- Dashboard header shortened to match every other page (was notably
taller than the rest).
- Files moved before Settings in the bottom nav.
- Removed the header's course-name badge - purely redundant with the
page's own heading directly below it.
- Fixed a dead link: "Progress" pointed to #stats, but no element
with that id existed anywhere on the page.
- Added a visible :focus-visible ring across all pages - tabbing
through the site previously gave no indication of what was focused.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>