:root{--bg-primary: #1e1e1e;--bg-secondary: #2d2d2d;--bg-dark: #191919;--text-primary: #ffffff;--text-secondary: #b3b3b3;--border-color: #404040;--accent-color: #ff6600;--accent-hover: #ff8533;--shadow-sm: 0 2px 8px rgba(0,0,0,.3);--shadow-md: 0 4px 16px rgba(0,0,0,.4);--radius: 6px;--grid-minor: rgba(100, 100, 100, .15);--grid-major: rgba(80, 80, 80, .3);--node-bg-start: #2d2d2d;--node-bg-end: #404040;--node-header-start: #404040;--node-header-end: #2d2d2d;--node-border: #555555;--node-text: #ffffff;--node-selected-border: #ff6600;--signal-audio: #4CAF50;--signal-control: #2196F3;--signal-frequency: #9C27B0;--signal-gate: #FF9800;--signal-trigger: #F44336}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}.app-container{display:flex;flex-direction:column;height:100vh}.header{background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;box-shadow:var(--shadow-sm)}.header-left{display:flex;align-items:center;gap:2rem}.app-title{font-size:1.5rem;font-weight:600;color:var(--text-primary)}.status-indicators{display:flex;gap:1rem}.status-indicator{display:flex;align-items:center;gap:.5rem;font-size:.875rem}.status-dot{width:8px;height:8px;border-radius:50%;background-color:#666;transition:background-color .3s ease}.status-indicator.loading .status-dot{background-color:#ff9800;animation:pulse 1.5s infinite}.status-indicator.ready .status-dot{background-color:#4caf50}.status-indicator.error 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.5rem}.main-content{display:flex;flex:1;overflow:hidden}.sidebar{width:280px;background-color:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;overflow:hidden}.sidebar-title,.panel-title{font-size:1rem;font-weight:600;margin-bottom:1rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.sidebar-header{padding:1.5rem 1.5rem 1rem;border-bottom:1px solid var(--border-color)}.sidebar-title{margin:0 0 1rem}.search-container{position:relative}.search-input{width:100%;padding:.75rem 2.5rem .75rem 1rem;border:1px solid var(--border-color);border-radius:6px;font-size:.875rem;background-color:var(--bg-primary);transition:all .2s;outline:none}.search-input:focus{border-color:var(--accent-color);box-shadow:0 0 0 3px #2196f31a}.search-icon{position:absolute;right:.75rem;top:50%;transform:translateY(-50%);color:var(--text-secondary);pointer-events:none;font-size:1rem;line-height:1}.node-list-container{flex:1;overflow-y:auto;padding:.5rem 0}.node-item{display:flex;flex-direction:row;align-items:center;gap:.75rem;padding:.75rem 1.5rem;cursor:grab;transition:all .2s ease;border-bottom:1px solid rgba(0,0,0,.05);user-select:none;-webkit-user-select:none}.node-item:last-child{border-bottom:none}.node-item:hover{background-color:var(--bg-primary);transform:none}.node-item:active{cursor:grabbing;background-color:#2196f31a}.node-item.hidden{display:none}.node-name{font-size:.875rem;font-weight:500;color:var(--text-primary);margin-bottom:.25rem}.beta-label{font-size:.65rem;font-weight:600;color:var(--accent-color);background:#ff660026;padding:1px 4px;border-radius:3px;margin-left:6px;vertical-align:middle;border:1px solid rgba(255,102,0,.3)}.node-description{font-size:.75rem;color:var(--text-secondary);line-height:1.3}.node-icon{width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}.node-icon