:root{color-scheme:dark;--bg-primary: #000000;--bg-secondary: #1c1c1e;--bg-tertiary: #2c2c2e;--bg-hover: rgba(255, 255, 255, .1);--bg-active: rgba(255, 255, 255, .15);--accent-blue: #0A84FF;--accent-blue-hover: #0077ED;--accent-purple: #BF5AF2;--accent-orange: #FF9F0A;--accent-teal: #64D2FF;--accent-indigo: #5E5CE6;--accent-red: #FF453A;--text-primary: #FFFFFF;--text-secondary: rgba(235, 235, 245, .6);--text-tertiary: rgba(235, 235, 245, .3);--border-subtle: rgba(255, 255, 255, .1);--border-focus: rgba(10, 132, 255, .5);--glass-heavy: rgba(28, 28, 30, .4);--glass-light: rgba(255, 255, 255, .05);--glass-border-light: rgba(255, 255, 255, .15);--glass-border-heavy: rgba(255, 255, 255, .1);--backdrop-blur-md: blur(20px);--backdrop-blur-lg: blur(40px);--backdrop-saturate: saturate(180%);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-full: 99px}.header{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:var(--glass-heavy);border-bottom:1px solid var(--glass-border-heavy);backdrop-filter:var(--backdrop-blur-lg) var(--backdrop-saturate);-webkit-backdrop-filter:var(--backdrop-blur-lg) var(--backdrop-saturate);position:sticky;top:0;z-index:100;box-shadow:0 4px 24px #0000001a}.header-left,.header-right{display:flex;align-items:center;gap:12px}.header-center{flex:1;text-align:center}.header-title{font-size:15px;font-weight:500;color:var(--text-primary);margin:0}.btn-home{display:flex;align-items:center;gap:8px;height:32px;padding:0 14px;background:#ffffff08;border:1px solid rgba(255,255,255,.1);border-top-color:#ffffff4d;border-bottom-color:#ffffff0d;border-radius:var(--radius-sm);color:var(--text-primary);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s cubic-bezier(.25,1,.5,1);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:inset 0 1px #ffffff1a,0 2px 4px #0000001a}.btn-home:hover{background:#ffffff1a;box-shadow:inset 0 1px #fff3,0 4px 12px #0003,0 0 0 1px #ffffff1a;transform:translateY(-1px)}.btn-secondary{display:flex;align-items:center;gap:8px;height:32px;padding:0 14px;background:#ffffff08;border:1px solid rgba(255,255,255,.1);border-top-color:#ffffff4d;border-radius:var(--radius-sm);color:var(--text-primary);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:inset 0 1px #ffffff1a}.btn-secondary:hover{background:#ffffff1a;box-shadow:inset 0 1px #fff3,0 4px 12px #00000026;transform:translateY(-1px)}.btn-export{display:flex;align-items:center;gap:8px;height:32px;padding:0 16px;background:var(--accent-blue);border:none;border-radius:var(--radius-sm);color:#fff;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;box-shadow:0 2px 4px #0003,inset 0 1px #fff3}.btn-export:hover:not(:disabled){background:var(--accent-blue-hover);box-shadow:0 2px 8px #0a84ff66;transform:none}.btn-export:disabled{opacity:.5;background:var(--bg-tertiary);color:var(--text-tertiary);cursor:not-allowed;box-shadow:none}.video-preview{flex:1;display:flex;align-items:center;justify-content:center;padding:40px;min-height:400px;overflow:hidden}.video-preview-empty{flex:1;display:flex;align-items:center;justify-content:center;background:#0003;border-radius:12px;margin:20px}.upload-prompt{text-align:center;color:#ffffff80}.upload-prompt p{margin:0;font-size:14px}.video-container{position:relative;display:flex;align-items:center;justify-content:center;width:100%;height:100%}.video-canvas{display:block;max-width:100%;max-height:100%;border-radius:4px;image-rendering:auto}.zoom-clip{position:absolute;top:6px;bottom:6px;height:auto;background:var(--accent-orange);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;cursor:grab;-webkit-user-select:none;user-select:none;transition:all .2s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 4px #0000001a;border:1px solid rgba(255,255,255,.1)}.zoom-clip:active{cursor:grabbing;transform:scale(.98)}.zoom-clip.selected{box-shadow:0 