:root{color:#f5fbff;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--cyan:#52fff3;--cyan-soft:#52fff338;--magenta:#ff3ee6;--violet:#8e55ff;--green:#9bff71;--amber:#ffd166;--panel:#050c18b8;--panel-border:#78fff647;background:#02050b;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;overflow:hidden}button{color:#061016;cursor:pointer;font:inherit;letter-spacing:0;border:0;font-size:13px;font-weight:800}button:disabled{cursor:default;filter:saturate(.6);opacity:.72}#app{background:linear-gradient(#02050c40,#02050ceb),radial-gradient(circle at 35% 28%,#52fff314,#0000 30%),#02050b;min-width:320px;position:relative}#scene{position:absolute;inset:0}#scene canvas{width:100%;height:100%;display:block}.hud{pointer-events:none;gap:12px;width:min(360px,100vw - 24px);display:grid;position:absolute;top:clamp(12px,2.2vw,28px);left:clamp(12px,2.2vw,28px)}.status-panel,.gesture-panel{border:1px solid var(--panel-border);background:linear-gradient(135deg, #52fff314, #ff3ee614), var(--panel);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-radius:8px;box-shadow:0 18px 48px #00000057,inset 0 0 28px #52fff30d}.status-panel{align-items:center;gap:10px;min-height:66px;padding:12px 14px;display:flex}#statusText{color:#f2fdff;white-space:normal;flex:auto;min-width:104px;font-size:14px;font-weight:800}#cameraButton,#demoButton{pointer-events:auto;border-radius:7px;flex:none;min-height:38px;padding:0 14px;box-shadow:0 0 24px #ff3ee63d}#cameraButton{background:linear-gradient(135deg, var(--cyan), var(--magenta))}#demoButton{background:linear-gradient(135deg, var(--amber), var(--green));display:none}#demoButton.is-visible{align-items:center;display:inline-flex}.gesture-panel{gap:4px;max-width:300px;padding:12px 14px 14px;display:grid}#gestureName{color:var(--cyan);text-transform:uppercase;font-size:12px;font-weight:900}#gestureDetail{color:#f5fbffd1;font-size:13px;font-weight:700}#debugText{color:#f5fbff80;font-size:11px;font-weight:700}.charge-meter{background:#ffffff1f;border-radius:999px;width:100%;height:6px;margin-top:6px;overflow:hidden}#chargeBar{border-radius:inherit;background:linear-gradient(90deg, var(--cyan), var(--magenta), var(--amber));width:0%;height:100%;transition:width .12s ease-out;display:block;box-shadow:0 0 18px #52fff3b8}.camera-frame{aspect-ratio:16/9;background:#060a10;border:1px solid #f5fbff47;border-radius:8px;width:min(460px,100vw - 24px);position:absolute;bottom:clamp(12px,2.4vw,32px);right:clamp(12px,2.4vw,32px);overflow:hidden;box-shadow:0 18px 60px #0000006b,0 0 30px #52fff314}#inputVideo{object-fit:cover;opacity:0;width:100%;height:100%;transition:opacity .18s;transform:scaleX(-1)}#inputVideo.is-live{opacity:1}.feed-fallback{color:#f5fbff7a;letter-spacing:0;background:repeating-linear-gradient(0deg,#52fff30a,#52fff30a 1px,#0000 1px 6px),#060a10;place-items:center;font-size:12px;font-weight:900;display:grid;position:absolute;inset:0}.feed-fallback.is-hidden{display:none}@media (width<=720px){.hud{width:calc(100vw - 24px)}.status-panel{flex-wrap:wrap;align-items:stretch}#statusText{flex-basis:100%}#cameraButton,#demoButton{flex:120px}.gesture-panel{max-width:none}.camera-frame{width:min(240px,100vw - 24px)}}