:root{--radius: 12px;--radius-sm: 8px;--handle-size: 8px}:root,[data-theme=dark]{--bg: #1C1A17;--bg-card: #252320;--bg-hover: #2E2B27;--bg-canvas: #141210;--text: #E8E4DE;--text-muted: #9A958E;--border: #3A3632;--border-strong: #4A4540;--accent: #C9A882;--accent-hover: #D4B896;--accent-light: #3A3530;--danger: #D47272;--danger-hover: #E08585;--success: #7DB882;--shadow: 0 2px 8px rgba(0, 0, 0, .25);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .35);--ruler-bg: #1C1A17;--ruler-text: #9A958E;--ruler-tick: #4A4540;--ruler-tick-minor: #3A3632}[data-theme=light]{--bg: #FDFBF7;--bg-card: #FFFFFF;--bg-hover: #F8F6F2;--bg-canvas: #E8E4DE;--text: #2D2A26;--text-muted: #7A756E;--border: #E8E4DE;--border-strong: #D4CFC6;--accent: #8B7355;--accent-hover: #7A6548;--accent-light: #F0EBE4;--danger: #C45D5D;--danger-hover: #B34D4D;--success: #6B9B6F;--shadow: 0 2px 8px rgba(45, 42, 38, .08);--shadow-lg: 0 8px 24px rgba(45, 42, 38, .12);--ruler-bg: #FDFBF7;--ruler-text: #7A756E;--ruler-tick: #D4CFC6;--ruler-tick-minor: #E8E4DE}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;overflow:hidden;font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px;line-height:1.5;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{height:100%;display:flex;flex-direction:column}.screen{display:none;height:100%}.screen.active{display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-family:"Source Serif 4",Georgia,serif;font-weight:500;line-height:1.3;color:var(--text)}button{cursor:pointer;border:1px solid var(--border);background:var(--bg-card);color:var(--text);padding:10px 16px;border-radius:var(--radius-sm);font-family:inherit;font-size:14px;font-weight:500;transition:all .2s ease}button:hover{background:var(--bg-hover);border-color:var(--border-strong)}button:focus{outline:none;border-color:var(--accent)}button:disabled{opacity:.4;cursor:not-allowed}button.active{background:var(--accent);border-color:var(--accent);color:#fff}button.active:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.primary-btn{background:var(--accent);border-color:var(--accent);color:#fff}.primary-btn:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.secondary-btn{background:transparent;border-color:var(--border);color:var(--text-muted)}.secondary-btn:hover{background:var(--bg-hover);color:var(--text)}.danger-btn{background:var(--danger);border-color:var(--danger);color:#fff}.danger-btn:hover{background:var(--danger-hover);border-color:var(--danger-hover)}.theme-toggle-btn{width:38px;height:38px;padding:0!important;display:flex;align-items:center;justify-content:center;border-radius:50%!important;font-size:18px;transition:all .3s cubic-bezier(.4,0,.2,1)}.theme-toggle-btn:hover{transform:rotate(15deg) scale(1.1);background:var(--accent-light);color:var(--accent);border-color:var(--accent)}.theme-toggle-btn:active{transform:scale(.9)}input[type=number],input[type=text],select{background:var(--bg-card);border:1px solid var(--border);color:var(--text);padding:8px 12px;border-radius:var(--radius-sm);font-family:inherit;font-size:14px;width:80px;transition:border-color .2s ease}input[type=number]:focus,input[type=text]:focus,select:focus{outline:none;border-color:var(--accent)}input[type=range]{width:100px;vertical-align:middle;accent-color:var(--accent)}input[type=color]{-webkit-appearance:none;appearance:none;border:none;padding:0;cursor:pointer}input[type=color]::-webkit-color-swatch-wrapper{padding:0}input[type=color]::-webkit-color-swatch{border:1px solid var(--border);border-radius:4px}label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);font-weight:500}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::selection{background:var(--accent-light);color:var(--text)}#upload-screen{align-items:center;justify-content:center;background:var(--bg);position:relative}.floating-theme-btn{position:absolute;top:16px;right:16px;z-index:10;box-shadow:var(--shadow)}.drop-zone{width:520px;max-width:90vw;padding:48px 40px;border:2px dashed