+            'data-intent-trace-active', 'data-focus-active'
+          ]
+        });
+        var storyMotionObserver = new MutationObserver(function () {
+          if (document.documentElement.getAttribute('data-motion') !== 'live') clearStoryPulse();
+          renderPlayback();
+        });
+        storyMotionObserver.observe(document.documentElement, { attributes: true, attributeFilter: ['data-motion'] });
+      }
+      window.addEventListener('beforeprint', function () {
+        clearChapterPreview({ clearIntents: true });
+        if (playing) pausePlayback();
+        else clearStoryPulse();
+        settleHandoff('print');
+      });
+      syncViewFromHash();
+      if (autoplayPending) {
+        requestAnimationFrame(function () {
+          requestAnimationFrame(maybeStartSharePlayback);
+        });
+      }
+
+      return {
+        count: views.length,
+        activate: activateById,
+        showAll: showAll,
+        play: startPlayback,
+        playCurrent: startCurrentViewPlayback,
+        pause: pausePlayback,
+        beatLink: storyMomentLink,
+        copyBeatLink: copyStoryMomentLink,
+        cancelHandoff: cancelHandoff,
+        settleHandoff: settleHandoff,
+        clearPreview: function () { return clearChapterPreview({ clearIntents: true }); },
+        isPlaying: function () { return playing; },
+        handoff: function () {
+          return currentHandoff ? { id: currentHandoff.id, mode: currentHandoff.mode, anchor: currentHandoff.anchor || null } : null;
+        },
+        active: function () { return activeIndex < 0 ? null : views[activeIndex].id; },
+        preview: function () { return activePreviewIndex < 0 ? null : views[activePreviewIndex].id; },
+        delta: function (id) {
+          var index = views.findIndex(function (view) { return view.id === id; });
+          if (index < 0) return null;
+          var value = chapterDelta(activeIndex >= 0 ? views[activeIndex] : null, views[index]);
+          return { stay: value.stay.slice(), enter: value.enter.slice(), leave: value.leave.slice() };
+        },
+        beat: function () {
+          var step = storyBeatIndex >= 0 ? storySteps[storyBeatIndex] : null;
+          return step ? {
+            index: step.index,
+            position: step.index + 1,
+            total: storySteps.length,
+            nodeId: step.nodeId,
+            relation: step.relation,
+            edgeKeys: step.edgeKeys.slice()
+          } : null;
+        },
+        focus: function () { return activeIndex < 0 ? [] : views[activeIndex].focus.slice(); }
+      };
+    })();
+
+    /* ============================================================
+       Adaptive Reader Shell — one diagram across laptop and monitor.
+       The canonical SVG and viewBox never change. On ordinary desktop pages,
+       wide diagrams receive only enough outer width to use the available
+       height without pushing summary cards below the viewport. Mobile,
+       embed, presentation, print, and non-wide diagrams retain their own
+       established layout contracts.
+       ============================================================ */
+    Archify.waitForStableLayout = function (options) {
+      options = options || {};
+      var maximumFrames = Math.max(1, Number(options.maximumFrames) || 240);
+      var fontsReady = document.fonts && document.fonts.ready
+        ? document.fonts.ready.catch(function () {})
+        : Promise.resolve();
+      return fontsReady.then(function () {
+        if (typeof options.schedule === 'function') options.schedule();
+        return new Promise(function (resolve, reject) {
+          var previous = '';
+          var stableFrames = 0;
+          var sampledFrames = 0;
+          function sample() {
+            sampledFrames += 1;
+            if (typeof options.pending === 'function' && options.pending()) {
+              previous = '';
+              stableFrames = 0;
+            } else {
+              var current = typeof options.snapshot === 'function' ? options.snapshot() : '';
+              if (current === previous) stableFrames += 1;
+              else {
+                previous = current;
+                stableFrames = 0;
+              }
+              if (stableFrames >= 3) {
+                resolve({ stable: true, snapshot: current, sampledFrames: sampledFrames });
+                return;
+              }
+            }
+            if (sampledFrames >= maximumFrames) {
+              reject(new Error(options.timeoutMessage || 'Layout did not reach stable dimensions.'));
+              return;
+            }
+            requestAnimationFrame(sample);
+          }
+          requestAnimationFrame(sample);
+        });
+      });
+    };
+
+    Archify.readerLayout = (function () {
+      var html = document.documentElement;
+      var body = document.body;
+      var shell = document.querySelector('.container');
+      var diagram = document.querySelector('.diagram-container');
+      var svg = diagram && diagram.querySelector(':scope > svg');
+      var header = shell && shell.querySelector('.header');
+      var guided = shell && shell.querySelector('.guided-views');
+      var cards = shell && shell.querySelector('.cards');
+      var viewBox = svg && svg.viewBox && svg.viewBox.baseVal;
+      var ratio = viewBox && viewBox.height > 0 ? viewBox.width / viewBox.height : 0;
+      var frame = 0;
+      var settleFrame = 0;
+      var lastWidth = 0;
+      var WIDE_RATIO = 1.55;
+      var MIN_DESKTOP_WIDTH = 1024;
+      var MIN_READER_WIDTH = 960;
+      var MAX_READER_WIDTH = 1920;
+      var SAFE_BOTTOM_GAP = 12;
+
+      if (diagram && ratio >= WIDE_RATIO) {
+        diagram.setAttribute('data-wide-diagram', 'true');
+        html.setAttribute('data-diagram-shape', 'wide');
+      }
+
+      function number(value) {
+        var parsed = parseFloat(value);
+        return Number.isFinite(parsed) ? parsed : 0;
+      }
+      function visible(element) {
+        return Boolean(element && !element.hidden && window.getComputedStyle(element).display !== 'none');
+      }
+      function outerHeight(element) {
+        if (!visible(element)) return 0;
+        var style = window.getComputedStyle(element);
+        return element.getBoundingClientRect().height + number(style.marginTop) + number(style.marginBottom);
+      }
+      function eligible() {
+        return Boolean(
+          shell && diagram && svg && ratio >= WIDE_RATIO &&
+          window.innerWidth >= MIN_DESKTOP_WIDTH &&
+          html.getAttribute('data-embed') !== 'true' &&
+          html.getAttribute('data-present') !== 'true' &&
+          (!window.matchMedia || !window.matchMedia('print').matches)
+        );
+      }
+      function clear() {
+        html.style.removeProperty('--archify-reader-width');
+        html.removeAttribute('data-reader-layout');
+        html.removeAttribute('data-reader-overflow');
+        lastWidth = 0;
+      }
+      function chromeMetrics() {
+        var bodyStyle = window.getComputedStyle(body);
+        var diagramStyle = window.getComputedStyle(diagram);
+        return {
+          bodyX: number(bodyStyle.paddingLeft) + number(bodyStyle.paddingRight),
+          bodyY: number(bodyStyle.paddingTop) + number(bodyStyle.paddingBottom),
+          diagramX: number(diagramStyle.paddingLeft) + number(diagramStyle.paddingRight) +
+            number(diagramStyle.borderLeftWidth) + number(diagramStyle.borderRightWidth),
+          diagramY: number(diagramStyle.paddingTop) + number(diagramStyle.paddingBottom) +
+            number(diagramStyle.borderTopWidth) + number(diagramStyle.borderBottomWidth)
+        };
+      }
+      function applyWidth(width) {
+        var rounded = Math.round(width);
+        if (Math.abs(rounded - lastWidth) < 1) return false;
+        lastWidth = rounded;
+        html.style.setProperty('--archify-reader-width', rounded + 'px');
+        html.setAttribute('data-reader-layout', 'adaptive');
+        return true;
+      }
+      function settleOverflow(minWidth) {
+        if (settleFrame) cancelAnimationFrame(settleFrame);
+        settleFrame = requestAnimationFrame(function () {
+          settleFrame = 0;
+          if (!eligible() || !lastWidth) return;
+          var overflow = Math.max(
+            document.documentElement.scrollHeight,
+            document.body.scrollHeight
+          ) - window.innerHeight;
+          if (overflow > 1 && lastWidth > minWidth) {
+            applyWidth(Math.max(minWidth, lastWidth - overflow * ratio - 4));
+            html.setAttribute('data-reader-overflow', 'reduced');
+          } else if (overflow > 1) {
+            html.setAttribute('data-reader-overflow', 'authored');
+          } else {
+            html.removeAttribute('data-reader-overflow');
+          }
+        });
+      }
+      function measure() {
+        frame = 0;
+        if (!eligible()) {
+          clear();
+          return null;
+        }
+        var chrome = chromeMetrics();
+        var viewportCap = Math.max(0, window.innerWidth - chrome.bodyX);
+        var minWidth = Math.min(MIN_READER_WIDTH, viewportCap);
+        var maxWidth = Math.min(MAX_READER_WIDTH, viewportCap);
+        var fixedHeight = chrome.bodyY + chrome.diagramY + SAFE_BOTTOM_GAP +
+          outerHeight(header) + outerHeight(guided) + outerHeight(cards);
+        var availableSvgHeight = Math.max(1, window.innerHeight - fixedHeight);
+        var desiredWidth = availableSvgHeight * ratio + chrome.diagramX;
+        var width = Math.max(minWidth, Math.min(maxWidth, desiredWidth));
+        applyWidth(width);
+        settleOverflow(minWidth);
+        return {
+          ratio: ratio,
+          width: Math.round(width),
+          availableSvgHeight: Math.round(availableSvgHeight),
+          fixedHeight: Math.round(fixedHeight)
+        };
+      }
+      function schedule() {
+        if (frame) return;
+        frame = requestAnimationFrame(measure);
+      }
+      function stableSnapshot() {
+        var shellRect = shell ? shell.getBoundingClientRect() : { width: 0, height: 0 };
+        var diagramRect = diagram ? diagram.getBoundingClientRect() : { width: 0, height: 0 };
+        return [
+          lastWidth,
+          html.getAttribute('data-reader-layout') || '',
+          html.getAttribute('data-reader-overflow') || '',
+          Math.ceil(document.documentElement.scrollWidth),
+          Math.ceil(document.documentElement.scrollHeight),
+          Math.ceil(document.body.scrollWidth),
+          Math.ceil(document.body.scrollHeight),
+          Math.round(shellRect.width * 100) / 100,
+          Math.round(shellRect.height * 100) / 100,
+          Math.round(diagramRect.width * 100) / 100,
+          Math.round(diagramRect.height * 100) / 100
+        ].join('|');
+      }
+      function whenStable() {
+        return Archify.waitForStableLayout({
+          schedule: schedule,
+          pending: function () { return Boolean(frame || settleFrame); },
+          snapshot: stableSnapshot,
+          timeoutMessage: 'Adaptive reader layout did not reach stable dimensions.'
+        });
+      }
+
+      window.addEventListener('resize', schedule, { passive: true });
+      window.addEventListener('load', schedule, { once: true });
+      if (document.fonts && document.fonts.ready) document.fonts.ready.then(schedule).catch(function () {});
+      if (typeof ResizeObserver === 'function') {
+        var resizeObserver = new ResizeObserver(schedule);
+        [header, guided, cards].forEach(function (element) { if (element) resizeObserver.observe(element); });
+      }
+      if (typeof MutationObserver === 'function') {
+        var contentObserver = new MutationObserver(schedule);
+        if (guided) contentObserver.observe(guided, { attributes: true, childList: true, subtree: true });
+        if (cards) contentObserver.observe(cards, { attributes: true, childList: true, subtree: true });
+        contentObserver.observe(html, { attributes: true, attributeFilter: ['data-embed', 'data-present'] });
+      }
+      schedule();
+
+      return {
+        measure: measure,
+        schedule: schedule,
+        whenStable: whenStable,
+        active: function () { return html.getAttribute('data-reader-layout') === 'adaptive'; },
+        receipt: function () { return { ratio: ratio, width: lastWidth }; }
+      };
+    })();
+
+    /* ============================================================
+       Viewer Chrome Layout — keep HTML controls clear of the canonical SVG
+       stage without changing authored geometry. The dock keeps its floating
+       appearance while a small bottom stage rail becomes part of the reader
+       budget whenever its zero-reserve position would enter the stage.
+       ============================================================ */
+    Archify.viewerChromeLayout = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container && container.querySelector(':scope > svg');
+      var nav = container && container.querySelector('.diagram-nav');
+      var legend = svg && svg.querySelector('[data-legend]');
+      var frame = 0;
+      var settleFrame = 0;
+      var reserve = 0;
+      var railLatched = false;
+      var probingBaseline = false;
+      var probePromise = null;
+      var baselineIntersectionArea = 0;
+      var baselineStageGap = null;
+      var restorableReserve = 0;
+      var probeFallbackReserve = 0;
+      var lastReceipt = null;
+      var SAFE_GAP = 10;
+
+      function visible(element) {
+        if (!element || element.hidden) return false;
+        var style = window.getComputedStyle(element);
+        return style.display !== 'none' && style.visibility !== 'hidden';
+      }
+      function usable(rect) {
+        return Boolean(rect && rect.width > 0 && rect.height > 0);
+      }
+      function intersectionArea(a, b) {
+        var width = Math.max(0, Math.min(a.right, b.right) - Math.max(a.left, b.left));
+        var height = Math.max(0, Math.min(a.bottom, b.bottom) - Math.max(a.top, b.top));
+        return width * height;
+      }
+      function protectedStageRect() {
+        if (!svg) return null;
+        var rect = svg.getBoundingClientRect();
+        var transform = '';
+        try { transform = window.getComputedStyle(svg).transform || ''; } catch (_) {}
+        var scaleX = 1;
+        var scaleY = 1;
+        var translateX = 0;
+        var translateY = 0;
+        var matrix = transform.match(/^matrix\(([^)]+)\)$/);
+        var matrix3d = transform.match(/^matrix3d\(([^)]+)\)$/);
+        if (matrix) {
+          var values = matrix[1].split(',').map(Number);
+          if (values.length === 6 && values.every(Number.isFinite)) {
+            scaleX = Math.abs(values[0]) || 1;
+            scaleY = Math.abs(values[3]) || 1;
+            translateX = values[4];
+            translateY = values[5];
+          }
+        } else if (matrix3d) {
+          var values3d = matrix3d[1].split(',').map(Number);
+          if (values3d.length === 16 && values3d.every(Number.isFinite)) {
+            scaleX = Math.abs(values3d[0]) || 1;
+            scaleY = Math.abs(values3d[5]) || 1;
+            translateX = values3d[12];
+            translateY = values3d[13];
+          }
+        }
+        var width = rect.width / scaleX;
+        var height = rect.height / scaleY;
+        var left = rect.left - translateX;
+        var top = rect.top - translateY;
+        return {
+          x: left,
+          y: top,
+          left: left,
+          top: top,
+          right: left + width,
+          bottom: top + height,
+          width: width,
+          height: height
+        };
+      }
+      function eligible() {
+        return Boolean(
+          container && svg && nav &&
+          window.innerWidth > 720 &&
+          html.getAttribute('data-embed') !== 'true' &&
+          (!window.matchMedia || !window.matchMedia('print').matches) &&
+          visible(nav)
+        );
+      }
+      function cameraAtBaseline() {
+        var scale = Number(svg && svg.getAttribute('data-view-scale'));
+        return !Number.isFinite(scale) || Math.abs(scale - 1) < 0.001;
+      }
+      function writeReserve(next, options) {
+        options = options || {};
+        next = Math.max(0, Math.ceil(next));
+        if (Math.abs(next - reserve) < 1) return false;
+        reserve = next;
+        if (reserve) {
+          if (options.remember !== false) restorableReserve = reserve;
+          container.style.setProperty('--archify-nav-reserve', reserve + 'px');
+          container.setAttribute('data-nav-stage-rail', 'true');
+          html.setAttribute('data-nav-stage-rail', 'true');
+        } else {
+          container.style.removeProperty('--archify-nav-reserve');
+          container.removeAttribute('data-nav-stage-rail');
+          html.removeAttribute('data-nav-stage-rail');
+        }
+        if (Archify.readerLayout && typeof Archify.readerLayout.schedule === 'function') {
+          Archify.readerLayout.schedule();
+        }
+        if (options.quiet !== true) {
+          if (settleFrame) cancelAnimationFrame(settleFrame);
+          settleFrame = requestAnimationFrame(function () {
+            settleFrame = 0;
+            schedule();
+          });
+        }
+        return true;
+      }
+      function clear(options) {
+        options = options || {};
+        railLatched = false;
+        if (options.preserveBaseline !== true) {
+          baselineIntersectionArea = 0;
+          baselineStageGap = null;
+          restorableReserve = 0;
+        }
+        writeReserve(0, { quiet: probingBaseline });
+        lastReceipt = {
+          eligible: false,
+          active: false,
+          reserve: 0,
+          gap: SAFE_GAP,
+          baselineStageGap: null,
+          stageGap: null,
+          stageIntersectionArea: 0,
+          baselineIntersectionArea: 0,
+          intersectionArea: 0
+        };
+        return lastReceipt;
+      }
+      function measure() {
+        frame = 0;
+        if (probingBaseline) return null;
+        if (!eligible()) return clear({ preserveBaseline: !cameraAtBaseline() });
+
+        /* Camera transforms enlarge and translate authored paint inside the
+           fixed, clipped root SVG viewport. They must not redefine the
+           reader's baseline rail.
+           Restore that baseline after temporary mobile/embed/print states.
+           Camera Reset preserves the established rail while viewport, mode,
+           and content changes remain responsible for baseline reprobes. */
+        if (!cameraAtBaseline()) {
+          if (reserve === 0 && restorableReserve > 0) {
+            if (writeReserve(restorableReserve)) return null;
+          }
+          var cameraNavRect = nav.getBoundingClientRect();
+          var cameraLegendRect = visible(legend) ? legend.getBoundingClientRect() : null;
+          var cameraStageRect = protectedStageRect();
+          var cameraIntersectionArea = usable(cameraLegendRect) && intersectionArea(cameraNavRect, cameraStageRect) > 0
+            ? intersectionArea(cameraNavRect, cameraLegendRect)
+            : 0;
+          lastReceipt = {
+            eligible: true,
+            active: reserve > 0,
+            reserve: reserve,
+            gap: SAFE_GAP,
+            baselineStageGap: baselineStageGap == null ? null : Math.round(baselineStageGap * 100) / 100,
+            stageGap: Math.round((cameraNavRect.top - cameraStageRect.bottom) * 100) / 100,
+            stageIntersectionArea: Math.round(intersectionArea(cameraNavRect, cameraStageRect) * 100) / 100,
+            baselineIntersectionArea: Math.round(baselineIntersectionArea * 100) / 100,
+            intersectionArea: Math.round(cameraIntersectionArea * 100) / 100
+          };
+          return lastReceipt;
+        }
+
+        var navRect = nav.getBoundingClientRect();
+        var legendRect = visible(legend) ? legend.getBoundingClientRect() : null;
+        var stageRect = protectedStageRect();
+        if (!usable(navRect) || !usable(stageRect)) return clear();
+
+        var actualIntersectionArea = usable(legendRect) ? intersectionArea(navRect, legendRect) : 0;
+        var stageGap = navRect.top - stageRect.bottom;
+        if (!railLatched && reserve === 0) {
+          baselineIntersectionArea = actualIntersectionArea;
+          baselineStageGap = stageGap;
+          if (stageGap < SAFE_GAP) {
+            railLatched = true;
+            if (writeReserve(Math.max(0, SAFE_GAP - stageGap))) return null;
+          }
+        } else if (railLatched && reserve > 0 && stageGap < SAFE_GAP) {
+          /* Keep the decision latched while Adaptive Reader incorporates the
+             rail. Presentation and rounded layout values can require one
+             bounded follow-up before the full stage gap is established. */
+          var remaining = Math.max(1, SAFE_GAP - stageGap);
+          if (writeReserve(reserve + remaining)) return null;
+        }
+
+        navRect = nav.getBoundingClientRect();
+        legendRect = visible(legend) ? legend.getBoundingClientRect() : null;
+        stageRect = protectedStageRect();
+        stageGap = navRect.top - stageRect.bottom;
+        lastReceipt = {
+          eligible: true,
+          active: reserve > 0,
+          reserve: reserve,
+          gap: SAFE_GAP,
+          baselineStageGap: baselineStageGap == null ? null : Math.round(baselineStageGap * 100) / 100,
+          stageGap: Math.round(stageGap * 100) / 100,
+          stageIntersectionArea: Math.round(intersectionArea(navRect, stageRect) * 100) / 100,
+          baselineIntersectionArea: Math.round(baselineIntersectionArea * 100) / 100,
+          intersectionArea: Math.round((usable(legendRect) ? intersectionArea(navRect, legendRect) : 0) * 100) / 100
+        };
+        return lastReceipt;
+      }
+      function reprobe() {
+        if (probingBaseline) return probePromise || Promise.resolve(false);
+        if (!cameraAtBaseline()) {
+          schedule();
+          return Promise.resolve(false);
+        }
+        if (!reserve && !railLatched && !restorableReserve) {
+          schedule();
+          return Promise.resolve(false);
+        }
+        probeFallbackReserve = restorableReserve || reserve;
+        probingBaseline = true;
+        railLatched = false;
+        baselineIntersectionArea = 0;
+        baselineStageGap = null;
+        restorableReserve = 0;
+        writeReserve(0, { quiet: true });
+        var readerReady = Archify.readerLayout && typeof Archify.readerLayout.whenStable === 'function'
+          ? Archify.readerLayout.whenStable().catch(function () {})
+          : Promise.resolve();
+        probePromise = readerReady.then(function () {
+          probingBaseline = false;
+          probePromise = null;
+          if (!cameraAtBaseline() && probeFallbackReserve > 0) {
+            restorableReserve = probeFallbackReserve;
+          }
+          probeFallbackReserve = 0;
+          schedule();
+          return true;
+        });
+        return probePromise;
+      }
+      function schedule() {
+        if (frame) return;
+        frame = requestAnimationFrame(measure);
+      }
+      function stableSnapshot() {
+        var containerRect = container ? container.getBoundingClientRect() : { width: 0, height: 0 };
+        var navRect = nav ? nav.getBoundingClientRect() : { top: 0, left: 0 };
+        var legendRect = legend ? legend.getBoundingClientRect() : { top: 0, left: 0 };
+        return [
+          reserve,
+          Math.round(containerRect.width * 100) / 100,
+          Math.round(containerRect.height * 100) / 100,
+          Math.round(navRect.left * 100) / 100,
+          Math.round(navRect.top * 100) / 100,
+          Math.round(legendRect.left * 100) / 100,
+          Math.round(legendRect.top * 100) / 100,
+          railLatched ? 'latched' : 'clear',
+          lastReceipt ? lastReceipt.stageGap : ''
+        ].join('|');
+      }
+      function whenStable() {
+        return Archify.waitForStableLayout({
+          schedule: schedule,
+          pending: function () { return Boolean(frame || settleFrame || probingBaseline); },
+          snapshot: stableSnapshot,
+          timeoutMessage: 'Viewer chrome layout did not reach stable dimensions.'
