.rt-vertical-navigation .rt-vertical-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.rt-vertical-navigation .rt-vertical-menu li {
    position: relative;
}

.rt-vertical-navigation .rt-vertical-menu li .menu-link-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
}

.rt-vertical-navigation .rt-vertical-menu li .menu-link-wrapper a {
    text-decoration: none;
    color: inherit;
    flex: 1;
    cursor: pointer;
}

.rt-vertical-navigation .rt-vertical-menu li .submenu-toggle {
    cursor: pointer;
    font-weight: bold;
    padding-left: 8px;
}

.rt-vertical-navigation .rt-vertical-menu li ul {
    display: none;
    list-style: none;
    padding-left: 20px;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.rt-vertical-navigation .rt-vertical-menu li.open > ul {
    display: block;
}