/* /zone — endless wireframe racer (POC, phases 0+1). Full-viewport black canvas. The site's body::before scanlines + body::after vignette (from style.css) overlay the canvas at z-index 9998/9999, so the wireframe road gets the same CRT treatment as every other page without any per-page work. */ .zone-page { background: #000; /* Touch-driven game: kill browser default gestures (scroll, pinch, double- tap-to-zoom, callouts, selection) so the canvas owns every pointer. */ touch-action: none; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; overscroll-behavior: none; /* Expose the iOS notch / Dynamic Island inset to the canvas. The HUD is painted directly into the rather than laid out in DOM, so we can't lean on padding: env(...) — instead zone.js reads this custom property in resize() and pushes top-anchored HUD rows down by it. The 0px fallback covers browsers that don't implement env() at all (the value is also 0 on devices without a notch). Paired with the viewport-fit=cover meta in zone.html, which is what makes Safari report a non-zero inset in the first place. */ --safe-top: env(safe-area-inset-top, 0px); } /* The canvas fills the viewport behind the fixed top-bar. main is fixed so it doesn't push body height (which would create a scrollbar on top of the green CRT background). */ .zone { position: fixed; inset: 0; margin: 0; padding: 0; overflow: hidden; } .zone__canvas { display: block; width: 100%; height: 100%; background: #000; touch-action: none; } /* In fullscreen the page chrome (top-bar with // ZONE // and × exit) just clutters the racer — pull it out of the layout so the canvas owns the entire viewport. The fullscreen request targets , so :fullscreen matches the documentElement and the descendant selector hides the header. Legacy WebKit (Safari 13-, older iPad) needs the prefixed variant; rules kept separate because a selector list is dropped wholesale if any selector is unrecognised. */ :fullscreen .top-bar { display: none; } :-webkit-full-screen .top-bar { display: none; } /* iPhone Safari refuses the Fullscreen API on non-