.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 76px;
  padding: 12px var(--gutter);
  border-bottom: 1px solid #d9d9d9;
  background-color: var(--color-bg);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  text-transform: uppercase;
}

.site-header__title {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
}

.site-header__logo {
  width: clamp(120px, 15vw, 220px);
  max-width: 100%;
  height: auto;
}

.menu-toggle {
  position: absolute;
  left: var(--gutter);
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  border: 1px solid #1a1a1a;
  border-radius: 8px;
  background-color: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  transition:
    border-color 0.25s ease,
    box-shadow 0.25s ease;
}

.menu-toggle:hover {
  border-color: rgb(var(--color-theme-1));
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.menu-toggle__line {
  width: 22px;
  height: 2px;
  background-color: currentColor;
  transition: transform 0.25s ease;
}

.menu-toggle[aria-expanded='true'] .menu-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded='true'] .menu-toggle__line:nth-child(2) {
  transform: scaleX(0);
}

.menu-toggle[aria-expanded='true'] .menu-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  pointer-events: none;
}

.site-menu__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.35);
  opacity: 0;
  transition: opacity 0.35s var(--ease-premium);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

.site-menu__panel {
  position: absolute;
  top: 0;
  left: 0;
  width: min(86vw, 360px);
  height: 100%;
  padding: 24px;
  background-color: var(--color-bg);
  box-shadow: 8px 0 24px rgba(0, 0, 0, 0.18);
  transform: translateX(-102%);
  transition: transform 0.45s var(--ease-premium);
  overflow-y: auto;
  text-align: left;
}

.site-menu__title {
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-size: 1.5rem;
}

.site-menu__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-menu__item + .site-menu__item {
  margin-top: 8px;
}

.site-menu__link {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--color-text);
  text-decoration: none;
  transition:
    background-color 0.25s ease,
    transform 0.25s ease;
}

.site-menu__link:hover {
  background-color: #f2f2f2;
  transform: translateX(3px);
}

.site-menu__link[aria-current='page'] {
  font-weight: 700;
  background-color: #ececec;
}

.site-menu.is-open {
  pointer-events: auto;
}

.site-menu.is-open .site-menu__backdrop {
  opacity: 1;
}

.site-menu.is-open .site-menu__panel {
  transform: translateX(0);
}

body.menu-open {
  overflow: hidden;
}

.site-footer.site-footer--global {
  margin-top: var(--space-xl);
  padding: 0;
  background-color: var(--color-bg);
}

.site-footer__logos {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--gutter);
  background-color: var(--color-bg);
  flex-wrap: wrap;
}

.site-footer__logo {
  width: 100%;
  height: auto;
  max-width: 280px;
  object-fit: contain;
}

.site-footer__logo--institutional {
  max-width: 280px;
}

.site-footer__logo--museum {
  max-width: 220px;
}

.site-footer__meta {
  padding: var(--space-xs) var(--gutter);
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  font-size: 12px;
  text-align: center;
}

.site-footer__meta p {
  margin: 0;
}

.site-footer__meta a {
  color: var(--color-footer-text);
  text-decoration: underline;
}

.site-footer__meta a:hover {
  text-decoration: none;
}

.site-footer__meta .site-footer__credit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: var(--space-xs);
  text-decoration: none;
  color: var(--color-footer-text);
  opacity: 0.85;
  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
}

.site-footer__meta .site-footer__credit:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.site-footer__credit-label {
  font-size: 11px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.site-footer__credit-logo {
  height: 16px;
  width: auto;
}

@media (max-width: 768px) {
  .site-footer__logos {
    flex-direction: column;
    gap: 25px;
    padding: 30px var(--gutter);
  }

  .site-footer__logo {
    max-width: 180px;
  }
}