.navigation {
  top: 0; left: 0;

  background-color: $white;
  box-shadow: 0 1px 5px rgba($black, 0.1);
  position: fixed;
  width: 100%;
  z-index: 10;

  > div:first-of-type {
    align-items: stretch;
    display: flex;
    flex-flow: row wrap;
  }
}

.navigation__item {
  color: inherit;
  font-size: 1rem;
  line-height: 4rem;
  overflow: hidden;
  padding-right: 0.5rem;
  padding-left: 0.5rem;
  position: relative;

  &:first-of-type {
    flex: 1;
  }

  &:not(:first-of-type) {
    &::after {
      width: 100%; height: 3px;

      background-color: $teal;
      content: "";
      left: 0;
      position: absolute;
      transition: bottom 0.2s;
    }

    &:not(:hover) {
      &::after {
        bottom: -3px;
      }
    }

    &:hover,
    &.router-link-active {
      &::after {
        bottom: 0;
      }
    }
  }
}