v0.1 public beta early access on GitHub
Home / Screens / ecommerce-checkout
Screen template

Checkout Screen

Grouped address, delivery-speed radio-row, and payment cards with a live order summary, express-checkout CTA, and a shadowed sticky secure pay bar

pro Expo Go ✓ iosandroid gestures: tap · scroll haptics: light · selection · success · heavy
$ npx lumioui add ecommerce-checkout
import { CheckoutScreen } from "@/screens/ecommerce/checkout";
Native packages installed6
@lumioui/ui@latest@lumioui/core@latestreact-native-safe-area-context@*react-native-reanimated@*react-native-svg@*nativewind@*
ecommerce/checkout.tsxsource · yours to edit
import * as React from "react";
import { useState } from "react";
import { View, ScrollView } from "react-native";
import { SafeAreaView, useSafeAreaInsets } from "react-native-safe-area-context";
import { Button, Glass, Icon, RadioGroup, RadioGroupItem, Separator, Text } from "@lumioui/ui";
import { cn, useHaptic } from "@lumioui/core";
import { BLOCK_STAGGER, BrandMark, LumioMark, MONO, Mount, Press, StickyBottomBar, brandKey } from "../shared";

export interface CheckoutAddress {
  name: string;
  line1: string;
  line2?: string;
  city: string;
  postalCode: string;
  country?: string;
}

export interface PaymentMethod {
  brand: string;
  last4: string;
  expiry?: string;
}

export interface DeliveryOption {
  id: string;
  label: string;
  /** e.g. "5–7 business days" */
  detail: string;
  price: number;
}

export interface OrderSummary {
  itemCount: number;
  subtotal: number;
  /** Base shipping for the default delivery option. */
  shipping: number;
  tax?: number;
  total: number;
}

export interface CheckoutScreenProps {
  address?: CheckoutAddress;
  paymentMethod?: PaymentMethod;
  deliveryOptions?: DeliveryOption[];
  summary?: OrderSummary;
  currency?: string;
  /** Inline validation message shown above the pay bar; disables ordering while set. */
  error?: string;
  onPlaceOrder?: () => void;
  /** Wallet-style one-tap pay above the card CTA. */
  onExpressPay?: () => void;
  onChangeAddress?: () => void;
  onChangePayment?: () => void;
  onSelectDelivery?: (option: DeliveryOption) => void;
  onBack?: () => void;
}

const DEFAULT_ADDRESS: CheckoutAddress = {
  name: "Amara Chen",
  line1: "421 Harbor Lane",
  line2: "Apt 5B",
  city: "San Francisco, CA",
  postalCode: "94107",
  country: "United States",
};

const DEFAULT_PAYMENT: PaymentMethod = { brand: "Visa", last4: "4821", expiry: "09/28" };

const DEFAULT_DELIVERY: DeliveryOption[] = [
  { id: "standard", label: "Standard", detail: "5–7 business days", price: 0 },
  { id: "express", label: "Express", detail: "2–3 business days", price: 12 },
  { id: "priority", label: "Priority", detail: "Next business day", price: 24 },
];

// Same bag the cart screen ships: overcoat $248 + boots $295 + 2× tee $170
// = $713, 8.5% tax → $60.61, Standard delivery free → $773.61.
const DEFAULT_SUMMARY: OrderSummary = {
  itemCount: 4,
  subtotal: 713,
  shipping: 0,
  tax: 60.61,
  total: 773.61,
};

/** Prices always render with two decimals ($628.00). */
const fmt = (n: number, currency = "$") =>
  `${currency}${n.toLocaleString("en-US", { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`;

function ChangeButton({ onPress, label }: { onPress?: () => void; label: string }) {
  if (!onPress) return null;
  return (
    <Press
      onPress={onPress}
      accessibilityRole="button"
      accessibilityLabel={label}
      hitSlop={12}
      className="min-h-11 justify-center px-2"
    >
      <Text variant="small" className="font-semibold text-[#65A30D]">
        Change
      </Text>
    </Press>
  );
}

