html, body {
  margin: 0;
  padding: 0;
  background: #0a0d18;
  color: #dcdcdc;
  font-family: "Segoe UI", sans-serif;
  overflow: hidden;
  width: 100%;
  height: 100%;
}

#game-container {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

#game-container canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
}