body {
  margin: 0;
  padding: 20px;
  background: #1a1a1a;
  color: #fff;
  font-family: monospace;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

h1 {
  color: #4a9eff;
  margin-bottom: 20px;
}

#gameCanvas {
  border: 2px solid #333;
  background: #000;
  display: block;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}

.controls {
  margin-top: 20px;
  font-size: 14px;
  color: #666;
  text-align: center;
}

.controls p {
  margin: 5px 0;
}