MozaikaDesign system

Checkout.com — Design System

dark · professional · medium · custom · confidence 92% · deep decode

Checkout.com commissioned a semi-mono Apercu and runs it at 80px/700 in white on black for full-bleed statements — PERFORMANCE as a marquee, not a metric. Inter handles the 16px substance, white 24px-radius pills punch through the dark, and 3D payment ribbons orbit the type; enterprise payments styled like a motorsport livery.

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/checkout-com.

Tokens

Checkout.com's decoded design system: background #000000, text #ECECEE, accent #186AFF, link #BBFF00, primary #186AFF; type scale h1 90px / h2 90px / body 12px; 4px spacing base; 10px base radius. The single interactive/action color is #186AFF — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#000000
surface#0E0E0E
border#232323
text#ECECEE
text_muted#929293
primary#186AFF
accent#186AFF
link#BBFF00
secondary#0C1142
button_bg#186AFF
button_text#FFFFFF

Using these colors

Typography

Spacing

Radii

Shadows (elevation)

Motion

Micro-interactions run at 300ms (dominant) with ease.

Native design tokens

TokenValue
--component-library-checkout-x-flowninja-2026_theme---color--surface--bkg-elevated-1#eeeff1
--component-library-checkout-x-flowninja-2026_theme---color--surface--bkg-main-0#fff
--component-library-checkout-x-flowninja-2026_button-style---border#186aff
--component-library-checkout-x-flowninja-2026_button-style---background#186aff
--component-library-checkout-x-flowninja-2026_button-style---text#fff
--component-library-checkout-x-flowninja-2026_button-style---border-hover#0055d4
--component-library-checkout-x-flowninja-2026_button-style---background-hover#0055d4
--component-library-checkout-x-flowninja-2026_button-style---text-hover#fff
--component-library-checkout-x-flowninja-2026_colors---color--primary--neutrals--800#363636
--component-library-checkout-x-flowninja-2026_colors---color--primary--neutrals--1000#181818

…and 62 more measured on the page.

Button states (measured)

Layout (measured)

Motion choreography (measured)

Load order: div.swiper-slide×9 → div.swiper-slide×27 → img.new-announcement-banner-a.rb-25-branda.rb-25-branddiv.swiper-slide×24

Overlay recipe (measured)

dialog panel: rgba(0, 0, 0, 0) · radius 0px

Responsive (measured)

Per-section tokens (13)

Export: DESIGN.md

# Checkout.com — Design System

> dark, professional, medium, custom — deep decode (measured live)

Checkout.com commissioned a semi-mono Apercu and runs it at 80px/700 in white on black for full-bleed statements — PERFORMANCE as a marquee, not a metric. Inter handles the 16px substance, white 24px-radius pills punch through the dark, and 3D payment ribbons orbit the type; enterprise payments styled like a motorsport livery.

## Colors

| Role | Value |
|------|-------|
| bg | `#000000` |
| surface | `#0E0E0E` |
| border | `#232323` |
| text | `#ECECEE` |
| text_muted | `#929293` |
| primary | `#186AFF` |
| accent | `#186AFF` |
| link | `#BBFF00` |
| secondary | `#0C1142` |
| button_bg | `#186AFF` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#186AFF` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `primary`, `accent`, `button_bg` are all `#186AFF` — one role, not several (your action color).
- **accent** `#186AFF` — 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** `#BBFF00` — inline text links and link-styled controls.
- **secondary** `#0C1142` — 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): `#000000` 82.5% · `#FFFFFF` 11.2% · `#B3B7BE` 2.5% · `#344E7D` 1.7%

## Typography

- Heading: **Inter**
- Body: **Inter**
- Mono: **Checkout Apercu SemiMono**

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 200px / 700 · lh 200px |
| h2 | 80px / 700 · lh 72px |
| h3 | 48px / 700 · lh 43px · tracking -1.92px |
| body | 16px / 400 · lh 24px |
| small | 14px / 700 · lh 11px · tracking 1.68px |
| eyebrow | 14px / 700 · tracking 1.68px |

- Weight ladder: 300 · 400 · 500 · 600 · 700 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** Inter — free, on Google.