+        });
+      }
+
+      window.addEventListener('resize', reprobe, { passive: true });
+      window.addEventListener('load', schedule, { once: true });
+      window.addEventListener('beforeprint', schedule);
+      window.addEventListener('afterprint', reprobe);
+      if (document.fonts && document.fonts.ready) document.fonts.ready.then(reprobe).catch(function () {});
+      if (typeof ResizeObserver === 'function') {
+        var resizeObserver = new ResizeObserver(schedule);
+        [nav, svg, legend].forEach(function (element) { if (element) resizeObserver.observe(element); });
+      }
+      if (typeof MutationObserver === 'function') {
+        var contentObserver = new MutationObserver(function (records) {
+          var viewerModeChanged = records.some(function (record) { return record.target === html; });
+          if (viewerModeChanged) reprobe();
+          else schedule();
+        });
+        if (legend) contentObserver.observe(legend, { attributes: true, childList: true, subtree: true });
+        contentObserver.observe(html, {
+          attributes: true,
+          attributeFilter: ['data-embed', 'data-present', 'data-preset', 'data-theme']
+        });
+      }
+      schedule();
+
+      return {
+        measure: measure,
+        schedule: schedule,
+        reprobe: reprobe,
+        whenStable: whenStable,
+        stageRect: protectedStageRect,
+        active: function () { return reserve > 0; },
+        receipt: function () { return lastReceipt || measure(); }
+      };
+    })();
+
+    Archify.view = (function () {
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector('svg');
+      var outBtn = container.querySelector('[data-view="out"]');
+      var resetBtn = container.querySelector('[data-view="reset"]');
+      var resetDetailLabel = resetBtn.querySelector('[data-view-detail]');
+      var resetPercentLabel = resetBtn.querySelector('[data-view-percent]');
+      var inBtn = container.querySelector('[data-view="in"]');
+      var state = { scale: 1, x: 0, y: 0, mode: 'overview' };
+      var drag = null;
+      var cameraTimer = null;
+      var cameraFrame = null;
+      var cameraGeneration = 0;
+      var cameraTransaction = null;
+      var clipFrame = 0;
+      var resizeFrame = 0;
+      var autoScrollUntil = 0;
+
+      var viewBox = svg.viewBox && svg.viewBox.baseVal;
+
+      function clamp() {
+        var width = svg.clientWidth || 1;
+        var height = svg.clientHeight || 1;
+        state.x = Math.min(0, Math.max(width - width * state.scale, state.x));
+        state.y = Math.min(0, Math.max(height - height * state.scale, state.y));
+      }
+      function reducedMotion() {
+        return window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches;
+      }
+      function contentMetrics() {
+        if (!viewBox || viewBox.width <= 0 || viewBox.height <= 0) return null;
+        var width = svg.clientWidth || 1;
+        var height = svg.clientHeight || 1;
+        var scale = Math.min(width / viewBox.width, height / viewBox.height);
+        return {
+          width: width,
+          height: height,
+          scale: scale,
+          offsetX: (width - viewBox.width * scale) / 2,
+          offsetY: (height - viewBox.height * scale) / 2
+        };
+      }
+      function logicalViewport() {
+        var metrics = contentMetrics();
+        if (!metrics) return null;
+        var x;
+        var y;
+        var width;
+        var height;
+        if (window.innerWidth <= 720 && container.hasAttribute('data-wide-diagram')) {
+          x = viewBox.x + container.scrollLeft / metrics.scale;
+          y = viewBox.y;
+          width = Math.min(viewBox.width, Math.max(1, container.clientWidth / metrics.scale));
+          height = viewBox.height;
+        } else {
+          x = viewBox.x + ((-state.x / state.scale) - metrics.offsetX) / metrics.scale;
+          y = viewBox.y + ((-state.y / state.scale) - metrics.offsetY) / metrics.scale;
+          width = Math.min(viewBox.width, metrics.width / state.scale / metrics.scale);
+          height = Math.min(viewBox.height, metrics.height / state.scale / metrics.scale);
+        }
+        width = Math.max(1, Math.min(viewBox.width, width));
+        height = Math.max(1, Math.min(viewBox.height, height));
+        x = Math.max(viewBox.x, Math.min(viewBox.x + viewBox.width - width, x));
+        y = Math.max(viewBox.y, Math.min(viewBox.y + viewBox.height - height, y));
+        return { x: x, y: y, width: width, height: height, scale: state.scale };
+      }
+      function detailLevel() {
+        if (state.mode === 'semantic') return 'full';
+        if (state.scale >= 1.75) return 'full';
+        if (state.scale >= 1) return 'read';
+        return 'map';
+      }
+      function renderControls() {
+        var semantic = state.mode === 'semantic' && state.scale > 1.01;
+        var detail = detailLevel();
+        var percent = Math.round(state.scale * 100) + '%';
+        var levelLabel = viewerText('viewer.nav.level.' + detail);
+        var detailHint = detail === 'map'
+          ? viewerText('viewer.nav.detail.map')
+          : detail === 'read'
+            ? viewerText('viewer.nav.detail.read')
+            : viewerText('viewer.nav.detail.full');
+        var resolvedLevel = semantic ? viewerText('viewer.nav.level.auto') : levelLabel;
+        var showDetailLevel = semantic || detail !== 'read';
+        if (resetDetailLabel) {
+          resetDetailLabel.textContent = resolvedLevel;
+          resetDetailLabel.hidden = !showDetailLevel;
+        }
+        if (resetPercentLabel) resetPercentLabel.textContent = percent;
+        resetBtn.toggleAttribute('data-detail-visible', showDetailLevel);
+        resetBtn.title = viewerText('viewer.nav.camera.title', {
+          semantic: semantic ? viewerText('viewer.nav.camera.semantic') : '',
+          hint: detailHint
+        });
+        resetBtn.setAttribute('aria-label', viewerText('viewer.nav.camera', { hint: detailHint }));
+        resetBtn.setAttribute('data-detail-level', detail);
+        container.setAttribute('data-detail-level', detail);
+        container.setAttribute('data-camera-mode', state.mode);
+        container.setAttribute('data-camera-indicator', semantic ? 'true' : 'false');
+      }
+      function clipToViewport(camera) {
+        camera = camera || state;
+        if (camera.scale <= 1.001) {
+          svg.style.removeProperty('clip-path');
+          return;
+        }
+        var width = svg.clientWidth || 1;
+        var height = svg.clientHeight || 1;
+        var scale = camera.scale;
+        var top = Math.max(0, Math.min(height, -camera.y / scale));
+        var left = Math.max(0, Math.min(width, -camera.x / scale));
+        var right = Math.max(0, Math.min(width, width - (width - camera.x) / scale));
+        var bottom = Math.max(0, Math.min(height, height - (height - camera.y) / scale));
+        svg.style.clipPath = 'inset(' + [top, right, bottom, left].map(function (value) {
+          return Math.round(value * 1000) / 1000 + 'px';
+        }).join(' ') + ')';
+      }
+      function cameraSettled(rendered) {
+        return Math.abs(rendered.scale - state.scale) < 0.001 &&
+          Math.abs(rendered.x - state.x) < 0.05 &&
+          Math.abs(rendered.y - state.y) < 0.05;
+      }
+      function syncViewportClip() {
+        if (clipFrame) cancelAnimationFrame(clipFrame);
+        clipFrame = 0;
+        function sample() {
+          clipFrame = 0;
+          var rendered = sampleRenderedState();
+          clipToViewport(rendered);
+          if (!cameraSettled(rendered)) clipFrame = requestAnimationFrame(sample);
+        }
+        sample();
+      }
+      function apply() {
+        clamp();
+        svg.style.transform = 'translate(' + state.x + 'px,' + state.y + 'px) scale(' + state.scale + ')';
+        syncViewportClip();
+        renderControls();
+        outBtn.disabled = state.scale <= 1;
+        inBtn.disabled = state.scale >= 3;
+        container.classList.toggle('is-pannable', state.scale > 1);
+        svg.setAttribute('data-view-scale', String(state.scale));
+        if (Archify.radar && typeof Archify.radar.sync === 'function') Archify.radar.sync();
+        if (Archify.viewerChromeLayout && typeof Archify.viewerChromeLayout.schedule === 'function') {
+          Archify.viewerChromeLayout.schedule();
+        }
+      }
+      function sampleRenderedState() {
+        var transform = '';
+        try { transform = getComputedStyle(svg).transform || ''; } catch (_) {}
+        var match = transform.match(/^matrix\(([^)]+)\)$/);
+        if (!match) return { scale: state.scale, x: state.x, y: state.y, mode: state.mode };
+        var values = match[1].split(',').map(Number);
+        if (values.length !== 6 || !values.every(Number.isFinite)) {
+          return { scale: state.scale, x: state.x, y: state.y, mode: state.mode };
+        }
+        return { scale: values[0], x: values[4], y: values[5], mode: state.mode };
+      }
+      function finishCameraTransaction(transaction, outcome) {
+        if (!transaction || transaction.settled) return false;
+        transaction.settled = true;
+        transaction.state = outcome || 'complete';
+        if (transaction.frame) cancelAnimationFrame(transaction.frame);
+        if (transaction.timer) clearTimeout(transaction.timer);
+        transaction.frame = null;
+        transaction.timer = null;
+        if (cameraTransaction === transaction) cameraTransaction = null;
+        cameraFrame = null;
+        cameraTimer = null;
+        container.classList.remove('is-camera-moving');
+        container.classList.remove('is-camera-transaction');
+        container.removeAttribute('data-camera-transaction');
+        if (Archify.focus && Archify.focus.reposition) Archify.focus.reposition();
+        transaction.resolve({ id: transaction.id, state: transaction.state });
+        return true;
+      }
+      function cameraReceipt(target, options) {
+        var resolver;
+        var transaction = {
+          id: ++cameraGeneration,
+          state: 'running',
+          target: target,
+          settled: false,
+          frame: null,
+          timer: null,
+          finished: new Promise(function (resolve) { resolver = resolve; }),
+          resolve: resolver,
+          cancel: function (reason, commitTarget) {
+            if (transaction.settled) return false;
+            if (commitTarget && transaction.target) {
+              if (Object.prototype.hasOwnProperty.call(transaction.target, 'scrollLeft')) {
+                container.scrollLeft = transaction.target.scrollLeft;
+              } else {
+                state = {
+                  scale: transaction.target.scale,
+                  x: transaction.target.x,
+                  y: transaction.target.y,
+                  mode: transaction.target.mode
+                };
+                apply();
+              }
+            }
+            return finishCameraTransaction(transaction, reason || 'cancelled');
+          }
+        };
+        return transaction;
+      }
+      function stopCameraMotion(reason, commitTarget) {
+        if (cameraTransaction && !cameraTransaction.settled) {
+          cameraTransaction.cancel(reason || 'cancelled', commitTarget === true);
+          return;
+        }
+        if (cameraTimer) clearTimeout(cameraTimer);
+        if (cameraFrame) cancelAnimationFrame(cameraFrame);
+        cameraTimer = null;
+        cameraFrame = null;
+        container.classList.remove('is-camera-moving');
+        container.classList.remove('is-camera-transaction');
+        container.removeAttribute('data-camera-transaction');
+      }
+      function interruptCamera(reason) {
+        if (Archify.guidedViews && Archify.guidedViews.cancelHandoff) {
+          Archify.guidedViews.cancelHandoff(reason || 'manual');
+        }
+        var rendered = sampleRenderedState();
+        stopCameraMotion(reason || 'manual', false);
+        state = rendered;
+        state.mode = 'manual';
+        apply();
+        renderControls();
+        if (Archify.guidedViews && Archify.guidedViews.isPlaying && Archify.guidedViews.isPlaying()) {
+          Archify.guidedViews.pause();
+        }
+        if (Archify.routeProbe && Archify.routeProbe.isJourneyPlaying && Archify.routeProbe.isJourneyPlaying()) {
+          Archify.routeProbe.pauseJourney({ preserveElapsed: true, reason: reason || 'manual' });
+        }
+      }
+      function zoom(next, options) {
+        options = options || {};
+        if (options.manual !== false) interruptCamera();
+        var previous = state.scale;
+        next = Math.max(1, Math.min(3, Math.round(next * 4) / 4));
+        if (next === previous) return;
+        var centerX = (svg.clientWidth || 1) / 2;
+        var centerY = (svg.clientHeight || 1) / 2;
+        var contentX = (centerX - state.x) / previous;
+        var contentY = (centerY - state.y) / previous;
+        state.scale = next;
+        state.x = centerX - contentX * next;
+        state.y = centerY - contentY * next;
+        apply();
+      }
+      function reset(options) {
+        options = options || {};
+        if (options.automatic !== true) interruptCamera();
+        else stopCameraMotion('reset', false);
+        state = { scale: 1, x: 0, y: 0, mode: 'overview' };
+        apply();
+      }
+      function centerAt(logicalX, logicalY, options) {
+        options = options || {};
+        logicalX = Number(logicalX);
+        logicalY = Number(logicalY);
+        var metrics = contentMetrics();
+        if (!metrics || !Number.isFinite(logicalX) || !Number.isFinite(logicalY)) return false;
+        interruptCamera();
+        if (window.innerWidth <= 720 && container.hasAttribute('data-wide-diagram')) {
+          state.scale = 1;
+          state.x = 0;
+          state.y = 0;
+          state.mode = 'manual';
+          apply();
+          var mobileTarget = (logicalX - viewBox.x) * metrics.scale - container.clientWidth / 2;
+          mobileTarget = Math.max(0, Math.min(svg.clientWidth - container.clientWidth, mobileTarget));
+          autoScrollUntil = Date.now() + 80;
+          try { container.scrollTo({ left: mobileTarget, behavior: options.instant ? 'auto' : 'smooth' }); }
+          catch (_) { container.scrollLeft = mobileTarget; }
+          return true;
+        }
+        var minimumScale = Math.max(1, Math.min(3, Number(options.minimumScale) || 1));
+        var requestedScale = Number(options.scale);
+        state.scale = Math.max(minimumScale, Math.min(3, Number.isFinite(requestedScale) ? requestedScale : state.scale));
+        var contentX = metrics.offsetX + (logicalX - viewBox.x) * metrics.scale;
+        var contentY = metrics.offsetY + (logicalY - viewBox.y) * metrics.scale;
+        state.x = metrics.width / 2 - contentX * state.scale;
+        state.y = metrics.height / 2 - contentY * state.scale;
+        state.mode = 'manual';
+        apply();
+        if (Archify.focus && Archify.focus.reposition) Archify.focus.reposition();
+        return true;
+      }
+      function semanticIds(ids, includeNeighbors) {
+        var seeds = {};
+        var wanted = {};
+        (ids || []).forEach(function (id) { seeds[id] = true; wanted[id] = true; });
+        if (includeNeighbors) {
+          Array.prototype.forEach.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'), function (edge) {
+            var from = edge.getAttribute('data-edge-from');
+            var to = edge.getAttribute('data-edge-to');
+            if (seeds[from] || seeds[to]) { wanted[from] = true; wanted[to] = true; }
+          });
+        }
+        return wanted;
+      }
+      function boxesFor(ids, includeNeighbors) {
+        var wanted = semanticIds(ids, includeNeighbors);
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-node-id]'))
+          .filter(function (node) { return wanted[node.getAttribute('data-node-id')]; })
+          .map(function (node) {
+            try { return node.getBBox(); } catch (_) { return null; }
+          })
+          .filter(Boolean);
+      }
+      function frameDesktop(ids, options) {
+        options = options || {};
+        var boxes = boxesFor(ids, options.includeNeighbors === true);
+        if (!boxes.length || !viewBox || viewBox.width <= 0 || viewBox.height <= 0) return false;
+        var svgWidth = svg.clientWidth || 1;
+        var svgHeight = svg.clientHeight || 1;
+        var contentScale = Math.min(svgWidth / viewBox.width, svgHeight / viewBox.height);
+        var contentOffsetX = (svgWidth - viewBox.width * contentScale) / 2;
+        var contentOffsetY = (svgHeight - viewBox.height * contentScale) / 2;
+        var minX = Math.min.apply(Math, boxes.map(function (box) { return box.x; }));
+        var minY = Math.min.apply(Math, boxes.map(function (box) { return box.y; }));
+        var maxX = Math.max.apply(Math, boxes.map(function (box) { return box.x + box.width; }));
+        var maxY = Math.max.apply(Math, boxes.map(function (box) { return box.y + box.height; }));
+        var bounds = {
+          x: contentOffsetX + minX * contentScale,
+          y: contentOffsetY + minY * contentScale,
+          width: Math.max(1, (maxX - minX) * contentScale),
+          height: Math.max(1, (maxY - minY) * contentScale)
+        };
+        var padding = options.padding || 48;
+        var left = padding;
+        var right = svgWidth - padding;
+        var top = padding;
+        var bottom = svgHeight - Math.max(padding, 72);
+        var containerRect = container.getBoundingClientRect();
+        var visibleTop = Math.max(0, -containerRect.top);
+        var visibleBottom = Math.min(svgHeight, window.innerHeight - containerRect.top);
+        if (visibleBottom - visibleTop >= 240) {
+          top = Math.max(top, visibleTop + padding);
+          bottom = Math.min(bottom, visibleBottom - Math.max(padding, 72));
+        }
+        var chip = document.getElementById('focus-chip');
+        if (chip && !chip.hidden) {
+          var lensEnd = chip.offsetLeft + chip.offsetWidth + 24 - (svg.offsetLeft || 0);
+          left = Math.max(left, Math.min(svgWidth * 0.42, lensEnd));
+        }
+        var routeReceipt = document.getElementById('route-probe');
+        if (routeReceipt && !routeReceipt.hidden && routeReceipt.hasAttribute('data-route-journey')) {
+          var receiptTop = routeReceipt.offsetTop;
+          var receiptBottom = receiptTop + routeReceipt.offsetHeight;
+          if (receiptTop < svgHeight / 2) top = Math.max(top, receiptBottom + 24);
+          else bottom = Math.min(bottom, receiptTop - 24);
+        }
+        if (right <= left || bottom <= top) return false;
+        var maxScale = options.maxScale || (options.includeNeighbors ? 1.9 : 2.15);
+        var targetScale = Math.min((right - left) / bounds.width, (bottom - top) / bounds.height) * 0.9;
+        targetScale = Math.max(1, Math.min(maxScale, targetScale));
+        if (targetScale < 1.08) targetScale = 1;
+        var target = {
+          scale: Math.round(targetScale * 100) / 100,
+          x: 0,
+          y: 0,
+          mode: 'semantic'
+        };
+        target.x = (left + right) / 2 - (bounds.x + bounds.width / 2) * target.scale;
+        target.y = (top + bottom) / 2 - (bounds.y + bounds.height / 2) * target.scale;
+        var start = sampleRenderedState();
+        stopCameraMotion('replaced', false);
+        var transaction = cameraReceipt(target, options);
+        cameraTransaction = transaction;
+        var instant = options.instant === true || reducedMotion() || document.hidden;
+        if (instant) {
+          state = target;
+          apply();
+          finishCameraTransaction(transaction, reducedMotion() ? 'reduced-motion' : (document.hidden ? 'hidden' : 'complete'));
+          return transaction;
+        }
+        var duration = Math.max(180, Math.min(520, Number(options.duration) || 420));
+        var startedAt = 0;
+        state = start;
+        state.mode = 'semantic';
+        apply();
+        container.classList.add('is-camera-moving');
+        container.classList.add('is-camera-transaction');
+        container.setAttribute('data-camera-transaction', String(transaction.id));
+        var step = function (timestamp) {
+          if (cameraTransaction !== transaction || transaction.settled) return;
+          if (!startedAt) startedAt = timestamp;
+          var fraction = Math.max(0, Math.min(1, (timestamp - startedAt) / duration));
+          var eased = 1 - Math.pow(1 - fraction, 3);
+          state = {
+            scale: start.scale + (target.scale - start.scale) * eased,
+            x: start.x + (target.x - start.x) * eased,
+            y: start.y + (target.y - start.y) * eased,
+            mode: 'semantic'
+          };
+          apply();
+          if (fraction < 1) {
+            transaction.frame = requestAnimationFrame(step);
+            cameraFrame = transaction.frame;
+          } else {
+            state = target;
+            apply();
+            finishCameraTransaction(transaction, 'complete');
+          }
+        };
+        transaction.frame = requestAnimationFrame(step);
+        cameraFrame = transaction.frame;
+        return transaction;
+      }
+      function reveal(ids, options) {
+        options = options || {};
+        if (window.innerWidth > 720) return frameDesktop(ids, options);
+        stopCameraMotion('replaced', false);
+        state.scale = 1;
+        state.x = 0;
+        state.y = 0;
+        state.mode = 'semantic';
+        apply();
+        if (!container.hasAttribute('data-wide-diagram')) {
+          var contained = cameraReceipt({ scale: 1, x: 0, y: 0, mode: 'semantic' }, options);
+          cameraTransaction = contained;
+          finishCameraTransaction(contained, 'complete');
+          return contained;
+        }
+        var boxes = boxesFor(ids, options.includeNeighbors === true);
+        if (!boxes.length || !viewBox || viewBox.width <= 0) return false;
+        var minX = Math.min.apply(Math, boxes.map(function (box) { return box.x; }));
+        var maxX = Math.max.apply(Math, boxes.map(function (box) { return box.x + box.width; }));
+        var center = ((minX + maxX) / 2 / viewBox.width) * (svg.clientWidth || 1);
+        var target = Math.max(0, Math.min(svg.clientWidth - container.clientWidth, center - container.clientWidth / 2));
+        var transaction = cameraReceipt({ scrollLeft: target }, options);
+        cameraTransaction = transaction;
+        var instant = options.instant === true || reducedMotion() || document.hidden;
+        autoScrollUntil = Date.now() + (instant ? 50 : 470);
+        try { container.scrollTo({ left: target, behavior: instant ? 'auto' : 'smooth' }); }
+        catch (_) { container.scrollLeft = target; }
+        if (instant) finishCameraTransaction(transaction, reducedMotion() ? 'reduced-motion' : (document.hidden ? 'hidden' : 'complete'));
+        else {
+          transaction.timer = setTimeout(function () { finishCameraTransaction(transaction, 'complete'); }, 460);
+          cameraTimer = transaction.timer;
+          container.classList.add('is-camera-moving');
+          container.setAttribute('data-camera-transaction', String(transaction.id));
+        }
+        return transaction;
+      }
+      function syncSemantic() {
+        var guided = Archify.guidedViews && typeof Archify.guidedViews.focus === 'function'
+          ? Archify.guidedViews.focus() : [];
+        if (guided && guided.length) return reveal(guided, { reason: 'guided-sync' });
+        var active = Archify.focus && typeof Archify.focus.active === 'function' ? Archify.focus.active() : null;
+        if (typeof active === 'string') return reveal([active], { includeNeighbors: true, reason: 'focus-sync' });
+        if (Array.isArray(active) && active.length) return reveal(active, { reason: 'selection-sync' });
+        return false;
+      }
+      function pinControls() {
+        container.style.setProperty('--archify-scroll-x', container.scrollLeft + 'px');
+      }
+      function onScroll() {
+        pinControls();
+        if (Archify.radar && typeof Archify.radar.sync === 'function') Archify.radar.sync();
+        if (window.innerWidth <= 720 && container.hasAttribute('data-wide-diagram') && Date.now() > autoScrollUntil) {
+          interruptCamera();
+        }
+      }
+      function onPointerEnd(event) {
+        if (!drag) return;
+        var moved = drag.moved;
+        drag = null;
+        container.classList.remove('is-panning');
+        try { container.releasePointerCapture(event.pointerId); } catch (_) {}
+        if (moved) {
+          container.setAttribute('data-just-panned', 'true');
+          setTimeout(function () { container.removeAttribute('data-just-panned'); }, 80);
+        }
+      }
+
+      inBtn.addEventListener('click', function () { zoom(state.scale + 0.25); });
+      outBtn.addEventListener('click', function () { zoom(state.scale - 0.25); });
+      resetBtn.addEventListener('click', reset);
+      container.addEventListener('pointerdown', function (event) {
+        if (state.scale <= 1 || event.button !== 0 || event.target.closest('.diagram-nav, .focus-chip, .node-finder, .diagram-guide, .overview-map, .route-probe, .semantic-lens') || event.target.closest('[data-node-id]') || event.target.closest('[data-relationship-hit-key]')) return;
+        interruptCamera();
+        drag = { startX: event.clientX, startY: event.clientY, x: state.x, y: state.y, moved: false };
+        container.classList.add('is-panning');
+        try { container.setPointerCapture(event.pointerId); } catch (_) {}
+      });
+      container.addEventListener('pointermove', function (event) {
+        if (!drag) return;
+        var dx = event.clientX - drag.startX;
+        var dy = event.clientY - drag.startY;
+        if (Math.abs(dx) + Math.abs(dy) > 3) drag.moved = true;
+        state.x = drag.x + dx;
+        state.y = drag.y + dy;
+        apply();
+      });
+      container.addEventListener('pointerup', onPointerEnd);
+      container.addEventListener('pointercancel', onPointerEnd);
+      container.addEventListener('scroll', onScroll, { passive: true });
+      window.addEventListener('resize', function () {
+        if (resizeFrame) cancelAnimationFrame(resizeFrame);
+        resizeFrame = requestAnimationFrame(function () {
+          resizeFrame = 0;
+          if (state.mode === 'semantic') syncSemantic();
+          else apply();
+        });
+      });
+      window.addEventListener('hashchange', function () { requestAnimationFrame(syncSemantic); });
+      apply();
+      pinControls();
+      requestAnimationFrame(syncSemantic);
+
+      return {
+        zoomIn: function () { zoom(state.scale + 0.25); },
+        zoomOut: function () { zoom(state.scale - 0.25); },
+        reset: reset,
+        reveal: reveal,
+        centerAt: centerAt,
+        logicalViewport: logicalViewport,
+        sync: syncSemantic,
+        state: function () { return { scale: state.scale, x: state.x, y: state.y, mode: state.mode }; }
+      };
+    })();
+
+    /* ============================================================
+       Semantic Radar — simplified semantic bounds + live viewport.
