Below 600px `.panel-content` is `width: 100%`, so the scrim sat entirely underneath an opaque panel -- measured at 424x439, host, panel and scrim all 424x318. It dimmed nothing and dismissed nothing there while wearing `cursor: pointer`, so #24's tap-outside-to-close did not exist on the device it was drawn for. Of the issue's two directions this takes the second. A gutter is the drawer pattern and buys the affordance by taking width off a full-screen surface on a 424px viewport; #55 already made the queue a *screen* at that width, whose ways out are back and a 44px close button. So there is no scrim there rather than an unreachable one. Existence is `matchMedia` rather than `display: none`, on `job-band`'s rule: a hidden scrim is still an element carrying the handler. The 600-899 band, where the panel is a 320px column of a wider content area and the scrim has real uncovered pixels, is untouched. The e2e half asserts *absence* at 424x439 rather than clicking, because a phone-width case that clicks the scrim's centre hits the panel and passes on the broken build -- which the issue anticipates. Closes #171