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 4px, 8px, 10px, 12px, 16px, 20px, 24px, 32px, 40px, 64px — snap all gaps/padding to these
- section rhythm: 80px top/bottom padding per section (measured)

## Radius
- base: 10px
- button: 6px
- card: 8px
- sharp: 2px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#186AFF` / `#FFFFFF` | none | 6px | 12px 24px 12px 24px | 500 14px | none |
| secondary | `rgba(255, 255, 255, 0)` / `#FFFFFF` | 1px solid rgb(255, 255, 255) | 6px | 11px 23px 11px 23px | 500 14px | none |

**States (measured, not guessed)**

- primary hover: background `#1B5DD6`
- primary focus: outline `1px auto rgb(16, 16, 16)`
- transition: `background-color 0.3s cubic-bezier(0.23, 1, 0.32, 1)`

## Shadows (elevation)
- card: `rgba(0, 0, 0, 0.2) 0px 0px 18px 0px`

## Motion
- durations: 300ms (dominant) · 200ms · 250ms
- easings: `ease` (dominant) · `cubic-bezier(0.23, 1, 0.32, 1)`
- animated properties: color, background-color, opacity, max-height

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 |
|-------|-------|
| `--component-library-checkout-x-flowninja-2026_theme---color--surface--bkg-elevated-1` | `#eeeff1` |
| `--component-library-checkout-x-flowninja-2026_theme---color--surface--bkg-main-0` | `#fff` |
| `--component-library-checkout-x-flowninja-2026_button-style---border` | `#186aff` |
| `--component-library-checkout-x-flowninja-2026_button-style---background` | `#186aff` |
| `--component-library-checkout-x-flowninja-2026_button-style---text` | `#fff` |
| `--component-library-checkout-x-flowninja-2026_button-style---border-hover` | `#0055d4` |
| `--component-library-checkout-x-flowninja-2026_button-style---background-hover` | `#0055d4` |
| `--component-library-checkout-x-flowninja-2026_button-style---text-hover` | `#fff` |
| `--component-library-checkout-x-flowninja-2026_colors---color--primary--neutrals--800` | `#363636` |
| `--component-library-checkout-x-flowninja-2026_colors---color--primary--neutrals--1000` | `#181818` |
| `--component-library-checkout-x-flowninja-2026_colors---color--primary--neutrals--100` | `#fff` |
| `--component-library-checkout-x-flowninja-2026_colors---color--primary--neutrals--1100` | `#000` |

_…and 60 more measured on the page._

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

## Layout (measured)
- container max 1328px · common grid: 12-col
- nav: 126px sticky

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 80 | 900 | — | — | 0/0 | — |
| 980 | 1362 | 12 | 40 | 120/120 | — |
| 2342 | 1018 | 12 | 40 | 80/80 | — |
| 3360 | 682 | 12 | 40 | 80/80 | — |
| 4042 | 1256 | — | — | 120/80 | — |
| 4162 | 1056 | 2 | — | 0/0 | 68/32 |

## Motion choreography (measured)
Load order: `div.swiper-slide`×9 @0ms → `div.swiper-slide`×27 @0ms → `img.new-announcement-banner-` @239ms → `a.rb-25-brand` @239ms → `a.rb-25-brand` @239ms → `div.swiper-slide`×24 @239ms
- overlay dialog (auto-opened): panel rgba(0, 0, 0, 0) · r 0px

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

## Responsive (measured)
- breakpoints: 375px · 400px · 414px · 480px · 677px · 768px
- mobile (390px): hero 40px · 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/checkout-com

Export: Tailwind v4 (@theme)