/** Checkout — grouped address, delivery, payment and summary sections with a
 *  sticky secure "Pay" bar. */
export function CheckoutScreen({
  address = DEFAULT_ADDRESS,
  paymentMethod = DEFAULT_PAYMENT,
  deliveryOptions = DEFAULT_DELIVERY,
  summary = DEFAULT_SUMMARY,
  currency = "$",
  error,
  onPlaceOrder,
  onExpressPay,
  onChangeAddress,
  onChangePayment,
  onSelectDelivery,
  onBack,
}: CheckoutScreenProps) {
  const haptics = useHaptic();
  const insets = useSafeAreaInsets();
  const [deliveryId, setDeliveryId] = useState(deliveryOptions[0]?.id ?? "");

  const delivery = deliveryOptions.find((o) => o.id === deliveryId) ?? deliveryOptions[0];
  const shipping = delivery?.price ?? summary.shipping;
  const total = summary.subtotal + shipping + (summary.tax ?? 0);

  return (
    <SafeAreaView className="flex-1 bg-[#F4F5F9] dark:bg-[#111114]" edges={["top"]}>
      {/* Floating chrome — back disc + centered brand/title pill. */}
      <View pointerEvents="box-none" className="absolute inset-x-4 z-10" style={{ top: insets.top + 8 }}>
        <View className="flex-row items-center justify-between">
          <Glass interactive effect="regular" className="h-11 w-11 items-center justify-center rounded-full">
            <Press
              haptic="light"
              onPress={() => onBack?.()}
              accessibilityRole="button"
              accessibilityLabel="Go back"
              className="h-9 w-9 items-center justify-center"
            >
              <Icon name="chevron-left" size="md" color="foreground" />
            </Press>
          </Glass>
          <View className="h-11 w-11" />
        </View>
        <View pointerEvents="none" className="absolute inset-0 items-center justify-center">
          <View className="h-11 flex-row items-center justify-center gap-2 rounded-full pl-3.5 pr-5">
            <Glass effect="regular" className="absolute inset-0 rounded-full" />
            <LumioMark size={18} />
            <Text accessibilityRole="header" className="text-sm font-bold tracking-tight">
              Checkout
            </Text>
          </View>
        </View>
      </View>

      <ScrollView
        className="flex-1"
        showsVerticalScrollIndicator={false}
        contentContainerClassName="gap-4 px-6 pb-60"
        contentContainerStyle={{ paddingTop: insets.top + 60 }}
        contentInsetAdjustmentBehavior="automatic"
      >
        {/* Total hero — dark gradient card leads the screen: the number
            the user is about to commit, with the line items underneath.
            Raw hex is art direction (like StoryChrome). */}
        <Mount>
          <View className="overflow-hidden rounded-3xl bg-[#1B1B26]">
            <View className="gap-4 p-5">
              <View className="flex-row items-center justify-between">
                <Text className="text-xs font-medium uppercase tracking-wider text-white/50">
                  Order total · {summary.itemCount} {summary.itemCount === 1 ? "item" : "items"}
                </Text>
                <View className="rounded-full bg-[#BEF04C] px-2.5 py-1">
                  <Text className="text-[10px] font-bold uppercase tracking-wider text-[#1B1B26]">
                    Lumio Market
                  </Text>
                </View>
              </View>
              <Text className="text-[32px] font-bold tracking-tight text-white" style={{ fontFamily: MONO, fontVariant: ["tabular-nums"] }}>
                {fmt(total, currency)}
              </Text>
              <View className="gap-1 border-t border-white/10 pt-3">
                <View className="flex-row items-center justify-between py-0.5">
                  <Text className="text-xs text-white/60">Subtotal</Text>
                  <Text className="text-xs text-white tabular-nums">{fmt(summary.subtotal, currency)}</Text>
                </View>
                <View className="flex-row items-center justify-between py-0.5">
                  <Text className="text-xs text-white/60">
                    Shipping{delivery ? ` (${delivery.label})` : ""}
                  </Text>
                  <Text className="text-xs text-white tabular-nums">
                    {shipping === 0 ? "Free" : fmt(shipping, currency)}
                  </Text>
                </View>
                {summary.tax != null ? (
                  <View className="flex-row items-center justify-between py-0.5">
                    <Text className="text-xs text-white/60">Tax</Text>
                    <Text className="text-xs text-white tabular-nums">{fmt(summary.tax, currency)}</Text>
                  </View>
                ) : null}
                {/* Sustainability line — checkouts increasingly carry it. */}
                <View className="flex-row items-center gap-1.5 pt-1.5">
                  <Icon name="leaf" size="sm" color="#BEF04C" />
                  <Text className="text-[11px] text-white/60">
                    Carbon-neutral shipping on this order
                  </Text>
                </View>
              </View>
            </View>
          </View>
        </Mount>

