body {
    background-color: #f8f9fa;
    font-family: 'Arial', sans-serif;
}

h2 {
    color: #343a40;
}

.table {
    margin-top: 20px;
    border: 1px solid #dee2e6;
    border-radius: 5px;
}

.table th, .table td {
    vertical-align: middle;
}

.table-responsive {
    margin-bottom: 20px;
}

button {
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    h2 {
        font-size: 1.5em;
    }
}

@media (max-width: 480px) {
    .table th, .table td {
        font-size: 0.875em;
        padding: 0.5rem;
    }
}