c3ioc-hugo/static/css/style.scss

@use 'partials/_css-notice';
@use 'partials/_font-faces';
@use 'partials/_font-code';

$bg_light: #efefef;
$bg_light_2: #e2e2e2;
$color_light: #333333;
$a_light: #763bff;
$a_hover_light: #5f0096;
$secondary_light: #c31fba;
$tertiary_light: #6600ea;
$light_h2: #bf1eb7;
$menu_hover_light: #5b00d2;

$bg_dark: #040012;
$gb_dark_2: black;
$color_dark: #ccc;
$a_dark: #2ea0ff;
$a_hover_dark: #b162f4;
$dark_h2: #e20cef;
$menu_hover_dark: #8432ee;
$tertiary_dark: #6600ea;

body {
  font-size: 13pt;
  line-height: 1.5em;
  margin: 0 auto;
  background: $bg_light;
  color: $color_light;
}

:root {
  color-scheme: light dark;
}

a {
  text-decoration: none;
  color: $a_light;
}
a:hover,
a:focus {
  color: $a_hover_light;
}

header {
  position: relative;
  padding: 1.5em 1em;
}

main { /* wraps the German and English version*/
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
}
main > * {
  margin: 0 1em;
  flex-basis: 25rem;
  flex-grow: 1;
}

h1 {
  display: inline-block;
  background: linear-gradient(to right, $secondary_light, $tertiary_light);
  padding: 0.4em;
  border-top-left-radius: 0.75em;
  border-bottom-right-radius: 0.75em;
  color: white;
  line-height: 1em;
}
h2 {
  color: $light_h2;
}
ul {
  background: $bg_light_2;
  border-width: 3px 0 0 0;
  border-style: solid;
  -o-border-image: linear-gradient(to right, $secondary_light, $tertiary_light) 100% 1;
  border-image: linear-gradient(to right, $secondary_light, $tertiary_light) 100% 1;
}

footer {
  background-color: $bg_light_2;
  text-align: center;
  padding: 1em;
}
.lang {
  font-size: 1.2em;
}
.skiplink {
  position: absolute;
  bottom: -2em;
  right: 1em;
}
/* Utility classes */
.display-none {
  display: none;
}
.js {
  display: none;
}

/* Choosing fonts via JS */
#accessibility-options {
  button {
    position: absolute;
    top: 0;
    right: 0;
    font-size: inherit;
    color: $bg_light;
    background-color: $tertiary_light;
    border: 0;
    border-bottom-left-radius: 1em;
    font-weight: bold;
    margin: 0;
    padding: 0.4em 0.6em;
  }
  button:hover {
    background-color: $menu_hover_light;
    cursor: pointer;
  }
  button:focus {
    outline: none;
  }
}
#font-selection {
  color: $color_light;
  background: $bg_light;
  border-radius: 15px;
  border: 1px solid $tertiary_light;
  ul {
    -moz-columns: 3 150pt;
    columns: 3 150pt;
    margin: 0;
    padding: 0;
    border: 0;
    background: $bg_light;
  }
  li {
    min-width: 13em;
    list-style: none;
    line-height: 0;
    height: 22pt;
    display: block;
  }
  legend {
    width: auto;
    color: inherit;
    padding: 0.2rem 0.7rem;
    background-color: inherit;
    border: 1px solid $tertiary_light;
    border-radius: 15px;
  }
  label:hover {
    cursor: pointer;
  }
  input[type="radio"] {
    margin-right: 5pt;
  }
}

/* Choosing fonts via CSS (no-JS fallback)*/
#toggle:checked ~ .fontchange {
  font-family: OpenDyslexicThree-Regular;
  .lang {
    font-family: OpenDyslexicThree-Bold;
  }
  h2 {
    font-family: OpenDyslexicThree-Bold;
  }
}

/* Media queries */
@media only screen and (min-width: 50em) {
  body {
    max-width: 900pt;
  }
  main > * {
    flex-basis: 20rem;
  }
  header {
    background-size: 100%;
  }
  .skiplink {
    position: absolute;
    top: -9999px;
    left: -9999px;
    width: 0;
    height: 0;
    font-size: 0;
    line-height: 0;
  }

  #accessibility-options {
    position: absolute;
    top: 0;
    right: 0;
    font-size: inherit;
    color: $bg_light;
    background-color: $tertiary_light;
    border: 0;
    border-bottom-left-radius: 1.5em;
    font-weight: bold;
    padding: 0 0 0 0.5em;
  }
  #font-selection {
    margin: auto;
    color: $bg_light;
    background-color: $tertiary_light;

    legend {
      border: 0;
      padding-top: 2em;
      padding-left: 0;
      margin-left: 0;
    }
    ul {
      -moz-columns: 1;
      columns: 1;
      color: $bg_light;
      background-color: $tertiary_light;
      margin: 0;
    }
    li:hover {
      background-color: $menu_hover_light;
    }
  }
}

@media (prefers-color-scheme: dark) {
  body {
    background: $bg_dark;
    color: $color_dark;
  }
  a {
    text-decoration: none;
    color: $a_dark;
  }
  a:hover,
  a:focus {
    color: $a_hover_dark;
  }
  h1 {
    color: $gb_dark_2;
  }
  h2 {
    color: $dark_h2;
  }
  ul {
    background: $gb_dark_2;
  }
  #accessibility-options button {
    color: $gb_dark_2;
  }
  #accessibility-options button:hover {
    background-color: $menu_hover_dark;
  }
  #font-selection {
    color: $color_dark;
    background: $bg_dark;

    ul {
      background: $bg_dark;
    }
    legend {
      border: 1px solid $tertiary_dark;
    }
  }
  footer {
    background: $gb_dark_2;
  }
}

@media (prefers-color-scheme: dark) and (min-width: 50em) {
  #font-selection {
    color: $gb_dark_2;
    background: $tertiary_dark;
    ul {
      color: $gb_dark_2;
      background: $tertiary_dark;
    }
    li:hover {
      background-color: $menu_hover_dark;
    }
  }
}