Responsive Product Sales Landing Page

I need a clean, modern, and fully responsive one-page landing page built with vanilla HTML, CSS, and JavaScript. The page will showcase a single product for general consumers, so every section must funnel visitors toward a clear purchase call-to-action.

Core layout
• Hero header with a bold CTA button
• Feature section highlighting key benefits or specifications
• Concise product overview paragraph with supporting visuals
• Footer containing basic links and contact information

Technical notes
The markup should be semantic, CSS organised and commented, and any JavaScript limited to lightweight interactions such as smooth scrolling and a mobile menu—no heavy frameworks unless we agree otherwise. I’ll be testing on mobile, tablet, and desktop widths; the design must adapt flawlessly and load quickly (aiming for 90+ on Lighthouse performance and accessibility).

Timeline & budget
Turnaround is 3–5 days and the project sits in a beginner-friendly budget range, so an efficient, self-contained solution is ideal.

Deliverables
1. index.html, styles.css, and script.js
2. Optimised images or icons with clear licensing
3. Brief read-me with setup instructions

Acceptance criteria: responsive behaviour across major browsers, functioning CTAs, and fast load performance. If this fits your skill set, let’s get started.