.tutorial-intro {
  padding-top: clamp(64px, 9vw, 104px);
  padding-bottom: clamp(48px, 7vw, 80px);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-page);
}

.tutorial-intro h1 {
  max-width: 760px;
}

.tutorial-summary {
  max-width: 760px;
  color: var(--color-ink-muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.8;
}

.tutorial-actions,
.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tutorial-actions {
  margin-top: 28px;
}

.tutorial-facts {
  margin-top: 28px;
}

.tutorial-nav-wrap {
  position: relative;
  z-index: 8;
  padding-top: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.tutorial-nav-wrap .toc {
  top: 12px;
}

.step-heading {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  margin-bottom: 26px;
}

.step-heading .kicker {
  margin-bottom: 6px;
}

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

.step-index {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid var(--color-device-line);
  border-radius: var(--radius-small);
  color: var(--color-device-ink);
  background: var(--color-device);
  box-shadow: var(--shadow-card);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 800;
}

.prep-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 30px;
}

.prep-card {
  padding: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  color: var(--color-ink);
  background: var(--color-page);
  box-shadow: var(--shadow-card);
}

.prep-card h3 {
  margin-top: 0;
  font-size: 1.08rem;
}

.prep-card p {
  color: var(--color-ink-muted);
}

.prep-card a {
  font-weight: 750;
  text-decoration: none;
}

.check-sequence {
  display: grid;
  gap: 14px;
}

.check-card {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  color: var(--color-ink);
  background: var(--color-page);
  box-shadow: var(--shadow-card);
}

.check-card h3 {
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.check-card p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.check-number {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: var(--radius-small);
  color: var(--color-white);
  background: var(--color-brand);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 800;
}

.tutorial-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  margin-top: 34px;
  padding: 24px;
  border: 1px solid var(--color-device-line);
  border-radius: var(--radius-medium);
  color: var(--color-device-ink);
  background: var(--color-device);
  box-shadow: var(--shadow-card);
}

.tutorial-next h3 {
  margin-bottom: 6px;
  color: var(--color-device-ink);
}

.tutorial-next p {
  margin-bottom: 0;
  color: var(--color-device-muted);
}

.tutorial-next .button-secondary {
  border-color: var(--color-device-line);
  color: var(--color-device-ink);
  background: var(--color-device-panel);
}

.tutorial-next .button-secondary:hover {
  border-color: var(--color-device-muted);
  color: var(--color-white);
  background: var(--color-device-raised);
}

@media (max-width: 768px) {
  .tutorial-intro {
    padding-top: 56px;
    padding-bottom: 52px;
  }

  .prep-grid,
  .tutorial-next {
    grid-template-columns: 1fr;
  }

  .tutorial-next .button {
    justify-self: start;
  }
}

@media (max-width: 520px) {
  .step-heading {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 13px;
  }

  .step-index {
    width: 46px;
    height: 46px;
  }

  .check-card {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
    padding: 17px;
  }

  .check-number {
    width: 36px;
    height: 36px;
  }

  .tutorial-actions .button {
    width: 100%;
  }
}