.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-16);
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.site-logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(200, 166, 90, 0.75);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-accent);
  font-size: 1rem;
  background: radial-gradient(circle at 30% 0, rgba(200, 166, 90, 0.6), transparent 60%),
              radial-gradient(circle at 70% 100%, rgba(15, 94, 75, 0.7), transparent 70%),
              #050608;
  box-shadow: 0 0 22px rgba(0, 0, 0, 0.8);
}

.site-logo-wordmark {
  font-family: var(--font-accent);
  font-size: 0.9rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gray-50);
  white-space: nowrap;
}

/* Navigation */
.primary-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-24);
}

.primary-nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-24);
}

.primary-nav-link {
  font-size: var(--font-size-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-100);
  padding: 6px 0;
}

.primary-nav-link:hover,
.primary-nav-link:focus-visible {
  color: var(--color-accent-gold);
}

.primary-nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  margin-left: var(--space-16);
}

.header-cta {
  font-size: var(--font-size-xs);
}

.header-cta-secondary {
  font-size: var(--font-size-xs);
}

/* Mobile nav toggle */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(5, 6, 8, 0.9);
  padding: 0;
  flex-direction: column;
}

.nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--gray-100);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle-bar + .nav-toggle-bar {
  margin-top: 4px;
}

.nav-toggle.is-active .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle.is-active .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Header announcement bar */
.header-announcement {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: radial-gradient(circle at 0 0, rgba(200, 166, 90, 0.22), transparent 60%),
              radial-gradient(circle at 100% 100%, rgba(15, 94, 75, 0.45), transparent 65%),
              rgba(5, 6, 8, 0.96);
}

.header-announcement-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-16);
  padding-top: 8px;
  padding-bottom: 8px;
}

.header-announcement-text {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  font-size: var(--font-size-xs);
  color: var(--gray-100);
}

.header-announcement-link {
  font-size: var(--font-size-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
}

/* Responsive */
@media (max-width: 899px) {
  .primary-nav {
    position: fixed;
    inset: 64px 0 auto 0;
    background: rgba(5, 6, 8, 0.98);
    backdrop-filter: blur(var(--glass-blur));
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-24) var(--container-padding-x) var(--space-32);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
  }

  .primary-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .primary-nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-16);
  }

  .primary-nav-link {
    font-size: var(--font-size-sm);
  }

  .primary-nav-cta {
    margin-left: 0;
    margin-top: var(--space-24);
  }
}

@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }
}

@media (max-width: 599px) {
  .site-header-inner {
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .site-logo-wordmark {
    letter-spacing: 0.22em;
    font-size: 0.8rem;
  }

  .header-announcement-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}