@media (prefers-color-scheme: dark) {
  body {
    background: black;
    color: white;
  }

  h1 {
    border-bottom: 3px solid skyblue;
  }

  footer {
    color: #aaa;
  }

  a {
    color: skyblue;
  }

  .download {
    background: skyblue;
    border-color: skyblue;
    color: black;
  }

  .download:hover {
    filter: brightness(0.7);
  }
}