System 04 · Enterprise Accessibility
Mobile, Tablet & Desktop Customer Loyalty PWA
Business Problem
European retail and e-commerce enterprises require omnichannel customer loyalty engines that strictly satisfy the newly enforced European Accessibility Act (EAA 2025), GDPR zero-tracking mandates, and reliable offline operation.
System Architecture
React 19 + Vite Progressive Web App with offline Workbox caching, responsive device token systems (Thumb-zone mobile tabbar, adaptive tablet grid, desktop sticky header), zero external font CDNs (Schrems II safe), and strict Content-Security-Policy.
Engineering Highlights
Custom useFocusTrap modal keyboard management, GDPR Article 15/20 data portability JSON download, Article 17 right-to-erasure account purge, and instant German DDG § 5 Impressum navigation.
Tangible Business ROI
Pre-certified for European enterprise procurement without risking regulatory fines or accessibility exclusion liabilities.