/* ═══ THEME: ORPHAN (the uncounted wells) ═══
   Deep-earth dark: a wellbore line descends the page's edge, gas
   wisps rise (the canvas above), invoice-red ledger accents. The
   debt the surface forgot. */
body[data-theme="orphan"] {
  --stage-bg: #070708;
  --stage-accent: #c9403a;
  --stage-ink: #e4ddd2;
  --stage-ink-dim: #8f8880;
  --stage-title: #f0e6d8;
  --parchment: #0e0d10;
  --parchment-edge: rgba(201, 64, 58, .32);
  --wheel-color: #6a6158;
  background:
    radial-gradient(1000px 600px at 50% 120%, rgba(201, 64, 58, .08), transparent 55%),
    linear-gradient(180deg, #0a0a0c 0%, #070708 40%, #050506 100%);
}
/* the wellbore: a vertical casing pipe on the left margin */
body[data-theme="orphan"] .doc-parchment::before {
  content: ''; position: absolute; top: 0; bottom: 0; left: 22px; width: 7px;
  background:
    linear-gradient(90deg, #1a1a1e 0 2px, #2c2c31 2px 5px, #101013 5px 6px, transparent 6px);
  box-shadow: 0 0 8px rgba(0, 0, 0, .7);
  opacity: .8;
}
/* seep rings around the casing */
body[data-theme="orphan"] .doc-parchment::after {
  content: ''; position: absolute; top: 30%; left: 14px; width: 26px; height: 26px;
  border-radius: 50%;
  border: 2px solid rgba(201, 64, 58, .2);
  box-shadow: 0 0 14px rgba(201, 64, 58, .12);
}