webapp/src/components/Feed/Sidebar/Sidebar.module.scss

.sidebar {
  margin-top: -0.7rem;
  max-height: calc(100vh - 120px);
  overflow: auto;
  top: 120px;

  @include media-breakpoint-up(md) {
    margin-top: 0;
    position: sticky;

    ul > li {
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
  }

  .sidebarItemName {
    background: transparent;
    align-items: center;
    display: flex;
    position: relative;
    transition: background-color 0.2s;
  }

  .sidebarItemNameLabel {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .userpic {
    margin-right: 1.2rem;
  }

  .selected {
    font-weight: 700;
  }

  .counter {
    @include font-size(1.2rem);

    align-items: center;
    align-self: flex-start;
    background: #f6f6f6;
    border-radius: 0.8rem;
    display: inline-flex;
    font-weight: bold;
    justify-content: center;
    min-width: 2em;
    margin-left: 0.5em;
    padding: 0.25em 0.5em 0.15em;
    transition: background-color 0.2s;
  }

  .unread {
    position: relative;

    &::after {
      background: #2638d9;
      border-radius: 100%;
      content: '';
      display: inline-block;
      height: 0.5em;
      left: 100%;
      margin-left: 0.3em;
      position: absolute;
      top: 0.5em;
      width: 0.5em;
    }
  }

  .settings {
    display: flex;
    justify-content: space-between;
    margin: 2em 0;

    @include media-breakpoint-down(md) {
      margin: 0;
      position: absolute;
      right: 12px;
    }

    @include media-breakpoint-down(sm) {
      right: 2px;
    }

    a {
      border: none;
    }
  }

  .settingsLabel {
    @include media-breakpoint-down(sm) {
      display: none;
    }
  }

  a {
    img {
      transition: filter 0.3s;
    }

    &:hover {
      .sidebarItemName,
      .counter {
        background: var(--background-color-invert);
      }

      img {
        filter: invert(1);
      }
    }
  }

  .icon {
    display: inline-block;
    line-height: 1;
    height: 2.4rem;
    margin-right: 0.8rem;
    min-width: 2.4rem;
    text-align: center;
    vertical-align: middle;

    img {
      height: 100%;
      object-fit: contain;
      object-position: center;
      width: 100%;
    }
  }

  h4 {
    @include font-size(1.2rem);

    font-weight: bold;
    color: #9fa1a7;
    cursor: pointer;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    position: relative;

    .icon {
      margin: 0;
      min-width: 1.8rem;
      position: absolute;
      right: 1.7rem;
      top: 50%;
      transform: translateY(-50%) rotate(180deg);
      transform-origin: center;
      transition: transform 0.3s;
      width: 1.8rem;
    }

    &.opened {
      .icon {
        right: 0;
        transform: translateY(-50%);
      }
    }
  }

  .hidden {
    display: none;
  }
}

.feedFilters,
.subscriptions {
  @include media-breakpoint-down(md) {
    display: flex;
    overflow: auto;

    li {
      margin-right: 3rem !important;

      &:last-child {
        margin-right: 0 !important;
      }
    }

    &::-webkit-scrollbar {
      height: 0;
      width: 0;
    }

    &::-webkit-scrollbar-thumb {
      background: none;
    }
  }
}

.feedFilters {
  @include media-breakpoint-down(md) {
    margin-bottom: 0 !important;
  }

  .sidebarItemName {
    align-items: center;
  }
}

.subscriptions {
  .icon {
    text-align: center;

    img {
      display: inline-block;
      vertical-align: middle;
    }
  }
}