Scaffold design engineering playground

Next.js 16 + TypeScript + Tailwind v4 + Motion project showcasing
interface components built on semantic design tokens:

- Light/dark/system theming from one CSS variable set, with a
  pre-paint script so a saved theme never flashes
- Button, Switch and SegmentedControl with keyboard support, ARIA
  semantics and spring motion that respects reduced-motion
- Vitest + Testing Library tests, including a token-coverage test
- /tokens page documenting colour and motion tokens

Co-Authored-By: Claude Opus 5.5 <[email protected]>
This commit is contained in:
2026-11-09 03:52:46 +00:00
co-authored by Claude Opus 5.5
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