.tui-aside-navigation {
  background: $color-blue-200;
  border-bottom: 1px solid $color-blue-200;
  border-radius: $border-radius-normal;
  -ms-grid-column: 1;
  -ms-grid-column-span: 2;
  -ms-grid-row: 1;
  -ms-grid-row-align: start;
  grid-column: 1 / span 2;
  grid-row: 1 / span 2;
  align-self: start;
  margin-bottom: $margin-normal;
  width: 100%;

  h2 {
    display: none;
    padding: $margin-normal $margin-double;
    margin: 0;
  }

  .navigation-hamburger {
    @include font-size(20);
    display: block;
    text-align: center;
    color: $link-color;
    padding: $margin-double;
    margin-bottom: 0;
    font-weight: bold;
    text-transform: uppercase;
  }

  ul {
    margin: 0 $margin-normal;
    border-radius: $border-radius-normal;
    background: $color-blue-100;
    overflow: hidden;
    display: none;

    > li {
      position: relative;

      > a {
        padding-right: $margin-quadruple;
        /* stylelint-disable max-nesting-depth */
        &.active {
          background: $color-white;
        }
        /* stylelint-enable */
      }

      > label {
        width: $margin-quadruple;
        height: 100%;
        position: absolute;
        right: 0;
        top: 0;
        cursor: cell;
      }

      @supports (display: grid) {
        display: grid;
        grid-template-columns: 1fr auto;
        /* stylelint-disable max-nesting-depth */
        > a {
          padding: $margin-normal;
          overflow: hidden;
        }

        > label {
          width: auto;
          height: auto;
          position: static;
        }
        /* stylelint-enable */
      }

      border-bottom: 1px solid $color-blue-200;

      &:last-child {
        border: 0;
      }

      li {
        border: 0;
      }
    }

    a {
      @include font-size(18);
      padding: $margin-normal;
      font-weight: bold;
      transition: all .2s;
      display: block;

      &:hover {
        text-decoration: none;
      }
    }

    label {
      padding: $margin-normal;
      text-align: center;
      background: $color-blue-100;
      margin: 0;
      border-left: 1px solid $color-blue-200;
      transition: all .2s;

      .pictogram {
        vertical-align: -.34em;
      }
    }

    ul {
      display: none;
      grid-column: 1 / -1;
      border: 0;
      border-radius: 0;
      margin: 0;
      background: $color-white;

      label {
        background: $color-white;
        border: 0;
      }

      a {
        @include font-size(16);
      }

      ul {
        margin-left: $margin-double;
      }
    }

    :checked {
      ~ a,
      ~ label {
        background: $color-white;
        color: $color-blue-500;
        border-left: 1px solid $color-white;
      }
    }

    .active {
      color: $color-blue-500;
    }
  }

  [type='checkbox'] {
    display: none;

    &:not(:checked) {
      ~ a {
        background: $color-blue-100;
      }
    }

    ~ ul ul {
      :not(:checked) {
        /* stylelint-disable max-nesting-depth */
        ~ a {
          background: $color-white;
        }
        /* stylelint-enable */
      }
    }
  }

  @include breakpoint(md) {
    ul {
      margin: 0 $margin-normal $margin-normal;
    }

    .navigation-hamburger {
      display: none;
    }

    > ul,
    > h2 {
      display: block;
    }
  }

  .top-node {
    &:checked {
      ~ ul {
        margin: 0 $margin-normal $margin-normal;
      }
    }
  }
}