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

html, body {
  width: 100%;
  height: 100%;
  background: #050810;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  font-family: 'Helvetica Neue', sans-serif;
}

#game-container {
  box-shadow: 0 0 60px rgba(60, 120, 255, 0.4);
  border: 2px solid #1a2a44;
}

#game-container canvas {
  display: block;
}