.tutorial-hero {
  padding-top: clamp(18px, 4vw, 42px);
  padding-bottom: clamp(26px, 5vw, 56px);
}

.tutorial-hero-panel {
  display: grid;
  min-height: 430px;
  overflow: hidden;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .75fr);
  align-items: center;
  gap: clamp(32px, 6vw, 78px);
  border-radius: var(--radius-banner);
  background: var(--color-ink-panel);
  color: var(--color-on-dark);
  padding: clamp(32px, 6vw, 68px);
  box-shadow: var(--shadow-banner);
}

.tutorial-hero-copy {
  max-width: 720px;
}

.tutorial-hero-panel h1 {
  color: var(--color-on-dark);
}

.tutorial-hero-panel .eyebrow {
  color: var(--color-accent);
}

.tutorial-hero-panel .lede {
  color: var(--color-on-dark-soft);
}

.tutorial-route {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tutorial-route li {
  position: relative;
  display: grid;
  min-height: 70px;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--color-chip-border);
  color: var(--color-on-dark-soft);
  font-weight: 750;
}

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

.tutorial-route li::before {
  position: absolute;
  top: 50%;
  left: 18px;
  width: 12px;
  height: 12px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
  transform: translateY(-50%);
}

.route-number {
  color: var(--color-on-dark-faint);
  font-family: var(--font-mono);
  font-size: .73rem;
  text-align: right;
}

.tutorial-toc-wrap {
  padding-top: 8px;
  padding-bottom: 8px;
}

.tutorial-toc-wrap .toc-tabs {
  top: calc(var(--header-height) + 10px);
}

.tutorial-step {
  padding-top: clamp(54px, 8vw, 88px);
  scroll-margin-top: calc(var(--header-height) + 90px);
}

.step-heading {
  display: grid;
  margin-bottom: 30px;
  grid-template-columns: 68px minmax(0, 1fr);
  align-items: start;
  gap: 18px;
}

.step-heading h2 {
  margin-bottom: 0;
  scroll-margin-top: calc(var(--header-height) + 88px);
}

.step-index {
  display: inline-flex;
  width: 62px;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent-strong);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-ink-panel);
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 800;
}

.tutorial-step > p,
.tutorial-step > .callout,
.tutorial-step > pre,
.tutorial-step > h3 {
  margin-bottom: 24px;
}

.tutorial-step h3 {
  margin-top: 38px;
}

.tutorial-step .callout {
  margin-top: 30px;
}

.diagnosis-list {
  display: grid;
  gap: 14px;
  margin: 28px 0;
}

.diagnosis-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  padding: clamp(20px, 3vw, 28px);
}

.diagnosis-item h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1.08rem;
}

.diagnosis-item p {
  color: var(--color-text-muted);
}

.completion-card {
  margin-top: clamp(64px, 9vw, 100px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  padding: clamp(26px, 5vw, 44px);
  box-shadow: var(--shadow-card);
}

.completion-card .button-row {
  margin-top: 26px;
}

@media (max-width: 820px) {
  .tutorial-hero-panel {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .tutorial-route {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
  }

  .tutorial-route li {
    min-height: 76px;
    grid-template-columns: 1fr;
    align-content: center;
    gap: 2px;
    border: 1px solid var(--color-chip-border);
    border-radius: var(--radius-sm);
    padding: 10px;
    text-align: center;
  }

  .tutorial-route li:last-child {
    border-bottom: 1px solid var(--color-chip-border);
  }

  .tutorial-route li::before {
    position: static;
    width: 7px;
    height: 7px;
    margin-inline: auto;
    transform: none;
  }

  .route-number {
    text-align: center;
  }
}

@media (max-width: 560px) {
  .tutorial-hero-panel {
    border-radius: var(--radius-card);
    padding: 28px 20px;
  }

  .tutorial-route {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .step-heading {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .step-index {
    width: auto;
    min-width: 58px;
    justify-self: start;
    padding-inline: 14px;
  }

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