:root {
  --deepdoc-marker-width: 9rem;
  --deepdoc-section-gap: clamp(68px, 8vw, 108px);
  --deepdoc-copy-size: 17px;
  --deepdoc-copy-leading: 1.88;
  --deepdoc-diagram-gap: clamp(12px, 2vw, 24px);
}

.deepdoc-hero {
  position: relative;
  max-width: 100%;
  padding-top: clamp(62px, 8vw, 108px);
  padding-bottom: clamp(54px, 7vw, 88px);
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background:
    linear-gradient(180deg, var(--color-accent-06), var(--color-transparent)),
    linear-gradient(90deg, var(--color-transparent), var(--color-accent-06), var(--color-transparent));
}

.deepdoc-hero::before,
.deepdoc-hero::after {
  content: "";
  position: absolute;
  border: 1px solid var(--color-accent-14);
  border-radius: var(--radius-round);
  pointer-events: none;
}

.deepdoc-hero::before {
  top: 18%;
  left: -8%;
  width: 28%;
  aspect-ratio: 1;
}

.deepdoc-hero::after {
  right: -6%;
  bottom: 9%;
  width: 22%;
  aspect-ratio: 1;
}

.deepdoc-hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.deepdoc-hero h1 {
  margin-top: 22px;
  margin-bottom: 20px;
}

.deepdoc-hero__lead {
  max-width: 760px;
  margin-right: auto;
  margin-bottom: 0;
  margin-left: auto;
  color: var(--color-text-muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.72;
}

.deepdoc-hero__actions {
  display: flex;
  margin-top: 28px;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.deepdoc-facts {
  display: flex;
  margin-top: 25px;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.deepdoc-facts .chip {
  color: var(--color-text);
  font-family: var(--font-body);
}

.deepdoc-intro {
  padding-top: 44px;
  padding-bottom: 16px;
}

.deepdoc-intro__panel {
  padding: clamp(22px, 4vw, 34px);
  color: var(--color-text-muted);
  font-size: var(--deepdoc-copy-size);
  line-height: var(--deepdoc-copy-leading);
}

.deepdoc-intro__panel p:last-child {
  margin-bottom: 0;
}

.deepdoc-intro__panel a {
  color: var(--color-accent-dark);
  font-weight: 750;
  text-decoration: underline;
  text-decoration-color: var(--color-accent-45);
  text-underline-offset: .18em;
}

.deepdoc-article {
  padding-top: 40px;
  padding-bottom: 28px;
}

.deepdoc-section {
  position: relative;
  max-width: var(--reading-width);
  margin-right: auto;
  margin-left: auto;
  padding-top: var(--deepdoc-section-gap);
  padding-bottom: var(--deepdoc-section-gap);
  border-bottom: 1px solid var(--color-border);
}

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

.deepdoc-section__marker {
  margin-bottom: 14px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
}

.deepdoc-section h2 {
  margin-bottom: 34px;
}

.deepdoc-section h3 {
  margin-top: 42px;
  margin-bottom: 14px;
  padding-left: 16px;
  border-left: 3px solid var(--color-accent);
  font-size: clamp(21px, 2.4vw, 27px);
}

.deepdoc-section h2 + h3 {
  margin-top: 0;
}

.deepdoc-section p,
.deepdoc-section li {
  color: var(--color-text-muted);
  font-size: var(--deepdoc-copy-size);
  line-height: var(--deepdoc-copy-leading);
}

.deepdoc-section p {
  margin-bottom: 1.35em;
}

.deepdoc-section a:not(.btn) {
  color: var(--color-accent-dark);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--color-accent-45);
  text-underline-offset: .18em;
}

.deepdoc-section .callout {
  margin-top: 34px;
  margin-bottom: 34px;
}

.deepdoc-section .callout p {
  font-size: 16px;
  line-height: 1.75;
}

.deepdoc-section .table-scroll {
  margin-top: 32px;
  margin-bottom: 36px;
}

.deepdoc-section .data-table,
.deepdoc-section .comparison-table {
  font-size: 14px;
}

.deepdoc-section .data-table td,
.deepdoc-section .comparison-table td {
  color: var(--color-text-muted);
  line-height: 1.55;
}

.route-diagram {
  display: grid;
  margin-top: 42px;
  margin-bottom: 42px;
  padding: clamp(22px, 4vw, 36px);
  grid-template-columns: auto minmax(70px, 1fr) auto minmax(70px, 1fr) auto;
  align-items: center;
  gap: var(--deepdoc-diagram-gap);
  overflow-x: clip;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  background: var(--color-panel-recessed);
  box-shadow: var(--highlight-inner);
  color: var(--color-accent);
}

.route-diagram__node {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 8px 13px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-panel);
  box-shadow: var(--highlight-inner), var(--shadow-soft);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 750;
  white-space: nowrap;
}

.route-diagram svg {
  width: 100%;
  color: var(--color-accent-55);
}

@media (min-width: 1040px) {
  .deepdoc-section::before {
    content: "";
    position: absolute;
    top: calc(var(--deepdoc-section-gap) + 18px);
    right: calc(100% + 34px);
    width: var(--deepdoc-marker-width);
    height: 1px;
    background: linear-gradient(90deg, var(--color-transparent), var(--color-border));
  }
}

@media (max-width: 768px) {
  :root {
    --deepdoc-copy-size: 16px;
    --deepdoc-copy-leading: 1.8;
  }

  .deepdoc-hero {
    padding-top: 52px;
    padding-bottom: 58px;
  }

  .deepdoc-hero::before,
  .deepdoc-hero::after {
    display: none;
  }

  .deepdoc-hero__actions {
    width: 100%;
    align-items: stretch;
    flex-direction: column;
  }

  .deepdoc-hero__actions .btn {
    width: 100%;
  }

  .deepdoc-intro {
    padding-top: 30px;
  }

  .deepdoc-article {
    padding-top: 28px;
  }

  .deepdoc-section h3 {
    margin-top: 34px;
  }

  .route-diagram {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .route-diagram svg {
    width: 120px;
    margin-right: auto;
    margin-left: auto;
    transform: rotate(90deg);
  }

  .route-diagram__node {
    width: 100%;
    white-space: normal;
  }
}

@media (max-width: 640px) {
  .deepdoc-facts {
    align-items: stretch;
    flex-direction: column;
  }

  .deepdoc-facts .chip {
    width: 100%;
    justify-content: center;
  }

  .deepdoc-intro__panel {
    padding: 20px 17px;
  }

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

  .deepdoc-section h2 {
    margin-bottom: 28px;
  }

  .deepdoc-section h3 {
    padding-left: 12px;
  }
}