i{font-size:20px;line-height:1}.node-content{display:flex;flex-direction:column;flex:1}.node-icon.generator{background:linear-gradient(135deg,#4caf50,#66bb6a);color:#fff}.node-icon.modulation{background:linear-gradient(135deg,#9c27b0,#ba68c8);color:#fff}.node-icon.processor{background:linear-gradient(135deg,#2196f3,#64b5f6);color:#fff}.node-icon.input{background:linear-gradient(135deg,#ff9800,#ffb74d);color:#fff}.node-icon.output{background:linear-gradient(135deg,#e91e63,#f48fb1);color:#fff}.node-icon.utility{background:linear-gradient(135deg,#607d8b,#90a4ae);color:#fff}.node-item.dragging{opacity:.5;cursor:grabbing}.node-item.clicked{transform:scale(.95);transition:transform .1s}.canvas-container.drag-over{background:linear-gradient(135deg,#e3f2fd,#bbdefb)!important;border:2px dashed #2196f3!important;transition:all .2s}.canvas-container{flex:1;position:relative;background:linear-gradient(rgba(100,100,100,.15) 1px,transparent 1px),linear-gradient(90deg,rgba(100,100,100,.15) 1px,transparent 1px),linear-gradient(rgba(80,80,80,.3) 2px,transparent 2px),linear-gradient(90deg,rgba(80,80,80,.3) 2px,transparent 2px),linear-gradient(145deg,#1e1e1e,#2d2d2d,#3a3a3a);background-size:20px 20px,20px 20px,100px 100px,100px 100px,100% 100%;background-position:0 0,0 0,0 0,0 0,0 0;box-shadow:inset 0 1px 3px #0000004d;overflow:hidden;cursor:grab}@media (-webkit-min-device-pixel-ratio: 2),(min-resolution: 192dpi){.canvas-container{background-size:20px 20px,20px 20px,100px 100px,100px 100px,100% 100%}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.node-description,.property-label{-webkit-font-smoothing:subpixel-antialiased}}.canvas-container:active{cursor:grabbing}#graph-canvas{display:block;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;transform:translateZ(0);backface-visibility:hidden;position:absolute;top:0;left:0;user-select:none;-webkit-user-select:none}.properties-panel{width:300px;background-color:var(--bg-secondary);border-left:1px solid var(--border-color);padding:1.5rem;overflow-y:auto}.properties-content{display:flex;flex-direction:column;gap:1rem}.placeholder-text{color:var(--text-secondary);font-size:.875rem;text-align:center;padding:2rem}.property-group{display:flex;flex-direction:column;gap:.5rem}.property-label{font-size:.875rem;font-weight:500;color:var(--text-secondary)}.property-input{width:100%;padding:.5rem;border:1px solid var(--border-color);border-radius:calc(var(--radius) / 2);font-size:.875rem;background-color:var(--bg-primary);transition:border-color .2s}.property-input:focus{outline:none;border-color:var(--accent-color)}.node-title{margin:0 0 1rem;color:var(--text-primary);font-size:1.1rem;font-weight:600;text-transform:capitalize;padding-bottom:.5rem;border-bottom:1px solid var(--border-color)}.property-checkbox{width:auto;padding:0;margin-right:.5rem}.modal{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.modal.hidden{display:none}.modal-content{background-color:var(--bg-secondary);border-radius:var(--radius);box-shadow:var(--shadow-md);width:90%;max-width:800px;max-height:80vh;display:flex;flex-direction:column}.modal-header{padding:1.5rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.modal-header h2{font-size:1.25rem;font-weight:600}.close-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-secondary);width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;border-radius:calc(var(--radius) / 2);transition:background-color .2s}.close-btn:hover{background-color:var(--bg-primary)}.modal-body{flex:1;overflow-y:auto;padding:1.5rem}.modal-body pre{background-color:var(--bg-dark);color:#f8f9fa;padding:1rem;border-radius:calc(var(--radius) / 2);overflow-x:auto;font-size:.875rem;line-height:1.5}.modal-footer{padding:1rem 1.5rem;border-top:1px solid var(--border-color);display:flex;gap:.5rem;justify-content:flex-end}@media (max-width: 768px){.sidebar{width:160px}.properties-panel{width:240px}.header{padding:.75rem 1rem}.app-title{font-size:1.25rem}}