+       The radar is built at runtime so the checked artifact still contains
+       one canonical SVG block, and export serialization remains untouched.
+       ============================================================ */
+    Archify.radar = (function () {
+      var container = document.querySelector('.diagram-container');
+      var diagram = container.querySelector(':scope > svg');
+      var panel = document.getElementById('overview-map');
+      var panelHead = panel.querySelector('.overview-map-head');
+      var surface = document.getElementById('overview-map-surface');
+      var status = document.getElementById('overview-map-status');
+      var trigger = document.getElementById('btn-overview-map');
+      var closeBtn = document.getElementById('overview-map-close');
+      var expandBtn = document.getElementById('overview-map-expand');
+      var feedback = document.getElementById('overview-map-feedback');
+      var navigation = container.querySelector('.diagram-nav');
+      var passport = document.getElementById('focus-chip');
+      var namespace = 'http://www.w3.org/2000/svg';
+      var viewBox = diagram.viewBox && diagram.viewBox.baseVal;
+      var mapSvg = document.createElementNS(namespace, 'svg');
+      var nodeLayer = document.createElementNS(namespace, 'g');
+      var viewport = document.createElementNS(namespace, 'rect');
+      var nodes = [];
+      var viewportDrag = null;
+      var panelDrag = null;
+      var manualPosition = null;
+      var lastPlacement = null;
+      var requestedOpen = false;
+      var passportYielded = false;
+      var passportPreviousAriaHidden = null;
+      var syncFrame = 0;
+      var spaceRetryTimer = 0;
+      var spaceRetryCount = 0;
+      var placementGap = 16;
+
+      mapSvg.setAttribute('role', 'group');
+      mapSvg.setAttribute('aria-label', viewerText('viewer.radar.nodes'));
+      mapSvg.setAttribute('preserveAspectRatio', 'xMidYMid meet');
+      nodeLayer.setAttribute('class', 'overview-map-nodes');
+      viewport.setAttribute('class', 'overview-map-viewport');
+      viewport.setAttribute('rx', '3');
+      viewport.setAttribute('ry', '3');
+      mapSvg.appendChild(nodeLayer);
+      mapSvg.appendChild(viewport);
+      surface.appendChild(mapSvg);
+
+      function nodeLabel(node, fallback) {
+        return node.getAttribute('data-node-label') ||
+          (node.getAttribute('aria-label') || fallback).replace(/^Focus\s+/, '').split(',')[0];
+      }
+      function build() {
+        if (!viewBox || viewBox.width <= 0 || viewBox.height <= 0) return false;
+        mapSvg.setAttribute('viewBox', [viewBox.x, viewBox.y, viewBox.width, viewBox.height].join(' '));
+        nodeLayer.textContent = '';
+        nodes = [];
+        Array.prototype.forEach.call(diagram.querySelectorAll('[data-node-id]'), function (node) {
+          var box;
+          try { box = node.getBBox(); } catch (_) { box = null; }
+          if (!box || box.width <= 0 || box.height <= 0) return;
+          var id = node.getAttribute('data-node-id');
+          var rect = document.createElementNS(namespace, 'rect');
+          rect.setAttribute('class', 'overview-map-node');
+          rect.setAttribute('x', String(box.x));
+          rect.setAttribute('y', String(box.y));
+          rect.setAttribute('width', String(Math.max(3, box.width)));
+          rect.setAttribute('height', String(Math.max(3, box.height)));
+          rect.setAttribute('rx', String(Math.max(2, Math.min(8, Math.min(box.width, box.height) * 0.1))));
+          rect.setAttribute('data-radar-node-id', id);
+          rect.setAttribute('data-kind', node.getAttribute('data-node-kind') || 'neutral');
+          rect.setAttribute('tabindex', '0');
+          rect.setAttribute('role', 'button');
+          rect.setAttribute('aria-label', viewerText('viewer.radar.focus', { label: nodeLabel(node, id) }));
+          nodeLayer.appendChild(rect);
+          nodes.push({ id: id, node: node, rect: rect });
+        });
+        status.textContent = viewerText('viewer.radar.fullMap', { count: nodes.length });
+        return true;
+      }
+      function visibleRect(element) {
+        if (!element || element.hidden) return null;
+        var rect = element.getBoundingClientRect();
+        if (rect.width <= 0 || rect.height <= 0 || rect.right <= 0 || rect.bottom <= 0 || rect.left >= window.innerWidth || rect.top >= window.innerHeight) return null;
+        return { left: rect.left, top: rect.top, right: rect.right, bottom: rect.bottom, width: rect.width, height: rect.height };
+      }
+      function panelRectAt(position) {
+        return {
+          left: position.left,
+          top: position.top,
+          right: position.left + panel.offsetWidth,
+          bottom: position.top + panel.offsetHeight,
+          width: panel.offsetWidth,
+          height: panel.offsetHeight
+        };
+      }
+      function rectsIntersect(first, second, gap) {
+        gap = Number(gap) || 0;
+        return first.left < second.right + gap &&
+          first.right > second.left - gap &&
+          first.top < second.bottom + gap &&
+          first.bottom > second.top - gap;
+      }
+      function intersectionArea(first, second) {
+        var width = Math.max(0, Math.min(first.right, second.right) - Math.max(first.left, second.left));
+        var height = Math.max(0, Math.min(first.bottom, second.bottom) - Math.max(first.top, second.top));
+        return width * height;
+      }
+      function clamp(value, minimum, maximum) {
+        if (maximum < minimum) return minimum;
+        return Math.max(minimum, Math.min(maximum, value));
+      }
+      function placementContext() {
+        var containerRect = visibleRect(container);
+        if (!containerRect) return null;
+        var controlRect = visibleRect(navigation);
+        var left = Math.max(placementGap, containerRect.left + placementGap);
+        var top = Math.max(placementGap, containerRect.top + placementGap);
+        var right = Math.min(window.innerWidth - placementGap, containerRect.right - placementGap);
+        var bottom = Math.min(window.innerHeight - placementGap, containerRect.bottom - placementGap);
+        if (controlRect) bottom = Math.min(bottom, controlRect.top - placementGap);
+        var lens = document.getElementById('focus-chip');
+        var lensRect = visibleRect(lens);
+        var legendRect = visibleRect(diagram.querySelector('[data-legend]'));
+        var active = diagram.querySelector('[data-focus-selected]');
+        var activeRect = visibleRect(active);
+        return {
+          bounds: { left: left, top: top, right: right, bottom: bottom },
+          hardBlockers: [lensRect, controlRect, legendRect].filter(Boolean),
+          softBlockers: [activeRect].filter(Boolean),
+          preferredSide: !activeRect || activeRect.left + activeRect.width / 2 > window.innerWidth / 2 ? 'left' : 'right'
+        };
+      }
+      function positionIsValid(position, context) {
+        if (!position || !context) return false;
+        var rect = panelRectAt(position);
+        var bounds = context.bounds;
+        if (rect.left < bounds.left || rect.top < bounds.top || rect.right > bounds.right || rect.bottom > bounds.bottom) return false;
+        return context.hardBlockers.every(function (blocker) { return !rectsIntersect(rect, blocker, placementGap); });
+      }
+      function cornerCandidates(context) {
+        var bounds = context.bounds;
+        var left = bounds.left;
+        var right = Math.max(left, bounds.right - panel.offsetWidth);
+        var top = bounds.top;
+        var bottom = Math.max(top, bounds.bottom - panel.offsetHeight);
+        var preferredLeft = context.preferredSide === 'left' ? left : right;
+        var alternateLeft = context.preferredSide === 'left' ? right : left;
+        return [
+          { left: preferredLeft, top: bottom },
+          { left: alternateLeft, top: bottom },
+          { left: preferredLeft, top: top },
+          { left: alternateLeft, top: top }
+        ].filter(function (candidate, index, all) {
+          return all.findIndex(function (other) { return other.left === candidate.left && other.top === candidate.top; }) === index;
+        });
+      }
+      function nearbyCandidates(context, reference) {
+        var bounds = context.bounds;
+        var maximumLeft = bounds.right - panel.offsetWidth;
+        var maximumTop = bounds.bottom - panel.offsetHeight;
+        var requested = reference ? {
+          left: clamp(reference.left, bounds.left, maximumLeft),
+          top: clamp(reference.top, bounds.top, maximumTop)
+        } : null;
+        var horizontal = [bounds.left, maximumLeft];
+        var vertical = [bounds.top, maximumTop];
+        if (requested) {
+          horizontal.push(requested.left);
+          vertical.push(requested.top);
+        }
+        context.hardBlockers.forEach(function (blocker) {
+          horizontal.push(
+            blocker.left - placementGap - panel.offsetWidth,
+            blocker.right + placementGap
+          );
+          vertical.push(
+            blocker.top - placementGap - panel.offsetHeight,
+            blocker.bottom + placementGap
+          );
+        });
+        horizontal = horizontal.map(function (left) { return clamp(left, bounds.left, maximumLeft); });
+        vertical = vertical.map(function (top) { return clamp(top, bounds.top, maximumTop); });
+        var candidates = [];
+        horizontal.forEach(function (left) {
+          vertical.forEach(function (top) { candidates.push({ left: left, top: top }); });
+        });
+        return candidates.filter(function (candidate, index, all) {
+          return all.findIndex(function (other) { return other.left === candidate.left && other.top === candidate.top; }) === index;
+        });
+      }
+      function placementScore(position, context, reference, softWeight) {
+        var rect = panelRectAt(position);
+        var referenceLeft = reference ? reference.left : (context.preferredSide === 'left' ? context.bounds.left : context.bounds.right - panel.offsetWidth);
+        var referenceTop = reference ? reference.top : context.bounds.bottom - panel.offsetHeight;
+        var distance = Math.pow(position.left - referenceLeft, 2) + Math.pow(position.top - referenceTop, 2);
+        var softOverlap = context.softBlockers.reduce(function (total, blocker) { return total + intersectionArea(rect, blocker); }, 0);
+        return distance + softOverlap * softWeight;
+      }
+      function chooseRadarPlacement(context, reference, options) {
+        options = options || {};
+        var softWeight = Number.isFinite(options.softWeight) ? options.softWeight : 100;
+        var candidates = nearbyCandidates(context, reference).concat(cornerCandidates(context));
+        var valid = candidates.filter(function (candidate) { return positionIsValid(candidate, context); });
+        valid.sort(function (first, second) {
+          return placementScore(first, context, reference, softWeight) - placementScore(second, context, reference, softWeight);
+        });
+        return valid.length ? valid[0] : null;
+      }
+      function applyPlacement(position, remember) {
+        var useLeft = position.left + panel.offsetWidth / 2 <= window.innerWidth / 2;
+        panel.setAttribute('data-docked', 'true');
+        panel.setAttribute('data-dock-side', useLeft ? 'left' : 'right');
+        if (useLeft) {
+          panel.style.setProperty('--archify-radar-left', Math.round(position.left) + 'px');
+          panel.style.removeProperty('--archify-radar-right');
+        } else {
+          panel.style.setProperty('--archify-radar-right', Math.round(window.innerWidth - position.left - panel.offsetWidth) + 'px');
+          panel.style.removeProperty('--archify-radar-left');
+        }
+        panel.style.setProperty('--archify-radar-top', Math.round(position.top) + 'px');
+        if (remember !== false) lastPlacement = { left: position.left, top: position.top };
+      }
+      function resetDockingStyles() {
+        panel.removeAttribute('data-docked');
+        panel.removeAttribute('data-dock-side');
+        panel.removeAttribute('data-panel-dragging');
+        panel.removeAttribute('data-placement-invalid');
+        panel.removeAttribute('data-placement-degraded');
+        panel.removeAttribute('data-placement-unavailable');
+        panel.removeAttribute('data-compact');
+        panel.removeAttribute('title');
+        panel.style.removeProperty('visibility');
+        panel.style.removeProperty('--archify-radar-right');
+        panel.style.removeProperty('--archify-radar-left');
+        panel.style.removeProperty('--archify-radar-top');
+      }
+      function updateDocking() {
+        var options = arguments[0] || {};
+        if (panel.hidden) return false;
+        if (panelDrag) return true;
+        panel.removeAttribute('data-compact');
+        panel.removeAttribute('data-placement-degraded');
+        panel.removeAttribute('data-placement-invalid');
+        panel.removeAttribute('data-placement-unavailable');
+        panel.removeAttribute('title');
+        panel.style.removeProperty('visibility');
+        var context = placementContext();
+        if (!context) {
+          resetDockingStyles();
+          return false;
+        }
+        var reference = manualPosition || lastPlacement;
+        var placementOptions = { softWeight: manualPosition ? 0 : 100 };
+        var placement = manualPosition && positionIsValid(manualPosition, context)
+          ? manualPosition
+          : chooseRadarPlacement(context, reference, placementOptions);
+        var compact = false;
+        if (!placement && options.allowCompact !== false) {
+          compact = true;
+          panel.setAttribute('data-compact', 'true');
+          panel.setAttribute('data-placement-degraded', 'true');
+          panel.setAttribute('title', viewerText('viewer.radar.compacted'));
+          context = placementContext();
+          placement = chooseRadarPlacement(context, reference, placementOptions);
+        }
+        if (!placement) {
+          resetDockingStyles();
+          panel.setAttribute('data-placement-unavailable', 'true');
+          return false;
+        }
+        if (manualPosition && !compact) manualPosition = { left: placement.left, top: placement.top };
+        applyPlacement(placement, true);
+        return true;
+      }
+      function clearSpaceRetry() {
+        if (spaceRetryTimer) window.clearTimeout(spaceRetryTimer);
+        spaceRetryTimer = 0;
+      }
+      function yieldPassport() {
+        if (!passport || passport.hidden || passportYielded) return passportYielded;
+        passportPreviousAriaHidden = passport.getAttribute('aria-hidden');
+        passportYielded = true;
+        passport.setAttribute('data-radar-yielded', 'true');
+        passport.setAttribute('aria-hidden', 'true');
+        return true;
+      }
+      function restorePassport() {
+        if (!passport || !passportYielded) return;
+        passportYielded = false;
+        passport.removeAttribute('data-radar-yielded');
+        if (passportPreviousAriaHidden === null) passport.removeAttribute('aria-hidden');
+        else passport.setAttribute('aria-hidden', passportPreviousAriaHidden);
+        passportPreviousAriaHidden = null;
+      }
+      function reflectVisible() {
+        panel.hidden = false;
+        panel.removeAttribute('data-placement-unavailable');
+        trigger.setAttribute('aria-expanded', 'true');
+        trigger.removeAttribute('data-radar-space-limited');
+        trigger.setAttribute('aria-label', viewerText('viewer.radar.close'));
+        trigger.title = viewerText('viewer.nav.radar.title');
+        feedback.hidden = true;
+      }
+      function scheduleSpaceRetry() {
+        if (!requestedOpen || spaceRetryTimer || spaceRetryCount >= 4) return;
+        spaceRetryCount += 1;
+        spaceRetryTimer = window.setTimeout(function () {
+          spaceRetryTimer = 0;
+          attemptRequestedOpen();
+        }, 60);
+      }
+      function reflectUnavailable() {
+        restorePassport();
+        panel.hidden = true;
+        panel.setAttribute('data-placement-unavailable', 'true');
+        trigger.setAttribute('aria-expanded', 'false');
+        trigger.setAttribute('aria-label', viewerText('viewer.radar.cancelWaiting'));
+        trigger.setAttribute('data-radar-space-limited', 'true');
+        trigger.title = viewerText('viewer.radar.needsSpace');
+        feedback.hidden = false;
+        scheduleSpaceRetry();
+      }
+      function attemptRequestedOpen(options) {
+        options = options || {};
+        if (!requestedOpen) return false;
+        panel.hidden = false;
+        if (!updateDocking(options)) {
+          reflectUnavailable();
+          return false;
+        }
+        clearSpaceRetry();
+        spaceRetryCount = 0;
+        reflectVisible();
+        sync();
+        if (options.focus === true && !panel.hasAttribute('data-compact')) surface.focus();
+        return true;
+      }
+      function expandCompactRadar() {
+        if (!requestedOpen || panel.hidden || !panel.hasAttribute('data-compact')) return false;
+        yieldPassport();
+        if (!updateDocking({ allowCompact: false })) {
+          restorePassport();
+          if (!updateDocking()) {
+            reflectUnavailable();
+            return false;
+          }
+        }
+        reflectVisible();
+        sync();
+        if (!panel.hasAttribute('data-compact')) surface.focus();
+        return !panel.hasAttribute('data-compact');
+      }
+      function syncNow() {
+        syncFrame = 0;
+        if (panel.hidden || !Archify.view || typeof Archify.view.logicalViewport !== 'function') return;
+        if (!updateDocking()) {
+          reflectUnavailable();
+          return;
+        }
+        if (passportYielded && panel.hasAttribute('data-compact')) {
+          restorePassport();
+          if (!updateDocking()) {
+            reflectUnavailable();
+            return;
+          }
+        }
+        reflectVisible();
+        var visible = Archify.view.logicalViewport();
+        if (!visible) return;
+        viewport.setAttribute('x', String(visible.x));
+        viewport.setAttribute('y', String(visible.y));
+        viewport.setAttribute('width', String(visible.width));
+        viewport.setAttribute('height', String(visible.height));
+        var full = visible.width >= viewBox.width * 0.98 && visible.height >= viewBox.height * 0.98;
+        var mobileWide = window.innerWidth <= 720 && container.hasAttribute('data-wide-diagram');
+        var viewportCopy = full
+          ? viewerText('viewer.radar.viewport.full')
+          : (mobileWide
+            ? viewerText('viewer.radar.viewport.width', { percent: Math.round(visible.width / viewBox.width * 100) })
+            : viewerText('viewer.radar.viewport.scale', { percent: Math.round(visible.scale * 100) }));
+        status.textContent = viewerText('viewer.radar.status', { count: nodes.length, viewport: viewportCopy });
+        nodes.forEach(function (item) {
+          var active = item.node.hasAttribute('data-focus-selected') ||
+            item.node.getAttribute('data-story-beat-state') === 'active';
+          if (active) item.rect.setAttribute('data-radar-active', 'true');
+          else item.rect.removeAttribute('data-radar-active');
+        });
+      }
+      function sync() {
+        if (requestedOpen && panel.hidden) {
+          attemptRequestedOpen();
+          return;
+        }
+        if (syncFrame) return;
+        syncFrame = requestAnimationFrame(syncNow);
+      }
+      function setOpen(next, options) {
+        options = options || {};
+        next = Boolean(next);
+        if (next && Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (next && Archify.semanticLens && Archify.semanticLens.isOpen()) {
+          Archify.semanticLens.close({ restoreFocus: false });
+        }
+        requestedOpen = next;
+        if (next) {
+          clearSpaceRetry();
+          spaceRetryCount = 0;
+          build();
+          attemptRequestedOpen(options);
+        } else {
+          clearSpaceRetry();
+          spaceRetryCount = 0;
+          viewportDrag = null;
+          panelDrag = null;
+          container.classList.remove('is-panning');
+          panel.hidden = true;
+          resetDockingStyles();
+          restorePassport();
+          feedback.hidden = true;
+          trigger.setAttribute('aria-expanded', 'false');
+          trigger.removeAttribute('data-radar-space-limited');
+          trigger.setAttribute('aria-label', viewerText('viewer.nav.radar'));
+          trigger.title = viewerText('viewer.nav.radar.title');
+          if (options.restoreFocus === true) trigger.focus();
+        }
+        return next;
+      }
+      function toggle() { return setOpen(!requestedOpen, { focus: false }); }
+      function close(options) { return setOpen(false, options); }
+      function bringNodeIntoWindow(node) {
+        var delay = window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches ? 0 : 540;
+        window.setTimeout(function () {
+          var rect = node.getBoundingClientRect();
+          var safeTop = 64;
+          var safeBottom = window.innerHeight - 64;
+          if (rect.top >= safeTop && rect.bottom <= safeBottom) return;
+          var top = Math.max(0, window.scrollY + rect.top + rect.height / 2 - window.innerHeight / 2);
+          try { window.scrollTo({ top: top, behavior: delay ? 'smooth' : 'auto' }); }
+          catch (_) { window.scrollTo(0, top); }
+        }, delay);
+      }
+      function focusNode(id) {
+        var main = diagram.querySelector('[data-node-id="' + id + '"]');
+        if (!main) return false;
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        if (Archify.focus && typeof Archify.focus.set === 'function') {
+          Archify.focus.set(id, { toggle: false });
+        }
+        if (Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal([id], { includeNeighbors: true, reason: 'radar' });
+        }
+        bringNodeIntoWindow(main);
+        try { main.focus({ preventScroll: true }); } catch (_) { try { main.focus(); } catch (_) {} }
+        sync();
+        return true;
+      }
+      function diagramPoint(event) {
+        var matrix = mapSvg.getScreenCTM();
+        if (!matrix) return null;
+        var point = mapSvg.createSVGPoint();
+        point.x = event.clientX;
+        point.y = event.clientY;
