.tutorial-hero {
  padding-top: 64px;
  padding-bottom: 70px;
}

.tutorial-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  align-items: center;
  gap: 70px;
}

.tutorial-hero-copy {
  position: relative;
  z-index: 2;
}

.tutorial-hero-copy h1 {
  max-width: 620px;
  margin: 20px 0 22px;
}

.tutorial-intro {
  max-width: 620px;
  margin-bottom: 24px;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.75;
}

.tutorial-route {
  position: relative;
  padding-top: 15px;
  padding-left: 16px;
}

.tutorial-route-back {
  position: absolute;
  inset: 0 16px 14px 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel-deep);
}

.tutorial-route-panel {
  position: relative;
}

.tutorial-route-svg {
  width: 100%;
  height: auto;
  color: var(--color-lavender);
}

.tutorial-route-grid {
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  opacity: .08;
}

.tutorial-route-line {
  fill: none;
  stroke: currentColor;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tutorial-route-guide {
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  stroke-dasharray: 5 7;
  opacity: .3;
}

.tutorial-route-node {
  fill: var(--color-lavender-light);
  stroke: var(--color-ink);
  stroke-width: 4;
}

.tutorial-route-label {
  fill: var(--color-lavender);
  font-family: var(--font-mono);
  font-size: 13px;
}

.tutorial-route-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-top: 1px solid var(--color-ink-rule);
  color: var(--color-lavender-mid);
  font-family: var(--font-mono);
  font-size: 10px;
}

.tutorial-article {
  padding-top: 54px;
  padding-bottom: var(--section-space);
}

.tutorial-article > .toc-tabs {
  margin-bottom: 34px;
}

.tutorial-article > .callout {
  max-width: var(--reading-width);
  margin-right: auto;
  margin-left: auto;
}

.tutorial-step {
  display: grid;
  grid-template-columns: minmax(100px, .26fr) minmax(0, 1fr);
  gap: 38px;
  max-width: 1040px;
  margin-inline: auto;
  padding-top: 68px;
  padding-bottom: 68px;
  border-bottom: 1px solid var(--color-border);
}

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

.tutorial-step-marker {
  position: sticky;
  top: calc(var(--header-height) + 72px);
  align-self: start;
  padding-top: 8px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
}

.tutorial-step-marker::after {
  display: block;
  width: 42px;
  height: 3px;
  margin-top: 13px;
  border-radius: var(--radius-pill);
  background: var(--color-ink);
  content: "";
}

.tutorial-step-content {
  max-width: var(--reading-width);
}

.tutorial-step-content h2 {
  margin-bottom: 25px;
  font-size: clamp(30px, 3.5vw, 43px);
}

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

.tutorial-step-content > p,
.platform-instruction p,
.tutorial-next p {
  color: var(--color-muted);
}

.tutorial-step-content > p {
  margin-bottom: 18px;
  font-size: 16px;
  line-height: 1.82;
}

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

.tutorial-action {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--color-border);
}

.tutorial-action-note {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.tutorial-text-link {
  margin-inline: 4px;
  border-bottom: 1px solid var(--color-lavender-mid);
  color: var(--color-text);
  font-weight: 750;
}

.tutorial-text-link:hover {
  border-bottom-color: var(--color-ink);
}

.platform-instructions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 30px 0;
}

.platform-instruction {
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.platform-instruction h3 {
  font-size: 21px;
}

.platform-instruction p {
  margin-bottom: 0;
  font-size: 14px;
  line-height: 1.75;
}

.platform-instruction .platform-instruction-label {
  margin-bottom: 12px;
  color: var(--color-lavender-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
}

.tutorial-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 34px;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel-deep);
}

.tutorial-next h3 {
  margin-bottom: 6px;
}

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

.tutorial-next .tutorial-next-label {
  margin-bottom: 7px;
  color: var(--color-lavender-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
}

@media (max-width: 980px) {
  .tutorial-hero-grid {
    gap: 38px;
  }

  .tutorial-route-status {
    flex-wrap: wrap;
    justify-content: flex-start;
  }
}

@media (max-width: 768px) {
  .tutorial-hero {
    padding-top: 38px;
    padding-bottom: 48px;
  }

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

  .tutorial-route {
    padding-top: 9px;
    padding-left: 8px;
  }

  .tutorial-route-label,
  .tutorial-route-status {
    display: none;
  }

  .tutorial-article {
    padding-top: 38px;
  }

  .tutorial-step {
    grid-template-columns: 1fr;
    gap: 15px;
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .tutorial-step-marker {
    position: static;
    padding-top: 0;
  }

  .platform-instructions {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 520px) {
  .tutorial-intro {
    font-size: 15px;
  }

  .tutorial-route-svg {
    min-height: 230px;
  }

  .tutorial-step-content > p {
    font-size: 15px;
  }

  .platform-instruction {
    padding: 19px;
  }

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

  .tutorial-action .btn {
    width: 100%;
  }

  .tutorial-next {
    padding: 21px;
  }

  .tutorial-next .btn {
    width: 100%;
  }
}