# Token Alignment Report: Design System ↔ Production

This documents how the Storybook design system tokens map to production's Tailwind config.

## Approach

- **Where tokens match** — production's naming and values adopted directly
- **Where Storybook adds tokens** — added alongside production's existing tokens
- **Where there's a conflict** — flagged below for review

## Colours

### Adopted from production (unchanged)

| Production token | Hex | Notes |
|---|---|---|
| `grey-1` | #f4f3ef | |
| `grey-2` | #D7E1E2 | Matches `sage-200` |
| `grey-3` | #b9c7c9 | Matches `sage-400` |
| `grey-4` | #4c5459 | Matches `sage-800` — default body text |
| `grey-5` | #4c5b6b | Matches `sage-700` |
| `grey-6` | #D9D9D9 | No design system equivalent |
| `grey-7` | #EEEEEE | No design system equivalent |
| `color-1` | #B0610F | Matches `brand-600` |
| `color-1H` | #9e6f42 | No exact DS match (between brand-600 & brand-500) |
| `color-2` | #DCC1A6 | Close to `brand-200` (#EBDAC8) — slightly warmer |
| `color-2H` | #d1b79e | No exact DS match |
| `color-3` | #BA834E | Matches `brand-500` |
| `color-4` | #D0A070 | Matches `brand-400` |
| `color-5` | #F4F3EF | Same as `grey-1` |
| `color-6` | #51301B | Matches `brand-900` |
| `action-orange` | #F89E53 | No DS equivalent — unique to production |
| `success-green` | #76B041 | Different from DS `green-500` (#4A8F4A) |
| `warning-red` | #A41623 | Different from DS `red-600` (#BC2F2F) |

### Design system palettes added alongside

Full 11-shade palettes: `brand`, `sage`, `neutral`, `red`, `amber`, `green`, `blue`

These are available as Tailwind classes: `bg-brand-500`, `text-sage-800`, etc.

### Flagged for review

| Issue | Detail |
|---|---|
| `color-2` vs `brand-200` | Production: #DCC1A6, DS: #EBDAC8. Close but not identical. Production has a slightly warmer/darker tint. |
| `color-1H` hover | Production: #9e6f42. No exact DS equivalent. Falls between brand-500 and brand-600. |
| `color-2H` hover | Production: #d1b79e. No exact DS equivalent. |
| `success-green` vs `green-500` | Production: #76B041 (lime-ish), DS: #4A8F4A (forest green). Visually different. |
| `warning-red` vs `red-600` | Production: #A41623 (dark crimson), DS: #BC2F2F (warmer red). Different hue and value. |
| `action-orange` | #F89E53 — exists only in production. No amber/orange equivalent in DS. |
| `grey-6`, `grey-7` | Exist only in production. Not mapped to DS neutral scale. |

## Typography

### Font families — aligned
| Production | Design system | Status |
|---|---|---|
| `font-sans` (Montserrat) | `fontFamily.body` | Aligned |
| `font-notoSerifSC` | `fontFamily.display` | Aligned |
| `font-arial` | — | Production only |

### Font sizes — mixed
Production has custom sizes (`xxs`, `1.5xl`, `2.15xl`, `2.3xl`, `3.3xl`) that map to specific Tailwind typography classes. Design system has its own scale (`2xs`–`4xl`). Both are included in the config.

### Typography classes
Production's `.tailwindcss-h1` through `.tailwindcss-h6` classes use hardcoded `#4C5459` text colour. Design system uses MUI Typography variants that reference tokens. Both can coexist — MUI components use the theme, Tailwind templates use the classes.

## Breakpoints — fully aligned

| Name | Value | Source |
|---|---|---|
| `xs` | 0px | Both (MUI default) |
| `sm` | 600px | Both (MUI default) |
| `md` | 960px | Both (MUI v4 default) |
| `lg` | 1280px | Both (MUI default) |
| `xl` | 1536px | Both (MUI v5+ default) |

## Spacing — compatible

Production's custom spacing (5px, 12px, 12.5px, 14px, 15px, 30px) is preserved as `padding` and `margin` extensions. Design system's 4px-base scale is available as standard Tailwind spacing utilities.

## Conclusion

The merged `tailwind.config.js` provides full backward compatibility with production's existing classes while adding the design system's semantic palettes. The flagged colour conflicts are minor and can be resolved when production adopts the design system tokens directly.