/* ==========================================================================
   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;
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  color: var(--color-primary);
}

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

.site-nav__logo svg {
  width: 2rem;
  height: 2rem;
}

/* --- 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);
}

/* --- 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);
}

/* --- 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;
  }
}