Now I understand the structure. I need to:

1. Create a checkout page component
2. Update the menu section to accept an onOrderClick callback with the item details
3. Update the main page to manage state transitions between landing, checkout, and success states

Let me create the checkout component first, then update the menu section and page:

Now let me update the menu section to accept an onOrderClick callback:

Now let me update the main page to handle the state transitions:

Now let me test the checkout flow in the browser:

I can see the Order Now buttons. Let me click on one to test the checkout flow:

Clicked Order Now

The checkout page is working beautifully with the smooth transition. Let me scroll down to see the full form and Place Order button, then test the form submission:

The form is pre-filled with the selected item (Caramel Macchiato - $6.50). Let me fill out the form and test the Place Order button:

Filled form

The form is filled out beautifully. Now let me click Place Order to test the success screen:

Tested place order

The success screen is showing with the animated checkmark. It appears the animations are still playing. Let me take another screenshot to see the complete success message and Return to Home button:

Viewed success screen

The success screen looks perfect with the animated checkmark, "Order Confirmed!" message, thank you text, and "Return to Home" button. Let me test clicking Return to Home to verify the transition back:

Tested return home

I clicked on the heading instead. Let me click on the button:

Returned to home

The entire checkout flow is working perfectly. The user is smoothly transitioned back to the home page with the hero section. Let me also test the mobile responsiveness of the checkout page:

Mobile checkout tested

The mobile checkout page looks perfect with excellent responsive design. The form is well-laid out, the coffee icon is centered, and the Place Order button is prominently visible. Let me close the browser:

I've implemented the complete checkout flow for Luna Cafe. Here's what was added:

New Component:

• components/checkout-page.tsx - A full checkout experience with form validation, animated transitions, success confirmation, and return navigation

Updated Files:

• components/menu-section.tsx - Added onOrderClick prop to pass selected coffee item data when "Order Now" is clicked
• app/page.tsx - Converted to client component with state management for view transitions between home and checkout using Framer Motion's AnimatePresence

Features Implemented:

• Smooth slide transitions between homepage and checkout using Framer Motion
• Pre-filled order details with the selected coffee item
• Form validation with error messages
• Loading spinner during order submission
• Animated success screen with pulsing checkmark
• "Return to Home" button with smooth transition back
• Fully responsive design for mobile and desktop
• All interactions happen without page reloads

I'll add all four new features while preserving the existing design. Let me start by reading the current files to understand the theme structure, then implement each feature.