Captive portal (pfsense) - + Own system

The project consists in creating a captive portal web site (that will work together with pfsense software - please check the requirements for pfsense external captive portal). The portal will be the authentication page for a Wi-Fi network. It will consist from about 5 informational web pages, including also a coverage map, based on google maps. It will exist 2 workflow (that will work without the reload of the page / ajax): 1) unregistered users - they should create an account (by introducing all the required information or by integrating with social network account), confirm the account with a code recieved on sms (integration with sms gateway api), after this the user will select a package (integration with a billing system via api), and pay using some payment systems (integration with a merchant). 2) registered users - they will use username & password for authentication, or a social network account (facebook, linkedin...). As design of the web pages - it will be a windows 8 style (we have only the png template). The portal should have also a mobile version for small displays. The portal should be tested to work on any browser.