$nav-panel-xs-height: 300px;
$nav-panel-sm-height: 300px;
$nav-panel-md-height: 300px;
$nav-panel-lg-height: 400px;

.nav {
  display: inline-block;
  height: 100%;

  overflow: hidden;
}

.nav-list {
  display: flex;
  align-items: stretch;
  justify-content: flex-end;

  height: 100%;

  padding: 0;
  margin: 0;

  list-style-type: none;
}

.nav-item {
  height: 100%;
  margin: 0;
  margin-right: 15px;
  margin-left: 15px;
  padding: 0;
}

.nav-link {
  @extend .typo-navigation;

  display: flex;
  align-items: center;
  justify-content: center;

  height: 100%;
  padding-right: 1.25rem;
  padding-left: 1.25rem;

  transition: color $transition-normal $transition-ease;

  color: $color-axa-blue;
  text-align: center;
  text-decoration: none;

  .header.transparent & {
    color: $color-white;
  }

  &.is-active,
  &:hover,
  &:focus,
  &:active {
    color: $color-axa-blue;

    text-decoration: none;
    cursor: pointer;

    .header.transparent & {
      color: $color-white;
    }
  }
}

.nav-panel {
  position: absolute;
  top: 100%;
  left: 0;

  width: 100%;
  height: 0;

  transition: height $transition-normal $transition-easeout $transition-delay-slow, visibility 0s linear ($transition-delay-slow + $transition-normal);

  background: $color-wild-sand;
  overflow: hidden;
  visibility: hidden;

  .nav-item:hover &,
  &.is-open {
    transition: height $transition-normal $transition-easein, visibility 0s linear;
    visibility: visible;
  }

  .nav-item:hover &,
  &.is-open,
  .nav-list:hover &,
  .nav-list.is-open & {
    height: $nav-panel-xs-height;

    @include media-breakpoint-up(sm) {
      height: $nav-panel-sm-height;
    }

    @include media-breakpoint-up(md) {
      height: $nav-panel-md-height;
    }

    @include media-breakpoint-up(lg) {
      height: $nav-panel-lg-height;
    }
  }
}

.nav-panel-wrapper {
  padding-top: 3.75rem;

  transition: opacity $transition-normal linear ($transition-delay-slow + $transition-normal);
  opacity: 0;

  .nav-item:hover &,
  &.is-open {
    transition: opacity $transition-normal linear $transition-delay-slow;
    opacity: 1;
  }
}

.nav-stroke {
  position: absolute;
  bottom: -2px;
  left: 0;

  width: 7.5rem;
  height: 0;

  transform: translate(0, 0);
  transform: translate3d(0, 0, 0);
  transition: height $transition-fast $transition-ease, width $transition-fast $transition-ease, transform $transition-fast $transition-ease, opacity 0s linear $transition-fast;

  background: $color-burnt-sienna;
  opacity: 0;

  &.is-visible {
    height: 3px;
    transition: height $transition-fast $transition-ease, width $transition-normal $transition-ease, transform $transition-normal $transition-ease, opacity 0s linear;

    opacity: 1;
  }
}