UI Reasoning: Running & Cycling GPS. Recommended Pattern: Feature-Rich Showcase + Social Proof. Style Priority: Dark Mode (OLED) + Vibrant & Block-based. Color Mood: Energetic orange + map accent + pace zones (green/yellow/red). Typography Mood: High contrast + Light on dark. Key Effects: Subtle glow + Neon accents + High contrast. Decision Rules: {"if_light_mode_needed": "provide-theme-toggle", "if_trust_needed": "add-testimonials"}. Anti-Patterns: Pure white backgrounds + Muted colors + Low energy. Severity: HIGH.