var(--border-strong);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;background:var(--bg-card);box-shadow:var(--shadow)}.drop-zone:hover{border-color:var(--accent);background:var(--accent-light);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.drop-zone.drag-over{border-color:var(--accent);background:var(--accent-light);border-style:solid;box-shadow:var(--shadow-lg)}.drop-zone-content{text-align:center}.drop-zone-icon{font-size:56px;margin-bottom:20px;color:var(--accent);opacity:.8}.drop-zone-content h2{font-size:24px;margin-bottom:8px;color:var(--text)}.drop-zone-content p{color:var(--text-muted);font-size:15px}.drop-zone-hint{margin-top:24px;font-size:13px!important;color:var(--text-muted);opacity:.8;line-height:1.6}#editor-screen{background:var(--bg)}#editor-main{flex:1;display:flex;overflow:hidden;min-height:0;padding:16px;gap:16px}#canvas-area{flex:1;display:flex;align-items:center;justify-content:center;background:var(--bg-canvas);position:relative;overflow:hidden;border-radius:var(--radius);box-shadow:inset 0 2px 8px #2d2a260f}#canvas{display:block;border-radius:4px;box-shadow:var(--shadow-lg)}#playback-controls{display:flex;align-items:center;gap:8px;padding:12px 24px;background:var(--bg-card);border-top:1px solid var(--border)}#playback-controls button{width:36px;height:32px;padding:0;font-size:14px;display:flex;align-items:center;justify-content:center;background:var(--bg)}#playback-controls button:hover{background:var(--accent-light)}#time-display{font-family:Outfit,monospace;font-size:13px;font-weight:500;margin-left:16px;color:var(--text-muted);letter-spacing:.3px}#timeline{background:var(--bg-card);border-top:1px solid var(--border)}#timeline-header{display:flex;align-items:center;justify-content:space-between;padding:8px 24px;border-bottom:1px solid var(--border)}#timeline-expand{width:32px;height:28px;padding:0;font-size:10px;background:var(--bg);border:1px solid var(--border);color:var(--text-muted);cursor:pointer;transition:transform .2s ease,background .2s ease;border-radius:var(--radius-sm)}#timeline-expand:hover{background:var(--accent-light);color:var(--accent)}#timeline-expand.expanded{transform:rotate(180deg)}#timeline-zoom{display:flex;gap:6px}#timeline-zoom button{width:32px;height:28px;padding:0;font-size:16px;font-weight:600;background:var(--bg)}#timeline-zoom button:hover{background:var(--accent-light)}#timeline-body{position:relative;overflow-x:auto;overflow-y:hidden;height:120px;transition:height .2s ease;background:var(--bg)}#timeline-body.expanded{height:280px;overflow-y:auto}#timeline-ruler{display:block;height:32px;cursor:pointer}#timeline-playhead{position:absolute;top:0;left:0;width:2px;height:100%;background:var(--accent);pointer-events:none;z-index:10}#timeline-playhead:before{content:"";position:absolute;top:0;left:-5px;width:12px;height:10px;background:var(--accent);clip-path:polygon(0 0,100% 0,50% 100%)}#timeline-spans{position:relative;min-height:60px;padding-top:6px}.span-lane{position:absolute;left:0;right:0;height:28px;display:flex;align-items:center}.span-drag-handle{position:sticky;left:8px;width:18px;height:20px;background:var(--bg-card);border:1px solid var(--border);border-radius:4px;cursor:grab;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--text-muted);flex-shrink:0;z-index:5;margin-right:-18px;transition:all .2s ease}.span-drag-handle:hover{background:var(--accent-light);color:var(--accent);border-color:var(--accent)}.span-drag-handle:active{cursor:grabbing}.span-lane.dragging{opacity:.5;z-index:100}.span-lane.drag-over{border-top:2px solid var(--accent)}.span-bar{position:absolute;height:22px;top:3px;border-radius:6px;opacity:.85;cursor:grab;min-width:6px;transition:opacity .15s ease,transform .1s ease;box-shadow:0 1px 3px #2d2a2626}.span-bar:active{cursor:grabbing}.span-bar:hover{opacity:1;transform:scaleY(1.05)}.span-bar.selected{opacity:1;outline:2px solid var(--accent);outline-offset:2px}.span-handle{position:absolute;top:0;width:8px;height:100%;cursor:ew-resize;background:#ffffff40;border-radius:3px;opacity:0;transition:opacity .15s ease}.span-bar:hover .span-handle{opacity:1}.span-handle:hover{background:#ffffff80}.span-handle-left{left:0;border-radius:6px 