Evidence — design system & UI screens

Data · 1 screen · 13 sections · https://evidence.dev/

Clean light BI landing; 'Build, version control, and publish data products using SQL, markdown, and AI' over a code-plus-dashboard product mockup (Acme Sales Performance charts).

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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/website/evidence.

Decoded design system

Evidence's decoded design system: background #FFFFFF, text #000000, accent #000000, link #030712, 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	`#FFFFFF`
surface	`#EFEFEF`
border	`#D8D8D8`
text	`#000000`
text_muted	`#606060`
primary	`#111827`
accent	`#000000`
link	`#030712`
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 #030712 — 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

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

Full design system, per-section tokens & DESIGN.md / Tailwind / CSS exports →

Screens

Evidence - Business Intelligence as Code