xshna.css (eXpressive Style & Hyper-adaptive Native Architecture) is a next-generation, open-source CSS framework designed to redefine how modern user interfaces are built and experienced. Rather than being just another collection of utility classes or pre-styled components, xshna.css is a complete design and architecture system that merges expressive aesthetics with hyper-adaptive behavior. It enables developers and designers to craft interfaces that are visually rich, performance-optimized, and naturally responsive across devices and contexts. At its core, xshna.css focuses on mobile-first, accessibility-driven, and modular design, ensuring that every interface starts with clarity, usability, and scalability in mind. The framework provides a hybrid approach that blends semantic styling with utility-based flexibility, allowing teams to write clean, readable markup while retaining fine-grained control over layout, spacing, typography, motion, and theming. Built-in support for modern U...