need a clean, fast, and responsive single-page website built in one file/page format. The website will be scroll-based with navigation links in a fixed header. Sections required on the same page: Header with Menu: Home, About, Service, Contact Home Section – Professional intro content About Section – Brief company overview Service Section – Keep it as Demo placeholder for now (content services will be updated later) Contact Section – A simple contact form (name, email, message, submit) Contact Form Requirements: Lightweight and functional UI No backend needed right now, just frontend form Should look professional and modern Fields: Full Name, Email, Message + Submit Button Design Expectations: Minimal and premium feel Mobile + Desktop responsive Smooth scroll navigation Placeholder content must be easy to update later Fast loading and clean code Tech Preference (optional for dev to choose): HTML + Tailwind CSS (preferred) or any modern framework that fits single-page delivery. Deliverables: Fully working single-page website Clean and well-structured code Easy section updates for future content changes