Category pages, navbar to footer: the live catalog on its own or under a seasonal sale band, with category and price filters, a sort and a count that follows them as they change. Two finished pages.
A section is one full-width band: a hero, a pricing table, a footer. A page stacks several of them into a finished screen, from the navbar to the footer. The sections are the parts, the page is one tested way to put them together.
Koala UI