.post-subtitle {
  margin-top: -0.3rem;
  margin-bottom: 1.2rem;
  font-size: clamp(1.02rem, 2.2vw, 1.3rem);
  line-height: 1.3;
  opacity: 0.9;
}

.lead-block {
  margin-bottom: 1.2rem;
}

.sdmatch-main-figure {
  margin: 0.2rem auto 1.25rem;
  width: min(980px, 100%);
  padding: clamp(0.45rem, 1.4vw, 0.75rem);
  border: 1px solid color-mix(in oklab, var(--rule) 72%, transparent);
  border-radius: 12px;
  background: color-mix(in oklab, var(--bg) 86%, white 14%);
  box-shadow: 0 12px 28px rgba(30, 30, 30, 0.08);
}

.sdmatch-main-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.sdmatch-main-figure figcaption {
  margin: 0.6rem auto 0;
  max-width: min(760px, 92%);
  text-align: center;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.goto-link {
  font-size: 0.62em;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-decoration: underline;
  text-underline-offset: 2px;
  opacity: 0.45;
  margin-left: 0.55em;
  vertical-align: middle;
}

.goto-link:hover {
  opacity: 0.85;
}

.prologue-questions {
  margin: 0.55rem auto 0.95rem auto;
  width: min(820px, 96%);
  text-align: center;
}

.prologue-questions p {
  margin: 0.24rem 0;
  font-size: clamp(1.12rem, 2.6vw, 1.5rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.sigreg-lab-kicker {
  margin: 0 0 0.18rem 0;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.sigreg-caption {
  margin: 0.45rem auto 0;
  max-width: min(760px, 92%);
  text-align: center;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.sdmatch-demo {
  margin: 1rem auto 0.55rem auto;
  width: min(980px, 100%);
}

.sdmatch-demo-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.45rem;
}

.sdmatch-demo-head h3 {
  margin: 0;
}

.sdmatch-demo-actions {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

#sdmatch-reset-btn,
#sdmatch-step-btn,
#sdmatch-auto-btn,
#sigreg-reset-btn,
#sigreg-step-btn,
#sigreg-auto-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.48rem 0.85rem;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--ink) 22%, transparent);
  background: color-mix(in oklab, var(--bg) 78%, white 22%);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(255,255,255,0.5) inset;
  transition: background 140ms ease, transform 140ms ease, box-shadow 140ms ease;
}

#sdmatch-reset-btn:hover,
#sdmatch-step-btn:hover,
#sdmatch-auto-btn:hover,
#sigreg-reset-btn:hover,
#sigreg-step-btn:hover,
#sigreg-auto-btn:hover {
  background: color-mix(in oklab, var(--bg) 68%, white 32%);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(30, 30, 30, 0.08);
}

#sdmatch-canvas,
#sigreg-canvas {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid color-mix(in oklab, var(--rule) 72%, transparent);
  border-radius: 12px;
  background:
    linear-gradient(
      180deg,
      color-mix(in oklab, var(--bg) 98%, white 2%),
      color-mix(in oklab, var(--bg) 94%, #eef5f1 6%)
    );
}

.sdmatch-legend {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
  color: var(--ink-dim);
  font-size: 0.9rem;
}

.sdmatch-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.sdmatch-swatch {
  width: 0.85rem;
  height: 0.85rem;
  display: inline-block;
  border-radius: 999px;
}

.sdmatch-real {
  background: #126a5a;
}

.sdmatch-fake {
  background: #d35d2f;
}

.sdmatch-line {
  background: #2a2a2a;
}

.sdmatch-result-figure {
  margin: 1rem auto 1.35rem auto;
  width: min(900px, 100%);
}

.sdmatch-result-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid color-mix(in oklab, var(--rule) 72%, transparent);
  border-radius: 12px;
  background: color-mix(in oklab, var(--bg) 92%, white 8%);
}

.sdmatch-result-figure figcaption {
  margin: 0.6rem auto 0;
  max-width: min(760px, 92%);
  text-align: center;
}

pre {
  overflow-x: auto;
}

pre code {
  font-size: 0.84rem;
}

@media (max-width: 720px) {
  .sdmatch-demo-head {
    align-items: stretch;
    flex-direction: column;
  }

  .sdmatch-demo-actions {
    justify-content: flex-start;
  }
}