/* Header layout */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(249, 250, 251, 0.98);
  border-bottom: 1px solid rgba(209, 213, 219, 0.6);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-4);
}

/* Branding */
.header-brand {
  display: flex;
  align-items: flex-start;
}

.brand-link {
  display: inline-flex;
  flex-direction: column;
  gap: var(--space-1);
}

.brand-mark {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary-soft);
}

.brand-mark span {
  color: var(--color-accent-gold);
}

.brand-tagline {
  margin: 0;
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Navigation */
.primary-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.25rem;
  font-size: var(--font-size-sm);
  color: var(--gray-700);
  transition: color var(--transition-normal);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #f6e6b4, #d4af37);
  transition: width var(--transition-normal);
}

.nav-link:hover {
  color: var(--color-accent-navy);
}

.nav-link:hover::after,
.nav-link--active::after {
  width: 100%;
}

.nav-link--active {
  color: var(--color-accent-navy);
}

.nav-item-cta .nav-link-cta {
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(212, 175, 55, 0.9);
  background: radial-gradient(circle at 10% 0%, #f6e6b4 0, #d4af37 35%, #b48a15 70%);
  color: #111827;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-item-cta .nav-link-cta::after {
  display: none;
}

.nav-item-cta .nav-link-cta:hover {
  filter: brightness(0.97);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface);
  cursor: pointer;
  transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.nav-toggle:hover {
  background-color: var(--gray-100);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 2px;
}

.nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-800);
  transition: transform var(--transition-normal), opacity var(--transition-normal), width var(--transition-normal);
}

.nav-toggle.is-active .nav-toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle-bar:nth-child(2) {
  opacity: 0;
  width: 0;
}

.nav-toggle.is-active .nav-toggle-bar:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Responsive behavior */
@media (max-width: 960px) {
  .nav-toggle {
    display: inline-flex;
  }

  .primary-nav {
    position: fixed;
    width: 100%;
    inset-block-start: 64px;
    background: rgba(15, 23, 42, 1);
    backdrop-filter: blur(18px);
    transform: translateY(-100%);
    opacity: 0;
    left: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
  }

  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-6) var(--space-4) var(--space-8);
  }

  .nav-link {
    font-size: var(--font-size-lg);
    color: #f9fafb;
  }

  .nav-link::after {
    background: linear-gradient(90deg, #f6e6b4, #facc15);
    height: 2px;
  }

  .nav-item-cta .nav-link-cta {
    background: transparent;
    border-width: 0;
    padding-left: 0.25rem;
    padding-right: 0.25rem;
    color: #fbbf24;
    letter-spacing: 0.16em;
  }
}

@media (min-width: 961px) {
  .primary-nav {
    position: static;
    inset: auto;
    background: transparent;
    transform: none;
    opacity: 1;
    visibility: visible;
  }
}

@media (max-width: 640px) {
  .brand-tagline {
    display: none;
  }
}