Checkout Flow

Create a multi-step checkout flow:

1. LAYOUT
- Clean, distraction-free design
- Progress indicator (steps 1-4)
- Order summary sidebar (collapsible on mobile)
- Trust badges in footer
- Minimal header (logo + help link only)

2. STEP 1: INFORMATION
Guest vs Account:
- "Checkout as guest" option
- "Sign in" for existing customers
- "Create account" checkbox (optional)

Contact Information:
- Email address (for order confirmation)
- Phone number (for delivery updates)

Shipping Address:
- Full name
- Address line 1
- Address line 2 (optional)
- City
- State/Province (dropdown)
- Postal code
- Country (dropdown)
- "Save this address" checkbox

"Continue to Shipping" button

3. STEP 2: SHIPPING
Shipping Methods:
- Radio button selection
- Standard Shipping - Free (5-7 business days)
- Express Shipping - $9.99 (2-3 business days)
- Next Day - $19.99 (Next business day)
- Each shows estimated arrival date

Delivery Instructions (optional):
- Text area for special instructions
- Checkbox for "Leave at door"

"Continue to Payment" button

4. STEP 3: PAYMENT
Payment Methods:
- Credit/Debit Card (default)
- PayPal
- Apple Pay / Google Pay
- Klarna/Afterpay (buy now, pay later)

Credit Card Form:
- Card number (with card type icon detection)
- Expiration date (MM/YY)
- CVV (with tooltip explanation)
- Name on card
- "Save card for future purchases" checkbox

Billing Address:
- "Same as shipping" checkbox (default checked)
- Or separate billing address form

"Review Order" button

5. STEP 4: REVIEW & PLACE ORDER
Order Review:
- List all items with images, names, quantities, prices
- Shipping address (with "Edit" link)
- Shipping method (with "Edit" link)
- Payment method (with "Edit" link)

Order Summary:
- Subtotal
- Shipping
- Tax
- Discount
- Total

Terms:
- Checkbox for terms acceptance
- Links to Terms and Privacy Policy

"Place Order" button (prominent)

6. ORDER CONFIRMATION
- "Thank you for your order!"
- Order number
- Confirmation email sent message
- Order summary
- Estimated delivery
- "Track Order" button
- "Continue Shopping" link
- Account creation prompt (if guest)

Design: Minimal distractions, clear progress, trust signals everywhere. Single-page checkout is also valid.