#sel-mob-backdrop, #sel-mob-menu {
                position: fixed; left: 0; right: 0;
                top: var(--header-height);
            }
            #sel-mob-backdrop {
                bottom: 0;
                background: rgba(0,0,0,0.4);
                z-index: 9998;
            }
            #sel-mob-menu {
                bottom: 0;
                background: var(--bg-primary, #fff);
                box-shadow: 0 8px 30px rgba(0,0,0,0.12);
                border-top: 1px solid rgba(0,0,0,0.1);
                overflow-y: auto;
                z-index: 9999;
            }
            @media (min-width: 1024px) {
                #sel-mob-backdrop, #sel-mob-menu { display: none !important; }
            }