.topic-hero-strip {
  position: relative;
  padding: 56px 24px 40px;
  background:
    radial-gradient(circle at 70% 30%, rgba(220, 38, 38, 0.14), transparent 55%),
    linear-gradient(180deg, var(--surface), var(--bg));
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.topic-hero-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 39px,
    rgba(250, 250, 250, 0.02) 39px,
    rgba(250, 250, 250, 0.02) 40px
  );
  pointer-events: none;
}

.topic-hero-inner {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
}

.topic-hero-strip h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  margin-bottom: 12px;
}

.topic-hero-strip p {
  color: var(--muted);
  max-width: 62ch;
}

.topic-prose {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.topic-prose h2 {
  margin: 32px 0 12px;
  font-size: 1.3rem;
}

.topic-prose h3 {
  margin: 22px 0 10px;
  font-size: 1.05rem;
  color: var(--secondary);
}

.topic-prose p {
  margin-bottom: 14px;
  color: rgba(250, 250, 250, 0.9);
  max-width: 72ch;
}

.topic-prose ul {
  padding-left: 1.2rem;
  margin: 0 0 18px;
  max-width: 68ch;
}

.topic-prose li {
  margin-bottom: 8px;
  color: rgba(250, 250, 250, 0.88);
}

.topic-stat-band {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 24px 0;
}

.topic-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 16px;
  text-align: center;
}

.topic-stat strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  margin-bottom: 4px;
}

.topic-stat span {
  font-size: 0.78rem;
  color: var(--muted);
}

.topic-split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: start;
  margin: 24px 0;
}

.topic-rail {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 20px;
  position: sticky;
  top: 72px;
}

.topic-rail h3 {
  margin: 0 0 12px;
  font-size: 0.95rem;
  color: var(--primary);
}

.topic-rail ol {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--muted);
}

.topic-pull {
  margin: 28px 0;
  padding: 24px;
  border-left: 3px solid var(--secondary);
  background: rgba(250, 204, 21, 0.06);
  font-size: 1.15rem;
  line-height: 1.4;
  color: var(--text);
}

.topic-table-wrap {
  overflow-x: auto;
  margin: 20px 0;
  border: 1px solid var(--border);
}

.topic-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.topic-table th,
.topic-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.topic-table th {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--secondary);
  background: rgba(21, 21, 21, 0.9);
}

.topic-mosaic {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 20px 0;
}

.topic-mosaic .decor-band {
  height: 140px;
  margin: 0;
}

.topic-callout {
  margin: 24px 0;
  padding: 18px 20px;
  border: 1px solid rgba(22, 163, 74, 0.35);
  background: rgba(22, 163, 74, 0.08);
}

.topic-callout strong {
  display: block;
  color: var(--accent);
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.layout-licencias {
  display: grid;
  gap: 20px;
}

.layout-slots-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 20px 0;
}

.slot-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 20px;
}

.slot-panel h3 {
  margin-top: 0;
}

.bonus-ladder {
  display: grid;
  gap: 0;
  margin: 24px 0;
  border: 1px solid var(--border);
}

.bonus-rung {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.bonus-rung:last-child {
  border-bottom: none;
}

.bonus-rung .rung-id {
  font-family: var(--font-mono);
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 768px) {
  .topic-split,
  .topic-mosaic,
  .layout-slots-cols {
    grid-template-columns: 1fr;
  }

  .topic-rail {
    position: static;
  }

  .topic-prose,
  .topic-hero-strip {
    overflow-x: hidden;
  }

  .topic-prose .decor-img,
  .topic-hero-strip .decor-img,
  .topic-mosaic .decor-band {
    max-width: 100%;
    overflow: hidden;
  }

  .topic-prose .decor-img {
    max-height: 200px;
  }
}

@media (max-width: 375px) {
  .topic-prose .decor-img {
    max-height: 160px;
  }

  .topic-mosaic .decor-band {
    height: 100px;
  }
}