: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:#1a1a2e;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--sidebar-width: 320px;--primary-color: #646cff;--primary-hover: #535bf2;--bg-dark: #1a1a2e;--bg-card: #16213e;--bg-input: #0f3460;--border-color: #2a2a4a;--text-muted: rgba(255, 255, 255, .6)}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;width:100%;height:100%}.app-container{width:100%;height:100%}.home-page{display:flex;width:100%;height:100vh}.viewer-container{flex:1;position:relative;background:var(--bg-dark)}.stl-viewer{width:100%;height:100%}.upload-prompt{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);gap:1rem}.upload-icon{color:var(--primary-color);opacity:.7}.upload-hint{font-size:.875rem;margin:0}.upload-button{padding:.75rem 1.5rem;background:var(--primary-color);color:#fff;border-radius:8px;cursor:pointer;font-weight:500;transition:background .2s}.upload-button:hover{background:var(--primary-hover)}.error-banner{position:absolute;bottom:1rem;left:1rem;right:calc(var(--sidebar-width) + 1rem);padding:1rem;background:#ef4444e6;color:#fff;border-radius:8px;font-size:.875rem}.loading-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:1rem;color:var(--text-muted)}.spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.params-sidebar{width:var(--sidebar-width);height:100vh;background:var(--bg-card);border-left:1px solid var(--border-color);display:flex;flex-direction:column;overflow:hidden}.params-sidebar h2{margin:0;padding:1.25rem 1rem;font-size:1.125rem;font-weight:600;border-bottom:1px solid var(--border-color)}.params-list{flex:1;overflow-y:auto;padding:1rem}.param-group{margin-bottom:1rem}.param-label{display:block;font-size:.75rem;font-weight:500;color:var(--text-muted);margin-bottom:.375rem;text-transform:uppercase;letter-spacing:.5px}.param-group input[type=number]{width:100%;padding:.5rem .75rem;background:var(--bg-input);border:1px solid var(--border-color);border-radius:6px;color:inherit;font-size:.875rem}.param-group input[type=number]:focus{outline:none;border-color:var(--primary-color)}.param-group input[type=number]:disabled{opacity:.5;cursor:not-allowed}.vector3-input{display:flex;gap:.5rem}.vector3-field{flex:1}.vector3-field label{display:block;font-size:.625rem;color:var(--text-muted);margin-bottom:.25rem;text-align:center}.vector3-field input{width:100%;padding:.375rem .5rem;background:var(--bg-input);border:1px solid var(--border-color);border-radius:4px;color:inherit;font-size:.8rem;text-align:center}.checkbox-field{display:flex;align-items:center;gap:.5rem;cursor:pointer}.checkbox-field input[type=checkbox]{width:1rem;height:1rem;accent-color:var(--primary-color)}.sidebar-actions{padding:1rem;border-top:1px solid var(--border-color)}.export-button{width:100%;padding:.75rem;background:var(--primary-color);color:#fff;border:none;border-radius:8px;font-size:.875rem;font-weight:600;cursor:pointer;transition:background .2s}.export-button:hover:not(:disabled){background:var(--primary-hover)}.export-button:disabled{opacity:.5;cursor:not-allowed}.params-list::-webkit-scrollbar{width:6px}.params-list::-webkit-scrollbar-track{background:transparent}.params-list::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}.params-list::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff;--bg-dark: #f5f5f5;--bg-card: #ffffff;--bg-input: #f0f0f0;--border-color: #e0e0e0;--text-muted: rgba(0, 0, 0, .6)}}