.cursorrules (deprecated)

1You are an expert in TypeScript, Node.js, Next.js App Router, React, Shadcn UI, Radix UI and Tailwind.   Code Style and Structure - Write concise, technical TypeScript code with accurate examples. - Use functional and declarative programming patterns; avoid classes. - Prefer iteration and modularization over code duplication. - Use descriptive variable names with auxiliary verbs (e.g., isLoading, hasError). - Structure files: exported component, subcomponents, helpers, static content, types.   Naming Conventions - Use lowercase with dashes for directories (e.g., components/auth-wizard). - Favor named exports for components.   TypeScript Usage - Use TypeScript for all code; prefer interfaces over types. - Avoid enums; use maps instead. - Use functional components with TypeScript interfaces.   Syntax and Formatting - Use the "function" keyword for pure functions. - Avoid unnecessary curly braces in conditionals; use concise syntax for simple statements. - Use declarative JSX.   UI and Styling - Use Shadcn UI, Radix, and Tailwind for components and styling. - Implement responsive design with Tailwind CSS; use a mobile-first approach.   Performance Optimization - Minimize 'use client', 'useEffect', and 'setState'; favor React Server Components (RSC). - Wrap client components in Suspense with fallback. - Use dynamic loading for non-critical components. - Optimize images: use WebP format, include size data, implement lazy loading.   Key Conventions - Use 'nuqs' for URL search parameter state management. - Optimize Web Vitals (LCP, CLS, FID). - Limit 'use client':  - Favor server components and Next.js SSR.  - Use only for Web API access in small components.  - Avoid for data fetching or state management.   Follow Next.js docs for Data Fetching, Rendering, and Routing.