Airbnb / realtor grammar — the detail page dissolves to a full-screen vertical photo viewer. Photos stack at their natural aspect ratios on cream with a 3px gutter between, reading as a magazine seam. No app chrome beyond a close chevron. Close returns to the recipe detail (V); the cook's photo story ends here. The sub-flow below is what happens later, when the cook navigates back to the library through the app's nav — a separate re-entry into the book.