Learn to build a responsive React portfolio website from scratch in this comprehensive tutorial. Discover modern React and CSS best practices while creating a feature-rich portfolio with theme customization, animate-on-scroll effects, and a filterable project showcase. Master React Hooks, Context API, and custom hooks while implementing a floating navbar, auto-scroll testimonials, and FAQ toggles. Gain practical skills in CSS positioning, Flexbox, and Grid systems to create a professional, responsive design that persists user preferences in local storage.