:root{--bg: #0b0d12;--fg: #e8ecf3;--muted: #8a93a6;--tile: #161a23;--accent: #7cf;--hot: #fc6;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--fg);font:15px/1.4 -apple-system,system-ui,sans-serif;overflow:hidden;touch-action:manipulation}#stage{position:fixed;top:0;right:0;bottom:0;left:0;overflow-y:auto;padding:16px;padding-top:max(16px,env(safe-area-inset-top))}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:900px;margin:0 auto}.tile{aspect-ratio:16 / 10;background:var(--tile);border-radius:12px;display:grid;place-items:center;font-size:28px;color:var(--muted)}.help{max-width:900px;margin:20px auto 0;color:var(--muted)}.help h1{font-size:18px;color:var(--fg);margin:0 0 6px}.scrollpad{height:160vh;border-top:1px dashed #333;padding-top:8px}#preview{position:fixed;right:12px;top:max(12px,env(safe-area-inset-top));width:44vw;max-width:320px;aspect-ratio:16 / 9;border-radius:10px;overflow:hidden;background:#000;opacity:.85}#preview video,#preview canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover}body.mirror #preview video,body.mirror #preview canvas{transform:scaleX(-1)}#cursor{position:fixed;left:0;top:0;width:0;height:0;pointer-events:none;z-index:10;--open: 1}#cursor:before{content:"";position:absolute;left:-9px;top:-9px;width:18px;height:18px;border-radius:50%;background:var(--accent);box-shadow:0 0 18px var(--accent)}#cursor:after{content:"";position:absolute;--r: calc(14px + 22px * var(--open));left:calc(-1 * var(--r));top:calc(-1 * var(--r));width:calc(2 * var(--r));height:calc(2 * var(--r));border-radius:50%;border:2px solid var(--accent);opacity:.7}#cursor[data-state=pinch]:before{background:var(--hot);opacity:.6}#cursor[data-state=pressed]:before,#cursor[data-state=drag]:before{background:var(--hot);box-shadow:0 0 22px var(--hot)}#cursor[data-state=arming]:before{background:var(--muted);box-shadow:none}#cursor[data-state=arming]:after{border-color:var(--hot);opacity:1}#cursor[data-state=scroll]:before{border-radius:4px;height:30px;top:-15px}.ripple{position:fixed;left:0;top:0;pointer-events:none;z-index:9;font-weight:600;font-size:13px;color:var(--hot);animation:pop .9s ease-out forwards}.ripple:before{content:"";position:absolute;left:-20px;top:-20px;width:40px;height:40px;border-radius:50%;border:3px solid currentColor}.ripple.rightClick{color:#f66}.ripple.dragStart,.ripple.dragEnd{color:var(--accent)}@keyframes pop{0%{opacity:1;scale:.6}to{opacity:0;scale:1.8}}#label{position:fixed;left:50%;bottom:calc(44px + env(safe-area-inset-bottom));translate:-50% 0;font-size:22px;font-weight:600;letter-spacing:.02em;text-shadow:0 2px 8px #000}#hud{position:fixed;left:12px;right:12px;bottom:max(10px,env(safe-area-inset-bottom));font:11px/1.3 ui-monospace,Menlo,monospace;color:var(--muted);text-align:center}#hud{display:none}body.debug #hud{display:block}#path{position:fixed;left:50%;transform:translate(-50%);bottom:max(10px,env(safe-area-inset-bottom));font:600 12px/1 system-ui,sans-serif;padding:6px 12px;border-radius:999px;background:#222c;border:1px solid #444;color:var(--muted)}#path[data-path=direct]{color:#7ee2a8;border-color:#2f6e4a}#path[data-path=relay]{color:#f3c26b;border-color:#7a5d24}body.linked .grid,body.linked .help{display:none}#flip{position:fixed;right:12px;top:calc(max(12px,env(safe-area-inset-top)) + min(25vw,180px) + 8px);background:#222a;color:var(--fg);border:1px solid #444;border-radius:8px;padding:6px 10px;font-size:12px}#machine{position:fixed;left:12px;bottom:calc(max(10px,env(safe-area-inset-bottom)) + 34px);z-index:11;background:#222c;color:var(--fg);border:1px solid #444;border-radius:8px;padding:6px 8px;font-size:13px}#gate{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-content:center;gap:12px;text-align:center;background:var(--bg);z-index:20;padding:16px}#gate p{color:var(--muted);max-width:300px;margin:0 auto}#start{font-size:18px;padding:14px 28px;border-radius:12px;border:0;background:var(--accent);color:#012;font-weight:600}body.running #gate{display:none}