soapbox/app/styles/components/tabs-bar.scss

.tabs-bar {
  display: flex;
  box-sizing: border-box;
  background: var(--brand-color);
  flex: 0 0 auto;
  overflow-y: auto;
  height: 50px;
  width: 100%;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: transform 0.2s ease;

  &--collapsed {
    @media screen and (max-width: 895px) {
      margin-top: -50px;
      transform: translateY(-50px);
    }
  }

  &__container {
    display: flex;
    box-sizing: border-box;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;

    // NOTE - might need to adjust this based on column sizing
    @media screen and (max-width: $nav-breakpoint-4) { padding: 0 10px; }
  }

  &__split {
    display: flex;
    width: auto;

    &--left {
      margin-right: auto;
    }

    &--right {
      margin-left: auto;
      align-items: center;
    }
  }

  &__search-container {
    display: block;
    width: 251px;

    @media screen and (max-width: 895px) {
      display: none;
    }
  }

  &__profile {
    position: relative;
    overflow: hidden;
    margin: 0 0 0 10px;
    height: 34px;
    width: 34px;

    .account__avatar {
      width: 34px;
      height: 34px;
      background-size: cover;
    }

    .compose__action-bar {
      display: block;
      position: absolute;
      top: 0;
      right: 0;
      left: -5px;
      bottom: 0;

      i {
        display: none;
      }

      @media screen and (max-width: 1190px) {
        display: none;
      }
    }
  }

  &__sidebar-btn {
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    width: 30px;
    opacity: 0;

    @media (min-width: 1191px) {
      display: none;
    }
  }

  &__page-name {
    display: block;
    margin-left: 18px;
    line-height: 30px;
    font-weight: 600;
    font-size: 18px;
    color: #fff;

    @media (min-width: 895px) {
      display: none;
    }
  }

  &__button-compose {
    display: block;
    @media screen and (max-width: $nav-breakpoint-3) { display: none; }
    height: 34px;
    margin-left: 20px;
    border-radius: 6px;
    background-color: var(--accent-color);
    font-weight: bold;
    font-size: 16px;
    transition: 0.2s;

    > span {
      text-shadow: 0 0 3px hsla(0, 0%, 0%, 0.15);
    }

    &:hover {
      background-color: var(--accent-color--bright);
    }
  }

  &__button {
    margin-left: 12px;
    height: 34px;
  }

  .theme-toggle {
    @media screen and (max-width: $nav-breakpoint-3) { display: none; }

    .setting-toggle {
      margin-left: 10px;

      .react-toggle-track {
        background-color: var(--foreground-color);
      }

      .react-toggle--checked {
        .react-toggle-track {
          background-color: var(--accent-color);
        }

        &:hover:not(.react-toggle--disabled) .react-toggle-track {
          background-color: var(--accent-color--bright);
        }
      }
    }
  }
}

.tabs-bar__link {
  display: flex;
  flex: 1 1 auto;
  margin: 0 20px 0 0;
  color: #fff;
  text-decoration: none;
  position: relative;
  align-items: center;
  padding-right: 4px;
  font-weight: bold;
  transition: 0.1s;
  outline: none;
  text-shadow: 0 0 3px hsla(0, 0%, 0%, 0.15);

  @media screen and (max-width: 895px) {
    width: 36px;
    margin: 4px 4px 0 0;
    justify-content: center;

    & > span { display: none; }
  }

  > span {
    font-size: 15px;
    line-height: 50px;
    margin-left: 4px;
  }

  &--search {
    @media (min-width: 895px) {
      display: none;
    }
  }

  i.fa {
    font-size: 14px;
    transform: translate(-1px, -1px);
    transition: 0.1s;

    @media screen and (max-width: 895px) {
      font-size: 20px;
    }

    &.fa-home {
      font-size: 18px;
      transform: translate(-1px, -2px);

      @media screen and (max-width: 895px) {
        font-size: 26px;
      }
    }
  }

  .icon-with-counter__counter {
    @media screen and (min-width: 895px) {
      left: 5px;
    }
  }

  &.optional {
    display: none;
    @media screen and (max-width: $nav-breakpoint-2) {
      display: flex;
      background-position: -992px 11px;
    }
  }

  &::before {
    content: "";
    display: block;
    background: var(--accent-color);
    position: absolute;
    transition: 0.2s;
    left: 0;
    bottom: auto;
    opacity: 0;
    height: 15px;
    border-radius: 999px;
    z-index: -1;
    width: calc(100% + 20px);
    margin-left: -12px;

    @media screen and (max-width: 895px) {
      height: 0;
      border-radius: 3px 3px 0 0;
      bottom: 0;
    }
  }

  &.active::before,
  &:hover::before {
    height: 30px;
    opacity: 1;

    @media screen and (max-width: 895px) {
      height: 7px;
      width: 36px;
      margin: 0;
    }
  }

  &--logo {
    display: block;
    margin-right: 30px;
    border: 0;
    height: 40px;
    overflow: hidden;
    padding: 13px 0 0;
    box-sizing: border-box;
    filter: brightness(0%) grayscale(100%) invert(100%);
    & span { display: none !important; }

    img {
      height: 100%;
    }

    &:hover {
      border: 0 !important;
    }
  }

  &--no-highlight,
  &--no-highlight:hover,
  &--no-highlight.active,
  &--no-highlight:active,
  &--no-highlight:focus {
    background: transparent !important;
    border-bottom-color: transparent !important;
  }
}

.tabs-bar__split--left:hover .tabs-bar__link {
  &::before {
    height: 15px;
    opacity: 0;

    @media screen and (max-width: 895px) {
      height: 0;
    }
  }

  &:hover::before {
    height: 30px;
    opacity: 1;

    @media screen and (max-width: 895px) {
      height: 7px;
    }
  }
}