# Spotlight Grid (Notchset): prompt.md (v1.0.0)

- id: `spotlight-grid` · 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/spotlight-grid`
- npm dependencies: none
- registry dependencies: utils, https://beautiful-ui.dev/r/notchset-foundation.json
- docs: https://beautiful-ui.dev/components/spotlight-grid
- The install command carries everything this item needs (files, CSS, tokens, npm and registry dependencies). Prefer it to copying source by hand.

A 2×2 grid of live tool previews: pointing at a tile grows its column and row (560ms glide) while the others dim, OPEN pins it with the field ground and unrolls its controls so people can try it in place, and Esc or CLOSE lets it go; previews and controls are yours.

## 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/notchset/blocks/spotlight-grid.tsx`; shared code: `lib/beautiful-ui/notchset/instrument.tsx`, `lib/beautiful-ui/notchset/root.ts`.
- Registry dependencies, installed with it automatically: shadcn `utils` (cn), `notchset-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: `SpotlightGrid`, and every exported type.
- CSS: the install adds the notchset foundation (tokens, keyframes, motion levels) to your global stylesheet 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 `--notchset-*` custom properties (`--notchset-check`, `--notchset-control-edge`, `--notchset-draw-from`, `--notchset-ease-bloom`, `--notchset-ease-glide`, `--notchset-ease-key-down`, `--notchset-ease-key-up`, `--notchset-ease-travel`, `--notchset-fade`, `--notchset-focus-color`, `--notchset-focus-inset`, `--notchset-grow-to`, `--notchset-key-down`, `--notchset-key-up`, `--notchset-life-from`, `--notchset-life-ms`, `--notchset-node-blink`, `--notchset-node-bloom`, `--notchset-node-delay`, `--notchset-plate-color`, `--notchset-rise-from`, `--notchset-rule`, `--notchset-scan-to`, `--notchset-scroll`, `--notchset-signal`, `--notchset-sweep-to`, `--notchset-travel`). Never add Tailwind colour classes inside the component.

```tsx
import { SpotlightGrid } from "@/components/ui/notchset/blocks/spotlight-grid";
```

## Parts

| Part | data-slot | What it is for |
|---|---|---|
| `SpotlightGrid` | `spotlight-grid` | Header and the four tiles. |

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 `SoundProvider` once (install: `npx shadcn@latest add https://beautiful-ui.dev/r/notchset-sound.json`, import from `@/components/ui/notchset/sound-provider`); `useSound()` gives `muted` and `setMuted` for a mute control. Without a provider the audio engine never loads.

## Match the original
- Read `components/ui/notchset/blocks/spotlight-grid.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
- feature showcase, product tour, interactive features, tool grid, try it, spotlight, landing page, Notchset
- A landing section where each feature can be tried, not just read about
- Four tools of equal weight

### Not when
- More or fewer than four features: use Feature Bento
- Static screenshots: a plain grid is lighter

## Mistakes
- Make every preview do something when opened, or the OPEN button is a lie
- Pause live previews when off screen (the demo's latency tile does)

## Usage

```tsx
import { SpotlightGrid } from "@/components/ui/notchset/blocks/spotlight-grid";

const tile = (n: number) => ({ id: `t${n}`, label: `0${n} · TOOL`, title: `Tool ${n}`, body: "What it does.", preview: <div>Preview</div>, controls: <button type="button">Try it</button> });

export function Tools() {
  return <SpotlightGrid title="Four tools, in view" tiles={[tile(1), tile(2), tile(3), tile(4)]} />;
}
```

## Props

| Prop | Type | Default | What it does |
|---|---|---|---|
| `tiles` | `[tile, tile, tile, tile]` |  | Each { id, label, title, body, preview, controls? }; preview and controls are nodes or (open) => node. |
| `eyebrow / title / description` | `string / ReactNode / ReactNode` |  | The header. |

Full docs: https://beautiful-ui.dev/components/spotlight-grid

## Customising
- Colours: the component reads your shadcn tokens (`--background`, `--foreground`, `--border` …), refined by the `--notchset-*` tokens. The signal colour is `--notchset-signal` (it falls back to `--destructive`). Set tokens on `:root`, or on any container to retheme one area.
- 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 |
|---|---|
| Enter / Space | Open or close a tile |
| Esc | Close the open tile |
| Tab | Into the open tile's controls |

## Performance

- The grid itself only animates two grid tracks; previews decide their own cost.

## Responsive

- Under 700px (container width) the tiles stack at 300px or more and only pinning changes them.

## Motion inventory

| Interaction | What moves |
|---|---|
| Hover | The tile's column and row grow (560ms glide); the others dim to 42% |
| Open | The controls unroll in 420ms; the tile takes the field ground |

## Accessibility contract (preserve when editing)
- Each tile has a heading and an OPEN / CLOSE button with aria-expanded, named with the tile
- Folded controls are inert; Esc closes the open tile and returns focus to its button
- The hint is announced as it changes (HOVER TO PREVIEW · OPEN TO TRY, then ESC CLOSES)

## Install

```bash
npx shadcn@latest add @beautiful-ui-pro/spotlight-grid
```

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.

## Credits
- Built on shadcn/ui (https://ui.shadcn.com)

The notchset 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/notchset-foundation.json.