A dark-themed mobile checkout screen (390x844) from a QR code restaurant ordering UI kit. It displays a table-dining banner for Ramenku, an order summary with ramen items and prices, a promo code field with an invalid code error state for SAVE50, payment details with subtotal and service charge, and a red 'Continue to Payment' CTA showing the total. Designed for food ordering and payment flows with error-state handling.