UI/UX Design --- When to Use This Skill Activate this skill when: - Building or designing web/mobile interfaces - Choosing colors, typography, or layout systems - Implementing responsive design (mobile-first) - Ensuring accessibility compliance (WCAG 2.2) - Setting up Shadcn/ui + Tailwind CSS projects - Creating micro-interactions and animations - Reviewing UI/UX decisions before coding --- Core Design Principles 1. Mobile-First Always - Start with 320px width (smallest phone) - Breakpoints: 576px (phone), 768px (tablet), 992px (laptop), 1200px (desktop) - Single-column default, expand only w…