Sorry, I ran out of time yesterday (we are in the UK). Styling snippets for the submit button can be found using this forum search:
https://support.searchandfilter.com/forums/search/data+form+sf+id+searchandfilter+sf-field-submit+input/
For placing the form above the results, instead of in the sidebar, you would have to do this in your theme or page builder. But I can see you have done this, so what do you need to do with this form now? Are you looking to arrange the fields more efficiently?
That becomes far more complicated, and you would need to seek the services of a third party CSS coder to help you with that. The styling help I have given this far was outside the scope of our support, but not too hard for me, but to do this would be far more complex.
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