Evidence — decoded design system

Name: Evidence design system (live decode)
Creator: Mozaika
Keywords: design system, design tokens, Evidence, evidence.dev, light, tailwind

evidence.dev · light · professional · tailwind · deep decode — measured live

Evidence'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.

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/decode/evidence.dev.

Decoded design system

Evidence's decoded design system: background #FCFCFC, text #000000, accent #000000, link #4B5563, primary #111827; type scale h1 60px / h2 36px / body 12px; 4px spacing base; 4px base radius. The single interactive/action color is #000000 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Role	Value
bg	`#FCFCFC`
surface	`#ECECEC`
border	`#D6D6D6`
text	`#000000`
text_muted	`#5F5F5F`
primary	`#111827`
accent	`#000000`
link	`#4B5563`
secondary	`#1F2937`
button_bg	`#000000`
button_text	`#FFFFFF`

Using these colors

Action color #000000 — the single interactive color; only on things you click or must notice, never large fills.
accent, button_bg are all #000000 — one role, not several (the action color).
accent #000000 — 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 #111827 — a brand color — but the call-to-action uses #000000, not this.
link #4B5563 — inline text links and link-styled controls.
secondary #1F2937 — 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: Geist
h1: 60px
h2: 36px
body: 12px

Spacing

base unit: 4px
scale: 4px, 6px, 8px, 12px, 16px, 20px, 24px, 32px, 40px, 48px

Radii

base: 4px
button: 6px

Shadows (elevation)

subtle: rgb(255, 255, 255) 0px 0px 0px 0px, rgba(31, 41, 55, 0.1) 0px 0px 0px 1px, rgba(0, 0, 0, 0.05) 0px 1px 2px 0px
card: rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.05) 0px 1px 2px 0px

Motion

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

durations: 300ms · 200ms · 1000ms
easings: cubic-bezier(0.4, 0, 0.2, 1) · cubic-bezier(0, 0, 0.2, 1)
animated properties: color, background-color, border-color, text-decoration-color

Native design tokens

Token	Value
`--blue-100`	`#dbeafe`
`--blue-200`	`#bfdbfe`
`--blue-300`	`#93c5fd`
`--blue-400`	`#60a5fa`
`--blue-500`	`#3b82f6`
`--blue-600`	`#2563eb`
`--blue-700`	`#1d4ed8`
`--blue-800`	`#1e40af`
`--blue-900`	`#1e3a8a`
`--green-100`	`#dcfce7`

…and 40 more measured on the page.

Button states (measured)

primary hover: background #374151
primary focus: outline 1px auto rgb(16, 16, 16)

Layout (measured)

container max-width: 1152px
nav: 51px sticky
common grid: 2 columns

Motion choreography (measured)

Load order: div.animate-shimmer×6 → div.animate-shimmer → img.w-3/5 → div.marquee×4 → div.trace-line → div.transition-all

Scroll reveal: 4 elements rest at opacity 0, translateY(40px), animate in over 1s cubic-bezier(0, 0, 0.2, 1).

Stagger: div ×6 — 80ms apart.

Responsive (measured)

breakpoints: 640px · 768px · 1024px · 1280px · 1536px
mobile (390px): hero 36px · nav inline

Install it

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

npx shadcn add mozaika.design/r/decode/evidence.dev

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

Export: DESIGN.md

# Evidence — Design System

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

## Colors

| Role | Value |
|------|-------|
| bg | `#FCFCFC` |
| surface | `#ECECEC` |
| border | `#D6D6D6` |
| text | `#000000` |
| text_muted | `#5F5F5F` |
| primary | `#111827` |
| accent | `#000000` |
| link | `#4B5563` |
| secondary | `#1F2937` |
| button_bg | `#000000` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#000000` — 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 `#000000` — one role, not several (your action color).
- **accent** `#000000` — 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** `#111827` — a brand color — but the call-to-action uses #000000, not this.
- **link** `#4B5563` — inline text links and link-styled controls.
- **secondary** `#1F2937` — 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): `#FCFCFC` 92.6% · `#CCCED0` 7.4%

