/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */

/* ── Header Shell ── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  transition: background var(--t-base), box-shadow var(--t-base), padding var(--t-base);
  padding-block: 14px;
}

/* Transparent over hero */
.header--transparent {
  background: transparent;
}

/* Scrolled state */
.header--scrolled {
  background: var(--royal-blue);
  box-shadow: 0 2px 20px rgba(7,59,102,.18);
  padding-block: 8px;
}

/* Shrink logo slightly when scrolled */
.header--scrolled .header__logo-img {
  height: 56px;
}

/* On non-hero pages, always solid */
.header--solid {
  background: var(--royal-blue);
  box-shadow: 0 2px 20px rgba(7,59,102,.15);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: flex-end; /* Push items right since logo is absolute */
  gap: var(--s4);
}

/* ── Logo (Hanging Style) ── */
.header__logo {
  position: absolute;
  top: 0;
  left: max(20px, 3vw); /* Pushes it closer to viewport edge */
  background-color: #fff;
  padding: 16px 24px 20px;
  border-radius: 0 0 32px 32px;
  box-shadow: 0 16px 40px rgba(10, 10, 112, 0.15), inset 0 -4px 0 var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--t-base), padding var(--t-base), box-shadow var(--t-base);
  z-index: 10;
}
.header__logo:hover {
  transform: translateY(6px);
  box-shadow: 0 20px 48px rgba(10, 10, 112, 0.2), inset 0 -2px 0 var(--gold);
}
.header--scrolled .header__logo {
  padding: 12px 16px 14px;
  border-radius: 0 0 24px 24px;
}
.header__logo-img {
  height: 170px;
  width: auto;
  object-fit: contain;
  transition: height var(--t-base);
  display: block;
}
.header--scrolled .header__logo-img {
  height: 90px;
}

/* ── Desktop Nav ── */
.header__nav {
  display: flex;
  align-items: center;
  gap: var(--s2);
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.header__nav-item { position: relative; }

.header__nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  font: 500 var(--text-sm)/1 var(--font-body);
  color: rgba(255,255,255,.85);
  border-radius: var(--r-sm);
  transition: color var(--t-fast), background var(--t-fast);
  white-space: nowrap;
}
.header__nav-link:hover,
.header__nav-link--active {
  color: var(--white);
  background: rgba(255,255,255,.1);
}
.header__nav-link--active {
  color: var(--gold-light);
}

/* Dropdown chevron */
.header__nav-link .chevron {
  width: 14px;
  height: 14px;
  transition: transform var(--t-fast);
}
.header__nav-item--has-dropdown:hover .chevron { transform: rotate(180deg); }

/* ── Mega Dropdown ── */
.header__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  padding: var(--s3);
  min-width: 640px;
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: var(--s2);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-base), visibility var(--t-base), transform var(--t-base);
  transform: translateX(-50%) translateY(-8px);
  border: 1px solid var(--border);
}

.header__nav-item--has-dropdown:hover .header__dropdown,
.header__nav-item--has-dropdown:focus-within .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.header__dropdown-item {
  display: flex;
  align-items: flex-start;
  gap: var(--s1);
  padding: 12px;
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: background var(--t-fast);
}
.header__dropdown-item:hover { background: var(--ivory); }

.header__dropdown-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.header__dropdown-text { flex: 1; }
.header__dropdown-name {
  font: 600 var(--text-sm)/1.2 var(--font-body);
  color: var(--charcoal);
  margin-bottom: 3px;
}
.header__dropdown-desc {
  font: 400 var(--text-xs)/1.4 var(--font-body);
  color: var(--muted);
}

/* Dropdown footer row */
.header__dropdown-footer {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border);
  padding-top: var(--s2);
  display: flex;
  justify-content: flex-end;
}
.header__dropdown-all {
  font: 600 var(--text-xs)/1 var(--font-body);
  color: var(--heritage-blue);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.header__dropdown-all:hover { color: var(--gold); }

/* ── Header Actions ── */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--s1);
  flex-shrink: 0;
}

