.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-midnight-blue);
  color: var(--color-cream);
  border-block-end: var(--border-thin) solid var(--color-dark-walnut);
}

.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-inline: var(--container-gutter);
  min-height: 4.5rem;
}

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

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

.site-header__logo {
  width: 3rem;
  height: 3rem;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 0.3125rem;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.5rem;
  background: transparent;
  border: var(--border-thin) solid var(--color-cream-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.site-header__toggle:hover {
  border-color: var(--color-burgundy-light);
  background-color: rgba(245, 240, 230, 0.08);
}

.site-header__toggle:focus-visible {
  outline: var(--border-focus) solid var(--color-burgundy);
  outline-offset: 0.125rem;
}

.site-header__toggle-line {
  display: block;
  width: 100%;
  height: 0.125rem;
  background-color: var(--color-cream);
  border-radius: var(--radius-full);
  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;
  flex-shrink: 1;
  min-width: 0;
}

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

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

.site-header__nav-item + .site-header__nav-item {
  margin-block-start: 0;
}

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

.site-header__nav-link:hover {
  color: var(--color-burgundy-light);
}

.site-header__nav-link:focus-visible {
  outline: var(--border-focus) solid var(--color-burgundy);
  outline-offset: 0.125rem;
}

@media (max-width: 64rem) {
  .site-header__inner {
    flex-wrap: nowrap;
  }

  .site-header__brand-text {
    display: none;
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-midnight-blue);
    border-block-end: var(--border-thin) solid var(--color-dark-walnut);
    box-shadow: var(--shadow-lifted);
    max-height: calc(100vh - 4.5rem);
    overflow-y: auto;
    display: none;
    padding: var(--space-md) var(--container-gutter);
  }

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

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

  .site-header__nav-link {
    display: block;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
  }

  .site-header__nav-link:hover {
    background-color: rgba(245, 240, 230, 0.08);
  }
}

@media (min-width: 64.0625rem) {
  .site-header__nav {
    display: flex;
  }
}