::selection {
  background: #fff909;
  color: #151515;
}

:root {
  background-color: indigo;
  background-image: radial-gradient(indigo, darkslategray);
  color: lemonchiffon;
}

:any-link {
  color: #09ff09;
}

@media (prefers-contrast: less) {
  :any-link {
    color: #fff909;
  }
}

@media (prefers-contrast: more) {
  :root {
    background-image: radial-gradient(midnightblue, indigo);
  }
}