* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { background: #0a0e1a; overscroll-behavior: none; -webkit-user-select: none; user-select: none; }
body { display: flex; align-items: center; justify-content: center; min-height: 100vh; overflow: hidden; font-family: sans-serif; touch-action: none; }
#game {
  display: block;
  width: min(100vw, calc(100vh / 760 * 450));
  height: min(100vh, calc(100vw / 450 * 760));
  border-radius: 8px;
  box-shadow: 0 0 40px rgba(41, 217, 255, 0.08);
  background: #0a0e1a;
  touch-action: none;
}