Website UI/UX Overhaul

I already have the complete source code of my website, which was initially generated with AI. I need an experienced web developer/UI-UX designer to professionally improve the existing website without changing its core functionality. Main requirements: * Make the website look professionally designed by a real human, not AI-generated. * Improve the complete UI/UX and visual hierarchy. * Create a clean, modern and trustworthy design. * Improve typography, spacing, alignment, buttons, cards, forms and navigation. * Make all pages visually consistent with the same design system. * Improve header, footer, dashboard and other sections wherever required. * Make the website fully responsive for mobile, tablet and desktop. * Mobile UI is especially important because many users will access it from phones. * Remove unnecessary/repetitive elements and improve the overall layout. * Fix any visual bugs, overlapping elements or responsiveness issues. * Improve loading performance where possible. * Clean up the existing HTML/CSS/JS/code structure where required. * Keep the existing features and functionality working properly. * Do not unnecessarily rebuild the entire project from scratch. * Make the final result look like a professionally developed commercial website. * Use consistent colors, fonts, icons, borders, shadows and spacing. * Add subtle professional animations/interactions only where they improve UX. * Ensure forms, buttons, menus and dashboard elements work correctly. * Check the website on different screen sizes and browsers. Important: I will provide the existing source code. Your job is primarily to improve the design, UI/UX, responsiveness and professional appearance while preserving the existing functionality. Before starting, please review my source code and show me a few examples/screenshots of your previous UI/UX work.