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

  blockquote {
    color: #ddd;
  }

  h1, h2, h3, h4, h5, h6 {
    color: #ddd;
  }

  strong {
    color: #fff;
  }

  .sidebar-toggle {
    color: #fff;
    background-color: #333;
  }

  .sidebar-toggle::before {
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='%23fff' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill-rule='evenodd' d='M2.5 11.5A.5.5 0 013 11h10a.5.5 0 010 1H3a.5.5 0 01-.5-.5zm0-4A.5.5 0 013 7h10a.5.5 0 010 1H3a.5.5 0 01-.5-.5zm0-4A.5.5 0 013 3h10a.5.5 0 010 1H3a.5.5 0 01-.5-.5z' clip-rule='evenodd'/%3E%3C/svg%3E") no-repeat;
  }

  .sidebar-toggle:active,
  #sidebar-checkbox:focus ~ .sidebar-toggle,
  #sidebar-checkbox:checked ~ .sidebar-toggle {
    color: #fff;
    background-color: #333;
  }

  .page-title,
  .post-title,
  .post-title a {
    color: #fff;
  }
}