:root{--bg: #0b0d10;--panel: rgba(16, 19, 24, .72);--panel-solid: rgba(17, 20, 27, .74);--panel-2: rgba(36, 41, 54, .76);--text: #edf0f5;--muted: #9ca7b8;--accent: #4f9dff;--accent-2: #43c7a7;--border: rgba(154, 163, 178, .26);--decoded: #2f7d46;--decoding: #c9952d;--inout: rgba(79, 157, 255, .18);--inout-marker: #4f9dff;--playhead: #ff5a5a;--error: #ff6b6b}*{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:system-ui,Segoe UI,Hiragino Kaku Gothic ProN,Meiryo,sans-serif;font-size:14px}#app{position:fixed;inset:0;overflow:hidden;background:radial-gradient(circle at 50% 20%,#18202a 0,#0b0d10 42%,#07080b)}.topbar{position:fixed;z-index:20;top:0;left:0;right:0;height:34px;display:grid;grid-template-columns:180px minmax(0,1fr) 180px;align-items:center;gap:12px;padding:0 18px;background:#0b0d106b;border-bottom:1px solid rgba(154,163,178,.09);backdrop-filter:blur(10px)}.brand{display:inline-flex;align-items:center;gap:10px;min-width:0}.topbar h1{margin:0;font-size:13px;font-weight:700;letter-spacing:0;white-space:nowrap}.brand a{color:var(--muted);font-size:12px;font-weight:650;text-decoration:none;white-space:nowrap}.brand a:hover{color:var(--text);text-decoration:underline}.filename{grid-column:2;min-width:0;color:#c9d4e5;font-size:12px;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.stage{position:fixed;inset:34px 0 0;overflow:hidden;background:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px),#050608;background-size:28px 28px;cursor:grab;touch-action:none;user-select:none}.chrome-hidden .stage{inset:0}.stage.is-panning{cursor:grabbing}.stage.dragover{outline:2px dashed var(--accent);outline-offset:-12px}#canvas{position:absolute;top:0;left:0;max-width:none;max-height:none;display:block;transform-origin:center center;will-change:transform;background:#000;box-shadow:0 16px 48px #0000007a}.drop-hint{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--muted);text-align:center;pointer-events:none}.drop-hint p{margin:0}.drop-hint .sub{font-size:12px;opacity:.82}.resume-btn,.show-ui-btn{position:fixed;z-index:30;right:18px;bottom:18px;background:var(--accent);color:#fff;border:none;padding:10px 14px;border-radius:6px;cursor:pointer;font-size:13px;font-weight:650;box-shadow:0 10px 30px #00000061}.resume-btn{left:50%;right:auto;transform:translate(-50%)}.error{position:fixed;z-index:40;top:56px;left:50%;transform:translate(-50%);width:min(720px,calc(100vw - 32px));background:#ff6b6b1f;border:1px solid rgba(255,107,107,.72);color:#ffd2d2;padding:10px 12px;border-radius:6px;white-space:pre-wrap;backdrop-filter:blur(12px)}.floating-ui{position:fixed;z-index:25;left:16px;right:16px;bottom:14px;max-width:1180px;margin:0 auto;padding:7px 38px 7px 7px;display:flex;flex-direction:column;gap:5px;background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 14px 54px #0000005c;backdrop-filter:blur(12px)}.collapse-ui-btn{position:absolute;right:7px;bottom:7px;width:28px;min-height:28px;padding:0;border-radius:5px;color:var(--muted);background:#2429368f}.collapse-ui-btn:hover:not(:disabled){color:var(--text)}.show-ui-btn{padding:7px 10px;min-height:28px;background:#242936b8;border:1px solid var(--border);color:var(--text);backdrop-filter:blur(10px)}.info-row,.controls,.legend{display:flex;align-items:center;gap:8px}.zoom-select,.vol{display:inline-flex;align-items:center;gap:6px;color:var(--muted);white-space:nowrap}select,button{background:var(--panel-2);color:var(--text);border:1px solid var(--border);min-height:28px;padding:0 9px;border-radius:6px;cursor:pointer;font-size:12px}select{padding-right:28px;color:#e6ebf3}button:hover:not(:disabled),select:hover{background:#303747}button:disabled{opacity:.45;cursor:default}button.active{background:var(--accent);border-color:var(--accent);color:#fff}#playPause{min-width:84px}.timeline-wrap{width:100%}.timeline{width:100%;height:26px;display:block;background:var(--panel-solid);border:1px solid var(--border);border-radius:5px;cursor:pointer;touch-action:none}.timeline-preview{position:fixed;z-index:45;width:188px;padding:4px;background:#090b0fe0;border:1px solid rgba(154,163,178,.34);border-radius:6px;box-shadow:0 14px 40px #00000073;pointer-events:none;backdrop-filter:blur(10px)}.timeline-preview canvas{display:block;width:180px;height:102px;background:#050608;border-radius:4px}.timeline-preview span{display:block;padding-top:3px;color:var(--text);font-size:11px;text-align:center;font-variant-numeric:tabular-nums}.filmstrip-wrap{width:100%;min-height:64px}.filmstrip{width:100%;height:64px;display:block;background:#0d1015;border:1px solid var(--border);border-radius:6px}.info-row{flex-wrap:wrap;font-variant-numeric:tabular-nums}.time-cluster{display:flex;flex-wrap:wrap;align-items:center;gap:6px;min-width:0}.sep,.metric,.media-info,.mem-usage{color:var(--muted)}.metric{padding-left:8px}.inout-label{color:var(--accent);font-size:12px}.media-info{margin-left:auto;font-size:12px}.mem-usage{font-size:12px}.controls{flex-wrap:wrap}.controls .spacer{flex:0 0 10px}.vol input{width:150px;accent-color:var(--accent)}.legend{flex-wrap:wrap;gap:12px;min-height:28px;color:var(--muted);font-size:12px}.legend span{display:inline-flex;align-items:center;gap:6px}.sw{width:14px;height:10px;border-radius:2px;display:inline-block}.sw-decoded{background:var(--decoded)}.sw-decoding{background:var(--decoding)}.sw-inout{background:var(--inout-marker)}.sw-playhead{background:var(--playhead);width:3px}@media (max-width: 760px){.topbar{grid-template-columns:132px minmax(0,1fr);padding:0 12px}.floating-ui{left:8px;right:8px;bottom:8px}.media-info,.mem-usage{margin-left:0}.vol input{width:112px}}