Payment form goes here.
Integrate your payment provider (Stripe, Square, PayPal, etc.) by replacing this section.
// Cart data available at:
window.checkoutData.items // [{variantId, quantity, title, price, image}, ...]
window.checkoutData.discount // discount code string
window.checkoutData.total // total in cents
window.checkoutData.currency // "USD"
// After successful payment:
window.completeCheckout({
transactionId: 'txn_abc123'
});
See DOCUMENTATION.md for full integration guide.