*, :before, :after {
    box-sizing: border-box;
    border-width: 0;
    border-style: solid;
}

body {
  max-width: 768px;
  margin: 0 auto;
}
@media (prefers-color-scheme: dark) {
  body {
    background: #121212;
    color: #fff;
  }
  a {
    color: #9da2ff;
  }
  a:visited {
    color: #d7aefb;
  }
  a:active {
    filter: brightness(0.9);
  }
}