        {/* Address */}
        <Mount delay={BLOCK_STAGGER}>
          <View className="rounded-3xl bg-white p-5 dark:bg-[#1A1A20]">
            <View className="flex-row items-center justify-between pb-3">
              <Text variant="small" className="font-semibold">
                Shipping address
              </Text>
              <ChangeButton onPress={onChangeAddress} label="Change shipping address" />
            </View>
            <View className="flex-row gap-3">
              <View className="h-10 w-10 items-center justify-center rounded-full bg-[#EDF8C4] dark:bg-[#1E2410]">
                <Icon name="map-pin" size="sm" color="#65A30D" />
              </View>
              <View className="flex-1 gap-0.5">
                <Text variant="small">{address.name}</Text>
                <Text variant="muted">
                  {address.line1}
                  {address.line2 ? `, ${address.line2}` : ""}
                </Text>
                <Text variant="muted">
                  {address.city} {address.postalCode}
                  {address.country ? `, ${address.country}` : ""}
                </Text>
              </View>
            </View>
          </View>
        </Mount>

        {/* Delivery options */}
        <Mount delay={BLOCK_STAGGER * 2}>
          <View className="rounded-3xl bg-white p-5 dark:bg-[#1A1A20]">
            <Text variant="small" className="pb-3 font-semibold">
              Delivery
            </Text>
            <RadioGroup
              value={deliveryId}
              onValueChange={(v) => {
                setDeliveryId(v);
                const opt = deliveryOptions.find((o) => o.id === v);
                if (opt) onSelectDelivery?.(opt);
              }}
              accessibilityLabel="Delivery speed"
              className="gap-2"
            >
              {deliveryOptions.map((opt) => {
                const selected = opt.id === deliveryId;
                return (
                  <View
                    key={opt.id}
                    className={cn(
                      "rounded-2xl border-2",
                      selected ? "border-[#BEF04C] bg-[#EDF8C4] dark:bg-[#1E2410]" : "border-transparent bg-[#F4F5F9] dark:bg-white/5"
                    )}
                  >
                    {/* The item is just the ring — row content is overlaid with
                        pointerEvents="none" so the whole row stays one target. */}
                    <RadioGroupItem
                      value={opt.id}
                      className="w-full px-4 py-4"
                      accessibilityLabel={`${opt.label}, ${opt.detail}, ${
                        opt.price === 0 ? "free" : fmt(opt.price, currency)
                      }`}
                    />
                    <View
                      pointerEvents="none"
                      className="absolute inset-0 flex-row items-center justify-between pl-14 pr-4"
                    >
                      <View>
                        <Text variant="small">{opt.label}</Text>
                        <Text variant="muted" className="text-xs">
                          {opt.detail}
                        </Text>
                      </View>
                      <Text variant="small" className="font-semibold tabular-nums">
                        {opt.price === 0 ? "Free" : fmt(opt.price, currency)}
                      </Text>
                    </View>
                  </View>
                );
              })}
            </RadioGroup>
          </View>
        </Mount>

        {/* Payment */}
        <Mount delay={BLOCK_STAGGER * 3}>
          <View className="rounded-3xl bg-white p-5 dark:bg-[#1A1A20]">
            <View className="flex-row items-center justify-between pb-3">
              <Text variant="small" className="font-semibold">
                Payment
              </Text>
              <ChangeButton onPress={onChangePayment} label="Change payment method" />
            </View>
            <View className="flex-row items-center gap-3">
              <BrandMark brand={brandKey(paymentMethod.brand) ?? paymentMethod.brand.toLowerCase()} size={36} />
              <View className="flex-1">
                <Text variant="small" className="tabular-nums">
                  •••• {paymentMethod.last4}
                </Text>
                {paymentMethod.expiry ? (
                  <Text variant="muted" className="text-xs">
                    Expires {paymentMethod.expiry}
                  </Text>
                ) : null}
              </View>
              <View className="rounded-full bg-[#EDF8C4] px-2.5 py-1 dark:bg-[#1E2410]">
                <Text className="text-[10px] font-bold uppercase tracking-wider text-[#3F6212] dark:text-[#BEF04C]">
                  Default
                </Text>
              </View>
            </View>
          </View>
        </Mount>

