hover: on the <span> only fired on the 20×20px visual circle, not the
full 44×44px touch target. Add `group` + `focus-visible:ring-*` to the
outer button; switch to `group-hover:` on the inner span so the visual
response covers the entire interactive area.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- role="tooltip" → role="region" + aria-label={label}: tooltip semantics
are wrong for a click-triggered panel (Nora/Sara)
- expand button to 44×44px with inner visual <span>: WCAG 2.5.8 touch
target for 60+ transcriber audience (Sara/Leonie)
- replace Math.random() with module-level counter: SSR/hydration mismatch
when server and client generate different IDs (Felix)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
