.guide-hero {
  position: relative;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(circle at top center, var(--color-accent-glow-soft), transparent 58%),
    radial-gradient(var(--color-line-soft) 1px, transparent 1.1px);
  background-size: auto, 24px 24px;
}

.guide-hero-inner {
  display: flex;
  min-height: 560px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: clamp(72px, 10vw, 124px);
  padding-bottom: clamp(72px, 10vw, 124px);
  text-align: center;
}

.guide-hero h1 {
  max-width: 920px;
  margin-top: 18px;
}

.guide-lead {
  max-width: 780px;
  margin-top: 20px;
  color: var(--color-text-muted);
  font-size: clamp(17px, 2vw, 20px);
}

.guide-actions {
  justify-content: center;
  margin-top: 28px;
}

.guide-facts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}

.guide-facts span {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  padding: 5px 13px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.guide-shell {
  padding-top: 28px;
  padding-bottom: var(--section-space);
}

.guide-shell .toc-tabs {
  margin-bottom: 42px;
}

.guide-intro {
  display: grid;
  gap: 22px;
  max-width: 940px;
  margin-inline: auto;
  padding-bottom: clamp(58px, 8vw, 92px);
}

.guide-intro > p {
  color: var(--color-text-muted);
  font-size: 17px;
}

.guide-intro a,
.guide-step-content p a,
.platform-note a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.guide-section {
  display: grid;
  grid-template-columns: minmax(140px, 190px) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 68px);
  padding-top: clamp(58px, 8vw, 92px);
  padding-bottom: clamp(58px, 8vw, 92px);
  border-top: 1px solid var(--color-border);
}

.guide-step-label {
  position: sticky;
  top: calc(var(--toc-top) + 72px);
  align-self: start;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.guide-step-label::before {
  display: inline-block;
  width: 28px;
  height: 1px;
  margin-right: 10px;
  background: var(--color-accent);
  content: "";
  vertical-align: middle;
}

.guide-step-content {
  min-width: 0;
  max-width: 860px;
}

.guide-step-content > h2 {
  margin-top: 14px;
}

.guide-step-content > p {
  margin-top: 20px;
  color: var(--color-text-muted);
  font-size: 17px;
}

.guide-step-content > pre {
  margin-top: 22px;
}

.guide-inline-action {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.platform-instructions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.platform-instruction {
  min-width: 0;
  padding: clamp(22px, 4vw, 30px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: 0 16px 34px var(--color-shadow);
}

.platform-instruction h3 {
  color: var(--color-accent);
  font-size: 22px;
}

.platform-instruction p {
  margin-top: 14px;
  color: var(--color-text-muted);
}

.platform-note {
  margin-top: 24px;
}

.completion-panel {
  margin-top: 32px;
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid var(--color-accent-deep);
  border-radius: var(--radius-panel);
  background: var(--color-panel-raised);
  box-shadow: 0 20px 46px var(--color-shadow);
}

.completion-panel h3 {
  font-size: 23px;
}

.completion-panel ul {
  display: grid;
  gap: 12px;
  margin-top: 20px;
  padding: 0;
  list-style: none;
}

.completion-panel li {
  display: flex;
  gap: 10px;
  color: var(--color-text-muted);
}

.completion-panel li::before {
  flex: 0 0 auto;
  color: var(--color-success);
  content: "✓";
  font-weight: 800;
}

@media (max-width: 768px) {
  .guide-hero-inner {
    min-height: auto;
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .guide-section {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .guide-step-label {
    position: static;
  }

  .platform-instructions {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .guide-hero-inner {
    align-items: stretch;
    text-align: left;
  }

  .guide-hero .eyebrow {
    align-self: flex-start;
  }

  .guide-actions {
    justify-content: flex-start;
  }

  .guide-facts {
    justify-content: flex-start;
  }

  .guide-facts span {
    max-width: 100%;
  }

  .guide-shell {
    padding-top: 18px;
  }

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

  .guide-step-content > p,
  .guide-intro > p {
    font-size: 16px;
  }

  .guide-inline-action,
  .guide-inline-action .btn {
    width: 100%;
  }

  .platform-instruction {
    padding: 22px;
  }
}