Text File Encryption and Decryption Web Application.

In this task, you will create a web application using HTML$,$ CSS$,$ and JavaScript that allows users to read English text from a text file, encrypt or decrypt the content using a custom encryption or decryption method, and save the encrypted or decrypted message to a text file. The application should provide a user$-$friendly interface with file loading, saving, encryption, and decryption mechanisms.

Requirements:

User Interface:

a$)$ Create an HTML page with a user$-$friendly interface.

b$)$ Design and style the interface using CSS to make it visually appealing.

c$)$ Include a file input element to allow users to select a text file. d$)$ Display the selected file's name on the interface.

e$)$ Provide buttons for encryption and decryption.

f$)$ Display the encrypted or decrypted text on the interface.

g$)$ Include a button to save the encrypted or decrypted text to a file

File Loading:

a$)$ Implement JavaScript code to handle file loading.

b$)$ When a user selects a text file using the file input element, read the content of the file.

c$)$ Display the content of the file on the interface

Encryption:

a$)$ Implement a custom encryption method using JavaScript.

b$)$ Write JavaScript code that takes the loaded text file content and encrypts it$.$

c$)$ Display the encrypted text on the interface.

Decryption:

a$)$ Implement a custom decryption method using JavaScript.

b$)$ Write JavaScript code that takes the loaded text file content and decrypts it$.$

c$)$ Display the decrypted text on the interface.

Saving Encrypted or Decrypted Text:

a$)$ Implement JavaScript code to handle saving the encrypted or decrypted text to a file.

b$)$ When the user clicks the save button, convert the encrypted or decrypted text into a downloadable file.

c$)$ Prompt the user to save the file with a chosen name.

Note: Fronted page colourful $,$ animation and use template $.$The possibilities to create custom encryption and decryption methods are endless, hence it is expected that your solution is unique.