Progressive Web App Enhancement #10
Description
Transform LogiQuest into a full-featured Progressive Web App with offline gameplay capabilities, push notifications for daily challenges, and native app-like experience across all devices. Implement service workers for caching puzzle content, background sync for achievement uploads when connection is restored, and local storage management for game state. Add install prompts, splash screens, and proper manifest configuration. Include offline indicators, sync status displays, and graceful degradation when blockchain features aren't available offline. Ensure the PWA maintains performance benchmarks and passes Lighthouse audits.
Labels: enhancement, pwa, offline, performance, frontend, mobile