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

body {
  background: #1a1a1a;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
  color: white;
  font-family: monospace;
}

canvas {
  border: 4px solid #333;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.7);
}