Follow a comprehensive step-by-step tutorial to create a responsive multi-page website using HTML, CSS, and JavaScript. Learn modern web development techniques including CSS Flexbox, CSS Grid, and CSS Variables to build a fully functional site with a contact form, testimonial section featuring slide effects using SwiperJS, and a FAQ toggle. Explore responsive design principles to ensure your website looks great on all devices, from mobile phones to desktops. Gain practical experience in structuring project files, implementing CSS root variables, importing Google Fonts, and creating various sections like headers, product displays, and footers. By the end of this 2-hour tutorial, you'll have the skills to develop a professional, customizable website from scratch.