Gamut Typography

Implementation source of truth: packages/gamut-styles/src/variables/typography.ts and themes under packages/gamut-styles/src/themes.

Scope by theme

Themes	fontFamily.base	fontFamily.accent	fontWeight.title
Core, Admin, Platform	Apercu stack	Suisse + Apercu stack	700
Percipio	Skillsoft Text	Skillsoft Sans; monospace → Roboto Mono	500
LX Studio	Skillsoft Text / Sans (same as Percipio)	Same	500

Admin and Platform extend Core for colors / modes only — typography matches Core.

Licensing: Apercu is licensed for Codecademy surfaces only; Skillsoft products use Percipio/LX stacks.

Use fontWeight="title" for headlines / emphasis roles — never hardcode 700 on Percipio/LX unless SPECIFICALLY noted in Figma designs.

Font weight (semantic)

Token	Core / Admin / Platform	Percipio / LX Studio
base	400	400
title	700	500

Headlines, CTAs, and buttons should use fontWeight="title" so Percipio/LX get 500, Core gets 700. Literal 700 breaks Skillsoft branding on those themes.

Font size scale (fontSize)

Theme keys: 64, 44, 34, 26, 22, 20, 18, 16, 14.

import { css } from '@codecademy/gamut-styles';
import styled from '@emotion/styled';
import { system } from '@codecademy/gamut-styles';

const Paragraph = styled.p(system.typography);
<Paragraph fontSize={16} lineHeight="base" />;

const Styled = styled.div(css({ fontSize: 14, fontFamily: 'base' }));

Line height (lineHeight)

Tokens: base (1.5), spacedTitle (1.3), title (1.2). Prefer tokens over raw decimals. Only specify lineHeight when specified by design.

Line length

Context	Target
Single-column body	~66 characters (max ~85)
Multi-column	≤50 characters per line
Minimum	~45 characters

Accessing typography tokens

import { system } from '@codecademy/gamut-styles';
import { variance } from '@codecademy/variance';

const Heading = styled.h2(variance.compose(system.typography, system.space));

<Heading
  fontSize={26}
  fontFamily="base"
  fontWeight="title"
  lineHeight="title"
  mb={8}
/>;

import { css } from '@codecademy/gamut-styles';

const Caption = styled.span(
  css({ fontFamily: 'accent', fontSize: 14, color: 'text-secondary' })
);

Prefer <Text> from @codecademy/gamut with variant / as — see Storybook Typography / Text.

Codecademy (Core / Admin / Platform) — voice and layout

Do not blindly apply to Percipio/LX without brand guidance.

• fontFamily="base" (Apercu): default UI and marketing type. Emphasis inside body copy: Italic, not Bold for intra-paragraph stress.
• fontFamily="accent" (Suisse stack): technical accent — code snippets, captions, labels. Use sparingly; glyph box reads larger — step down ~10–15% vs equivalent base size.
• Alignment: left-align by default; center only short marketing headlines; avoid right-align except tabs / numerics.
• Letter-spacing: do not tweak tracking unless design specifies.

Semantic vs visual headings

• <Text as="h1"> … <Text as="h6"> gets default heading styles: each tag maps to the same scale as variant="title-xxl" … variant="title-xs" (h1 largest through h6 smallest). Plain <Text> defaults to as="span" (inherits font size).
• Use variant plus fontSize / fontWeight / lineHeight (and other system props) to override element defaults when the outline needs one heading level but the UI needs another visual weight — e.g. <Text as="h2" variant="title-sm">.
• Still pick h1–h6 for document structure and assistive tech; overrides are for intentional divergence between semantics and appearance.