`prefers-reduced-motion` ignored
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Rule · bucket: judgment · severity: note · detector: none · since: v0.1.0
Section: Things to avoid
Group: Motion

Forbidden:
  Animation with no reduced-motion path

Instead:
  Always provide the reduced path. Non-negotiable — this is a vestibular safety issue, not a preference.

**A consequence worth stating: motion is never the sole signal, for the same reason colour is not (`C-20`).** Honouring the reduced-motion path removes the animation, so any state that was communicated by movement alone is communicated to that user by nothing at all. A field that only shakes on a bad password has no error state under reduced motion. Pair the motion with text, an icon, or a colour change that survives without it.