body {
  font-family: system-ui, -apple-system, Roboto, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  body {
    background-color: black;
    color: white;
  }
  a {
    color: #89a6ff;
  }
  a:visited {
    color: #f690ff;
  }
}