      </ScrollView>

      {/* Sticky pay bar — a solid white card so scrolling content never
          bleeds through the buttons. */}
      <StickyBottomBar>
        <View className="gap-3 rounded-3xl bg-white p-4 shadow-sm dark:bg-[#1A1A20]">
        {error ? (
          <Text variant="small" accessibilityRole="alert" className="text-destructive">
            {error}
          </Text>
        ) : null}
        {/* Wallet-style express pay — bordered surface voice, quieter than
            the Pay slab it sits above. */}
        <Button
          tone="surface"
          icon={<Icon name="zap" size="sm" color="foreground" />}
          onPress={() => {
            haptics.light();
            onExpressPay?.();
          }}
          accessibilityLabel={`Express checkout, ${fmt(total, currency)}`}
        >
          Express checkout
        </Button>
        <View
          className="flex-row items-center gap-3"
          accessibilityElementsHidden
          importantForAccessibility="no"
        >
          <Separator className="flex-1" />
          <Text variant="muted" className="px-1 text-xs">
            or pay with card
          </Text>
          <Separator className="flex-1" />
        </View>
        {/* The commit action is the ink slab — reads above everything
            else on the sticky bar. */}
        <Button
          size="lg"
          tone="inverse"
          haptic="heavy"
          disabled={error != null && error.length > 0}
          icon={<Icon name="lock" size="sm" color="primaryForeground" />}
          onPress={() => {
            haptics.success();
            onPlaceOrder?.();
          }}
          accessibilityLabel={`Pay ${fmt(total, currency)}`}
          className="w-full bg-[#1B1B26]"
        >
          Pay {fmt(total, currency)}
        </Button>
        <View
          className="flex-row items-center justify-center gap-1.5 self-center"
          accessibilityElementsHidden
          importantForAccessibility="no"
        >
          <Icon name="shield" size="sm" color="#65A30D" />
          <Text variant="muted" className="text-xs">
            Secure checkout · 256-bit encrypted
          </Text>
        </View>
        </View>
      </StickyBottomBar>
    </SafeAreaView>
  );
}
agent prompt — paste into Claude Code, Cursor, Devin…
Recreate the "Checkout Screen" screen in React Native using LumioUI.

Goal: Grouped address, delivery-speed radio-row, and payment cards with a live order summary, express-checkout CTA, and a shadowed sticky secure pay bar Match the reference implementation's layout, behavior, and motion exactly — this is a production screen, not a mockup.

## Setup

Fastest path — install the screen plus its component deps:

```bash
npx lumioui add ecommerce-checkout
```

Or pull just the components: `npx lumioui add badge button card gradient-button icon radio-group separator text`

Native packages:
- @lumioui/ui@latest
- @lumioui/core@latest
- react-native-safe-area-context@*
- react-native-reanimated@*
- react-native-svg@*
- nativewind@*

Stack assumptions: Expo SDK 54 / RN 0.81, Reanimated 4, NativeWind v4, TypeScript strict, Expo Go compatible.

## Components — how, where, when

### `badge` — Compact status pill with variants, icons and pulse option.
- imported but not rendered directly — likely used through a sibling or as a utility

### `button` — Tactile pill button with press spring, ink wash and async loading.
- `<Button>` ×2 — Wallet-style express pay — bordered surface voice, quieter than the Pay slab it sits above.

