.tutorial-hero {
  position: relative;
  max-width: 100%;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(180deg, var(--color-hero-top), var(--color-hero-bottom));
  padding-top: 64px;
  padding-bottom: 68px;
}

.tutorial-hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--color-accent-08) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-accent-08) 1px, transparent 1px);
  background-size: 28px 28px;
  content: "";
  opacity: .48;
}

.tutorial-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  gap: 72px;
  align-items: center;
}

.tutorial-hero-copy {
  position: relative;
  z-index: 1;
}

.tutorial-title {
  max-width: 9em;
  margin-top: 20px;
  margin-bottom: 0;
}

.tutorial-title::after {
  display: block;
  width: 92px;
  height: 4px;
  margin-top: 22px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.tutorial-lede {
  max-width: 42rem;
  margin-top: 25px;
  color: var(--color-muted);
  font-size: 19px;
  line-height: 1.78;
}

.tutorial-actions,
.tutorial-inline-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.tutorial-actions {
  margin-top: 30px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 25px;
}

.tutorial-route-card {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border: 1px solid var(--color-paper-12);
  border-radius: var(--radius-block);
  background: linear-gradient(180deg, var(--color-ink-panel), var(--color-ink-deep));
  color: var(--color-paper);
  padding: 28px;
  box-shadow: var(--shadow-accent), inset 0 1px 0 var(--color-paper-12);
}

.tutorial-route-card::before {
  position: absolute;
  top: -28%;
  right: -18%;
  width: 64%;
  aspect-ratio: 1;
  border: 1px solid var(--color-accent-22);
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent-16), transparent 68%);
  content: "";
}

.tutorial-route-head {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-paper-12);
}

.tutorial-route-head .mono-label {
  color: var(--color-amber);
}

.tutorial-route-head .status-chip {
  border-color: var(--color-paper-12);
  background: var(--color-paper-06);
}

.tutorial-route-list {
  position: relative;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
}

.tutorial-route-list li {
  position: relative;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 15px;
  align-items: start;
  padding-top: 10px;
  padding-bottom: 10px;
}

.tutorial-route-list li:not(:last-child)::after {
  position: absolute;
  top: 48px;
  bottom: -10px;
  left: 26px;
  width: 1px;
  background: var(--color-accent-32);
  content: "";
}

.route-mark {
  position: relative;
  z-index: 1;
  display: grid;
  width: 54px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--color-accent-55);
  border-radius: var(--radius-pill);
  background: var(--color-ink-card);
  color: var(--color-amber);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.tutorial-route-list strong {
  display: block;
  color: var(--color-paper);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 400;
}

.tutorial-route-list p {
  margin-top: 3px;
  color: var(--color-paper-72);
  font-size: 13px;
}

.tutorial-article {
  padding-top: 42px;
  padding-bottom: var(--space-section);
}

.tutorial-article .toc-tabs {
  top: 10px;
}

.tutorial-step {
  display: grid;
  grid-template-columns: 150px minmax(0, 820px);
  gap: 44px;
  justify-content: center;
  border-bottom: 1px solid var(--color-border);
  padding-top: 68px;
  padding-bottom: 68px;
}

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

.tutorial-step-label {
  position: sticky;
  top: calc(var(--header-height) + 90px);
  align-self: start;
  border-top: 2px solid var(--color-accent);
  color: var(--color-accent-dark);
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
}

.tutorial-step-body {
  min-width: 0;
}

.tutorial-step-body > h2 {
  margin-bottom: 25px;
}

.tutorial-step-body > p,
.platform-guide p,
.tutorial-resource p,
.verification-list p {
  color: var(--color-muted);
}

.tutorial-step-body > p {
  font-size: 17px;
  line-height: 1.86;
}

.tutorial-step-body a:not(.button):not(.tutorial-resource) {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.tutorial-step-body .callout {
  margin-top: 28px;
  margin-bottom: 28px;
}

.tutorial-step-body pre {
  margin-top: 24px;
  margin-bottom: 26px;
}

.tutorial-inline-actions {
  margin-top: 30px;
}

.platform-guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 32px;
  margin-bottom: 30px;
}

.platform-guide {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  padding: 25px;
  box-shadow: var(--shadow-panel);
}

.platform-guide-label {
  display: inline-flex;
  border: 1px solid var(--color-accent-55);
  border-radius: var(--radius-pill);
  background: var(--color-accent-08);
  color: var(--color-accent-dark);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
}

.platform-guide h3 {
  margin-top: 17px;
  margin-bottom: 12px;
  font-size: 27px;
}

.platform-guide p {
  font-size: 15px;
  line-height: 1.78;
}

.verification-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.verification-list > div {
  min-width: 0;
  border-top: 3px solid var(--color-accent);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  background: var(--color-panel);
  padding: 20px;
  box-shadow: var(--shadow-panel);
}

.verification-list strong {
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 400;
}

.verification-list p {
  margin-top: 8px;
  font-size: 13px;
}

.tutorial-resource-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-top: 32px;
}

.tutorial-resource {
  display: block;
  min-width: 0;
  min-height: 160px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  padding: 23px;
  box-shadow: var(--shadow-panel);
  transition: border-color var(--transition-fast), transform var(--transition-fast), background var(--transition-fast);
}

.tutorial-resource:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
  background: var(--color-accent-08);
}

.tutorial-resource strong {
  display: block;
  margin-top: 13px;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
}

.tutorial-resource p {
  margin-top: 7px;
  font-size: 14px;
}

@media (max-width: 1024px) {
  .tutorial-hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

  .tutorial-route-card {
    max-width: 720px;
  }

  .tutorial-step {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .tutorial-hero {
    padding-top: 48px;
    padding-bottom: 52px;
  }

  .tutorial-lede {
    font-size: 17px;
  }

  .tutorial-step {
    grid-template-columns: 1fr;
    gap: 18px;
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .tutorial-step-label {
    position: static;
    width: max-content;
    min-width: 76px;
  }

  .platform-guide-grid,
  .tutorial-resource-grid {
    grid-template-columns: 1fr;
  }

  .verification-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .tutorial-hero-grid {
    gap: 36px;
  }

  .tutorial-actions,
  .tutorial-inline-actions {
    align-items: stretch;
    flex-direction: column;
  }

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

  .tutorial-route-card {
    padding: 20px;
    border-radius: var(--radius-card);
  }

  .tutorial-route-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .tutorial-route-list li {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 12px;
  }

  .tutorial-route-list li:not(:last-child)::after {
    left: 23px;
  }

  .route-mark {
    width: 48px;
  }

  .tutorial-route-list strong {
    font-size: 18px;
  }

  .tutorial-article {
    padding-top: 26px;
  }

  .tutorial-step-body > p {
    font-size: 16px;
  }

  .platform-guide {
    padding: 20px;
  }

  .tutorial-resource {
    min-height: 0;
  }
}