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ease}.gradient-stop:hover{background:var(--bg-hover);border-color:var(--border-hover)}.gradient-stop.selected{border-color:#4f46e5;background:var(--bg-secondary);box-shadow:0 0 0 1px #4f46e51a}.gradient-stop-color{flex-shrink:0}.gradient-stop-color-preview{width:20px;height:20px;border-radius:4px;border:1px solid var(--border)}.gradient-stop-position{flex:1;display:flex;align-items:center;gap:8px}.gradient-stop-slider{flex:1;height:4px;background:var(--border);border-radius:2px;outline:none;-webkit-appearance:none;appearance:none;cursor:pointer}.gradient-stop-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:#4f46e5;cursor:pointer;border:2px solid white;box-shadow:0 1px 3px #0003;transition:all .15s ease}.gradient-stop-slider::-webkit-slider-thumb:hover{transform:scale(1.1);box-shadow:0 2px 4px #0000004d}.gradient-stop-slider::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#4f46e5;cursor:pointer;border:2px solid white;box-shadow:0 1px 3px #0003;-moz-appearance:none;appearance:none}.gradient-stop-slider::-moz-range-track{height:4px;background:var(--border);border-radius:2px;border:none}.gradient-stop-position-value{font-size:11px;color:var(--text-muted);font-weight:500;min-width:32px;text-align:right}.gradient-stop-remove-button{display:flex;align-items:center;justify-content:center;width:20px;height:20px;border:1px solid var(--border);border-radius:4px;background:var(--bg-tertiary);color:var(--text-muted);cursor:pointer;transition:all .15s ease;flex-shrink:0}.gradient-stop-remove-button:hover{background:#ef4444;border-color:#ef4444;color:#fff}.gradient-stop-remove-button:active{transform:scale(.95)}@media (prefers-color-scheme: dark){.opacity-slider,.gradient-preview-bar{background-image:linear-gradient(45deg,#666 25%,transparent 25%),linear-gradient(-45deg,#666 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#666 75%),linear-gradient(-45deg,transparent 75%,#666 75%)}}@keyframes bounce{0%,20%,53%,80%,to{transform:translateZ(0)}40%,43%{transform:translate3d(0,-8px,0)}70%{transform:translate3d(0,-4px,0)}90%{transform:translate3d(0,-2px,0)}}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;text-align:center;color:var(--text-secondary)}.empty-icon{font-size:48px;margin-bottom:16px;animation:bounce 2s infinite}.empty-state h3{margin:0 0 8px;color:var(--text-primary);font-weight:600}.empty-state p{margin:0 0 24px;font-size:14px}.empty-state small{font-size:12px;opacity:.7}.drag-drop-overlay{position:fixed;inset:0;background:var(--overlay-dark);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:2000;animation:fadeIn .2s ease-out}.drag-drop-content{background:var(--bg-secondary);border:2px dashed var(--primary);border-radius:24px;padding:48px;text-align:center;max-width:400px;animation:scaleIn .3s ease-out}.drag-drop-icon{margin-bottom:24px;animation:bounce 1s infinite}.drag-drop-icon svg{color:var(--primary)}.drag-drop-content h2{margin:0 0 12px;font-size:24px;font-weight:600;color:var(--text-primary)}.drag-drop-content p{margin:0;font-size:16px;color:var(--text-secondary)}.keyboard-shortcuts{position:fixed;bottom:80px;right:20px;display:flex;flex-direction:column;gap:8px;z-index:100}.shortcut{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--overlay-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:8px;font-size:12px;color:var(--text-primary);box-shadow:var(--shadow-sm);transition:all .2s ease;opacity:.7}.shortcut:hover{opacity:1;transform:translate(-4px)}.shortcut kbd{background:var(--primary);color:var(--text-primary);padding:2px 6px;border-radius:4px;font-size:10px;font-weight:600;min-width:16px;text-align:center}.position-indicator{position:absolute;top:20px;right:20px;z-index:100}.position-info{display:flex;flex-direction:column;gap:4px;padding:8px 12px;background:var(--overlay-dark);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:8px;font-size:11px;color:var(--text-primary);box-shadow:var(--shadow-sm);font-family:Monaco,Menlo,Ubuntu Mono,monospace}.position-info span{white-space:nowrap}.pan-notch{position:absolute;top:10px;left:50%;transform:translate(-50%,-6px);z-index:110;opacity:0;transition:opacity .12s ease,transform .12s ease;pointer-events:none}.pan-notch.visible{opacity:1;transform:translate(-50%)}.pan-notch-content{display:flex;gap:12px;align-items:center;padding:8px 16px;background:var(--bg-secondary);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:16px;box-shadow:var(--shadow-lg);border:1px solid var(--border);font-size:11px;color:var(--text-primary);font-family:Monaco,Menlo,Ubuntu Mono,monospace}.pan-notch-content span{white-space:nowrap}.pan-notch-content .pan-notch-xy{display:inline-flex;align-items:center;gap:6px}.performance-controls{position:fixed;top:10px;right:10px;background:var(--bg-secondary);padding:15px;border-radius:8px;box-shadow:var(--shadow-md);z-index:1000;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;min-width:200px;pointer-events:auto}.performance-controls .control-group{margin-bottom:12px;display:flex;align-items:center;gap:8px}.performance-controls .control-group:last-child{margin-bottom:0}.performance-controls label{display:flex;align-items:center;gap:8px;cursor:pointer;-webkit-user-select:none;user-select:none}.performance-controls input[type=checkbox]{margin:0;cursor:pointer}.performance-controls button{background:var(--primary);color:var(--text-primary);border:none;padding:6px 12px;border-radius:4px;cursor:pointer;font-size:12px;transition:background-color .2s}.performance-controls button:hover{background:var(--primary-dark)}.performance-controls button:active{background:var(--accent)}.canvas-container{position:relative;width:100%;height:100%}.touch-device-message{position:fixed;inset:0;background:linear-gradient(135deg,var(--gray-8) 0%,var(--gray-7) 100%);display:flex;align-items:center;justify-content:center;z-index:10000;padding:2rem;box-sizing:border-box}.touch-device-content{background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;padding:3rem 2rem;max-width:500px;width:100%;text-align:center;box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:slideUp .6s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.touch-device-icon{color:var(--primary);margin-bottom:1.5rem;display:flex;justify-content:center}.touch-device-icon svg{width:64px;height:64px}.touch-device-title{font-size:2rem;font-weight:700;color:var(--text-primary);margin:0 0 1rem;line-height:1.2}.touch-device-description{font-size:1.1rem;color:var(--text-secondary);line-height:1.6;margin:0 0 2rem}.touch-device-features{text-align:left;background:var(--bg-hover);border-radius:8px;padding:1.5rem;margin:2rem 0}.touch-device-features h3{font-size:1.1rem;font-weight:600;color:var(--text-primary);margin:0 0 1rem}.touch-device-features ul{list-style:none;padding:0;margin:0}.touch-device-features li{color:var(--text-primary);position:relative;padding:.5rem 0 .5rem 1.5rem}.touch-device-features li:before{content:"✓";position:absolute;left:0;color:var(--success);font-weight:700}.touch-device-footer{font-size:1rem;color:var(--primary);margin:1.5rem 0 0;font-weight:500}@media (max-width: 640px){.touch-device-message{padding:1rem}.touch-device-content{padding:2rem 1.5rem}.touch-device-title{font-size:1.75rem}.touch-device-description{font-size:1rem}}@media (max-width: 480px){.touch-device-content{padding:1.5rem 1rem}.touch-device-title{font-size:1.5rem}.touch-device-icon svg{width:48px;height:48px}}