1. Install necessary dependencies including Tailwind CSS, @tailwindcss/vite, @types/node, and tw-animate-css.
2. Configure Vite to include the Tailwind CSS plugin.
3. Set up the four-step CSS architecture by defining CSS variables, mapping them to Tailwind utilities, and applying base styles.
4. Implement dark mode using the provided ThemeProvider component.
5. Configure the components.json file for shadcn/ui.
6. Test and verify the theme and dark mode functionality.