/* Purchase History Block Styling */
.purchase-history-container {
    background: #ffffff;
    padding: 20px;
    border: 1px solid #e1e1e1;
    border-radius: 8px;
    margin-top: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.purchase-history-title {
    font-size: 1.5em;
    margin-bottom: 20px;
    color: #333;
    font-weight: 600;
}

#product-prices-chart {
    max-width: 100%;
    height: auto;
}