I need a full–stack HVAC website modeled closely after 3rdgospelheating.net, but built from the ground up so it is clean, fast, and easy for customers to use. The single most important function is secure online booking and payment: every service order must flow through a PayPal checkout that displays my standard service agreement right before payment is confirmed. In addition to PayPal, the same checkout should seamlessly accept regular credit and debit cards so customers who prefer not to log in to PayPal can still pay in one step. I already have hosting ready; once the site is complete I want you to deploy it there, connect the domain, and verify everything is live. Please handle both the front-end (modern, mobile-first design that reflects a trustworthy HVAC brand) and the back-end (appointments stored in a database, confirmation emails, and an admin view where I can see upcoming jobs, mark them as completed, and issue refunds if needed). When we finish I expect: • Fully responsive website with service pages, contact details, and clear calls to action • PayPal + direct card gateway operating in production mode with my service agreement embedded in the flow • Live deployment on my hosting with SSL, tested and ready for customers If you plan to use frameworks—React, Next.js, Laravel, Node, whatever works best—let me know so I can keep future maintenance straightforward.