+        return point.matrixTransform(matrix.inverse());
+      }
+      function navigate(event) {
+        var point = diagramPoint(event);
+        if (!point || !Archify.view || typeof Archify.view.centerAt !== 'function') return;
+        Archify.view.centerAt(point.x, point.y, { minimumScale: 1.5, instant: true });
+        sync();
+      }
+      function endViewportDrag(event) {
+        if (!viewportDrag) return;
+        viewportDrag = null;
+        panel.removeAttribute('data-dragging');
+        container.classList.remove('is-panning');
+        try { surface.releasePointerCapture(event.pointerId); } catch (_) {}
+      }
+      function beginPanelDrag(event) {
+        if (event.button !== 0 || event.target.closest('button, a, input, [role="button"]')) return;
+        var context = placementContext();
+        if (!context) return;
+        var rect = panel.getBoundingClientRect();
+        event.preventDefault();
+        event.stopPropagation();
+        panelDrag = {
+          pointerId: event.pointerId,
+          originX: event.clientX,
+          originY: event.clientY,
+          start: { left: rect.left, top: rect.top },
+          current: { left: rect.left, top: rect.top },
+          previousManual: manualPosition ? { left: manualPosition.left, top: manualPosition.top } : null
+        };
+        panel.setAttribute('data-panel-dragging', 'true');
+        try { panelHead.setPointerCapture(event.pointerId); } catch (_) {}
+      }
+      function movePanelDrag(event) {
+        if (!panelDrag || panelDrag.pointerId !== event.pointerId) return;
+        var context = placementContext();
+        if (!context) return;
+        event.preventDefault();
+        event.stopPropagation();
+        var bounds = context.bounds;
+        var position = {
+          left: clamp(panelDrag.start.left + event.clientX - panelDrag.originX, bounds.left, bounds.right - panel.offsetWidth),
+          top: clamp(panelDrag.start.top + event.clientY - panelDrag.originY, bounds.top, bounds.bottom - panel.offsetHeight)
+        };
+        panelDrag.current = position;
+        if (positionIsValid(position, context)) panel.removeAttribute('data-placement-invalid');
+        else panel.setAttribute('data-placement-invalid', 'true');
+        applyPlacement(position, false);
+      }
+      function finishPanelDrag(event, cancel) {
+        if (!panelDrag || panelDrag.pointerId !== event.pointerId) return;
+        event.preventDefault();
+        event.stopPropagation();
+        var activeDrag = panelDrag;
+        panelDrag = null;
+        panel.removeAttribute('data-panel-dragging');
+        panel.removeAttribute('data-placement-invalid');
+        try { panelHead.releasePointerCapture(event.pointerId); } catch (_) {}
+        var context = placementContext();
+        if (!context) return;
+        if (cancel) {
+          manualPosition = activeDrag.previousManual;
+          lastPlacement = { left: activeDrag.start.left, top: activeDrag.start.top };
+          updateDocking();
+          return;
+        }
+        var requested = activeDrag.current;
+        manualPosition = { left: requested.left, top: requested.top };
+        updateDocking();
+      }
+
+      trigger.addEventListener('click', toggle);
+      closeBtn.addEventListener('click', function () { close({ restoreFocus: true }); });
+      expandBtn.addEventListener('click', expandCompactRadar);
+      panelHead.addEventListener('pointerdown', beginPanelDrag);
+      panelHead.addEventListener('pointermove', movePanelDrag);
+      panelHead.addEventListener('pointerup', function (event) { finishPanelDrag(event, false); });
+      panelHead.addEventListener('pointercancel', function (event) { finishPanelDrag(event, true); });
+      surface.addEventListener('pointerdown', function (event) {
+        if (event.button !== 0 || event.target.closest('[data-radar-node-id]')) return;
+        event.preventDefault();
+        viewportDrag = { pointerId: event.pointerId };
+        panel.setAttribute('data-dragging', 'true');
+        container.classList.add('is-panning');
+        try { surface.setPointerCapture(event.pointerId); } catch (_) {}
+        navigate(event);
+      });
+      surface.addEventListener('pointermove', function (event) {
+        if (!viewportDrag || viewportDrag.pointerId !== event.pointerId) return;
+        navigate(event);
+      });
+      surface.addEventListener('pointerup', endViewportDrag);
+      surface.addEventListener('pointercancel', endViewportDrag);
+      surface.addEventListener('click', function (event) {
+        var node = event.target.closest('[data-radar-node-id]');
+        if (node) focusNode(node.getAttribute('data-radar-node-id'));
+      });
+      surface.addEventListener('keydown', function (event) {
+        if (event.key === 'Escape') {
+          event.preventDefault();
+          event.stopPropagation();
+          close({ restoreFocus: true });
+          return;
+        }
+        var node = event.target.closest('[data-radar-node-id]');
+        if (node && (event.key === 'Enter' || event.key === ' ')) {
+          event.preventDefault();
+          focusNode(node.getAttribute('data-radar-node-id'));
+          return;
+        }
+        if (event.key !== 'ArrowLeft' && event.key !== 'ArrowRight' && event.key !== 'ArrowUp' && event.key !== 'ArrowDown') return;
+        var visible = Archify.view && Archify.view.logicalViewport ? Archify.view.logicalViewport() : null;
+        if (!visible) return;
+        event.preventDefault();
+        var x = visible.x + visible.width / 2;
+        var y = visible.y + visible.height / 2;
+        var stepX = Math.max(12, visible.width * 0.24);
+        var stepY = Math.max(12, visible.height * 0.24);
+        if (event.key === 'ArrowLeft') x -= stepX;
+        else if (event.key === 'ArrowRight') x += stepX;
+        else if (event.key === 'ArrowUp') y -= stepY;
+        else y += stepY;
+        Archify.view.centerAt(x, y, { minimumScale: 1.5, instant: true });
+        sync();
+      });
+      document.addEventListener('keydown', function (event) {
+        if (!panelDrag || event.key !== 'Escape') return;
+        finishPanelDrag({
+          pointerId: panelDrag.pointerId,
+          preventDefault: function () { event.preventDefault(); },
+          stopPropagation: function () { event.stopPropagation(); }
+        }, true);
+      }, true);
+      function reflow() {
+        if (!requestedOpen) return;
+        clearSpaceRetry();
+        spaceRetryCount = 0;
+        sync();
+      }
+      window.addEventListener('resize', reflow);
+      window.addEventListener('scroll', reflow, { passive: true });
+      if (typeof ResizeObserver === 'function') {
+        var radarResizeObserver = new ResizeObserver(function (entries) {
+          if (!requestedOpen) return;
+          if (panel.hidden && entries.every(function (entry) { return entry.target === panel; })) return;
+          reflow();
+        });
+        [container, navigation, document.getElementById('focus-chip'), panel].filter(Boolean).forEach(function (element) {
+          radarResizeObserver.observe(element);
+        });
+      }
+      requestAnimationFrame(build);
+
+      return {
+        open: function () { return setOpen(true); },
+        close: close,
+        toggle: toggle,
+        sync: sync,
+        focus: focusNode,
+        isOpen: function () { return requestedOpen; },
+        count: function () { return nodes.length; }
+      };
+    })();
+
+    /* ============================================================
+       Presentation Stage — a shareable, viewport-filling live view.
+       It changes only HTML layout and URL state; SVG semantics and export
+       serialization remain untouched. Escape first clears an active guided
+       view/focus, then exits the stage.
+       ============================================================ */
+    Archify.presentation = (function () {
+      var html = document.documentElement;
+      var btn = document.getElementById('btn-present');
+      var label = document.getElementById('present-label');
+      var previousScrollY = 0;
+
+      function active() { return html.getAttribute('data-present') === 'true'; }
+
+      function updateUrl(next) {
+        try {
+          var url = new URL(window.location.href);
+          if (next) url.searchParams.set('present', '1');
+          else url.searchParams.delete('present');
+          history.replaceState(null, '', url.pathname + url.search + url.hash);
+        } catch (_) {}
+      }
+
+      function render(next) {
+        btn.setAttribute('aria-pressed', next ? 'true' : 'false');
+        btn.setAttribute('aria-label', viewerText(next ? 'viewer.present.exit' : 'viewer.present.enter'));
+        btn.title = viewerText(next ? 'viewer.present.exit.title' : 'viewer.present.enter.title');
+        label.textContent = viewerText(next ? 'viewer.present.exit.label' : 'viewer.present.present');
+      }
+
+      function setActive(next, options) {
+        options = options || {};
+        next = Boolean(next);
+        if (next === active()) {
+          render(next);
+          return next;
+        }
+        if (next) {
+          if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+          previousScrollY = window.scrollY || 0;
+          html.setAttribute('data-present', 'true');
+          try { window.scrollTo(0, 0); } catch (_) {}
+        } else {
+          html.removeAttribute('data-present');
+        }
+        render(next);
+        if (options.updateUrl !== false) updateUrl(next);
+        requestAnimationFrame(function () {
+          if (Archify.view && typeof Archify.view.reset === 'function') {
+            Archify.view.reset({ automatic: true });
+            requestAnimationFrame(function () {
+              if (Archify.view && typeof Archify.view.sync === 'function') Archify.view.sync();
+            });
+          }
+          if (!next && previousScrollY) {
+            try { window.scrollTo(0, previousScrollY); } catch (_) {}
+          }
+        });
+        return next;
+      }
+
+      function toggle() { return setActive(!active()); }
+
+      render(active());
+      btn.addEventListener('click', toggle);
+
+      return {
+        enter: function () { return setActive(true); },
+        exit: function () { return setActive(false); },
+        toggle: toggle,
+        active: active
+      };
+    })();
+
+    /* ============================================================
+       Node Finder — stable-ID search over the existing semantic SVG.
+       Search never changes the IR or SVG geometry: selecting a result resets
+       the viewport, releases a guided view, and delegates to semantic focus.
+       ============================================================ */
+    Archify.finder = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector('svg');
+      var trigger = document.getElementById('btn-node-finder');
+      var panel = document.getElementById('node-finder');
+      var heading = document.getElementById('node-finder-title');
+      var closeBtn = document.getElementById('node-finder-close');
+      var input = document.getElementById('node-finder-input');
+      var results = document.getElementById('node-finder-results');
+      var empty = document.getElementById('node-finder-empty');
+      var status = document.getElementById('node-finder-status');
+      var visibleItems = [];
+
+      function defaultContext() {
+        return {
+          kind: 'focus',
+          title: viewerText('viewer.finder.title'),
+          placeholder: viewerText('viewer.finder.placeholder'),
+          empty: viewerText('viewer.finder.empty'),
+          resultsLabel: viewerText('viewer.finder.results'),
+          availableNoun: viewerText('viewer.finder.noun.nodes'),
+          allowedIds: null,
+          badges: null
+        };
+      }
+
+      var context = defaultContext();
+
+      function semanticType(node) {
+        var authored = node.getAttribute('data-node-kind');
+        if (authored) return authored;
+        var types = ['frontend', 'backend', 'database', 'cloud', 'security', 'messagebus', 'external'];
+        return types.find(function (type) { return node.querySelector('.c-' + type); }) || 'node';
+      }
+
+      function connectionsFor(id) {
+        var count = 0;
+        var seen = {};
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'), function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          var key = from + '\u0000' + to;
+          if ((from === id || to === id) && !seen[key]) {
+            seen[key] = true;
+            count += 1;
+          }
+        });
+        return count;
+      }
+
+      var items = Array.prototype.map.call(svg.querySelectorAll('[data-node-id]'), function (node) {
+        var id = node.getAttribute('data-node-id');
+        var label = node.getAttribute('data-node-label') || (node.getAttribute('aria-label') || id).replace(/^Focus\s+/, '');
+        var text = (node.textContent || '').replace(/\s+/g, ' ').trim();
+        var sublabel = node.getAttribute('data-node-sublabel') || '';
+        var context = node.getAttribute('data-node-context') || '';
+        var tag = node.getAttribute('data-node-tag') || '';
+        var brand = node.getAttribute('data-node-brand') || '';
+        var type = semanticType(node);
+        var sources = Archify.sourceEvidence.node(id);
+        var sourceSearch = sources.map(function (source) {
+          return [source.path, source.label, source.line, source.endLine].filter(Boolean).join(' ');
+        }).join(' ');
+        return {
+          id: id,
+          label: label,
+          type: type,
+          sublabel: sublabel,
+          context: context,
+          tag: tag,
+          brand: brand,
+          sources: sources,
+          links: connectionsFor(id),
+          search: (id + ' ' + label + ' ' + type + ' ' + sublabel + ' ' + context + ' ' + tag + ' ' + sourceSearch + ' ' + text).toLowerCase() + ' ' + brand.toLowerCase(),
+          node: node
+        };
+      });
+
+      function resultButtons() {
+        return Array.prototype.slice.call(results.querySelectorAll('.node-finder-result'));
+      }
+
+      function resolveContext(options) {
+        var requested = options && options.context ? options.context : null;
+        if (!requested && Archify.routeProbe && typeof Archify.routeProbe.finderContext === 'function') {
+          requested = Archify.routeProbe.finderContext();
+        }
+        if (!requested) return defaultContext();
+        var resolved = defaultContext();
+        Object.keys(requested).forEach(function (key) { resolved[key] = requested[key]; });
+        return resolved;
+      }
+
+      function availableItems() {
+        if (!context.allowedIds) return items.slice();
+        return items.filter(function (item) { return context.allowedIds.indexOf(item.id) !== -1; });
+      }
+
+      function applyContext() {
+        panel.setAttribute('data-context', context.kind);
+        heading.textContent = context.title;
+        input.placeholder = context.placeholder;
+        empty.textContent = context.empty;
+        results.setAttribute('aria-label', context.resultsLabel);
+      }
+
+      function select(id) {
+        var item = items.find(function (candidate) { return candidate.id === id; });
+        if (!item) return false;
+        var routeSelection = context.kind === 'route-source' || context.kind === 'route-target';
+        if (routeSelection) {
+          if (!Archify.routeProbe || typeof Archify.routeProbe.choose !== 'function' || !Archify.routeProbe.choose(id)) return false;
+          if (Archify.routeProbe.active() === 'target' && Archify.view && typeof Archify.view.reveal === 'function') {
+            Archify.view.reveal([id], { includeNeighbors: true, reason: 'route-pick' });
+          }
+          close({ restoreFocus: false });
+          try { item.node.focus({ preventScroll: true }); } catch (_) { try { item.node.focus(); } catch (_) {} }
+          return true;
+        }
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        if (Archify.view && typeof Archify.view.reset === 'function') Archify.view.reset({ automatic: true });
+        Archify.focus.set(id, { toggle: false });
+        if (Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal([id], { includeNeighbors: true, reason: 'finder' });
+        }
+        close({ restoreFocus: false });
+        try { item.node.focus({ preventScroll: true }); } catch (_) { try { item.node.focus(); } catch (_) {} }
+        return true;
+      }
+
+      function render(query) {
+        query = (query || '').trim().toLowerCase();
+        var available = availableItems();
+        visibleItems = available.filter(function (item) { return !query || item.search.indexOf(query) !== -1; });
+        results.textContent = '';
+        visibleItems.forEach(function (item) {
+          var button = document.createElement('button');
+          button.type = 'button';
+          button.className = 'node-finder-result';
+          button.setAttribute('data-node-id', item.id);
+          var badge = context.badges && context.badges[item.id]
+            ? context.badges[item.id]
+            : context.kind === 'focus'
+              ? viewerCount('viewer.finder.link', item.links)
+              : String(item.links);
+          var action = context.kind === 'route-source'
+            ? viewerText('viewer.finder.result.routeStart', { label: item.label })
+            : context.kind === 'route-target'
+              ? viewerText('viewer.finder.result.routeTarget', { label: item.label, links: badge })
+              : viewerCount('viewer.finder.result.focus', item.links, { label: item.label });
+          button.setAttribute('aria-label', action);
+
+          var name = document.createElement('strong');
+          name.textContent = item.label;
+          var links = document.createElement('em');
+          links.textContent = badge;
+          links.title = context.kind === 'focus' ? badge : action;
+          var meta = document.createElement('small');
+          meta.textContent = [viewerKindLabel(item.type), item.id, item.sublabel, item.tag].filter(Boolean).join(' \u00b7 ');
+          meta.title = [viewerKindLabel(item.type), item.id, item.context, item.sublabel, item.tag].filter(Boolean).join(' \u00b7 ');
+          button.appendChild(name);
+          button.appendChild(links);
+          button.appendChild(meta);
+          button.addEventListener('click', function () { select(item.id); });
+          results.appendChild(button);
+        });
+        empty.hidden = visibleItems.length !== 0;
+        status.textContent = query
+          ? viewerText('viewer.finder.status.filtered', {
+              visible: visibleItems.length,
+              available: available.length,
+              noun: context.availableNoun
+            })
+          : viewerText('viewer.finder.status.all', { available: available.length, noun: context.availableNoun });
+      }
+
+      function open(options) {
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (Archify.exportMenu && Archify.exportMenu.isOpen()) Archify.exportMenu.close(false);
+        if (Archify.semanticLens && Archify.semanticLens.isOpen()) Archify.semanticLens.close({ restoreFocus: false });
+        context = resolveContext(options || {});
+        applyContext();
+        panel.hidden = false;
+        trigger.setAttribute('aria-expanded', 'true');
+        if (context.kind.indexOf('route-') === 0 && Archify.routeProbe && typeof Archify.routeProbe.finderOpening === 'function') {
+          Archify.routeProbe.finderOpening();
+        }
+        input.value = '';
+        render('');
+        requestAnimationFrame(function () { input.focus(); });
+        return true;
+      }
+
+      function close(options) {
+        options = options || {};
+        var routeContext = context.kind.indexOf('route-') === 0;
+        panel.hidden = true;
+        trigger.setAttribute('aria-expanded', 'false');
+        input.value = '';
+        if (routeContext && Archify.routeProbe && typeof Archify.routeProbe.finderClosed === 'function') {
+          Archify.routeProbe.finderClosed({ restoreFocus: options.restoreFocus !== false });
+        } else if (options.restoreFocus !== false) {
+          trigger.focus();
+        }
+      }
+
+      function toggle() { return panel.hidden ? open() : (close(), false); }
+
+      trigger.addEventListener('click', toggle);
+      closeBtn.addEventListener('click', function () { close(); });
+      input.addEventListener('input', function () { render(input.value); });
+      input.addEventListener('keydown', function (event) {
+        var buttons = resultButtons();
+        if (event.key === 'ArrowDown' && buttons.length) {
+          event.preventDefault();
+          buttons[0].focus();
+        } else if (event.key === 'Enter' && visibleItems.length) {
+          event.preventDefault();
+          select(visibleItems[0].id);
+        }
+      });
+      results.addEventListener('keydown', function (event) {
+        var buttons = resultButtons();
+        var index = buttons.indexOf(document.activeElement);
+        if (index < 0 || !buttons.length) return;
+        var next = null;
+        if (event.key === 'ArrowDown') next = (index + 1) % buttons.length;
+        else if (event.key === 'ArrowUp') next = (index - 1 + buttons.length) % buttons.length;
+        else if (event.key === 'Home') next = 0;
+        else if (event.key === 'End') next = buttons.length - 1;
+        if (next !== null) {
+          event.preventDefault();
+          buttons[next].focus();
+        }
+      });
+      panel.addEventListener('keydown', function (event) {
+        if (event.key !== 'Escape') return;
+        event.preventDefault();
+        event.stopPropagation();
+        close();
+      });
+      document.addEventListener('click', function (event) {
+        if (!panel.hidden && !panel.contains(event.target) && !event.target.closest('[data-node-finder-trigger]')) close({ restoreFocus: false });
+      });
+
+      render('');
+      return {
+        open: open,
+        close: close,
+        toggle: toggle,
+        select: select,
+        isOpen: function () { return !panel.hidden; },
+        context: function () { return context.kind; },
+        count: items.length
+      };
+    })();
+
+    /* ============================================================
+       Route Probe — shortest directed path over compiled semantics.
