MozaikaDesign system

Eraser — Design System

dark · modern · medium · custom · confidence 90% · deep decode

The full decoded design system for Eraser: color roles, type scale, spacing, radii and paste-ready DESIGN.md / Tailwind / CSS exports.

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/eraser.

Tokens

Eraser's decoded design system: background #0B0B0B, text #ECECEE, accent #FFFFFF, link #3898EC, primary #2866DF; type scale h1 90px / h2 26px / body 16px; 4px spacing base; 8px 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#0B0B0B
surface#181818
border#2C2C2D
text#ECECEE
text_muted#969697
primary#2866DF
accent#FFFFFF
link#3898EC
secondary#00A9E5
button_bg#FFFFFF
button_text#171717

Using these colors

Typography

Spacing

Radii

Shadows (elevation)

Motion

Micro-interactions run at 250ms (dominant) with ease.

Native design tokens

TokenValue
--grey-600#666
--bg-color#171717
--grey-1400#f6f6f6
--grey-100#1c1c1c
--grey-500#4b4b4b
--grey-1200#e8e8e8

Button states (measured)

Layout (measured)

Motion choreography (measured)

Load order: img.blink-cursor → div.nav-wrapper-v2 → div.nav-wrapper-v2

Responsive (measured)

Per-section tokens (9)

Export: DESIGN.md

# Eraser — Design System

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

## Colors

| Role | Value |
|------|-------|
| bg | `#0B0B0B` |
| surface | `#181818` |
| border | `#2C2C2D` |
| text | `#ECECEE` |
| text_muted | `#969697` |
| primary | `#2866DF` |
| accent | `#FFFFFF` |
| link | `#3898EC` |
| secondary | `#00A9E5` |
| 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`, `button_bg` are all `#FFFFFF` — one role, not several (your action color).
- **accent** `#FFFFFF` — 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** `#2866DF` — a brand color — but the call-to-action uses #FFFFFF, not this.
- **link** `#3898EC` — inline text links and link-styled controls.
- **secondary** `#00A9E5` — 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` 56.6% · `#020202` 21.6% · `#DDDEDC` 11.2% · `#2D3038` 10.6%

## Typography

- Heading: **National 2 Condensed** _(free fallback: Newsreader)_
- Body: **Inter**
- Mono: **Jetbrainsmono** _(measured)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 90px / 700 · lh 77px · tracking -0.45px |
| h2 | 72px / 700 · lh 61px · tracking -0.36px |
| h3 | 26px / 400 · lh 32px · tracking -0.5px |
| body | 14px / 400 · lh 17px |
| small | 13px / 600 · lh 20px |

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

> **Fonts —** National 2 Condensed may be proprietary — safe free fallback: Newsreader (Google Fonts). Inter — free, on Google.

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 6px, 8px, 10px, 12px, 13px, 16px, 18px, 20px, 24px, 30px — snap all gaps/padding to these
- section rhythm: 90px top/bottom padding per section (measured)

## Radius
- base: 8px
- button: 4px
- card: 4px
- sharp: 3px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#FFFFFF` / `#171717` | none | 4px | 8px 17.92px 8px 17.92px | 600 13.0016px | none |
| secondary | `#1C1C1C` / `#FFFFFF` | 1px solid rgb(28, 28, 28) | 4px | 8px 18px 8px 18px | 600 14px | none |

**States (measured, not guessed)**

- primary hover: background `rgba(255, 255, 255, 0.7)`
- primary focus: outline `1px auto rgb(16, 16, 16)`
- secondary hover: border `1px solid rgb(49, 49, 49)` · background `#313131`
- transition: `all 0.25s ease`

## Shadows (elevation)
- card: `rgba(0, 0, 0, 0.3) 6px 6px 0px 0px`

## Motion
- durations: 250ms (dominant) · 200ms · 300ms
- easings: `ease` (dominant)

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 |
|-------|-------|
| `--grey-600` | `#666` |
| `--bg-color` | `#171717` |
| `--grey-1400` | `#f6f6f6` |
| `--grey-100` | `#1c1c1c` |
| `--grey-500` | `#4b4b4b` |
| `--grey-1200` | `#e8e8e8` |

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

## Layout (measured)
- common grid: 2-col

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 201 | 1268 | — | — | 64/80 | — |
| 1469 | 474 | — | — | 90/90 | — |
| 1943 | 1077 | 2 | 24 | 90/56 | 6/94 |
| 3020 | 1403 | 2 | 24 | 90/120 | 6/94 |
| 4424 | 1549 | 2 | 24 | 90/120 | 6/94 |

