.billing-section {
    margin: 20px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.billing-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.billing-table th, .billing-table td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

.billing-table th {
    background-color: #f4f4f4;
}

.total-row {
    font-weight: bold;
    background-color: #f9f9f9;
}

.button-container {
    margin-top: 20px;
}