+       The graph is read from renderer-owned stable IDs and relationship
+       endpoints. BFS order follows authored DOM edge order, so equal-length
+       choices are deterministic without adding weights or a graph runtime.
+       ============================================================ */
+    Archify.routeProbe = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector(':scope > svg');
+      var trigger = document.getElementById('btn-route-probe');
+      var panel = document.getElementById('route-probe');
+      var title = document.getElementById('route-probe-title');
+      var path = document.getElementById('route-probe-path');
+      var status = document.getElementById('route-probe-status');
+      var findBtn = document.getElementById('route-probe-find');
+      var copyBtn = document.getElementById('route-probe-copy');
+      var clearBtn = document.getElementById('route-probe-clear');
+      var journeyControls = document.getElementById('route-journey-controls');
+      var journeyPrevBtn = document.getElementById('route-journey-prev');
+      var journeyPlayBtn = document.getElementById('route-journey-play');
+      var journeyPlayIcon = document.getElementById('route-journey-play-icon');
+      var journeyPlayLabel = document.getElementById('route-journey-play-label');
+      var journeyNextBtn = document.getElementById('route-journey-next');
+      var journeyOverviewBtn = document.getElementById('route-journey-overview');
+      var namespace = 'http://www.w3.org/2000/svg';
+      var mode = 'idle';
+      var startId = null;
+      var endId = null;
+      var activeNodeIds = [];
+      var activeEdges = [];
+      var journeyIndex = -1;
+      var journeyPlaying = false;
+      var journeyComplete = false;
+      var journeyGeneration = 0;
+      var journeyTimer = null;
+      var journeyStartedAt = 0;
+      var journeyElapsedMs = 0;
+      var journeyOwnerToken = 0;
+      var JOURNEY_DWELL_MS = 1100;
+
+      function nodes() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-node-id]'));
+      }
+      function edges() {
+        return Array.prototype.slice.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'));
+      }
+      function nodesById() {
+        var out = Object.create(null);
+        nodes().forEach(function (node) { out[node.getAttribute('data-node-id')] = node; });
+        return out;
+      }
+      function nodeLabel(node, fallback) {
+        return node.getAttribute('data-node-label') ||
+          (node.getAttribute('aria-label') || fallback).replace(/^Focus\s+/, '').split(',')[0];
+      }
+      function exportSnapshot() {
+        if (mode !== 'result' || activeNodeIds.length < 2 || activeEdges.length !== activeNodeIds.length - 1) return null;
+        var allNodes = nodes();
+        var byId = nodesById();
+        var seenNodeIds = Object.create(null);
+        var seenEdgeKeys = Object.create(null);
+        if (startId !== activeNodeIds[0] || endId !== activeNodeIds[activeNodeIds.length - 1] ||
+            activeNodeIds.some(function (id) {
+              if (seenNodeIds[id] || allNodes.filter(function (node) {
+                return node.getAttribute('data-node-id') === id;
+              }).length !== 1) return true;
+              seenNodeIds[id] = true;
+              return !byId[id];
+            }) ||
+            activeEdges.some(function (edge, index) {
+              if (!edge || !svg.contains(edge)) return true;
+              var edgeKey = edge.getAttribute('data-edge-key');
+              var edgeId = edge.getAttribute('data-edge-id') || '';
+              if (!edgeKey || seenEdgeKeys[edgeKey]) return true;
+              seenEdgeKeys[edgeKey] = true;
+              var fragments = Array.prototype.slice.call(svg.querySelectorAll('[data-edge-key]')).filter(function (candidate) {
+                return candidate.getAttribute('data-edge-key') === edgeKey;
+              });
+              var drawableFragments = fragments.filter(hasDrawableGeometry);
+              return !fragments.length || !fragments.every(function (fragment) {
+                return fragment.getAttribute('data-edge-from') === activeNodeIds[index] &&
+                  fragment.getAttribute('data-edge-to') === activeNodeIds[index + 1] &&
+                  (fragment.getAttribute('data-edge-id') || '') === edgeId;
+              }) || drawableFragments.length !== 1 || drawableFragments[0] !== edge ||
+                edge.getAttribute('data-edge-from') !== activeNodeIds[index] ||
+                edge.getAttribute('data-edge-to') !== activeNodeIds[index + 1];
+            })) return null;
+        return {
+          source: { id: startId, label: nodeLabel(byId[startId], startId) },
+          target: { id: endId, label: nodeLabel(byId[endId], endId) },
+          nodeIds: activeNodeIds.slice(),
+          hops: activeEdges.length,
+          edges: activeEdges.map(function (edge) {
+            return {
+              key: edge.getAttribute('data-edge-key'),
+              id: edge.getAttribute('data-edge-id') || '',
+              from: edge.getAttribute('data-edge-from'),
+              to: edge.getAttribute('data-edge-to'),
+              label: edge.getAttribute('data-edge-label') || ''
+            };
+          })
+        };
+      }
+      function edgeShapes(edge) {
+        if (/^(path|line|polyline)$/i.test(edge.tagName)) return [edge];
+        return Array.prototype.slice.call(edge.querySelectorAll('path, line, polyline'));
+      }
+      function removeOverlay() {
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-route-probe-overlay]'), function (overlay) {
+          overlay.remove();
+        });
+      }
+      function removeJourneyPulse(options) {
+        options = options || {};
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-route-journey-overlay]'), function (overlay) {
+          overlay.remove();
+        });
+        if (journeyOwnerToken && options.release !== false && Archify.motionGovernor) {
+          var token = journeyOwnerToken;
+          journeyOwnerToken = 0;
+          Archify.motionGovernor.release(token);
+        }
+      }
+      function stopJourneyTimer(options) {
+        options = options || {};
+        journeyGeneration += 1;
+        if (journeyTimer) {
+          if (options.preserveElapsed === true && journeyStartedAt) {
+            journeyElapsedMs = Math.min(JOURNEY_DWELL_MS, journeyElapsedMs + Math.max(0, Date.now() - journeyStartedAt));
+          }
+          window.clearTimeout(journeyTimer);
+        }
+        journeyTimer = null;
+        journeyStartedAt = 0;
+        if (options.preserveElapsed !== true) journeyElapsedMs = 0;
+      }
+      function clearJourneyPresentation(options) {
+        options = options || {};
+        removeJourneyPulse();
+        svg.removeAttribute('data-route-journey');
+        panel.removeAttribute('data-route-journey');
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-route-journey-state');
+          node.removeAttribute('data-route-journey-current');
+        });
+        edges().forEach(function (edge) {
+          edge.removeAttribute('data-route-journey-state');
+          edge.removeAttribute('data-route-journey-current');
+        });
+        Array.prototype.forEach.call(path.querySelectorAll('[data-route-journey-index]'), function (button, index) {
+          button.removeAttribute('data-route-journey-state');
+          button.removeAttribute('aria-current');
+          button.setAttribute('tabindex', index === 0 ? '0' : '-1');
+        });
+        if (options.keepControls !== true) journeyControls.hidden = true;
+        journeyControls.setAttribute('data-playing', 'false');
+      }
+      function resetJourneyState() {
+        stopJourneyTimer();
+        journeyPlaying = false;
+        journeyComplete = false;
+        journeyIndex = -1;
+        clearJourneyPresentation();
+      }
+      function cleanSvgState() {
+        resetJourneyState();
+        svg.removeAttribute('data-route-picking');
+        svg.removeAttribute('data-route-active');
+        removeOverlay();
+        nodes().forEach(function (node) {
+          node.removeAttribute('data-route-match');
+          node.removeAttribute('data-route-start');
+          node.removeAttribute('data-route-end');
+          node.removeAttribute('data-route-step');
+          node.removeAttribute('data-route-candidate');
+          node.style.removeProperty('--route-step');
+        });
+        edges().forEach(function (edge) {
+          edge.removeAttribute('data-route-match');
+          edge.removeAttribute('data-route-step');
+          edge.style.removeProperty('--route-step');
+        });
+        panel.removeAttribute('data-route-dock');
+      }
+      function replaceRouteHash(value) {
+        try {
+          history.replaceState(null, '', location.pathname + location.search + (value ? '#route=' + value : ''));
+        } catch (_) {}
+      }
+      function renderPlaceholder(copy) {
+        path.textContent = '';
+        var placeholder = document.createElement('span');
+        placeholder.className = 'route-probe-placeholder';
+        placeholder.textContent = copy;
+        path.appendChild(placeholder);
+      }
+      function renderPath(ids, options) {
+        options = options || {};
+        var byId = nodesById();
+        path.textContent = '';
+        ids.forEach(function (id, index) {
+          if (index) {
+            var arrow = document.createElement('span');
+            arrow.className = 'route-probe-arrow';
+            arrow.setAttribute('aria-hidden', 'true');
+            arrow.textContent = '\u2192';
+            path.appendChild(arrow);
+          }
+          var item = document.createElement(options.interactive === true ? 'button' : 'span');
+          if (options.interactive === true) {
+            item.type = 'button';
+            item.setAttribute('data-route-journey-index', String(index));
+            item.setAttribute('data-route-node-id', id);
+            item.setAttribute('tabindex', index === 0 ? '0' : '-1');
+            item.setAttribute('aria-label', viewerText('viewer.route.position', {
+              index: index + 1,
+              total: ids.length,
+              label: nodeLabel(byId[id], id)
+            }));
+          }
+          item.className = 'route-probe-node';
+          item.textContent = nodeLabel(byId[id], id);
+          item.title = nodeLabel(byId[id], id) + ' · ' + id;
+          if (index === 0) item.setAttribute('data-endpoint', 'start');
+          if (index === ids.length - 1 && ids.length > 1) item.setAttribute('data-endpoint', 'end');
+          path.appendChild(item);
+        });
+      }
+      function setTrigger(active) {
+        trigger.setAttribute('aria-pressed', active ? 'true' : 'false');
+        trigger.setAttribute('aria-label', viewerText(active ? 'viewer.route.trigger.clear' : 'viewer.guide.route.aria'));
+      }
+      function clear(options) {
+        options = options || {};
+        var wasActive = mode !== 'idle';
+        if (Archify.finder && Archify.finder.isOpen() && typeof Archify.finder.context === 'function' && Archify.finder.context().indexOf('route-') === 0) {
+          Archify.finder.close({ restoreFocus: false });
+        }
+        mode = 'idle';
+        startId = null;
+        endId = null;
+        activeNodeIds = [];
+        activeEdges = [];
+        cleanSvgState();
+        panel.hidden = true;
+        panel.setAttribute('data-state', 'idle');
+        panel.removeAttribute('data-finder-open');
+        title.textContent = viewerText('viewer.route.start');
+        renderPlaceholder(viewerText('viewer.route.pickTwo'));
+        status.textContent = viewerText('viewer.route.instructions');
+        findBtn.hidden = true;
+        findBtn.textContent = viewerText('viewer.route.start.find');
+        findBtn.setAttribute('aria-label', viewerText('viewer.route.start.find.aria'));
+        copyBtn.hidden = true;
+        copyBtn.textContent = viewerText('viewer.route.copy');
+        if (Archify.exportMenu && typeof Archify.exportMenu.syncRouteShare === 'function') Archify.exportMenu.syncRouteShare();
+        setTrigger(false);
+        if (wasActive && options.preserveView !== true && Archify.view && typeof Archify.view.reset === 'function') {
+          Archify.view.reset({ automatic: true });
+        }
+        if (options.updateUrl !== false) replaceRouteHash('');
+        if (options.restoreFocus === true) trigger.focus();
+      }
+      function outgoingByNode() {
+        var byId = nodesById();
+        var outgoing = {};
+        edges().forEach(function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          if (!byId[from] || !byId[to] || from === to) return;
+          if (!outgoing[from]) outgoing[from] = [];
+          outgoing[from].push({ edge: edge, to: to });
+        });
+        return outgoing;
+      }
+      function reachableFrom(source) {
+        var outgoing = outgoingByNode();
+        var reached = {};
+        var queue = [source];
+        reached[source] = true;
+        for (var cursor = 0; cursor < queue.length; cursor += 1) {
+          var links = outgoing[queue[cursor]] || [];
+          links.forEach(function (link) {
+            if (reached[link.to]) return;
+            reached[link.to] = true;
+            queue.push(link.to);
+          });
+        }
+        return reached;
+      }
+      function hopDistancesFrom(source) {
+        var outgoing = outgoingByNode();
+        var distances = {};
+        var queue = [source];
+        distances[source] = 0;
+        for (var cursor = 0; cursor < queue.length; cursor += 1) {
+          var links = outgoing[queue[cursor]] || [];
+          links.forEach(function (link) {
+            if (Object.prototype.hasOwnProperty.call(distances, link.to)) return;
+            distances[link.to] = distances[queue[cursor]] + 1;
+            queue.push(link.to);
+          });
+        }
+        return distances;
+      }
+      function shortestDirectedPath(source, target) {
+        if (source === target) return null;
+        var outgoing = outgoingByNode();
+        var previous = {};
+        var queue = [source];
+        previous[source] = null;
+        for (var cursor = 0; cursor < queue.length && !Object.prototype.hasOwnProperty.call(previous, target); cursor += 1) {
+          var links = outgoing[queue[cursor]] || [];
+          links.some(function (link) {
+            if (Object.prototype.hasOwnProperty.call(previous, link.to)) return false;
+            previous[link.to] = { from: queue[cursor], edge: link.edge };
+            queue.push(link.to);
+            return link.to === target;
+          });
+        }
+        if (!Object.prototype.hasOwnProperty.call(previous, target)) return null;
+        var nodeIds = [target];
+        var routeEdges = [];
+        var current = target;
+        while (current !== source) {
+          var step = previous[current];
+          if (!step) return null;
+          routeEdges.unshift(step.edge);
+          nodeIds.unshift(step.from);
+          current = step.from;
+        }
+        return { nodes: nodeIds, edges: routeEdges };
+      }
+      function traceGeometry(shape, step) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-labelledby');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.removeAttribute('data-route-match');
+        clone.removeAttribute('data-route-step');
+        clone.setAttribute('class', 'route-probe-flow');
+        clone.setAttribute('pathLength', '1');
+        clone.style.setProperty('--route-step', String(step));
+        return clone;
+      }
+      function renderOverlay(routeEdges) {
+        removeOverlay();
+        if (!routeEdges.length) return;
+        var overlay = document.createElementNS(namespace, 'g');
+        overlay.setAttribute('class', 'route-probe-overlay');
+        overlay.setAttribute('data-route-probe-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        routeEdges.forEach(function (edge, step) {
+          var wrapper = document.createElementNS(namespace, 'g');
+          if (edge.hasAttribute('transform')) wrapper.setAttribute('transform', edge.getAttribute('transform'));
+          edgeShapes(edge).forEach(function (shape) { wrapper.appendChild(traceGeometry(shape, step)); });
+          if (wrapper.childNodes.length) overlay.appendChild(wrapper);
+        });
+        var firstNode = svg.querySelector('[data-node-id]');
+        if (firstNode) svg.insertBefore(overlay, firstNode);
+        else svg.appendChild(overlay);
+      }
+      function journeyButtons() {
+        return Array.prototype.slice.call(path.querySelectorAll('[data-route-journey-index]'));
+      }
+      function journeyMotionAllowed() {
+        return html.getAttribute('data-embed') !== 'true' &&
+          !document.hidden &&
+          Archify.motionGovernor &&
+          Archify.motionGovernor.capable === true &&
+          !Archify.motionGovernor.isPaused();
+      }
+      function routeOverviewStatus() {
+        return viewerText('viewer.route.overview.status', {
+          nodes: viewerCount('viewer.route.overview.node', activeNodeIds.length),
+          hops: viewerCount('viewer.route.overview.hop', activeEdges.length)
+        });
+      }
+      function centerJourneyButton(button) {
+        if (!button) return;
+        var target = button.offsetLeft - Math.max(0, (path.clientWidth - button.offsetWidth) / 2);
+        path.scrollLeft = Math.max(0, target);
+      }
+      function focusJourneyButton(index) {
+        var buttons = journeyButtons();
+        if (!buttons.length) return false;
+        var next = Math.max(0, Math.min(buttons.length - 1, index));
+        buttons.forEach(function (button, buttonIndex) {
+          button.setAttribute('tabindex', buttonIndex === next ? '0' : '-1');
+        });
+        try { buttons[next].focus({ preventScroll: true }); } catch (_) { buttons[next].focus(); }
+        centerJourneyButton(buttons[next]);
+        return true;
+      }
+      function renderJourneyControls() {
+        var hasRoute = mode === 'result' && activeNodeIds.length > 1;
+        var canPlay = hasRoute && journeyMotionAllowed();
+        journeyControls.hidden = !hasRoute;
+        journeyControls.setAttribute('data-playing', journeyPlaying ? 'true' : 'false');
+        journeyPrevBtn.disabled = !hasRoute || journeyIndex <= 0;
+        journeyNextBtn.disabled = !hasRoute || journeyIndex >= activeNodeIds.length - 1;
+        journeyOverviewBtn.disabled = !hasRoute || journeyIndex < 0;
+        journeyPlayBtn.disabled = !canPlay;
+        journeyPlayBtn.setAttribute('aria-pressed', journeyPlaying ? 'true' : 'false');
+        if (journeyPlaying) {
+          journeyPlayIcon.textContent = '\u275a\u275a';
+          journeyPlayLabel.textContent = viewerText('viewer.route.pause.label');
+          journeyPlayBtn.setAttribute('aria-label', viewerText('viewer.route.pause'));
+          journeyPlayBtn.title = viewerText('viewer.route.pause');
+        } else if (journeyComplete || journeyIndex === activeNodeIds.length - 1) {
+          journeyPlayIcon.textContent = '\u21bb';
+          journeyPlayLabel.textContent = viewerText('viewer.route.replay.label');
+          journeyPlayBtn.setAttribute('aria-label', viewerText('viewer.route.replay'));
+          journeyPlayBtn.title = viewerText(canPlay ? 'viewer.route.replay' : 'viewer.route.motionRequired');
+        } else {
+          journeyPlayIcon.textContent = '\u25b6';
+          journeyPlayLabel.textContent = viewerText('viewer.route.journey');
+          journeyPlayBtn.setAttribute('aria-label', viewerText('viewer.route.play'));
+          journeyPlayBtn.title = viewerText(canPlay ? 'viewer.route.play' : 'viewer.route.motionRequired');
+        }
+      }
+      function journeyGeometry(shape) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-labelledby');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.removeAttribute('data-route-match');
+        clone.removeAttribute('data-route-step');
+        clone.removeAttribute('data-route-journey-state');
+        clone.removeAttribute('data-route-journey-current');
+        clone.setAttribute('class', 'route-journey-flow');
+        clone.setAttribute('pathLength', '1');
+        return clone;
+      }
+      function renderJourneyPulse(edge) {
+        removeJourneyPulse();
+        if (!edge || !journeyMotionAllowed()) return false;
+        var overlay = document.createElementNS(namespace, 'g');
+        overlay.setAttribute('class', 'route-journey-overlay');
+        overlay.setAttribute('data-route-journey-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        var wrapper = document.createElementNS(namespace, 'g');
+        if (edge.hasAttribute('transform')) wrapper.setAttribute('transform', edge.getAttribute('transform'));
+        edgeShapes(edge).forEach(function (shape) { wrapper.appendChild(journeyGeometry(shape)); });
+        if (!wrapper.childNodes.length) return false;
+        overlay.appendChild(wrapper);
+        var firstNode = svg.querySelector('[data-node-id]');
+        if (firstNode) svg.insertBefore(overlay, firstNode);
+        else svg.appendChild(overlay);
+        if (Archify.motionGovernor && Archify.motionGovernor.capable) {
+          var token = 0;
+          token = Archify.motionGovernor.claim('route', function () {
+            if (journeyOwnerToken === token) journeyOwnerToken = 0;
+            removeJourneyPulse({ release: false });
+          });
+          journeyOwnerToken = token;
+        }
+        overlay.addEventListener('animationend', function () {
+          if (overlay.isConnected) removeJourneyPulse();
+        }, { once: true });
+        window.setTimeout(function () {
+          if (overlay.isConnected) removeJourneyPulse();
+        }, 860);
+        return true;
+      }
+      function applyJourneyState(index, options) {
+        options = options || {};
+        if (mode !== 'result' || !activeNodeIds.length) return false;
+        var byId = nodesById();
+        journeyIndex = Math.max(0, Math.min(activeNodeIds.length - 1, index));
+        removeJourneyPulse();
+        svg.setAttribute('data-route-journey', (journeyIndex + 1) + '/' + activeNodeIds.length);
+        panel.setAttribute('data-route-journey', String(journeyIndex));
+        activeNodeIds.forEach(function (id, step) {
+          var node = byId[id];
+          if (!node) return;
+          var state = step < journeyIndex ? 'past' : (step === journeyIndex ? 'current' : 'future');
+          node.setAttribute('data-route-journey-state', state);
+          if (step === journeyIndex) node.setAttribute('data-route-journey-current', '');
+          else node.removeAttribute('data-route-journey-current');
+        });
+        activeEdges.forEach(function (edge, step) {
+          var destination = step + 1;
+          var state = destination < journeyIndex ? 'past' : (destination === journeyIndex ? 'current' : 'future');
+          edge.setAttribute('data-route-journey-state', state);
+          if (destination === journeyIndex) edge.setAttribute('data-route-journey-current', '');
+          else edge.removeAttribute('data-route-journey-current');
+        });
+        var buttons = journeyButtons();
+        buttons.forEach(function (button, step) {
+          var state = step < journeyIndex ? 'past' : (step === journeyIndex ? 'current' : 'future');
+          button.setAttribute('data-route-journey-state', state);
+          button.setAttribute('tabindex', step === journeyIndex ? '0' : '-1');
+          if (step === journeyIndex) button.setAttribute('aria-current', 'step');
+          else button.removeAttribute('aria-current');
+        });
+        if (options.center !== false) centerJourneyButton(buttons[journeyIndex]);
+        var phase = viewerText(journeyPlaying
+          ? 'viewer.route.phase.playing'
+          : journeyComplete
+            ? 'viewer.route.phase.complete'
+            : 'viewer.route.phase.inspecting');
+        status.textContent = viewerText('viewer.route.step', {
+          index: journeyIndex + 1,
+          total: activeNodeIds.length,
+          phase: phase,
+          label: nodeLabel(byId[activeNodeIds[journeyIndex]], activeNodeIds[journeyIndex])
+        });
+        if (options.pulse === true && journeyIndex > 0) renderJourneyPulse(activeEdges[journeyIndex - 1]);
+        if (options.reveal !== false && Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal(activeNodeIds.slice(Math.max(0, journeyIndex - 1), Math.min(activeNodeIds.length, journeyIndex + 2)), {
+            includeNeighbors: false,
+            reason: 'route-journey',
+            maxScale: 1.65,
+            padding: 64,
+            duration: 360,
+            instant: !journeyMotionAllowed()
+          });
+        }
+        renderJourneyControls();
+        requestDocking();
+        return true;
+      }
+      function pauseJourney(options) {
+        options = options || {};
+        if (!journeyPlaying && options.complete !== true) {
+          renderJourneyControls();
+          return false;
+        }
+        stopJourneyTimer({ preserveElapsed: options.complete !== true && options.preserveElapsed !== false });
+        journeyPlaying = false;
+        journeyComplete = options.complete === true;
+        if (journeyComplete) journeyElapsedMs = 0;
+        removeJourneyPulse();
+        if (journeyIndex >= 0) applyJourneyState(journeyIndex, { center: false, pulse: false, reveal: false });
+        else renderJourneyControls();
+        return true;
+      }
+      function selectJourneyIndex(index) {
+        if (mode !== 'result') return false;
+        stopJourneyTimer();
+        journeyPlaying = false;
+        journeyComplete = false;
+        return applyJourneyState(index, { pulse: true, reveal: true });
+      }
+      function showJourneyOverview(options) {
+        options = options || {};
+        if (mode !== 'result') return false;
+        stopJourneyTimer();
+        journeyPlaying = false;
+        journeyComplete = false;
+        journeyIndex = -1;
+        clearJourneyPresentation({ keepControls: true });
+        status.textContent = routeOverviewStatus();
+        renderJourneyControls();
+        if (options.reveal !== false && Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal(activeNodeIds, { includeNeighbors: false, reason: 'route', instant: !journeyMotionAllowed() });
+        }
+        requestDocking();
+        return true;
+      }
+      function scheduleJourney() {
+        if (!journeyPlaying || !journeyMotionAllowed()) {
+          pauseJourney({ preserveElapsed: true });
+          return false;
+        }
+        var generation = ++journeyGeneration;
+        var remaining = Math.max(0, JOURNEY_DWELL_MS - journeyElapsedMs);
+        journeyStartedAt = Date.now();
+        journeyTimer = window.setTimeout(function () {
+          if (generation !== journeyGeneration || !journeyPlaying) return;
+          journeyTimer = null;
+          journeyStartedAt = 0;
+          journeyElapsedMs = 0;
+          if (journeyIndex >= activeNodeIds.length - 1) {
+            pauseJourney({ complete: true, preserveElapsed: false });
+            return;
+          }
+          applyJourneyState(journeyIndex + 1, { pulse: true, reveal: true });
+          // Camera and motion-owner handoff are allowed to synchronously
+          // settle the previous step. The new step always starts with a fresh
+          // dwell; never carry cleanup time into the next scheduler lease.
