UI Reasoning: Productivity Tool. Recommended Pattern: Interactive Demo + Feature-Rich. Style Priority: Flat Design + Micro-interactions. Color Mood: Clear hierarchy + Functional colors. Typography Mood: Clean + Efficient typography. Key Effects: Quick actions (150ms) + Task animations. Decision Rules: {"must_have": "keyboard-shortcuts", "if_collaboration": "add-real-time-cursors"}. Anti-Patterns: Complex onboarding + Slow performance. Severity: HIGH.