Hello Sir/Mam,
I am expert Web Designer. I have gone through your requirements. I am able to create this type of animation For you. I am really interested to do your work. Sir i am not sure this can be integrated with squarespace or not but yes we can create it using HTML5/CSS3 and jquery framwork.
I have good skills in HTML5/CSS3, Jquery, Javascript, Squarespace, Wordpress, Woocommerce, and Joomla. You can see my portfolio and customer reviews on my freelancer profile.
Please discuss further details in message/chat.
Regards
Ravinder Singh