iOS Chrome (and some Android browsers) auto-hide their URL bar on
scroll. This grows the visual viewport without changing the layout
viewport, so a position:fixed bar pinned to bottom:0 — which is
relative to the layout viewport — appears to float mid-screen with
a gap beneath it. Safari masks the bug because its toolbar shrinks
rather than fully retracting.
Track the delta between the visual and layout viewports via the
VisualViewport API and write it to a --mobile-bar-offset CSS var.
The bar uses translate3d to apply that offset, which both fixes the
gap and enables hardware compositing so it tracks the toolbar
animation without flicker.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
MOB-01: At ≤640px the top inline nav is hidden and replaced by a
fixed bottom tab bar (Search / Compare / Rankings / Admissions) with
icon + label, 56px tap targets, env(safe-area-inset-bottom) padding,
and the Compare count rendered as a badge on the icon. Eliminates
horizontal page overflow on every route (docW was 401–429 at vw 390;
now docW === vw).
MOB-02: Logo link gains a padded hit area so the touch target is
≥44×44 (was 36×36), without resizing the visual mark.
ComparisonToast lifted above the new bottom bar on mobile so the two
do not stack on top of each other. body gets a bottom padding equal
to the bar height + safe-area inset so page content is never hidden.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Increased header z-index from 100 to 1000 to ensure it stays above
Leaflet map elements (which typically use z-index 400-600).
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Migrate from vanilla JavaScript SPA to Next.js 16 with App Router
- Add server-side rendering for all pages (Home, Compare, Rankings)
- Create individual school pages with dynamic routing (/school/[urn])
- Implement Chart.js and Leaflet map integrations
- Add comprehensive SEO with sitemap, robots.txt, and JSON-LD
- Set up Docker multi-service architecture (PostgreSQL, FastAPI, Next.js)
- Update CI/CD pipeline to build both backend and frontend images
- Fix Dockerfile to include devDependencies for TypeScript compilation
- Add Jest testing configuration
- Implement performance optimizations (code splitting, caching)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Tudor Sitaru
tudor