To-Do List Web App — HTML, CSS & JavaScript

Description:

I need a simple task manager web app built with pure HTML, CSS, and JavaScript (no frameworks or libraries). The app should include:

A text input field with an ADD button to create new tasks

Tasks displayed as cards in a list below

A Delete button on each task to remove it

Support for adding tasks by pressing Enter

Clean modern design: purple background, white rounded cards, smooth animations

Single .html file — no external dependencie