UI Reasoning: Event Management. Recommended Pattern: Hero-Centric + Feature-Rich. Style Priority: Vibrant & Block-based + Motion-Driven. Color Mood: Event theme colors + Excitement accents. Typography Mood: Bold + Engaging typography. Key Effects: Countdown timer + Registration flow. Decision Rules: {"must_have": "registration", "must_have": "agenda-display"}. Anti-Patterns: Confusing registration + No countdown. Severity: HIGH.