React 19 SPA Architecture — Strict Scoping with CSS Modules
Building a web application that showcases eight radically different design languages — from cyberpunk HUDs and brutalist typography to neumorphic soft interfaces and terminal consoles — poses a formidable architectural challenge. How do you permit extreme aesthetic diversity within a single React 19 single-page application without styles leaking, clashing, or degrading runtime performance?
Our solution relies on strict architectural isolation enforced through vanilla CSS Modules (`[Template].module.css`). By compiling scoped styles at build time and decoupling presentation templates from domain data, we achieve complete design freedom with zero runtime penalty.
Traditional global stylesheets or utility-first frameworks like Tailwind struggle when forced to accommodate wildly incompatible design rules in the same bundle. A global rule resetting button borders or modifying root typography for a brutalist layout will inevitably break the delicate bevels and soft shadows of a neumorphic layout.