> For the complete documentation index, see [llms.txt](https://sonic-ai-works.gitbook.io/sonic-networks-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sonic-ai-works.gitbook.io/sonic-networks-docs/documentation/developers/frontend-and-design-system.md).

# Frontend & Design System

Developer-owned frontend architecture, design tokens, desktop/mobile implementation rules, components and documentation style standards.

This developer section owns **implementation-oriented UI architecture and design-system contracts**. User-facing product behavior remains under **Applications**; corporate visual identity remains under **Reference → Brand & UI System**.

## Boundaries

```
Applications        → product behavior / flows
Reference           → brand identity / stable visual rules
Frontend & Design   → implementation patterns / components / tokens
API Reference       → transport contracts
```

## Platforms

* **Desktop Web UI** — Next.js application shells, responsive desktop/tablet composition and shared components.
* **Mobile UI / Expo & React Native** — native navigation, safe areas, bottom sheets, PWA/native boundaries and shared semantics.
* **Style Guide Template** — how technical/product docs should be authored and verified.

Shared implementation must preserve accessibility, semantic status, 44px minimum targets, reduced motion, server-authoritative product truth and responsive reflow.


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