.tutorial-hero {
  min-height: auto;
  border-bottom: 1px solid var(--color-border);
}

.tutorial-hero-inner {
  padding-top: 92px;
  padding-bottom: 88px;
}

.tutorial-hero-copy {
  position: relative;
  z-index: 2;
  max-width: var(--reading-width);
}

.tutorial-hero-copy h1 {
  margin-top: 22px;
  margin-bottom: 20px;
  font-size: clamp(48px, 5.2vw, 68px);
}

.tutorial-hero-lead {
  max-width: 42em;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 18px;
  line-height: 1.8;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.tutorial-flow {
  position: relative;
  padding-top: 72px;
  padding-bottom: var(--section-space);
}

.tutorial-flow > .callout {
  max-width: var(--reading-width);
  margin-top: 0;
  margin-bottom: 34px;
}

.tutorial-step {
  display: grid;
  grid-template-columns: minmax(96px, 150px) minmax(0, var(--reading-width));
  gap: 34px;
  padding-top: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--color-border);
}

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

.step-marker {
  position: sticky;
  top: var(--toc-offset);
  align-self: start;
  padding-top: 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.step-marker::before {
  display: inline-block;
  width: 22px;
  height: 25px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--color-accent);
  content: "";
  clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
  box-shadow: 0 0 16px var(--color-accent-a28);
}

.step-content {
  min-width: 0;
  color: var(--color-text-muted);
}

.step-content h2 {
  margin-bottom: 24px;
}

.step-content h3 {
  margin-top: 0;
  font-size: 22px;
}

.step-content a:not(.btn-primary):not(.btn-secondary):not(.btn-subtle) {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: var(--color-accent-a45);
  text-underline-offset: 0.2em;
}

.step-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.platform-runbook {
  display: grid;
  gap: 16px;
  margin-top: 32px;
  margin-bottom: 32px;
}

.platform-instruction {
  position: relative;
  padding: 28px 30px 24px 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
}

.platform-instruction::before {
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 0;
  width: 3px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent-a35);
  content: "";
}

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

.completion-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 38px;
  padding: 30px;
  border: 1px solid var(--color-accent-dark);
  border-radius: var(--radius-panel);
  background: var(--color-panel-raised);
  box-shadow: 0 0 38px var(--color-accent-a12);
}

.completion-panel h3 {
  margin-bottom: 10px;
}

.completion-panel p:last-child {
  margin-bottom: 0;
}

.completion-label {
  margin-bottom: 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

@media (max-width: 768px) {
  .tutorial-hero-inner {
    padding-top: 64px;
    padding-bottom: 66px;
  }

  .tutorial-hero-copy h1 {
    font-size: clamp(32px, 9.4vw, 40px);
  }

  .tutorial-hero-lead {
    font-size: 16px;
  }

  .tutorial-flow {
    padding-top: 54px;
  }

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

  .step-marker {
    position: static;
    margin-bottom: 20px;
    padding-top: 0;
  }

  .platform-instruction {
    padding: 24px 24px 22px 28px;
  }

  .completion-panel {
    grid-template-columns: minmax(0, 1fr);
    padding: 24px;
  }

  .completion-panel .btn-secondary {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .tutorial-facts {
    align-items: flex-start;
    flex-direction: column;
  }

  .tutorial-facts .fact-capsule {
    width: 100%;
  }

  .step-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .step-actions .btn-primary,
  .step-actions .btn-secondary,
  .step-actions .btn-subtle {
    width: 100%;
  }

  .platform-instruction {
    padding: 22px 20px 20px 24px;
  }
}