freezmo/public
Martin Dvorak 396da6528a Flashcard flip: paint one face explicitly, never rely on backface-visibility
On a GPU-composited desktop the flipped card showed the question mirrored
over the answer. Both faces are glass layers with backdrop-filter, and on
some compositing paths the front's backface keeps rendering, so the
pre-rotated back face and the mirrored front face both painted.

- The faces are now painted by an explicit visibility swap driven by the
  animation's own rotation (onUpdate): the swap lands at the 90° edge-on
  moment, where it cannot be seen, so exactly one face is ever in the
  render tree — independent of backface-visibility and of the browser's
  3D flattening rules. onAnimationComplete lands the swap for instant
  flips (reduced motion now skips the spring, matching the app's motion
  rules).
- PromptCard takes an optional style so the face can carry the visibility.
- phase-2 suite: the painted-face invariant at rest, flipped and flipped
  back, plus the answer reading inside the card (56 checks).
- README: decision 53. SW -> freezmo-v39.
2026-10-12 07:34:38 +00:00
..
icons Infra: split dev and production (releases, services, deploy script) 2026-10-11 19:25:29 +00:00
file.svg Initial commit from Create Next App 2026-10-05 07:05:33 +00:00
globe.svg Initial commit from Create Next App 2026-10-05 07:05:33 +00:00
next.svg Initial commit from Create Next App 2026-10-05 07:05:33 +00:00
sw.js Flashcard flip: paint one face explicitly, never rely on backface-visibility 2026-10-12 07:34:38 +00:00
vercel.svg Initial commit from Create Next App 2026-10-05 07:05:33 +00:00
window.svg Initial commit from Create Next App 2026-10-05 07:05:33 +00:00