.tutorial-hero {
  position: relative;
  max-width: 100%;
  padding-top: 58px;
  padding-bottom: 54px;
  overflow-x: clip;
}

.tutorial-hero::before {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--color-halo-accent), var(--color-halo-alt), transparent);
  content: "";
  pointer-events: none;
}

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

.tutorial-hero-card {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(0, 1.18fr) minmax(340px, .82fr);
  align-items: stretch;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(90deg, var(--color-panel-soft), var(--color-panel));
  box-shadow: var(--shadow-card);
}

.tutorial-hero-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  padding: 68px 58px;
}

.tutorial-hero-copy .badge {
  align-self: flex-start;
}

.tutorial-hero-copy h1 {
  max-width: 680px;
  margin-top: 20px;
}

.tutorial-intro {
  max-width: 650px;
  margin-top: 22px;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.75;
}

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

.tutorial-route {
  min-width: 0;
  margin: 28px;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: linear-gradient(155deg, var(--color-ink), var(--color-ink-raised));
  box-shadow: inset 0 1px 0 var(--color-panel-line-strong), var(--shadow-accent);
  color: var(--color-panel-text);
}

.tutorial-route-bar {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 7px;
  padding-inline: 18px;
  border-bottom: 1px solid var(--color-panel-line);
}

.tutorial-route-bar .mono {
  margin-left: auto;
  color: var(--color-panel-text-muted);
  font-size: 11px;
}

.tutorial-route-list {
  display: grid;
  padding: 12px 20px 20px;
}

.tutorial-route-list li {
  display: grid;
  min-width: 0;
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: 12px;
  padding-top: 13px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--color-panel-line);
}

.tutorial-route-list li:last-child {
  border-bottom: 0;
}

.route-index {
  display: grid;
  width: 32px;
  height: 32px;
  grid-row: 1 / 3;
  place-items: center;
  border: 1px solid var(--color-panel-line-strong);
  border-radius: var(--radius-xs);
  background: var(--color-panel-chip);
  color: var(--color-panel-text);
  font-size: 11px;
}

.tutorial-route-list b {
  color: var(--color-on-dark);
  font-size: 14px;
}

.tutorial-route-list small {
  color: var(--color-panel-text-muted);
  font-size: 12px;
}

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

.tutorial-reading .toc-tabs {
  margin-bottom: 26px;
}

.tutorial-section {
  padding-top: 68px;
  padding-bottom: 68px;
  border-bottom: 1px solid var(--color-border);
}

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

.step-heading {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 28px;
}

.step-mark {
  display: inline-flex;
  min-width: 78px;
  min-height: 34px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel-soft);
  color: var(--color-accent-dark);
  font-size: 11px;
  font-weight: 700;
}

.step-kicker {
  margin-bottom: 5px;
  color: var(--color-muted);
  font: 12px/1.4 var(--font-mono);
}

.tutorial-section > p {
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.9;
}

.tutorial-section > p + p {
  margin-top: 20px;
}

.tutorial-section > p a,
.client-guide p a {
  color: var(--color-accent-dark);
  font-weight: 650;
}

.tutorial-section > .callout {
  margin-bottom: 24px;
  line-height: 1.8;
}

.tutorial-section > p + .callout {
  margin-top: 24px;
}

.step-next {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  margin-top: 30px;
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel-soft);
}

.step-next .mono {
  color: var(--color-accent-dark);
  font-size: 11px;
  font-weight: 750;
}

.step-next p {
  color: var(--color-muted);
}

.client-guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 30px;
}

.client-guide {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.client-guide-head {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 16px;
}

.client-guide-head h3 {
  font-size: 21px;
}

.platform-mini {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--color-panel-soft);
  color: var(--color-text);
}

.platform-mini svg {
  width: 22px;
  height: 22px;
}

.client-guide p {
  color: var(--color-muted);
  font-size: 15px;
  line-height: 1.8;
}

.client-guide p + p {
  margin-top: 15px;
}

.completion-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 34px;
  padding: 30px;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--color-ink), var(--color-ink-raised));
  box-shadow: var(--shadow-accent);
  color: var(--color-panel-text);
}

.completion-panel .badge {
  border-color: var(--color-panel-line-strong);
  background: var(--color-panel-chip);
  color: var(--color-panel-text);
}

.completion-panel h3 {
  margin-top: 16px;
  color: var(--color-on-dark);
}

.completion-panel p {
  margin-top: 10px;
  color: var(--color-panel-text-muted);
}

.completion-links {
  display: grid;
  gap: 10px;
}

.completion-links .btn-solid {
  border-color: var(--color-on-dark);
  background: var(--color-on-dark);
  color: var(--color-ink);
}

.completion-links .btn-outline {
  border-color: var(--color-panel-line-strong);
  color: var(--color-on-dark);
}

.completion-links .btn-outline:hover {
  background: var(--color-panel-chip-active);
}

@media (max-width: 960px) {
  .tutorial-hero-card {
    grid-template-columns: 1fr;
  }

  .tutorial-hero-copy {
    padding: 48px 40px 24px;
  }

  .tutorial-route {
    margin-top: 12px;
  }

  .completion-panel {
    grid-template-columns: 1fr;
  }

  .completion-links {
    display: flex;
    flex-wrap: wrap;
  }
}

@media (max-width: 700px) {
  .tutorial-hero {
    padding-top: 32px;
    padding-bottom: 38px;
  }

  .tutorial-hero-copy {
    padding: 32px 22px 20px;
  }

  .tutorial-intro {
    font-size: 16px;
  }

  .tutorial-route {
    margin: 12px;
  }

  .tutorial-section {
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .client-guide-grid {
    grid-template-columns: 1fr;
  }

  .completion-links {
    display: grid;
  }

  .completion-links .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .tutorial-actions {
    display: grid;
  }

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

  .step-heading {
    gap: 12px;
  }

  .step-mark {
    min-width: 66px;
    padding-inline: 7px;
  }

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

  .client-guide {
    padding: 20px;
  }

  .completion-panel {
    padding: 22px;
  }

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