/* ==========================================================================
   NAVIGATION — desktop dropdown + mobile drawer with nested submenu
   Loaded after components.css; overrides the earlier mega-menu styles.
   ========================================================================== */

/* --------------------------------------------------------------------------
   DESKTOP: About Us dropdown
   -------------------------------------------------------------------------- */
.nav__item--has-sub { display: flex; align-items: center; }

/* Caret sits beside the link so the label itself stays a real navigable link. */
.nav__caret {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  margin-left: -6px;
  padding: 0;
  background: none;
  border: none;
  border-radius: var(--r-sm);
  color: var(--text);
  font-size: 0.8rem;
  cursor: pointer;
  transition: transform var(--dur-base) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out);
}
.nav__caret:hover { color: var(--accent); background: var(--bg-subtle); }

.nav__item--has-sub:hover .nav__caret,
.nav__caret[aria-expanded="true"] { transform: rotate(180deg); color: var(--accent); }

.nav__item--has-sub:hover > .nav__link,
.nav__item--has-sub:focus-within > .nav__link { color: var(--accent); }

.submenu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  z-index: var(--z-header);
  width: min(92vw, 380px);
  margin: 0;
  padding: var(--sp-3);
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--sh-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out),
              visibility var(--dur-base);
}

/* A small bridge stops the menu closing as the pointer crosses the gap. */
.submenu::before {
  content: "";
  position: absolute;
  inset: -12px 0 auto 0;
  height: 12px;
}

.nav__item--has-sub:hover > .submenu,
.nav__item--has-sub:focus-within > .submenu,
.submenu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.submenu__link {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
  padding: var(--sp-3);
  border-radius: var(--r-md);
  color: var(--text);
  transition: background-color var(--dur-fast) var(--ease-out);
}
.submenu__link:hover { background: var(--bg-subtle); color: var(--text); }
.submenu__link[aria-current="page"] { background: var(--accent-soft); }
.submenu__link[aria-current="page"] .submenu__title { color: var(--accent); }

.submenu__icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: var(--r-md);
  background: var(--accent-soft);
  color: var(--gold-600);
  font-size: 1.15rem;
}
.submenu__title { display: block; font-weight: 600; font-size: var(--fs-sm); }
.submenu__desc {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 1px;
}

/* --------------------------------------------------------------------------
   MOBILE DRAWER: nested accordion
   -------------------------------------------------------------------------- */
.drawer__group { border-bottom: 1px solid var(--border); }

.drawer__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
}
.drawer__link--flush {
  flex: 1;
  border-bottom: 0;
}

.drawer__expand {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  color: var(--text);
  font-size: 1rem;
  cursor: pointer;
  transition: transform var(--dur-base) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}
.drawer__expand:hover { border-color: var(--accent); color: var(--accent); }
.drawer__expand[aria-expanded="true"] {
  transform: rotate(180deg);
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}

/* Animates to auto height without hardcoding a max. The 0fr/1fr trick
   only collapses the tracks it actually defines, so every row must be
   covered — with one track per <li> the extra rows fell through to
   grid-auto-rows:auto and kept ~109px of dead space while collapsed. */
.drawer__sub {
  display: grid;
  grid-template-rows: 0fr;
  grid-auto-rows: 0fr;
  margin: 0;
  padding: 0;
  list-style: none;
  transition: grid-template-rows var(--dur-slow) var(--ease-out),
              grid-auto-rows var(--dur-slow) var(--ease-out);
}
.drawer__sub.is-open {
  grid-template-rows: 1fr;
  grid-auto-rows: 1fr;
}

/* Padding must sit on the anchor, not the li. The li is a grid item, so
   its padding is outside the collapsing 0fr track and would survive as
   dead space between "About Us" and the next link while collapsed. */
.drawer__sub > li { overflow: hidden; }
.drawer__sub li:first-child a { margin-top: var(--sp-1); }
.drawer__sub li:last-child a { margin-bottom: var(--sp-4); }

.drawer__sub a {
  display: block;
  padding: var(--sp-3) var(--sp-3) var(--sp-3) var(--sp-8);
  font-size: var(--fs-sm);
  color: var(--text-body);
  border-radius: var(--r-sm);
  position: relative;
}
.drawer__sub a::before {
  content: "";
  position: absolute;
  left: var(--sp-4);
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--border-strong);
}
.drawer__sub a:hover { color: var(--accent); background: var(--bg-subtle); }
.drawer__sub a[aria-current="page"] { color: var(--accent); font-weight: 600; }

/* Whole sub-list is hidden from AT and tab order while collapsed. */
.drawer__sub:not(.is-open) a { visibility: hidden; }
.drawer__sub.is-open a { visibility: visible; }

/* --------------------------------------------------------------------------
   Breakpoint switch
   -------------------------------------------------------------------------- */
@media (max-width: 1023px) {
  .nav,
  .header__actions .header__cta { display: none; }
  .burger { display: grid; }
}

@media (min-width: 1024px) {
  .drawer, .overlay { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  .submenu, .drawer, .drawer__sub, .nav__caret, .drawer__expand {
    transition-duration: 0.01ms !important;
  }
}