.manual-hero {
  overflow-x: clip;
  background: var(--color-bg);
  color: var(--color-text);
  padding-top: clamp(54px, 8vw, 96px);
}

.manual-hero-copy {
  max-width: var(--reading-width);
  margin-inline: auto;
  text-align: center;
}

.manual-hero h1 {
  max-width: 780px;
  margin-inline: auto;
  font-size: clamp(34px, 3.6vw, 48px);
}

.manual-lead {
  max-width: 720px;
  margin: 0 auto 24px;
  color: var(--color-text-muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.75;
}

.manual-lead strong {
  color: var(--color-text);
}

.manual-tags {
  display: flex;
  max-width: 760px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 9px;
  margin: 0 auto 28px;
}

.manual-purpose {
  max-width: 760px;
  margin: 0 auto;
  color: var(--color-text-muted);
  text-align: left;
}

.manual-band {
  position: relative;
  height: 180px;
  margin-top: clamp(48px, 7vw, 82px);
  overflow: hidden;
  border-radius: var(--radius-large) var(--radius-large) 0 0;
  background: var(--color-illustration-field);
}

.manual-band::before,
.manual-band::after {
  position: absolute;
  right: -8%;
  left: -8%;
  border-radius: 50%;
  content: "";
}

.manual-band::before {
  bottom: 54px;
  height: 105px;
  background: var(--color-illustration-ridge-far);
}

.manual-band::after {
  bottom: 20px;
  height: 104px;
  background: var(--color-illustration-ridge-near);
}

.manual-band-water {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
  height: 78px;
  background: var(--color-illustration-water);
}

.manual-band-tube {
  position: absolute;
  right: 0;
  bottom: 43px;
  left: 0;
  z-index: 3;
  height: 48px;
}

.manual-band-parcel {
  position: absolute;
  top: 10px;
  left: 50%;
  z-index: 1;
  width: 38px;
  height: 29px;
  border-radius: var(--radius-small);
  background: var(--color-accent);
  filter: blur(5px);
  opacity: 0.8;
  transform: translateX(-50%);
}

.manual-band-glass {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: var(--color-glass);
  box-shadow: var(--shadow-small);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}

.manual-band-glass::before {
  position: absolute;
  top: 7px;
  right: 0;
  left: 0;
  height: 8px;
  background: var(--color-glass-highlight);
  content: "";
  opacity: 0.75;
}

.manual-toc {
  position: relative;
  z-index: 4;
  margin-top: calc(var(--section-space) * -0.45);
  margin-bottom: clamp(48px, 7vw, 76px);
  background: var(--color-bg);
  box-shadow: var(--shadow-large);
}

.manual-prose {
  color: var(--color-text);
}

.manual-chapter {
  scroll-margin-top: 88px;
}

.manual-chapter + .manual-chapter {
  margin-top: clamp(84px, 11vw, 132px);
  padding-top: clamp(46px, 7vw, 72px);
  border-top: 1px solid var(--color-border);
}

.manual-chapter > h2 {
  margin-bottom: 1em;
}

.manual-chapter > h3 {
  margin-top: 2em;
}

.manual-chapter > p {
  color: var(--color-text-muted);
}

.manual-chapter > p a {
  font-weight: 600;
}

.manual-chapter pre {
  margin-block: 30px;
  box-shadow: var(--shadow-large);
}

.manual-chapter .data-table-wrap {
  margin-block: 32px;
}

.manual-chapter td:first-child {
  color: var(--color-text);
  font-weight: 600;
}

.manual-fact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-block: 34px;
}

.manual-fact-grid > div {
  min-width: 0;
  border-radius: var(--radius-medium);
  background: var(--color-bg);
  color: var(--color-text);
  padding: 22px;
  box-shadow: var(--shadow-small);
}

.manual-fact-grid strong {
  display: block;
  margin-bottom: 8px;
}

.manual-fact-grid p {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 14px;
}

@media (max-width: 768px) {
  .manual-hero {
    padding-top: 42px;
  }

  .manual-hero h1 {
    font-size: clamp(24px, 7vw, 30px);
  }

  .manual-lead {
    font-size: 16px;
  }

  .manual-band {
    height: 140px;
  }

  .manual-fact-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .manual-chapter + .manual-chapter {
    margin-top: 76px;
    padding-top: 44px;
  }
}

@media (max-width: 640px) {
  .manual-purpose {
    font-size: 15px;
  }

  .manual-band {
    margin-top: 42px;
  }

  .manual-toc {
    margin-top: -36px;
  }

  .manual-chapter pre {
    padding: 16px;
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .manual-band-parcel {
    transform: translateX(-50%);
  }
}