Screens
A screen is one page of your app or website.
Screens live as cards on the Map; double-clicking one opens it in the page editor. Inside, everything is components in frames. The frame is the one container, and structure is turned on by naming it: free placement, stack, or grid.
Screens link to each other through navigation components and goto buttons. A screen opened by navigation mounts with its own wired data; moving between screens never smuggles access.
What you design is what publishes: a heading tagged h2 publishes as a real h2, a frame tagged nav publishes as a real nav. Meaning for readers and search, never pixels.