## Typography

- Heading: **Geist**
- Body: **Geist**

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 60px / 600 · lh 60px · tracking -1.2px |
| h2 | 36px / 600 · lh 40px · tracking -0.9px |
| h3 | 30px / 600 · lh 36px · tracking -0.75px |
| body | 12px / 400 · lh 16px |

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

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

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 4px, 6px, 8px, 12px, 16px, 20px, 24px, 32px, 40px, 48px — snap all gaps/padding to these
- section rhythm: 96px top/bottom padding per section (measured)

## Radius
- base: 4px
- button: 6px
- card: 8px
- pill: 9999px
- sharp: 2px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#000000` / `#FFFFFF` | 1px solid rgb(0, 0, 0) | 6px | 4px 8px 4px 8px | 500 12px | none |
| secondary | `#FFFFFF` / `#1F2937` | 1px solid rgb(229, 231, 235) | 6px | 6px 12px 6px 12px | 500 14px | none |

**States (measured, not guessed)**

- primary hover: background `#374151`
- primary focus: outline `1px auto rgb(16, 16, 16)`
- secondary hover: background `#F3F4F6`
- transition: `color 0.2s cubic-bezier(0.4, 0, 0.2, 1)`

## Shadows (elevation)
- subtle: `rgb(255, 255, 255) 0px 0px 0px 0px, rgba(31, 41, 55, 0.1) 0px 0px 0px 1px, rgba(0, 0, 0, 0.05) 0px 1px 2px 0px`
- card: `rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.05) 0px 1px 2px 0px`

## Motion
- durations: 300ms (dominant) · 200ms · 1000ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant) · `cubic-bezier(0, 0, 0.2, 1)`
- animated properties: color, background-color, border-color, text-decoration-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 |
|-------|-------|
| `--blue-100` | `#dbeafe` |
| `--blue-200` | `#bfdbfe` |
| `--blue-300` | `#93c5fd` |
| `--blue-400` | `#60a5fa` |
| `--blue-500` | `#3b82f6` |
| `--blue-600` | `#2563eb` |
| `--blue-700` | `#1d4ed8` |
| `--blue-800` | `#1e40af` |
| `--blue-900` | `#1e3a8a` |
| `--green-100` | `#dcfce7` |
| `--green-200` | `#bbf7d0` |
| `--green-300` | `#86efac` |

_…and 38 more measured on the page._

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

## Layout (measured)
- container max 1152px · common grid: 2-col
- nav: 51px sticky · bg rgba(252, 252, 252, 0.8)

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 1488 | 592 | 3 | 24 | 64/64 | — |
| 2080 | 872 | — | — | 96/0 | — |
| 3016 | 600 | 2 | 64 | 96/0 | 40/60 |
| 3887 | 494 | 2 | 64 | 0/96 | 40/60 |
| 4605 | 744 | 2 | 64 | 0/96 | 60/40 |

## Motion choreography (measured)
Load order: `div.animate-shimmer`×6 @0ms → `div.animate-shimmer` @0ms → `img.w-3/5` @128ms → `div.marquee`×4 @128ms → `div.trace-line` @128ms → `div.transition-all` @132ms
- `div.animate-shimmer` ×6 — transform translate(-100%) skew(-12deg, 0deg)→translate(calc(100% + 1440px)) skew(-12deg, 0deg) — 2000ms ease-in-out · loops
- `div.animate-shimmer` — transform translate(-100%) skew(-12deg, 0deg)→translate(calc(100% + 1440px)) skew(-12deg, 0deg) — 2000ms ease-in-out · loops
- stagger: `div` ×6 — 80ms apart
- scroll reveal: 4 elements rest at opacity 0, translateY(40px), animate in over 1s cubic-bezier(0, 0, 0.2, 1) (3 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 · 1536px
- mobile (390px): hero 36px · 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.

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