.tutorial-hero {
  position: relative;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-line);
}

.tutorial-hero-inner {
  display: grid;
  min-height: calc(100svh - var(--header-height));
  padding-top: clamp(56px, 8vw, 104px);
  padding-bottom: clamp(64px, 9vw, 116px);
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.72fr);
  align-items: center;
  gap: clamp(42px, 8vw, 110px);
}

.tutorial-intro {
  min-width: 0;
}

.tutorial-intro h1 {
  max-width: 10em;
  margin-top: 22px;
}

.tutorial-intro .lead {
  max-width: 39em;
  margin-bottom: 28px;
}

.tutorial-actions {
  display: flex;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.tutorial-facts {
  display: flex;
  margin: 0;
  padding: 18px 0 0;
  flex-wrap: wrap;
  gap: 10px 24px;
  border-top: 1px solid var(--color-line);
  color: var(--color-ink-soft);
  font-size: 13px;
  list-style: none;
}

.tutorial-facts li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tutorial-facts li::before {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.guide-sheet {
  min-width: 0;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-large);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
  transform: rotate(1deg);
}

.guide-sheet-head {
  display: flex;
  padding-bottom: 20px;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.guide-sheet-mark {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.guide-sheet-flow {
  display: grid;
}

.guide-sheet-row {
  display: grid;
  padding: 21px 0;
  grid-template-columns: minmax(58px, auto) minmax(0, 1fr);
  gap: 4px 16px;
  border-bottom: 1px solid var(--color-line);
}

.guide-sheet-row strong {
  min-width: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 400;
}

.guide-sheet-row > span:last-child {
  grid-column: 2;
  color: var(--color-ink-soft);
  font-size: 12px;
}

.guide-sheet-label {
  grid-row: 1 / 3;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.guide-sheet-note {
  margin: 20px 0 0;
  color: var(--color-ink-soft);
  font-size: 12px;
}

.tutorial-body {
  padding-top: clamp(64px, 8vw, 104px);
}

.tutorial-layout {
  min-width: 0;
}

.tutorial-document {
  width: 100%;
  max-width: 960px;
  margin-inline: auto;
}

.tutorial-step {
  display: grid;
  padding-top: clamp(64px, 9vw, 112px);
  padding-bottom: clamp(64px, 9vw, 112px);
  grid-template-columns: minmax(190px, 0.55fr) minmax(0, 1.45fr);
  gap: clamp(34px, 7vw, 96px);
  border-bottom: 1px solid var(--color-line);
}

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

.step-heading {
  min-width: 0;
}

.step-heading h2 {
  margin: 10px 0 0;
  font-size: clamp(31px, 4vw, 45px);
}

.step-kicker {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.step-content {
  min-width: 0;
}

.step-content p {
  margin-bottom: 1.35em;
  color: var(--color-ink-soft);
  font-size: 16px;
  line-height: 1.95;
}

.step-content p:last-child {
  margin-bottom: 0;
}

.step-content a:not(.btn-primary, .btn-secondary, .btn-quiet) {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.platform-instructions {
  display: grid;
  margin: 38px 0;
  gap: 0;
  border-top: 1px solid var(--color-line);
}

.platform-instruction {
  min-width: 0;
  padding: 34px 0;
  border-bottom: 1px solid var(--color-line);
}

.platform-instruction h3 {
  position: relative;
  padding-left: 20px;
  font-family: var(--font-body);
  font-size: 22px;
  font-weight: 600;
}

.platform-instruction h3::before {
  position: absolute;
  top: 0.55em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

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

@media (max-width: 960px) {
  .tutorial-hero-inner {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .guide-sheet {
    width: min(100%, 680px);
    transform: none;
  }

  .tutorial-step {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .step-heading h2 {
    max-width: 14em;
  }
}

@media (max-width: 640px) {
  .tutorial-hero-inner {
    padding-top: 38px;
    padding-bottom: 64px;
    gap: 38px;
  }

  .tutorial-actions .btn-primary,
  .tutorial-actions .btn-secondary {
    flex: 1 1 130px;
  }

  .guide-sheet {
    padding: 22px;
  }

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

  .guide-sheet-label {
    grid-row: auto;
  }

  .guide-sheet-row > span:last-child {
    grid-column: auto;
  }

  .tutorial-step {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .step-content p {
    font-size: 15px;
  }

  .platform-instruction {
    padding: 28px 0;
  }
}