.tutorial-hero {
  min-height: calc(100svh - var(--header-height));
  display: flex;
  align-items: center;
}

.tutorial-hero::before {
  position: absolute;
  width: min(56vw, 720px);
  height: min(56vw, 720px);
  right: -18vw;
  top: -20vw;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  box-shadow:
    0 0 0 42px color-mix(in srgb, var(--color-line) 25%, transparent),
    0 0 0 92px color-mix(in srgb, var(--color-line) 14%, transparent);
  content: "";
  pointer-events: none;
}

.tutorial-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .72fr);
  gap: clamp(40px, 7vw, 92px);
}

.tutorial-hero-copy {
  min-width: 0;
}

.tutorial-hero-copy h1 {
  max-width: 11em;
}

.tutorial-hero-copy .lead {
  margin-top: 22px;
}

.tutorial-hero-copy .button-row {
  margin-top: 28px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}

.tutorial-route {
  position: relative;
  overflow: clip;
}

.tutorial-route::before {
  position: absolute;
  width: 180px;
  height: 180px;
  right: -92px;
  bottom: -96px;
  border: 1px solid color-mix(in srgb, var(--color-accent) 25%, transparent);
  border-radius: var(--radius-pill);
  content: "";
}

.tutorial-route-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-line);
}

.tutorial-route-head > .mono {
  font-size: 11px;
}

.tutorial-route-list {
  position: relative;
  z-index: 1;
  display: grid;
  margin-top: 10px;
  counter-reset: tutorial-route;
}

.tutorial-route-list li {
  counter-increment: tutorial-route;
  border-bottom: 1px solid var(--color-line);
}

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

.tutorial-route-list a {
  display: grid;
  min-height: 58px;
  align-items: center;
  padding: 10px 4px;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  color: var(--color-text);
  font-weight: 800;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.tutorial-route-list a:hover {
  color: var(--color-accent);
  transform: translateX(3px);
}

.tutorial-route-list a span {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xs);
  color: var(--color-accent-deep);
  background: var(--color-panel-soft);
  font-size: 11px;
}

.tutorial-callout-wrap {
  padding-top: 32px;
  padding-bottom: 32px;
}

.tutorial-callout-wrap .callout {
  max-width: 920px;
}

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

.tutorial-step-alt {
  background: color-mix(in srgb, var(--color-panel-soft) 42%, transparent);
}

.tutorial-step-grid {
  display: grid;
  align-items: start;
  grid-template-columns: 150px minmax(0, 820px);
  justify-content: center;
  gap: clamp(32px, 6vw, 82px);
}

.tutorial-step-rail {
  position: sticky;
  top: var(--toc-offset);
  display: grid;
  justify-items: start;
  gap: 12px;
  padding-top: 8px;
}

.tutorial-step-code {
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
}

.tutorial-step-line {
  width: 48px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.tutorial-step-label {
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  writing-mode: vertical-rl;
}

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

.tutorial-step-body h2 {
  max-width: 15em;
}

.tutorial-step-body > p {
  margin-top: 20px;
  color: var(--color-text-soft);
  font-size: 17px;
  line-height: 1.85;
}

.tutorial-step-body > h2 + p {
  margin-top: 26px;
}

.tutorial-inline-link {
  color: var(--color-accent-deep);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.tutorial-action-row {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
}

.tutorial-action-row .text-soft {
  font-size: 13px;
}

.tutorial-code-sample {
  display: grid;
  max-width: 100%;
  gap: 8px;
  margin-top: 22px;
  padding: 18px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-panel-soft);
}

.tutorial-code-label {
  color: var(--color-accent-deep);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
}

.tutorial-code-sample code {
  min-width: max-content;
  color: var(--color-text);
  font-size: 13px;
}

.client-guide-grid {
  display: grid;
  margin-top: 34px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.client-guide-card {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: 0 1px 2px var(--color-shadow-soft);
}

.client-guide-heading {
  display: flex;
  align-items: center;
  gap: 14px;
}

.client-guide-heading .platform-mark {
  margin-bottom: 0;
}

.client-guide-heading h3 {
  font-size: 21px;
}

.client-guide-card p {
  margin-top: 18px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

.tutorial-finish {
  display: grid;
  align-items: center;
  margin-top: 36px;
  grid-template-columns: 1fr auto;
  gap: 30px;
}

.tutorial-finish h3 {
  margin-top: 15px;
}

.tutorial-finish p {
  max-width: 42em;
  margin-top: 10px;
  color: var(--color-text-soft);
}

@media (max-width: 1040px) {
  .tutorial-hero {
    min-height: auto;
  }

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

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

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

@media (max-width: 768px) {
  .tutorial-hero::before {
    width: 440px;
    height: 440px;
    right: -280px;
    top: -220px;
  }

  .tutorial-step-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .tutorial-step-rail {
    position: static;
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 0;
  }

  .tutorial-step-label {
    writing-mode: horizontal-tb;
  }

  .client-guide-grid {
    grid-template-columns: 1fr;
  }

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

  .tutorial-finish .btn-secondary {
    justify-self: start;
  }
}

@media (max-width: 640px) {
  .tutorial-hero-grid {
    gap: 34px;
  }

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

  .tutorial-facts {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .tutorial-action-row {
    align-items: stretch;
    flex-direction: column;
  }

  .tutorial-action-row .btn-primary,
  .tutorial-action-row .btn-secondary {
    width: 100%;
  }

  .client-guide-card {
    padding: 20px;
  }

  .tutorial-finish .btn-secondary {
    width: 100%;
  }
}