### `card` — Compound surface — header, title, content and footer slots.
- imported but not rendered directly — likely used through a sibling or as a utility

### `gradient-button` — Brand-gradient CTA pill with spring press, ink wash, and loading crossfade — flat face, no gloss — the Signature checkout/upgrade button.
- imported but not rendered directly — likely used through a sibling or as a utility

### `icon` — Lucide icon set mapped to theme colors and sizes.
- `<Icon>` ×6

### `radio-group` — Single-select options with animated indicator.
- `<RadioGroup>` ×1
- `<RadioGroupItem>` ×1 — The item is just the ring — row content is overlaid with pointerEvents="none" so the whole row stays one target.

### `separator` — Hairline rule with orientation and spacing control.
- `<Separator>` ×2

### `text` — Themed type scale from caption to display.
- `<Text>` ×27

## Conventions (non-negotiable)

- Styling via NativeWind `className` with semantic tokens only: `bg-background`, `text-foreground`, `bg-card`, `text-card-foreground`, `bg-secondary`, `bg-muted`, `text-muted-foreground`, `bg-accent`, `bg-destructive`, `border-border`. Hard-coded colors only inside media overlays (`text-white`, `bg-black/N`).
- Motion via the token presets from `@lumioui/core` (`spring.press`, `spring.surface`, `spring.glide`, `timing.fast`, `timing.slow`, …) — no bespoke spring configs or durations.
- Gate transform motion behind `useReducedMotion()`; keep opacity/color feedback, drop travel and overshoot.
- Haptics via `useHaptic()`: `light` on press, `selection` on toggle/select, `warning` on invalid input. Never import expo-haptics directly.
- Press feedback via `usePressAnimation()` (~0.97 scale), not `activeOpacity` tricks.
- a11y: `accessibilityRole` + `accessibilityLabel` on every control, touch targets ≥44pt.
- Entrance choreography: staggered `Mount` wrappers (delay 0/60/120…) so regions land in sequence instead of popping in at once.
- Wrap the screen in `SafeAreaView`; keep dark mode working via the semantic tokens.

## Deliverable

One file: `screens/ecommerce/checkout.tsx` exporting CheckoutScreen. Preserve the props interface — the host app wires the callbacks (navigation, submit handlers) through them.

