Learn to create a responsive admin dashboard for crypto/banking applications using HTML, CSS, and JavaScript in this comprehensive tutorial. Master modern CSS techniques including Grid, Flexbox, Variables, and Media Queries to ensure responsiveness across devices. Implement light and dark theme functionality with JavaScript and CSS Variables. Follow step-by-step instructions to build the dashboard's components, including navigation bar, sidebar, cards, monthly reports, fast payment section, charts, investments, and recent transactions. Gain practical experience in responsive design and theme customization while developing a fully functional and visually appealing admin interface.