Lucas Berger
c2f89bd55f
feat(17-01): restructure tokens.css to combined :root,[data-theme=light] selector + add --bottom-chrome-h
- Change :root { to :root, [data-theme="light"] { (D-06 combined selector)
- Add --bottom-chrome-h: calc(56px + env(safe-area-inset-bottom, 0px)) to spacing scale
- Keep all 12 --sx-color-* overrides inside the combined block (cascade unchanged)
- Keep --brand-logo-* tokens inside the combined block (verbatim, no value changes)
- Add dark-theme stub as comment-only (Phase 999.20 fills values; no live rule)
- All existing values unchanged; PWA build passes; Schedule-X colors verified via playwright-cli