.course-sidebar {

    padding: 20px;
    border-radius: 5px;
}

.course-sidebar h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.course-sidebar ul {
    list-style-type: none;
    padding: 0;
    margin-bottom: 20px;
}

.course-sidebar ul li {
    margin-bottom: 10px;
}

.course-sidebar ul li a {

    color: #333;
}

.course-sidebar ul li a:hover {
    color: #007bff;
}

.course-sidebar .search-filter-options input[type="text"] {
    width: 100%;
    padding: 5px;
    border: none;
    border-radius: 3px;
    margin-bottom: 10px;
}

.course-sidebar .search-filter-options button {
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 3px;
    padding: 5px 10px;
    cursor: pointer;
}

.course-sidebar .navigation-links a {
    display: block;
    margin-bottom: 10px;

}

.course-sidebar .navigation-links a:hover {
    color: #007bff;
}

.course-sidebar .user-progress h4 {
    font-size: 16px;
    margin-bottom: 10px;
}

.course-sidebar .user-progress ul {
    padding: 0;
    margin: 0;
}

.course-sidebar .user-progress li {
    margin-bottom: 5px;
}

.course-sidebar .recommended-courses h4 {
    font-size: 16px;
    margin-bottom: 10px;
}

.course-sidebar .recommended-courses ul {
    padding: 0;
    margin: 0;
}

.course-sidebar .recommended-courses li {
    margin-bottom: 5px;
}

.course-sidebar .social-sharing h4 {
    font-size: 16px;
    margin-bottom: 10px;
}

.course-sidebar .social-sharing a {
    display: block;
    margin-bottom: 5px;
    color: #007bff;
    text-decoration: none;
}

.course-sidebar .social-sharing a:hover {
    text-decoration: underline;
}