.tutorial-main {
  position: relative;
}

.tutorial-intro {
  padding-bottom: 34px;
  border-bottom: 1px solid var(--color-border);
}

.tutorial-intro .lead {
  max-width: var(--reading-max);
}

.tutorial-intro .button-row {
  margin-top: 26px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 24px;
}

.tutorial-main > .callout {
  margin-top: 32px;
}

.tutorial-main > .toc-tabs {
  margin-top: 34px;
  margin-bottom: 48px;
}

.tutorial-steps {
  counter-reset: tutorial-step;
}

.tutorial-step {
  padding-top: 16px;
  padding-bottom: 66px;
}

.tutorial-step + .tutorial-step {
  padding-top: 58px;
  border-top: 1px solid var(--color-border);
}

.step-heading {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  gap: 17px;
  margin-bottom: 22px;
}

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

.step-index {
  display: inline-flex;
  min-width: 72px;
  min-height: 32px;
  flex: none;
  align-items: center;
  justify-content: center;
  margin-top: 8px;
  padding: 5px 12px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
}

.tutorial-step > p {
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 1.85;
}

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

.platform-instructions {
  display: grid;
  gap: 18px;
  margin-top: 30px;
  margin-bottom: 30px;
}

.platform-instruction {
  min-width: 0;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: var(--shadow-tile);
}

.platform-instruction h3 {
  margin-top: 14px;
  font-family: var(--font-display);
  font-weight: 400;
}

.platform-instruction p {
  margin-bottom: 16px;
  line-height: 1.8;
}

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

.completion-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 26px;
  align-items: center;
  margin-top: 34px;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel-strong);
  box-shadow: var(--shadow-card);
}

.completion-panel h3 {
  margin-top: 14px;
  font-family: var(--font-display);
  font-weight: 400;
}

.completion-panel p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.completion-panel .button-row {
  justify-content: flex-end;
}

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

  .tutorial-step {
    padding-bottom: 52px;
  }

  .tutorial-step + .tutorial-step {
    padding-top: 48px;
  }

  .completion-panel {
    grid-template-columns: 1fr;
  }

  .completion-panel .button-row {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .tutorial-intro {
    padding-bottom: 28px;
  }

  .step-heading {
    display: block;
  }

  .step-index {
    margin-top: 0;
    margin-bottom: 14px;
  }

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

  .platform-instruction {
    padding: 22px;
  }

  .completion-panel {
    padding: 24px 20px;
  }
}