I have a client who has an "idea" of his project "that is in his mind". He said he is not going to share any details, knowledge, and ideas until we have a contract because as he's saying "he's worried about someone stealing his ideas". However, in our first meeting on the client side, I think I got a global overview what he wants to have (generally). Now he's awaiting my offer and that's where I stack on to prepare it to him including price.
Should I just prepare an offer on the knowledge I have? For instance I know he wants an application to create an article/edit it, associate with some elements blabla... However, we haven't talked about details, how this information should be inserted by users etc.
Should I propose just my view generally and prepare an offer with price how I see this and how this could be done giving general information on an offer and final price? However what about details, should them be on this offer or just general list and later on we should talk about this? I am bit confused. Please of your advice.
P.S If that's wrong place to ask please advice where shall it be opened.