Responsive Landing Page with Contact Form

I need a clean, fully responsive landing page built with semantic HTML5 and modern CSS (Flexbox/Grid). The page will introduce my service, guide visitors through a concise sales message, and collect enquiries via an embedded contact form.

Here is what I’m expecting:
• One-page layout that adapts smoothly on mobile, tablet, and desktop.
• A contact form styled to match the page design, validated on the client side and ready to hook into my server-side handler (PHP or Node—whatever you prefer, just note it in your proposal).
• Lightweight code, no unnecessary frameworks; if you feel Bootstrap or a utility library will speed things up without bloat, let me know in your approach.

I have a basic grasp of HTML/CSS myself but want this page to look polished and production-ready, so I’m handing the build to someone with a stronger design eye and cleaner code habits.

When you submit your bid, please include a detailed project proposal outlining:
– Your development plan and timeline
– Any similar landing pages you’ve shipped (live links or screenshots)
– How you’ll ensure responsiveness and form security

I’ll review proposals based on clarity, past results, and how well your approach fits the scope above. Looking forward to seeing your ideas and collaborating on a sharp, high-converting landing page.