.doc-hero {
  position: relative;
  padding-top: clamp(64px, 8vw, 112px);
  padding-bottom: clamp(58px, 7vw, 96px);
  overflow-x: clip;
  border-bottom: var(--line);
  background: var(--color-bg);
}

.doc-hero::before {
  position: absolute;
  inset: 12% -12% auto 48%;
  width: 52%;
  aspect-ratio: 1;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle, var(--color-gold-soft), var(--color-bg) 68%);
  content: "";
  pointer-events: none;
}

.doc-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(330px, .8fr);
  gap: clamp(38px, 7vw, 94px);
  align-items: center;
}

.doc-hero-copy {
  position: relative;
  z-index: 1;
}

.doc-hero h1 {
  max-width: 10em;
  margin-top: 22px;
}

.doc-hero .lead {
  margin-top: 26px;
}

.doc-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.doc-route-card {
  position: relative;
  z-index: 1;
  padding: clamp(25px, 4vw, 42px);
  border: var(--line);
  border-radius: var(--radius-large);
  background: var(--color-bg);
  box-shadow: var(--shadow-card);
}

.doc-route-card::before {
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 52px;
  border-left: 1px dashed var(--color-gold);
  content: "";
}

.doc-route-label,
.doc-closing-label {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
}

.doc-route-list {
  display: grid;
  gap: 22px;
  margin-top: 26px;
  list-style: none;
  counter-reset: route-step;
}

.doc-route-list li {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  counter-increment: route-step;
}

.doc-route-list li::before {
  position: relative;
  z-index: 1;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-accent-dark);
  content: counter(route-step);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.doc-route-list span {
  display: block;
  color: var(--color-muted);
  font-size: 12px;
}

.doc-route-list strong {
  display: block;
  margin-top: 2px;
  color: var(--color-text);
  font-size: 16px;
}

.doc-route-note {
  margin-top: 28px;
  padding-top: 20px;
  border-top: var(--line);
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.8;
}

.doc-article {
  padding-top: clamp(54px, 7vw, 92px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.doc-intro {
  max-width: var(--content-max);
  margin-inline: auto;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.95;
}

.doc-intro p + p {
  margin-top: 18px;
}

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

.doc-article > .toc-tabs {
  margin-top: 42px;
}

.doc-section {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-top: clamp(68px, 8vw, 108px);
  padding-bottom: 12px;
}

.doc-section + .doc-section {
  border-top: var(--line);
}

.doc-section h2 {
  margin-bottom: 30px;
}

.doc-section h3 {
  margin-top: 42px;
  margin-bottom: 14px;
  font-size: clamp(21px, 2.3vw, 27px);
}

.doc-section p {
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.95;
}

.doc-section p + p {
  margin-top: 18px;
}

.doc-section .callout,
.doc-section .table-scroll,
.doc-section pre {
  margin-top: 30px;
  margin-bottom: 30px;
}

.doc-section .callout {
  line-height: 1.85;
}

.doc-section pre {
  font-size: 14px;
}

.doc-section .table-scroll + h3,
.doc-section .callout + h3,
.doc-section pre + h3 {
  margin-top: 44px;
}

.doc-closing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 34px;
  align-items: center;
  max-width: var(--content-max);
  margin: clamp(74px, 9vw, 120px) auto 0;
  padding: clamp(28px, 5vw, 48px);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-medium);
  background: linear-gradient(115deg, var(--color-accent-soft), var(--color-bg));
}

.doc-closing h2 {
  margin-top: 9px;
  font-size: clamp(27px, 3.5vw, 40px);
}

.doc-closing p:not(.doc-closing-label) {
  margin-top: 12px;
  color: var(--color-muted);
  line-height: 1.8;
}

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

  .doc-route-card {
    max-width: 620px;
  }
}

@media (max-width: 768px) {
  .doc-hero {
    padding-top: 48px;
  }

  .doc-hero::before {
    inset: 44% -35% auto 24%;
    width: 110%;
  }

  .doc-route-card {
    width: 100%;
  }

  .doc-closing {
    grid-template-columns: 1fr;
  }

  .doc-closing .btn {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .doc-hero h1 .no-break,
  .doc-section h2 .no-break {
    white-space: normal;
  }

  .doc-hero-actions .btn {
    flex: 1 1 140px;
  }

  .doc-route-card {
    padding: 22px;
  }

  .doc-route-card::before {
    left: 38px;
  }

  .doc-route-list {
    gap: 18px;
  }

  .doc-route-list li {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 14px;
  }

  .doc-route-list li::before {
    width: 32px;
    height: 32px;
  }

  .doc-section {
    padding-top: 62px;
  }

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

  .doc-section p {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .doc-hero::before {
    transform: none;
  }
}