# Project Deadline Cards block

> Project task cards grid with client name, due-date countdown, and share action

Three-column grid of project cards, each with an icon badge, project title link, client name, and a Due countdown. Built with ReUI Frame, shadcn Button and Item. For project lists, task boards, deadlines.

- Type: Pro block
- Category: [Card](https://web.dev.reui.io/blocks/application/card.md)
- Page: https://web.dev.reui.io/blocks/application/card/card-21
- MCP: `get_block("card-21")`
- Built with: Button, Frame, Item
- Installs with a ReUI Pro or Ultimate license; setup: https://web.dev.reui.io/docs/license-setup

## Best for

Project cards for client work with a share button, the client name and a due in countdown such as 1d 18h

## Agent notes

- Replace `CARDS` in data.tsx; `description` holds the client name and `due` is a fixed string, so derive it from a real due date
- The share icon `Button` has no handler and no accessible name; add an aria label and wire it to your share action
- The project title is an anchor whose `href` is a hash; point it at your project page

## When not to use

- Projects grouped in stage columns that people drag between: use the [Kanban Board blocks](https://web.dev.reui.io/blocks/application/kanban-board.md)
- Dozens of projects as rows to sort and filter by client or due date: use the [Base blocks](https://web.dev.reui.io/blocks/data-grid/base.md)

## Install

```bash
npx shadcn@latest add @reui/card-21
```

## About Card blocks

### When to use

- Rows and grids of KPI tiles, each a value and a label with an optional trend badge or icon
- Grids of small linked cards for features, setup steps, guides, integrations or partner logos
- One record or offer per card: a profile, applicant, delivery, meeting, job, asset price or promo

### When not to use

- A metric panel with a progress bar, a segmented gauge or supporting rows under the total: use the [Stats blocks](https://web.dev.reui.io/blocks/application/stats.md)
- A KPI whose trend over time is plotted, with a period switcher or tooltips: use the [Area Chart blocks](https://web.dev.reui.io/blocks/chart/area-chart.md)
- A whole overview page: a header, a row of KPI tiles, then a work list or trend panel: use the [Dashboard blocks](https://web.dev.reui.io/blocks/application/dashboard.md)

### Agent notes

- Every block centers itself in a padded `min-h-svh` wrapper in page.tsx or its root component; remove it when the card goes inside your own page

Every ReUI item has a twin like this one; the index is https://web.dev.reui.io/llms.txt. Agents with the ReUI MCP (https://web.dev.reui.io/docs/mcp) get the same guidance from the getters named above.