gcg-website/assets/scss/templates/_navigation.scss

.top-header {
  font-size: 12px;
  transition: transform .2s ease;
  transform-origin: top;
  font-weight: 600;

  &.hide {
    transform: scaleY(0);
    transform-origin: top;
  }
}

.navigation {
  background: linear-gradient(to right, transparent 50%, $primary-color 50%);
  transition: .2s ease;

  @include desktop {
    background: $secondary-color;
  }
}

.navbar-collapse{
  @include desktop {
    background: $secondary-color;
  }
}

.navbar-nav {
  padding-left: 50px;
  background: $primary-color;

  @include desktop {
    padding-left: 0;
    background: $secondary-color;
  }
}

.nav-bg {
  background-color: $secondary-color;
}

.nav-item {
  .nav-link {
    text-transform: uppercase;
    font-weight: 600;
  }

  margin: 0 15px;
  position: relative;

  &::before {
    position: absolute;
    left: 0;
    bottom: 0;
    height: 6px;
    width: 100%;
    content: "";
    background: $white;
    transform: scaleY(0);
    transform-origin: top;
    transition: transform .3s ease;
  }

  &:hover,
  &.active {
    &::before {
      transform: scaleY(1);
      transform-origin: bottom;
    }
  }
}

.navbar-dark .navbar-nav .nav-link {
  color: $white;
}

link:focus,
.navbar-dark .navbar-nav .nav-link:hover {
  color: $white;
}

.navbar-dark .navbar-nav .active>.nav-link,
.navbar-dark .navbar-nav .nav-link.active,
.navbar-dark .navbar-nav .nav-link.show,
.navbar-dark .navbar-nav .show>.nav-link {
  color: $white;
}

.navbar-expand-lg .navbar-nav .nav-link {
  padding: 40px 0px;

  @include desktop {
    padding: 20px;
  }
}

.sticky {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 10;
  background: $white;
  box-shadow: 0 2px 5px #0000000d;
}

.navbar {
  .dropdown {
    &:hover {
      .dropdown-menu {
        visibility: visible;
        opacity: 1;
        transform: translateY(0)
      }
    }

    &-menu {
      box-shadow: 0px 3px 9px 0px rgba(0, 0, 0, 0.12);
      border-bottom: 5px solid $primary-color;
      padding: 15px;
      top: 96px;
      border-radius: 0;
      display: block;
      visibility: hidden;
      transition: .3s ease;
      opacity: 0;
      transform: translateY(20px);
      background: $white;

      @include desktop {
        display: none;
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        transform-origin: unset;
      }

      &.show {
        visibility: hidden;

        @include desktop {
          visibility: visible;
          display: block;
        }
      }
    }

    &-item {
      position: relative;
      color: $text-color-dark;
      transition: .2s ease;
      text-transform: capitalize;
      font-family: $primary-font;

      @include desktop {
        text-align: center;
      }

      &:not(:last-child) {
        margin-bottom: 10px;
      }

      &:hover {
        color: $primary-color;
        background: transparent;
      }
    }
  }
}