/* Visible keyboard focus in both shop themes. */
.site-header a:focus-visible, .site-header button:focus-visible,
#mobileMenu a:focus-visible, #mobileMenu button:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 1px;
    box-shadow: 0 0 0 4px #111827;
}
#mobileMenuClose { width: 44px; height: 44px; min-width: 44px; }
@media (prefers-reduced-motion: reduce) {
    #mobileMenu, #mobileMenuOverlay, #mobileMenuToggle span { transition: none; }
}