## Reference implementation

The LumioUI source for this screen — reproduce it faithfully:

```tsx
import * as React from "react";
import { useState } from "react";
import { View, ScrollView } from "react-native";
import { SafeAreaView, useSafeAreaInsets } from "react-native-safe-area-context";
import { Button, Glass, Icon, RadioGroup, RadioGroupItem, Separator, Text } from "@lumioui/ui";
import { cn, useHaptic } from "@lumioui/core";
import { BLOCK_STAGGER, BrandMark, LumioMark, MONO, Mount, Press, StickyBottomBar, brandKey } from "../shared";

export interface CheckoutAddress {
  name: string;
  line1: string;
  line2?: string;
  city: string;
  postalCode: string;
  country?: string;
}

export interface PaymentMethod {
  brand: string;
  last4: string;
  expiry?: string;
}

export interface DeliveryOption {
  id: string;
  label: string;
  /** e.g. "5–7 business days" */
  detail: string;
  price: number;
}

export interface OrderSummary {
  itemCount: number;
  subtotal: number;
  /** Base shipping for the default delivery option. */
  shipping: number;
  tax?: number;
  total: number;
}

export interface CheckoutScreenProps {
  address?: CheckoutAddress;
  paymentMethod?: PaymentMethod;
  deliveryOptions?: DeliveryOption[];
  summary?: OrderSummary;
  currency?: string;
  /** Inline validation message shown above the pay bar; disables ordering while set. */
  error?: string;
  onPlaceOrder?: () => void;
  /** Wallet-style one-tap pay above the card CTA. */
  onExpressPay?: () => void;
  onChangeAddress?: () => void;
  onChangePayment?: () => void;
  onSelectDelivery?: (option: DeliveryOption) => void;
  onBack?: () => void;
}

const DEFAULT_ADDRESS: CheckoutAddress = {
  name: "Amara Chen",
  line1: "421 Harbor Lane",
  line2: "Apt 5B",
  city: "San Francisco, CA",
  postalCode: "94107",
  country: "United States",
};

const DEFAULT_PAYMENT: PaymentMethod = { brand: "Visa", last4: "4821", expiry: "09/28" };

const DEFAULT_DELIVERY: DeliveryOption[] = [
  { id: "standard", label: "Standard", detail: "5–7 business days", price: 0 },
  { id: "express", label: "Express", detail: "2–3 business days", price: 12 },
  { id: "priority", label: "Priority", detail: "Next business day", price: 24 },
];

// Same bag the cart screen ships: overcoat $248 + boots $295 + 2× tee $170
// = $713, 8.5% tax → $60.61, Standard delivery free → $773.61.
const DEFAULT_SUMMARY: OrderSummary = {
  itemCount: 4,
  subtotal: 713,
  shipping: 0,
  tax: 60.61,
  total: 773.61,
};

/** Prices always render with two decimals ($628.00). */
const fmt = (n: number, currency = "$") =>
  `${currency}${n.toLocaleString("en-US", { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`;

function ChangeButton({ onPress, label }: { onPress?: () => void; label: string }) {
  if (!onPress) return null;
  return (
    <Press
      onPress={onPress}
      accessibilityRole="button"
      accessibilityLabel={label}
      hitSlop={12}
      className="min-h-11 justify-center px-2"
    >
      <Text variant="small" className="font-semibold text-[#65A30D]">
        Change
      </Text>
    </Press>
  );
}

/** Checkout — grouped address, delivery, payment and summary sections with a
 *  sticky secure "Pay" bar. */
export function CheckoutScreen({
  address = DEFAULT_ADDRESS,
  paymentMethod = DEFAULT_PAYMENT,
  deliveryOptions = DEFAULT_DELIVERY,
  summary = DEFAULT_SUMMARY,
  currency = "$",
  error,
  onPlaceOrder,
  onExpressPay,
  onChangeAddress,
  onChangePayment,
  onSelectDelivery,
  onBack,
}: CheckoutScreenProps) {
  const haptics = useHaptic();
  const insets = useSafeAreaInsets();
  const [deliveryId, setDeliveryId] = useState(deliveryOptions[0]?.id ?? "");

  const delivery = deliveryOptions.find((o) => o.id === deliveryId) ?? deliveryOptions[0];
  const shipping = delivery?.price ?? summary.shipping;
  const total = summary.subtotal + shipping + (summary.tax ?? 0);

  return (
    <SafeAreaView className="flex-1 bg-[#F4F5F9] dark:bg-[#111114]" edges={["top"]}>
      {/* Floating chrome — back disc + centered brand/title pill. */}
      <View pointerEvents="box-none" className="absolute inset-x-4 z-10" style={{ top: insets.top + 8 }}>
        <View className="flex-row items-center justify-between">
          <Glass interactive effect="regular" className="h-11 w-11 items-center justify-center rounded-full">
            <Press
              haptic="light"
              onPress={() => onBack?.()}
              accessibilityRole="button"
              accessibilityLabel="Go back"
              className="h-9 w-9 items-center justify-center"
            >
              <Icon name="chevron-left" size="md" color="foreground" />
            </Press>
          </Glass>
          <View className="h-11 w-11" />
        </View>
        <View pointerEvents="none" className="absolute inset-0 items-center justify-center">
          <View className="h-11 flex-row items-center justify-center gap-2 rounded-full pl-3.5 pr-5">
            <Glass effect="regular" className="absolute inset-0 rounded-full" />
            <LumioMark size={18} />
            <Text accessibilityRole="header" className="text-sm font-bold tracking-tight">
