CSS Animations Skill Expert knowledge for pure CSS animations - lightweight, performant animations using CSS keyframes, transitions, and modern CSS features without JavaScript dependencies. When to Use Activate this skill when: - User wants lightweight animations without libraries - Need simple hover/focus state transitions - Building loading spinners or skeleton screens - Performance is critical and animation is simple - Animating pseudo-elements (::before, ::after) - Using Tailwind CSS animation utilities File Patterns - with definitions - or with animations - with Tailwind animation classe…