:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:#ffffffde;background-color:#1a1a1a;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;overflow:hidden;background:#0d0d0d}#root{width:100%;height:100vh;display:flex;justify-content:center;align-items:center;position:relative}canvas{display:block;box-shadow:0 0 20px #00000080;border:1px solid #333}#ui-layer{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;padding:10px;box-sizing:border-box;display:flex;flex-direction:row}.sidebar-left{width:250px;display:flex;flex-direction:column;gap:15px;pointer-events:auto}.control-panel,.tools-panel{background:#000000d9;padding:15px;border-radius:8px;border:1px solid rgba(255,255,255,.2);display:flex;flex-direction:column;gap:10px;color:#fff}h3{margin:0 0 5px;font-size:14px;text-transform:uppercase;color:#aaa;border-bottom:1px solid #444;padding-bottom:5px}.tool-row{display:flex;gap:10px}button{padding:8px 12px;background:#333;border:1px solid #555;color:#fff;cursor:pointer;border-radius:4px;font-size:13px;transition:all .2s}button:hover{background:#444}button.active{background:#007bff;border-color:#0056b3}.stats-panel{pointer-events:auto;background:#000000d9;padding:15px;border-radius:8px;border:1px solid rgba(255,255,255,.2);color:#0f0;font-family:Courier New,monospace;font-size:12px}