Payment

# Payment: Card Form

## Context
Flexnative UI intent — a reference solution from the shadcn/ui registry (@flx). The intent frames the problem; the decision is one approach to it.

## Problem
Collect or update a customer payment method so a charge can be taken.

## Decision
- Best for: The default for taking a card the first time. A direct form with number, expiry, and CVC keeps the flow on your page and works for any card brand or region.
- Trade-off: Typing full card details is the highest-friction option and puts compliance on you, so pair it with a trusted processor and clear security cues.

## Registry Item
@flx/payment-1

## Stack
- UI: shadcn/ui
- Styling: Tailwind CSS
- shadcn components: Button, Card, Input, Input Group, Label
- npm: lucide-react

## Registry Source
https://ui.flexnative.com/r/payment-1.json

## Preview
https://ui.flexnative.com/intents/payment#1

## Reference Implementation
```tsx
'use client'

import { useState } from 'react'
import { CreditCard, Lock } from 'lucide-react'

import { Button } from '@/components/ui/button'
import {
  Card,
  CardContent,
  CardFooter,
  CardHeader,
  CardTitle,
} from '@/components/ui/card'
import { Input } from '@/components/ui/input'
import {
  InputGroup,
  InputGroupAddon,
  InputGroupInput,
} from '@/components/ui/input-group'
import { Label } from '@/components/ui/label'

export function Payment1() {
  const [number, setNumber] = useState('')

  const formatNumber = (raw: string) =>
    raw
      .replace(/\D/g, '')
      .slice(0, 16)
      .replace(/(.{4})/g, '$1 ')
      .trim()

  return (
    <Card>
      <CardHeader>
        <CardTitle>Payment details</CardTitle>
      </CardHeader>
      <CardContent className="flex flex-col gap-4">
        <div className="flex flex-col gap-2">
          <Label htmlFor="cf-name">Name on card</Label>
          <Input
            id="cf-name"
            placeholder="Ada Lovelace"
            autoComplete="cc-name"
          />
        </div>
        <div className="flex flex-col gap-2">
          <Label htmlFor="cf-number">Card number</Label>
          <InputGroup>
            <InputGroupAddon>
              <CreditCard />
            </InputGroupAddon>
            <InputGroupInput
              id="cf-number"
              inputMode="numeric"
              placeholder="4242 4242 4242 4242"
              value={number}
              onChange={(e) => setNumber(formatNumber(e.target.value))}
            />
          </InputGroup>
        </div>
        <div className="flex gap-3">
          <div className="flex flex-1 flex-col gap-2">
            <Label htmlFor="cf-exp">Expiry</Label>
            <Input id="cf-exp" placeholder="MM / YY" inputMode="numeric" />
          </div>
          <div className="flex flex-1 flex-col gap-2">
            <Label htmlFor="cf-cvc">CVC</Label>
            <Input id="cf-cvc" placeholder="123" inputMode="numeric" />
          </div>
        </div>
      </CardContent>
      <CardFooter className="flex flex-col gap-3">
        <Button className="w-full">Save card</Button>
        <p className="text-muted-foreground flex items-center gap-1.5 text-xs">
          <Lock className="size-3" />
          Encrypted and processed securely.
        </p>
      </CardFooter>
    </Card>
  )
}
```