/* Shared geometry for the real header and its fullscreen overlay counterpart. */
body :is(.site-header .menu-toggle, .portal-menu-toggle) {
  display: flex;
  flex: 0 0 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  box-sizing: border-box;
  width: 44px;
  min-width: 44px;
  height: 44px;
  min-height: 44px;
  padding: 8px;
  gap: 6px;
  border: 0;
  background: transparent;
  cursor: pointer;
}
body :is(.site-header .menu-toggle, .portal-menu-toggle) > span {
  display: block;
  flex: 0 0 2px;
  width: 28px;
  height: 2px;
  transform-origin: center;
  transition: transform .22s cubic-bezier(.2,.7,.2,1);
}
body :is(.site-header .menu-toggle, .portal-menu-toggle)[aria-expanded="true"] > span:first-child {
  transform: translateY(4px) rotate(45deg);
}
body :is(.site-header .menu-toggle, .portal-menu-toggle)[aria-expanded="true"] > span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}
@media (prefers-reduced-motion: reduce) {
  body :is(.site-header .menu-toggle, .portal-menu-toggle) > span { transition: none; }
}