What problem does it solve? Designs built for one context often break or feel wrong on other devices, input methods, or platforms, requiring systematic rethinking rather than simple scaling. ## Core Features & Use Cases - Context Assessment: Identifies source assumptions and target constraints across device, input method, screen size, connection speed, and usage context. - Platform-Specific Strategies: Provides concrete layout, interaction, content, and navigation strategies for mobile, tablet, desktop, print, and email adaptations. - Implementation Guidance: Covers responsive breakpoints, CSS Grid/Flexbox reflow, container queries, touch target sizing, and progressive enhancement. - Use Case: A desktop web dashboard needs a mobile version. The skill guides converting multi-column layouts to single-column stacking, replacing hover interactions with 44x44px touch targets, and moving navigation to a bottom bar. ## Quick Start Adapt the checkout flow design for mobile devices with touch input and slow network conditions.