@media (prefers-color-scheme: dark) {
  body { background: #333; color: #eee }

  a:link { color:9090ff; background-color:transparent; text-decoration:none; }
  a:visited { color:e090e0; background-color:transparent; text-decoration:none; }
  a:hover { color:e0e090; background-color:transparent; text-decoration:none; }
  a:active { color:e0e090; background-color:transparent; text-decoration:underline; }
}