.site-header {
  position: relative;
  z-index: 100;
  background-color: var(--canvas-cream);
  border-bottom: 1px solid var(--line-muted);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 4rem;
  padding-block: var(--space-sm);
}

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

.site-header__brand:hover {
  color: var(--burgundy);
  text-decoration: none;
}

.site-header__logo {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: contain;
  display: block;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

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

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

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

.site-header__link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0 var(--space-xs);
  font-size: var(--text-body-sm-size);
  font-weight: 500;
  letter-spacing: var(--tracking-caption);
  text-transform: uppercase;
  color: var(--ink-navy);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.site-header__link:hover {
  color: var(--burgundy);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.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: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.site-header__toggle-line {
  display: block;
  width: 1.5rem;
  height: 2px;
  background-color: var(--ink-navy);
  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);
}

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

  .site-header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: calc(100vh - 100%);
    overflow-y: auto;
    background-color: var(--surface-ink);
    padding: var(--space-lg);
    display: none;
    box-shadow: var(--shadow-modal);
  }

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

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

  .site-header__link {
    display: flex;
    width: 100%;
    min-height: 3rem;
    padding: var(--space-sm) var(--space-md);
    color: var(--canvas-cream);
    font-size: var(--text-h4-size);
    text-transform: none;
    letter-spacing: normal;
  }

  .site-header__link:hover {
    color: var(--line-muted);
    text-decoration: none;
  }
}

@media (min-width: 64rem) {
  .site-header__inner {
    min-height: 4.5rem;
  }

  .site-header__logo {
    width: 2.5rem;
    height: 2.5rem;
  }

  .site-header__brand-text {
    font-size: 1.125rem;
  }
}