+          journeyElapsedMs = 0;
+          journeyStartedAt = 0;
+          scheduleJourney();
+        }, remaining);
+        return true;
+      }
+      function playJourney() {
+        if (mode !== 'result' || activeNodeIds.length < 2 || !journeyMotionAllowed()) {
+          renderJourneyControls();
+          return false;
+        }
+        if (journeyPlaying) return true;
+        if (journeyComplete || journeyIndex >= activeNodeIds.length - 1) {
+          journeyIndex = -1;
+          journeyElapsedMs = 0;
+          journeyComplete = false;
+        }
+        journeyPlaying = true;
+        if (journeyIndex < 0) applyJourneyState(0, { pulse: false, reveal: true });
+        else applyJourneyState(journeyIndex, { center: false, pulse: false, reveal: false });
+        scheduleJourney();
+        return true;
+      }
+      function toggleJourney() {
+        return journeyPlaying ? pauseJourney({ preserveElapsed: true }) : playJourney();
+      }
+      function previousJourney() {
+        return selectJourneyIndex(Math.max(0, journeyIndex < 0 ? 0 : journeyIndex - 1));
+      }
+      function nextJourney() {
+        return selectJourneyIndex(Math.min(activeNodeIds.length - 1, journeyIndex + 1));
+      }
+      function overlapArea(a, b) {
+        var width = Math.max(0, Math.min(a.right, b.right) - Math.max(a.left, b.left));
+        var height = Math.max(0, Math.min(a.bottom, b.bottom) - Math.max(a.top, b.top));
+        return width * height;
+      }
+      function updateDocking() {
+        if (panel.hidden) {
+          panel.removeAttribute('data-route-dock');
+          return;
+        }
+        var containerRect = container.getBoundingClientRect();
+        var width = panel.offsetWidth;
+        var height = panel.offsetHeight;
+        if (!width || !height) return;
+        var currentRect = panel.getBoundingClientRect();
+        var left = currentRect.left;
+        var topCandidate = {
+          left: left,
+          right: left + width,
+          top: containerRect.top + 8,
+          bottom: containerRect.top + 8 + height
+        };
+        var nav = container.querySelector('.diagram-nav');
+        var navRect = nav ? nav.getBoundingClientRect() : null;
+        var bottom = navRect ? navRect.top - 9 : containerRect.bottom - 8;
+        var bottomCandidate = {
+          left: left,
+          right: left + width,
+          top: bottom - height,
+          bottom: bottom
+        };
+        var byId = nodesById();
+        var relevant = activeNodeIds.length ? activeNodeIds : (startId ? [startId] : []);
+        var blockers = relevant.map(function (id) { return byId[id]; }).filter(Boolean).map(function (node) {
+          return node.getBoundingClientRect();
+        });
+        function score(candidate) {
+          var value = blockers.reduce(function (sum, rect) { return sum + overlapArea(candidate, rect); }, 0);
+          if (navRect) value += overlapArea(candidate, navRect) * 4;
+          if (candidate.top < containerRect.top || candidate.bottom > containerRect.bottom) value += 1000000;
+          return value;
+        }
+        if (score(topCandidate) <= score(bottomCandidate)) panel.setAttribute('data-route-dock', 'top');
+        else panel.setAttribute('data-route-dock', 'bottom');
+      }
+      function requestDocking() {
+        requestAnimationFrame(updateDocking);
+        window.setTimeout(updateDocking, 120);
+        window.setTimeout(updateDocking, 560);
+      }
+      function chooseStart(id) {
+        var byId = nodesById();
+        if (!byId[id]) return false;
+        cleanSvgState();
+        startId = id;
+        endId = null;
+        mode = 'target';
+        var reached = reachableFrom(id);
+        byId[id].setAttribute('data-route-start', '');
+        byId[id].setAttribute('data-route-match', '');
+        Object.keys(reached).forEach(function (candidateId) {
+          if (candidateId !== id && byId[candidateId]) byId[candidateId].setAttribute('data-route-candidate', '');
+        });
+        svg.setAttribute('data-route-picking', 'target');
+        panel.setAttribute('data-state', 'target');
+        title.textContent = viewerText('viewer.route.destination', { label: nodeLabel(byId[id], id) });
+        renderPath([id]);
+        var count = Math.max(0, Object.keys(reached).length - 1);
+        status.textContent = count
+          ? viewerCount('viewer.route.destination.count', count)
+          : viewerText('viewer.route.noOutgoing');
+        findBtn.hidden = false;
+        findBtn.textContent = viewerText('viewer.route.destination.find');
+        findBtn.setAttribute('aria-label', viewerText('viewer.route.destination.find.aria'));
+        requestDocking();
+        return true;
+      }
+      function showResult(result, options) {
+        options = options || {};
+        var byId = nodesById();
+        cleanSvgState();
+        mode = 'result';
+        startId = result.nodes[0];
+        endId = result.nodes[result.nodes.length - 1];
+        activeNodeIds = result.nodes.slice();
+        activeEdges = result.edges.slice();
+        result.nodes.forEach(function (id, step) {
+          var node = byId[id];
+          if (!node) return;
+          node.setAttribute('data-route-match', '');
+          node.setAttribute('data-route-step', String(step));
+          node.style.setProperty('--route-step', String(step));
+          if (step === 0) node.setAttribute('data-route-start', '');
+          if (step === result.nodes.length - 1) node.setAttribute('data-route-end', '');
+        });
+        result.edges.forEach(function (edge, step) {
+          edge.setAttribute('data-route-match', '');
+          edge.setAttribute('data-route-step', String(step));
+          edge.style.setProperty('--route-step', String(step));
+        });
+        svg.setAttribute('data-route-active', startId + '~' + endId);
+        renderOverlay(result.edges);
+        renderPath(result.nodes, { interactive: true });
+        panel.setAttribute('data-state', 'result');
+        panel.hidden = false;
+        title.textContent = viewerText('viewer.route.result.title', {
+          source: nodeLabel(byId[startId], startId),
+          target: nodeLabel(byId[endId], endId)
+        });
+        findBtn.hidden = true;
+        copyBtn.hidden = false;
+        setTrigger(true);
+        if (Archify.exportMenu && typeof Archify.exportMenu.syncRouteShare === 'function') Archify.exportMenu.syncRouteShare();
+        if (options.updateUrl !== false) {
+          replaceRouteHash(encodeURIComponent(startId) + '~' + encodeURIComponent(endId));
+        }
+        showJourneyOverview({ reveal: false });
+        if (Archify.view && typeof Archify.view.reveal === 'function') {
+          Archify.view.reveal(result.nodes, { includeNeighbors: false, reason: 'route' });
+        }
+        return true;
+      }
+      function choose(id, options) {
+        options = options || {};
+        var byId = nodesById();
+        if (!byId[id]) return false;
+        if (mode === 'source') return chooseStart(id);
+        if (mode !== 'target') return false;
+        if (id === startId) {
+          panel.setAttribute('data-state', 'error');
+          title.textContent = viewerText('viewer.route.differentDestination');
+          status.textContent = viewerText('viewer.route.distinct');
+          return false;
+        }
+        var result = shortestDirectedPath(startId, id);
+        if (!result) {
+          panel.setAttribute('data-state', 'error');
+          title.textContent = viewerText('viewer.route.unreachable', { label: nodeLabel(byId[id], id) });
+          status.textContent = viewerText('viewer.route.unreachable.detail', {
+            target: nodeLabel(byId[id], id),
+            source: nodeLabel(byId[startId], startId)
+          });
+          return false;
+        }
+        return showResult(result, options);
+      }
+      function begin(options) {
+        options = options || {};
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (Archify.semanticLens && Archify.semanticLens.active()) {
+          Archify.semanticLens.clear({ updateUrl: false, preserveView: true, closePanel: true });
+        }
+        var focused = options.source || (Archify.focus && typeof Archify.focus.active === 'function' ? Archify.focus.active() : null);
+        if (Array.isArray(focused)) focused = null;
+        clear({ updateUrl: false, preserveView: true, restoreFocus: false });
+        if (Archify.intentTrace && typeof Archify.intentTrace.clear === 'function') Archify.intentTrace.clear({ announce: false });
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        if (Archify.focus && typeof Archify.focus.clear === 'function') {
+          Archify.focus.clear({ updateUrl: false, preserveView: true });
+        }
+        if (Archify.finder && Archify.finder.isOpen()) Archify.finder.close({ restoreFocus: false });
+        if (Archify.radar && Archify.radar.isOpen()) Archify.radar.close({ restoreFocus: false });
+        mode = 'source';
+        panel.hidden = false;
+        panel.setAttribute('data-state', 'source');
+        svg.setAttribute('data-route-picking', 'source');
+        title.textContent = viewerText('viewer.route.start');
+        renderPlaceholder(viewerText('viewer.route.pickOne'));
+        status.textContent = viewerText('viewer.route.start.instructions');
+        findBtn.hidden = false;
+        findBtn.textContent = viewerText('viewer.route.start.find');
+        findBtn.setAttribute('aria-label', viewerText('viewer.route.start.find.aria'));
+        copyBtn.hidden = true;
+        setTrigger(true);
+        if (focused && nodesById()[focused]) chooseStart(focused);
+        if (options.focusNode === true && !focused) {
+          var first = nodes()[0];
+          if (first) {
+            try { first.focus({ preventScroll: true }); } catch (_) { try { first.focus(); } catch (_) {} }
+          }
+        }
+        return true;
+      }
+      function toggle(options) {
+        if (mode !== 'idle') {
+          clear({ restoreFocus: true });
+          return false;
+        }
+        return begin(options);
+      }
+      function finderContext() {
+        var byId = nodesById();
+        if (mode === 'source') {
+          var outgoing = outgoingByNode();
+          var sourceIds = nodes().map(function (node) { return node.getAttribute('data-node-id'); }).filter(function (id) {
+            return outgoing[id] && outgoing[id].length;
+          });
+          var sourceBadges = {};
+          sourceIds.forEach(function (id) { sourceBadges[id] = viewerText('viewer.route.finder.source.badge'); });
+          return {
+            kind: 'route-source',
+            title: viewerText('viewer.route.finder.source.title'),
+            placeholder: viewerText('viewer.route.finder.source.placeholder'),
+            empty: viewerText('viewer.route.finder.source.empty'),
+            resultsLabel: viewerText('viewer.route.finder.source.results'),
+            availableNoun: viewerText('viewer.route.finder.source.noun'),
+            allowedIds: sourceIds,
+            badges: sourceBadges
+          };
+        }
+        if (mode === 'target' && startId && byId[startId]) {
+          var distances = hopDistancesFrom(startId);
+          var targetIds = Object.keys(distances).filter(function (id) { return id !== startId && byId[id]; });
+          var targetBadges = {};
+          targetIds.forEach(function (id) {
+            targetBadges[id] = viewerCount('viewer.route.hop', distances[id]);
+          });
+          return {
+            kind: 'route-target',
+            title: viewerText('viewer.route.finder.target.title', { label: nodeLabel(byId[startId], startId) }),
+            placeholder: viewerText('viewer.route.finder.target.placeholder'),
+            empty: viewerText('viewer.route.finder.target.empty'),
+            resultsLabel: viewerText('viewer.route.finder.target.results'),
+            availableNoun: viewerText('viewer.route.finder.target.noun'),
+            allowedIds: targetIds,
+            badges: targetBadges
+          };
+        }
+        return null;
+      }
+      function finderOpening() {
+        panel.setAttribute('data-finder-open', 'true');
+      }
+      function finderClosed(options) {
+        options = options || {};
+        panel.removeAttribute('data-finder-open');
+        requestDocking();
+        if (options.restoreFocus === true && !findBtn.hidden) findBtn.focus();
+      }
+      function openFinder() {
+        var context = finderContext();
+        if (!context || !Archify.finder) return false;
+        return Archify.finder.open({ context: context });
+      }
+      function fallbackCopy(value) {
+        var field = document.createElement('textarea');
+        field.value = value;
+        field.setAttribute('readonly', '');
+        field.style.position = 'fixed';
+        field.style.opacity = '0';
+        document.body.appendChild(field);
+        field.select();
+        var copied = false;
+        try { copied = document.execCommand('copy'); } catch (_) {}
+        field.remove();
+        return copied;
+      }
+      function copyLink() {
+        if (mode !== 'result') return Promise.resolve(false);
+        var value = location.href.replace(/#.*$/, '') + '#route=' + encodeURIComponent(startId) + '~' + encodeURIComponent(endId);
+        var copy = navigator.clipboard && typeof navigator.clipboard.writeText === 'function'
+          ? navigator.clipboard.writeText(value).then(function () { return true; }).catch(function () { return fallbackCopy(value); })
+          : Promise.resolve(fallbackCopy(value));
+        return copy.then(function (copied) {
+          copyBtn.textContent = viewerText(copied ? 'viewer.common.copied' : 'viewer.common.copyFailed');
+          copyBtn.setAttribute('aria-label', viewerText(copied ? 'viewer.route.copy.success' : 'viewer.route.copy.failed'));
+          window.setTimeout(function () {
+            copyBtn.textContent = viewerText('viewer.route.copy');
+            copyBtn.setAttribute('aria-label', viewerText('viewer.route.copy.aria'));
+          }, 1600);
+          return copied;
+        });
+      }
+      function interceptSelection(event) {
+        if (mode !== 'source' && mode !== 'target') return;
+        if (container.getAttribute('data-just-panned') === 'true') return;
+        var node = event.target.closest('[data-node-id]');
+        if (!node) return;
+        if (event.type === 'keydown' && event.key !== 'Enter' && event.key !== ' ') return;
+        event.preventDefault();
+        event.stopImmediatePropagation();
+        choose(node.getAttribute('data-node-id'));
+      }
+      function syncFromHash() {
+        try {
+          var params = new URLSearchParams(location.hash.replace(/^#/, ''));
+          var route = params.get('route');
+          if (!route) {
+            if (mode !== 'idle') clear({ updateUrl: false, restoreFocus: false });
+            return;
+          }
+          var parts = route.split('~');
+          if (parts.length !== 2) return;
+          var byId = nodesById();
+          if (!byId[parts[0]] || !byId[parts[1]]) return;
+          begin({ source: parts[0], focusNode: false });
+          choose(parts[1], { updateUrl: false });
+        } catch (_) {}
+      }
+      function escapeRoute(options) {
+        options = options || {};
+        if (journeyPlaying) {
+          pauseJourney({ preserveElapsed: true });
+          if (options.restoreFocus === true) journeyPlayBtn.focus();
+          return 'paused';
+        }
+        if (journeyIndex >= 0) {
+          showJourneyOverview({ reveal: true });
+          if (options.restoreFocus === true) journeyOverviewBtn.focus();
+          return 'overview';
+        }
+        clear({ restoreFocus: options.restoreFocus === true });
+        return 'cleared';
+      }
+      function syncJourneyMotion() {
+        if (journeyPlaying && !journeyMotionAllowed()) pauseJourney({ preserveElapsed: true });
+        renderJourneyControls();
+        return journeyMotionAllowed();
+      }
+
+      trigger.addEventListener('click', function () { toggle({ focusNode: false }); });
+      findBtn.addEventListener('click', openFinder);
+      clearBtn.addEventListener('click', function () { clear({ restoreFocus: true }); });
+      copyBtn.addEventListener('click', copyLink);
+      journeyPrevBtn.addEventListener('click', previousJourney);
+      journeyPlayBtn.addEventListener('click', toggleJourney);
+      journeyNextBtn.addEventListener('click', nextJourney);
+      journeyOverviewBtn.addEventListener('click', function () { showJourneyOverview({ reveal: true }); });
+      path.addEventListener('click', function (event) {
+        var button = event.target.closest('[data-route-journey-index]');
+        if (!button) return;
+        selectJourneyIndex(Number(button.getAttribute('data-route-journey-index')));
+      });
+      path.addEventListener('focusin', function (event) {
+        if (journeyPlaying && event.target.closest('[data-route-journey-index]')) pauseJourney({ preserveElapsed: true });
+      });
+      path.addEventListener('keydown', function (event) {
+        var button = event.target.closest('[data-route-journey-index]');
+        if (!button) return;
+        var index = Number(button.getAttribute('data-route-journey-index'));
+        var next = null;
+        if (event.key === 'ArrowRight') next = Math.min(activeNodeIds.length - 1, index + 1);
+        else if (event.key === 'ArrowLeft') next = Math.max(0, index - 1);
+        else if (event.key === 'Home') next = 0;
+        else if (event.key === 'End') next = activeNodeIds.length - 1;
+        if (next !== null) {
+          event.preventDefault();
+          focusJourneyButton(next);
+          return;
+        }
+        if (event.key === 'Enter' || event.key === ' ') {
+          event.preventDefault();
+          selectJourneyIndex(index);
+        }
+      });
+      svg.addEventListener('click', interceptSelection, true);
+      svg.addEventListener('keydown', interceptSelection, true);
+      container.addEventListener('scroll', updateDocking, { passive: true });
+      window.addEventListener('resize', requestDocking);
+      window.addEventListener('beforeprint', function () {
+        if (journeyPlaying) pauseJourney({ preserveElapsed: true, reason: 'print' });
+        else removeJourneyPulse();
+      });
+      window.addEventListener('hashchange', function () { requestAnimationFrame(syncFromHash); });
+      syncFromHash();
+
+      return {
+        begin: begin,
+        choose: choose,
+        clear: clear,
+        toggle: toggle,
+        escape: escapeRoute,
+        copyLink: copyLink,
+        playJourney: playJourney,
+        pauseJourney: pauseJourney,
+        showOverview: showJourneyOverview,
+        selectJourneyIndex: selectJourneyIndex,
+        syncMotion: syncJourneyMotion,
+        isJourneyPlaying: function () { return journeyPlaying; },
+        finderContext: finderContext,
+        finderOpening: finderOpening,
+        finderClosed: finderClosed,
+        openFinder: openFinder,
+        exportSnapshot: exportSnapshot,
+        active: function () { return mode === 'idle' ? null : mode; },
+        result: function () {
+          return mode === 'result'
+            ? { source: startId, target: endId, nodes: activeNodeIds.slice(), hops: activeEdges.length, journey: journeyIndex, playing: journeyPlaying }
+            : null;
+        }
+      };
+    })();
+
+    /* ============================================================
+       Semantic Lens — a counted, viewer-only legend over data-node-kind.
