Coder — decoded design system

coder.com · light · professional · tailwind · deep decode — measured live

Coder's design system, decoded live by Mozaika: measured color roles, type scale, buttons with real hover/focus states, motion and the brand's own tokens.

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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/decode/coder.com.

Decoded design system

Coder's decoded design system: background #FFFFFF, text #0A0C0C, accent #0A0C0C, link #C6C6C6, primary #FF8067; type scale h1 68px / h2 56px / body 20px; 4px spacing base; 0px base radius. The single interactive/action color is #0A0C0C — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #0A0C0C — the single interactive color; only on things you click or must notice, never large fills.
• accent, button_bg are all #0A0C0C — one role, not several (the action color).
• accent #0A0C0C — 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 #FF8067 — a brand color — but the call-to-action uses #0A0C0C, not this.
• link #C6C6C6 — fails contrast on the background (~1.7:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).
• secondary #9EDFE9 — 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.

Typography

• Heading: Geist
• Body: LayGrotesk
• Mono: FT System Mono
• h1: 68px
• h2: 56px
• body: 20px

Spacing

• base unit: 4px
• scale: 4px, 7px, 8px, 10px, 11px, 12px, 14px, 20px, 24px, 32px

Radii

• base: 0px
• button: 3.35544e+07px

Shadows (elevation)

• card: rgba(0, 0, 0, 0.1) 0px 2px 10px 0px

Motion

Micro-interactions run at 300ms (dominant) with cubic-bezier(0.4, 0, 0.2, 1).

• durations: 300ms · 400ms · 200ms
• easings: cubic-bezier(0.4, 0, 0.2, 1) · ease
• animated properties: scale, background-color, transform, translate

Native design tokens

…and 110 more measured on the page.

Button states (measured)

• primary hover: background oklab(0.946192 0 0)
• primary focus: outline 1px auto oklab(0.705 0.00415142 -0.0144141 / 0.5)

Layout (measured)

• container max-width: 1376px
• nav: 80px fixed
• common grid: 2 columns

Motion choreography (measured)

Load order: div.osano-cm-info-dialog__in → div.osano-cm-window__dialog → button.osano-cm-dialog__close → button.osano-cm-dialog__close → button.osano-cm-dialog__close → button.osano-cm-dialog__close

Scroll reveal: 2 elements rest at opacity 0, animate in over 0.3s cubic-bezier(0.4, 0, 0.2, 1).

Stagger: div ×4 — 50ms apart.

Responsive (measured)

• breakpoints: 640px · 768px · 1024px · 1280px · 1520px · 1536px
• mobile (390px): hero 34px · nav hamburger

Install it

Drop this measured system into any shadcn/Tailwind project in one command:

npx shadcn add mozaika.design/r/decode/coder.com

registry item · or query it over MCP: get_design_system("Coder")

Export: DESIGN.md

# Coder — Design System

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

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#F0F0F0` |
| border | `#DADADA` |
| text | `#0A0C0C` |
| text_muted | `#676868` |
| primary | `#FF8067` |
| accent | `#0A0C0C` |
| link | `#C6C6C6` |
| secondary | `#9EDFE9` |
| button_bg | `#0A0C0C` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#0A0C0C` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `accent`, `button_bg` are all `#0A0C0C` — one role, not several (your action color).
- **accent** `#0A0C0C` — 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** `#FF8067` — a brand color — but the call-to-action uses #0A0C0C, not this.
- **link** `#C6C6C6` — fails contrast on the background (~1.7:1) — this is a dark UI color, NOT a readable link; use the text or action color for links (verify against the reference).
- **secondary** `#9EDFE9` — 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): `#D8C2EE` 52.8% · `#FFFFFF` 18.5% · `#4D4C4D` 12.6% · `#E6E3F8` 7.4%

## Typography

- Heading: **Geist**
- Body: **LayGrotesk** _(free fallback: Newsreader)_
- Mono: **FT System Mono**

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 68px / 500 · lh 71px · tracking -0.68px |
| h2 | 56px / 500 · lh 56px · tracking -0.56px |
| h3 | 52px / 500 · lh 55px · tracking -0.52px |
| body | 20px / 400 · lh 28px · tracking 0.4px |
| small | 18px / 400 · lh 25px · tracking 0.36px |

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

> **Fonts —** Geist — free, on Google. LayGrotesk may be proprietary — safe free fallback: Newsreader (Google Fonts).

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 4px, 7px, 8px, 10px, 11px, 12px, 14px, 20px, 24px, 32px — snap all gaps/padding to these
- section rhythm: 164px top/bottom padding per section (measured)

## Radius
- base: 0px
- button: 3.35544e+07px
- card: 4px
- pill: 9999px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `oklch(0.97 0 0)` / `oklch(0.15 0.0034 196.79)` | none | 3.35544e+07px | 14px 20px 14px 20px | 500 14px / 0.14px | none |
| secondary | `#F2EDFF` / `#000000` | 1px solid rgb(0, 0, 0) | 3.5px | 7px 10.5px 7px 10.5px | 700 14px | none |

**States (measured, not guessed)**

- primary hover: background `oklab(0.946192 0 0)`
- primary focus: outline `1px auto oklab(0.705 0.00415142 -0.0144141 / 0.5)`
- secondary hover: background `#DED9EB`
- transition: `scale 0.4s cubic-bezier(0.4, 0, 0.2, 1)`

## Shadows (elevation)
- card: `rgba(0, 0, 0, 0.1) 0px 2px 10px 0px`

## Motion
- durations: 300ms (dominant) · 400ms · 200ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant) · `ease`
- animated properties: scale, background-color, transform, translate

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 |
|-------|-------|
| `--background` | `oklch(100% 0 0)` |
| `--foreground` | `oklch(14.1% .005 285.823)` |
| `--card` | `oklch(100% 0 0)` |
| `--card-foreground` | `oklch(14.1% .005 285.823)` |
| `--popover` | `oklch(100% 0 0)` |
| `--popover-foreground` | `oklch(14.1% .005 285.823)` |
| `--primary` | `oklch(21% .006 285.885)` |
| `--primary-foreground` | `oklch(98.5% 0 0)` |
| `--secondary` | `oklch(96.7% .001 286.375)` |
| `--secondary-foreground` | `oklch(21% .006 285.885)` |
| `--muted` | `oklch(96.7% .001 286.375)` |
| `--muted-foreground` | `oklch(55.2% .016 285.938)` |

_…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 1376px · common grid: 2-col
- nav: 80px fixed · bg oklch(1 0 0)

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 0 | 1170 | — | — | 96/0 | — |
| 1170 | 1146 | 2 | 10 | 164/0 | — |

## Motion choreography (measured)
Load order: `div.osano-cm-info-dialog__in` @0ms → `div.osano-cm-window__dialog` @169ms → `button.osano-cm-dialog__close` @169ms → `button.osano-cm-dialog__close` @169ms → `button.osano-cm-dialog__close` @169ms → `button.osano-cm-dialog__close` @169ms
- stagger: `div` ×4 — 50ms apart
- scroll reveal: 2 elements rest at opacity 0, animate in over 0.3s cubic-bezier(0.4, 0, 0.2, 1) (2 revealed during the drive).

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

## Responsive (measured)
- breakpoints: 640px · 768px · 1024px · 1280px · 1520px · 1536px
- mobile (390px): hero 34px · 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.

An automated reading of Coder's publicly-visible CSS (colors, fonts, spacing, motion) — not affiliated with coder.com. No screenshots stored. Removal requests: hello@mozaika.design.