.deepdoc-intro {
  position: relative;
  overflow-x: clip;
  padding-top: clamp(72px, 9vw, 116px);
  padding-bottom: clamp(58px, 8vw, 96px);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-canvas);
}

.deepdoc-intro::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-mesh) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-mesh) 1px, transparent 1px);
  background-size: 34px 34px;
  content: "";
  mask-image: linear-gradient(90deg, transparent, var(--color-text), transparent);
  opacity: 0.42;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(90deg, transparent, var(--color-text), transparent);
}

.deepdoc-intro .reading-wrap {
  position: relative;
  z-index: 1;
}

.deepdoc-intro h1 {
  max-width: 720px;
  margin-bottom: 20px;
}

.deepdoc-lead {
  max-width: 740px;
  margin-bottom: 24px;
  color: var(--color-text-muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.72;
}

.deepdoc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
}

.deepdoc-meta span {
  display: inline-flex;
  max-width: 100%;
  min-height: 32px;
  align-items: center;
  padding: 5px 11px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.doc-opening {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(24px, 5vw, 64px);
  margin-bottom: 28px;
}

.doc-opening h2 {
  margin-bottom: 0;
  font-size: clamp(25px, 3vw, 36px);
}

.doc-opening p:last-child {
  margin-bottom: 0;
}

.doc-opening a {
  color: var(--color-accent-deep);
  font-weight: 750;
  text-decoration: underline;
  text-decoration-color: var(--color-border);
  text-underline-offset: 0.2em;
}

.deepdoc-toc {
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.deepdoc-body {
  padding-top: 12px;
  padding-bottom: 24px;
}

.deepdoc-body > section {
  padding-top: clamp(64px, 8vw, 100px);
  padding-bottom: clamp(52px, 7vw, 84px);
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: calc(var(--header-height) + 18px);
}

.deepdoc-body > section:last-child {
  border-bottom: 0;
}

.deepdoc-body h2 {
  margin-top: 0;
}

.deepdoc-body h3 {
  padding-top: 4px;
}

.deepdoc-body pre {
  margin-top: 28px;
  margin-bottom: 30px;
}

.deepdoc-body .data-table {
  margin-top: 28px;
  margin-bottom: 30px;
}

.reference-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(24px, 5vw, 64px);
  padding: clamp(28px, 5vw, 48px);
  border: 1px solid var(--color-dark-edge);
  border-radius: var(--radius-panel);
}

.reference-next .eyebrow {
  color: var(--color-dark-muted);
}

.reference-next h2 {
  margin-bottom: 12px;
  color: var(--color-dark-text);
}

.reference-next p {
  max-width: 690px;
  margin-bottom: 0;
  color: var(--color-dark-muted);
}

.reference-next .button-dark {
  border-color: var(--color-dark-edge);
}

@media (max-width: 760px) {
  .doc-opening,
  .reference-next {
    grid-template-columns: minmax(0, 1fr);
  }

  .deepdoc-meta {
    align-items: stretch;
  }

  .deepdoc-meta span {
    flex: 1 1 180px;
    justify-content: center;
  }

  .reference-next .button-row {
    align-items: stretch;
  }

  .reference-next .button {
    flex: 1 1 190px;
  }
}

@media (max-width: 420px) {
  .deepdoc-meta span {
    flex-basis: 100%;
  }

  .deepdoc-body .keyword-lock {
    white-space: normal;
  }

  .deepdoc-body pre {
    padding: 17px;
    font-size: 12px;
  }
}