body {
    background-color: #f5f5f5;
}

.card {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.navbar-brand {
    font-weight: bold;
}

.table-responsive {
    max-height: 600px;
    overflow-y: auto;
}

.badge {
    font-size: 0.9em;
}