html, body {
    margin: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    touch-action: none;
}

a-scene { width: 100%; height: 100%; touch-action: none; }

#roomTitle {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  background: rgba(0,0,0,0.5);
  color: white;
  font-family: sans-serif;
  border-radius: 20px;
  backdrop-filter: blur(6px);
}