Focus ring is barely visible on co-branded Header

Tabbing through a co-branded header on wider screens with no wrapping has a barely visible focus ring (just one edge)

<img width="704" height="114" alt="Image" src="https://github.com/user-attachments/assets/18e1dfb8-b8f8-49e1-98a4-bcbafe076060" />

<img width="726" height="123" alt="Image" src="https://github.com/user-attachments/assets/30a24f8a-2b8b-4c92-abe5-4c0c04662923" />