/* Main styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}

/* Navbar styles */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

/* Card styles */
.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,.075);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

/* Sidebar styles */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 48px 0 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
}

.sidebar .nav-link {
    color: #adb5bd;
    padding: 0.5rem 1rem;
    margin-bottom: 0.2rem;
}

.sidebar .nav-link.active {
    color: #fff;
    background-color: rgba(255,255,255,.1);
}

.sidebar .nav-link:hover {
    color: #fff;
}

/* Main content styles */
main {
    padding-top: 1.5rem;
}

/* Post content styles */
.post-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1rem auto;
}

/* Comment styles */
.comment-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

/* Footer styles */
footer {
    height: 40px;
    display: flex;
    align-items: center;
}

footer .container {
    width: 100%;
}

footer a {
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive adjustments */
@media (max-width: 767.98px) {
    .sidebar {
        position: static;
        height: auto;
        padding: 0;
    }
    
    main {
        padding-top: 1rem;
    }
}