Tailwind CSS Fluid Typography Clamp Calculus

Act as a Responsive Typography Architect. Develop a comprehensive Tailwind CSS configuration strategy that mathematically integrates the native CSS `clamp()` function to achieve flawless, breakpoint-free fluid typography scaling. You must write the exact JavaScript code to extend the theme within `tailwind.config.js`, defining a custom text utility class where the font size scales linearly and seamlessly from a hard floor of [MIN_FONT_SIZE] up to a ceiling of [MAX_FONT_SIZE], strictly governed by the physical [VIEWPORT_RANGE] (e.g., 320px to 1280px). Provide the exact, complex algebraic formula (`calc()`) required for the preferred 'Viewport Width (vw)' value injected into the clamp function. Demonstrate exactly how to map this fluid scale across semantic HTML elements (H1 through H6) to completely abandon `@media` query breakpoints.