+       One selected kind reveals every authored relationship touching it.
+       Two selected kinds compare only direct cross-kind relationships while
+       preserving the full diagram as a dimmed spatial reference.
+       ============================================================ */
+    Archify.semanticLens = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector(':scope > svg');
+      var trigger = document.getElementById('btn-semantic-lens');
+      var panel = document.getElementById('semantic-lens');
+      var closeBtn = document.getElementById('semantic-lens-close');
+      var kindsRoot = document.getElementById('semantic-lens-kinds');
+      var status = document.getElementById('semantic-lens-status');
+      var copyBtn = document.getElementById('semantic-lens-copy');
+      var clearBtn = document.getElementById('semantic-lens-clear');
+      var legendBridge = svg.querySelector('[data-legend-bridge]');
+      var legendEntries = [];
+      var hoveredLegendEntry = null;
+      var focusedLegendEntry = null;
+      var activeLegendPreview = null;
+      var lensOpener = trigger;
+      var selectedKinds = [];
+      var namespace = 'http://www.w3.org/2000/svg';
+      var finePointerQuery = window.matchMedia ? window.matchMedia('(hover: hover) and (pointer: fine)') : null;
+      var MAX_LENS_FLOW_EDGES = 24;
+
+      function nodesById() {
+        var byId = {};
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-node-id][data-node-kind]'), function (node) {
+          var id = node.getAttribute('data-node-id');
+          if (id && !byId[id]) byId[id] = node;
+        });
+        return byId;
+      }
+      function collectKinds() {
+        var kinds = {};
+        var byId = nodesById();
+        Object.keys(byId).forEach(function (id) {
+          var node = byId[id];
+          var value = node.getAttribute('data-node-kind') || 'neutral';
+          var kind = kinds[value] || (kinds[value] = { id: value, label: viewerKindLabel(value), nodes: [] });
+          kind.nodes.push(node);
+        });
+        return Object.keys(kinds).map(function (key) { return kinds[key]; }).sort(function (a, b) {
+          return b.nodes.length - a.nodes.length || a.label.localeCompare(b.label);
+        });
+      }
+      function edgeGroups() {
+        var groups = {};
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'), function (edge) {
+          var from = edge.getAttribute('data-edge-from');
+          var to = edge.getAttribute('data-edge-to');
+          var key = edge.getAttribute('data-edge-key') || [from, to, edge.getAttribute('data-edge-label') || ''].join('\u0000');
+          if (!groups[key]) groups[key] = { key: key, from: from, to: to, members: [] };
+          groups[key].members.push(edge);
+        });
+        return Object.keys(groups).map(function (key) { return groups[key]; });
+      }
+      function edgeShapes(edge) {
+        if (!edge) return [];
+        if (/^(path|line|polyline)$/i.test(edge.tagName || '')) return [edge];
+        return Array.prototype.slice.call(edge.querySelectorAll('path, line, polyline'));
+      }
+      function legendSourceBounds(entry) {
+        var bounds = null;
+        Array.prototype.forEach.call(entry.children, function (child) {
+          if (child.hasAttribute('data-legend-bridge-runtime')) return;
+          var box;
+          try { box = child.getBBox(); } catch (_) { return; }
+          if (!box || !Number.isFinite(box.x) || !Number.isFinite(box.y)) return;
+          var next = { left: box.x, top: box.y, right: box.x + box.width, bottom: box.y + box.height };
+          if (!bounds) bounds = next;
+          else {
+            bounds.left = Math.min(bounds.left, next.left);
+            bounds.top = Math.min(bounds.top, next.top);
+            bounds.right = Math.max(bounds.right, next.right);
+            bounds.bottom = Math.max(bounds.bottom, next.bottom);
+          }
+        });
+        return bounds;
+      }
+      function layoutLegendEntry(entry) {
+        var bounds = legendSourceBounds(entry);
+        var hit = entry.querySelector('[data-legend-hit]');
+        var badge = entry.querySelector('[data-legend-count-badge]');
+        if (!bounds || !hit || !badge) return false;
+        var count = entry.getAttribute('data-legend-count') || '0';
+        var centerY = (bounds.top + bounds.bottom) / 2;
+        var badgeWidth = Math.max(14, count.length * 5 + 8);
+        var badgeX = bounds.right + 3;
+        var hitX = bounds.left - 5;
+        var hitRight = badgeX + badgeWidth + 4;
+        hit.setAttribute('x', hitX.toFixed(2));
+        hit.setAttribute('y', (centerY - 12).toFixed(2));
+        hit.setAttribute('width', Math.max(24, hitRight - hitX).toFixed(2));
+        hit.setAttribute('height', '24');
+        hit.setAttribute('rx', '4');
+        var badgeRect = badge.querySelector('rect');
+        var badgeText = badge.querySelector('text');
+        badgeRect.setAttribute('x', badgeX.toFixed(2));
+        badgeRect.setAttribute('y', (centerY - 7).toFixed(2));
+        badgeRect.setAttribute('width', badgeWidth.toFixed(2));
+        badgeRect.setAttribute('height', '14');
+        badgeRect.setAttribute('rx', '7');
+        badgeText.setAttribute('x', (badgeX + badgeWidth / 2).toFixed(2));
+        badgeText.setAttribute('y', (centerY + 2.5).toFixed(2));
+        return true;
+      }
+      function layoutLegendBridge() {
+        legendEntries.forEach(layoutLegendEntry);
+        if (!legendBridge) return;
+        Array.prototype.forEach.call(legendBridge.querySelectorAll('[data-legend-zero]'), layoutLegendEntry);
+      }
+      function decorateLegendBridge() {
+        legendEntries = [];
+        if (!legendBridge || html.getAttribute('data-embed') === 'true') return false;
+        var facts = {};
+        collectKinds().forEach(function (kind) { facts[kind.id] = kind; });
+        Array.prototype.forEach.call(legendBridge.querySelectorAll('[data-legend-kind]'), function (entry) {
+          var kind = entry.getAttribute('data-legend-kind');
+          var fact = facts[kind];
+          var count = fact ? fact.nodes.length : 0;
+          entry.setAttribute('data-legend-count', String(count));
+          var hit = document.createElementNS(namespace, 'rect');
+          hit.setAttribute('data-legend-bridge-runtime', '');
+          hit.setAttribute('data-legend-hit', '');
+          hit.setAttribute('aria-hidden', 'true');
+          entry.insertBefore(hit, entry.firstChild);
+          var badge = document.createElementNS(namespace, 'g');
+          badge.setAttribute('data-legend-bridge-runtime', '');
+          badge.setAttribute('data-legend-count-badge', '');
+          badge.setAttribute('aria-hidden', 'true');
+          badge.appendChild(document.createElementNS(namespace, 'rect'));
+          var countText = document.createElementNS(namespace, 'text');
+          countText.textContent = String(count);
+          badge.appendChild(countText);
+          entry.appendChild(badge);
+          if (!fact || !count) {
+            entry.setAttribute('data-legend-zero', '');
+            return;
+          }
+          entry.setAttribute('role', 'button');
+          entry.setAttribute('tabindex', legendEntries.length ? '-1' : '0');
+          var visibleLabel = entry.getAttribute('data-legend-label') || fact.label;
+          entry.setAttribute('aria-label', viewerCount('viewer.lens.legend.inspect', count, { label: visibleLabel }));
+          entry.setAttribute('aria-pressed', 'false');
+          entry.setAttribute('aria-haspopup', 'dialog');
+          entry.setAttribute('aria-controls', 'semantic-lens');
+          entry.setAttribute('aria-expanded', 'false');
+          legendEntries.push(entry);
+        });
+        if (!legendEntries.length) return false;
+        legendBridge.setAttribute('role', legendEntries.length >= 3 ? 'toolbar' : 'group');
+        legendBridge.setAttribute('aria-label', viewerText('viewer.lens.legend'));
+        syncLegendBridge();
+        layoutLegendBridge();
+        try {
+          if (document.fonts && document.fonts.ready) document.fonts.ready.then(layoutLegendBridge);
+        } catch (_) {}
+        return true;
+      }
+      function syncLegendBridge() {
+        legendEntries.forEach(function (entry) {
+          var selected = selectedKinds.indexOf(entry.getAttribute('data-legend-kind')) >= 0;
+          entry.setAttribute('aria-pressed', selected ? 'true' : 'false');
+          entry.setAttribute('aria-expanded', !panel.hidden && lensOpener === entry ? 'true' : 'false');
+          if (selected) entry.setAttribute('data-legend-selected', '');
+          else entry.removeAttribute('data-legend-selected');
+        });
+      }
+      function clearLegendPreview() {
+        activeLegendPreview = null;
+        svg.removeAttribute('data-legend-preview-active');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-legend-preview-match], [data-legend-preview-selected], [data-legend-preview-peer]'), function (element) {
+          element.removeAttribute('data-legend-preview-match');
+          element.removeAttribute('data-legend-preview-selected');
+          element.removeAttribute('data-legend-preview-peer');
+        });
+      }
+      function strongerLegendOwnerActive() {
+        return selectedKinds.length > 0 || !panel.hidden || html.getAttribute('data-present') === 'true' ||
+          svg.hasAttribute('data-focus-active') || svg.hasAttribute('data-intent-trace-active') ||
+          svg.hasAttribute('data-route-picking') || svg.hasAttribute('data-route-active') ||
+          svg.hasAttribute('data-story-active') || svg.hasAttribute('data-relationship-preview-active');
+      }
+      function previewLegendKind(entry) {
+        clearLegendPreview();
+        if (!entry || strongerLegendOwnerActive()) return false;
+        var kind = entry.getAttribute('data-legend-kind');
+        var byId = nodesById();
+        var matches = Object.keys(byId).filter(function (id) {
+          return (byId[id].getAttribute('data-node-kind') || 'neutral') === kind;
+        });
+        if (!matches.length) return false;
+        var chosen = {};
+        matches.forEach(function (id) {
+          chosen[id] = true;
+          byId[id].setAttribute('data-legend-preview-match', '');
+          byId[id].setAttribute('data-legend-preview-selected', '');
+        });
+        edgeGroups().forEach(function (edge) {
+          if (!chosen[edge.from] && !chosen[edge.to]) return;
+          edge.members.forEach(function (member) { member.setAttribute('data-legend-preview-match', ''); });
+          [edge.from, edge.to].forEach(function (id) {
+            if (!byId[id] || chosen[id]) return;
+            byId[id].setAttribute('data-legend-preview-match', '');
+            byId[id].setAttribute('data-legend-preview-peer', '');
+          });
+        });
+        svg.setAttribute('data-legend-preview-active', kind);
+        activeLegendPreview = entry;
+        return true;
+      }
+      function syncLegendPreview() {
+        var next = focusedLegendEntry || hoveredLegendEntry;
+        if (next === activeLegendPreview) return;
+        clearLegendPreview();
+        if (next) previewLegendKind(next);
+      }
+      function activateLegendEntry(entry) {
+        if (!entry || entry.getAttribute('role') !== 'button') return false;
+        clearLegendPreview();
+        select(entry.getAttribute('data-legend-kind'));
+        return open({ opener: entry });
+      }
+      function removeFlowOverlay() {
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-semantic-lens-overlay]'), function (element) {
+          element.remove();
+        });
+        svg.removeAttribute('data-lens-flow-count');
+        svg.removeAttribute('data-lens-flow-density');
+      }
+      function flowGeometry(shape, direction, step) {
+        var clone = shape.cloneNode(false);
+        clone.removeAttribute('id');
+        clone.removeAttribute('class');
+        clone.removeAttribute('style');
+        clone.removeAttribute('marker-start');
+        clone.removeAttribute('marker-mid');
+        clone.removeAttribute('marker-end');
+        clone.removeAttribute('role');
+        clone.removeAttribute('aria-label');
+        clone.removeAttribute('aria-hidden');
+        clone.removeAttribute('data-animate');
+        clone.removeAttribute('data-edge-from');
+        clone.removeAttribute('data-edge-to');
+        clone.removeAttribute('data-edge-key');
+        clone.removeAttribute('data-edge-id');
+        clone.removeAttribute('data-edge-label');
+        clone.removeAttribute('data-lens-match');
+        clone.setAttribute('class', 'semantic-lens-flow');
+        clone.setAttribute('data-direction', direction);
+        clone.setAttribute('pathLength', '1');
+        clone.style.setProperty('--lens-flow-delay', (step * 0.08).toFixed(2) + 's');
+        return clone;
+      }
+      function renderFlowOverlay(entries) {
+        removeFlowOverlay();
+        svg.setAttribute('data-lens-flow-count', String(entries.length));
+        if (!entries.length || html.getAttribute('data-embed') === 'true') return false;
+        if (entries.length > MAX_LENS_FLOW_EDGES) {
+          svg.setAttribute('data-lens-flow-density', 'quiet');
+          return false;
+        }
+        var overlay = document.createElementNS(namespace, 'g');
+        overlay.setAttribute('class', 'semantic-lens-overlay');
+        overlay.setAttribute('data-semantic-lens-overlay', '');
+        overlay.setAttribute('aria-hidden', 'true');
+        entries.forEach(function (entry, step) {
+          var wrapper = document.createElementNS(namespace, 'g');
+          if (entry.edge.members[0].hasAttribute('transform')) {
+            wrapper.setAttribute('transform', entry.edge.members[0].getAttribute('transform'));
+          }
+          edgeShapes(entry.edge.members[0]).forEach(function (shape) {
+            wrapper.appendChild(flowGeometry(shape, entry.direction, step));
+          });
+          if (wrapper.childNodes.length) overlay.appendChild(wrapper);
+        });
+        if (!overlay.childNodes.length) return false;
+        var firstNode = svg.querySelector('[data-node-id]');
+        if (firstNode) svg.insertBefore(overlay, firstNode);
+        else svg.appendChild(overlay);
+        return true;
+      }
+      function cleanSvgState() {
+        removeFlowOverlay();
+        svg.removeAttribute('data-lens-active');
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-lens-match], [data-lens-selected], [data-lens-peer]'), function (element) {
+          element.removeAttribute('data-lens-match');
+          element.removeAttribute('data-lens-selected');
+          element.removeAttribute('data-lens-peer');
+        });
+      }
+      function renderKinds() {
+        kindsRoot.textContent = '';
+        collectKinds().forEach(function (kind) {
+          var button = document.createElement('button');
+          button.type = 'button';
+          button.className = 'semantic-lens-kind';
+          button.setAttribute('data-kind', kind.id);
+          button.setAttribute('aria-pressed', selectedKinds.indexOf(kind.id) >= 0 ? 'true' : 'false');
+          button.setAttribute('aria-label', viewerCount('viewer.lens.kind.count', kind.nodes.length, { label: kind.label }));
+          button.disabled = selectedKinds.length >= 2 && selectedKinds.indexOf(kind.id) === -1;
+          var swatch = document.createElement('span');
+          swatch.className = 'semantic-lens-swatch';
+          swatch.setAttribute('aria-hidden', 'true');
+          var label = document.createElement('strong');
+          label.textContent = kind.label;
+          var count = document.createElement('em');
+          count.textContent = String(kind.nodes.length);
+          button.appendChild(swatch);
+          button.appendChild(label);
+          button.appendChild(count);
+          kindsRoot.appendChild(button);
+        });
+      }
+      function updateHash() {
+        try {
+          var hash = selectedKinds.length
+            ? '#lens=' + selectedKinds.map(encodeURIComponent).join('~')
+            : '';
+          history.replaceState(null, '', location.pathname + location.search + hash);
+        } catch (_) {}
+      }
+      function updateTrigger() {
+        var active = selectedKinds.length > 0;
+        trigger.setAttribute('aria-pressed', active ? 'true' : 'false');
+        trigger.setAttribute('aria-label', viewerText(active ? 'viewer.lens.openActive' : 'viewer.lens.open'));
+        copyBtn.hidden = !active;
+        syncLegendBridge();
+      }
+      function overlapArea(a, b) {
+        var width = Math.max(0, Math.min(a.right, b.right) - Math.max(a.left, b.left));
+        var height = Math.max(0, Math.min(a.bottom, b.bottom) - Math.max(a.top, b.top));
+        return width * height;
+      }
+      function dockPanel(byId) {
+        panel.removeAttribute('data-dock-side');
+        if (panel.hidden || window.innerWidth <= 720) return 'right';
+        var panelRect = panel.getBoundingClientRect();
+        var containerRect = container.getBoundingClientRect();
+        if (!panelRect.width || !panelRect.height) return 'right';
+        var selectedRects = Object.keys(byId).filter(function (id) {
+          return selectedKinds.indexOf(byId[id].getAttribute('data-node-kind') || 'neutral') >= 0;
+        }).map(function (id) { return byId[id].getBoundingClientRect(); });
+        var top = panelRect.top;
+        var width = panelRect.width;
+        var leftCandidate = { left: containerRect.left + 16, right: containerRect.left + 16 + width, top: top, bottom: panelRect.bottom };
+        var rightCandidate = { left: containerRect.right - 16 - width, right: containerRect.right - 16, top: top, bottom: panelRect.bottom };
+        var leftScore = selectedRects.reduce(function (score, rect) { return score + overlapArea(leftCandidate, rect); }, 0);
+        var rightScore = selectedRects.reduce(function (score, rect) { return score + overlapArea(rightCandidate, rect); }, 0);
+        var legend = svg.querySelector('[data-legend]');
+        var nav = container.querySelector('.diagram-nav');
+        var protectedRects = [legend, nav].filter(function (element) {
+          return element && !element.hidden && window.getComputedStyle(element).display !== 'none';
+        }).map(function (element) { return element.getBoundingClientRect(); });
+        leftScore += protectedRects.reduce(function (score, rect) {
+          return score + overlapArea(leftCandidate, rect) * 1000;
+        }, 0);
+        rightScore += protectedRects.reduce(function (score, rect) {
+          return score + overlapArea(rightCandidate, rect) * 1000;
+        }, 0);
+        var side = leftScore < rightScore ? 'left' : 'right';
+        panel.setAttribute('data-dock-side', side);
+        return side;
+      }
+      function applySelection(options) {
+        options = options || {};
+        cleanSvgState();
+        var byId = nodesById();
+        var nodeKind = {};
+        Object.keys(byId).forEach(function (id) { nodeKind[id] = byId[id].getAttribute('data-node-kind') || 'neutral'; });
+        if (!selectedKinds.length) {
+          status.textContent = viewerText('viewer.lens.choose');
+          updateTrigger();
+          renderKinds();
+          dockPanel(byId);
+          if (options.updateUrl !== false) updateHash();
+          return false;
+        }
+
+        var chosen = {};
+        selectedKinds.forEach(function (kind) { chosen[kind] = true; });
+        Object.keys(byId).forEach(function (id) {
+          if (!chosen[nodeKind[id]]) return;
+          byId[id].setAttribute('data-lens-match', '');
+          byId[id].setAttribute('data-lens-selected', '');
+        });
+
+        var touching = 0;
+        var forward = 0;
+        var reverse = 0;
+        var crossKind = selectedKinds.length === 2;
+        var matchedFlow = [];
+        edgeGroups().forEach(function (edge) {
+          var fromKind = nodeKind[edge.from];
+          var toKind = nodeKind[edge.to];
+          var match = false;
+          if (crossKind) {
+            if (fromKind === selectedKinds[0] && toKind === selectedKinds[1]) { match = true; forward += 1; }
+            if (fromKind === selectedKinds[1] && toKind === selectedKinds[0]) { match = true; reverse += 1; }
+          } else if (fromKind === selectedKinds[0] || toKind === selectedKinds[0]) {
+            match = true;
+            touching += 1;
+          }
+          if (!match) return;
+          var direction = 'within';
+          if (crossKind) {
+            direction = fromKind === selectedKinds[0] ? 'forward' : 'reverse';
+          } else {
+            direction = fromKind === selectedKinds[0] && toKind !== selectedKinds[0] ? 'out'
+              : (toKind === selectedKinds[0] && fromKind !== selectedKinds[0] ? 'in' : 'within');
+          }
+          matchedFlow.push({ edge: edge, direction: direction });
+          edge.members.forEach(function (member) { member.setAttribute('data-lens-match', ''); });
+          if (!crossKind) {
+            [edge.from, edge.to].forEach(function (id) {
+              if (!byId[id]) return;
+              byId[id].setAttribute('data-lens-match', '');
+              if (!chosen[nodeKind[id]]) byId[id].setAttribute('data-lens-peer', '');
+            });
+          }
+        });
+
+        svg.setAttribute('data-lens-active', selectedKinds.join(' '));
+        renderFlowOverlay(matchedFlow);
+        if (crossKind) {
+          var total = forward + reverse;
+          status.textContent = viewerCount('viewer.lens.compare', total, {
+            first: viewerKindLabel(selectedKinds[0]),
+            second: viewerKindLabel(selectedKinds[1]),
+            forward: forward,
+            reverse: reverse
+          });
+        } else {
+          var nodeCount = collectKinds().filter(function (kind) { return kind.id === selectedKinds[0]; })[0].nodes.length;
+          status.textContent = viewerText('viewer.lens.single', {
+            nodes: viewerCount('viewer.lens.node', nodeCount, { label: viewerKindLabel(selectedKinds[0]) }),
+            relationships: viewerCount('viewer.lens.relationship', touching)
+          });
+        }
+        updateTrigger();
+        renderKinds();
+        dockPanel(byId);
+        if (options.updateUrl !== false) updateHash();
+        return true;
+      }
+      function prepareForLens() {
+        clearLegendPreview();
+        if (Archify.focus && typeof Archify.focus.clear === 'function') {
+          Archify.focus.clear({ updateUrl: false, preserveView: true });
+        }
+        if (Archify.routeProbe && typeof Archify.routeProbe.clear === 'function') {
+          Archify.routeProbe.clear({ updateUrl: false, restoreFocus: false });
+        }
+        if (Archify.guidedViews && typeof Archify.guidedViews.showAll === 'function') {
+          Archify.guidedViews.showAll({ clearFocus: false, updateUrl: false });
