@media (prefers-color-scheme: dark) {
  body {
    background: #121212;
    color: #d5d5d5;
  }
}
body {
  margin: 1em auto;
  max-width: 40em;
  padding: 0 0.62em 3.24em;
  font: 1.2em/1.62 sans-serif;
}
h1, h2, h3 {
  line-height: 1.2;
}
@media print {
  body {
    max-width: none;
  }
}