/* ---------- nav dropdowns (Industries, Resources) ----------
   Loaded on every page after styles.css. Desktop: opens on hover, keyboard focus,
   or the arrow button. Mobile menu (860px and below): the arrow expands the list in place. */

.nav-cats > a[aria-current="page"],
.nav-dd-link[aria-current] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--red); }

.nav-dd { position: relative; display: flex; align-items: center; }
.nav-dd-btn {
  background: none; border: none; padding: 0; margin-left: 2px;
  width: 28px; min-height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--body); cursor: pointer;
}
.nav-dd-btn:hover { color: var(--ink); }
.nav-dd-btn svg { transition: transform 140ms ease; }
.nav-dd.open .nav-dd-btn svg { transform: rotate(180deg); }

.nav-dd-panel { display: none; position: absolute; top: 100%; left: -14px; z-index: 60; padding-top: 6px; }
.nav-dd.open .nav-dd-panel { display: block; }

.nav-dd-menu {
  width: 320px; max-width: calc(100vw - 40px); box-sizing: border-box;
  background: #ffffff; border: 1px solid var(--line); border-radius: 14px;
  box-shadow: 0 18px 40px -20px rgba(20, 20, 23, 0.35);
  padding: 8px; display: flex; flex-direction: column; gap: 2px;
}
.nav-links .nav-dd-menu a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; min-height: 44px; box-sizing: border-box;
  border-radius: 10px; text-decoration: none; color: var(--ink);
}
.nav-links .nav-dd-menu a:hover { background: var(--paper); }
.nav-dd-dot { width: 6px; height: 6px; border-radius: 999px; flex: none; }
.nav-links .nav-dd-menu a[aria-current="page"] { background: #f4f3ef; box-shadow: none; }
.nav-dd-menu a[aria-current="page"] .nav-dd-dot { background: var(--red); }
.nav-dd-text { display: flex; flex-direction: column; line-height: 1.35; }
.nav-dd-title { font-size: 15px; font-weight: 600; color: var(--ink); }
.nav-dd-desc { font-size: 13px; font-weight: 400; color: #6b6b72; }
.nav-links .nav-dd-menu a.nav-dd-all {
  justify-content: space-between; margin-top: 4px;
  padding: 10px 12px 6px 30px; min-height: 40px;
  border-top: 1px solid #efede9; border-radius: 0;
  font-size: 14px; font-weight: 600; color: var(--red-deep);
}
.nav-links .nav-dd-menu a.nav-dd-all:hover { background: none; color: var(--ink); }

/* Desktop: the arrow's spare button width no longer adds to the gap after Industries and
   Resources, so every top item sits the same distance apart (the .nav-cats gap). */
@media (min-width: 861px) {
  .nav-dd-btn { width: 24px; margin-left: 0; margin-right: -9px; }
}

@media (hover: hover) and (min-width: 861px) {
  .nav-dd:hover .nav-dd-panel,
  .nav-dd:focus-within .nav-dd-panel { display: block; }
  .nav-dd:hover .nav-dd-btn svg { transform: rotate(180deg); }
}

@media (max-width: 860px) {
  .nav-dd { flex-wrap: wrap; align-items: stretch; }
  .nav-dd-link { flex: 1 1 auto; }
  .nav-cats > a[aria-current="page"], .nav-dd-link[aria-current] { box-shadow: inset 3px 0 0 var(--red); }
  .nav-dd-btn { width: 56px; margin-left: 0; border-bottom: 1px solid var(--line); }
  .nav-dd-panel { position: static; flex-basis: 100%; padding: 0; }
  .nav-dd-menu {
    width: auto; max-width: none; border: none; border-radius: 0; box-shadow: none;
    background: var(--paper); padding: 4px 0 8px; border-bottom: 1px solid var(--line);
  }
  .nav-links .nav-dd-menu a {
    padding: 10px clamp(1.25rem, 4vw, 2.5rem); border-bottom: none; border-radius: 0; font-size: 1rem;
  }
  .nav-links .nav-dd-menu a.nav-dd-all { padding: 10px clamp(1.25rem, 4vw, 2.5rem); border-top: none; }
}