body {
  margin: 0;
  padding: 0;
  background: #0a1f1a;
  overflow: hidden;
  font-family: Georgia, serif;
}
#game-container {
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}
#game-container canvas {
  box-shadow: 0 0 40px rgba(0,0,0,0.6);
}