/* ===== NAVIGATIE ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(0.75rem);
  -webkit-backdrop-filter: blur(0.75rem);
  border-bottom: 0.0625rem solid transparent;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border-light);
  box-shadow: 0 0.125rem 1.25rem rgba(30, 107, 138, 0.07);
}

.nav {
  display: flex;
  align-items: center;
  height: 100%;
  gap: var(--space-xl);
}

/* Logo */
.nav-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo img {
  height: 2.25rem;
  width: auto;
}

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-left: auto;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--color-text);
}

/* CTA in nav */
.nav-cta {
  flex-shrink: 0;
  margin-left: var(--space-md);
}

/* ===== TAALWISSELAAR ===== */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  flex-shrink: 0;
}

.lang-divider {
  color: var(--color-border);
  font-size: var(--text-sm);
  user-select: none;
}

.lang-btn {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.25rem 0.375rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
  line-height: 1;
}

.lang-btn:hover {
  color: var(--color-text);
}

.lang-btn.is-active {
  font-weight: 700;
  color: var(--color-text);
}

/* ===== HAMBURGER ===== */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 0.3125rem;
  width: 2.5rem;
  height: 2.5rem;
  margin-left: auto;
  cursor: pointer;
  background: none;
  border: none;
  padding: var(--space-sm);
}

.nav-hamburger span {
  display: block;
  height: 0.125rem;
  background-color: var(--color-text);
  border-radius: 0.125rem;
  transition:
    width var(--transition-base),
    transform var(--transition-base),
    opacity var(--transition-base);
}

.nav-hamburger span:nth-child(1) { width: 1.5rem; }
.nav-hamburger span:nth-child(2) { width: 1.125rem; }
.nav-hamburger span:nth-child(3) { width: 1.5rem; }

.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(0.4375rem) rotate(45deg);
  width: 1.5rem;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-0.4375rem) rotate(-45deg);
  width: 1.5rem;
}

/* ===== MOBIEL ===== */
@media (max-width: 48rem) {
  .nav-hamburger {
    display: flex;
    order: 2;
    margin-left: 0;
  }

  .lang-switcher {
    order: 1;
    margin-left: auto;
  }

  .nav-cta {
    display: none;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 0;
    padding-top: var(--space-xl);
    margin: 0;
    transform: translateX(100%);
    transition: transform var(--transition-spring);
    pointer-events: none;
    overflow-y: auto;
  }

  .nav-links.is-open {
    transform: translateX(0);
    pointer-events: all;
  }

  .nav-links li {
    width: 100%;
    border-bottom: 0.0625rem solid var(--color-border-light);
  }

  .nav-links a {
    display: block;
    padding: var(--space-lg) var(--space-xl);
    font-size: var(--text-xl);
    color: var(--color-text);
  }

  .nav-links a:hover {
    background-color: var(--color-surface);
  }
}