More details about the responsive design approach with variable breakpoints you may find in my UX Collective article.
Lots of thanks to Supamotion production, Atlant-M Britania and Atlant-M Holpi to make this possible.
Kudos to the rest of the design team for a great work:
UI Design: Aliaksandra Maliukevich
Styleguide and Project Landing: Nastia Piven
Visual and UI Design: Andrew Durkin
CJM visualization: Dina Leonova