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route-commerce/src/components
Nora a470b6fe9d
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feat(water-log/settings): sticky in-page section nav for Smartsheet card
The Smartsheet card has six stacked sections (Enable, Connection,
Sync frequency, Column mapping, Backfill, Recent activity) — at
1100px viewport that's a long scroll. Add a sticky 'On this page'
pill nav at the top of the card that highlights the active section
as the user scrolls, with anchor jump on click.

- Each <Card> gets a stable id (smartsheet-enable, -connection,
  -frequency, -mapping, -backfill, -activity) and scroll-mt-20 so
  anchor jumps clear the sticky nav.
- IntersectionObserver (rootMargin 0 0 -80% 0) tracks which section
  is in the top 20% of the viewport and updates activeSection state.
- Pill click uses native scrollIntoView, which honors the global
  scroll-behavior: smooth on <html> (auto-flipped to instant under
  prefers-reduced-motion by globals.css — no JS matchMedia needed).
- URL hash updates via history.replaceState so the destination is
  shareable without triggering a second jump.
- Apple HIG polish: rounded-full pills, focus-visible ring,
  active:scale-[0.96], motion-safe: spring transitions, bg-[#fdfaf2]/92
  with backdrop-blur for the sticky chrome.
- All changes additive — no existing Card/ToggleRow behavior modified.

Verified: npx tsc --noEmit clean, npm run build clean,
npm run lint on this file clean.
2026-07-03 15:56:16 -06:00
..