# ADR-012: Frontend Component Library and Design System

**Date**: 2025-12-12

**Status**: Proposed

## Context

The frontend is built with React, but there is no formal strategy for component reuse, styling consistency, or UI documentation. As more features are added, this can lead to a fragmented user experience, duplicated effort, and a codebase that is difficult to maintain.

## Decision

We will establish a formal Design System and Component Library. This will involve using a tool like **Storybook** to develop, document, and test UI components in isolation. It will establish clear guidelines for styling, theming (e.g., dark mode), and accessibility.

## Consequences

- **Positive**: Ensures a consistent and high-quality user interface. Accelerates frontend development by providing reusable, well-documented components. Improves maintainability and reduces technical debt.
- **Negative**: Requires an initial investment in setting up Storybook and migrating existing components. Adds a new dependency and a new workflow for frontend development.