.tui-sub-navigation-container {
  padding: $margin-double;
  background-color: $color-blue-100;
  margin: 0 0 $margin-double;

  @supports (display: grid) {
    border-top: $margin-half solid $color-blue-300;
    border-radius: $border-radius-normal;
    padding: $margin-normal;

    @include breakpoint(sm) {
      padding: $margin-enterprise;
    }

    @include breakpoint(md) {
      padding: $margin-double;
      border-top: 0;
    }
  }
}

.tui-sub-navigation {
  @extend %flexbox-row;
  flex-wrap: wrap;
  margin: 0;
  overflow: hidden;

  li {
    width: 50%;
    padding: $margin-half $margin-normal;
    border-bottom: 1px solid $color-blue-300;

    &:nth-child(2n-1) {
      border-right: 1px solid $color-blue-300;
      padding-left: 0;

      &:nth-last-child(-n+2) {
        border-bottom: 0;
      }
    }

    &:nth-child(2n) {
      padding-right: 0;

      &:nth-last-child(1) {
        border-bottom: 0;
      }
    }

    @include breakpoint(sm) {
      width: 20%;

      &:nth-child(n) {
        padding: $margin-enterprise $margin-double;
        border-right: 1px solid $color-blue-300;
        /* stylelint-disable max-nesting-depth */
        &:nth-child(n) {
          border-bottom: 1px solid $color-blue-300;
        }
        /* stylelint-enable */
      }

      &:nth-child(5n) {
        border-right: 0;
        padding-right: 0;
      }

      &:nth-child(5n+1) {
        padding-left: 0;
      }

      &:nth-child(5n+1):nth-last-child(-n+5),
      &:nth-child(5n+1):nth-last-child(-n+5) ~ li {
        border-bottom: 0;
      }
    }

    @include breakpoint(md) {
      width: auto;

      &:nth-child(n) {
        padding: 0 $margin-normal;
        border: 0;
        flex-grow: 1;
        /* stylelint-disable max-nesting-depth */
        &:nth-child(n) {
          border-bottom: 0;
        }
        /* stylelint-enable */
      }
    }
  }

  a {
    @include font-size(16);
    font-weight: bold;
    color: $color-blue-500;

    &.active,
    &:active,
    &:hover {
      color: $color-link-blue;
      text-decoration: none;
    }

    @include breakpoint(md) {
      @include font-size(18);

      &.active,
      &:active,
      &:hover {
        border-bottom: $margin-half solid $color-blue-300;
        padding-bottom: 20px;
      }
    }
  }
}

// a/b-test
.tui-subnav-wrapper {
  @extend .tui-container;
}

.subnav-start,
.subnav-end,
.subnav-heading {
  display: none;
}

.variation-b {
  &.tui-subnav-wrapper {
    background: $color-blue-100;
    order: 0;
    position: relative;
    margin: 0;
    padding: 0;
    z-index: 5;
    justify-content: space-between;

    @include breakpoint(sm) {
      background: transparent;
      margin: 0 auto;
      width: $container-sm;
    }

    @include breakpoint(md) {
      margin: -#{$margin-double} auto 0;
      width: $container-md;
    }

    @include breakpoint(lg) {
      width: $container-lg;
    }
  }

  .tui-sub-navigation-container {
    justify-content: space-between;
    background: $color-link-blue;
    order: -1;
    border: 0;
    border-radius: 0;
    margin: 0;
    padding: 0;
    position: static;
    z-index: 11;

    @include breakpoint(sm) {
      border-radius: $border-radius-normal;
      margin: $margin-half 0;
      max-width: 100%;
    }

    @include breakpoint(md) {
      border-radius: $border-radius-normal;
      margin: 0;
      order: 0;
      max-width: 100%;
      overflow: hidden;
    }

    &.tui-section.tui-container {
      padding: 0;
      max-width: 100%;
      z-index: 11;

      @include breakpoint(sm) {
        margin: $margin-half;
      }

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

    &.sticked {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;

      .sub-navigation {
        @extend .tui-container;
      }
    }

    .subnav-heading {
      @extend %flexbox-row;
      @include font-size(18);
      font-weight: bold;
      text-transform: uppercase;
      text-shadow: none;
      border-radius: $border-radius-input;
      min-height: $margin-quadruple;
      justify-content: space-between;
      align-items: center;
      text-align: center;
      letter-spacing: .025em;
      padding: $margin-normal;
      margin: 0;
      color: $color-white;
      cursor: pointer;

      .text {
        flex-grow: 1;
        text-align: center;
      }

      @include breakpoint(md) {
        display: none;
      }
    }
  }

  .subnav-start,
  .subnav-end {
    height: $margin-quintuple;
    width: $margin-quintuple + $margin-triple;
    background: rgba($color-white, .2);
    position: absolute;
    top: 0;
    color: $color-blue-500;
    z-index: 12;
    display: none;
    justify-content: center;
    align-items: center;
    cursor: pointer;

    &.active {
      @include breakpoint(md) {
        display: flex;
      }
    }
  }

  .subnav-start {
    display: none;
    left: 0;
    background: linear-gradient(to left, rgba($color-blue-300, 0) 0%, $color-blue-300 70%);
    padding-right: $margin-triple;
  }

  .subnav-end {
    display: none;
    right: 0;
    background: linear-gradient(to right, rgba($color-blue-300, 0) 0%, $color-blue-300 70%);
    padding-left: $margin-triple;
  }

  .tui-sub-navigation {
    @extend %flexbox-row;
    background: $color-link-blue;
    padding: 0 $margin-half $margin-half;
    margin: 0;
    border: 0;
    color: $color-white;
    overflow: hidden;
    transition: height .3s ease, left .3s ease;
    top: calc(#{$margin-quintuple} - #{$margin-half});

    @include breakpoint(md) {
      display: flex;
      flex-wrap: nowrap;
      align-content: center;
      justify-content: space-between;
      padding: $margin-half;
      height: auto;
      box-shadow: none;
      overflow: visible;
      left: 0;
      right: auto;
      top: auto;
    }

    > li {
      display: block;
      flex-basis: auto;
      width: 50%;
      align-content: baseline;
      flex-grow: 0;
      flex-shrink: 0;
      padding: 0;

      &:nth-child(n) {
        border: 0;
      }

      @media only screen and (min-width: $screen-sm-min / 3 * 2) {
        width: percentage(1/3);
      }

      @include breakpoint(sm) {
        width: 25%;
      }

      @include breakpoint(md) {
        width: auto;
        flex-shrink: 1;
      }
    }

    a {
      @include font-size(16);
      display: block;
      font-weight: bold;
      color: $color-white;
      line-height: $margin-double;
      padding: $margin-normal;
      min-width: 0;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      border: 0;

      &.active {
        border: 0;
      }

      @include breakpoint(md) {
        @include font-size(18);
        padding: $margin-normal $margin-half;
        margin: 0;
        width: auto;
      }

      @include breakpoint(lg) {
        padding: $margin-normal;
      }

      &:hover {
        background: $color-blue-500;
        border-radius: $border-radius-normal;
      }
    }

    .pictogram {
      vertical-align: -.35em;
      margin-right: $margin-half;

      @include breakpoint(sm) {
        display: none;
      }
    }

    @for $i from 1 through 15 {
      &.subnav-list-length-#{$i} {
        height: $margin-quadruple * $i;
      }
    }
  }
}