.tutorial-hero {
  padding-top: 76px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-page);
  color: var(--color-ink);
}

.tutorial-lead {
  max-width: 760px;
  margin-bottom: 28px;
  color: var(--color-ink-muted);
  font-size: 18px;
  line-height: 1.8;
}

.tutorial-facts {
  margin-top: 34px;
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid var(--color-line);
}

.tutorial-fact {
  max-width: 100%;
  padding: 7px 12px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
}

.tutorial-article > section {
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.tutorial-intro {
  padding-bottom: 72px;
}

.preflight-grid,
.verification-grid,
.next-grid {
  display: grid;
  gap: 16px;
}

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

.preflight-grid {
  margin-top: 30px;
}

.tutorial-step {
  padding-top: 76px;
  padding-bottom: 76px;
  border-top: 1px solid var(--color-line);
}

.step-heading {
  margin-bottom: 28px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

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

.step-number {
  width: 48px;
  height: 48px;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
}

.step-label {
  margin-bottom: 7px;
  color: var(--color-ink-muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.result-panel {
  margin-top: 30px;
  margin-bottom: 30px;
  padding: 20px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-ink);
}

.result-panel p {
  margin-bottom: 0;
}

.result-title {
  margin-bottom: 4px;
  font-weight: 600;
}

.result-title + p {
  color: var(--color-ink-muted);
  font-size: 14px;
}

.mode-table-wrap {
  max-width: 100%;
  margin-top: 30px;
  margin-bottom: 30px;
  overflow-x: auto;
  border-radius: var(--radius-md);
  -webkit-overflow-scrolling: touch;
}

.mode-table {
  min-width: 620px;
  margin-bottom: 0;
}

.mode-table-wrap:focus-visible {
  outline: 3px solid var(--color-accent-soft);
  outline-offset: 3px;
}

.verification-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 30px;
  margin-bottom: 30px;
}

.tutorial-review {
  padding-bottom: 60px;
}

.review-list {
  margin-top: 28px;
  padding: 0;
  list-style: none;
  counter-reset: review-item;
}

.review-list li {
  padding: 22px 0;
  display: grid;
  grid-template-columns: minmax(150px, 0.36fr) minmax(0, 1fr);
  gap: 24px;
  border-top: 1px solid var(--color-line);
  counter-increment: review-item;
}

.review-list li:last-child {
  border-bottom: 1px solid var(--color-line);
}

.review-list strong {
  position: relative;
  padding-left: 38px;
}

.review-list strong::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-accent-deep);
  content: counter(review-item);
  font-family: var(--font-mono);
  font-size: 11px;
}

.review-list span {
  color: var(--color-ink-muted);
}

.tutorial-next {
  padding-top: 72px;
  border-top: 1px solid var(--color-line);
}

.next-grid {
  margin-top: 32px;
}

.next-grid .panel {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}

.next-grid .text-link {
  margin-top: auto;
  font-weight: 600;
  text-decoration: none;
}

@media (max-width: 768px) {
  .tutorial-hero {
    padding-top: 52px;
    padding-bottom: 54px;
  }

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

  .preflight-grid,
  .verification-grid,
  .next-grid {
    grid-template-columns: 1fr;
  }

  .tutorial-intro {
    padding-bottom: 56px;
  }

  .tutorial-step {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .review-list li {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

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

  .tutorial-fact {
    width: 100%;
    white-space: normal;
  }

  .step-heading {
    gap: 14px;
  }

  .step-number {
    width: 40px;
    height: 40px;
  }

  .result-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .result-panel .badge {
    white-space: normal;
  }

  .tutorial-next {
    padding-top: 56px;
  }
}