/* The closings' ground: the painted wall instead of the blurred glow (client 17 Oct: "rather the painted wall", option C of
   explore/closing-footer-study, grounds.html; the rule is that study's "wall" block, without its [data-ground] switch).
   Applies to every dark closing (.cl): the industry pages and the industries index, the product pages and the products index,
   Security and the case study. Not the oculus closings (About, Approach: .cl-oculus keeps its painting) and not the home page
   (its closing is its own section, .close, not a .cl). Only the ground changes: words, field, button, sizes and spacing stay.
   The wall: the green plaster wall of the home closing's painting (close_desk_2, cropped above the orb), full bleed at its own
   colour and light; a flat colour from the same wall shows while the picture loads. */
.cl:not(.cl-oculus)::before{content:none}
.cl:not(.cl-oculus)>.glow{display:none}
.cl:not(.cl-oculus){background:#4f5840 url(../../img/ground_wall.webp) 50% 0 / cover no-repeat}
/* on a coloured ground the field's deep drop shadow (made for black, where it is invisible) would show as a dark smudge under the
   field; it keeps only its glass edge and a short contact shadow */
.cl:not(.cl-oculus) .mail{box-shadow:var(--glass-edge),0 10px 24px rgba(0,0,0,.18)}
.cl:not(.cl-oculus) .mail:focus-within{box-shadow:var(--glass-edge),0 0 0 2px rgba(255,255,255,.7),0 10px 24px rgba(0,0,0,.18)}
/* under the painted wall the footer's thin top rule is not needed: the edge from wall to black marks it (client 17 Oct: "when green
   section exists, footer top border not needed"). The rule keeps its 1 px, only its colour goes, so nothing moves. Elsewhere it stays. */
body:has(main>.cl:not(.cl-oculus)) .foot-top{border-top-color:transparent}