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

#container nav ul.site-nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0;
}

#container nav ul.site-nav > li {
  position: relative;
  margin-left: 0;
  padding: 0 0.7rem;
}

.site-nav > li:not(:first-child) {
  border-left: 1px solid #cecece;
}

.site-nav > li > a {
  display: inline-block;
  padding: 0.05rem 0;
}

.site-nav .has-children > a {
  padding-right: 1.05em;
  position: relative;
}

.site-nav a span {
  white-space: nowrap;
}

.site-nav .has-children > a::after {
  content: "v";
  position: absolute;
  right: 0.15em;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.75em;
  transition: transform 120ms ease;
}

#container nav li.has-children.is-open > a::after {
  transform: translateY(-50%) rotate(180deg);
}

/* Base dropdown visuals (also used by the JS "portal" layer). */
ul.nav-dropdown {
  margin: 0;
  padding: 0.35rem 0;
  list-style: none;
  display: none;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid #d8d8d8;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
  z-index: 20;
}

/* Nav-positioned dropdown (desktop hover). */
#container nav ul.nav-dropdown {
  position: absolute;
  left: 0;
  top: 100%;
  min-width: 12rem;
  /* Override theme's `#container nav ul { display: flex; }`. */
  display: none;
}

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

ul.nav-dropdown a {
  display: block;
  padding: 0.35rem 0.8rem;
  text-decoration: none;
  white-space: nowrap;
}

ul.nav-dropdown a:hover,
ul.nav-dropdown a:focus-visible {
  background: #f4f6f8;
}

#container nav li.has-children:hover > ul.nav-dropdown,
#container nav li.has-children:focus-within > ul.nav-dropdown {
  display: block;
}

/* Tap-to-toggle mode: keep dropdown as overlay; use .is-open instead of hover. */
@media (hover: none), (pointer: coarse) {
  #container nav ul.site-nav {
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    overflow-y: visible;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  #container nav ul.site-nav::-webkit-scrollbar {
    display: none;
  }

  #container nav ul.site-nav > li {
    flex: 0 0 auto;
  }

  #container nav li.has-children:hover > ul.nav-dropdown,
  #container nav li.has-children:focus-within > ul.nav-dropdown {
    display: none;
  }

  /* .is-open handled by JS in touch mode (dropdown is portalled). */
}

@media only screen and (max-width: 520px) {
  #container nav ul.site-nav {
    justify-content: flex-start;
  }

  #container nav ul.site-nav > li {
    padding: 0 0.55rem;
  }
}

@media (prefers-color-scheme: dark) {
  .site-nav > li:not(:first-child) {
    border-left-color: #6a6a6a;
  }

  ul.nav-dropdown {
    background: #2f2d2e;
    border-color: #3b3a3a;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4);
  }

  ul.nav-dropdown a:hover,
  ul.nav-dropdown a:focus-visible {
    background: #383637;
  }
}

/* JS portal layer for touch-mode dropdowns (avoids overflow clipping). */
.nav-dropdown-layer {
  position: fixed;
  inset: 0;
  z-index: 10000;
  pointer-events: none;
}

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

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