body {
    font-family: Arial, sans-serif;
}
.navbar-brand {
    font-weight: bold;
}
.card {
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .navbar-brand {
        font-size: 18px;
    }
}

nav {
    background-color: #f8f9fa;
    border-right: 1px solid #ddd;
}
nav h4 {
    background-color: #007bff;
    color: white;
    padding: 10px;
    margin: 0;
}
nav ul {
    list-style-type: none;
    padding: 0;
}
nav ul li a {
    color: #007bff;
    text-decoration: none;
    padding: 10px 15px;
    display: block;
}
nav ul li a:hover {
    background-color: #e9ecef;
}