UI Reasoning: Translator App. Recommended Pattern: Feature-Rich Showcase + Interactive Demo. Style Priority: Flat Design + AI-Native UI. Color Mood: Global blue + neutral grey + language flag accent. Typography Mood: Bold + Clean + Sans-serif. Key Effects: Color shift hover + Fast 150ms transitions + No shadows. Decision Rules: {"if_ux_focused": "prioritize-clarity", "if_mobile": "optimize-touch-targets"}. Anti-Patterns: Complex shadows + 3D effects. Severity: HIGH.