.tutorial-hero {
  padding-top: clamp(52px, 7vw, 88px);
  padding-bottom: clamp(58px, 8vw, 96px);
}

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

.tutorial-hero .lede {
  max-width: 750px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
  margin-bottom: 28px;
}

.tutorial-facts span {
  display: inline-flex;
  max-width: 100%;
  min-height: 34px;
  align-items: center;
  padding: 6px 12px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-muted);
  font: 650 12px/1.5 var(--font-mono);
}

.tutorial-platform-note {
  margin-top: 30px;
  margin-bottom: 34px;
}

.tutorial-route {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 36px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  box-shadow: var(--shadow-low);
}

.tutorial-route-item {
  position: relative;
  min-width: 0;
  padding: 22px 18px;
  border-right: 1px solid var(--color-line);
}

.tutorial-route-item:last-child {
  border-right: 0;
}

.tutorial-route-number {
  display: block;
  margin-bottom: 10px;
  color: var(--color-accent-deep);
  font: 800 11px/1.4 var(--font-mono);
  letter-spacing: 0.12em;
}

.tutorial-route-item strong {
  display: block;
  margin-bottom: 6px;
  color: var(--color-ink);
  font: 800 13px/1.4 var(--font-mono);
  letter-spacing: 0.06em;
}

.tutorial-route-item > span:last-child {
  display: block;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.6;
}

.tutorial-step {
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.tutorial-step h2 {
  position: relative;
}

.step-heading-number {
  display: inline-flex;
  margin-right: 12px;
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 0.55em;
  letter-spacing: 0.08em;
  vertical-align: 0.18em;
}

.setup-checks {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  box-shadow: var(--shadow-low);
}

.setup-checks h3 {
  margin-bottom: 14px;
  font-size: 20px;
}

.setup-checks ul {
  margin-bottom: 0;
}

.mode-map {
  display: grid;
  gap: 0;
  margin-top: 32px;
  margin-bottom: 32px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  box-shadow: var(--shadow-low);
}

.mode-map > div {
  display: grid;
  grid-template-columns: minmax(120px, 0.35fr) minmax(0, 1fr);
  gap: 18px;
  padding: 17px 20px;
  border-bottom: 1px solid var(--color-line);
}

.mode-map > div:last-child {
  border-bottom: 0;
}

.mode-map strong {
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 13px;
}

.mode-map span {
  color: var(--color-muted);
}

.diagnostic-order {
  margin-top: 24px;
  margin-bottom: 30px;
  padding-left: 0;
  list-style: none;
  counter-reset: diagnostic;
}

.diagnostic-order li {
  position: relative;
  min-height: 54px;
  padding: 16px 18px 16px 62px;
  border-bottom: 1px solid var(--color-line);
  counter-increment: diagnostic;
}

.diagnostic-order li:first-child {
  border-top: 1px solid var(--color-line);
}

.diagnostic-order li::before {
  position: absolute;
  top: 16px;
  left: 16px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  color: var(--color-white-text);
  content: counter(diagnostic, decimal-leading-zero);
  font: 800 11px/1 var(--font-mono);
}

.diagnostic-order strong,
.diagnostic-order span {
  display: block;
}

.diagnostic-order strong {
  margin-bottom: 3px;
  color: var(--color-ink);
}

.diagnostic-order span {
  color: var(--color-muted);
}

.tutorial-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(230px, 0.42fr);
  gap: 32px;
  align-items: center;
  margin-top: 46px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--color-accent-dot);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-low);
}

.tutorial-next h3 {
  margin-bottom: 10px;
}

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

.tutorial-next-links {
  display: grid;
  gap: 10px;
}

.tutorial-next-links a {
  width: 100%;
}

@media (max-width: 760px) {
  .tutorial-route {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tutorial-route-item:nth-child(2) {
    border-right: 0;
  }

  .tutorial-route-item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--color-line);
  }

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

@media (max-width: 520px) {
  .tutorial-route {
    grid-template-columns: 1fr;
  }

  .tutorial-route-item,
  .tutorial-route-item:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
  }

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

  .mode-map > div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .diagnostic-order li {
    padding-right: 12px;
    padding-left: 56px;
  }

  .step-heading-number {
    display: block;
    margin-right: 0;
    margin-bottom: 8px;
    font-size: 13px;
    vertical-align: initial;
  }
}