.manual-hero {
  position: relative;
  padding-top: clamp(72px, 8vw, 116px);
  padding-bottom: clamp(72px, 8vw, 112px);
  overflow: hidden;
  background: var(--color-panel);
  border-bottom: 1px solid var(--color-border);
}

.manual-hero::before {
  position: absolute;
  inset: auto auto -46% -14%;
  width: min(66vw, 820px);
  aspect-ratio: 1;
  background: radial-gradient(circle, var(--color-accent-glow-soft), transparent 68%);
  border-radius: var(--radius-pill);
  content: "";
  pointer-events: none;
}

.manual-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  gap: clamp(40px, 7vw, 108px);
  align-items: center;
}

.manual-hero-copy {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.manual-hero-copy h1 {
  margin-top: 24px;
}

.manual-hero-copy .lead {
  margin-bottom: 0;
}

.manual-facts {
  display: flex;
  margin-top: 28px;
  flex-wrap: wrap;
  gap: 10px;
}

.manual-hero-copy .button-row {
  margin-top: 30px;
}

.manual-route {
  position: relative;
  color: var(--color-accent);
}

.manual-route svg {
  width: 100%;
  height: auto;
  overflow: visible;
}

.manual-route-halo {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 7;
  opacity: .08;
}

.manual-route-ring,
.manual-route-exit {
  fill: none;
  stroke: var(--color-line);
  stroke-width: 1.5;
}

.manual-route-node {
  fill: var(--color-panel-raised);
  stroke: var(--color-accent);
  stroke-width: 2;
  filter: drop-shadow(0 0 8px var(--color-accent-glow-strong));
}

.manual-route-shield {
  fill: var(--color-panel-raised);
  stroke: var(--color-accent);
  stroke-width: 1.7;
  filter: drop-shadow(0 0 12px var(--color-accent-glow));
}

.manual-route-check {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.manual-route-label {
  fill: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
}

.manual-article {
  position: relative;
  padding-top: clamp(54px, 7vw, 96px);
  padding-bottom: var(--section-space);
}

.manual-article .toc-tabs {
  top: 10px;
}

.manual-intro {
  max-width: var(--reading-max);
  margin: 0 auto clamp(74px, 9vw, 124px);
  padding: clamp(24px, 4vw, 38px);
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.manual-intro p:last-child {
  margin-bottom: 0;
}

.manual-chapter {
  width: 100%;
  max-width: var(--reading-max);
  margin-inline: auto;
  padding-top: clamp(68px, 8vw, 112px);
  padding-bottom: clamp(68px, 8vw, 112px);
  border-top: 1px solid var(--color-border);
}

.manual-chapter:first-of-type {
  border-top: 0;
}

.manual-chapter > .eyebrow {
  margin-bottom: 16px;
}

.manual-chapter h2 {
  margin-bottom: 38px;
}

.manual-chapter h3 {
  margin-top: 44px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}

.manual-chapter h2 + h3 {
  margin-top: 0;
}

.manual-chapter p {
  overflow-wrap: break-word;
}

.manual-chapter .table-scroll {
  margin-top: 34px;
  margin-bottom: 34px;
}

.manual-chapter pre {
  margin-top: 26px;
  margin-bottom: 26px;
}

.manual-chapter .callout {
  margin-top: 36px;
  margin-bottom: 36px;
}

.manual-article > .promo-block {
  max-width: 980px;
  margin-right: auto;
  margin-left: auto;
}

@media (max-width: 960px) {
  .manual-hero-grid {
    grid-template-columns: 1fr;
  }

  .manual-route {
    width: min(100%, 540px);
    margin-inline: auto;
  }
}

@media (max-width: 768px) {
  .manual-hero {
    padding-top: 62px;
    padding-bottom: 64px;
  }

  .manual-route {
    display: none;
  }

  .manual-article {
    padding-top: 38px;
  }

  .manual-intro {
    margin-bottom: 58px;
  }

  .manual-chapter {
    padding-top: 66px;
    padding-bottom: 66px;
  }

  .manual-chapter h2 {
    margin-bottom: 30px;
  }

  .manual-chapter h3 {
    margin-top: 36px;
  }
}

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

  .manual-facts .capsule {
    max-width: 100%;
  }

  .manual-intro {
    padding: 20px;
  }

  .manual-chapter pre {
    padding: 16px;
  }
}