Three fixes for the cookie banner:
1. role="dialog" aria-modal="true" → <section role="region">. The
banner has no focus trap, doesn't block the page, and the user
can keep using the canvas while it's up — none of which are modal
semantics. Claiming aria-modal="true" without a trap actively
harms screen-reader users: they're told the rest of the page is
inert, jump into the banner, and then can't escape. Region
semantics let AT navigate around it normally. (Forcing a modal
cookie banner would also be a dark pattern under GDPR.)
2. Privacy-policy link: hover:text-accent → hover:text-accent-strong.
The original was a no-op (same color). Also added focus-visible
ring + underline-offset so the link is readable AND keyboard-
distinguishable in both themes.
3. Both buttons: focus-visible:ring-2 + ring-offset-surface so
keyboard users see where focus lands. Mouse clicks unchanged
thanks to focus-visible.
Tests: swapped getByRole("dialog") → getByRole("region") in 8
existing tests, then tightened the role-assertion test into a
regression guard that explicitly asserts NO aria-modal and NO
dialog role exist. Full suite: 1220/1220.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>