body {
  font-family: system-ui, sans-serif;
  max-width: 800px;
  margin: 2rem auto;
  padding: 1rem;
  line-height: 1.6;
  color: #222;
  background-color: #fff;
}

h1, h2 {
  color: #444;
  margin-top: 2rem;
}

hr {
  margin: 3rem 0;
}

.lang {
  font-weight: bold;
  color: #888;
  margin-top: 3rem;
}

a {
  color: #0645ad;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  body {
    background-color: #111;
    color: #eee;
  }

  h1, h2 {
    color: #ccc;
  }

  a {
    color: #89b4fa;
  }

  .lang {
    color: #aaa;
  }
}