Contrast issue on buttons - Group and Site creation

When you mouseover the buttons in the group creation process, the hover state renders the text inaccessible. This happens throughout the process and on the Create a Site page. See image below:

<img width="1745" height="889" alt="Image" src="https://github.com/user-attachments/assets/435b517e-69ff-472d-8d6c-30f1eebfb972" />