:root{--bg:#0e1117;--surface:#161b22;--surface-2:#1c2230;--border:#283041;--text:#e6edf3;--text-dim:#8b97a8;--primary:#6366f1;--accent:#22d3ee;--danger:#ef4444;--ok:#10b981}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);margin:0;padding:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}a{color:var(--accent);text-decoration:none}.topbar{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:16px 20px;display:flex}.topbar .logo{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border-radius:7px;place-items:center;width:26px;height:26px;display:grid}.topbar h1{margin:0;font-size:16px;font-weight:650}.topbar .sub{color:var(--text-dim);font-size:12px}.wrap{max-width:760px;margin:0 auto;padding:20px 16px 48px}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:16px}.stage{aspect-ratio:3/4;background:#000;border-radius:14px;width:100%;max-width:420px;margin:0 auto;position:relative;overflow:hidden}.stage video,.stage canvas{object-fit:cover;width:100%;height:100%;position:absolute;inset:0;transform:scaleX(-1)}.stage.flash:after{content:"";background:#fff;animation:.4s ease-out flash;position:absolute;inset:0}@keyframes flash{0%{opacity:.85}to{opacity:0}}.stage .hint{color:#cbd5e1;text-align:center;place-items:center;padding:20px;font-size:14px;display:grid;position:absolute;inset:0}.stage .count{color:#fff;text-shadow:0 4px 24px #0009;place-items:center;font-size:96px;font-weight:700;display:grid;position:absolute;inset:0}.btn{border:1px solid var(--border);background:var(--surface-2);color:var(--text);cursor:pointer;border-radius:11px;justify-content:center;align-items:center;gap:8px;padding:11px 16px;font-size:14px;font-weight:550;transition:all .15s;display:inline-flex}.btn:hover{border-color:var(--primary)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover{filter:brightness(1.08)}.btn.ghost{background:0 0}.btn.danger{border-color:var(--danger);color:var(--danger);background:0 0}.row{flex-wrap:wrap;gap:10px;display:flex}.row.center{justify-content:center}.spacer{height:16px}.filters{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.chip{border:1px solid var(--border);background:var(--surface-2);color:var(--text-dim);cursor:pointer;border-radius:999px;padding:8px 14px;font-size:13px}.chip.active{border-color:var(--primary);color:var(--text);background:#6366f124}.countdown{justify-content:center;align-items:center;display:flex}.dots{justify-content:center;gap:10px;display:flex}.dot{border:2px solid var(--border);border-radius:50%;width:14px;height:14px}.dot.done{background:var(--ok);border-color:var(--ok)}.strip-wrap{justify-content:center;display:flex}.strip-frame{background:#fff;border-radius:12px;padding:14px;box-shadow:0 10px 40px #0006}.strip-canvas{border-radius:4px;display:block}.hidden{display:none}@media (max-width:520px){.wrap{padding:14px 12px 60px}.btn{flex:auto}}