0 0 2px #fff,0 4px 12px #0000004d;z-index:10}.zoom-clip.auto{background:linear-gradient(180deg,#ff9f0a,#e68d09)}.zoom-clip.manual{background:linear-gradient(180deg,#64d2ff,#5ac8fa);border:1px solid rgba(255,255,255,.2)}.zoom-label{font-size:11px;font-weight:600;color:#fff;text-transform:capitalize;letter-spacing:.3px;text-shadow:0 1px 2px rgba(0,0,0,.1)}.resize-handle{position:absolute;top:0;bottom:0;width:12px;cursor:ew-resize;z-index:2}.resize-handle.left{left:0;border-radius:var(--radius-md) 0 0 var(--radius-md)}.resize-handle.right{right:0;border-radius:0 var(--radius-md) var(--radius-md) 0}.resize-handle:hover{background:#fff3}.delete-btn{position:absolute;top:-8px;right:-8px;width:20px;height:20px;background:var(--accent-red);border:2px solid var(--bg-secondary);border-radius:50%;color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:5;box-shadow:0 2px 4px #0003;transition:transform .2s}.delete-btn:hover{transform:scale(1.15);background:#ff3b30}.timeline-container{background:var(--glass-heavy);border-top:1px solid var(--glass-border-heavy);padding:16px 24px;backdrop-filter:var(--backdrop-blur-lg) var(--backdrop-saturate);-webkit-backdrop-filter:var(--backdrop-blur-lg) var(--backdrop-saturate);box-shadow:0 -4px 24px #0000001a}.timeline-controls{display:flex;align-items:center;gap:8px;margin-bottom:16px}.control-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-full);color:var(--text-secondary);cursor:pointer;transition:all .2s;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);box-shadow:inset 0 1px #ffffff1a}.control-btn:hover{background:#ffffff26;color:var(--text-primary);transform:scale(1.1);box-shadow:0 4px 12px #0003,inset 0 1px #fff3;border-color:#ffffff4d}.control-btn.play-btn{width:40px;height:40px;background:var(--text-primary);color:var(--bg-primary);border-radius:50%}.control-btn.play-btn:hover{transform:scale(1.05);background:#fff;box-shadow:0 2px 8px #fff3}.time-display{font-size:13px;color:var(--text-secondary);font-family:SF Mono,monospace;font-feature-settings:"tnum";margin-left:8px}.timeline-tools{display:flex;align-items:center;gap:8px;margin-left:auto}.tool-btn{display:flex;align-items:center;gap:8px;height:32px;padding:0 14px;background:linear-gradient(180deg,#ffffff14,#ffffff05);border:1px solid rgba(255,255,255,.1);border-top-color:#ffffff4d;border-bottom-color:#ffffff0d;border-radius:99px;color:var(--text-secondary);font-size:13px;font-weight:500;cursor:pointer;transition:all .25s 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var(--border-subtle);border-radius:99px;color:var(--text-secondary);font-size:13px;font-weight:500}.timeline-tracks{position:relative;margin-top:16px}.time-markers{position:relative;height:28px;margin-bottom:12px}.time-marker{position:absolute;font-size:11px;color:var(--text-tertiary);transform:translate(-50%);font-weight:500;letter-spacing:.2px}.track{display:flex;align-items:center;gap:16px;margin-bottom:12px}.track-label{display:flex;align-items:center;gap:10px;width:110px;font-size:13px;color:var(--text-secondary);flex-shrink:0;font-weight:500}.track-content{flex:1;position:relative;height:56px;background:#ffffff08;border-radius:var(--radius-lg);cursor:pointer;border:1px solid rgba(255,255,255,.05);overflow:hidden}.video-track .track-content{background:#5e5ce614}.video-clip{position:absolute;top:6px;bottom:6px;left:0;height:auto;background:var(--accent-indigo);border-radius:var(--radius-md);display:flex;align-items:center;padding:0 16px;box-shadow:0 4px 12px #5e5ce64d;border:1px solid rgba(255,255,255,.15)}.clip-name{font-size:13px;color:#fff;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:.2px;text-shadow:0 1px 2px rgba(0,0,0,.1)}.effects-track .track-content{background:#ff9f0a0d}.playhead{position:absolute;top:0;bottom:0;width:2px;pointer-events:none;z-index:20}.playhead-head{position:absolute;top:-8px;left:-7px;width:14px;height:14px;background:#fff;border-radius:50%;box-shadow:0 0 0 3px #0000001a,0 2px 6px #0000004d;z-index:2}.playhead-line{position:absolute;top:6px;left:0;width:2px;height:100%;background:#fff;box-shadow:0 0 8px #ffffff80}.tool-btn.disabled,.speed-control.disabled{opacity:.4;cursor:not-allowed;filter:grayscale(100%)}.tool-btn.disabled:hover{transform:none;box-shadow:none;background:linear-gradient(180deg,#ffffff14,#ffffff05)}.properties-panel{width:320px;background:var(--glass-heavy);backdrop-filter:var(--backdrop-blur-lg) var(--backdrop-saturate);-webkit-backdrop-filter:var(--backdrop-blur-lg) 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24px;font-size:20px;font-weight:600}.export-section{margin-bottom:24px}.export-section label{display:block;font-size:13px;color:#8a8a93;margin-bottom:12px}.resolution-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.res-btn{background:#2a2a35;border:1px solid transparent;border-radius:8px;padding:12px;color:#fff;cursor:pointer;transition:all .2s;font-size:14px;font-weight:500}.res-btn:hover{background:#343440}.res-btn.selected{background:#06f;border-color:#06f;box-shadow:0 4px 12px #0066ff4d}.quality-slider-container{padding:0 4px}.quality-track{position:relative;height:4px;background:#2a2a35;border-radius:2px;margin-top:10px;margin-bottom:30px}.quality-range{width:100%;-webkit-appearance:none;background:transparent;outline:none;cursor:pointer;margin:0;position:relative;z-index:2}.quality-range::-webkit-slider-thumb{-webkit-appearance:none;height:18px;width:18px;border-radius:50%;background:#fff;box-shadow:0 2px 6px #0000004d;border:2px solid 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scale(1)}}.main-content{display:flex;flex:1;overflow:hidden}.editor-area{flex:1;display:flex;flex-direction:column;position:relative;overflow:hidden}.upload-area{position:absolute;bottom:20px;left:50%;transform:translate(-50%);text-align:center;background:var(--glass-heavy);padding:24px 32px;border-radius:var(--radius-lg);backdrop-filter:var(--backdrop-blur-lg) var(--backdrop-saturate);-webkit-backdrop-filter:var(--backdrop-blur-lg) var(--backdrop-saturate);border:1px solid var(--glass-border-light);box-shadow:0 8px 32px #0003,inset 0 0 0 1px #ffffff0d}.upload-area p{margin-bottom:12px;font-size:13px;color:var(--text-secondary)}.upload-buttons{display:flex;gap:12px}.upload-buttons button{height:32px;padding:0 16px;background:#0a84ff1a;border:1px solid rgba(10,132,255,.3);border-radius:var(--radius-full);color:var(--accent-blue);font-size:13px;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;font-weight:500}.upload-buttons button:hover{background:#8a63ff4d}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#ffffff0d}::-webkit-scrollbar-thumb{background:#fff3;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#ffffff4d}.rendering-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000a6;backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);display:flex;align-items:center;justify-content:center;z-index:9999;animation:fadeIn .4s cubic-bezier(.16,1,.3,1)}.rendering-modal{background:#1e1e23a6;backdrop-filter:blur(50px) saturate(200%);-webkit-backdrop-filter:blur(50px) saturate(200%);padding:48px;border-radius:28px;border:1px solid rgba(255,255,255,.12);text-align:center;width:380px;box-shadow:0 40px 80px -12px #0009,0 0 0 1px #ffffff14 inset;display:flex;flex-direction:column;align-items:center;gap:24px}.spinner-ring{width:56px;height:56px;border:4px solid 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0}.rendering-status{font-size:13px;color:#ffffffb3;font-variant-numeric:tabular-nums;letter-spacing:.3px;font-weight:500}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}