/* Header & Navigation — shared across all page types */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: background 0.3s;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.375rem;
  font-weight: 600;
  color: #2D2D2D;
  text-decoration: none;
  transition: color 0.2s;
}

.site-logo:hover { color: #7BA69E; }

.site-nav {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 400;
  color: #2D2D2D;
  text-decoration: none;
  position: relative;
  transition: color 0.2s;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #7BA69E;
  transition: width 0.3s;
}

.nav-link:hover { color: #7BA69E; }
.nav-link:hover::after { width: 100%; }

/* Nav dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 0.9375rem;
  font-weight: 400;
  color: #2D2D2D;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}

.dropdown-arrow {
  transition: transform 0.2s;
}

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

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  background: rgba(250, 250, 248, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  padding: 0.5rem 0;
  min-width: 180px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}

.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: block;
  padding: 0.5rem 1.25rem;
  font-size: 0.9375rem;
  color: #2D2D2D;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.dropdown-item:hover {
  background: rgba(123, 166, 158, 0.08);
  color: #7BA69E;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #2D2D2D;
  border-radius: 2px;
  transition: all 0.3s;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    background: rgba(250, 250, 248, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s;
  }

  .site-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-dropdown-menu {
    position: static;
    transform: none;
    background: none;
    backdrop-filter: none;
    border: none;
    border-radius: 0;
    box-shadow: none;
    padding: 0 0 0 1rem;
    min-width: 0;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    pointer-events: none;
    transition: opacity 0.2s, max-height 0.3s;
  }

  .nav-dropdown.open .nav-dropdown-menu {
    opacity: 1;
    max-height: 200px;
    pointer-events: all;
    transform: none;
  }

  .dropdown-item {
    padding: 0.375rem 0;
  }

  .dropdown-item:hover {
    background: none;
  }
}