*{margin:0;padding:0;box-sizing:border-box}:root{--bg-dark: #1a1a2e;--bg-panel: #16213e;--accent: #e94560;--text: #eaeaea}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-dark);color:var(--text);min-height:100vh}#app{display:flex;flex-direction:column;height:100vh}.header{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1.5rem;background:var(--bg-panel);border-bottom:1px solid #2a2a4a}.header h1{font-size:1.25rem;font-weight:600}.header .controls{display:flex;gap:.4rem;align-items:center}.dropdown{position:relative}.dropdown-menu{display:none;position:absolute;top:100%;left:0;background:var(--bg-panel);border:1px solid #2a2a4a;border-radius:4px;overflow:hidden;z-index:100;min-width:120px}.dropdown-menu.show{display:block}.dropdown-menu button{display:block;width:100%;padding:.4rem .75rem;text-align:left;background:transparent;border:none;color:var(--text);cursor:pointer;font-size:.8rem}.dropdown-menu button:hover{background:#2a2a4a}button{padding:.4rem .75rem;border:none;border-radius:4px;cursor:pointer;font-weight:500;font-size:.8rem;transition:opacity .2s}button:hover{opacity:.8}#aspect-ratio{padding:.35rem .5rem;background:#2a2a4a;border:1px solid #3a3a5a;border-radius:4px;color:var(--text);font-size:.75rem;cursor:pointer}#btn-play{background:#4a4a6a;color:var(--text)}#btn-export{background:var(--accent);color:#fff}.workspace{flex:1;display:flex;flex-direction:column;padding:.75rem;gap:.75rem;overflow:hidden}.main-area{display:flex;gap:.75rem;flex:0 0 auto;min-height:0}.preview-container{flex:1;display:flex;justify-content:center;align-items:center;background:#0f0f1a;border-radius:6px;overflow:hidden;min-width:0;position:relative}.canvas-zoom-controls{position:absolute;bottom:8px;right:8px;display:flex;align-items:center;gap:.15rem;background:#0009;padding:4px 6px;border-radius:4px;z-index:10}.canvas-zoom-controls button{width:22px;height:22px;padding:0;font-size:.9rem;line-height:1;background:#3a3a5a;color:var(--text);border:none;border-radius:3px;cursor:pointer}.canvas-zoom-controls button:hover{background:#4a4a6a}#canvas-zoom-level{font-size:.55rem;color:#888;min-width:38px;text-align:center}#preview-canvas{max-width:100%;max-height:45vh;background:#000;transition:transform .1s ease-out;cursor:default}#preview-canvas.zoomed{cursor:grab}#preview-canvas.zoomed:active{cursor:grabbing}.properties-panel{width:315px;flex-shrink:0;background:var(--bg-panel);border-radius:6px;padding:.5rem;overflow-y:auto}.left-panel{width:315px;flex-shrink:0;background:var(--bg-panel);border-radius:6px;padding:.5rem;display:flex;flex-direction:column}.left-panel h3{font-size:.7rem;color:#888;margin-bottom:.4rem}.left-panel .info-item{font-size:.65rem;color:#666;padding:.25rem 0;border-bottom:1px solid #2a2a4a}.left-panel .info-label{color:#888;margin-right:.25rem}#duration-slider{width:100%;margin-top:.25rem;height:12px;cursor:pointer}.background-info{margin-top:.5rem;padding-top:.5rem;border-top:1px solid #2a2a4a;display:flex;align-items:center;gap:.3rem;flex-wrap:wrap}.background-info .info-item{flex:1;min-width:0}.btn-small{padding:.2rem .4rem;font-size:.6rem;background:#3a3a5a;color:var(--text);border:none;border-radius:3px;cursor:pointer}.btn-small:hover{background:#4a4a6a}.btn-small.btn-danger{background:#5e2c3d;color:#e74c3c;padding:.2rem .5rem}.btn-small.btn-danger:hover{background:#7a3d4d}.properties-panel h3{font-size:.7rem;color:#888;margin-bottom:.4rem}.properties-panel .no-selection{color:#555;font-size:.65rem}.prop-header{margin-bottom:.25rem;padding-bottom:.2rem;border-bottom:1px solid #2a2a4a}.prop-type{font-size:.6rem;text-transform:uppercase;color:var(--accent)}.prop-grid{display:grid;grid-template-columns:1fr 1fr;gap:.2rem}.prop-col,.prop-col-full{display:flex;flex-direction:column}.prop-col-full{grid-column:1 / -1}.prop-col label,.prop-col-full label{font-size:.55rem;color:#888;margin-bottom:.05rem;display:flex;justify-content:space-between}.prop-col label span,.prop-col-full label span{color:var(--accent);font-size:.55rem}.prop-col input,.prop-col select,.prop-col-full input,.prop-col-full select{padding:.15rem .2rem;background:#2a2a4a;border:1px solid #3a3a5a;border-radius:3px;color:var(--text);font-size:.6rem}.prop-col input[type=range],.prop-col-full input[type=range]{padding:0;height:14px;cursor:pointer}.prop-col input[type=color]{padding:.05rem;height:20px;width:100%}.prop-col input[type=text]{height:22px}.timeline-container{background:var(--bg-panel);border-radius:6px;padding:.5rem;display:flex;flex-direction:column;overflow:hidden;height:256px}.timeline-controls{display:flex;align-items:center;gap:.5rem;margin-bottom:.35rem}#time-display{font-family:monospace;font-size:.7rem;min-width:80px}#timeline-scrubber{flex:1;height:4px;-webkit-appearance:none;background:#2a2a4a;border-radius:2px;cursor:pointer;min-width:100px}.zoom-controls{display:flex;align-items:center;gap:.25rem;margin-left:.5rem}.zoom-controls button{width:24px;height:24px;padding:0;font-size:1rem;line-height:1;background:#2a2a4a;color:var(--text);border:none;border-radius:4px;cursor:pointer}.zoom-controls button:hover{background:#3a3a5a}#zoom-level{font-size:.6rem;color:#888;min-width:40px;text-align:center}#timeline-scrubber::-webkit-slider-thumb{-webkit-appearance:none;width:10px;height:10px;background:var(--accent);border-radius:50%}.timeline-tracks{display:flex;flex-direction:column;gap:3px;margin-bottom:.35rem;position:relative}.timeline-track{display:flex;align-items:center;height:18px;position:relative;background:#1a1a2e;border-radius:3px}.timeline-track-label{width:60px;font-size:.5rem;color:#666;padding:0 4px;flex-shrink:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.timeline-track-bar{position:absolute;height:12px;border-radius:3px;cursor:grab;transition:opacity .2s;display:flex;align-items:center;justify-content:center;overflow:hidden;user-select:none}.timeline-track-bar:hover{opacity:.85}.timeline-track-bar.dragging{opacity:.75;cursor:grabbing;z-index:100}.timeline-track-bar.dragging .resize-handle{pointer-events:none}.timeline-track-bar.active{outline:2px solid var(--accent);outline-offset:1px}.resize-handle{position:absolute;top:0;bottom:0;width:8px;cursor:ew-resize;z-index:5}.resize-handle-left{left:0;border-radius:3px 0 0 3px}.resize-handle-right{right:0;border-radius:0 3px 3px 0}.resize-handle:hover{background:#ffffff4d}.timeline-track-bar span{font-size:.45rem;color:#fffc;padding:0 3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.timeline-track-bar.bar-text{background:#9b59b6;left:60px}.timeline-track-bar.bar-image{background:#27ae60;left:60px}.timeline-track-bar.bar-video{background:#f39c12;left:60px}.timeline-track-bar.bar-audio{background:#e74c3c;left:60px}.track-delete{position:absolute;right:2px;background:transparent;border:none;color:#e74c3c;font-size:.6rem;cursor:pointer;opacity:0;transition:opacity .2s;padding:0 2px}.timeline-track:hover .track-delete{opacity:1}.track-delete:hover{color:#ff6b6b}.timeline-playhead{position:absolute;width:2px;height:100%;background:var(--accent);top:0;left:60px;z-index:10;cursor:ew-resize}.timeline-playhead:before{content:"";position:absolute;top:-4px;left:-4px;width:10px;height:10px;background:var(--accent);border-radius:50%}.timeline-playhead.dragging{background:#ff6b6b}.timeline-playhead.dragging:before{background:#ff6b6b}.timeline-track-bar.overlapping{background-image:repeating-linear-gradient(45deg,transparent,transparent 3px,rgba(0,0,0,.2) 3px,rgba(0,0,0,.2) 6px)}.layer-delete:hover{opacity:1}