.tutorial-hero {
  position: relative;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(180deg, var(--color-canvas), var(--color-panel));
  color: var(--color-ink);
}

.tutorial-hero::before {
  position: absolute;
  top: 0;
  right: 0;
  width: min(42vw, 620px);
  height: 100%;
  background:
    repeating-linear-gradient(
      90deg,
      var(--color-stripe) 0 1px,
      transparent 1px 13px
    );
  content: "";
  opacity: 0.34;
  -webkit-mask-image: linear-gradient(90deg, transparent, var(--color-ink));
  mask-image: linear-gradient(90deg, transparent, var(--color-ink));
  pointer-events: none;
}

.tutorial-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 610px;
  padding-top: clamp(64px, 8vw, 108px);
  padding-bottom: clamp(64px, 8vw, 108px);
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  align-items: center;
  gap: clamp(44px, 7vw, 92px);
}

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

.tutorial-heading h1 {
  max-width: 650px;
  margin-top: 24px;
}

.tutorial-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.tutorial-route {
  display: grid;
  margin: 0;
  padding: 14px;
  gap: 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-deep);
  list-style: none;
}

.tutorial-route li {
  display: grid;
  min-width: 0;
  padding: 18px;
  border-radius: var(--radius-card);
  background: var(--color-panel);
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  gap: 15px;
}

.tutorial-route li:nth-child(2),
.tutorial-route li:nth-child(4) {
  background: var(--color-accent-surface);
}

.tutorial-route-index {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: var(--radius-control);
  background: var(--gradient-accent);
  color: var(--color-on-accent);
  font: 700 13px/1 var(--font-mono);
  box-shadow: var(--shadow-button);
}

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

.tutorial-route strong {
  margin-bottom: 2px;
  font-size: 16px;
}

.tutorial-route div > span {
  color: var(--color-ink-muted);
  font-size: 13px;
}

.tutorial-index {
  padding-bottom: clamp(54px, 7vw, 84px);
}

.tutorial-index .toc {
  margin-top: 34px;
}

.tutorial-article {
  min-width: 0;
}

.tutorial-step {
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.tutorial-step-heading {
  display: grid;
  margin-bottom: 34px;
  grid-template-columns: 64px minmax(0, 1fr);
  align-items: start;
  gap: 20px;
}

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

.tutorial-step-heading .eyebrow {
  margin-bottom: 7px;
}

.tutorial-step-mark {
  display: grid;
  width: 64px;
  min-height: 64px;
  padding: 8px;
  place-items: center;
  border-radius: var(--radius-card);
  background: var(--gradient-accent);
  color: var(--color-on-accent);
  font: 750 14px/1 var(--font-mono);
  box-shadow: var(--shadow-button);
}

.tutorial-step h3 {
  margin-top: 2.1em;
}

.tutorial-step p {
  line-height: 1.9;
}

.tutorial-checklist {
  display: grid;
  margin: 34px 0;
  gap: 14px;
}

.tutorial-checklist section {
  padding: 22px 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-card);
}

.tutorial-checklist h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 18px;
}

.tutorial-checklist p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.tutorial-next {
  text-align: center;
}

.tutorial-next .lead {
  margin-right: auto;
  margin-left: auto;
}

.tutorial-next .tutorial-actions {
  justify-content: center;
}

@media (max-width: 900px) {
  .tutorial-hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .tutorial-route {
    width: 100%;
    max-width: 620px;
  }

  .tutorial-hero::before {
    width: 70vw;
    opacity: 0.22;
  }
}

@media (max-width: 640px) {
  .tutorial-hero-grid {
    padding-top: 48px;
    padding-bottom: 58px;
    gap: 38px;
  }

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

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

  .tutorial-route {
    padding: 10px;
    border-radius: var(--radius-large);
  }

  .tutorial-route li {
    padding: 14px;
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .tutorial-route-index {
    width: 42px;
    height: 42px;
  }

  .tutorial-step-heading {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 14px;
  }

  .tutorial-step-mark {
    width: 48px;
    min-height: 48px;
    padding: 6px;
    border-radius: var(--radius-control);
    font-size: 11px;
  }

  .tutorial-checklist section {
    padding: 20px;
  }
}