.tutorial-hero {
  padding-top: 76px;
  padding-bottom: 84px;
}

.tutorial-hero .reading-wrap {
  text-align: center;
}

.tutorial-hero .lead {
  margin-right: auto;
  margin-left: auto;
}

.tutorial-hero .chip-list {
  justify-content: center;
  margin-top: 28px;
}

.tutorial-platform-note {
  max-width: var(--reading-width);
  margin-top: 36px;
  margin-right: auto;
  margin-left: auto;
  text-align: left;
}

.tutorial-content-section {
  padding-top: 72px;
}

.tutorial-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, var(--reading-width));
  justify-content: center;
  align-items: start;
  gap: 56px;
}

.tutorial-toc {
  top: 24px;
  flex-direction: column;
  overflow-x: visible;
}

.tutorial-toc a {
  width: 100%;
  flex: none;
  white-space: normal;
}

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

.tutorial-prose > section:first-child h2 {
  margin-top: 0;
}

.tutorial-section-label {
  display: block;
  margin-bottom: 10px;
  color: var(--color-accent-dark);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
}

.tutorial-intro {
  padding: 32px;
  border-radius: var(--radius-xl);
  background: var(--color-bg);
}

.tutorial-intro h2 {
  padding-top: 0;
}

.tutorial-step {
  position: relative;
  margin-top: 72px;
  padding-top: 8px;
}

.tutorial-step + .tutorial-step {
  border-top: 1px solid var(--color-border);
  padding-top: 72px;
}

.tutorial-step-heading {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  margin-bottom: 30px;
}

.tutorial-step-heading h2 {
  margin-top: 0;
  padding-top: 0;
}

.tutorial-step-number {
  display: inline-flex;
  width: 54px;
  height: 54px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
}

.tutorial-fact-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 30px 0;
}

.tutorial-fact {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.tutorial-fact strong,
.tutorial-fact span {
  display: block;
}

.tutorial-fact strong {
  margin-bottom: 6px;
  color: var(--color-text);
  font-size: 14px;
}

.tutorial-fact span {
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.6;
}

.tutorial-maintenance {
  padding: 34px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-bg);
}

.tutorial-maintenance h2 {
  margin-top: 0;
  padding-top: 0;
}

.tutorial-checklist {
  margin: 32px 0;
  padding: 28px;
  border-radius: var(--radius-xl);
  background: var(--color-panel-alt);
  color: var(--color-text);
}

.tutorial-checklist h3 {
  margin-top: 0;
}

.tutorial-checklist ol {
  margin-bottom: 0;
}

.tutorial-checklist li {
  padding-left: 4px;
  color: var(--color-muted);
}

@media (max-width: 980px) {
  .tutorial-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .tutorial-toc {
    top: 12px;
    flex-direction: row;
    overflow-x: auto;
  }

  .tutorial-toc a {
    width: auto;
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .tutorial-prose {
    width: 100%;
    max-width: var(--reading-width);
    margin-right: auto;
    margin-left: auto;
  }
}

@media (max-width: 768px) {
  .tutorial-hero {
    padding-top: 48px;
    padding-bottom: 64px;
  }

  .tutorial-content-section {
    padding-top: 48px;
  }

  .tutorial-step {
    margin-top: 56px;
  }

  .tutorial-step + .tutorial-step {
    padding-top: 56px;
  }

  .tutorial-fact-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .tutorial-hero .chip-list {
    justify-content: flex-start;
  }

  .tutorial-intro,
  .tutorial-maintenance,
  .tutorial-checklist {
    padding: 22px;
  }

  .tutorial-step-heading {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
  }

  .tutorial-step-number {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    font-size: 12px;
  }

  .tutorial-step-heading h2 {
    font-size: 25px;
  }
}