Multi-step subscription form

A production-ready multi-step subscription form built as a full-stack Next.js and React microservice, handling plan selection, add-ons, and checkout in a guided flow. The app supports step navigation with the ability to review and edit previous inputs, and displays a clear order summary before confirmation. It includes robust client-side validation and server-side handling to ensure data integrity and a smooth user experience. Built with a responsive, mobile-first UI and clean component architecture, this service can be easily integrated into larger SaaS or billing platforms.