              Checkout
            </Text>
          </View>
        </View>
      </View>

      <ScrollView
        className="flex-1"
        showsVerticalScrollIndicator={false}
        contentContainerClassName="gap-4 px-6 pb-60"
        contentContainerStyle={{ paddingTop: insets.top + 60 }}
        contentInsetAdjustmentBehavior="automatic"
      >
        {/* Total hero — dark gradient card leads the screen: the number
            the user is about to commit, with the line items underneath.
            Raw hex is art direction (like StoryChrome). */}
        <Mount>
          <View className="overflow-hidden rounded-3xl bg-[#1B1B26]">
            <View className="gap-4 p-5">
              <View className="flex-row items-center justify-between">
                <Text className="text-xs font-medium uppercase tracking-wider text-white/50">
                  Order total · {summary.itemCount} {summary.itemCount === 1 ? "item" : "items"}
                </Text>
                <View className="rounded-full bg-[#BEF04C] px-2.5 py-1">
                  <Text className="text-[10px] font-bold uppercase tracking-wider text-[#1B1B26]">
                    Lumio Market
                  </Text>
                </View>
              </View>
              <Text className="text-[32px] font-bold tracking-tight text-white" style={{ fontFamily: MONO, fontVariant: ["tabular-nums"] }}>
                {fmt(total, currency)}
              </Text>
              <View className="gap-1 border-t border-white/10 pt-3">
                <View className="flex-row items-center justify-between py-0.5">
                  <Text className="text-xs text-white/60">Subtotal</Text>
                  <Text className="text-xs text-white tabular-nums">{fmt(summary.subtotal, currency)}</Text>
                </View>
                <View className="flex-row items-center justify-between py-0.5">
                  <Text className="text-xs text-white/60">
                    Shipping{delivery ? ` (${delivery.label})` : ""}
                  </Text>
                  <Text className="text-xs text-white tabular-nums">
                    {shipping === 0 ? "Free" : fmt(shipping, currency)}
                  </Text>
                </View>
                {summary.tax != null ? (
                  <View className="flex-row items-center justify-between py-0.5">
                    <Text className="text-xs text-white/60">Tax</Text>
                    <Text className="text-xs text-white tabular-nums">{fmt(summary.tax, currency)}</Text>
                  </View>
                ) : null}
                {/* Sustainability line — checkouts increasingly carry it. */}
                <View className="flex-row items-center gap-1.5 pt-1.5">
                  <Icon name="leaf" size="sm" color="#BEF04C" />
                  <Text className="text-[11px] text-white/60">
                    Carbon-neutral shipping on this order
                  </Text>
                </View>
              </View>
            </View>
          </View>
        </Mount>

        {/* Address */}
        <Mount delay={BLOCK_STAGGER}>
          <View className="rounded-3xl bg-white p-5 dark:bg-[#1A1A20]">
            <View className="flex-row items-center justify-between pb-3">
              <Text variant="small" className="font-semibold">
                Shipping address
              </Text>
              <ChangeButton onPress={onChangeAddress} label="Change shipping address" />
            </View>
            <View className="flex-row gap-3">
              <View className="h-10 w-10 items-center justify-center rounded-full bg-[#EDF8C4] dark:bg-[#1E2410]">
                <Icon name="map-pin" size="sm" color="#65A30D" />
              </View>
              <View className="flex-1 gap-0.5">
                <Text variant="small">{address.name}</Text>
                <Text variant="muted">
                  {address.line1}
                  {address.line2 ? `, ${address.line2}` : ""}
                </Text>
                <Text variant="muted">
                  {address.city} {address.postalCode}
                  {address.country ? `, ${address.country}` : ""}
                </Text>
              </View>
            </View>
          </View>
        </Mount>

        {/* Delivery options */}
        <Mount delay={BLOCK_STAGGER * 2}>
          <View className="rounded-3xl bg-white p-5 dark:bg-[#1A1A20]">
            <Text variant="small" className="pb-3 font-semibold">
              Delivery
            </Text>
            <RadioGroup
              value={deliveryId}
              onValueChange={(v) => {
                setDeliveryId(v);
                const opt = deliveryOptions.find((o) => o.id === v);
                if (opt) onSelectDelivery?.(opt);
              }}
              accessibilityLabel="Delivery speed"
              className="gap-2"
            >
              {deliveryOptions.map((opt) => {
                const selected = opt.id === deliveryId;
                return (
                  <View
                    key={opt.id}
                    className={cn(
                      "rounded-2xl border-2",
