/**
 * BookPound MarketplaceCustom - loaded on every page by layout/default.xml.
 *
 * One list of books in the phone menu, not two. The theme's mobile menu
 * (Sm_Amabook::html/mobile/nav-mobile.phtml) already prints the category
 * list with sub-topics (ul.nav-cssmenu). On small screens the theme's
 * web/js/theme-js.js then also moves the desktop "All Categories" megamenu
 * (ul.vertical-type) into the same #navigation-mobile, so every book showed
 * twice. Hide the moved copy there only. On desktop the same script moves it
 * back into the header, where this selector no longer matches, so the
 * desktop menu is untouched. Kept in this module so a theme update cannot
 * undo it. Checked on the live site 2026-09-14.
 */
#navigation-mobile .vertical-type {
    display: none;
}