0 0 6px}.span-handle-right{right:0;border-radius:0 6px 6px 0}#toolbar{display:flex;align-items:center;gap:16px;padding:12px 24px;background:var(--bg-card);border-bottom:1px solid var(--border);flex-wrap:wrap}.toolbar-group{display:flex;align-items:center;gap:6px}.toolbar-group+.toolbar-group{padding-left:16px;border-left:1px solid var(--border)}.toolbar-right{margin-left:auto;border-left:none!important;padding-left:0!important}.tool-btn,.type-btn{padding:8px 14px;font-size:13px;background:var(--bg)}.tool-btn:hover,.type-btn:hover{background:var(--accent-light)}.toolbar-label{font-size:13px;color:var(--text-muted);gap:8px}.toolbar-label input[type=color]{width:32px;height:28px;padding:2px;border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;background:var(--bg-card)}.toolbar-label input[type=range]{width:100px}#property-panel{width:240px;background:var(--bg-card);border-radius:var(--radius);padding:20px;overflow-y:auto;box-shadow:var(--shadow);flex-shrink:0}#property-panel h3{font-size:11px;font-family:Outfit,sans-serif;font-weight:600;margin-bottom:16px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.prop-group{margin-bottom:16px}.prop-group label{margin-bottom:8px;font-size:13px;color:var(--text-muted)}.prop-group input[type=number]{width:70px}.prop-group select{width:100%;padding:10px 12px}.prop-group input[type=range]{width:100%}.prop-group input[type=color]{width:36px;height:32px;border-radius:var(--radius-sm)}.prop-actions{display:flex;gap:8px;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}.prop-actions button{flex:1;padding:10px 12px;font-size:13px}.no-selection .hint{color:var(--text-muted);font-size:14px;text-align:center;margin-top:32px;line-height:1.6}.modal{position:fixed;inset:0;background:#2d2a2666;display:flex;align-items:center;justify-content:center;z-index:1000;backdrop-filter:blur(2px)}.modal[hidden]{display:none}.modal-content{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:32px;width:420px;max-width:90vw;text-align:center;box-shadow:var(--shadow-lg);animation:modalIn .2s ease}@keyframes modalIn{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}.modal-content h3{margin-bottom:20px;font-size:20px}.progress-bar{width:100%;height:8px;background:var(--bg);border-radius:4px;overflow:hidden;margin-bottom:16px}.progress-fill{height:100%;background:var(--accent);transition:width .2s ease;width:0%;border-radius:4px}#export-status{color:var(--text-muted);font-size:14px;margin-bottom:20px}.modal-settings{width:500px;text-align:left;padding:24px}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border)}.modal-header h3{margin:0;font-size:22px}.close-btn{background:none;border:none;font-size:28px;color:var(--text-muted);cursor:pointer;padding:0;line-height:1;width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);transition:all .2s ease}.close-btn:hover{color:var(--text);background:var(--bg-hover)}#keybind-list{max-height:380px;overflow-y:auto;margin:0 -24px;padding:0 24px}.keybind-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--border)}.keybind-row:last-child{border-bottom:none}.keybind-label{font-size:14px;color:var(--text)}.keybind-input{width:130px;padding:8px 12px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-family:inherit;font-size:13px;font-weight:500;text-align:center;cursor:pointer;transition:all .2s ease}.keybind-input:hover{border-color:var(--border-strong)}.keybind-input:focus{outline:none;border-color:var(--accent);background:var(--bg-card)}.keybind-input.recording{border-color:var(--accent);background:var(--accent-light);animation:pulse 1s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.modal-footer{margin-top:20px;padding-top:20px;border-top:1px solid var(--border);text-align:right}.modal-confirm{width:380px}.modal-confirm h3{margin-bottom:12px;text-align:left}.modal-confirm p{color:var(--text-muted);font-size:15px;margin-bottom:24px;line-height:1.6;text-align:left}.confirm-buttons{display:flex;gap:12px;justify-content:flex-end}.confirm-buttons button{min-width:90px}