*{margin:0;padding:0;box-sizing:border-box}body{overflow:hidden;background:#000}#canvas{display:block;width:100vw;height:100vh;cursor:pointer}#nav{position:fixed;top:20px;left:20px;display:flex;align-items:center;gap:16px;z-index:100}#nav .back{padding:8px 16px;border:1px solid rgba(255,255,255,.3);border-radius:20px;background:#00000080;color:#ffffffb3;font-family:system-ui,sans-serif;font-size:13px;text-decoration:none;transition:all .2s;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}#nav .back:hover{background:#ffffff26;color:#fff}#nav .title{color:#ffffff80;font-family:system-ui,sans-serif;font-size:14px;font-weight:300;letter-spacing:.1em;text-transform:uppercase}#controls{position:fixed;top:20px;left:50%;transform:translate(-50%);display:flex;gap:10px;z-index:100}#controls button{padding:8px 16px;border:1px solid rgba(255,255,255,.2);border-radius:20px;background:#00000080;color:#ffffffb3;font-family:system-ui,sans-serif;font-size:14px;cursor:pointer;transition:all .2s;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}#controls button:hover{background:#ffffff26;border-color:#fff6}#controls button.active{background:#6478b44d;border-color:#96aadc99;color:#fff}#controls button .key{display:inline-block;width:18px;height:18px;line-height:18px;text-align:center;background:#ffffff26;border-radius:4px;font-size:11px;margin-right:4px}#hint{position:fixed;bottom:30px;left:50%;transform:translate(-50%);padding:10px 24px;background:#00000080;border:1px solid rgba(255,255,255,.15);border-radius:20px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff9;font-family:system-ui,sans-serif;font-size:13px;z-index:100;pointer-events:none;transition:opacity .5s}#hint.hidden{opacity:0}.hidden{display:none!important}#media-controls{position:fixed;bottom:80px;right:20px;z-index:1000}#drop-zone{width:200px;padding:24px;border:2px dashed rgba(255,255,255,.5);border-radius:12px;background:#000000b3;color:#fff;text-align:center;cursor:pointer;font-family:system-ui,sans-serif}#drop-zone.dragover{border-color:#96aadccc;background:#6478b44d}.url-row{display:flex;gap:8px;margin-top:12px}.url-row input{flex:1;padding:8px;border:1px solid rgba(255,255,255,.3);border-radius:8px;background:#000000b3;color:#fff;font-size:12px}.url-row button{padding:8px 16px;border:1px solid rgba(255,255,255,.3);border-radius:8px;background:#000000b3;color:#fff;cursor:pointer}#record-btn{position:fixed;top:20px;right:20px;width:44px;height:44px;border:2px solid rgba(255,255,255,.4);border-radius:50%;background:#00000080;cursor:pointer;z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .2s;display:flex;align-items:center;justify-content:center}#record-btn:hover{background:#ffffff26;border-color:#fff9}#record-btn:after{content:"";width:16px;height:16px;background:#e53935;border-radius:50%;transition:all .2s}#record-btn.recording{border-color:#e53935;animation:pulse 1s ease-in-out infinite}#record-btn.recording:after{width:14px;height:14px;border-radius:3px;background:#e53935}@keyframes pulse{0%,to{box-shadow:0 0 #e5393566}50%{box-shadow:0 0 0 8px #e5393500}}