Cognition — Design System

light · modern · medium · tailwind · confidence 90% · deep decode

The full decoded design system for Cognition: color roles, type scale, spacing, radii and paste-ready DESIGN.md / Tailwind / CSS exports.

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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/cognition.

Tokens

Cognition's decoded design system: background #F7F6F5, text #000000, accent #FF0000, link #FF0000, primary #2200FF; type scale h1 36px / h2 20px / body 10px; 4px spacing base; 0px base radius. The single interactive/action color is #191919 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #191919 — the single interactive color; only on things you click or must notice, never large fills.
• accent, link are all #FF0000 — one role, not several (the action color).
• accent #FF0000 — accent for emphasis — keep it rare on the page.
• primary #2200FF — a brand color — but the call-to-action uses #191919, not this.

Typography

• Heading: Bureau Serif
• Body: International
• Mono: GeistMono
• h1: 36px
• h2: 20px
• body: 10px

Spacing

• base unit: 4px
• scale: 2px, 4px, 6px, 8px, 10px, 12px, 16px, 20px, 24px, 32px

Radii

• base: 0px
• button: 0px

Motion

Micro-interactions run at 200ms (dominant) with cubic-bezier(0.4, 0, 0.2, 1).

• durations: 200ms · 400ms · 300ms
• easings: cubic-bezier(0.4, 0, 0.2, 1)
• animated properties: opacity

Native design tokens

…and 47 more measured on the page.

Button states (measured)

• primary focus: outline 1px auto rgb(16, 16, 16)

Layout (measured)

• container max-width: 1440px
• common grid: 15 columns

Responsive (measured)

• breakpoints: 640px · 768px · 1024px
• mobile (390px): hero 24px · nav hamburger

Per-section tokens (4)

• Hero — light · bg #F8F6F5 · text #848483 · 1 col · left
• Logo Wall — light · bg #F4F2F0 · text #C2C4C5 · 3 col · split
• CTA / Sign-up — light · bg #F8F6F5 · text #616160 · 1 col · center
• Gallery / Showcase — light · bg #F8F6F5 · text #242526 · 1 col · left

Export: DESIGN.md

# Cognition — Design System

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

## Colors

| Role | Value |
|------|-------|
| bg | `#F7F6F5` |
| surface | `#E8E7E6` |
| border | `#D1D1D0` |
| text | `#000000` |
| text_muted | `#5D5D5D` |
| primary | `#2200FF` |
| accent | `#FF0000` |
| link | `#FF0000` |
| button_bg | `#191919` |
| button_text | `#F7F6F5` |

**Using these colors**

- **Action color** `#191919` — 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` are all `#FF0000` — one role, not several.
- **accent** `#FF0000` — accent for emphasis — keep it rare on the page.
- **primary** `#2200FF` — a brand color — but the call-to-action uses #191919, not this.
- **Page coverage** (full-page screenshot pixels): `#F7F6F5` 75.5% · `#1F3163` 10.5% · `#B3B2B5` 9.2% · `#E8E7E8` 4.8%

## Typography

- Heading: **Bureau Serif** _(free fallback: Newsreader)_
- Body: **International** _(free fallback: Newsreader)_
- Mono: **GeistMono** _(measured)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 36px / 400 · lh 40px · tracking -0.72px |
| h2 | 20px / 400 · lh 26px · tracking -0.2px |
| body | 15px / 400 · lh 23px |
| small | 12px / 400 · lh 16px · tracking -0.12px |

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

> **Fonts —** Bureau Serif may be proprietary — safe free fallback: Newsreader (Google Fonts). International may be proprietary — safe free fallback: Newsreader (Google Fonts).

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 2px, 4px, 6px, 8px, 10px, 12px, 16px, 20px, 24px, 32px — snap all gaps/padding to these
- section rhythm: 180px top/bottom padding per section (measured)

## Radius
- base: 0px
- button: 0px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#191919` / `#F7F6F5` | none | 0px | 0px 10px 1px 10px | 400 15px | none |
| secondary | `rgba(0, 0, 0, 0)` / `#000000` | 1px solid rgb(0, 0, 0) | 0px | 0px 8px 1px 8px | 400 15px | none |

**States (measured, not guessed)**

- primary focus: outline `1px auto rgb(16, 16, 16)`
- secondary hover: background `#000000` · color `#F7F6F5`

## Motion
- durations: 200ms (dominant) · 400ms · 300ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant)
- animated properties: opacity

