looks like a student's project rather than a legit gambling website,to be honest with you
a piece of advice-do not attempt to create anything that you do not have money to run
a gambling site requires a certain bank to be able to sustain losses,do you have any proof of funds?that you can pay me if I win?
there is no login system,come on it is 2018-any problem with my browser's cache or cookies and I lose all my money
not going to check the provably fair there since the things I posted above should be enough to get discouraged from depositing real money
A very very basic html programming which same as you said this really looks like a students project which is submitted into its instructor rather than a gambling site.As said above i dont even know on where should i click because of poor GUI.
On all of the factors you had said this is already signifying that this site wont be trust-able 100%.I wont risk on depositing funds.