.viewer-container{display:flex;flex-direction:column;width:100%;max-width:1200px;background:#fff;border-radius:8px;box-shadow:0 4px 10px rgba(0,0,0,0.1);overflow:hidden;position:relative}.viewer-content{display:flex;flex-direction:column;align-items:center}.model-container{position:relative;width:100%;height:400px;background-color:#ddd}.model-container canvas{width:100%;height:100%;display:block}.loading-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,0.75);color:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:10}.loading-bar{width:75%;background-color:#e2e8f0;border-radius:9999px;height:8px;margin-top:16px}.loading-bar-progress{background-color:#2b6cb0;height:100%;border-radius:9999px}.fullscreen-btn{padding:5px;width:25px;height:25px;background-color:#191919;color:#fff;border:none;border-radius:5px;cursor:pointer;transition:background-color .3s;position:absolute;bottom:8px;left:8px}.fullscreen-btn:hover{background-color:#2c5282}canvas{display:block;width:100%;height:100%}.canvas-container{height:250px;width:400px;position:relative;border-radius:8px;box-shadow:0 4px 10px rgba(0,0,0,0.1)}