.oow-menu.oow-theme-classic-vertical {
    background: #f8f8f8;
    padding: 15px;
    border-left: 4px solid #0073aa;
}

.oow-menu.oow-theme-classic-vertical ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.oow-menu.oow-theme-classic-vertical ul li {
    margin: 0;
    padding: 5px 0;
}

.oow-menu.oow-theme-classic-vertical.oow-inline ul li {
    display: inline-block;
    margin-right: 15px;
}

.oow-menu.oow-theme-classic-vertical ul li a {
    color: #333;
    font-size: 16px;
    text-decoration: none;
    transition: color 0.3s;
}

.oow-menu.oow-theme-classic-vertical ul li a:hover,
.oow-menu.oow-theme-classic-vertical ul li a[aria-current="page"] {
    color: #0073aa;
    font-weight: bold;
}

.oow-menu.oow-theme-classic-vertical ul.sub-menu {
    margin-left: 15px;
    padding-left: 10px;
}

.oow-menu.oow-theme-classic-vertical ul.sub-menu li a {
    font-size: 14px;
}