Responsive checkout

The responsive checkout is a purchase flow that adapts to mobile, tablet, and desktop to reduce friction and maximize conversion. It optimizes visual hierarchy, font sizes and buttons, inline validation, input masks, and data autocomplete. On mobile, it prioritizes the appropriate keyboard (numeric for card), installment selector, and wallets. It also addresses accessibility (contrast, focus, screen readers) and performance (Core Web Vitals, LCP). Minimizing steps, errors, and time until approved payment improves the completion rate and the perception of security without sacrificing antifraud requirements.