.header__btn {
  padding: 10px 20px;
  font: 600 var(--text-xs)/1 var(--font-body);
  border-radius: var(--r-sm);
  min-height: 40px;
  transition: background var(--t-base), color var(--t-base), border-color var(--t-base);
  white-space: nowrap;
}
.header__btn--outline {
  color: rgba(255,255,255,.85);
  border: 1.5px solid rgba(255,255,255,.35);
  background: transparent;
}
.header__btn--outline:hover {
  color: var(--white);
  border-color: var(--white);
}
.header__btn--donate {
  background: var(--gold);
  color: var(--royal-blue);
  border: none;
}
.header__btn--donate:hover {
  background: var(--gold-light);
  box-shadow: var(--shadow-sm);
}

/* ── Mobile Toggle ── */
.header__menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--r-sm);
  border: 1.5px solid rgba(255,255,255,.3);
  color: var(--white);
  transition: border-color var(--t-fast), background var(--t-fast);
}
.header__menu-btn:hover {
  border-color: var(--gold);
  background: rgba(255,255,255,.08);
}
.header__menu-btn svg { width: 22px; height: 22px; }

/* ============================================================
   MOBILE NAV PANEL
   ============================================================ */

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-nav) + 1);
  visibility: hidden;
  pointer-events: none;
}
.mobile-nav.is-open {
  visibility: visible;
  pointer-events: auto;
}

/* Overlay */
.mobile-nav__overlay {
  position: absolute;
  inset: 0;
  background: rgba(7,59,102,.6);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--t-slow);
}
.mobile-nav.is-open .mobile-nav__overlay { opacity: 1; }

/* Panel */
.mobile-nav__panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(340px, 90vw);
  background: var(--royal-blue);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--t-slow);
  display: flex;
  flex-direction: column;
}
.mobile-nav.is-open .mobile-nav__panel { transform: none; }

.mobile-nav__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--s3);
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.mobile-nav__logo-img {
  height: 90px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  background-color: #fff;
  border-radius: var(--r-md);
  padding: 8px;
}
.mobile-nav__close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-sm);
  border: 1.5px solid rgba(255,255,255,.2);
  color: var(--white);
  transition: border-color var(--t-fast);
}
.mobile-nav__close:hover { border-color: var(--gold); color: var(--gold); }
.mobile-nav__close svg { width: 20px; height: 20px; }

.mobile-nav__body { flex: 1; padding: var(--s2) 0; }

.mobile-nav__link {
  display: block;
  padding: 14px var(--s3);
  font: 500 var(--text-base)/1 var(--font-body);
  color: rgba(255,255,255,.85);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: color var(--t-fast), background var(--t-fast);
}
.mobile-nav__link:hover { color: var(--gold); background: rgba(255,255,255,.05); }

/* Accordion programs */
.mobile-nav__accordion-toggle {
  width: 100%;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px var(--s3);
  font: 500 var(--text-base)/1 var(--font-body);
  color: rgba(255,255,255,.85);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: color var(--t-fast);
}
.mobile-nav__accordion-toggle:hover { color: var(--gold); }
.mobile-nav__accordion-toggle .chevron {
  width: 16px; height: 16px;
  transition: transform var(--t-base);
}
.mobile-nav__accordion-toggle[aria-expanded="true"] .chevron { transform: rotate(180deg); }

.mobile-nav__accordion-body {
  background: rgba(0,0,0,.15);
  display: none;
}
.mobile-nav__accordion-body.is-open { display: block; }

.mobile-nav__sub-link {
  display: block;
  padding: 11px var(--s3) 11px 48px;
  font: 400 var(--text-sm)/1.3 var(--font-body);
  color: rgba(255,255,255,.65);
  border-bottom: 1px solid rgba(255,255,255,.04);
  transition: color var(--t-fast);
}
.mobile-nav__sub-link:hover { color: var(--gold-light); }

.mobile-nav__foot {
  padding: var(--s3);
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  flex-direction: column;
  gap: var(--s1);
}
.mobile-nav__foot .btn { justify-content: center; }

/* ── Responsive: Show/hide ── */
@media (max-width: 1024px) {
  .header__nav,
  .header__actions { display: none; }
  .header__menu-btn { display: flex; }
}
@media (min-width: 1025px) {
  .mobile-nav { display: none !important; }
}