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@sereno-ds/tokens

v0.33.2

Published

Sereno Design System — the token layer (CSS custom properties, light × dark).

Vulnerabilities

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Links

Git

Maintainers

gabrielbarbosa95gabrielbarbosa95

Keywords

design-tokenscss-variablesdesign-systemsereno

Readme

@sereno-ds/tokens

The token layer of the Sereno Design System — CSS custom properties (colors, typography, spacing, radii, elevation, motion) with light and [data-theme="dark"] values. CSS-first: the one JS export (Breakpoints, below) exists only for values a CSS custom property can't serve on its own.

Required by @sereno-ds/ui; usable on its own if you want the Sereno scales without the components.

Install

npm i @sereno-ds/tokens

Use

Import the barrel once at the app root, before any component styles:

import '@sereno-ds/tokens/tokens.css';

That pulls, in order: colors, typography, spacing, radii, elevation, motion, base (a light element reset). You can also import a single layer:

import '@sereno-ds/tokens/colors.css';
import '@sereno-ds/tokens/spacing.css';

Breakpoints

spacing.css defines the canonical breakpoints as --bp-sm / --bp-md / --bp-lg / --bp-xl, but a CSS @media query can't read a custom property — anything that has to write one (a Tailwind @theme, a matchMedia call) needs the literal pixel number. Import it instead of retyping it by hand:

import { breakpoints } from '@sereno-ds/tokens/breakpoints';
// { sm: 560, md: 768, lg: 1024, xl: 1280 }

A build-time check keeps this in sync with spacing.css — the two can never silently drift apart.

CSS still can't import a JS value, so a tool like Tailwind v4's @theme (which compiles breakpoints straight into @media rules) still needs the literal number written in its own config — this export just gives you something to read that number from instead of hand-copying it, and something a consumer-side test can assert against so a future change to --bp-* doesn't drift silently:

// e.g. a small check in the consuming app's own test suite
import { breakpoints } from '@sereno-ds/tokens/breakpoints';
expect(TAILWIND_THEME.breakpointSm).toBe(`${breakpoints.sm}px`);

Dark mode

colors.css and elevation.css carry [data-theme="dark"] overrides. Set data-theme="dark" (or "light") on <html> — @sereno-ds/ui's ThemeProvider does this, or wire your own.

Fonts

typography.css maps --font-display / --font-body / --font-mono onto three variables the host provides: --font-manrope, --font-inter, --font-jetbrains-mono (each with a system fallback). See the @sereno-ds/ui README for setup.

License

MIT