.topic-hero {
  padding: 48px 24px 36px;
  background:
    linear-gradient(135deg, rgba(197, 160, 89, 0.12), transparent 55%),
    rgba(30, 41, 59, 0.5);
  border-bottom: 1px solid var(--border);
}

.topic-hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.topic-hero.hero-strip .topic-hero-inner {
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
}

.topic-hero .eyebrow {
  font-size: 12px;
  color: var(--primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 8px;
}

.topic-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  max-width: 18ch;
  margin-bottom: 10px;
}

.topic-hero .lead {
  color: var(--muted);
  max-width: 48ch;
}

.topic-layout {
  max-width: var(--max);
  margin: 0 auto;
  padding: 36px 24px 72px;
  display: grid;
  gap: 24px;
}

.topic-layout.with-rail {
  grid-template-columns: 1fr 280px;
  align-items: start;
}

.topic-prose {
  display: grid;
  gap: 14px;
}

.topic-prose h2 {
  font-size: 1.2rem;
  color: var(--primary);
  margin-top: 8px;
}

.topic-prose h3 {
  font-size: 1.05rem;
  margin-top: 4px;
}

.topic-prose p,
.topic-prose li {
  color: var(--accent);
  font-size: 0.95rem;
}

.topic-prose ul {
  padding-left: 1.15rem;
  display: grid;
  gap: 8px;
}

.stat-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.stat-band .stat {
  padding: 16px;
  text-align: center;
  border-radius: 14px;
  background: rgba(11, 14, 26, 0.7);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.stat-band .stat strong {
  display: block;
  font-size: 1.35rem;
  color: var(--primary);
}

.stat-band .stat span {
  font-size: 0.75rem;
  color: var(--muted);
}

.pull-quote {
  padding: 22px 24px;
  border-left: 3px solid var(--primary);
  background: rgba(197, 160, 89, 0.08);
  border-radius: 0 14px 14px 0;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 600;
}

.side-rail {
  position: sticky;
  top: 64px;
  padding: 18px;
  border-radius: 16px;
  background: rgba(11, 14, 26, 0.78);
  border: 1px solid var(--border);
  backdrop-filter: blur(14px);
  display: grid;
  gap: 12px;
}

.side-rail h2 {
  font-size: 0.95rem;
  color: var(--primary);
}

.side-rail p {
  font-size: 0.82rem;
  color: var(--muted);
}

.split-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.split-columns .col {
  padding: 18px;
  border-radius: 14px;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid var(--border);
}

.image-rail {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.image-rail .band {
  height: 160px;
  border-radius: 12px;
  background-size: cover;
  background-position: center;
  border: 1px solid var(--border);
  max-width: 100%;
}

.mosaic-band {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 12px;
  align-items: stretch;
}

.callout {
  padding: 16px 18px;
  border-radius: 12px;
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 0.9rem;
}

@media (max-width: 860px) {
  .topic-hero.hero-strip .topic-hero-inner,
  .topic-layout.with-rail,
  .split-columns,
  .stat-band,
  .image-rail,
  .mosaic-band {
    grid-template-columns: 1fr;
  }

  .side-rail {
    position: static;
  }

  .topic-hero,
  .topic-layout {
    padding-left: 16px;
    padding-right: 16px;
  }

  .decor-clip,
  .decor-img,
  .image-rail .band,
  .mosaic-band .band {
    max-width: 100%;
    overflow: hidden;
  }
}

@media (max-width: 375px) {
  .topic-hero h1 {
    max-width: none;
  }

  .decor-img {
    max-width: 100%;
    max-height: 180px;
  }

  .image-rail .band,
  .mosaic-band .band {
    height: 120px;
    max-width: 100%;
  }
}