Order Summary

Commerce · Button, CartLine, CheckoutSteps, OrderSummary

Cart and checkout pieces: CartLine rows, the OrderSummary with discount code and free-shipping progress, and CheckoutSteps.

CartLine props: name, variant, note, art + tint, price, qty, onQty(n), onRemove (the − button becomes a bin at 1).
OrderSummary props: lines ({name, variant, art, tint, price, qty}), showLines, discount ({code, pct | amount, label}), onCoupon(code) (return false to show "isn’t valid"; null removes), shipping (fixed) or freeShippingFrom (default 75, else €4.90), vat (19, prices include it), title, action (the CTA).
CheckoutSteps props: steps (Cart, Details, Shipping, Payment), current, onPick (go back only).

Keep the summary in a sticky side column on desktop; it moves under the form on phones.
Show what's left for free shipping; it is the strongest nudge in a cart.
Removing a line shows an Undo toast instead of a confirm.

PreviewCode

Halo Cotton TeeM · Sky

€32

Studio MugOnly 6 left

€36

Order summary

1Halo Cotton TeeM · Sky€32

2Studio Mug€36

Add €7 for free shipping

Subtotal: €68
Shipping: €4.90
Total: €72.90
incl. 19% VAT: €11.64

Props

Button

Prop	Type	Notes
`variant?`	`"primary" \| "secondary" \| "soft" \| "ghost" \| "danger" \| "danger-solid"`
`size?`	`"md" \| "sm"`
`icon?`	`IconName`
`iconRight?`	`IconName`
`disabled?`	`boolean`
`type?`	`"button" \| "submit"`
`onClick?`	`(e: MouseEvent<HTMLButtonElement>) => void`
`children?`	`ReactNode`
`className?`	`string`	Extra class on the root element.
`style?`	`CSSProperties`	Inline style on the root element.

CartLine

Prop	Type	Notes
`name`	`string`	Required
`variant?`	`string`
`note?`	`string`
`art`	`ArtKind`	Required
`tint?`	`Tint`
`price`	`number`	Required
`qty`	`number`	Required
`onQty?`	`(n: number) => void`
`onRemove?`	`() => void`
`className?`	`string`	Extra class on the root element.
`style?`	`CSSProperties`	Inline style on the root element.

CheckoutSteps

Prop	Type	Notes
`steps?`	`string[]`
`current?`	`number`
`onPick?`	`(i: number) => void`
`className?`	`string`	Extra class on the root element.
`style?`	`CSSProperties`	Inline style on the root element.

OrderSummary

Prop	Type	Notes
`lines`	`{ name: string; variant?: string; art: ArtKind; tint?: Tint; price: number; qty: number; }[]`	Required
`showLines?`	`boolean`
`discount?`	`Discount \| null`
`onCoupon?`	`(code: string \| null) => boolean \| void`
`shipping?`	`number \| null`
`freeShippingFrom?`	`number`
`vat?`	`number`
`title?`	`string \| false`
`action?`	`ReactNode`
`className?`	`string`	Extra class on the root element.
`style?`	`CSSProperties`	Inline style on the root element.