.tutorial-hero {
  position: relative;
  overflow: hidden;
  padding-top: 72px;
  padding-bottom: 88px;
  background:
    radial-gradient(760px 520px at 88% 18%, var(--color-accent-a28), var(--color-transparent) 68%),
    radial-gradient(880px 620px at 4% 100%, var(--color-accent-dark-a34), var(--color-transparent) 66%),
    linear-gradient(32deg, var(--color-panel-a50), var(--color-transparent) 52%),
    var(--color-night);
}

.tutorial-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--color-muted-a09) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-muted-a09) 1px, var(--color-transparent) 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(90deg, var(--color-transparent), var(--color-night), var(--color-transparent));
}

.tutorial-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, 520px);
  align-items: center;
  gap: 72px;
}

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

.tutorial-hero h1 {
  max-width: 760px;
  color: var(--color-text);
  font-size: clamp(36px, 4vw, 48px);
  line-height: 1.08;
  letter-spacing: -0.025em;
}

.tutorial-route {
  position: relative;
  min-width: 0;
  padding: 1px;
  background: linear-gradient(145deg, var(--color-accent-dark), var(--color-accent), var(--color-cyan));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-deep), var(--shadow-glow);
}

.tutorial-route::before {
  content: '';
  position: absolute;
  z-index: -1;
  inset: -42px;
  background: radial-gradient(closest-side, var(--color-accent-a20), var(--color-transparent));
  border-radius: var(--radius-pill);
  pointer-events: none;
}

.tutorial-route-head,
.tutorial-route-foot {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
}

.tutorial-route-head {
  justify-content: space-between;
  padding: 15px 18px;
  color: var(--color-text-muted);
  background: var(--color-panel);
  border-bottom: 1px solid var(--color-border);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  font-size: 12px;
}

.tutorial-route-state {
  color: var(--color-lime);
  font-weight: 800;
  letter-spacing: 0.1em;
}

.tutorial-route-list {
  list-style: none;
  padding: 20px;
  background: linear-gradient(150deg, var(--color-panel), var(--color-night-a98));
}

.tutorial-route-list li {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 15px;
  min-width: 0;
  padding-top: 15px;
  padding-bottom: 15px;
}

.tutorial-route-list li:not(:last-child)::after {
  content: '';
  position: absolute;
  bottom: -7px;
  left: 20px;
  width: 1px;
  height: 20px;
  background: linear-gradient(var(--color-accent), var(--color-cyan));
  box-shadow: 0 0 9px var(--color-accent-a52);
}

.tutorial-route-index {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--color-night);
  background: var(--color-lime);
  border-radius: var(--radius-sm);
  box-shadow: 0 0 20px var(--color-lime-a22);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 900;
}

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

.tutorial-route-list strong {
  color: var(--color-cyan);
  font-family: var(--font-mono);
  font-size: 14px;
}

.tutorial-route-list div span {
  margin-top: 3px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.tutorial-route-foot {
  gap: 9px;
  padding: 13px 18px;
  color: var(--color-text-muted);
  background: var(--color-panel);
  border-top: 1px solid var(--color-border);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-size: 11px;
}

.tutorial-route-foot span {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  background: var(--color-success);
  border-radius: var(--radius-pill);
  box-shadow: 0 0 8px var(--color-success-a80);
}

.tutorial-nav-section {
  position: relative;
  z-index: 3;
  padding-top: 62px;
  padding-bottom: 48px;
  background: var(--color-surface);
}

.tutorial-nav-section h2 {
  margin-bottom: 24px;
}

.tutorial-section {
  scroll-margin-top: calc(var(--header-height) + 18px);
}

.tutorial-section-alt {
  background:
    linear-gradient(90deg, var(--color-accent-a10), var(--color-transparent) 34%),
    var(--color-surface-pure);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.tutorial-section .prose > p {
  color: var(--color-ink-muted);
  line-height: 1.9;
}

.tutorial-section .prose > p:last-child {
  margin-bottom: 0;
}

.tutorial-section .prose h3 {
  position: relative;
  padding-left: 18px;
}

.tutorial-section .prose h3::before {
  content: '';
  position: absolute;
  top: 0.24em;
  bottom: 0.24em;
  left: 0;
  width: 4px;
  background: linear-gradient(var(--color-accent), var(--color-cyan));
  border-radius: var(--radius-pill);
}

.tutorial-step-heading {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  align-items: start;
  gap: 20px;
  margin-bottom: 34px;
}

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

.tutorial-step-heading .section-kicker {
  margin-top: 4px;
  margin-bottom: 8px;
}

.tutorial-step-number {
  display: grid;
  width: 68px;
  height: 68px;
  place-items: center;
  color: var(--color-night);
  background: var(--color-lime);
  border: 1px solid var(--color-lime);
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 28px var(--color-lime-a22);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 900;
}

.tutorial-results {
  scroll-margin-top: calc(var(--header-height) + 18px);
  background:
    radial-gradient(760px 480px at 84% 20%, var(--color-accent-a20), var(--color-transparent) 68%),
    var(--color-night);
}

.tutorial-results > .wrap > h2 {
  max-width: 720px;
}

.tutorial-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.tutorial-result-grid .card {
  min-width: 0;
}

.tutorial-result-grid .card p {
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.tutorial-result-key {
  display: inline-block;
  max-width: 100%;
  margin-bottom: 16px;
  overflow: hidden;
  color: var(--color-night);
  background: var(--color-lime);
  border: 1px solid var(--color-lime);
  border-radius: var(--radius-xs);
  padding: 4px 9px;
  font-size: 12px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tutorial-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 36px;
  padding: 28px;
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-deep);
}

.tutorial-next h3 {
  color: var(--color-text);
}

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

.tutorial-next-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

@media (max-width: 980px) {
  .tutorial-hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }

  .tutorial-route {
    width: min(100%, 620px);
  }
}

@media (max-width: 760px) {
  .tutorial-hero {
    padding-top: 52px;
    padding-bottom: 64px;
  }

  .tutorial-hero h1 {
    font-size: clamp(24px, 7vw, 30px);
  }

  .tutorial-result-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .tutorial-next {
    grid-template-columns: minmax(0, 1fr);
  }

  .tutorial-next-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 520px) {
  .tutorial-hero-grid {
    gap: 38px;
  }

  .tutorial-route-list {
    padding: 16px;
  }

  .tutorial-step-heading {
    grid-template-columns: 50px minmax(0, 1fr);
    gap: 14px;
  }

  .tutorial-step-number {
    width: 50px;
    height: 50px;
    font-size: 15px;
  }

  .tutorial-step-heading .section-kicker {
    margin-top: 0;
  }

  .tutorial-next {
    padding: 20px;
  }

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

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