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@trinityui/design-system-css

v2.13.2

Published

Trinity Design System CSS package for non-React frameworks (Angular, Vue, static HTML).

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Readme

@trinityui/design-system-css

CSS-only package for Trinity Design System. Provides all design tokens as CSS custom properties (--trinity-*) for Angular, Vue, static HTML, or any non-React application.

npm version

What's Included

  • All design tokens as CSS variables — colors (6 brand palettes), spacing (20-step scale), typography, border radius, shadows, z-index, motion, opacity
  • Light and dark mode — toggle via data-theme="dark" attribute
  • Base element styles — sensible defaults for headings, body text, links, and form elements using Trinity styling

Install

pnpm add @trinityui/design-system-css

Usage

CSS import

@import "@trinityui/design-system-css/css";

Angular (angular.json)

{
  "styles": [
    "node_modules/@trinityui/design-system-css/dist/trinity.css",
    "src/styles.css"
  ]
}

Vue / Vite

// main.ts
import '@trinityui/design-system-css';

Static HTML

<link rel="stylesheet" href="node_modules/@trinityui/design-system-css/dist/trinity.css" />

Dark Mode

<html data-theme="dark">

CSS Variable Examples

/* Brand colors */
var(--trinity-navy-900)              /* #050742 */
var(--trinity-coral-800)             /* #FF6150 */

/* Semantic colors */
var(--trinity-card-bg)               /* #FFFFFF (light) / #1C1C1F (dark) */
var(--trinity-text-primary)          /* #09090B (light) / #F9FAFB (dark) */

/* Numbers: the monospace data style for table cells; a KPI number keeps
   var(--trinity-font-family) and adds font-variant-numeric: tabular-nums */
var(--trinity-data-numeric-font-family)
var(--trinity-data-numeric-font-feature-settings)  /* "tnum" 1 */

/* Spacing */
var(--trinity-space-4)               /* 16px */

/* Radius */
var(--trinity-radius-card)           /* 12px */
var(--trinity-radius-button)         /* 9999px (pill) */

/* Shadows (whole box-shadow values) */
var(--trinity-shadow-card)
var(--trinity-shadow-modal)
var(--trinity-focus-ring)            /* focus halo, a box-shadow in light and dark */

These are the stylesheet names. dist/trinity.css lists every one. The React package's injectTrinityCssVariables() adds runtime variables with other names (--trinity-color-navy-900, --trinity-spacing-4). This stylesheet does not declare them.

Buttons on navy surfaces

A primary button is navy, so it disappears on a navy header, hero or sidebar (--trinity-bg-brand). Use the on-brand variables there. They are the same in light and dark mode, and they match the React theme's <Button color="onBrand">.

/* Filled: white fill, navy label, coral on hover */
.btn--on-brand { background: var(--trinity-button-on-brand-bg); color: var(--trinity-button-on-brand-text); }
.btn--on-brand:hover { background: var(--trinity-button-on-brand-bg-hover); color: var(--trinity-button-on-brand-text-hover); }

/* Outlined: white border and label, the same coral hover */
.btn--on-brand-outlined { background: var(--trinity-button-on-brand-outlined-bg); color: var(--trinity-button-on-brand-outlined-text); border: 2px solid var(--trinity-button-on-brand-outlined-border); }
.btn--on-brand-outlined:hover { background: var(--trinity-button-on-brand-outlined-bg-hover); border-color: var(--trinity-button-on-brand-outlined-border-hover); color: var(--trinity-button-on-brand-outlined-text-hover); }

/* Keyboard focus: a white outline, visible on the navy */
.btn--on-brand:focus-visible,
.btn--on-brand-outlined:focus-visible { outline: 2px solid var(--trinity-button-on-brand-focus-outline); outline-offset: 2px; }

The pressed (-bg-active, -text-active) and disabled (-bg-disabled, -text-disabled, -border-disabled) variables complete the set. The full pattern is in the CSS guide (docs/INSTRUCTIONS_CSS.md, "Buttons on navy surfaces").

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