:root {
  --tutorial-step-size: 52px;
  --tutorial-shot-width: 280px;
  --tutorial-reading-gap: clamp(30px, 5vw, 58px);
  --tutorial-chapter-space: clamp(72px, 9vw, 112px);
}

.tutorial-hero {
  padding-top: clamp(64px, 8vw, 104px);
  padding-bottom: clamp(52px, 7vw, 88px);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-page);
}

.tutorial-hero .lead {
  max-width: 760px;
}

.tutorial-actions,
.tutorial-facts {
  margin-top: 26px;
}

.tutorial-prerequisite {
  background: var(--color-page);
  box-shadow: var(--shadow-soft);
}

.tutorial-prerequisite h2 {
  margin-top: 18px;
}

.text-link {
  color: var(--color-accent-deep);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--color-accent-line);
  text-underline-offset: 4px;
}

.tutorial-content {
  position: relative;
}

.tutorial-content .toc {
  margin-bottom: clamp(54px, 7vw, 84px);
}

.tutorial-chapter {
  padding-bottom: var(--tutorial-chapter-space);
  scroll-margin-top: calc(var(--header-height) + 24px);
}

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

.step-heading {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 32px;
}

.step-heading h2 {
  margin-top: 12px;
  margin-bottom: 0;
}

.step-index {
  display: grid;
  width: var(--tutorial-step-size);
  height: var(--tutorial-step-size);
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 750;
}

.tutorial-step-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, var(--tutorial-shot-width));
  gap: var(--tutorial-reading-gap);
  align-items: start;
  margin-bottom: 34px;
}

.tutorial-shot {
  width: min(100%, var(--tutorial-shot-width));
  justify-self: end;
}

.tutorial-shot img {
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
}

.tutorial-chapter h3 {
  margin-top: 34px;
}

.tutorial-step-grid h3 {
  margin-top: 0;
}

.tutorial-chapter pre {
  margin-bottom: 24px;
}

.check-sequence {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
  padding-left: 0;
  list-style: none;
  counter-reset: tutorial-check;
}

.check-sequence li {
  position: relative;
  min-width: 0;
  padding: 18px 20px 18px 54px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-muted);
  counter-increment: tutorial-check;
}

.check-sequence li::before {
  position: absolute;
  top: 18px;
  left: 18px;
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-deep);
  content: counter(tutorial-check);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 750;
}

.tutorial-finish {
  padding-bottom: 0;
}

@media (max-width: 720px) {
  .tutorial-step-grid {
    grid-template-columns: 1fr;
  }

  .tutorial-shot {
    justify-self: center;
  }

  .step-heading {
    gap: 13px;
  }

  .step-index {
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 480px) {
  .tutorial-hero {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .tutorial-content .toc {
    margin-bottom: 48px;
  }

  .tutorial-chapter {
    padding-bottom: 64px;
  }

  .tutorial-chapter + .tutorial-chapter {
    padding-top: 64px;
  }

  .step-heading {
    align-items: center;
  }

  .check-sequence li {
    padding: 16px 16px 16px 50px;
  }

  .check-sequence li::before {
    top: 16px;
    left: 15px;
  }
}