#container nav {
  position: relative;
  z-index: 100;
}

#container nav ul.site-nav {
  align-items: flex-start;
}

#container nav ul.site-nav > li {
  position: relative;
  align-self: flex-start;
}

#container nav ul.site-nav > li.has-children::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 0.35rem;
}

.site-nav .has-children > details {
  position: relative;
}

.site-nav .has-children > details > summary {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  list-style: none;
  cursor: pointer;
}

.site-nav .has-children > details > summary::-webkit-details-marker {
  display: none;
}

.site-nav .has-children > details > summary:focus {
  outline: none;
}

.site-nav .has-children > details > summary::after {
  content: "▾";
  position: static;
  font-size: 0.7em;
  line-height: 1;
}

#container nav li.has-children > details[open] > summary::after {
  content: "▴";
}

ul.nav-dropdown {
  margin: 0;
  padding: 0.55rem 0;
  list-style: none;
  display: none;
  flex-direction: column;
  background: var(--theme-surface);
  border: 1px solid var(--theme-border);
  z-index: 20;
  position: absolute;
  left: 0;
  top: calc(100% + 0.45rem);
  min-width: 13rem;
  width: max-content;
}

ul.nav-dropdown li {
  margin: 0;
}

ul.nav-dropdown a {
  display: block;
  padding: 0.48rem 1rem;
  line-height: 1.6;
  white-space: nowrap;
}

ul.nav-dropdown a:hover,
ul.nav-dropdown a:focus-visible {
  text-decoration: underline;
}

#container nav li.has-children > details[open] > ul.nav-dropdown {
  display: flex;
}

.nav-dropdown-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  z-index: 10000;
  pointer-events: none;
}

.nav-dropdown-layer > ul.nav-dropdown,
.nav-dropdown-layer > .nav-search-panel {
  pointer-events: auto;
}