UI Reasoning: Newsletter Platform. Recommended Pattern: Minimal + Conversion. Style Priority: Minimalism + Flat Design. Color Mood: Brand primary + Clean white + CTA. Typography Mood: Clean + Readable typography. Key Effects: Subscribe form + Archive reveals. Decision Rules: {"must_have": "subscribe-form", "must_have": "sample-content"}. Anti-Patterns: Complex signup + No preview. Severity: MEDIUM.