.sidebar {
    min-height: calc(100vh - 60px);
    border-right: 1px solid #eee;
}

.nav-link {
    color: #333;
    padding: 0.5rem 1rem;
}

.nav-link:hover {
    background-color: #f8f8f8;
}

.nav-link.active {
    background-color: #f3f3f3;
}

.card {
    border: 1px solid #eee;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.card-header {
    background-color: #f8f8f8;
    border-bottom: 1px solid #eee;
    padding: 0.75rem 1rem;
}

.card-body {
    padding: 1rem;
}