body{margin:0;padding:0;font-family:Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}canvas{display:block}:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.app-container{width:100%;height:100vh;display:flex;flex-direction:column;font-family:Inter,system-ui,sans-serif;color:#333;background-color:#f5f5f5;overflow:hidden}.app-header{padding:1rem 2rem;background-color:#1e293b;color:#fff;box-shadow:0 2px 4px #0000001a}.app-header h1{margin:0;font-size:1.5rem;font-weight:600}.app-content{display:flex;flex:1;flex-direction:row;overflow:hidden}@media (max-width: 768px){.app-content{flex-direction:column;overflow-y:auto}}.viewport-container{flex:3;background-color:#f0f0f0;height:100%;position:relative;border-right:1px solid #ddd;min-height:300px;overflow:hidden}.scene-container{width:100%;height:100%;position:relative;overflow:hidden;box-shadow:inset 0 0 10px #0000001a;min-width:300px;min-height:500px}.reset-view-button{position:absolute;top:10px;left:10px;z-index:10;padding:8px 12px;background-color:#1e293bb3;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.875rem;transition:background-color .2s ease}.reset-view-button:hover{background-color:#1e293be6}.placeholder-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#999;font-size:1.2rem;text-align:center}.controls-panel{flex:1;padding:1rem;background-color:#fff;overflow-y:auto;box-shadow:-2px 0 5px #0000000d;display:flex;flex-direction:column;gap:1.5rem;min-width:300px;height:100%}.panel-section{background-color:#f9f9f9;border-radius:8px;padding:1rem;box-shadow:0 1px 3px #0000001a}.panel-section h2{margin-top:0;margin-bottom:1rem;font-size:1.2rem;font-weight:600;color:#1e293b;border-bottom:1px solid #e2e8f0;padding-bottom:.5rem}.app-footer{padding:1rem;background-color:#1e293b;color:#e2e8f0;text-align:center;font-size:.875rem}