What is styling-system?
Load PROACTIVELY when task involves CSS architecture, theming, or visual design systems. Use when user says "set up Tailwind", "add dark mode", "create a design system", "make it responsive", or "configure the theme". Covers Tailwind configuration and custom plugins, design token systems, responsive breakpoint strategies, dark mode implementation, component variant patterns (CVA/class-variance-authority), CSS-in-JS alternatives, and animation patterns. Source: mgd34msu/goodvibes-plugin.