html, body {
  margin: 0; padding: 0; width: 100%; height: 100%;
  overflow: hidden; background: #000; overscroll-behavior: none;
  touch-action: none;
  -webkit-touch-callout: none; -webkit-user-select: none; user-select: none;
  -webkit-tap-highlight-color: transparent;
}
#unity-canvas {
  position: fixed; left: 0; top: 0;
  width: 100dvw; height: 100dvh;
  display: block; background: #1a1f26;
  touch-action: none; outline: none;
  -webkit-touch-callout: none; -webkit-user-select: none; user-select: none;
}
#loading {
  position: fixed; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 14px;
  background: #0d1014; color: #cfd6de; font: 16px sans-serif; z-index: 5;
}
#bar { width: 50%; max-width: 360px; height: 8px; background: #2a313a; border-radius: 4px; overflow: hidden; }
#bar-fill { width: 0; height: 100%; background: #2fd0e0; }
#rotate {
  display: none; position: fixed; inset: 0; z-index: 10;
  align-items: center; justify-content: center;
  background: #000; color: #fff; font: 600 22px sans-serif;
}
@media (orientation: portrait) {
  #rotate { display: flex; }
}