.site-header {
  position: relative;
  z-index: 1000;
  background-color: var(--color-midnight);
  border-bottom: var(--border-dark-muted);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-sm) var(--page-padding-mobile);
  min-height: 4.5rem;
}

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

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

.site-header__logo {
  width: 2.75rem;
  height: 2.75rem;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.3125rem;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-gold-muted);
  border-radius: var(--radius-default);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.site-header__toggle:hover {
  border-color: var(--color-gold-bright);
}

.site-header__toggle:focus-visible {
  outline: var(--border-focus);
  outline-offset: 2px;
}

.site-header__toggle-line {
  display: block;
  width: 1.25rem;
  height: 2px;
  background-color: var(--color-ivory);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
  transform: translateY(0.4375rem) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(2) {
  opacity: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(3) {
  transform: translateY(-0.4375rem) rotate(-45deg);
}

.site-header__nav {
  display: flex;
  align-items: center;
  min-width: 0;
}

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

.site-header__nav-item {
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  display: inline-block;
  padding: var(--space-xs) 0;
  font-size: var(--text-small-size);
  line-height: var(--leading-small);
  color: var(--color-ivory);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.site-header__nav-link:hover {
  color: var(--color-gold-bright);
}

.site-header__nav-link[aria-current="page"] {
  color: var(--color-gold);
  text-decoration: underline;
  text-decoration-color: var(--color-gold);
  text-underline-offset: 4px;
}

@media (max-width: 63.9375rem) {
  .site-header__inner {
    flex-wrap: wrap;
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__nav {
    position: fixed;
    top: 4.5rem;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    display: block;
    background-color: var(--color-midnight);
    padding: var(--space-lg) var(--page-padding-mobile);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5rem);
    transition: opacity var(--transition-fade), visibility var(--transition-fade), transform var(--transition-fade);
  }

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

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
  }

  .site-header__nav-link {
    display: block;
    padding: var(--space-sm) 0;
    font-size: var(--text-h4-size);
    line-height: var(--leading-h4);
  }
}

@media (min-width: 64rem) {
  .site-header__inner {
    padding-inline: var(--page-padding-desktop);
  }
}