Glassmorphism Auth Flow (Sign Up & Sign In)

by Madhav

HTML CSS JavaScript
A visually stunning, single-page authentication web application engineered with HTML5, CSS3, and Vanilla JavaScript, featuring a modern Glassmorphism UI aesthetic. Designed entirely without external UI frameworks or heavy styling libraries, this project demonstrates advanced CSS styling, dynamic backdrop blur effects, animated background gradients, and seamless form state management.

The application features dynamic form toggling that allows users to switch fluidly between registration and login interfaces without page reloads. Key technical implementations include comprehensive client-side form validation, real-time input sanitization, dynamic regular expression pattern matching for phone numbers, strong password security enforcement, duplicate account detection logic, and custom error/success toast notifications.

Built with modern CSS Flexbox, Grid, and pseudo-elements, the responsive interface guarantees proper alignment, visual hierarchy, cross-browser compatibility, and smooth performance on mobile and desktop viewports.
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