harden

Systematically strengthen interfaces against text overflow, internationalization, errors, and real-world edge cases. Strengthen interfaces against edge cases, errors, internationalization issues, and real-world usage scenarios that break idealized designs. Identify weaknesses and edge cases: Test with extreme inputs : Test error scenarios : Test internationalization : CRITICAL : Designs that only work with perfect data aren't production-ready. Harden against reality. Systematically improve resilience: Long text handling : Flex/Grid overflow : Responsive text sizing : Text expansion : RTL (Right-to-Left) support : Character set support : Date/Time formatting : Pluralization : Network errors : Form validation errors : API errors : Graceful degradation : Empty states : Loading states : Large datasets : Concurrent operations : Permission states : Browser compatibility : Production-ready features work for first-time users, not just power users. Design the paths that get new users to value: Empty states : Every zero-data screen needs: Empty state types to handle: First-run experience : Get users to their "aha moment" as quickly as possible. Feature discovery : Teach features when users need them, not upfront. NEVER : Client-side validation : Server-side validation (always): Constraint handling : Keyboard navigation : Screen reader support : Motion sensitivity : High contrast mode :...