.deepdoc-hero {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-canvas);
}

.deepdoc-hero-inner {
  padding-top: clamp(56px, 8vw, 104px);
  padding-bottom: clamp(58px, 8vw, 108px);
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, .55fr);
  gap: clamp(38px, 7vw, 88px);
  align-items: end;
}

.deepdoc-hero-copy,
.deepdoc-index-card {
  min-width: 0;
}

.deepdoc-hero h1 {
  max-width: 800px;
  margin-top: 22px;
}

.deepdoc-hero .lead {
  max-width: 760px;
  margin: 24px 0 0;
}

.deepdoc-intro {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--color-muted);
  font-size: 15px;
}

.deepdoc-intro a {
  color: var(--color-accent-dark);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.deepdoc-facts {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.deepdoc-index-card {
  padding: 28px;
  border-top: 4px solid var(--color-accent);
  background: var(--color-console);
  color: var(--color-console-text);
}

.deepdoc-index-label {
  margin-bottom: 16px;
  color: var(--color-warning);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .1em;
}

.deepdoc-index-card h2 {
  margin-bottom: 16px;
  color: var(--color-console-text);
  font-size: clamp(26px, 3vw, 36px);
}

.deepdoc-index-card > p {
  color: var(--color-console-muted);
  font-size: 14px;
}

.deepdoc-index-card dl {
  margin: 26px 0 0;
  display: grid;
  gap: 18px;
}

.deepdoc-index-card dl div {
  padding-top: 16px;
  border-top: 1px solid var(--color-console-line);
}

.deepdoc-index-card dt {
  color: var(--color-warning);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
}

.deepdoc-index-card dd {
  margin: 6px 0 0;
  color: var(--color-console-text);
  font-size: 13px;
}

.deepdoc-article {
  padding-top: clamp(54px, 8vw, 98px);
  padding-bottom: clamp(54px, 8vw, 98px);
}

.doc-section {
  padding-top: clamp(48px, 7vw, 86px);
  padding-bottom: clamp(58px, 8vw, 102px);
  display: grid;
  grid-template-columns: minmax(180px, .34fr) minmax(0, 1fr);
  gap: clamp(30px, 6vw, 78px);
  border-bottom: 1px solid var(--color-line);
}

.doc-section:first-child {
  padding-top: 0;
}

.section-marker {
  min-width: 0;
}

.section-marker span {
  display: block;
  color: var(--color-accent-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .1em;
}

.section-marker p {
  max-width: 220px;
  margin: 12px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.doc-content {
  max-width: 800px;
}

.doc-content > h2:first-child {
  margin-bottom: 42px;
}

.doc-content h3 {
  margin-top: 42px;
  font-size: clamp(21px, 2.4vw, 27px);
}

.doc-content h2 + h3 {
  margin-top: 0;
}

.doc-content p {
  margin-bottom: 20px;
}

.doc-content .table-scroll {
  margin-block: 34px;
}

.doc-content pre {
  margin-block: 28px;
}

.diagnostic-grid {
  margin-block: 36px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.diagnostic-card {
  min-width: 0;
  padding: 24px;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.diagnostic-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 19px;
}

.diagnostic-card p {
  margin-bottom: 0;
  font-size: 14px;
}

.deepdoc-next {
  margin-top: clamp(54px, 8vw, 96px);
  padding: clamp(28px, 5vw, 48px);
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(240px, .75fr);
  gap: 34px;
  align-items: end;
  background: var(--color-panel);
}

.deepdoc-next h2 {
  margin-bottom: 12px;
}

.deepdoc-next p {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--color-muted);
}

.deepdoc-next-links {
  display: grid;
  border-top: 1px solid var(--color-line-strong);
}

.deepdoc-next-links a {
  min-height: 52px;
  padding: 13px 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--color-line-strong);
  color: var(--color-ink);
  font-weight: 750;
}

.deepdoc-next-links a:hover {
  color: var(--color-accent-dark);
}

.deepdoc-next-links span {
  color: var(--color-accent);
}

@media (max-width: 900px) {
  .deepdoc-hero-inner,
  .doc-section,
  .deepdoc-next {
    grid-template-columns: 1fr;
  }

  .deepdoc-index-card {
    max-width: 680px;
  }

  .section-marker {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 18px;
    align-items: start;
  }

  .section-marker p {
    max-width: 420px;
    margin-top: 0;
  }

  .doc-content {
    max-width: none;
  }
}

@media (max-width: 640px) {
  .deepdoc-hero-inner {
    padding-top: 42px;
    padding-bottom: 58px;
  }

  .deepdoc-index-card {
    padding: 22px;
  }

  .deepdoc-article {
    padding-top: 48px;
    padding-bottom: 58px;
  }

  .doc-section {
    padding-top: 54px;
    padding-bottom: 64px;
  }

  .section-marker {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .doc-content > h2:first-child {
    margin-bottom: 32px;
  }

  .doc-content h3 {
    margin-top: 34px;
  }

  .diagnostic-grid {
    grid-template-columns: 1fr;
  }

  .deepdoc-next {
    padding: 24px 20px;
  }
}