:root{--bg-primary: #0a0f0d;--bg-secondary: rgba(15, 25, 20, .6);--bg-hover: rgba(15, 25, 20, .8);--text-primary: #f0f4f2;--text-secondary: #a8bdb2;--text-muted: #8fa99b;--accent-green: #1a5d3a;--accent-green-bright: #4ade80;--border-primary: rgba(26, 93, 58, .2);--border-hover: rgba(26, 93, 58, .5);--shadow-green: rgba(0, 66, 37, .3);--code-bg: rgba(15, 25, 20, .9);--code-border: rgba(143, 169, 155, .2)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);background-image:radial-gradient(circle at 20% 50%,rgba(0,66,37,.3) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(26,93,58,.2) 0%,transparent 50%),radial-gradient(circle at 40% 20%,rgba(0,66,37,.2) 0%,transparent 50%);min-height:100vh;color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-family:Playfair Display,serif;font-weight:400;letter-spacing:-.02em}code,pre{font-family:JetBrains Mono,Courier New,monospace}a{color:var(--accent-green-bright);text-decoration:none;transition:color .3s ease}a:hover{color:var(--text-primary)}.app-container{display:flex;min-height:100vh}.navigation{position:fixed;left:0;top:0;width:260px;height:100vh;background:var(--bg-secondary);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-right:1px solid var(--border-primary);padding:2rem 1.5rem;overflow-y:auto}.nav-header{margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border-primary)}.nav-header h2{font-size:1.5rem;margin-bottom:.5rem;color:var(--text-primary)}.nav-subtitle{color:var(--text-muted);font-size:.85rem;text-transform:uppercase;letter-spacing:.05em}.nav-section{margin-bottom:2rem}.nav-section h3{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:.75rem;font-family:Inter,sans-serif;font-weight:600}.nav-link{display:block;padding:.75rem 1rem;color:var(--text-secondary);text-decoration:none;transition:all .3s ease;margin-bottom:.25rem;position:relative}.nav-link:hover{background:rgba(26,93,58,.1);color:var(--text-primary)}.nav-link.active{background:rgba(26,93,58,.2);color:var(--accent-green-bright);border-left:2px solid var(--accent-green-bright)}.nav-footer{margin-top:auto;padding-top:2rem;border-top:1px solid var(--border-primary)}.back-link{color:var(--text-muted);font-size:.85rem;text-decoration:none;transition:color .3s ease}.back-link:hover{color:var(--text-primary)}.main-content{flex:1;margin-left:260px;padding:2rem 3rem;max-width:1400px}.page-header{margin-bottom:3rem}.page-header h1{font-size:2.5rem;margin-bottom:1rem;color:var(--text-primary)}.page-description{font-size:1.1rem;color:var(--text-secondary);line-height:1.7}.demo-container{background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:8px;padding:2rem;margin-bottom:2rem}.demo-header{margin-bottom:1.5rem}.demo-header h2{font-size:1.8rem;margin-bottom:.5rem;color:var(--accent-green-bright)}.demo-header p{color:var(--text-secondary);line-height:1.6}.canvas-container{width:100%;aspect-ratio:16/9;background:#000;border:1px solid var(--border-primary);border-radius:4px;overflow:hidden;position:relative}.shader-canvas{width:100%;height:100%;display:block}.control-panel{background:rgba(0,0,0,.3);border:1px solid var(--border-primary);border-radius:4px;padding:1.5rem;margin-top:1rem}.control-group{margin-bottom:1rem}.control-group:last-child{margin-bottom:0}.control-label{display:block;margin-bottom:.5rem;color:var(--text-secondary);font-size:.9rem}.control-slider{width:100%;height:6px;background:var(--border-primary);border-radius:3px;outline:none;-webkit-appearance:none}.control-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;background:var(--accent-green-bright);border-radius:50%;cursor:pointer;transition:all .3s ease}.control-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.control-slider::-moz-range-thumb{width:18px;height:18px;background:var(--accent-green-bright);border-radius:50%;cursor:pointer;transition:all .3s ease}.control-button{padding:.75rem 1.5rem;background:linear-gradient(135deg,var(--accent-green),var(--accent-green-bright));color:#fff;border:none;border-radius:4px;cursor:pointer;font-weight:500;transition:all .3s ease;margin-right:.5rem}.control-button:hover{transform:translateY(-2px);box-shadow:0 5px 20px var(--shadow-green)}.control-button:active{transform:translateY(0)}.control-button.secondary{background:transparent;border:1px solid var(--accent-green-bright);color:var(--accent-green-bright)}.control-button.secondary:hover{background:rgba(26,93,58,.1)}.code-block{background:var(--code-bg);border:1px solid var(--code-border);border-radius:4px;padding:1.5rem;margin:1rem 0;overflow-x:auto}.code-block pre{color:var(--text-primary);font-size:.9rem;line-height:1.6}.performance-display{position:absolute;top:1rem;right:1rem;background:rgba(0,0,0,.8);padding:.5rem 1rem;border-radius:4px;font-family:JetBrains Mono,monospace;font-size:.85rem;color:var(--accent-green-bright);z-index:10}.editor-container{display:grid;grid-template-columns:1fr 1fr;gap:1rem;height:600px;background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:8px;overflow:hidden}.editor-pane{display:flex;flex-direction:column}.editor-header{padding:1rem;background:rgba(0,0,0,.3);border-bottom:1px solid var(--border-primary)}.editor-header h3{font-size:1rem;color:var(--text-primary);font-family:Inter,sans-serif}.code-editor{flex:1;padding:1rem;background:var(--code-bg);border:none;color:var(--text-primary);font-family:JetBrains Mono,monospace;font-size:.9rem;line-height:1.5;resize:none;outline:none}.preview-pane{display:flex;flex-direction:column}.preview-header{padding:1rem;background:rgba(0,0,0,.3);border-bottom:1px solid var(--border-primary)}.preview-header h3{font-size:1rem;color:var(--text-primary);font-family:Inter,sans-serif}.preview-canvas{flex:1;position:relative;background:#000}@media (max-width: 768px){.navigation{position:static;width:100%;height:auto;border-right:none;border-bottom:1px solid var(--border-primary)}.main-content{margin-left:0;padding:1rem}.app-container{flex-direction:column}.editor-container{grid-template-columns:1fr;height:auto}.canvas-container{aspect-ratio:4/3}}