.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  border-bottom: 1px solid var(--line);
  transition: border-color 220ms ease;
}

.site-header::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(245, 245, 246, 0.92);
  backdrop-filter: blur(8px);
  content: '';
}

.site-header.is-scrolled {
  border-bottom-color: var(--line-strong);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  width: min(calc(100% - 64px), var(--container));
  height: 100%;
  margin-inline: auto;
}

.brand {
  display: flex;
  width: 270px;
  height: 76px;
  align-items: center;
  flex-shrink: 0;
  overflow: hidden;
}

.brand img {
  width: 260px;
  height: auto;
}

.primary-nav {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(18px, 1.6vw, 28px);
  margin-right: 28px;
}

.nav-link {
  position: relative;
  border: 0;
  padding: 0;
  color: var(--text-muted);
  background: transparent;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.3;
  text-decoration: none;
  transition: color 180ms ease;
}

.nav-link::after {
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 1px;
  background: var(--red);
  content: '';
  transform: scaleX(0);
  transition: transform 180ms var(--ease-out);
}

.nav-link:hover,
.nav-link.is-active,
.nav-link[aria-current='location'] {
  color: var(--text);
}

.nav-link:hover::after,
.nav-link.is-active::after,
.nav-link[aria-current='location']::after {
  transform: scaleX(1);
}

.nav-dropdown {
  position: relative;
  display: flex;
  height: 100%;
  align-items: center;
}

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.nav-dropdown-toggle svg {
  transition: transform 180ms ease;
}

.nav-dropdown.is-open .nav-dropdown-toggle svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  width: 292px;
  padding: 8px 0;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -8px);
  transition: opacity 180ms ease, transform 180ms var(--ease-out), visibility 180ms ease;
  visibility: hidden;
}

.nav-dropdown.is-open .nav-dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
  visibility: visible;
}

.nav-dropdown-menu a {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.35;
  text-align: center;
  text-decoration: none;
  transition: color 180ms ease, background-color 180ms ease;
}

.nav-dropdown-menu a:hover,
.nav-dropdown-menu a:focus-visible {
  color: var(--text);
  background: var(--surface-2);
}

.header-cta {
  min-height: 44px;
  white-space: nowrap;
}

.nav-mobile-cta,
.menu-toggle {
  display: none;
}

.menu-toggle {
  position: relative;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  background: transparent;
  cursor: pointer;
}

.menu-toggle > span:not(.sr-only) {
  position: absolute;
  width: 21px;
  height: 2px;
  background: var(--text);
  transition: transform 180ms ease;
}

.menu-toggle > span:nth-child(2) {
  transform: translateY(-4px);
}

.menu-toggle > span:nth-child(3) {
  transform: translateY(4px);
}

.menu-toggle[aria-expanded='true'] > span:nth-child(2) {
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded='true'] > span:nth-child(3) {
  transform: rotate(-45deg);
}