body {
    background-color: #f8f9fa;
}

.sidebar {
    min-height: 100vh;
}

.sidebar .nav-link {
    font-size: 15px;
}

.sidebar .nav-link:hover {
    background-color: #495057;
    border-radius: 5px;
}

main h1 {
    font-size: 28px;
    font-weight: bold;
}