- base.html: conventie breakpoint unic 767px documentata + bloc @media mobil extins - modal full-screen pe mobil (100vw/100vh, fara backdrop lateral, x >=44px, scroll intern) - header/nav colapsat sub 768px + tinte touch >=44px (.icon-btn/.tab-link/.cont-menu) - tests/test_web_responsive.py NOU (3 teste) + prd.json/progress.txt US-006 passes Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>