A Simple Responsive Website is Needed

Overview I need a browser-based web application for real-time communication between students and instructors during lectures. It will be used to collect and organize messages. The website needs to be simple and easy-to-use. Detailed Specifications I. user accounts A. standard web application authentication scheme B. user sessions must be implemented with a back-end store for scalability C. no account page is required; however users cannot start a lecture without being authenticated II. token based session access scheme A. automatic generation of user friendly, expiring token strings that grant access to sessions B. must support roles (a student token, a moderator token, an instructor token) that will take the end-user to their appropriate interface (see below) III. responsive landing page A. authentication forms B. static marketing content 1. the who, what, when and where information of the application 2. a list of available features 3. information about the team C. a slideshow that illustrates how the application works D. a contact form E. when viewed from a mobile device, a portal for entering a lecture token must be prominently shown; all the above features must still be accessible F. when viewed from a non-mobile device, the marketing material must be prominently shown; a portal for entering a lecture token must also exist IV. role-based front-end SPA’s (single page applications) A. interfaces: 1. student interface a) display basic information about the lecture b) send questions, comments and responses with an optional name 2. instructor interface a) optimized for giving a presentation or speech while simultaneously navigating through and responding to student responses b) block a student from sending additional responses if the instructor deems a previous response offensive 3. moderator interface a) optimized for organizing and sorting responses b) mark good responses c) hide responses (for removing from the list) d) block student (similar to the instructor feature above) e) sort responses by time sent f) filter responses by student name, or by bucket (good, hidden, blocked) g) an inbox of responses that the moderator has not yet acted on 4. panelist interface a) optimized for viewing the responses that the moderator has marked as good B. real-time connection 1. all the interfaces except the student interface must be linked in real-time allowing responses to be pushed to the user (the instructor, moderator, or student) without refreshing. C. all actions in the instructor and moderator interfaces must be reversible D. all of the interfaces except the moderator interface must be responsive (be equally accessible on devices of all screen sizes) E. all of the interfaces must be accessible from multiple devices simultaneously (for example, two moderators could both be working on the same response set during the lecture) F. all interfaces must depend on AJAX based HTTP requests - total page refreshing is not allowed within an interface V. system administration A. domain name server management B. production database and web servers must be hosted on different machines C. a backup production database server with failover in case the primary database server crashes D. automatic notification of application errors E. automatic restart on web server crash F. a staging environment for sandboxing new updates in a production environment