---
name: Modern Treasury
description: "A prime example of clean, technical design language in modern fintech."
version: alpha

colors:
  background: "#FFFFFF"
  primary: "#151515"
  secondary: "rgba(21, 21, 21, 0.8)"
  tertiary: "#29735C"
  neutral: "rgba(0, 0, 0, 0.5)"
  bg-soft: "#F8F5F4"
  bg-quiet: "#F0F8F9"
  muted-soft: "rgba(21, 21, 21, 0.8)"
  line: "rgba(21, 21, 21, 0.8)"

typography:
  display:
    fontFamily: grotesque-sans
    fontSize: 48px
    lineHeight: 1.0
    fontWeight: 500
    letterSpacing: "-1px"
  h2:
    fontFamily: humanist-sans
    fontSize: 32px
    lineHeight: 1.2
    fontWeight: 400
    letterSpacing: "0px"
  body:
    fontFamily: humanist-sans
    fontSize: 16px
    lineHeight: 1.5
    fontWeight: 400
    letterSpacing: "0px"
  caption:
    fontFamily: humanist-sans
    fontSize: 14px
    lineHeight: 1.5
    fontWeight: 400
    letterSpacing: "0px"

rounded:
  sm: 4px
  md: 8px
  lg: 12px
  pill: 999px

spacing:
  xs: 4px
  sm: 8px
  md: 16px
  lg: 24px
  xl: 32px
  2xl: 48px
  3xl: 64px

---

## Overview

Payment orchestration API for developers.

*A clean architectural blueprint for money movement.*

## Colors

High-contrast neutrals with a single trustworthy green accent.

- **Background (`#FFFFFF`)** — uses `bg` token
- **Primary text (`#151515`)** — uses `ink` token
- **Secondary text (`rgba(21, 21, 21, 0.8)`)** — uses `ink-soft` token
- **Accent (`#29735C`)** — uses `accent` token
- **Muted (`rgba(0, 0, 0, 0.5)`)** — uses `muted` token
- **Borders (`rgba(21, 21, 21, 0.8)`)** — uses `line` token

## Typography

- **Display:** grotesque-sans
- **Body:** humanist-sans
- **Mono:** monospace

## Layout

Centered content with a maximum width of 680px for text blocks.

*Rhythm:* 4px grid

## Elevation & Depth

- inset 0 0 0 1px rgb(21, 21, 21)
- 0 20px 25px -5px lab(0 0 0 / 0.04)
- 0 4px 6px -1px rgba(0, 0, 0, 0.1)
- Borders: 1px solid rgba(21, 21, 21, 0.8)

## Shapes

- `sm`: 4px
- `md`: 8px
- `lg`: 12px
- `pill`: 999px

## Components

- **button:** Rectangular with small radius, using solid dark backgrounds with light text or bordered outlines.
- **card:** Solid color blocks with subtle padding and rounded corners.
- **chip:** Small rectangular labels with monospace text and light backgrounds.
- **input:** Clean rectangular fields with subtle borders.
- **hero:** Centered large-scale typography with a clear call to action.

## Do's and Don'ts

**Don't:**
- don't use soft, rounded 'friendly' shapes — screenshot shows sharp, rectangular UI components
- don't use primary colors like bright red or blue — screenshot shows a restrained palette of black, white, and green
- don't use decorative serif fonts — screenshot shows clean, modern sans-serif typography
- don't use busy, multi-colored gradients — screenshot shows solid color blocks and simple grid backgrounds
- don't use playful or cartoonish illustrations — screenshot shows technical diagrams and clean data visualizations
- don't use excessive drop shadows — screenshot shows flat surfaces with minimal depth

---

## System Prompt (paste into AI agent)

```
Modern Treasury is a premium Fintech SaaS platform for developers, featuring a clean, professional interface. The design uses a stark palette of white and near-black, anchored by a specific brand green (#29735C). Typography is strictly sans-serif, prioritizing legibility and hierarchy. Critical constraints: Avoid playful shapes, avoid primary colors, avoid decorative serifs, avoid busy gradients, avoid cartoonish illustrations, avoid excessive shadows. Focus on technical clarity and efficiency.
```