The design was made in Figma and then we made a custom WordPress theme and added custom code. Text and images are added with ACF (Advanced Custom Fields).
Cart and Checkout are both implemented in the sidebar. There is also an option just to send a Custom Order form from sidebar.
aviamisto mobile layout

aviamisto.com shop page
aviamisto.com shop page
aviamisto.com product page
aviamisto.com product page
aviamisto.com multi-step checkout sidebar
aviamisto.com multi-step checkout sidebar