UI Reasoning: Personal Finance Tracker. Recommended Pattern: Interactive Product Demo. Style Priority: Glassmorphism + Dark Mode (OLED). Color Mood: Calm blue + success green + alert red + chart accents. Typography Mood: Modern + Clear hierarchy. Key Effects: Backdrop blur (10-20px) + Translucent overlays. Decision Rules: {"if_light_mode_needed": "provide-theme-toggle", "if_low_performance": "fallback-to-flat"}. Anti-Patterns: Pure white backgrounds. Severity: HIGH.