ui-dev

To build a responsive dark-mode UI component with shadcn/ui, use theme-variable-based colors and shadcn/ui primitives for consistent styling, semantic HTML, and mobile-first responsive behavior in React or Next.js.

Yes, refactoring large React components works by decomposing them into smaller files. This approach enforces a strict 300-line file limit to maintain readability while preserving accessible dark-theme styling and shadcn/ui conventions.

The best way to apply dark-theme styling in Next.js without hardcoded colors is using CSS tokens and theme variables. This ensures consistent design tokens across your application while maintaining accessibility and responsive layouts.

Yes, you can and should use existing UI primitives. The shadcn/ui-first workflow prioritizes selecting existing components before writing custom code, ensuring accessible, mobile-first presentation and consistent design tokens.

Your component architecture needs a 300-line file limit to ensure long-term maintainability. Decomposing large components into smaller, manageable files prevents bloated codebases while preserving responsive design and dark-theme styling conventions.

To ensure accessibility when creating forms and dashboard cards, use semantic HTML markup and shadcn/ui conventions. This approach natively integrates accessible interactions, loading states, and responsive layouts into your React components.