.doc-hero {
  position: relative;
  max-width: 100%;
  padding-top: clamp(64px, 9vw, 124px);
  padding-bottom: clamp(56px, 8vw, 96px);
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background:
    linear-gradient(to right, rgba(var(--rgb-accent), .06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(var(--rgb-accent), .06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(var(--rgb-accent), .1), transparent);
  background-size: var(--grid-step) var(--grid-step), var(--grid-step) var(--grid-step), auto;
}

.doc-hero::after {
  position: absolute;
  right: max(var(--gutter), calc((100% - var(--reading-width)) / 2));
  bottom: 0;
  width: min(34vw, 360px);
  height: 10px;
  border-radius: var(--radius-small) var(--radius-small) 0 0;
  background: linear-gradient(90deg, var(--color-accent), var(--color-companion));
  content: "";
}

.doc-hero h1 {
  max-width: 840px;
  margin-top: 20px;
  margin-bottom: 20px;
}

.doc-lead {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: clamp(17px, 2vw, 20px);
}

.doc-fact-row {
  display: flex;
  max-width: 100%;
  margin-top: 28px;
  flex-wrap: wrap;
  gap: 8px;
}

.doc-fact-row span {
  display: inline-flex;
  min-height: 34px;
  max-width: 100%;
  padding: 7px 12px;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font: 500 12px/1.35 var(--font-mono);
}

.doc-links {
  display: flex;
  margin-top: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.doc-body {
  padding-top: clamp(48px, 7vw, 84px);
  padding-bottom: var(--section-space);
}

.doc-intro {
  margin-top: 0;
  margin-bottom: 36px;
}

.doc-section {
  min-width: 0;
  padding-top: 34px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--color-border);
}

.doc-section:last-of-type {
  border-bottom: 0;
}

.doc-section h2 {
  margin-top: 12px;
}

.section-index {
  display: inline-flex;
  min-height: 30px;
  padding: 6px 10px;
  align-items: center;
  border-radius: var(--radius-small);
  background: var(--color-accent);
  color: var(--color-white);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: .04em;
}

.diagnostic-grid {
  display: grid;
  margin: 30px 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.diagnostic-card {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.diagnostic-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
}

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

.platform-behavior,
.ticket-checklist {
  margin: 32px 0;
  padding: clamp(20px, 4vw, 30px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

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

.ticket-checklist ul {
  margin-bottom: 0;
  padding-left: 22px;
}

.ticket-checklist li + li {
  margin-top: 10px;
}

.doc-section .table-scroll {
  margin: 30px 0;
}

.doc-section pre {
  margin: 22px 0;
}

.doc-section a:not(.button):not(.btn-primary):not(.btn-secondary) {
  color: var(--color-accent-deep);
  font-weight: 650;
}

.doc-section p + p {
  margin-top: 16px;
}

.doc-section h3 {
  margin-top: 42px;
  font-size: clamp(21px, 3vw, 28px);
}

.doc-section .callout {
  margin-top: 30px;
  margin-bottom: 30px;
}

@media (max-width: 768px) {
  .doc-hero::after {
    width: 42vw;
  }

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

  .doc-section {
    padding-top: 24px;
    padding-bottom: 34px;
  }

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

@media (max-width: 640px) {
  .doc-links > * {
    width: 100%;
  }

  .doc-fact-row {
    align-items: stretch;
    flex-direction: column;
  }

  .doc-fact-row span {
    width: 100%;
  }

  .platform-behavior,
  .ticket-checklist {
    padding: 20px;
  }
}