I already have the overall layout planned and the copy drafted; what I need now is polished front-end code that brings the concept to life. The page must be built with plain HTML5, Bootstrap 5 and custom CSS, and it has to feel equally smooth on mobile, tablet and desktop. Core sections I expect from you: • Hero section that features a strong, visually clear call-to-action (I’m open to your suggestion on whether it should be a Sign-Up, Learn-More, or Download button). • Responsive card grid for key highlights or features. • Contact form (fields: name, email, message) that is visually consistent with the rest of the design; I will handle server-side processing, so only the front-end markup and basic client-side validation are required. • Clean footer holding copyright text and social media links. Quality checklist for hand-off: • Uses Bootstrap utilities rather than heavy custom classes where possible. • SCSS or well-commented CSS so I can tweak colors and spacing later. • Cross-browser testing done on the latest Chrome, Firefox, Safari, and Edge. • All images and assets optimized; page should score well on Lighthouse performance and accessibility. Please package the final deliverable as a single .zip containing index.html, css (or scss) folder, assets folder, and a brief README that explains file structure and how to change primary brand colors. If you have portfolio examples of similar landing pages, feel free to link them so I can gauge style fit.