dt-design-system/README.md

# DT Design System

Shared design tokens, web CSS, and React Native components for the Dangerous Things product family.

## Packages

| Package                                                  | Description                                                                                                     |
| -------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- |
| [`@dangerousthings/tokens`](packages/tokens)             | Canonical design tokens (colors, typography, shape) defined in TypeScript and exported as CSS custom properties |
| [`@dangerousthings/web`](packages/web)                   | Web CSS themes — bevels, animations, forms, and component styles                                                |
| [`@dangerousthings/react`](packages/react)               | React web components wrapping @dangerousthings/web CSS                                                          |
| [`@dangerousthings/react-native`](packages/react-native) | React Native components built on React Native Paper                                                             |
| [`@dangerousthings/tailwind-preset`](packages/tailwind-preset) | Tailwind CSS v3 preset mapping DT tokens to Tailwind theme                                                |
| [`@dangerousthings/hex-background`](packages/hex-background) | 3D hexagon grid background using Three.js + React Three Fiber (web and React Native)                       |

## Brand Themes

Two brand themes ship out of the box:

- **DT** — neon cyberpunk aesthetic with beveled corners and glow effects (Tektur font)
- **Classic** — dark navy palette with magenta accents and standard border radius

## Getting Started

### Prerequisites

- Node.js >= 18
- npm >= 10

### Install & Build

```bash
npm install
npm run build        # builds all packages via Turbo
```

### Per-Package Builds

```bash
npm run build:tokens
npm run build:web
npm run build:react-native
```

## Usage

### Web (CSS)

```css
@import "@dangerousthings/web";                     /* base index */
@import "@dangerousthings/web/tokens/dt.css";       /* DT brand tokens */
@import "@dangerousthings/web/components/bevels.css";
```

### React (Web)

```tsx
import "@dangerousthings/web";
import { DTWebThemeProvider, DTButton, DTCard } from "@dangerousthings/react";

export default function App() {
  return (
    <DTWebThemeProvider brand="dt" theme="dark">
      <DTCard title="PRODUCT" variant="emphasis" progress={60}>
        <DTButton variant="normal" onClick={handleClick}>
          Scan NFC
        </DTButton>
      </DTCard>
    </DTWebThemeProvider>
  );
}
```

### React Native

```tsx
import { DTThemeProvider } from "@dangerousthings/react-native";
import { DTButton, DTCard } from "@dangerousthings/react-native";

export default function App() {
  return (
    <DTThemeProvider brand="dt">
      <DTCard>
        <DTButton mode="contained" onPress={() => {}}>
          Press Me
        </DTButton>
      </DTCard>
    </DTThemeProvider>
  );
}
```

### Tokens (JavaScript/TypeScript)

```ts
import { dt } from "@dangerousthings/tokens/brands/dt";
console.log(dt.color.brand.primary); // "#00ffff"
```

### Tailwind

```js
// tailwind.config.js
import dtPreset from "@dangerousthings/tailwind-preset";
export default {
  presets: [dtPreset],
  content: ["./src/**/*.{tsx,ts,html}"],
};
```

## Development

### Scripts

| Command             | Description                    |
| ------------------- | ------------------------------ |
| `npm run build`     | Build all packages (Turbo)     |
| `npm run clean`     | Remove all `dist/` directories |
| `npm run typecheck` | Run TypeScript type checking   |

### Release

This project uses [Changesets](https://github.com/changesets/changesets) for versioning.

```bash
npx changeset              # create a new changeset
npm run version-packages   # bump versions from pending changesets
npm run release            # build + publish to npm
```

## React Web Components

The `@dangerousthings/react` package provides React web components that wrap the CSS from `@dangerousthings/web`. The component API mirrors the React Native package for consistency:

DTAccordion, DTBadgeOverlay, DTButton, DTCard, DTCheckbox, DTChip, DTDrawer, DTFeatureLegend, DTGallery, DTHexagon, DTLabel, DTMediaFrame, DTMenu, DTMobileFilterOverlay, DTModal, DTProgressBar, DTQuantityStepper, DTRadioGroup, DTSearchInput, DTStaggerContainer, DTSwitch, DTTextInput

## React Native Components

DTAccordion, DTBadgeOverlay, DTButton, DTCard, DTCheckbox, DTChip, DTDrawer, DTFeatureLegend, DTGallery, DTHexagon, DTLabel, DTMediaFrame, DTMenu, DTMobileFilterOverlay, DTModal, DTProgressBar, DTQuantityStepper, DTRadioGroup, DTSearchInput, DTStaggerContainer, DTSwitch, DTTextInput

**Animation hooks:** `useScaleIn`, `usePulse`

## Web CSS Modules

- `bevels.css` — angular clip-path bevels, card modes, selected states, progress bars, badge overlays, interactive bevel buttons
- `forms-dt.css` — text inputs, checkboxes, radio buttons, switches, menu items, filter headers
- `animations.css` — entrance animations, stagger containers, transition utilities
- `scrollbar.css` — thin neon scrollbar styling
- `feature-legend.css` — product feature grid with rotated labels

## Project Structure

```
dt-design-system/
├── packages/
│   ├── tokens/          # Design token definitions + CSS generation
│   ├── web/             # CSS themes and components
│   ├── react/           # React web components
│   ├── react-native/    # React Native Paper components
│   ├── tailwind-preset/ # Tailwind CSS v3 preset
│   ├── hex-background/  # 3D hexagon grid (Three.js)
│   └── showcase/        # Demo apps (desktop + mobile)
├── turbo.json           # Turbo pipeline config
└── package.json         # Workspace root
```

## License

[MIT](LICENSE)