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

body {
  background-color: #1a1a2e;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#game-container {
  border: 4px solid #00aaff;
  border-radius: 8px;
  box-shadow: 0 0 20px rgba(0, 170, 255, 0.5);
}

canvas {
  display: block;
}