:root {
  --tutorial-flow-max: 920px;
  --tutorial-step-mark: 52px;
  --tutorial-platform-gap: 18px;
}

.tutorial-hero {
  padding-bottom: clamp(46px, 7vw, 82px);
  border-bottom: 1px solid var(--color-border);
}

.tutorial-hero .hero-title {
  max-width: 820px;
}

.tutorial-layout {
  padding-top: clamp(28px, 5vw, 54px);
  padding-bottom: var(--section-space);
}

.tutorial-layout > .toc-tabs {
  margin-bottom: clamp(42px, 7vw, 76px);
}

.tutorial-flow {
  width: 100%;
  max-width: var(--tutorial-flow-max);
  margin-inline: auto;
}

.tutorial-flow section[id] {
  scroll-margin-top: var(--toc-offset);
}

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

.tutorial-intro {
  padding-bottom: clamp(48px, 7vw, 78px);
}

.tutorial-step {
  padding-top: clamp(54px, 8vw, 88px);
  padding-bottom: clamp(54px, 8vw, 88px);
  border-top: 1px solid var(--color-border);
}

.tutorial-flow h2 {
  margin-bottom: 24px;
}

.tutorial-flow p {
  text-wrap: pretty;
}

.step-heading {
  display: grid;
  grid-template-columns: var(--tutorial-step-mark) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  margin-bottom: 22px;
}

.step-heading .kicker {
  margin-bottom: 7px;
}

.step-heading h2 {
  margin-bottom: 0;
}

.step-index {
  display: grid;
  width: var(--tutorial-step-mark);
  height: var(--tutorial-step-mark);
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-s);
  background: var(--color-panel-soft);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 800;
  box-shadow: var(--shadow-button);
}

.step-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 22px;
  margin-top: 28px;
}

.step-actions .btn-primary {
  color: var(--color-panel);
}

.text-link {
  color: var(--color-accent-dark);
  font-size: 14px;
  font-weight: 650;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.platform-instructions {
  display: grid;
  gap: var(--tutorial-platform-gap);
  margin-top: 34px;
  margin-bottom: 30px;
}

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

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

.platform-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.platform-label h3 {
  margin: 0;
  font-size: 22px;
}

.platform-code {
  display: inline-flex;
  min-width: 48px;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-panel-soft);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .08em;
}

.tutorial-flow pre {
  margin-top: 22px;
  margin-bottom: 24px;
}

.next-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.resource-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-s);
  background: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
  transition: border-color var(--motion-fast), transform var(--motion-fast);
}

.resource-link:hover {
  border-color: var(--color-muted);
  transform: translateY(-2px);
}

.resource-link strong,
.resource-link small {
  display: block;
}

.resource-link small {
  margin-top: 5px;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.6;
}

.resource-code {
  display: inline-flex;
  min-width: 42px;
  min-height: 28px;
  align-items: center;
  justify-content: center;
  padding: 3px 7px;
  border-radius: var(--radius-xs);
  background: var(--color-panel-soft);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
}

@media (max-width: 768px) {
  .tutorial-layout > .toc-tabs {
    margin-bottom: 38px;
  }

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

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

@media (max-width: 520px) {
  :root {
    --tutorial-step-mark: 42px;
  }

  .step-heading {
    gap: 13px;
  }

  .step-index {
    font-size: 11px;
  }

  .step-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

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

  .platform-instruction {
    padding: 20px;
  }

  .platform-label {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
  }

  .resource-link {
    padding: 17px;
  }
}