@theme {
  /* action color #186AFF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #000000;
  --color-surface: #0E0E0E;
  --color-border: #232323;
  --color-text: #ECECEE;
  --color-text-muted: #929293;
  --color-primary: #186AFF;  /* primary brand / action color. */
  --color-accent: #186AFF;  /* 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: #BBFF00;  /* inline text links and link-styled controls. */
  --color-secondary: #0C1142;  /* 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: #186AFF;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: Inter — free, on Google. */
  --font-heading: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "Checkout Apercu SemiMono", ui-monospace, monospace;
  /* measured weights: 300, 400, 500, 600, 700 — use these, not 400/600 */
  --text-hero: 200px; --font-weight-hero: 700; --leading-hero: 200px;
  --text-h2: 80px; --font-weight-h2: 700; --leading-h2: 72px;
  --text-h3: 48px; --font-weight-h3: 700; --leading-h3: 43px; --tracking-h3: -1.92px;
  --text-body: 16px; --font-weight-body: 400; --leading-body: 24px;
  --text-small: 14px; --font-weight-small: 700; --leading-small: 11px; --tracking-small: 1.68px;
  --text-eyebrow: 14px; --font-weight-eyebrow: 700; --tracking-eyebrow: 1.68px;
  --radius-base: 10px;
  --radius-button: 6px;
  --radius-card: 8px;
  --radius-sharp: 2px;
  --shadow-card: rgba(0, 0, 0, 0.2) 0px 0px 18px 0px;
  --color-btn-hover: #1B5DD6;  /* measured primary hover fill */
  --outline-focus: 1px auto rgb(16, 16, 16);  /* measured focus ring */
  --ease-brand: ease;
  --duration-fast: 200ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 250ms;
  --duration-slow: 300ms;
  --section-y: 80px;  /* per-section vertical padding (measured) */
  --spacing: 4px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 4, 8, 10, 12, 16, 20, 24, 32, 40, 64px */
}

Export: CSS variables

:root {
  /* action color #186AFF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #000000;
  --surface: #0E0E0E;
  --border: #232323;
  --text: #ECECEE;
  --text-muted: #929293;
  --primary: #186AFF;  /* primary brand / action color. */
  --accent: #186AFF;  /* 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: #BBFF00;  /* inline text links and link-styled controls. */
  --secondary: #0C1142;  /* 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: #186AFF;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "Checkout Apercu SemiMono", ui-monospace, monospace;
  --text-hero: 200px; --weight-hero: 700; --leading-hero: 200px;
  --text-h2: 80px; --weight-h2: 700; --leading-h2: 72px;
  --text-h3: 48px; --weight-h3: 700; --leading-h3: 43px; --tracking-h3: -1.92px;
  --text-body: 16px; --weight-body: 400; --leading-body: 24px;
  --text-small: 14px; --weight-small: 700; --leading-small: 11px; --tracking-small: 1.68px;
  --text-eyebrow: 14px; --weight-eyebrow: 700; --tracking-eyebrow: 1.68px;
  --radius: 10px;
  --radius-button: 6px;
  --radius-card: 8px;
  --radius-sharp: 2px;
  --shadow-card: rgba(0, 0, 0, 0.2) 0px 0px 18px 0px;
  --btn-bg-hover: #1B5DD6;
  --focus-ring: 1px auto rgb(16, 16, 16);
  --ease: ease;
  --duration-fast: 200ms;
  --duration-base: 250ms;
  --duration-slow: 300ms;
  --section-y: 80px;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --component-library-checkout-x-flowninja-2026_theme---color--surface--bkg-elevated-1: #eeeff1;
  --component-library-checkout-x-flowninja-2026_theme---color--surface--bkg-main-0: #fff;
  --component-library-checkout-x-flowninja-2026_button-style---border: #186aff;
  --component-library-checkout-x-flowninja-2026_button-style---background: #186aff;
  --component-library-checkout-x-flowninja-2026_button-style---text: #fff;
  --component-library-checkout-x-flowninja-2026_button-style---border-hover: #0055d4;
  --component-library-checkout-x-flowninja-2026_button-style---background-hover: #0055d4;
  --component-library-checkout-x-flowninja-2026_button-style---text-hover: #fff;
  --component-library-checkout-x-flowninja-2026_colors---color--primary--neutrals--800: #363636;
  --component-library-checkout-x-flowninja-2026_colors---color--primary--neutrals--1000: #181818;
  --component-library-checkout-x-flowninja-2026_colors---color--primary--neutrals--100: #fff;
  --component-library-checkout-x-flowninja-2026_colors---color--primary--neutrals--1100: #000;
}
/* fonts: Inter — free, on Google. */