.header-inner {
  gap: 20px;
}

.navigation {
  gap: 20px;
}

.site-header nav {
  gap: 0;
}

.header-search {
  width: 180px;
}

.nav-menu,
.nav-submenu {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-menu {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 16px;
}

.nav-menu > .nav-item {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-item > .nav-link {
  display: block;
  white-space: nowrap;
}

.nav-item--active > .nav-link,
.nav-item--ancestor > .nav-link {
  color: var(--accent-ink);
}

.nav-item--active > .nav-link::after,
.nav-item--ancestor > .nav-link::after {
  transform: scaleX(1);
}

.nav-submenu-toggle {
  display: inline-grid;
  flex: 0 0 44px;
  place-items: center;
  width: 44px;
  height: 44px;
  margin: 0 0 0 3px;
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--accent-ink);
  cursor: pointer;
}

.nav-submenu-toggle:hover,
.nav-submenu-toggle:focus-visible,
.nav-item.is-open > .nav-submenu-toggle {
  background: var(--soft);
  color: var(--ink);
}

.nav-submenu-toggle span {
  width: 7px;
  height: 7px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform .18s ease;
}

.nav-item.is-open > .nav-submenu-toggle span {
  transform: translateY(2px) rotate(225deg);
}

.nav-submenu {
  position: absolute;
  z-index: 50;
  top: calc(100% - 9px);
  left: 0;
  display: none;
  width: max-content;
  min-width: 184px;
  padding: 7px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
  background: #fff;
  box-shadow: 0 18px 38px rgba(23, 23, 23, .14);
}

.nav-submenu .nav-item {
  display: block;
}

.nav-submenu .nav-link {
  display: block;
  padding: 9px 12px;
  color: var(--ink);
  line-height: 1.5;
  white-space: nowrap;
}

.nav-submenu .nav-link::after {
  display: none;
}

.nav-submenu .nav-link:hover,
.nav-submenu .nav-link:focus-visible,
.nav-submenu .nav-item--active > .nav-link {
  background: var(--soft);
  color: var(--accent-ink);
}

.nav-menu > .nav-item:hover > .nav-submenu,
.nav-menu > .nav-item:focus-within > .nav-submenu,
.nav-menu > .nav-item.is-open > .nav-submenu {
  display: block;
}

@media (max-width: 1020px) {
  .brand {
    flex: 1 1 auto;
  }

  .brand-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .brand-logo,
  .brand > i,
  .nav-toggle {
    flex: 0 0 auto;
  }

  .header-search {
    width: 100%;
  }

  .nav-menu {
    align-items: stretch;
    flex-direction: column;
    gap: 0;
  }

  .nav-menu > .nav-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 42px;
  }

  .nav-item > .nav-link {
    grid-column: 1;
  }

  .nav-submenu-toggle {
    grid-column: 2;
    width: 42px;
    height: 42px;
    margin: 0;
  }

  .nav-submenu {
    position: static;
    display: none;
    grid-column: 1 / -1;
    width: auto;
    min-width: 0;
    padding: 0 0 5px 18px;
    border: 0;
    border-left: 1px solid var(--line);
    background: transparent;
    box-shadow: none;
  }

  .nav-menu > .nav-item:hover > .nav-submenu:not(:focus-within) {
    display: none;
  }

  .nav-menu > .nav-item.is-open > .nav-submenu {
    display: block !important;
  }

  .nav-menu > .nav-item:focus-within > .nav-submenu {
    display: block;
  }

  .nav-submenu .nav-link {
    padding: 9px 12px;
  }
}

.topic-nav-link[aria-current]::after {
  transform: scaleX(1);
}

@media (min-width: 1021px) {
  .site-header nav {
    column-gap: 16px;
  }
}