.guide-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
  background-image:
    repeating-linear-gradient(to right, var(--color-cream-grid) 0 1px, transparent 1px 104px),
    repeating-linear-gradient(to bottom, var(--color-cream-grid-soft) 0 1px, transparent 1px 88px),
    radial-gradient(circle, var(--color-cream-dot) 1px, transparent 1.6px);
  background-size: auto, auto, 52px 88px;
}

.guide-hero-inner {
  display: grid;
  min-height: 610px;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: 72px;
  align-items: center;
  padding-top: 76px;
  padding-bottom: 76px;
}

.guide-hero-copy {
  position: relative;
  z-index: 2;
}

.guide-hero-copy .badge {
  margin-bottom: 18px;
}

.guide-hero-copy h1 {
  max-width: 9em;
}

.guide-hero-copy .lead {
  margin-bottom: 28px;
}

.guide-route {
  position: relative;
  padding: 26px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.guide-route::before {
  position: absolute;
  top: 91px;
  bottom: 74px;
  left: 49px;
  width: 1px;
  background: var(--color-cream);
  content: "";
  opacity: 0.42;
}

.guide-route-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 12px;
}

.guide-route-head .mono {
  color: var(--color-accent);
  letter-spacing: 0.12em;
}

.guide-route-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.guide-route-list li {
  position: relative;
  display: grid;
  min-height: 68px;
  grid-template-columns: 34px 1fr auto;
  gap: 14px;
  align-items: center;
  margin: 0;
  color: var(--color-text);
  font-weight: 700;
}

.guide-route-list li::before {
  position: relative;
  z-index: 1;
  width: 11px;
  height: 11px;
  margin-left: 18px;
  border: 3px solid var(--color-panel);
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-cream);
  content: "";
  transform: translateX(-50%);
}

.guide-route-list li::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 49px;
  height: 1px;
  background: var(--color-border);
  content: "";
}

.guide-route-list li:last-child::after {
  display: none;
}

.guide-route-list small {
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: nowrap;
}

.guide-intro {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel);
}

.guide-intro .callout {
  margin-top: 0;
}

.guide-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.guide-summary > div {
  min-width: 0;
  padding: 22px;
  border-right: 1px solid var(--color-border);
}

.guide-summary > div:last-child {
  border-right: 0;
}

.guide-summary-label {
  display: block;
  margin-bottom: 7px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.guide-summary strong {
  display: block;
  margin-bottom: 5px;
}

.guide-summary p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 13px;
}

.guide-shell {
  padding-top: 34px;
  padding-bottom: 104px;
}

.guide-shell .toc-tabs {
  margin-bottom: 34px;
}

.guide-content {
  width: 100%;
  max-width: var(--reading-width);
  margin-inline: auto;
}

.guide-step {
  padding-top: 74px;
  padding-bottom: 74px;
  border-bottom: 1px solid var(--color-border);
}

.guide-step:first-child {
  padding-top: 34px;
}

.guide-step:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.guide-step-heading {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  margin-bottom: 26px;
}

.guide-step-mark {
  display: inline-flex;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-wine);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 700;
}

.guide-step-heading .eyebrow {
  margin-bottom: 8px;
}

.guide-step-heading h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 46px);
}

.guide-step > p,
.platform-unit p,
.next-links p,
.verification-grid p {
  color: var(--color-muted);
}

.guide-step > p {
  font-size: 16px;
  line-height: 1.82;
}

.inline-link {
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--color-accent-deep);
  text-underline-offset: 3px;
}

.guide-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 30px;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}

.guide-actions span {
  color: var(--color-muted);
  font-size: 13px;
}

.platform-manual {
  display: grid;
  gap: 16px;
  margin-top: 34px;
}

.platform-unit {
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  box-shadow: var(--shadow-lift);
}

.platform-unit-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.platform-unit-head h3 {
  margin-bottom: 0;
  font-size: 22px;
}

.platform-letter {
  display: inline-flex;
  min-width: 48px;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  padding: 5px 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-highlight);
  color: var(--color-accent);
  font-size: 10px;
  font-weight: 700;
}

.platform-unit p:last-child {
  margin-bottom: 0;
}

.verification-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.verification-grid > div {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}

.verification-state {
  display: inline-flex;
  width: 30px;
  height: 30px;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border-radius: 50%;
  background: var(--color-success-soft);
  color: var(--color-success);
  font-weight: 800;
}

.verification-grid strong {
  display: block;
  margin-bottom: 7px;
}

.verification-grid p {
  margin-bottom: 0;
  font-size: 13px;
}

.next-links {
  display: grid;
  gap: 12px;
  margin-top: 32px;
}

.next-links a {
  display: grid;
  grid-template-columns: 100px minmax(0, 160px) minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  min-height: 84px;
  padding: 18px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.next-links a:hover {
  transform: translateY(-1px);
  border-color: var(--color-accent);
  background: var(--color-panel-raised);
}

.next-links .mono {
  color: var(--color-accent);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.next-links p {
  margin-bottom: 0;
  font-size: 13px;
}

@media (max-width: 900px) {
  .guide-hero-inner {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .guide-hero-copy h1 {
    max-width: 100%;
  }

  .guide-route {
    max-width: 680px;
  }

  .guide-summary {
    grid-template-columns: 1fr;
  }

  .guide-summary > div {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .guide-summary > div:last-child {
    border-bottom: 0;
  }

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

@media (max-width: 768px) {
  .guide-hero-inner {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .guide-route-head {
    display: none;
  }

  .guide-route::before {
    top: 46px;
    bottom: 46px;
  }

  .guide-shell {
    padding-top: 24px;
    padding-bottom: 76px;
  }

  .guide-step {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .next-links a {
    grid-template-columns: 82px minmax(0, 1fr);
  }

  .next-links p {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .guide-route {
    padding: 18px;
  }

  .guide-route::before {
    left: 41px;
  }

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

  .guide-route-list li::before {
    margin-left: 14px;
  }

  .guide-route-list li::after {
    left: 41px;
  }

  .guide-route-list small {
    display: none;
  }

  .guide-step-heading {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 13px;
  }

  .guide-step-mark {
    width: 40px;
    height: 40px;
  }

  .guide-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .guide-actions .btn {
    width: 100%;
  }

  .platform-unit {
    padding: 20px;
  }

  .next-links a {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .next-links p {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .next-links a {
    transition: none;
  }
}