body {
    background-color: #f4f6f9;
    font-family: 'Segoe UI', sans-serif;
}

.card {
    border-radius: 1rem;
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.1);
}

h3 {
    color: #007bff;
}

.btn-primary {
    background-color: #0069d9;
    border-color: #0062cc;
}

.table th {
    background-color: #007bff;
    color: white;
}