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

.tutorial-hero::before,
.tutorial-hero::after {
  position: absolute;
  width: 190px;
  height: 190px;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
  content: "";
  opacity: 0.1;
  pointer-events: none;
}

.tutorial-hero::before {
  top: 48px;
  left: -112px;
}

.tutorial-hero::after {
  right: -118px;
  bottom: 38px;
}

.tutorial-hero-inner {
  padding-top: 104px;
  padding-bottom: 96px;
  text-align: center;
}

.tutorial-hero h1 {
  max-width: 920px;
  margin: 24px auto 0;
}

.tutorial-lead {
  max-width: 760px;
  margin: 24px auto 0;
  color: var(--color-muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.75;
}

.tutorial-facts {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 26px;
}

.tutorial-actions {
  justify-content: center;
  margin-top: 30px;
}

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

.tutorial-guide > .toc-tabs {
  top: 12px;
}

.tutorial-guide > .callout {
  max-width: 940px;
  margin: 42px auto 0;
}

.tutorial-step {
  display: grid;
  grid-template-columns: minmax(92px, 0.22fr) minmax(0, 1fr);
  gap: 48px;
  max-width: 1080px;
  margin-inline: auto;
  padding-top: 96px;
  padding-bottom: 96px;
  border-bottom: 1px solid var(--color-line);
}

.tutorial-step-index {
  position: sticky;
  top: 90px;
  align-self: start;
  padding-top: 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tutorial-step-body {
  min-width: 0;
}

.tutorial-step-body h2 {
  max-width: 760px;
  margin-top: 0;
}

.tutorial-step-body > p {
  max-width: 820px;
  font-size: 16.5px;
  line-height: 1.9;
}

.tutorial-step-body.prose a.btn-primary {
  color: var(--color-white);
  text-decoration: none;
}

.tutorial-step-body pre {
  max-width: 820px;
}

.tutorial-inline-action {
  display: flex;
  max-width: 820px;
  align-items: center;
  gap: 20px;
  margin-top: 30px;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.tutorial-inline-action span {
  min-width: 0;
  color: var(--color-muted);
  font-size: 13px;
}

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

.client-guide-card {
  min-width: 0;
  padding: 26px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-canvas);
  box-shadow: var(--shadow-soft);
}

.client-guide-heading {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 18px;
}

.client-guide-heading h3 {
  margin: 0;
  font-size: 21px;
}

.client-platform-mark {
  display: grid;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: var(--radius-small);
  background: var(--color-panel);
  color: var(--color-accent-dark);
}

.client-platform-mark svg {
  width: 24px;
  height: 24px;
}

.client-guide-card p {
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.8;
}

.client-guide-card p:last-child {
  margin-bottom: 0;
}

.tutorial-download-note {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  margin-top: 22px;
  padding: 25px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.tutorial-download-note strong {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 16px;
}

.tutorial-download-note p {
  margin: 5px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.tutorial-step-final {
  border-bottom: 0;
}

.tutorial-finish-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

@media (max-width: 860px) {
  .tutorial-step {
    grid-template-columns: minmax(72px, 0.16fr) minmax(0, 1fr);
    gap: 30px;
  }

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

@media (max-width: 768px) {
  .tutorial-hero-inner {
    padding-top: 76px;
    padding-bottom: 72px;
  }

  .tutorial-hero::before,
  .tutorial-hero::after {
    display: none;
  }

  .tutorial-guide {
    padding-top: 34px;
  }

  .tutorial-guide > .callout {
    margin-top: 30px;
  }

  .tutorial-step {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    padding-top: 68px;
    padding-bottom: 68px;
  }

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

  .tutorial-step-body > p {
    font-size: 16px;
  }
}

@media (max-width: 640px) {
  .tutorial-actions .btn {
    width: 100%;
  }

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

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

  .client-guide-card {
    padding: 22px 19px;
  }

  .tutorial-download-note {
    grid-template-columns: minmax(0, 1fr);
    padding: 22px 19px;
  }

  .tutorial-download-note .btn {
    width: 100%;
  }

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

  .tutorial-finish-actions .btn {
    width: 100%;
  }
}