I need help writing the specification document of a web application.
I don't need you to develop the web application, I just need you to write the specifications, including the mockup.
The web application will be developed in PHP and use an API.
The mockup should be very easy because the app fits into 1 or 2 pages.
The web application is pretty simple and I estimate that it should not take you more than 15 hours to write the specs.