While designing a new layout for the internal portal, Lena Sato realized that the varying heights of the data widgets created deep valleys across the interface. Eva Harrington suggested adding a clever weather effect where virtual rain fills these gaps, and she asked Lena to write a utility to calculate exactly how much water would be trapped between the blocks. For example, if a row of widgets had heights like 4, 2, 0, 3, 2, and 5, the tool should determine that the dips would hold a total of 9 units of water. Mark Patel is waiting for this logic so he can finalize the animation for the next team update.