MozaikaDesign system

Modern Treasury — Design System

light · professional · medium · tailwind · confidence 92% · deep decode

Modern Treasury moves money in Neue Haas Grotesk: Display cut at 71px on a precise 450 weight ('Build Products That Move Money'), Text cut at 16px, JetBrains Mono for the ledger data, and near-square 2px-radius buttons. Payment-flow diagrams in banker's neutrals complete it — fintech infrastructure typeset like the Swiss ledger it wants to be.

Open in Mozaika →

This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/ds/modern-treasury.

Tokens

Modern Treasury's decoded design system: background #FFFFFF, text #151515, accent #BAE0CF, link #BAE0CF, primary #543B4E; type scale h1 71px / h2 47px / body 14px; 8px spacing base; 2px base radius. The single interactive/action color is #BAE0CF — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#FFFFFF
surface#F0F0F0
border#DBDBDB
text#151515
text_muted#6D6D6D
primary#543B4E
accent#BAE0CF
link#BAE0CF
secondary#0C221D
button_bg#BAE0CF
button_text#151515

Using these colors

Typography

Spacing

Radii

Motion

Micro-interactions run at 150ms (dominant) with cubic-bezier(0.4, 0, 0.2, 1).

Native design tokens

TokenValue
--color-brown-900#533d3b
--color-button-secondary-text#151515
--color-brown-700#7b5953
--color-form-input-disabled-text#7c7c7c
--color-alpha-white-600#fff9
--color-blue-700#2b5f73
--color-alpha-black-100#15151521
--color-text-dim#15151599
--color-button-primary-border#151515
--color-error-red-light#ff6b6b

…and 110 more measured on the page.

Layout (measured)

Motion choreography (measured)

Load order: button×2

Input (measured)

height 40px · radius 0px

Responsive (measured)

Per-section tokens (9)

Export: DESIGN.md

# Modern Treasury — Design System

> light, professional, medium, tailwind — deep decode (measured live)

Modern Treasury moves money in Neue Haas Grotesk: Display cut at 71px on a precise 450 weight ('Build Products That Move Money'), Text cut at 16px, JetBrains Mono for the ledger data, and near-square 2px-radius buttons. Payment-flow diagrams in banker's neutrals complete it — fintech infrastructure typeset like the Swiss ledger it wants to be.

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#F0F0F0` |
| border | `#DBDBDB` |
| text | `#151515` |
| text_muted | `#6D6D6D` |
| primary | `#543B4E` |
| accent | `#BAE0CF` |
| link | `#BAE0CF` |
| secondary | `#0C221D` |
| button_bg | `#BAE0CF` |
| button_text | `#151515` |

**Using these colors**

- **Action color** `#BAE0CF` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `accent`, `link`, `button_bg` are all `#BAE0CF` — one role, not several (your action color).
- **accent** `#BAE0CF` — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.
- **primary** `#543B4E` — a brand color — but the call-to-action uses #BAE0CF, not this.
- **secondary** `#0C221D` — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.
- **Page coverage** (full-page screenshot pixels): `#FFFFFF` 93.3% · `#D0D1D0` 2.5% · `#666867` 2.4% · `#EFEEEE` 1.8%

## Typography

- Heading: **mt-neue-text** _(free fallback: Newsreader)_
- Body: **mt-sans** _(free fallback: Newsreader)_
- Mono: **mt-mono** _(measured)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 71px / 450 · lh 78px |
| h2 | 47px / 450 · lh 59px |
| h3 | 32px / 400 · lh 40px |
| body | 16px / 360 · lh 24px |
| small | 14px / 330 · lh 21px |

- Weight ladder: 330 · 360 · 400 · 500 · 600 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** mt-neue-text may be proprietary — safe free fallback: Newsreader (Google Fonts). mt-sans may be proprietary — safe free fallback: Newsreader (Google Fonts).

## Spacing
- base unit: 8px (inferred from the measured scale)
- measured scale: 4px, 6px, 8px, 9px, 12px, 14px, 16px, 20px, 24px, 32px — snap all gaps/padding to these
- section rhythm: 60px top/bottom padding per section (measured)

## Radius
- base: 2px
- button: 2px
- card: 4px
- pill: 9999px
- sharp: 2px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `rgba(0, 0, 0, 0)` / `#151515` | none | 2px | 6px 12px 6px 12px | 600 14px | rgb(21, 21, 21) 0px 0px 0px 1px inset |
| secondary | `#151515` / `#FFFFFF` | none | 2px | 6px 12px 6px 12px | 600 14px | rgb(21, 21, 21) 0px 0px 0px 1px inset |

**States (measured, not guessed)**

- transition: `color 0.15s cubic-bezier(0.4, 0, 0.2, 1)`

## Motion
- durations: 150ms (dominant) · 200ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant)
- animated properties: color, background-color, border-color, outline-color

Micro-interactions use the dominant duration + easing; nothing on the page animates slower than the longest duration above — don't invent springier motion.

## Their own tokens (verbatim from :root)

| Token | Value |
|-------|-------|
| `--color-brown-900` | `#533d3b` |
| `--color-button-secondary-text` | `#151515` |
| `--color-brown-700` | `#7b5953` |
| `--color-form-input-disabled-text` | `#7c7c7c` |
| `--color-alpha-white-600` | `#fff9` |
| `--color-blue-700` | `#2b5f73` |
| `--color-alpha-black-100` | `#15151521` |
| `--color-text-dim` | `#15151599` |
| `--color-button-primary-border` | `#151515` |
| `--color-error-red-light` | `#ff6b6b` |
| `--color-mt-logo` | `#29735c` |
| `--color-alpha-white-400` | `#fff6` |

_…and 108 more measured on the page._

Prefer these names when extending their system — it's the brand's actual vocabulary.

