- API-key gate is now a fixed, out-of-flow overlay (inset-0, overflow
hidden, overscroll-none) with its own internal scroller, so the document
has no scrollable height on phones. It can't be panned or bounced.
- Home/create mains are flex columns with min-h-dvh and a flex-1 content
area, and the empty state's mobile padding was trimmed, so a short/empty
library is exactly viewport height instead of overflowing by ~76px.
Long pages (the create form, decks) still scroll normally.
- html/body get overscroll-behavior: none to stop pull-to-refresh and
rubber-banding on fitting screens.
Verified with a scroll probe (gate and empty library: scrollHeight ==
viewport; create still scrolls) plus zoom 6/6, install sheet 64/64,
pwa 16/16, final-ux 12/12, retry 14/14, security 8/8, contrast 20/20.
Martin Dvorak
7ab04e9f62