body {
    margin: 0;
    overflow: hidden;
    background: #000;
    color: #fff;
    font-family: Arial, sans-serif;
  }
  
  #game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
  }
  
  #game-canvas {
    display: block;
    background: #111;
  }
  
  #hud {
    position: absolute;
    top: 10px;
    left: 10px;
  }