/* ==========================================================================
   Navigatie — Hoofdmenu, mobiel menu, actieve pagina
   ========================================================================== */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* --- Logo --- */
.site-nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--color-primary);
}

.site-nav__logo:hover {
  color: var(--color-primary-light);
}

.site-nav__logo img {
  box-sizing: border-box;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0.125rem;
  background-color: #ffffff;
  border-radius: var(--radius-sm);
  object-fit: contain;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.95), 0 0 14px rgba(255, 255, 255, 0.65);
}

.site-nav__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-nav__logo-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: inherit;
}

.site-nav__logo-subtitle {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
}

@media (max-width: 480px) {
  .site-nav__logo-subtitle {
    display: none;
  }
}

/* --- Desktop menu --- */
.site-nav__menu {
  display: none;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav__link {
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-nav__link:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-alt);
}

.site-nav__link--active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* --- Dropdown containers --- */
.site-nav__dropdown {
  position: relative;
}

.site-nav__link--dropdown {
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav__link--dropdown::after {
  content: '▾';
  font-size: 0.75em;
  opacity: 0.7;
  transition: transform var(--transition-fast);
}

.site-nav__dropdown:hover .site-nav__link--dropdown::after,
.site-nav__dropdown:focus-within .site-nav__link--dropdown::after {
  transform: rotate(180deg);
}

/* --- Dropdown content --- */
.site-nav__dropdown-content {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: var(--space-xs);
  margin-top: var(--space-xs);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-fast), 
              transform var(--transition-fast),
              visibility var(--transition-fast);
  z-index: 1000;
}

.site-nav__dropdown:hover .site-nav__dropdown-content,
.site-nav__dropdown:focus-within .site-nav__dropdown-content {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-nav__dropdown-link {
  display: block;
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.site-nav__dropdown-link:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-alt);
}

.site-nav__dropdown-link--active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  background-color: var(--color-bg-alt);
}

/* --- Hamburger knop --- */
.site-nav__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.site-nav__toggle:hover {
  background-color: var(--color-bg-alt);
}

.site-nav__toggle-icon {
  display: block;
  width: 1.25rem;
  height: 2px;
  background-color: var(--color-text);
  position: relative;
  transition: background-color var(--transition-fast);
}

.site-nav__toggle-icon::before,
.site-nav__toggle-icon::after {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  position: absolute;
  transition: transform var(--transition-base);
}

.site-nav__toggle-icon::before {
  top: -6px;
}

.site-nav__toggle-icon::after {
  top: 6px;
}

/* Hamburger open state */
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-icon {
  background-color: transparent;
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

/* --- Mobiel menu --- */
.site-nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-bg);
  padding: var(--space-xl) var(--container-padding);
  overflow-y: auto;
  z-index: 99;
}

.site-nav__mobile[aria-hidden="false"] {
  display: block;
}

.site-nav__mobile-link {
  display: block;
  text-decoration: none;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition-fast);
}

.site-nav__mobile-link:hover {
  color: var(--color-primary);
}

.site-nav__mobile-link--active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* --- Mobile accordion for dropdown menus --- */
.site-nav__mobile-accordion {
  border-bottom: 1px solid var(--color-border);
}

.site-nav__mobile-accordion-btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: none;
  border: none;
  font-family: inherit;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  padding: var(--space-md) 0;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.site-nav__mobile-accordion-btn::after {
  content: '▾';
  font-size: 0.875em;
  opacity: 0.7;
  transition: transform var(--transition-fast);
}

.site-nav__mobile-accordion-btn[aria-expanded="true"]::after {
  transform: rotate(180deg);
}

.site-nav__mobile-accordion-btn:hover {
  color: var(--color-primary);
}

.site-nav__mobile-accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.site-nav__mobile-accordion-content[aria-hidden="false"] {
  max-height: 500px;
}

.site-nav__mobile-accordion-content .site-nav__mobile-link {
  padding-left: var(--space-md);
  font-size: var(--font-size-base);
  border-bottom: none;
}

/* --- Breadcrumb --- */
.site-breadcrumb {
  margin-bottom: var(--space-lg);
}

.site-breadcrumb--floating {
  margin: calc(var(--nav-height) + var(--space-md)) auto var(--space-lg);
  max-width: var(--container-max);
  padding: 0 var(--container-padding);
}

.site-breadcrumb__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
}

.site-breadcrumb__item {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.site-breadcrumb__item + .site-breadcrumb__item::before {
  content: '/';
  margin: 0 0.5rem;
  color: var(--color-text-light);
}

.site-breadcrumb__item a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-breadcrumb__item a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.site-breadcrumb__current {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

/* --- Desktop: toon menu, verberg hamburger --- */
@media (min-width: 768px) {
  .site-nav__menu {
    display: flex;
  }

  .site-nav__toggle {
    display: none;
  }

  .site-nav__mobile {
    display: none !important;
  }
}