                      selected ? "border-[#BEF04C] bg-[#EDF8C4] dark:bg-[#1E2410]" : "border-transparent bg-[#F4F5F9] dark:bg-white/5"
                    )}
                  >
                    {/* The item is just the ring — row content is overlaid with
                        pointerEvents="none" so the whole row stays one target. */}
                    <RadioGroupItem
                      value={opt.id}
                      className="w-full px-4 py-4"
                      accessibilityLabel={`${opt.label}, ${opt.detail}, ${
                        opt.price === 0 ? "free" : fmt(opt.price, currency)
                      }`}
                    />
                    <View
                      pointerEvents="none"
                      className="absolute inset-0 flex-row items-center justify-between pl-14 pr-4"
                    >
                      <View>
                        <Text variant="small">{opt.label}</Text>
                        <Text variant="muted" className="text-xs">
                          {opt.detail}
                        </Text>
                      </View>
                      <Text variant="small" className="font-semibold tabular-nums">
                        {opt.price === 0 ? "Free" : fmt(opt.price, currency)}
                      </Text>
                    </View>
                  </View>
                );
              })}
            </RadioGroup>
          </View>
        </Mount>

        {/* Payment */}
        <Mount delay={BLOCK_STAGGER * 3}>
          <View className="rounded-3xl bg-white p-5 dark:bg-[#1A1A20]">
            <View className="flex-row items-center justify-between pb-3">
              <Text variant="small" className="font-semibold">
                Payment
              </Text>
              <ChangeButton onPress={onChangePayment} label="Change payment method" />
            </View>
            <View className="flex-row items-center gap-3">
              <BrandMark brand={brandKey(paymentMethod.brand) ?? paymentMethod.brand.toLowerCase()} size={36} />
              <View className="flex-1">
                <Text variant="small" className="tabular-nums">
                  •••• {paymentMethod.last4}
                </Text>
                {paymentMethod.expiry ? (
                  <Text variant="muted" className="text-xs">
                    Expires {paymentMethod.expiry}
                  </Text>
                ) : null}
              </View>
              <View className="rounded-full bg-[#EDF8C4] px-2.5 py-1 dark:bg-[#1E2410]">
                <Text className="text-[10px] font-bold uppercase tracking-wider text-[#3F6212] dark:text-[#BEF04C]">
                  Default
                </Text>
              </View>
            </View>
          </View>
        </Mount>

      </ScrollView>

      {/* Sticky pay bar — a solid white card so scrolling content never
          bleeds through the buttons. */}
      <StickyBottomBar>
        <View className="gap-3 rounded-3xl bg-white p-4 shadow-sm dark:bg-[#1A1A20]">
        {error ? (
          <Text variant="small" accessibilityRole="alert" className="text-destructive">
            {error}
          </Text>
        ) : null}
        {/* Wallet-style express pay — bordered surface voice, quieter than
            the Pay slab it sits above. */}
        <Button
          tone="surface"
          icon={<Icon name="zap" size="sm" color="foreground" />}
          onPress={() => {
            haptics.light();
            onExpressPay?.();
          }}
          accessibilityLabel={`Express checkout, ${fmt(total, currency)}`}
        >
          Express checkout
        </Button>
        <View
          className="flex-row items-center gap-3"
          accessibilityElementsHidden
          importantForAccessibility="no"
        >
          <Separator className="flex-1" />
          <Text variant="muted" className="px-1 text-xs">
            or pay with card
          </Text>
          <Separator className="flex-1" />
        </View>
        {/* The commit action is the ink slab — reads above everything
            else on the sticky bar. */}
        <Button
          size="lg"
          tone="inverse"
          haptic="heavy"
          disabled={error != null && error.length > 0}
          icon={<Icon name="lock" size="sm" color="primaryForeground" />}
          onPress={() => {
            haptics.success();
            onPlaceOrder?.();
          }}
          accessibilityLabel={`Pay ${fmt(total, currency)}`}
          className="w-full bg-[#1B1B26]"
        >
          Pay {fmt(total, currency)}
        </Button>
        <View
          className="flex-row items-center justify-center gap-1.5 self-center"
          accessibilityElementsHidden
          importantForAccessibility="no"
        >
          <Icon name="shield" size="sm" color="#65A30D" />
          <Text variant="muted" className="text-xs">
            Secure checkout · 256-bit encrypted
          </Text>
        </View>
        </View>
      </StickyBottomBar>
    </SafeAreaView>
  );
}
```

Screen: https://lumioui.dev/screens/ecommerce-checkout
Pixel 10 · Android
9:41
Live preview — the real screen via Expo Web · open full ↗