* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #0a0a0a;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

#gameCanvas {
  display: block;
  /* Pixel-art scaling — no blurring */
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}