On phones the credit line kept white-space: nowrap, so map plus outline credits ran past the right edge and cut off the Data attribution link. Cesium's credit block is absolutely positioned inside #cesium-credits, so the box needs a real width for the credits to wrap: give it the screen width divided by its 0.8 scale, overriding the dock's width: auto !important the way the phone offset already does. Desktop keeps its one-line rule.
At 720px and narrower the globe stays full screen and a bottom tab bar (Layers,
Cameras, Context, Search, More) opens one bottom sheet at a time, presenting the
existing rail and dock panels in place. Sheets borrow panels without persisting
or sharing them and put back what they changed. Cockpit, recording and clean
view close the sheet; scene playback keeps STOP reachable. Focus moves into the
sheet and back to its tab, the required attribution stays visible above the
voice control and any sheet, and the page uses safe-area insets. Wider
viewports are unchanged.
Adapted from the phone tab-shell proposed in #203 by @blearymoth.
manjunath