:root {
    --accent: #226997;
    --main: #111111;
    /*--main2: #575757;*/
    /*--main3: #7d7d7d;*/
    --background: #ffffff;
    /*--background2: #f7f7f7;*/
}

body {
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    font-family: Arial, sans-serif;
    color: var(--main);
    background-color: var(--background);
}

body img {
    max-width: 640px;
}

a {
    color: var(--main);
    text-decoration: underline var(--accent) 2.5px;
    transition: text-decoration .12s ease;
}

a:hover, a:focus {
    text-decoration: none;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #226997;
    --main: #eeeeee;
    /*--main2: #cecece;*/
    /*--main3: #b1b1b1;*/
    --background: #111111;
    /*--background2: #575656;*/
  }

  img {
    opacity: .75;
    transition: opacity .5s ease-in-out;
  }
  img:hover {
    opacity: 1;
  }

  #manage ul ul li img {
    opacity: 1;
    filter: invert(1);
  }
}