The settings panel (16 sliders ≈ 900px) overflowed past the window
bottom at short heights and stretched the whole page scrollable. The
coverage dropdown's pattern is the standard for top-anchored popups
overflowing viewport bounds: max-h-[60vh] keeps a floor of free space
above the window bottom at any height, and the inner column gets
overflow-y-auto (which also zeroes the flex item's automatic
min-height so it actually shrinks) — the panel scrolls internally, the
page never scrolls.
Live-verified in the dev shell at emulated 640px and 1000px viewports:
panel caps at exactly 60vh (384px @ 640h, 192px bottom gap), inner
scroll reaches the physics section (412px travel), docScrollable false
at both heights.
amosblomqvist
d1ba0c5c3c