body {
    background-color: #f4f7f9;
}
.navbar-dark {
    background-color: #4a4a4a;
}
.sidebar .nav-link {
    padding-left: 0;
    margin-bottom: 0.3rem;
    color: #555;
}
.sidebar .nav-link.active {
    font-weight: 600;
    color: #0d6efd;
    border-left: 3px solid #0dcaf0;
    padding-left: 0.65rem;
}
.post-meta {
    color: #999;
    font-size: 0.9rem;
}
.post-content {
    color: #444;
    font-size: 1rem;
    line-height: 1.6;
}
.sidebar .card {
    margin-bottom: 1rem;
}
.btn-readmore {
    background-color: #007b9e;
    border: none;
}
.btn-readmore:hover {
    background-color: #005f73;
}
.social-icons a {
    color: #ccc;
    font-size: 1.2rem;
    margin-left: 1rem;
}
.social-icons a:hover {
    color: #0d6efd;
}
@media (max-width: 767.98px) {
    .sidebar {
        margin-top: 2rem;
    }
}