*{margin:0;padding:0;box-sizing:border-box}html,body,#root{width:100%;height:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#000;color:#fff}.xr-button{padding:12px 24px;font-size:16px;font-weight:600;border:none;border-radius:8px;cursor:pointer;transition:all .3s ease;background:#4a90e2;color:#fff}.xr-button:hover{background:#357abd;transform:translateY(-2px);box-shadow:0 4px 12px #4a90e266}.xr-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.loading{display:flex;align-items:center;justify-content:center;width:100%;height:100%;font-size:18px}.error{color:#ff6b6b;background:#ff6b6b1a;padding:16px;border-radius:8px;border:1px solid #ff6b6b}