.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-page);
  border-bottom: 1px solid var(--color-line-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  margin-right: auto;
}

.brand img {
  width: 30px;
  height: auto;
}

.brand-name {
  font-family: var(--font-wordmark);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-wordmark);
}

.site-nav,
.header-cta {
  display: none;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  display: inline-flex;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover {
  color: var(--color-ink);
  background: var(--color-mist);
}

.header-cta {
  min-height: 2.5rem;
  padding: 0 1.125rem;
  font-size: 0.9375rem;
}

.menu-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 3rem;
  height: 3rem;
  padding: 0 0.75rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: transparent;
  cursor: pointer;
}

.menu-toggle-bar {
  display: block;
  height: 2px;
  background: var(--color-ink);
  border-radius: 1px;
  transition: transform var(--transition);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-menu {
  border-top: 1px solid var(--color-line-soft);
  background: var(--color-page);
}

.mobile-menu nav {
  padding-block: var(--space-4) var(--space-5);
}

.mobile-list {
  display: grid;
  gap: var(--space-1);
}

.mobile-link {
  display: block;
  padding: 0.875rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 1.0625rem;
  font-weight: 600;
  text-decoration: none;
}

.mobile-link:hover {
  background: var(--color-mist);
}

.site-footer {
  background: var(--color-night);
  color: var(--color-on-dark-soft);
  padding-block: var(--space-8) var(--space-6);
  font-size: 0.9375rem;
}

.footer-grid {
  display: grid;
  gap: var(--space-6);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid var(--color-night-line);
}

.footer-brand .brand-name {
  color: var(--color-on-dark);
}

.footer-brand p {
  max-width: 22rem;
  margin-top: var(--space-4);
}

.footer-title {
  margin-bottom: var(--space-4);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-on-dark);
}

.footer-links {
  display: grid;
  gap: var(--space-3);
}

.footer-links a {
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--color-on-dark);
}

.footer-legal {
  padding-top: var(--space-5);
  font-size: 0.875rem;
}

@media (min-width: 40rem) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 56rem) {
  .site-nav {
    display: block;
  }

  .header-cta {
    display: inline-flex;
  }

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

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
  }
}