UI Reasoning: Calculator & Unit Converter. Recommended Pattern: Minimal & Direct. Style Priority: Neumorphism + Minimalism. Color Mood: Dark functional + orange operation keys + clear button hierarchy. Typography Mood: Professional + Clean hierarchy. Key Effects: Dual shadows (light+dark) + Soft press 150ms. Decision Rules: {"if_ux_focused": "prioritize-clarity", "if_mobile": "optimize-touch-targets"}. Anti-Patterns: Excessive decoration. Severity: HIGH.