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

.tutorial-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr);
  gap: 72px;
  align-items: center;
}

.tutorial-hero-copy h1 {
  max-width: 760px;
  margin-top: 20px;
  margin-bottom: 24px;
}

.tutorial-hero-copy .lead {
  max-width: 700px;
}

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

.tutorial-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 40px 0 0;
  padding: 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  list-style: none;
}

.tutorial-facts li {
  padding: 18px 20px;
  border-left: 1px solid var(--color-border);
}

.tutorial-facts li:first-child {
  border-left: 0;
  padding-left: 0;
}

.tutorial-facts strong,
.tutorial-facts span {
  display: block;
}

.tutorial-facts strong {
  margin-bottom: 4px;
  color: var(--color-text);
  font-size: 14px;
}

.tutorial-facts span {
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.55;
}

.tutorial-route {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.tutorial-route::before {
  position: absolute;
  top: 72px;
  bottom: 48px;
  left: 47px;
  border-left: 2px dashed var(--color-accent);
  content: "";
}

.tutorial-route-title {
  margin-bottom: 24px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
}

.tutorial-route ol {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tutorial-route li {
  position: relative;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  min-height: 54px;
}

.tutorial-route li::before {
  position: relative;
  z-index: 1;
  width: 14px;
  height: 14px;
  justify-self: center;
  border: 3px solid var(--color-panel);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
  content: "";
}

.tutorial-route li span {
  grid-column: 2;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.tutorial-route li strong {
  grid-column: 2;
  margin-top: -16px;
  color: var(--color-text);
  font-size: 15px;
}

.tutorial-document {
  padding-top: 28px;
  padding-bottom: var(--section-space);
}

.tutorial-document > .toc-tabs {
  margin-bottom: 56px;
}

.tutorial-reading {
  width: 100%;
  max-width: var(--reading-width);
  margin-inline: auto;
}

.tutorial-reading > .callout {
  margin-top: 0;
  margin-bottom: 68px;
}

.tutorial-step {
  padding-top: 18px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--color-border);
}

.tutorial-step + .tutorial-step {
  padding-top: 72px;
}

.step-heading {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  margin-bottom: 28px;
}

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

.step-marker {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-xs);
  padding: 7px 10px;
  background: var(--color-bg);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .04em;
}

.step-kicker {
  margin-bottom: 8px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .04em;
}

.tutorial-step > p,
.platform-instruction p,
.tutorial-complete > p {
  font-size: 16px;
  line-height: 1.9;
}

.tutorial-inline-button {
  margin-top: 8px;
  text-decoration: none !important;
}

main .prose a.btn-primary {
  color: var(--color-bg) !important;
}

main a.btn-secondary.tutorial-inline-button {
  color: var(--color-text) !important;
}

main a.btn-secondary.tutorial-inline-button:hover {
  color: var(--color-accent-dark) !important;
}

.platform-instructions {
  display: grid;
  gap: 18px;
  margin-top: 34px;
  margin-bottom: 34px;
}

.platform-instruction {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
  background: var(--color-bg);
}

.platform-instruction:nth-child(even) {
  background: var(--color-panel);
}

.platform-instruction h3 {
  margin-top: 12px;
  font-size: 23px;
}

.platform-label {
  display: inline-flex;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 5px 10px;
  background: var(--color-panel-strong);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
}

.tutorial-complete {
  margin-top: 72px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: 34px;
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.tutorial-complete h2 {
  font-size: clamp(28px, 3vw, 40px);
}

.tutorial-complete .cta-row {
  margin-top: 26px;
}

@media (max-width: 960px) {
  .tutorial-hero-grid {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .tutorial-route {
    max-width: 680px;
  }

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

  .tutorial-facts li,
  .tutorial-facts li:first-child {
    padding: 15px 0;
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }

  .tutorial-facts li:first-child {
    border-top: 0;
  }
}

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

  .tutorial-hero-grid {
    gap: 38px;
  }

  .tutorial-route {
    padding: 24px 20px;
  }

  .tutorial-route::before {
    top: 66px;
    bottom: 42px;
    left: 37px;
  }

  .tutorial-route li {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
  }

  .tutorial-document {
    padding-top: 20px;
  }

  .tutorial-document > .toc-tabs {
    margin-bottom: 42px;
  }

  .tutorial-reading > .callout {
    margin-bottom: 52px;
  }

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

  .tutorial-step + .tutorial-step {
    padding-top: 56px;
  }

  .step-heading {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .step-marker {
    justify-self: start;
  }

  .platform-instruction {
    padding: 22px 20px;
  }

  .tutorial-complete {
    margin-top: 56px;
    padding: 26px 22px;
  }
}

@media (max-width: 480px) {
  .tutorial-route {
    padding-inline: 16px;
  }

  .tutorial-route::before {
    left: 31px;
  }

  .tutorial-route li {
    grid-template-columns: 30px minmax(0, 1fr);
  }

  .tutorial-step > p,
  .platform-instruction p,
  .tutorial-complete > p {
    font-size: 15px;
  }

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