/* 7-Segment "red" skin — the classic colour these boards almost always
   shipped in. Add a sibling skin redefining these variables for another
   LED colour. */
:root {
    --s7-bg: #15100d;
    --s7-panel: #1c1613;
    --s7-line: rgba(255, 255, 255, 0.06);
    --s7-text: #e9dfd2;
    --s7-muted: #8a7d6d;
    --s7-on: #ff3b30;
    --s7-on-glow: rgba(255, 59, 48, 0.65);
    --s7-off: #3a1210;
}