:root { color-scheme: light dark; --fg: #10151c; --bg: #fbfcfd; --muted: #5a6572;
  --line: #d8dee6; --ok: #0f6d3f; --warn: #8a5a00; --bad: #8c2b18; }
@media (prefers-color-scheme: dark) {
  :root { --fg: #e8ecf1; --bg: #11151a; --muted: #9aa5b1; --line: #2b333d;
    --ok: #67d29a; --warn: #e0b060; --bad: #f0907c; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 0.5rem; top: 0.5rem; padding: 0.5rem; background: var(--bg);
  outline: 2px solid currentColor; z-index: 2; }
.topbar { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center;
  justify-content: space-between; padding: 1rem 1.25rem; border-bottom: 1px solid var(--line); }
.brand { font-weight: 600; }
.brand-mark { display: inline-grid; place-items: center; width: 1.6rem; height: 1.6rem;
  border: 1px solid var(--line); border-radius: 0.4rem; margin-right: 0.35rem; }
main { padding: 1.25rem; max-width: 72rem; margin: 0 auto; }
footer { padding: 1.25rem; border-top: 1px solid var(--line); color: var(--muted);
  max-width: 72rem; margin: 0 auto; }
h2 { margin: 0 0 0.75rem; font-size: 1.35rem; }
.gpu-status { margin: 0 0 1rem; }
.gpu-badge { display: inline-block; padding: 0.15rem 0.5rem; border-radius: 0.35rem;
  border: 1px solid currentColor; font-size: 0.85rem; text-transform: uppercase;
  letter-spacing: 0.03em; }
.gpu-badge--verified { color: var(--ok); }
.gpu-badge--stale, .gpu-badge--preserved { color: var(--warn); }
.gpu-badge--unavailable, .gpu-badge--malformed { color: var(--bad); }
.gpu-distinction { color: var(--muted); border-left: 3px solid var(--line);
  padding-left: 0.75rem; }
.gpu-facts { display: grid; grid-template-columns: max-content 1fr; gap: 0.25rem 1rem;
  margin: 0 0 1rem; }
.gpu-facts dt { color: var(--muted); }
.gpu-facts dd { margin: 0; font-variant-numeric: tabular-nums; }
.gpu-fact-definition { grid-column: 1 / -1; color: var(--muted); font-size: 0.875rem;
  margin: -0.1rem 0 0.35rem !important; }
.gpu-offers { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.gpu-offers th, .gpu-offers td { text-align: left; padding: 0.4rem 0.5rem;
  border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.gpu-sources { color: var(--muted); padding-left: 1.1rem; }
.gpu-reason { color: var(--bad); }
@media (max-width: 40rem) {
  .gpu-facts { grid-template-columns: 1fr; }
  .gpu-facts dd { margin-bottom: 0.4rem; }
  .gpu-offers thead { position: absolute; left: -9999px; }
  .gpu-offers tr { display: grid; grid-template-columns: 1fr 1fr; gap: 0.2rem 0.6rem;
    padding: 0.5rem 0; border-bottom: 1px solid var(--line); }
  .gpu-offers td { border: 0; padding: 0; }
}