discourse/app/assets/stylesheets/common/base/new-user.scss

.new-user-wrapper {
  margin-top: -15px; // temp, can remove margin from sibling element after nav finalized
  .user-navigation {
    --user-navigation__border-width: 4px;
    &.user-navigation-primary {
      border-bottom: 1px solid var(--primary-low);
    }
    .nav-pills {
      width: 100%;
      margin: 0;
      .d-icon {
        font-size: var(--font-down-1);
      }

      &.main-nav {
        @include breakpoint(medium) {
          li {
            .d-icon {
              font-size: var(--font-up-1);
              margin: 0;
            }
            span {
              display: none;
            }
          }
        }

        .has-sidebar-page & {
          @include breakpoint(large) {
            span {
              display: none;
            }
          }
        }
      }

      li {
        flex: 1 1 auto;
        margin: 0;
        overflow: hidden;
        display: flex;

        a {
          box-sizing: border-box;
          width: 100%;
          display: flex;
          justify-content: center;
          align-items: center;
          position: relative;
          border-bottom: var(--user-navigation__border-width) solid transparent;
          padding: calc(0.75em + var(--user-navigation__border-width)) 0.5em
            0.75em;
          transition: color 0.25s;

          @include breakpoint(extra-large) {
            font-size: var(--font-0);
          }

          span {
            line-height: normal;
            @include ellipsis;
          }

          &:hover,
          &:focus {
            background: transparent;
            color: var(--quaternary);
            border-bottom: var(--user-navigation__border-width) solid
              var(--quaternary-low);
          }

          &.active {
            color: var(--quaternary);
            background: transparent;
            border-bottom: var(--user-navigation__border-width) solid
              var(--quaternary);
          }
        }
      }
    }
  }

  .user-navigation-secondary {
    --user-navigation__border-width: 2px;
    position: relative;
    display: flex;
    min-width: 0;
    margin: 0.5em 0;
    gap: 0 0.5em;
    border-bottom: 1px solid var(--primary-low);

    .horizontal-overflow-nav {
      position: relative;
      min-width: 0;
      width: 100%;
    }

    .select-kit .select-kit-header {
      height: 100%;
      padding: 0.5em 1em;
    }

    .category-breadcrumb {
      @include breakpoint(large) {
        font-size: var(--font-down-1);
      }
      > li {
        margin: 0;
      }
    }

    .navigation-controls {
      flex-wrap: nowrap;
      @include breakpoint(large) {
        font-size: var(--font-down-1);
      }
    }

    .nav-overflow__scroll-right,
    .nav-overflow__scroll-left {
      --fade-width: 20px;
      opacity: 1;
      position: absolute;
      z-index: 2;
      background-color: var(--secondary);
      top: 0;
      bottom: 0;
      display: flex;
      align-items: center;
      transition: opacity 0.25s;
      .d-icon {
        pointer-events: none;
        margin-bottom: 0.2em;
        color: var(--quaternary);
      }
      &.transparent {
        // hiding with opacity so we can transition visibility
        opacity: 0;
        pointer-events: none;
      }
    }

    .nav-overflow__scroll-right {
      right: 0;
      &:before {
        content: "";
        margin-left: -1.5em;
        height: 100%;
        width: 1.5em;
        background: linear-gradient(
          to left,
          rgba(var(--secondary-rgb), 1),
          rgba(var(--secondary-rgb), 0)
        );
      }
    }

    .nav-overflow__scroll-left {
      left: 0;
      &:after {
        content: "";
        margin-right: -1.5em;
        height: 100%;
        width: 1.5em;
        background: linear-gradient(
          to right,
          rgba(var(--secondary-rgb), 1),
          rgba(var(--secondary-rgb), 0)
        );
      }
    }

    .nav-pills {
      flex: 1 1 auto;
      font-size: var(--font-down-1);
      justify-content: flex-start;
      overflow: auto;
      position: relative;
      scroll-behavior: smooth;

      // hides scrollbars, but allows mouse scrolling
      scrollbar-width: none;
      &::-webkit-scrollbar {
        height: 0;
      }

      li {
        flex: 1 0 auto;

        a {
          padding: 0.5em 0.5em
            calc(0.5em + var(--user-navigation__border-width));

          span {
            text-overflow: unset;
          }
        }
      }
    }
  }

  .user-nav-dropdown-button {
    background: transparent;
  }

  .user-nav-dropdown-submenu {
    background: var(--secondary);
    list-style-type: none;
    margin: 0;

    li a {
      padding: 0.5em 1em;
      color: var(--primary);

      .discourse-no-touch & {
        &:hover {
          background: var(--highlight-medium);
          color: currentColor;
        }
      }

      &.active {
        background: var(--tertiary-low);
        color: currentColor;
      }

      &:first-of-type {
        padding-top: 0.5em;
      }
      &:last-of-type {
        padding-bottom: 0.5em;
      }
    }
  }

  .empty-state {
    padding: 0;
    margin: 1em 0;
  }
}