body {
  margin: 0;
  background: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

canvas {
  background: #1a2b1a;

  /* Fallback for linters and older browsers */
  image-rendering: optimizeSpeed;
  image-rendering: -moz-crisp-edges;    /* Firefox */
  image-rendering: -webkit-optimize-contrast; /* Safari/Chrome (legacy) */
  image-rendering: crisp-edges;
  image-rendering: pixelated;

  /* Optional: disable anti-aliasing for scaled canvas */
  -ms-interpolation-mode: nearest-neighbor;
}