.site-header {
  position: relative;
  z-index: 1000;
  background-color: var(--color-midnight-navy);
  border-bottom: 1px solid var(--color-antique-gold);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-24);
  min-height: 72px;
  padding-block: var(--space-12);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  text-decoration: none;
  color: var(--color-champagne-ivory);
  flex-shrink: 0;
  min-width: 0;
}

.site-header__brand:hover {
  color: var(--color-polished-brass);
}

.site-header__logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  line-height: 1.1;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: inherit;
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: 1px solid var(--color-antique-gold);
  border-radius: var(--radius-control);
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color var(--transition-color), background-color var(--transition-color);
}

.site-header__toggle:hover {
  border-color: var(--color-polished-brass);
  background-color: rgba(198, 161, 91, 0.1);
}

.site-header__toggle:focus-visible {
  outline: 2px solid var(--color-polished-brass);
  outline-offset: 2px;
}

.site-header__toggle-icon {
  position: relative;
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-champagne-ivory);
  transition: background-color var(--transition-color);
}

.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background-color: var(--color-champagne-ivory);
  transition: transform var(--transition-color), top var(--transition-color), bottom var(--transition-color);
}

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

.site-header__toggle-icon::after {
  bottom: -6px;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon {
  background-color: transparent;
}

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

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

.site-nav {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-24);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__item {
  margin: 0;
  padding: 0;
}

.site-nav__item + .site-nav__item {
  margin: 0;
}

.site-nav__link {
  display: inline-block;
  padding: var(--space-8) 0;
  font-family: var(--font-body);
  font-size: var(--text-label-size);
  line-height: var(--text-label-line-height);
  font-weight: var(--text-label-weight);
  letter-spacing: var(--text-label-tracking);
  text-transform: uppercase;
  color: var(--color-champagne-ivory);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-color);
}

.site-nav__link:hover {
  color: var(--color-polished-brass);
}

.site-nav__link:focus-visible {
  outline: 2px solid var(--color-polished-brass);
  outline-offset: 2px;
  border-radius: var(--radius-control);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-antique-gold);
  border-bottom: 2px solid var(--color-antique-gold);
  padding-bottom: calc(var(--space-8) - 2px);
}

@media (max-width: 991px) {
  .site-header__toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 999;
    background-color: var(--color-midnight-navy);
    border-bottom: 1px solid var(--color-antique-gold);
    padding: var(--space-24);
    display: none;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    box-shadow: var(--shadow-elevated-card);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-8);
  }

  .site-nav__link {
    display: block;
    padding: var(--space-12) var(--space-8);
    font-size: 1rem;
    letter-spacing: 0.08em;
    border-bottom: 1px solid rgba(198, 161, 91, 0.2);
  }

  .site-nav__link[aria-current="page"] {
    border-bottom: 2px solid var(--color-antique-gold);
    padding-bottom: calc(var(--space-12) - 2px);
  }
}

@media (min-width: 992px) {
  .site-header__inner {
    min-height: 80px;
  }

  .site-header__logo {
    width: 44px;
    height: 44px;
  }

  .site-header__brand-text {
    font-size: 1.25rem;
  }
}