.tutorial-hero {
  position: relative;
  overflow: hidden;
}

.tutorial-hero::before {
  position: absolute;
  z-index: -1;
  top: 8%;
  right: -12%;
  width: min(48vw, 620px);
  aspect-ratio: 1;
  border-radius: var(--radius-circle);
  background:
    repeating-radial-gradient(circle at center, transparent 0 48px, var(--color-line) 49px 50px),
    radial-gradient(circle at 36% 30%, var(--color-ocean-bright), var(--color-ocean-dark) 58%, transparent 72%);
  opacity: .54;
  content: "";
  pointer-events: none;
}

.tutorial-hero::after {
  position: absolute;
  z-index: -1;
  top: 24%;
  right: 5%;
  width: min(38vw, 480px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-route), transparent);
  transform: rotate(-24deg);
  transform-origin: center;
  content: "";
  pointer-events: none;
}

.tutorial-hero .reading-wrap {
  position: relative;
}

.tutorial-hero h1 {
  max-width: 720px;
}

.tutorial-hero .lead {
  max-width: 680px;
}

.tutorial-hero-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tutorial-facts {
  max-width: 760px;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  list-style: none;
}

.tutorial-facts li {
  max-width: 100%;
  min-height: 32px;
  padding: 0 12px;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-panel-soft);
  color: var(--color-muted);
  font-size: .78rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tutorial-facts li::before {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: var(--radius-circle);
  background: var(--color-success);
  content: "";
}

.tutorial-body {
  padding-bottom: var(--section-space);
}

.tutorial-body > .toc-tabs {
  margin-bottom: 54px;
}

.tutorial-reading {
  width: 100%;
  max-width: 900px;
  margin-inline: auto;
}

.tutorial-reading > .callout {
  margin-top: 0;
  margin-bottom: 64px;
}

.guide-step {
  position: relative;
  padding-bottom: clamp(70px, 9vw, 116px);
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 28px;
}

.guide-step::before {
  position: absolute;
  top: 54px;
  bottom: 0;
  left: 28px;
  width: 1px;
  background: linear-gradient(180deg, var(--color-accent-border), var(--color-border), transparent);
  content: "";
}

.guide-step-marker {
  position: relative;
  z-index: 2;
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-circle);
  background: var(--color-panel-raised);
  color: var(--color-accent);
  box-shadow: inset 0 0 0 1px var(--color-accent-border), var(--shadow-panel);
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 760;
}

.guide-step-content {
  min-width: 0;
  padding-top: 5px;
}

.guide-step-label {
  margin: 0 0 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
}

.guide-step-content h2 {
  max-width: 720px;
}

.guide-step-content > p {
  color: var(--color-text-soft);
  line-height: 1.95;
}

.guide-step-content > p + p {
  margin-top: 19px;
}

.guide-step-content > .button {
  margin-top: 12px;
}

.guide-step-content pre {
  margin-top: 22px;
  margin-bottom: 22px;
}

.platform-guide-list {
  margin-top: 34px;
  display: grid;
  gap: 18px;
}

.platform-guide {
  padding: clamp(22px, 4vw, 34px);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: inset 0 0 0 1px var(--color-border);
}

.platform-guide-head {
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.platform-guide-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.platform-guide-icon svg {
  width: 25px;
  height: 25px;
}

.platform-guide-type {
  margin: 0 0 4px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .06em;
}

.platform-guide h3 {
  margin: 0;
}

.platform-guide > p {
  margin-bottom: 0;
  color: var(--color-muted);
  line-height: 1.9;
}

.platform-guide > p + p {
  margin-top: 16px;
}

.guide-inline-actions {
  margin-top: 24px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.tutorial-text-link {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: var(--color-accent-border);
  text-underline-offset: .2em;
}

.tutorial-finish {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 32px;
}

.tutorial-finish h2 {
  margin-bottom: 12px;
  font-size: clamp(1.7rem, 3.4vw, 2.65rem);
}

.tutorial-finish p:not(.section-kicker) {
  max-width: 650px;
  margin-bottom: 0;
  color: var(--color-muted);
  line-height: 1.85;
}

.tutorial-finish .button {
  position: relative;
  z-index: 2;
}

@media (max-width: 760px) {
  .tutorial-hero::before {
    top: 34%;
    right: -44%;
    width: 92vw;
    opacity: .34;
  }

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

  .guide-step {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 17px;
  }

  .guide-step::before {
    top: 46px;
    left: 22px;
  }

  .guide-step-marker {
    width: 46px;
    height: 46px;
  }

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

  .tutorial-finish .button {
    width: fit-content;
  }
}

@media (max-width: 480px) {
  .tutorial-hero-actions .button {
    flex: 1 1 140px;
  }

  .tutorial-facts {
    display: grid;
  }

  .tutorial-facts li {
    width: fit-content;
  }

  .guide-step {
    padding-bottom: 72px;
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .guide-step::before {
    display: none;
  }

  .guide-step-marker {
    width: 42px;
    height: 42px;
  }

  .guide-step-content {
    padding-top: 0;
  }

  .platform-guide-head {
    align-items: flex-start;
  }

  .platform-guide {
    padding: 20px;
  }

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

  .guide-inline-actions .button {
    width: 100%;
  }

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