:root {
  --tutorial-marker-size: 66px;
  --tutorial-line-width: 1px;
  --tutorial-copy-width: 850px;
  --tutorial-route-width: 430px;
}

.tutorial-hero {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-canvas);
}

.tutorial-hero-grid {
  display: grid;
  min-height: 590px;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  align-items: center;
  gap: clamp(42px, 7vw, 92px);
  padding-top: clamp(54px, 8vw, 92px);
  padding-bottom: clamp(54px, 8vw, 92px);
}

.tutorial-hero-copy {
  max-width: 730px;
}

.tutorial-hero h1 {
  max-width: 760px;
  margin-bottom: 24px;
}

.tutorial-title-muted {
  display: block;
  color: var(--color-text-muted);
}

.tutorial-hero .lead {
  margin-bottom: 28px;
}

.tutorial-route {
  width: 100%;
  max-width: var(--tutorial-route-width);
  justify-self: end;
  padding: 24px;
}

.tutorial-route-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
}

.tutorial-route-head > .mono {
  color: var(--color-text-muted);
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.07em;
}

.tutorial-route-list {
  margin: 0;
  padding: 8px 0 0;
  list-style: none;
}

.tutorial-route-list li {
  position: relative;
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  gap: 12px;
  padding: 15px 0;
}

.tutorial-route-list li + li {
  border-top: 1px solid var(--color-border);
}

.tutorial-route-code {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text-muted);
  font-size: 0.72rem;
}

.tutorial-route-list li::after {
  position: absolute;
  right: 2px;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.tutorial-route-list strong,
.tutorial-route-list small {
  display: block;
}

.tutorial-route-list strong {
  font-size: 0.94rem;
}

.tutorial-route-list small {
  margin-top: 2px;
  color: var(--color-text-muted);
  font-size: 0.78rem;
}

.tutorial-document {
  padding-top: clamp(34px, 5vw, 58px);
  padding-bottom: var(--section-space);
}

.tutorial-document > .toc-tabs {
  margin-bottom: clamp(42px, 7vw, 76px);
}

.tutorial-step {
  position: relative;
  display: grid;
  grid-template-columns: var(--tutorial-marker-size) minmax(0, var(--tutorial-copy-width));
  justify-content: center;
  gap: clamp(24px, 4vw, 54px);
}

.tutorial-step + .tutorial-step {
  margin-top: clamp(66px, 9vw, 112px);
  border-top: 1px solid var(--color-border);
  padding-top: clamp(66px, 9vw, 112px);
}

.tutorial-step-marker {
  position: relative;
  display: flex;
  width: var(--tutorial-marker-size);
  height: var(--tutorial-marker-size);
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text-muted);
}

.tutorial-step-marker::after {
  position: absolute;
  top: calc(var(--tutorial-marker-size) + 14px);
  bottom: -48px;
  left: 50%;
  width: var(--tutorial-line-width);
  background: var(--color-border);
  content: "";
}

.tutorial-step:last-child .tutorial-step-marker::after {
  display: none;
}

.tutorial-step-marker .mono {
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

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

.tutorial-step-body h2 {
  margin-bottom: 24px;
}

.tutorial-step-body > p:not(.eyebrow):not(.tutorial-spec) {
  color: var(--color-text-muted);
  line-height: 1.86;
}

.tutorial-step-body > p strong {
  color: var(--color-text);
}

.tutorial-step-body .callout {
  margin: 24px 0;
}

.tutorial-step-body .button-row {
  margin-top: 28px;
}

.tutorial-step-body pre {
  margin: 22px 0;
}

.tutorial-spec {
  margin: 32px 0 0;
  border-top: 1px solid var(--color-border);
  padding-top: 15px;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.035em;
  overflow-wrap: anywhere;
}

.tutorial-platform-list {
  display: grid;
  gap: 14px;
  margin: 30px 0;
}

.tutorial-platform {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: clamp(22px, 4vw, 34px);
  background: var(--color-panel);
}

.tutorial-platform-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.tutorial-platform-code {
  display: inline-flex;
  min-width: 48px;
  min-height: 34px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-canvas);
  color: var(--color-info);
  font-size: 0.68rem;
  font-weight: 700;
}

.tutorial-platform h3 {
  margin: 0;
  font-size: clamp(20px, 2.5vw, 25px);
}

.tutorial-platform p {
  margin-bottom: 12px;
  color: var(--color-text-muted);
  line-height: 1.82;
}

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

@media (max-width: 960px) {
  .tutorial-hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .tutorial-route {
    max-width: none;
    justify-self: stretch;
  }
}

@media (max-width: 720px) {
  :root {
    --tutorial-marker-size: 48px;
  }

  .tutorial-hero-grid {
    gap: 36px;
  }

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

  .tutorial-step-marker {
    width: auto;
    max-width: 92px;
    padding-inline: 14px;
  }

  .tutorial-step-marker::after {
    display: none;
  }

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

@media (max-width: 480px) {
  .tutorial-route {
    padding: 18px;
  }

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

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

  .tutorial-step-body .button-row {
    align-items: stretch;
    flex-direction: column;
  }

  .tutorial-step-body .button-row .text-link {
    padding: 8px 0;
  }
}