I need an end-to-end mortgage-focused website that does more than just look good—it must streamline lead capture, automate WhatsApp interactions, and keep our internal accounts tidy. The public site should be responsive, fast, and feature an AI-powered search so visitors see only mortgage-related answers, articles, and rate details. A built-in loan calculator is also essential. User access is limited to two roles—Admin and Employee—each entering through a secure login protected by WhatsApp OTP verification. Once inside, the dashboard must let us: • Manage users and leads: view, filter, assign, and update statuses in real time • Handle basic invoicing and accounts: generate, email, and download simple invoices; log incoming payments • Update content through a CMS: edit FAQs, rates, and banners without touching code Behind the scenes, the system should maintain a clean relational database for all users, leads, invoices, and content items. A floating Business WhatsApp icon on every page will open a chat with our official number for quick support. Deliverables will be considered complete when: 1. WhatsApp OTP sign-up/login works on desktop and mobile. 2. Admin and Employee dashboards show accurate, editable data pulled from the database. 3. Invoices can be created, emailed, and recorded inside the accounts module. 4. The AI search returns relevant mortgage content only, with no off-topic results. 5. All content areas are editable through the CMS. 6. Site passes a basic security and performance check. Building stacks are flexible as long as they support WhatsApp API integration and future scalability. Let me know your preferred tech, timeline, and any similar projects you’ve delivered.