* { margin:0; padding:0; box-sizing:border-box; }
html, body {
  width:100%; height:100%; overflow:hidden;
  background:#0d0713;
  font-family: "Courier New", monospace;
  -webkit-user-select:none; user-select:none;
  -webkit-tap-highlight-color:transparent;
  overscroll-behavior:none;
  touch-action:none;
}
#stage {
  width:100%; height:100%;
  display:flex; align-items:center; justify-content:center;
  background: radial-gradient(circle at 50% 40%, #1c1030 0%, #0d0713 70%);
}
#game {
  display:block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  touch-action:none;
  box-shadow: 0 0 40px rgba(180,90,220,.35);
}
#rotate {
  display:none;
  position:fixed; inset:0; z-index:10;
  background:#0d0713; color:#f2a8c8;
  align-items:center; justify-content:center;
  text-align:center; font-size:18px; line-height:1.8;
}