Webapp Using Firebase and PHP -- 2

I need someone to create a website for me using Firebase and PHP The reason for using Firebase is easy mobile apps migration once the web app is complete Structure of the website Login Page - Login with Google, Facebook, Apple. NO EMAIL AND PASSWORD and No Hence Registration Page User Profile Page with tons of details as per other pages. (Read below) Courses Module Category - Free or Paid Courses have Sections and each section has chapters These chapters are webpages basically Each page has a Video, Text, images. (Its backend part needs to be able to provide the ability to add these elements nicely in whatever order I want. Also, there can be multiple videos or text, or images on the same page. So backend is important. Also, Text should support MARKDOWN as well as a RICH TEXT EDITOR Quiz Module Category - Free or Paid Quizzes are full-fledged exams of 100-200 questions where all questions are either Checkbox or Radio Every question should map to a chapter of the course and should be graded. In the end, It should show advanced analytics to the user about which questions are wrong, which chapters they have to study, Which topics, and which courses. Basically a breakdown of their performance as per individual chapters as well as Topics and courses. (Check Course Module Point B for the structure) It should also store their previous test performance over 30 days and should allow comparisons Payment Module - As courses and quizzes both have a payment section so the profile of people needs to have this as well. We will be using [login to view URL] flash checkout API.