body {
  margin: 0;
  padding: 0;
  background-color: #2c3e50;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-family: Arial, sans-serif;
  overflow: hidden;
}

#game-container {
  position: relative;
  border: 2px solid #34495e;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

canvas {
  display: block;
  margin: 0 auto;
}