:root {
  font-family: 'Courier New', Courier, monospace;
  background-color: #111;
  color: #0f0;
}

body {
  margin: 0;
  display: flex;
  place-items: center;
  justify-content: center;
  min-width: 320px;
  min-height: 100vh;
  overflow: hidden;
  touch-action: none; /* Prevent default touch actions like scroll/zoom */
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}