# Stats Band (Lumen Halo): prompt.md (v1.0.0)

- id: `lumen-stats-band` · version 1.0.0 · block · pro (Pro)
- category: Marketing
- build: Base UI (one set of files; its dependencies follow the build)
- install (this build): `npx shadcn@latest add @beautiful-ui-pro/lumen-stats-band`
- npm dependencies: none
- registry dependencies: utils, https://beautiful-ui.dev/r/lumen-foundation.json
- docs: https://beautiful-ui.dev/components/lumen-stats-band
- The install command carries everything this item needs (files, CSS, tokens, npm and registry dependencies). Prefer it to copying source by hand.

Three or four numbers that make the case, each with its label and a line of context. They count up once as the band comes into view, without the row shifting; screen readers and reduced motion get the final numbers straight away.

## Build it
- Stack: React 19 (`ref` is a plain prop), TypeScript, Tailwind CSS v4 utilities, a shadcn-initialised project with the `@/*` alias.
- Packages: none beyond React.
- Files: `components/ui/lumen/blocks/stats-band.tsx`.
- Registry dependencies, installed with it automatically: shadcn `utils` (cn), `lumen-foundation`.
- Builds: one set of files for both, but its dependencies come in Base UI and Radix builds. Install the one that matches the project (see Install): a free item's bare URL installs the Base UI build of it and its dependencies.
- Exports to keep: `StatsBand`, and every exported type.
- CSS: the install merges this item's rules (the registry `css` field) into your global stylesheet, in `@layer components`, and adds the lumen foundation (tokens, keyframes, motion levels) once. Nothing to import by hand.
- Re-running `add` (or `--overwrite`) re-applies those rules: put overrides in your own CSS, never in the installed rules.
- Tokens: retheme with the `--lumen-*` custom properties (`--lumen-accent`, `--lumen-accent-foreground`, `--lumen-accent-text`, `--lumen-bad`, `--lumen-bad-text`, `--lumen-chart-accent`, `--lumen-chart-accent-foreground`, `--lumen-chart-accent-text`, `--lumen-focus`, `--lumen-good`, `--lumen-good-text`, `--lumen-hairline`, `--lumen-ink`, `--lumen-muted-ink`, `--lumen-series-1`, `--lumen-series-2`, `--lumen-series-3`, `--lumen-series-4`, `--lumen-series-5`, `--lumen-series-6`, `--lumen-warn`, `--lumen-warn-text`); this item's CSS also reads `--lumen-font-mono`, `--lumen-font-sans`. Never add Tailwind colour classes inside the component.

```tsx
import { StatsBand } from "@/components/ui/lumen/blocks/stats-band";
```

## Parts

| Part | data-slot | What it is for |
|---|---|---|
| `StatsBand` | `stats-band` | The heading, the cells and the footnote. |

Style a part with `[data-slot="<slot>"]` selectors or its `className`; keep the attributes when editing.

## Sound
- Keep every `data-slot` and `data-sound` attribute: the sound layer reads them.
- Installing this item adds no audio. Nothing plays until the app mounts `GlassSoundProvider` once (install: `npx shadcn@latest add https://beautiful-ui.dev/r/glass-sound.json`, import from `@/components/beautiful-ui/glass-sound`); `GlassSoundToggle` is its mute control. Without a provider the audio engine never loads.

## Match the original
- Read `components/ui/lumen/blocks/stats-band.tsx` as the reference implementation before changing or recreating anything, and match it: sizes, colours per theme, motion timings, copy and behaviour.
- If you deviate (a prop you can't honour, a style you changed, a dependency you swapped), say so in your reply, part by part.
- Keep the accessibility contract, the keyboard map and the motion levels listed below.

## Use it when
- stats section, numbers band, metrics strip, social proof numbers, key figures, by the numbers
- A landing page's proof in numbers
- An about page's key figures

### Not when
- Live product metrics that change: use Stat or Metric Header
- One number: use Stat

## Mistakes
- Use real, current numbers and say when they're from in the footnote
- Keep it to three or four; more dilutes the point

## Usage

```tsx
import { StatsBand } from "@/components/ui/lumen/blocks/stats-band";

export function ByTheNumbers() {
  return (
    <StatsBand
      title="Teams rely on it every day"
      stats={[
        { id: "teams", value: 12400, label: "Teams", notation: "compact", suffix: "+" },
        { id: "uptime", value: 99.99, label: "Uptime last year", suffix: "%" },
        { id: "p95", value: 84, label: "Median page load", suffix: " ms" },
        { id: "countries", value: 41, label: "Countries" },
      ]}
      footnote="As of September 2026."
    />
  );
}
```

## Props

| Prop | Type | Default | What it does |
|---|---|---|---|
| `stats` | `Stat[]` |  | Stat = { id, value, label, prefix?, suffix?, decimals?, notation?: "standard" \| "compact", detail? }. |
| `title / footnote` | `ReactNode / ReactNode` |  | A heading above, and a source or date below. |
| `locale` | `string` |  | How numbers are written. |
| `motion` | `"full" \| "off"` | `"full"` | Count up on first view; reduced motion always shows the final numbers. |

Full docs: https://beautiful-ui.dev/components/lumen-stats-band

## Customising
- Motion: `motion="full"` (default) | `"subtle"` | `"off"`. prefers-reduced-motion is always respected.
- Colours: set the `--lumen-*` tokens on `:root`, or on a container with the `lumen-scope` class to retheme one area. Add the `lumen-inherit` class to follow your shadcn palette instead (`--chart-N`, `--destructive`).
- Dark mode follows the `.dark` class on an ancestor (the shadcn and next-themes convention).
- Update later by re-running the install with `--overwrite` (review the diff if you edited it). Changelog: https://beautiful-ui.dev/r/changelog.json

## Keyboard

| Keys | Action |
|---|---|
| — | Nothing to operate: the figures are read as a list of labels and numbers |

## Performance

- One observer and one short animation frame loop, stopped when it finishes or unmounts

## Responsive

- Cells sit in one row and become two by two under 640px; the numbers scale with the container

## Motion inventory

| Interaction | What moves |
|---|---|
| In view | Numbers count up once over about 1.4s, easing out; the width never changes |

## Accessibility contract (preserve when editing)
- A description list: each label is a term, its number the definition
- Screen readers get the final number only; the counting copy is hidden from them
- The count waits for the band to be in view and is skipped under reduced motion

## Install

```bash
npx shadcn@latest add @beautiful-ui-pro/lumen-stats-band
```

Pro item: needs the `@beautiful-ui-pro` registry in `components.json` and `BEAUTIFUL_UI_TOKEN` in `.env.local` (https://beautiful-ui.dev/account). Setup: https://beautiful-ui.dev/docs/pro. Your components.json `style` picks the build: radix-*, new-york and default get Radix, base-* gets Base UI.

The lumen foundation (the tokens listed above, keyframes and motion levels) installs once with the first component; its CSS is public at https://beautiful-ui.dev/r/lumen-foundation.json.