$mainFont: 'Open Sans', sans-serif;
$secondaryFont: 'Teko', sans-serif;
$specialFont: 'Josefin Sans', sans-serif;
$monoFont: 'Share Tech Mono', monospace;
$primaryColor: aliceblue;
$secondaryColor: skyblue;
$linkColor: deeppink;
$bgColor: #222;
$fgColor: ivory;
$darkColor: gray;
$contentWidth: 600px;
$themeColor: #ffc100;
$tertiaryColor: #2cdd88;

html {
  --specialFont: #{$specialFont};
  --mainFont: #{$mainFont};
  --secondaryFont: #{$secondaryFont};
  --monoFont: #{$monoFont};
  --primaryColor: #{$primaryColor};
  --secondaryColor: #{$secondaryColor};
  --linkColor: #{$linkColor};
  --bgColor: #{$bgColor};
  --fgColor: #{$fgColor};
  --darkColor: #{$darkColor};
  --contentWidth: #{$contentWidth};
  --themeColor: #{$themeColor};
  --tertiaryColor: #{$tertiaryColor};
}

body {
  font-family: $mainFont;
  font-size: 17px;
  line-height: 1.6;
  background-color: $bgColor;
  color: $fgColor;
  &::-webkit-scrollbar {
    width: 6px;
    height: 6px;
  }
  &::-webkit-scrollbar-thumb {
    background-color: rgba(0,0,0,0.5);
    border-radius: 6px;
  }
  &::-webkit-scrollbar-corner {
    background-color: transparent;
  }
}

hr {
  width: 300px;
  margin-bottom: 20px;
  margin-top: 40px;
  border-color: $bgColor;
}

a {
  color: $linkColor;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: $secondaryFont;
  font-weight: normal;
  color: $secondaryColor;
  line-height: 1;
}

h1 { font-size: 2.5em }
h2 { font-size: 2em }
h3 { font-size: 1.7em }
h4 { font-size: 1.4em }
h5 { font-size: 1.2em }
h6 { font-size: 1em }

.special {
  font-family: $specialFont;
  text-align: center;
  color: $primaryColor;
  margin: 10px 0 5px 0;
}

code, pre {
  font-family: $specialFont;
}

code {
  white-space: pre-wrap;
  color: $primaryColor;
}

pre {
  background: linear-gradient(rgba(0,0,0,0.05),rgba(0,0,0,0.05));
  padding: 10px;
  code {
    color: inherit;
  }
}

sub, sup {
  font-size: small;
}
sup {
  vertical-align: 6px;
}
sub {
  vertical-align: 0px;
}

.md-18 { font-size: 18px; }
.md-24 { font-size: 24px; }
.md-36 { font-size: 36px; }
.md-48 { font-size: 48px; }
.md-disabled { color: rgba(0,0,0,0.1); }

.buttons {
  margin-bottom: 1em;
  a {
    text-decoration: none;
    color: yellowgreen;
  }
}

@mixin margin-top() {
  margin-top: 100px;
}

@mixin align-middle() {
  display: flex;
  align-items: center;
  text-decoration: none;
  text-align: center;
  img {
    margin-right: 5px;
  }
}
@mixin align-center() {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-direction: column;
}

.middle-align {
  @include align-middle();
}

.center-align {
  @include align-center();
}

.spacer {
  margin-top: 100px;
}

footer {
  @include margin-top();
  @include align-center();
  color: $darkColor;
  font-size: 14px;
  ul {
    padding: 0;
    display: flex;
    li {
      @include align-middle();
      margin: 0 5px;
      a {
        color: $darkColor;
      }
    }
  }
}

article {
  &.center {
    @include align-center();
  }
  &.center img {
    border-radius: 50%;
    object-fit: cover;
  }
  &.left img {
    float: left;
    object-fit: cover;
    margin: 5px 10px 0 0;
    display: inline-block;
  }
}

article.tiles {
  ul {
    list-style-type: none;
    padding-inline-start: unset;
    display: grid;
    grid-gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    li {
      padding: 10px;
      margin: 5px;
      border-radius: 5px;
      text-align: center;
      background-color: $secondaryColor;
      a {
        color: $bgColor;
      }
      sup {
        vertical-align: 3px;
      }
    }
  }
}