.deepdoc-hero {
  position: relative;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel);
}

.deepdoc-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-shadow-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-shadow-soft) 1px, transparent 1px);
  background-size: 42px 42px;
  content: "";
  opacity: .18;
  pointer-events: none;
}

.deepdoc-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(340px, .65fr);
  gap: clamp(36px, 7vw, 96px);
  align-items: center;
}

.deepdoc-intro {
  max-width: 790px;
}

.deepdoc-intro h1 {
  max-width: 760px;
  margin-top: 22px;
}

.deepdoc-lead {
  max-width: 720px;
  margin-bottom: 28px;
  font-size: 18px;
  line-height: 1.8;
}

.diagnostic-map {
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel-raised);
  box-shadow: var(--shadow-panel);
}

.diagnostic-steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: diagnostic-step;
}

.diagnostic-steps li {
  position: relative;
  display: grid;
  gap: 4px;
  min-height: 86px;
  padding: 18px 12px 18px 54px;
  border-bottom: 1px solid var(--color-border);
  counter-increment: diagnostic-step;
}

.diagnostic-steps li:last-child {
  border-bottom: 0;
}

.diagnostic-steps li::before {
  position: absolute;
  top: 20px;
  left: 4px;
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--color-accent-strong);
  border-radius: var(--radius-small);
  color: var(--color-accent);
  content: counter(diagnostic-step);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.diagnostic-steps strong {
  font-size: 15px;
}

.diagnostic-steps span {
  color: var(--color-text-muted);
  font-size: 13px;
}

.deepdoc-article {
  max-width: calc(var(--reading-width) + 300px);
}

.deepdoc-section {
  max-width: var(--reading-width);
  margin-inline: auto;
  padding-top: clamp(54px, 7vw, 88px);
  padding-bottom: clamp(54px, 7vw, 88px);
  border-bottom: 1px solid var(--color-border);
  font-size: 17px;
  line-height: 1.9;
}

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

.deepdoc-section h2 {
  max-width: 760px;
}

.deepdoc-section h3 {
  margin-top: 42px;
  font-size: clamp(22px, 3vw, 28px);
}

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

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

.deepdoc-section pre {
  margin-top: 28px;
  margin-bottom: 32px;
  font-size: 14px;
  line-height: 1.7;
}

.deepdoc-section .table-scroll {
  margin-top: 34px;
  margin-bottom: 36px;
}

.ticket-checklist {
  margin: 38px 0;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.ticket-checklist h3 {
  margin-top: 0;
}

.ticket-checklist ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ticket-checklist li {
  position: relative;
  margin: 0;
  padding-left: 26px;
  color: var(--color-text-muted);
}

.ticket-checklist li::before {
  position: absolute;
  top: .72em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent-glow-soft);
  content: "";
}

.deepdoc-section .promo-block {
  max-width: 100%;
}

@media (max-width: 980px) {
  .deepdoc-hero-grid {
    grid-template-columns: 1fr;
  }

  .diagnostic-map {
    max-width: 680px;
  }
}

@media (max-width: 700px) {
  .deepdoc-lead {
    font-size: 16px;
  }

  .diagnostic-map {
    padding: 20px;
  }

  .deepdoc-section {
    font-size: 16px;
  }

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

  .deepdoc-section pre {
    padding: 16px;
    font-size: 13px;
  }
}