html{overflow:hidden;width:100%;height:100%}body{margin:0;font-family:Consolas,monaco,monospace;font-size:14px;color:#fff;height:100vh;background:#000;overscroll-behavior:none}canvas{position:absolute;top:0;left:0;border:none}.loading-spinner{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;z-index:10;background:#000c;padding:30px;border-radius:8px;border:1px solid #444}.spinner-image{width:64px;height:64px;margin-bottom:15px}.loading-text{color:#fff;font-family:Consolas,monaco,monospace;font-size:14px;margin:0;text-align:center}.ui-panel{position:absolute;top:10px;right:10px;width:274px;background:#000c;border:1px solid #444;border-radius:4px;padding:10px;font-family:Consolas,monaco,monospace;z-index:1}.ui-title{margin:0 0 15px;padding:8px;background:#333;color:#fff;text-align:center;font-size:14px;font-weight:700;border-radius:2px}.ui-buttons{display:flex;gap:5px;margin-bottom:15px}.ui-button{flex:1;padding:8px;background:#555;color:#fff;border:none;border-radius:2px;font-family:Consolas,monaco,monospace;font-size:12px;cursor:pointer;transition:background .2s}.ui-button:hover{background:#666}.ui-button:active{background:#777}.ui-drop-text{margin:0;padding:8px;background:#333;color:#fff;text-align:center;font-size:12px;border-radius:2px}#layerLabel{position:fixed;left:8px;bottom:8px;padding:4px 8px;background:#0009;color:#fff;font-size:12px;line-height:16px;border-radius:4px;z-index:9999;pointer-events:none}