body { padding: 0; margin: 0 }
#unity-container { position: fixed; width: 100%; height: 100%; }
#unity-canvas { width: 100%; height: 100%; background: #231F20 }
#unity-warning { position: absolute; left: 50%; top: 5%; transform: translate(-50%); background: white; padding: 10px; display: none }