create an amazing mega menu in Joomla

We have a Joomla website in the making, we have completed it, but still we need your help to create a mega menu for us, that will look great and be consistent with our current template. Responsiveness is also needed. At the moment Ice mega Menu is installed in the website and it is used as a standard menu, but you could use any other Extension that you like, including paid ones, that we will buy for you (for example JUX mega menu). In the process, you are supposed not to break any part of the site :). I will send you full details once you start bidding. You are also supposed to create the CSS that you need to achieve the result we described., Please start the bid with "mega" Please do not bid if you do not have good experience with mega menus, you'd waste everybody's time.