/* ==========================================================================
   Accessible Paris — Header & Navigation
   ========================================================================== */

/* ── Accessibility Toolbar ── */
.a11y-toolbar {
  position: fixed;
  top: 0;
  right: 0;
  z-index: var(--z-toolbar);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  background: var(--color-navy-dark);
  border-radius: 0 0 0 var(--radius-md);
  box-shadow: var(--shadow-md);
}

.a11y-toolbar button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-height: 36px;
  min-width: 36px;
  padding: 0;
  background: transparent;
  color: var(--color-cream);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--text-sm);
}

.a11y-toolbar button:hover,
.a11y-toolbar button[aria-pressed="true"] {
  background: var(--color-gold);
  color: var(--color-navy-dark);
  border-color: var(--color-gold);
}

.a11y-toolbar button:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.a11y-toolbar-label {
  color: var(--color-cream);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-right: var(--space-2);
}

.a11y-toolbar-divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.2);
  margin: 0 var(--space-1);
}

/* ── Site Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-stone);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ── Logo ── */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-navy);
  border-radius: var(--radius-md);
  color: var(--color-gold);
}

.logo-icon svg {
  width: 28px;
  height: 28px;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.2;
  letter-spacing: var(--tracking-tight);
}

.logo-subtitle {
  font-size: var(--text-xs);
  color: var(--color-gold-dark);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
}

/* ── Main Navigation ── */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
  margin: 0;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-navy);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 44px;
}

.nav-link:hover,
.nav-link[aria-expanded="true"] {
  background: var(--color-cream);
  color: var(--color-gold-dark);
}

.nav-link[aria-current="page"] {
  color: var(--color-gold-dark);
  background: rgba(201, 169, 110, 0.1);
}

.nav-link .chevron {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
}

.nav-link[aria-expanded="true"] .chevron {
  transform: rotate(180deg);
}

/* ── Mega Menu ── */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 500px;
  padding: var(--space-6);
  background: var(--color-white);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  z-index: var(--z-dropdown);
}

.nav-item:hover .mega-menu,
.nav-item:focus-within .mega-menu,
.mega-menu:hover {
  opacity: 1;
  visibility: visible;
}

.mega-menu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}

.mega-menu-link {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition-fast);
  min-height: 44px;
}

.mega-menu-link:hover {
  background: var(--color-cream);
}

.mega-menu-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-cream);
  border-radius: var(--radius-md);
  color: var(--color-gold-dark);
  font-size: var(--text-lg);
}

.mega-menu-content {
  display: flex;
  flex-direction: column;
}

.mega-menu-title {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-navy);
  line-height: 1.3;
}

.mega-menu-desc {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  line-height: 1.4;
  margin: 0;
}

/* ── Header Actions ── */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}


/* ── Mobile Menu Button ── */
.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: 2px solid var(--color-stone);
  border-radius: var(--radius-md);
  color: var(--color-navy);
  cursor: pointer;
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
  }

  .main-nav.is-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    padding: var(--space-6);
    overflow-y: auto;
    z-index: calc(var(--z-sticky) - 1);
    border-top: 1px solid var(--color-stone);
  }

  .main-nav.is-open .nav-list {
    flex-direction: column;
    width: 100%;
    gap: var(--space-2);
  }

  .main-nav.is-open .nav-item {
    width: 100%;
  }

  .main-nav.is-open .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-md);
  }

  .main-nav.is-open .mega-menu {
    position: static;
    transform: none;
    min-width: auto;
    border: none;
    box-shadow: none;
    padding: var(--space-2) var(--space-4);
    background: var(--color-cream);
    border-radius: var(--radius-md);
    display: none;
  }

  .main-nav.is-open .mega-menu.is-open {
    display: block;
    opacity: 1;
    visibility: visible;
  }

  .main-nav.is-open .mega-menu-grid {
    grid-template-columns: 1fr;
  }

  .mobile-menu-btn {
    display: flex;
  }


  .a11y-toolbar {
    position: static;
    border-radius: 0;
    justify-content: center;
    background: var(--color-navy);
  }
}

@media (max-width: 640px) {
  .logo-title {
    font-size: var(--text-md);
  }

  .logo-subtitle {
    display: none;
  }
}