// Table of contents

nav#table-of-contents {
  background-color: $code-background;
  border-radius: 5px;
  @include light-para(13px);
  margin: 20px 0;
  padding: 20px;
  padding-left: 50px;
  line-height: 1.6 !important;

  #text-table-of-contents {
    background-color: $code-background;
  }

  h2 {
    @include light-meta();
    margin-top: 10px;
  }
}

@media (min-width: 1280px) {
  nav#table-of-contents {
    z-index: 9999;
    // FIXME Chrome seems to treat this as position: absolute
    position: fixed;
    top: 200px;
    left: 50px;
    background-color: transparent;
    max-width: 50vw;
    padding: 0;

    #text-table-of-contents {
      background-color: $back-white;
      box-shadow: 0 0 2px;
      padding: 20px;
      display: none;
      max-height: 50vh;
      overflow: auto;

      ul {
        margin: 0;
      }
    }

    &:hover {
      #text-table-of-contents {
        display: block;
      }
      h2 {
        display: none;
      }
    }

    h2 {
      transform: rotate(-90deg);
      position: relative;
      top: 50px;
    }

    li::before {
      content: "";
    }
  }
}

//
// Fancy toc
//

::-webkit-scrollbar { width: 10px; height: 8px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:transparent; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background:transparent; }

@media (min-width: 1280px) {
  #table-of-contents {
    position: fixed;
    right: 4rem;
    top: 0;
    padding: 1em;
    width: 15rem;
    line-height: 1.5;
    margin-top: 4rem;
    h2 {
      margin-top: 0;
    }
    > div > ul {
      list-style: none;
      padding: 0;
      margin: 0;
      max-height: calc(100vh - 5rem - 40px);
      overflow-y: auto;
      overflow-x: visible;
      scrollbar-color: transparent transparent;
      scrollbar-width: thin;
      ul {
        padding-left: 2em;
      }
      > li {
        display: block;
      }
    }
    ul.active > li {
      display: block;
    }
    li {
      display: none;
      a {
        display: inline-block;
        color: $text-light;
        text-decoration: none;
        -webkit-transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
        transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
        // negating earlir styles
        text-shadow: none;
        background: none;
      }
    }
    li:hover, li:hover > ul > li {
      display: block !important;
      a {
        color: $text-gray;
      }
    }
    li.active > a {
      color: $text-dark;
    }
    li::before {
      content: "";
    }
  }
}

@media (min-width: 1640px) {
  #table-of-contents {
    right: 10rem;
  }
}