:root{--bg: #0a0a0a;--fg: #e8e8e8;--muted: #888;--accent: #4a7cff;--surface: #161616;--surface-2: #1f1f1f;--border: #2a2a2a}button{font:inherit;background:var(--surface-2);color:var(--fg);border:1px solid var(--border);border-radius:10px;padding:10px 14px;cursor:pointer;min-height:44px;touch-action:manipulation;-webkit-tap-highlight-color:transparent}button:active{transform:scale(.97)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.big{font-size:18px;padding:16px 32px;border-radius:14px}input[type=range]{width:100%;accent-color:var(--accent);height:44px;touch-action:manipulation}.app{display:flex;flex-direction:column;height:100vh;height:100dvh;background:var(--bg);color:var(--fg);overflow:hidden}.empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px;text-align:center;transition:background .12s ease}.empty.dragover{background:#4a7cff14}.empty h1{font-size:40px;margin:0;letter-spacing:-.02em;font-weight:600}.empty p{color:var(--muted);margin:0 0 16px;font-size:15px}.stage{flex:1;position:relative;background:#000;overflow:hidden;min-height:0;cursor:pointer;-webkit-tap-highlight-color:transparent}.stage video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:contain;pointer-events:none}.fs-btn{position:absolute;top:calc(8px + env(safe-area-inset-top));right:calc(8px + env(safe-area-inset-right));width:44px;height:44px;min-height:44px;padding:0;background:#0000008c;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.1);border-radius:10px;color:#fff;font-size:20px;line-height:1;z-index:5;display:flex;align-items:center;justify-content:center}.fs-btn:hover{background:#000000bf}.play-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:64px;color:#ffffffd9;text-shadow:0 4px 16px rgba(0,0,0,.7);pointer-events:none;-webkit-user-select:none;user-select:none}.controls{flex:0 0 auto;background:var(--surface);padding:10px 12px calc(14px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:10px;border-top:1px solid var(--border)}.time-row{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.time{font-variant-numeric:tabular-nums;font-size:13px;color:var(--muted);min-width:120px}.speed-row{display:flex;gap:4px;flex-wrap:wrap}.speed-pill{min-height:38px;padding:6px 12px;font-size:13px;background:var(--bg);border-radius:999px;min-width:44px}.speed-pill.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.scrubber{margin:0}.blend-row{display:flex;gap:8px}.blend-btn{flex:1;font-size:13px;min-height:40px;padding:8px}.sources{display:flex;flex-direction:column;gap:6px;max-height:34vh;overflow-y:auto;-webkit-overflow-scrolling:touch}.source{display:grid;grid-template-columns:minmax(90px,1.1fr) 2fr auto;gap:6px;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:4px 6px}.source.is-ref{border-color:var(--accent)}.src-name{background:transparent;border:none;text-align:left;padding:8px 4px;font-size:13px;display:flex;align-items:center;gap:6px;min-height:44px;min-width:0}.ref-dot{color:var(--accent);font-size:10px;flex:0 0 auto}.src-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.op-slider{height:44px}.src-remove{background:transparent;border:none;color:var(--muted);font-size:24px;padding:0;min-height:44px;width:44px;line-height:1;border-radius:8px}.src-remove:hover{color:#ff6b6b;background:#ff6b6b14}.add-more{border-style:dashed;color:var(--muted);font-size:13px;min-height:44px;padding:8px;background:transparent}.file-input{display:none}@media(orientation:landscape){.app{flex-direction:row}.stage{flex:1 1 auto;min-width:0}.controls{width:clamp(260px,35vw,360px);height:100vh;height:100dvh;overflow-y:auto;border-top:none;border-left:1px solid var(--border);padding:10px 12px calc(14px + env(safe-area-inset-bottom))}.sources{max-height:none;flex:1 1 auto}}.app.pseudo-fs{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999}.app.pseudo-fs .controls{display:none}.app.pseudo-fs .stage{flex:1 1 100%;width:100%}.app.pseudo-fs .fs-btn{top:calc(6px + env(safe-area-inset-top));right:calc(6px + env(safe-area-inset-right))}.fs-scrubber-wrap{position:absolute;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));background:#0000008c;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:14px;border:1px solid rgba(255,255,255,.08);padding:4px 14px;z-index:5}.fs-scrubber-wrap .fs-scrubber{width:100%;margin:0}:root{font-family:system-ui,-apple-system,sans-serif;color-scheme:dark;background:#0a0a0a;color:#e8e8e8}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;width:100%}button{font:inherit;background:#2a2a2a;color:#e8e8e8;border:1px solid #3a3a3a;border-radius:4px;padding:4px 10px;cursor:pointer}button:hover{background:#333}button.primary{background:#4a7cff;border-color:#4a7cff}button.primary:hover{background:#5a8cff}input[type=range]{accent-color:#4a7cff}