## Motion choreography (measured)
Load order: `img.blink-cursor` @0ms → `div.nav-wrapper-v2` @228ms → `div.nav-wrapper-v2` @228ms

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

## Components (measured)
- link: #4B4B4B · underline

## Responsive (measured)
- breakpoints: 480px · 768px · 992px · 1440px
- mobile (390px): hero 55px · body 13px · 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/eraser

Export: Tailwind v4 (@theme)

@theme {
  /* action color #FFFFFF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #0B0B0B;
  --color-surface: #181818;
  --color-border: #2C2C2D;
  --color-text: #ECECEE;
  --color-text-muted: #969697;
  --color-primary: #2866DF;  /* a brand color — but the call-to-action uses #FFFFFF, not this. */
  --color-accent: #FFFFFF;  /* 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: #3898EC;  /* inline text links and link-styled controls. */
  --color-secondary: #00A9E5;  /* 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: #FFFFFF;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #171717;
  /* fonts: National 2 Condensed may be proprietary — safe free fallback: Newsreader (Google Fonts). Inter — free, on Google. */
  --font-heading: "National 2 Condensed", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "Jetbrainsmono", ui-monospace, monospace;
  /* measured weights: 400, 500, 600, 700 — use these, not 400/600 */
  --text-hero: 90px; --font-weight-hero: 700; --leading-hero: 77px; --tracking-hero: -0.45px;
  --text-h2: 72px; --font-weight-h2: 700; --leading-h2: 61px; --tracking-h2: -0.36px;
  --text-h3: 26px; --font-weight-h3: 400; --leading-h3: 32px; --tracking-h3: -0.5px;
  --text-body: 14px; --font-weight-body: 400; --leading-body: 17px;
  --text-small: 13px; --font-weight-small: 600; --leading-small: 20px;
  --radius-base: 8px;
  --radius-button: 4px;
  --radius-card: 4px;
  --radius-sharp: 3px;
  --shadow-card: rgba(0, 0, 0, 0.3) 6px 6px 0px 0px;
  --color-btn-hover: rgba(255, 255, 255, 0.7);  /* 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: 90px;  /* per-section vertical padding (measured) */
  --spacing: 4px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 6, 8, 10, 12, 13, 16, 18, 20, 24, 30px */
}

Export: CSS variables

:root {
  /* action color #FFFFFF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #0B0B0B;
  --surface: #181818;
  --border: #2C2C2D;
  --text: #ECECEE;
  --text-muted: #969697;
  --primary: #2866DF;  /* a brand color — but the call-to-action uses #FFFFFF, not this. */
  --accent: #FFFFFF;  /* 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: #3898EC;  /* inline text links and link-styled controls. */
  --secondary: #00A9E5;  /* 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: #FFFFFF;  /* primary-button fill — the main call-to-action color. */
  --button-text: #171717;
  --font-heading: "National 2 Condensed", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Inter", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "Jetbrainsmono", ui-monospace, monospace;
  --text-hero: 90px; --weight-hero: 700; --leading-hero: 77px; --tracking-hero: -0.45px;
  --text-h2: 72px; --weight-h2: 700; --leading-h2: 61px; --tracking-h2: -0.36px;
  --text-h3: 26px; --weight-h3: 400; --leading-h3: 32px; --tracking-h3: -0.5px;
  --text-body: 14px; --weight-body: 400; --leading-body: 17px;
  --text-small: 13px; --weight-small: 600; --leading-small: 20px;
  --radius: 8px;
  --radius-button: 4px;
  --radius-card: 4px;
  --radius-sharp: 3px;
  --shadow-card: rgba(0, 0, 0, 0.3) 6px 6px 0px 0px;
  --btn-bg-hover: rgba(255, 255, 255, 0.7);
  --focus-ring: 1px auto rgb(16, 16, 16);
  --ease: ease;
  --duration-fast: 200ms;
  --duration-base: 250ms;
  --duration-slow: 300ms;
  --section-y: 90px;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --grey-600: #666;
  --bg-color: #171717;
  --grey-1400: #f6f6f6;
  --grey-100: #1c1c1c;
  --grey-500: #4b4b4b;
  --grey-1200: #e8e8e8;
}
/* fonts: National 2 Condensed may be proprietary — safe free fallback: Newsreader (Google Fonts). Inter — free, on Google. */