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 |
|-------|-------|
| `--form-input-bg` | `#00000008` |
| `--form-input-bg-hover` | `#0000000d` |
| `--color-amber-400` | `lab(80.1641% 16.6016 99.2089)` |
| `--color-surface-alt` | `#f2f5fa` |
| `--color-orange-800` | `lab(37.1566% 46.6433 50.5562)` |
| `--color-neutral-600` | `lab(34.924% 0 0)` |
| `--color-purple-800` | `lab(30.6017% 56.7637 -64.4751)` |
| `--color-neutral-200` | `lab(90.952% 0 -.0000119209)` |
| `--color-text-secondary` | `#1919198f` |
| `--color-purple-100` | `lab(93.3333% 6.97437 -9.83434)` |
| `--color-white` | `#fff` |
| `--color-accent` | `#20f` |

_…and 45 more measured on the page._

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

## Layout (measured)
- container max 1440px · common grid: 15-col
- nav: 0px

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 0 | 1841 | 15 | — | 0/0 | — |
| 1254 | 370 | 15 | — | 0/48 | — |

## Responsive (measured)
- breakpoints: 640px · 768px · 1024px
- mobile (390px): hero 24px · body 16px · nav: hamburger

## 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/cognition

Export: Tailwind v4 (@theme)

@theme {
  /* action color #191919 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #F7F6F5;
  --color-surface: #E8E7E6;
  --color-border: #D1D1D0;
  --color-text: #000000;
  --color-text-muted: #5D5D5D;
  --color-primary: #2200FF;  /* a brand color — but the call-to-action uses #191919, not this. */
  --color-accent: #FF0000;  /* accent for emphasis — keep it rare on the page. */
  --color-link: #FF0000;  /* inline text links and link-styled controls. */
  --color-button-bg: #191919;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #F7F6F5;
  /* fonts: Bureau Serif may be proprietary — safe free fallback: Newsreader (Google Fonts). International may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "Bureau Serif", "Newsreader", Georgia, 'Times New Roman', serif;
  --font-body: "International", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "GeistMono", ui-monospace, monospace;
  /* measured weights: 400 — use these, not 400/600 */
  --text-hero: 36px; --font-weight-hero: 400; --leading-hero: 40px; --tracking-hero: -0.72px;
  --text-h2: 20px; --font-weight-h2: 400; --leading-h2: 26px; --tracking-h2: -0.2px;
  --text-body: 15px; --font-weight-body: 400; --leading-body: 23px;
  --text-small: 12px; --font-weight-small: 400; --leading-small: 16px; --tracking-small: -0.12px;
  --radius-base: 0px;
  --radius-button: 0px;
  --outline-focus: 1px auto rgb(16, 16, 16);  /* measured focus ring */
  --ease-brand: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 200ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 300ms;
  --duration-slow: 400ms;
  --section-y: 180px;  /* per-section vertical padding (measured) */
  --spacing: 4px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 2, 4, 6, 8, 10, 12, 16, 20, 24, 32px */
}

Export: CSS variables

:root {
  /* action color #191919 — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #F7F6F5;
  --surface: #E8E7E6;
  --border: #D1D1D0;
  --text: #000000;
  --text-muted: #5D5D5D;
  --primary: #2200FF;  /* a brand color — but the call-to-action uses #191919, not this. */
  --accent: #FF0000;  /* accent for emphasis — keep it rare on the page. */
  --link: #FF0000;  /* inline text links and link-styled controls. */
  --button-bg: #191919;  /* primary-button fill — the main call-to-action color. */
  --button-text: #F7F6F5;
  --font-heading: "Bureau Serif", "Newsreader", Georgia, 'Times New Roman', serif;
  --font-body: "International", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "GeistMono", ui-monospace, monospace;
  --text-hero: 36px; --weight-hero: 400; --leading-hero: 40px; --tracking-hero: -0.72px;
  --text-h2: 20px; --weight-h2: 400; --leading-h2: 26px; --tracking-h2: -0.2px;
  --text-body: 15px; --weight-body: 400; --leading-body: 23px;
  --text-small: 12px; --weight-small: 400; --leading-small: 16px; --tracking-small: -0.12px;
  --radius: 0px;
  --radius-button: 0px;
  --focus-ring: 1px auto rgb(16, 16, 16);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 200ms;
  --duration-base: 300ms;
  --duration-slow: 400ms;
  --section-y: 180px;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --form-input-bg: #00000008;
  --form-input-bg-hover: #0000000d;
  --color-amber-400: lab(80.1641% 16.6016 99.2089);
  --color-surface-alt: #f2f5fa;
  --color-orange-800: lab(37.1566% 46.6433 50.5562);
  --color-neutral-600: lab(34.924% 0 0);
  --color-purple-800: lab(30.6017% 56.7637 -64.4751);
  --color-neutral-200: lab(90.952% 0 -.0000119209);
  --color-text-secondary: #1919198f;
  --color-purple-100: lab(93.3333% 6.97437 -9.83434);
  --color-white: #fff;
  --color-accent: #20f;
}
/* fonts: Bureau Serif may be proprietary — safe free fallback: Newsreader (Google Fonts). International may be proprietary — safe free fallback: Newsreader (Google Fonts). */