+        }
+        if (Archify.intentTrace && typeof Archify.intentTrace.clear === 'function') {
+          Archify.intentTrace.clear({ announce: false });
+        }
+      }
+      function select(kind, options) {
+        options = options || {};
+        clearLegendPreview();
+        var exists = collectKinds().some(function (entry) { return entry.id === kind; });
+        if (!exists) return false;
+        var index = selectedKinds.indexOf(kind);
+        if (index >= 0) selectedKinds.splice(index, 1);
+        else {
+          if (selectedKinds.length >= 2) return false;
+          if (!selectedKinds.length) prepareForLens();
+          selectedKinds.push(kind);
+        }
+        return applySelection(options);
+      }
+      function close(options) {
+        options = options || {};
+        panel.hidden = true;
+        trigger.setAttribute('aria-expanded', 'false');
+        updateTrigger();
+        if (options.restoreFocus !== false && lensOpener && typeof lensOpener.focus === 'function') lensOpener.focus();
+        return false;
+      }
+      function open(options) {
+        options = options || {};
+        if (html.getAttribute('data-embed') === 'true') return false;
+        lensOpener = options.opener || trigger;
+        if (Archify.exportMenu && Archify.exportMenu.isOpen()) Archify.exportMenu.close(false);
+        if (Archify.finder && Archify.finder.isOpen()) Archify.finder.close({ restoreFocus: false });
+        if (Archify.radar && Archify.radar.isOpen()) Archify.radar.close({ restoreFocus: false });
+        if (Archify.guide && Archify.guide.isOpen()) Archify.guide.close({ restoreFocus: false });
+        renderKinds();
+        panel.hidden = false;
+        trigger.setAttribute('aria-expanded', 'true');
+        updateTrigger();
+        requestAnimationFrame(function () {
+          dockPanel(nodesById());
+          var activeButton = kindsRoot.querySelector('[aria-pressed="true"]');
+          var firstButton = activeButton || kindsRoot.querySelector('button:not(:disabled)');
+          if (firstButton) firstButton.focus();
+        });
+        return true;
+      }
+      function toggle() { return panel.hidden ? open({ opener: trigger }) : close(); }
+      function clear(options) {
+        options = options || {};
+        selectedKinds = [];
+        cleanSvgState();
+        panel.removeAttribute('data-dock-side');
+        updateTrigger();
+        renderKinds();
+        status.textContent = viewerText('viewer.lens.choose');
+        if (options.updateUrl !== false) updateHash();
+        if (options.preserveView !== true && Archify.view && typeof Archify.view.reset === 'function') {
+          Archify.view.reset({ automatic: true });
+        }
+        if (options.closePanel === true) close({ restoreFocus: false });
+        return false;
+      }
+      function fallbackCopy(value) {
+        var field = document.createElement('textarea');
+        field.value = value;
+        field.setAttribute('readonly', '');
+        field.style.position = 'fixed';
+        field.style.opacity = '0';
+        document.body.appendChild(field);
+        field.select();
+        var copied = false;
+        try { copied = document.execCommand('copy'); } catch (_) {}
+        field.remove();
+        return copied;
+      }
+      function copyLink() {
+        if (!selectedKinds.length) return Promise.resolve(false);
+        var value = location.href.replace(/#.*$/, '') + '#lens=' + selectedKinds.map(encodeURIComponent).join('~');
+        var copy = navigator.clipboard && typeof navigator.clipboard.writeText === 'function'
+          ? navigator.clipboard.writeText(value).then(function () { return true; }).catch(function () { return fallbackCopy(value); })
+          : Promise.resolve(fallbackCopy(value));
+        return copy.then(function (copied) {
+          copyBtn.textContent = viewerText(copied ? 'viewer.common.copied' : 'viewer.common.copyFailed');
+          window.setTimeout(function () { copyBtn.textContent = viewerText('viewer.common.copyLink'); }, 1600);
+          return copied;
+        });
+      }
+      function syncFromHash() {
+        try {
+          var params = new URLSearchParams(location.hash.replace(/^#/, ''));
+          var value = params.get('lens');
+          if (!value) {
+            if (selectedKinds.length) clear({ updateUrl: false, preserveView: true });
+            return;
+          }
+          var available = collectKinds().map(function (kind) { return kind.id; });
+          var requested = value.split('~').filter(function (kind, index, list) {
+            return available.indexOf(kind) >= 0 && list.indexOf(kind) === index;
+          }).slice(0, 2);
+          if (!requested.length) return;
+          prepareForLens();
+          selectedKinds = requested;
+          applySelection({ updateUrl: false });
+        } catch (_) {}
+      }
+
+      trigger.addEventListener('click', toggle);
+      if (decorateLegendBridge()) {
+        legendBridge.addEventListener('click', function (event) {
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (entry) activateLegendEntry(entry);
+        });
+        legendBridge.addEventListener('pointerover', function (event) {
+          if (event.pointerType === 'touch' || (finePointerQuery && !finePointerQuery.matches)) return;
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (!entry || (event.relatedTarget && entry.contains(event.relatedTarget))) return;
+          hoveredLegendEntry = entry;
+          syncLegendPreview();
+        });
+        legendBridge.addEventListener('pointerout', function (event) {
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (!entry || (event.relatedTarget && entry.contains(event.relatedTarget))) return;
+          if (hoveredLegendEntry === entry) hoveredLegendEntry = null;
+          syncLegendPreview();
+        });
+        legendBridge.addEventListener('focusin', function (event) {
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (!entry) return;
+          focusedLegendEntry = entry;
+          legendEntries.forEach(function (candidate) {
+            candidate.setAttribute('tabindex', candidate === entry ? '0' : '-1');
+          });
+          syncLegendPreview();
+        });
+        legendBridge.addEventListener('focusout', function (event) {
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (!entry || (event.relatedTarget && entry.contains(event.relatedTarget))) return;
+          if (focusedLegendEntry === entry) focusedLegendEntry = null;
+          syncLegendPreview();
+        });
+        legendBridge.addEventListener('keydown', function (event) {
+          var entry = event.target.closest('[data-legend-kind][role="button"]');
+          if (!entry) return;
+          if (event.key === 'Enter' || event.key === ' ') {
+            event.preventDefault();
+            activateLegendEntry(entry);
+            return;
+          }
+          var index = legendEntries.indexOf(entry);
+          var next = null;
+          if (event.key === 'ArrowRight') next = (index + 1) % legendEntries.length;
+          else if (event.key === 'ArrowLeft') next = (index - 1 + legendEntries.length) % legendEntries.length;
+          else if (event.key === 'Home') next = 0;
+          else if (event.key === 'End') next = legendEntries.length - 1;
+          if (next === null) return;
+          event.preventDefault();
+          legendEntries.forEach(function (candidate, candidateIndex) {
+            candidate.setAttribute('tabindex', candidateIndex === next ? '0' : '-1');
+          });
+          legendEntries[next].focus();
+        });
+      }
+      closeBtn.addEventListener('click', function () { close(); });
+      clearBtn.addEventListener('click', function () { clear({ preserveView: true }); });
+      copyBtn.addEventListener('click', copyLink);
+      kindsRoot.addEventListener('click', function (event) {
+        var button = event.target.closest('[data-kind]');
+        if (!button || button.disabled) return;
+        select(button.getAttribute('data-kind'));
+      });
+      kindsRoot.addEventListener('keydown', function (event) {
+        var buttons = Array.prototype.slice.call(kindsRoot.querySelectorAll('button:not(:disabled)'));
+        var index = buttons.indexOf(document.activeElement);
+        var next = null;
+        if (index >= 0 && (event.key === 'ArrowRight' || event.key === 'ArrowDown')) next = (index + 1) % buttons.length;
+        else if (index >= 0 && (event.key === 'ArrowLeft' || event.key === 'ArrowUp')) next = (index - 1 + buttons.length) % buttons.length;
+        else if (event.key === 'Home' && buttons.length) next = 0;
+        else if (event.key === 'End' && buttons.length) next = buttons.length - 1;
+        if (next !== null) { event.preventDefault(); buttons[next].focus(); }
+      });
+      panel.addEventListener('keydown', function (event) {
+        if (event.key !== 'Escape') return;
+        event.preventDefault();
+        event.stopPropagation();
+        close();
+      });
+      document.addEventListener('click', function (event) {
+        var eventPath = typeof event.composedPath === 'function' ? event.composedPath() : [];
+        var clickedInside = eventPath.indexOf(panel) >= 0 || panel.contains(event.target);
+        var clickedLauncher = event.target === trigger || legendEntries.some(function (entry) {
+          return event.target === entry || entry.contains(event.target);
+        });
+        if (!panel.hidden && !clickedInside && !clickedLauncher) close({ restoreFocus: false });
+      });
+      window.addEventListener('hashchange', syncFromHash);
+      window.addEventListener('resize', function () {
+        if (!panel.hidden && selectedKinds.length) dockPanel(nodesById());
+        layoutLegendBridge();
+      });
+      renderKinds();
+      syncFromHash();
+
+      return {
+        open: open,
+        close: close,
+        toggle: toggle,
+        clear: clear,
+        clearPreview: clearLegendPreview,
+        select: select,
+        copyLink: copyLink,
+        isOpen: function () { return !panel.hidden; },
+        active: function () { return selectedKinds.length ? selectedKinds.slice() : null; },
+        kinds: function () { return collectKinds().map(function (kind) { return { id: kind.id, count: kind.nodes.length }; }); }
+      };
+    })();
+
+    /* ============================================================
+       Diagram Guide — a factual command deck over existing interactions.
+       Counts come from compiled semantics; actions delegate to Finder, Route
+       Probe, Semantic Radar, Semantic Lens, Story Trail, Presentation, theme, export, and
+       camera without adding a second command implementation or SVG state.
+       ============================================================ */
+    Archify.guide = (function () {
+      var html = document.documentElement;
+      var container = document.querySelector('.diagram-container');
+      var svg = container.querySelector(':scope > svg');
+      var trigger = document.getElementById('btn-diagram-guide');
+      var panel = document.getElementById('diagram-guide');
+      var closeBtn = document.getElementById('diagram-guide-close');
+      var stats = document.getElementById('diagram-guide-stats');
+      var actions = document.getElementById('diagram-guide-actions');
+      var feedback = document.getElementById('diagram-guide-feedback');
+      var storyBtn = actions.querySelector('[data-guide-action="story"]');
+      var storyCopy = document.getElementById('diagram-guide-story-copy');
+      var routePanel = document.getElementById('route-probe');
+
+      function viewCount() {
+        return Archify.guidedViews && Number(Archify.guidedViews.count) || 0;
+      }
+      function relationshipCount() {
+        var seen = {};
+        Array.prototype.forEach.call(svg.querySelectorAll('[data-edge-from][data-edge-to]'), function (edge) {
+          var key = edge.getAttribute('data-edge-key') || [
+            edge.getAttribute('data-edge-from'),
+            edge.getAttribute('data-edge-to'),
+            edge.getAttribute('data-edge-label') || ''
+          ].join('\u0000');
+          seen[key] = true;
+        });
+        return Object.keys(seen).length;
+      }
+      function renderFacts() {
+        var nodes = svg.querySelectorAll('[data-node-id]').length;
+        var relationships = relationshipCount();
+        var views = viewCount();
+        stats.textContent = viewerText('viewer.guide.facts', {
+          nodes: viewerCount('viewer.guide.fact.node', nodes),
+          relationships: viewerCount('viewer.guide.fact.relationship', relationships),
+          views: viewerCount('viewer.guide.fact.view', views)
+        });
+        storyBtn.disabled = views === 0;
+        storyBtn.setAttribute('aria-disabled', views === 0 ? 'true' : 'false');
+        storyCopy.textContent = views
+          ? viewerCount('viewer.guide.story.available', views)
+          : viewerText('viewer.guide.story.unavailable');
+      }
+      function actionButtons() {
+        return Array.prototype.slice.call(actions.querySelectorAll('.diagram-guide-action:not(:disabled)'));
+      }
+      function close(options) {
+        options = options || {};
+        panel.hidden = true;
+        html.removeAttribute('data-guide-open');
+        routePanel.removeAttribute('data-guide-open');
+        trigger.setAttribute('aria-expanded', 'false');
+        trigger.setAttribute('aria-label', viewerText('viewer.guide.open'));
+        feedback.textContent = '';
+        if (options.restoreFocus !== false) trigger.focus();
+        return false;
+      }
+      function open() {
+        if (html.getAttribute('data-embed') === 'true') return false;
+        if (Archify.semanticLens && typeof Archify.semanticLens.clearPreview === 'function') Archify.semanticLens.clearPreview();
+        if (Archify.exportMenu && Archify.exportMenu.isOpen()) Archify.exportMenu.close(false);
+        if (Archify.finder && Archify.finder.isOpen()) Archify.finder.close({ restoreFocus: false });
+        if (Archify.radar && Archify.radar.isOpen()) Archify.radar.close({ restoreFocus: false });
+        if (Archify.semanticLens && Archify.semanticLens.isOpen()) Archify.semanticLens.close({ restoreFocus: false });
+        if (Archify.guidedViews && Archify.guidedViews.isPlaying && Archify.guidedViews.isPlaying()) {
+          Archify.guidedViews.pause();
+        }
+        if (Archify.routeProbe && Archify.routeProbe.isJourneyPlaying && Archify.routeProbe.isJourneyPlaying()) {
+          Archify.routeProbe.pauseJourney({ preserveElapsed: true, reason: 'guide' });
+        }
+        renderFacts();
+        panel.hidden = false;
+        html.setAttribute('data-guide-open', 'true');
+        routePanel.setAttribute('data-guide-open', 'true');
+        trigger.setAttribute('aria-expanded', 'true');
+        trigger.setAttribute('aria-label', viewerText('viewer.guide.close'));
+        feedback.textContent = '';
+        requestAnimationFrame(function () {
+          var first = actionButtons()[0];
+          if (first) first.focus();
+        });
+        return true;
+      }
+      function toggle() { return panel.hidden ? open() : close(); }
+      function execute(action) {
+        feedback.textContent = '';
+        if (action === 'story' && !viewCount()) {
+          feedback.textContent = viewerText('viewer.guide.noStory');
+          return false;
+        }
+        close({ restoreFocus: false });
+        if (action === 'find') return Archify.finder.open();
+        if (action === 'route') return Archify.routeProbe.begin({ focusNode: true });
+        if (action === 'map') return Archify.radar.open();
+        if (action === 'lens') return Archify.semanticLens.open();
+        if (action === 'story') return Archify.guidedViews.play();
+        if (action === 'present') return Archify.presentation.enter();
+        if (action === 'export') return Archify.exportMenu.open();
+        if (action === 'theme') return Archify.theme.toggle();
+        if (action === 'preset') return Archify.preset.cycle();
+        if (action === 'reset') return Archify.view.reset();
+        if (action === 'zoom-in') return Archify.view.zoomIn();
+        if (action === 'zoom-out') return Archify.view.zoomOut();
+        return false;
+      }
+      function actionForKey(key) {
+        return {
+          '/': 'find',
+          r: 'route',
+          m: 'map',
+          l: 'lens',
+          p: 'story',
+          f: 'present',
+          e: 'export',
+          t: 'theme',
+          s: 'preset',
+          '0': 'reset',
+          '+': 'zoom-in',
+          '=': 'zoom-in',
+          '-': 'zoom-out'
+        }[key] || null;
+      }
+
+      trigger.addEventListener('click', toggle);
+      closeBtn.addEventListener('click', function () { close(); });
+      actions.addEventListener('click', function (event) {
+        var button = event.target.closest('[data-guide-action]');
+        if (!button || button.disabled) return;
+        event.stopPropagation();
+        execute(button.getAttribute('data-guide-action'));
+      });
+      panel.addEventListener('keydown', function (event) {
+        if (event.key === 'Escape' || event.key === '?') {
+          event.preventDefault();
+          event.stopPropagation();
+          close();
+          return;
+        }
+        var buttons = actionButtons();
+        var index = buttons.indexOf(document.activeElement);
+        var next = null;
+        if (index >= 0 && event.key === 'ArrowRight') next = (index + 1) % buttons.length;
+        else if (index >= 0 && event.key === 'ArrowDown') next = (index + 1) % buttons.length;
+        else if (index >= 0 && event.key === 'ArrowLeft') next = (index - 1 + buttons.length) % buttons.length;
+        else if (index >= 0 && event.key === 'ArrowUp') next = (index - 1 + buttons.length) % buttons.length;
+        else if (event.key === 'Home' && buttons.length) next = 0;
+        else if (event.key === 'End' && buttons.length) next = buttons.length - 1;
+        if (next !== null) {
+          event.preventDefault();
+          event.stopPropagation();
+          buttons[next].focus();
+          return;
+        }
+        var action = actionForKey(event.key.length === 1 ? event.key.toLowerCase() : event.key);
+        if (!action) return;
+        event.preventDefault();
+        event.stopPropagation();
+        execute(action);
+      });
+      document.addEventListener('click', function (event) {
+        if (!panel.hidden && !panel.contains(event.target) && event.target !== trigger) close({ restoreFocus: false });
+      });
+
+      renderFacts();
+      return {
+        open: open,
+        close: close,
+        toggle: toggle,
+        execute: execute,
+        isOpen: function () { return !panel.hidden; },
+        facts: function () {
+          return {
+            nodes: svg.querySelectorAll('[data-node-id]').length,
+            relationships: relationshipCount(),
+            views: viewCount()
+          };
+        }
+      };
+    })();
+
+    /* ============================================================
+       Global keyboard shortcuts
+       ? -> open Diagram Guide
+       T -> toggle theme
+       S -> cycle visual style
+       E -> open export menu
+         F -> toggle presentation stage
+         M -> toggle Semantic Radar
+         L -> toggle Semantic Lens
+         R -> start/clear Route Probe
+         / -> open node finder or the active route endpoint picker
+         + / - -> zoom, 0 -> reset view
+         Escape -> clear temporary trace/focus/view first, then exit presentation
+       Ignored when focus is inside an input/textarea/contenteditable.
+       ============================================================ */
+    document.addEventListener('keydown', function (e) {
+      if (e.metaKey || e.ctrlKey || e.altKey) return;
+      if (e.defaultPrevented) return;
+      var t = e.target;
+      if (t && (t.tagName === 'INPUT' || t.tagName === 'TEXTAREA' || t.isContentEditable)) return;
+      if (Archify.preset && Archify.preset.isOpen() && e.key !== 'Escape' && e.key !== 's' && e.key !== 'S') {
+        Archify.preset.close(false);
+      }
+      if (e.key === '?') {
+        e.preventDefault();
+        Archify.guide.toggle();
+      } else if (e.key === '/') {
+        e.preventDefault();
+        Archify.finder.open();
+      } else if (e.key === 't' || e.key === 'T') {
+        e.preventDefault();
+        Archify.theme.toggle();
+      } else if (e.key === 's' || e.key === 'S') {
+        e.preventDefault();
+        Archify.preset.cycle();
+      } else if (e.key === 'e' || e.key === 'E') {
+        e.preventDefault();
+        if (!Archify.exportMenu.isOpen()) Archify.exportMenu.open();
+      } else if (e.key === 'f' || e.key === 'F') {
+        e.preventDefault();
+        Archify.presentation.toggle();
+      } else if (e.key === 'm' || e.key === 'M') {
+        e.preventDefault();
+        Archify.radar.toggle();
+      } else if (e.key === 'l' || e.key === 'L') {
+        e.preventDefault();
+        Archify.semanticLens.toggle();
+      } else if (e.key === 'r' || e.key === 'R') {
+        e.preventDefault();
+        Archify.routeProbe.toggle({ focusNode: true });
+      } else if (e.key === '+' || e.key === '=') {
+        e.preventDefault();
+        Archify.view.zoomIn();
+      } else if (e.key === '-') {
+        e.preventDefault();
+        Archify.view.zoomOut();
+      } else if (e.key === '0') {
+        e.preventDefault();
+        Archify.view.reset();
+      } else if (e.key === 'Escape' && Archify.preset.isOpen()) {
+        e.preventDefault();
+        Archify.preset.close(true);
+      } else if (e.key === 'Escape' && Archify.semanticLens.isOpen()) {
+        e.preventDefault();
+        Archify.semanticLens.close({ restoreFocus: true });
+      } else if (e.key === 'Escape' && Archify.semanticLens.active()) {
+        e.preventDefault();
+        Archify.semanticLens.clear({ preserveView: true });
+      } else if (e.key === 'Escape' && Archify.guide.isOpen()) {
+        e.preventDefault();
+        Archify.guide.close({ restoreFocus: true });
+      } else if (e.key === 'Escape' && Archify.radar.isOpen()) {
+        e.preventDefault();
+        Archify.radar.close({ restoreFocus: true });
+      } else if (e.key === 'Escape' && Archify.routeProbe.active()) {
+        e.preventDefault();
+        Archify.routeProbe.escape({ restoreFocus: true });
+      } else if (e.key === 'Escape' && Archify.intentTrace.active()) {
+        e.preventDefault();
+        Archify.intentTrace.clear();
+      } else if (e.key === 'Escape' && Archify.focus.active()) {
+        e.preventDefault();
+        Archify.focus.clear({ restoreFocus: true });
+      } else if (e.key === 'Escape' && Archify.presentation.active()) {
+        e.preventDefault();
+        Archify.presentation.exit();
+      }
+    });
+  </script>
+</body>
+</html>