/* ============================================================
   nav.css — Navigation, mega menu, mobile nav drawer
   opleidingindezorg.nl
   WORDPRESS TEMPLATE: header.php / nav.php
   ============================================================ */

/* ---------- Site header (sticky) ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: var(--white);
  border-bottom: 1px solid var(--rule);
  transition: box-shadow var(--duration) var(--ease-smooth);
}
.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
}

/* ---------- Nav bar ---------- */
.nav { width: 100%; }
.nav__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: var(--nav-h-mobile);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  transition: height var(--duration) var(--ease-smooth);
}
.site-header.is-scrolled .nav__inner { height: 64px; }

/* ---------- Logo ---------- */
.nav__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.nav__logo svg,
.nav__logo img { height: 44px; width: auto; display: block; }

/* ---------- Desktop nav list ---------- */
.nav__list {
  display: none;
  list-style: none;
  gap: 4px;
  margin-left: 8px;
}
.nav__item { position: relative; }
.nav__trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--charcoal);
  transition: color var(--duration) var(--ease-smooth),
              background var(--duration) var(--ease-smooth);
}
.nav__trigger:hover { color: var(--teal-dark); background: var(--teal-bg); }
.nav__trigger .chevron {
  width: 14px; height: 14px;
  transition: transform var(--duration) var(--ease-smooth);
}
.nav__trigger[aria-expanded="true"] { color: var(--teal-dark); background: var(--teal-bg); }
.nav__trigger[aria-expanded="true"] .chevron { transform: rotate(180deg); }

/* Active section (current page is a child of this item) */
.nav__item.is-active .nav__trigger {
  color: var(--teal-dark);
}
.nav__item.is-active .nav__trigger::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  background: var(--teal);
  border-radius: 2px;
}

/* Standalone nav link (no mega) */
.nav__link {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--charcoal);
}
.nav__link:hover { color: var(--teal-dark); background: var(--teal-bg); }

/* ---------- Nav CTA's ---------- */
.nav__ctas {
  display: none;
  margin-left: auto;
  gap: 10px;
}

/* ---------- Hamburger (mobile) ---------- */
.nav__hamburger {
  margin-left: auto;
  width: 44px; height: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
}
.nav__hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--charcoal);
  border-radius: 2px;
  transition: transform var(--duration) var(--ease-smooth),
              opacity var(--duration) var(--ease-smooth);
}
.nav__hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Mega menu ---------- */
.mega {
  position: absolute;
  left: 0; right: 0;
  top: 100%;
  background: var(--white);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-mega);
  display: none;
}
.mega.is-open {
  display: block;
  animation: mega-in var(--duration) var(--ease-smooth);
}
.mega__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding: var(--space-lg) var(--gutter);
  display: grid;
  grid-template-columns: 1.1fr 1.1fr 1.3fr;
  gap: var(--space-lg);
}
.mega__col { min-width: 0; }
.mega__eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}
.mega__links { list-style: none; display: grid; gap: 2px; }
.mega__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  margin-inline: -10px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--charcoal);
  transition: background var(--duration) var(--ease-smooth),
              color var(--duration) var(--ease-smooth);
}
.mega__link:hover { background: var(--teal-bg); color: var(--teal-dark); }
.mega__link svg { width: 15px; height: 15px; opacity: .55; }
.mega__link--featured {
  font-weight: 600;
  color: var(--teal-dark);
  background: var(--teal-bg);
}

/* Featured panel (column 3) */
.mega__col--featured {
  background: linear-gradient(150deg, var(--teal) 0%, var(--teal-dark) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-md);
}
.mega__featured-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.82;
  margin-bottom: 10px;
}
.mega__featured-title {
  font-family: var(--serif);
  font-size: 26px;
  line-height: 1.15;
  margin-bottom: 10px;
}
.mega__featured-body {
  font-size: 14px;
  line-height: 1.55;
  opacity: 0.9;
  margin-bottom: 18px;
}
.mega__featured-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.mega__col--featured .btn--primary {
  background: #fff;
  border-color: #fff;
  color: var(--teal-dark);
  box-shadow: none;
}
.mega__col--featured .btn--primary:hover { background: var(--warm); border-color: var(--warm); }
.mega__col--featured .btn--outline {
  border-color: rgba(255,255,255,.5);
  color: #fff;
}
.mega__col--featured .btn--outline:hover { border-color: #fff; background: rgba(255,255,255,.1); }

/* ---------- Overlay behind mega menu ---------- */
.mega-overlay {
  position: fixed;
  inset: 0;
  top: var(--nav-h-desktop);
  background: rgba(28, 43, 58, 0.32);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration) var(--ease-smooth),
              visibility var(--duration) var(--ease-smooth);
  z-index: var(--z-overlay);
}
.mega-overlay.is-open { opacity: 1; visibility: visible; }

/* ---------- Mobile nav drawer ---------- */
.mobile-nav {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(360px, 86vw);
  background: var(--white);
  z-index: var(--z-mobile-nav);
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-smooth);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow-y: auto;
}
.mobile-nav.is-open { transform: translateX(0); }
.mobile-nav__inner {
  padding: calc(var(--nav-h-mobile) + 16px) var(--space-md) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}
.mobile-nav__item {
  padding: 15px 14px;
  border-radius: var(--radius-sm);
  font-size: 17px;
  font-weight: 600;
  color: var(--charcoal);
  border-bottom: 1px solid var(--rule);
}
.mobile-nav__item:last-of-type { border-bottom: none; }
.mobile-nav__item.is-active { color: var(--teal-dark); }
.mobile-nav__item:hover { background: var(--teal-bg); }
.mobile-nav__footer {
  padding: var(--space-md);
  border-top: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--warm);
}
.mobile-nav__footer .btn { width: 100%; }

/* Backdrop behind mobile nav */
.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(28, 43, 58, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration) var(--ease-smooth),
              visibility var(--duration) var(--ease-smooth);
  z-index: var(--z-mobile-overlay);
}
.mobile-nav-backdrop.is-open { opacity: 1; visibility: visible; }

body.nav-locked { overflow: hidden; }

/* ---------- Tablet: mega menu becomes a dropdown ---------- */
@media (min-width: 768px) and (max-width: 1023px) {
  .mega { left: auto; right: auto; }
  .mega__inner { grid-template-columns: 1fr 1fr; max-width: 720px; }
  .mega__col--featured { grid-column: 1 / -1; }
}

/* ---------- Desktop: show full nav ---------- */
@media (min-width: 1024px) {
  .nav__inner { height: var(--nav-h-desktop); }
  .nav__list { display: flex; }
  .nav__ctas { display: flex; }
  .nav__hamburger { display: none; }
  .mobile-nav { display: none; }
}