Single responsive tree (Tailwind lg:) — mobile experience unchanged; desktop
chrome is gated to the home route for now.
- DesktopHeader / DesktopFooter components (visible only at lg+), wired to
real routes with live cart badge and working search
- MyLayout: render desktop header/footer on home, expand container and hide
mobile bottom nav at lg
- Home: hide mobile top bar at lg, 1320px centered container, desktop hero
grid (carousel + 2 promos), larger section headers
- SellerTilesGrid: 2-col mobile -> 5-col desktop with name overlay
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
