MozaikaLive decode

Therundown — decoded design system

therundown.ai · light · modern · custom · deep decode — measured live

Therundown'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/therundown.ai.

Decoded design system

Therundown's decoded design system: background #FFFFFF, text #000000, accent #2563EB, link #2563EB, primary #6B7280; type scale h1 60px / h2 38px / body 14px; 4px spacing base; 6px base radius. The single interactive/action color is #FFFFFF — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#FFFFFF
surface#EFEFEF
border#D8D8D8
text#000000
text_muted#606060
primary#6B7280
accent#2563EB
link#2563EB
secondary#FDECCE
button_bg#FFFFFF
button_text#171717

Using these colors

Typography

Spacing

Radii

Shadows (elevation)

Motion

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

Native design tokens

TokenValue
--wt-primary-color#255BEE
--wt-text-on-primary-color#FFFFFF
--wt-background-color#FFFFFF
--wt-text-on-background-color#222222
--wt-secondary-color#F9FAFB
--wt-text-on-secondary-color#030712
--wt-tertiary-color#FFFFFF
--wt-text-on-tertiary-color#222222
--wt-subscribe-background-color#FFFFFF
--wt-text-on-subscribe-background-color#222222

…and 3 more measured on the page.

Layout (measured)

Motion choreography (measured)

Load order: section._1ny5scw0

Scroll reveal: 1 elements rest at opacity 0, animate in over 300ms.

Input (measured)

height 55px · radius 8px · focus ring 2px solid rgba(0, 0, 0, 0)

Responsive (measured)

Install it

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

npx shadcn add mozaika.design/r/decode/therundown.ai

Or as a Meta Astryx theme — a ready defineTheme file with the measured hover/press states baked in:

curl -o src/themes/therundown.theme.ts https://mozaika.design/api/astryx/decode/therundown.ai.ts

registry item · astryx theme · or query it over MCP: get_design_system("Therundown")

Export: DESIGN.md

# Therundown — Design System

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

## Colors

| Role | Value |
|------|-------|
| bg | `#FFFFFF` |
| surface | `#EFEFEF` |
| border | `#D8D8D8` |
| text | `#000000` |
| text_muted | `#606060` |
| primary | `#6B7280` |
| accent | `#2563EB` |
| link | `#2563EB` |
| secondary | `#FDECCE` |
| button_bg | `#FFFFFF` |
| button_text | `#171717` |

**Using these colors**

- **Action color** `#FFFFFF` — 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 `#2563EB` — one role, not several.
- **accent** `#2563EB` — accent for emphasis — keep it rare on the page.
- **primary** `#6B7280` — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #FFFFFF).
- **secondary** `#FDECCE` — 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): `#171717` 66.5% · `#FFFFFF` 29.8% · `#969497` 3.7%

## Typography

- Heading: **Satoshi Variable**
- Body: **Inter**

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 60px / 700 · lh 72px |
| h2 | 38px / 700 · lh 46px |
| h3 | 21px / 400 · lh 25px |
| body | 14px / 400 · lh 17px |
| small | 13px / 500 · lh 20px |

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

> **Fonts —** Satoshi Variable — free, on Fontshare. Inter — free, on Google.

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 2px, 4px, 5px, 6px, 8px, 10px, 15px, 16px, 20px, 30px — snap all gaps/padding to these
- section rhythm: 40px top/bottom padding per section (measured)

## Radius
- base: 6px
- button: 5px
- card: 8px
- pill: 9999px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#FFFFFF` / `#171717` | 1px solid rgb(23, 23, 23) | 5px | 5px 16px 5px 16px | 300 14px | none |
| secondary | `#171717` / `#FFFFFF` | none | 8px | 0px 16px 0px 16px | 600 20px | none |

**States (measured, not guessed)**

- transition: `all 0.1s ease-in-out`

## Shadows (elevation)
- subtle: `rgba(0, 0, 0, 0) 0px 0px 0px 0px`

## Motion
- durations: 300ms (dominant) · 100ms
- easings: `ease-in-out` (dominant) · `ease-in`

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 |
|-------|-------|
| `--wt-primary-color` | `#255BEE` |
| `--wt-text-on-primary-color` | `#FFFFFF` |
| `--wt-background-color` | `#FFFFFF` |
| `--wt-text-on-background-color` | `#222222` |
| `--wt-secondary-color` | `#F9FAFB` |
| `--wt-text-on-secondary-color` | `#030712` |
| `--wt-tertiary-color` | `#FFFFFF` |
| `--wt-text-on-tertiary-color` | `#222222` |
| `--wt-subscribe-background-color` | `#FFFFFF` |
| `--wt-text-on-subscribe-background-color` | `#222222` |
| `--wt-border-radius` | `8px` |
| `--sl-widgets-font-family` | `-apple-system, system-ui` |

_…and 1 more measured on the page._

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

## Layout (measured)
- container max 1440px
- nav: 77px relative · bg #171717

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 77 | 402 | — | — | 40/40 | — |
| 634 | 1925 | — | — | 5/0 | — |
| 2559 | 849 | — | — | 30/0 | — |
| 3408 | 476 | — | — | 10/0 | — |

## Motion choreography (measured)
Load order: `section._1ny5scw0` @0ms
- scroll reveal: 1 elements rest at opacity 0, animate in over 300ms (1 revealed during the drive).

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

## Components (measured)
- input: h 55px · r 8px · bg #FFFFFF · placeholder #6B7280
  - focus ring: `2px solid rgba(0, 0, 0, 0)` — this exact construction, don't invent your own
- card ×3: pad 0px 0px 0px 0px · r 8px · bg rgba(0, 0, 0, 0)
  - hover: font-weight `400` · letter-spacing `normal`
- link: #000000 · no underline

## Responsive (measured)
- breakpoints: 600px
- mobile (390px): hero 16px · 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.

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> **Decoded with Mozaika** — measured live, not guessed. Full decoded design system + one-command install: mozaika.design/decode/therundown.ai

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Mozaika is an MCP-native design-reference library for AI coding agents: real products decoded into measured design systems, full-page screens, sliced sections with per-section specs, and ordered user flows. Connect your agent over MCP.

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