## Layout (measured)
- container max 1200px · common grid: 2-col
- nav: 0px

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 65 | 773 | — | — | 90/0 | — |
| 838 | 287 | — | — | 60/60 | — |
| 1125 | 1202 | — | — | 60/60 | — |
| 2326 | 398 | 4 | 24 | 60/60 | — |
| 2724 | 265 | 3 | 48 | 60/60 | — |
| 2989 | 1173 | 2 | 48 | 60/60 | — |
| 4162 | 841 | — | — | 60/60 | — |

## Motion choreography (measured)
Load order: `button`×2 @0ms

Rebuild the timeline, not just the durations — order, delays and staggers above are the choreography.

## Components (measured)
- input: h 40px · r 0px · bg #FFFFFF · placeholder #151515
- card ×4: pad 24px 24px 24px 24px · r 8px · bg #F8F5F4
  - hover: font-weight `400` · letter-spacing `normal`
- link: rgba(21, 21, 21, 0.8) · underline

## Responsive (measured)
- breakpoints: 375px · 512px · 576px · 600px · 672px · 768px
- mobile (390px): hero 47px · body 16px · nav: inline

## How to apply
Paste the Tailwind `@theme` (or CSS variables) as your base, then build each
section to its spec — verify every color, radius, and font against these tokens.
Hover/focus states, shadows and motion timings above are measured from the live page — match them exactly, don't re-guess them.

---

> **Decoded with Mozaika** — measured live, not guessed. Full decoded design system + one-command install: mozaika.design/ds/modern-treasury

Export: Tailwind v4 (@theme)

@theme {
  /* action color #BAE0CF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #FFFFFF;
  --color-surface: #F0F0F0;
  --color-border: #DBDBDB;
  --color-text: #151515;
  --color-text-muted: #6D6D6D;
  --color-primary: #543B4E;  /* a brand color — but the call-to-action uses #BAE0CF, not this. */
  --color-accent: #BAE0CF;  /* THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed. */
  --color-link: #BAE0CF;  /* inline text links — shares the action color. */
  --color-secondary: #0C221D;  /* optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two. */
  --color-button-bg: #BAE0CF;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #151515;
  /* fonts: mt-neue-text may be proprietary — safe free fallback: Newsreader (Google Fonts). mt-sans may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "mt-neue-text", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "mt-sans", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "mt-mono", ui-monospace, monospace;
  /* measured weights: 330, 360, 400, 500, 600 — use these, not 400/600 */
  --text-hero: 71px; --font-weight-hero: 450; --leading-hero: 78px;
  --text-h2: 47px; --font-weight-h2: 450; --leading-h2: 59px;
  --text-h3: 32px; --font-weight-h3: 400; --leading-h3: 40px;
  --text-body: 16px; --font-weight-body: 360; --leading-body: 24px;
  --text-small: 14px; --font-weight-small: 330; --leading-small: 21px;
  --radius-base: 2px;
  --radius-button: 2px;
  --radius-card: 4px;
  --radius-pill: 9999px;
  --radius-sharp: 2px;
  --ease-brand: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 200ms;
  --section-y: 60px;  /* per-section vertical padding (measured) */
  --spacing: 8px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 4, 6, 8, 9, 12, 14, 16, 20, 24, 32px */
}

Export: CSS variables

:root {
  /* action color #BAE0CF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #FFFFFF;
  --surface: #F0F0F0;
  --border: #DBDBDB;
  --text: #151515;
  --text-muted: #6D6D6D;
  --primary: #543B4E;  /* a brand color — but the call-to-action uses #BAE0CF, not this. */
  --accent: #BAE0CF;  /* THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed. */
  --link: #BAE0CF;  /* inline text links — shares the action color. */
  --secondary: #0C221D;  /* optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two. */
  --button-bg: #BAE0CF;  /* primary-button fill — the main call-to-action color. */
  --button-text: #151515;
  --font-heading: "mt-neue-text", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "mt-sans", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "mt-mono", ui-monospace, monospace;
  --text-hero: 71px; --weight-hero: 450; --leading-hero: 78px;
  --text-h2: 47px; --weight-h2: 450; --leading-h2: 59px;
  --text-h3: 32px; --weight-h3: 400; --leading-h3: 40px;
  --text-body: 16px; --weight-body: 360; --leading-body: 24px;
  --text-small: 14px; --weight-small: 330; --leading-small: 21px;
  --radius: 2px;
  --radius-button: 2px;
  --radius-card: 4px;
  --radius-pill: 9999px;
  --radius-sharp: 2px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-base: 200ms;
  --section-y: 60px;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --color-brown-900: #533d3b;
  --color-button-secondary-text: #151515;
  --color-brown-700: #7b5953;
  --color-form-input-disabled-text: #7c7c7c;
  --color-alpha-white-600: #fff9;
  --color-blue-700: #2b5f73;
  --color-alpha-black-100: #15151521;
  --color-text-dim: #15151599;
  --color-button-primary-border: #151515;
  --color-error-red-light: #ff6b6b;
  --color-mt-logo: #29735c;
  --color-alpha-white-400: #fff6;
}
/* fonts: mt-neue-text may be proprietary — safe free fallback: Newsreader (Google Fonts). mt-sans may be proprietary — safe free fallback: Newsreader (Google Fonts). */