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

.site-header__inner {
  display: grid;
  min-height: 5rem;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-5);
}

.site-header__brand,
.site-footer__brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-graphite);
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: var(--tracking-heading);
  line-height: 1;
  text-decoration: none;
}

.site-header__brand:hover,
.site-header__brand:focus-visible {
  color: var(--color-graphite);
  text-decoration: none;
}

.site-header__mark {
  width: 2.25rem;
  height: 2.25rem;
  flex: 0 0 2.25rem;
  object-fit: contain;
}

.site-header__brand-text {
  white-space: nowrap;
}

.site-header__nav {
  min-width: 0;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.75rem, 1.6vw, 1.5rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__nav-list li,
.site-header__nav-list li + li {
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  border-bottom: 2px solid transparent;
  color: var(--color-graphite);
  font-size: var(--text-label);
  font-weight: 600;
  line-height: 1.45;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__nav-link:hover,
.site-header__nav-link[aria-current="page"] {
  border-bottom-color: var(--color-cobalt);
  color: var(--color-cobalt);
}

.site-header__nav-extra {
  display: none;
}

.site-header__cta {
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-control);
  background: var(--color-white);
  padding: 0;
}

.nav-toggle:hover {
  border-color: var(--color-graphite);
  background: var(--color-pearl);
}

.nav-toggle__line {
  display: block;
  width: 1.125rem;
  height: 2px;
  background: var(--color-graphite);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
  transform: translateY(0.375rem) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
  transform: translateY(-0.375rem) rotate(-45deg);
}

@media (max-width: 1040px) {
  .site-header__inner {
    grid-template-columns: minmax(0, 1fr) auto auto;
    gap: var(--space-3);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: absolute;
    top: calc(100% + 1px);
    right: var(--container-padding);
    left: var(--container-padding);
    display: none;
    max-height: calc(100vh - 5rem);
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-top: 2px solid var(--color-cobalt);
    border-radius: 0 0 var(--radius-card) var(--radius-card);
    background: var(--color-white);
    box-shadow: var(--shadow-elevated);
  }

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

  .site-header__nav-list {
    display: grid;
    justify-content: stretch;
    gap: 0;
    padding: var(--space-2);
  }

  .site-header__nav-extra {
    display: block;
  }

  .site-header__nav-link {
    width: 100%;
    min-height: 2.75rem;
    border-bottom: 0;
    border-left: 2px solid transparent;
    padding: 0 var(--space-3);
  }

  .site-header__nav-link:hover,
  .site-header__nav-link[aria-current="page"] {
    border-bottom-color: transparent;
    border-left-color: var(--color-cobalt);
    background: var(--color-pearl);
  }
}

@media (max-width: 699px) {
  .site-header__inner {
    min-height: 4.5rem;
  }

  .site-header__mark {
    width: 1.875rem;
    height: 1.875rem;
    flex-basis: 1.875rem;
  }

  .site-header__brand {
    gap: var(--space-2);
    font-size: 1rem;
  }

  .site-header__cta {
    display: none;
  }

  .site-header__nav {
    right: var(--container-padding-mobile);
    left: var(--container-padding-mobile);
    max-height: calc(100vh - 4.5rem);
  }
}

ul { list-style: none !important; }
.nav-toggle { flex-direction: column; }