Configures Tailwind v4 with shadcn/ui using a mandatory four-step CSS variable theming to enable automatic dark mode and prevent common errors.
Initial release: production-tested Tailwind v4 + shadcn/ui stack with mandatory four-step architecture, migration guidance, and error prevention. - Provides a complete setup for Tailwind v4 and shadcn/ui integration. - Introduces a required four-step theming system using CSS variables and @theme inline. - Offers migration instructions from Tailwind v3, including critical file and dependency changes. - Prevents 8 common setup and theme errors with clear rules, quick reference, and troubleshooting. - Includes production-ready templates and comprehensive documentation.