.unterseiten-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center; /* theme may override */
}

.unterseiten-menu > .menu-category {
    position: relative;
    margin: 0;
}

.unterseiten-menu > .menu-category > .category-title {
    display: block;
    padding: 12px 20px;
    font-weight: bold;
    text-decoration: none;
    color: #333;
    white-space: nowrap;
    cursor: pointer;
}

/* base submenu */
.unterseiten-menu .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    min-width: 220px;
    list-style: none;
    padding: 8px 0;
    margin: 0;
    border: 1px solid #ddd;
    z-index: 1000;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

.unterseiten-menu .submenu li {
    position: relative;
}

.unterseiten-menu .submenu a {
    display: block;
    padding: 8px 15px;
    text-decoration: none;
    color: #0073aa;
    white-space: nowrap;
}

.unterseiten-menu .submenu a:hover {
    background: #f5f5f5;
}

/* nested submenu position (flyout to right) */
.unterseiten-menu .submenu .submenu {
    top: 0;
    left: 100%;
    margin-left: 1px;
}

/* show on hover for devices that support hover */
@media (hover: hover) {
    .unterseiten-menu li:hover > .submenu {
        display: block;
    }
}

/* Mobile: stack vertically and use toggles */
@media (max-width: 768px) {
    .unterseiten-menu {
        flex-direction: column;
        align-items: stretch;
    }

    .unterseiten-menu > .menu-category > .category-title {
        padding: 15px;
        background: #f9f9f9;
        border-bottom: 1px solid #ddd;
    }

    .unterseiten-menu .submenu {
        position: static;
        border: none;
        background: #fff;
        box-shadow: none;
    }

    .unterseiten-menu .submenu a {
        padding: 10px 20px;
    }

    .unterseiten-menu .submenu.show {
        display: block;
    }
}