.tutorial-hero {
  position: relative;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
}

.tutorial-hero::before {
  position: absolute;
  top: -260px;
  right: -180px;
  width: 880px;
  height: 760px;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(closest-side, color-mix(in srgb, var(--color-sunrise) 78%, var(--color-transparent)), var(--color-transparent)),
    radial-gradient(closest-side at 74% 68%, color-mix(in srgb, var(--color-rose) 48%, var(--color-transparent)), var(--color-transparent));
}

.tutorial-hero-grid {
  position: relative;
  display: grid;
  min-height: 650px;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.72fr);
  align-items: center;
  gap: 72px;
  padding-top: 76px;
  padding-bottom: 84px;
}

.tutorial-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.tutorial-hero-copy h1 {
  margin-top: 22px;
}

.tutorial-lead {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-size: 17px;
}

.tutorial-route {
  position: relative;
  z-index: 2;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  transform: rotate(1.5deg);
}

.tutorial-route-head {
  display: flex;
  min-height: 50px;
  align-items: center;
  gap: 13px;
  padding-inline: 17px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: color-mix(in srgb, var(--color-canvas) 54%, var(--color-surface));
  font-size: 12px;
  font-weight: 650;
}

.tutorial-route-head .status-dot {
  margin-left: auto;
}

.tutorial-route-list {
  position: relative;
  display: grid;
  gap: 0;
  padding: 16px 22px 20px;
  list-style: none;
}

.tutorial-route-list::before {
  position: absolute;
  top: 46px;
  bottom: 50px;
  left: 40px;
  width: 1px;
  content: "";
  background: var(--color-border);
}

.tutorial-route-list li {
  position: relative;
  display: flex;
  min-height: 74px;
  align-items: center;
  gap: 16px;
  padding: 10px;
  border-bottom: 1px solid color-mix(in srgb, var(--color-border) 68%, var(--color-transparent));
}

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

.route-marker {
  display: grid;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--color-brand) 42%, var(--color-border));
  border-radius: var(--radius-pill);
  color: var(--color-brand-deep);
  background: var(--color-surface);
  font-size: 12px;
  font-weight: 800;
}

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

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

.tutorial-route-list small {
  margin-top: 3px;
  color: var(--color-text-muted);
  font-size: 11.5px;
}

.tutorial-main {
  position: relative;
}

.tutorial-reading {
  max-width: 980px;
  margin-inline: auto;
}

.tutorial-article {
  margin-top: 44px;
}

.step-block {
  padding-top: 26px;
  padding-bottom: 62px;
  border-bottom: 1px solid var(--color-border);
}

.step-block:first-child {
  padding-top: 8px;
}

.step-block:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.step-heading {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 26px;
}

.step-heading .step-marker {
  display: grid;
  width: 50px;
  height: 50px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--color-brand) 45%, var(--color-border));
  border-radius: var(--radius-pill);
  color: var(--color-brand-deep);
  background: color-mix(in srgb, var(--color-brand) 8%, var(--color-surface));
  font-size: 12px;
  font-weight: 800;
}

.step-heading h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 44px);
}

.step-kicker {
  margin-bottom: 5px;
  color: var(--color-brand-deep);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.step-block > p,
.platform-guide p {
  line-height: 1.85;
}

.flow-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.example-box {
  display: grid;
  gap: 8px;
  margin: 24px 0;
  padding: 18px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-ink-dark);
  color: var(--color-dark-text);
  -webkit-overflow-scrolling: touch;
}

.example-box span {
  color: var(--color-dark-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.example-box code {
  width: max-content;
  min-width: 100%;
  color: var(--color-dark-text);
  font-size: 13px;
}

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

.platform-guide {
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-low);
}

.platform-guide-head {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 17px;
}

.platform-guide-head h3 {
  margin: 0;
  font-size: 22px;
}

.platform-guide p {
  font-size: 14.5px;
}

.completion-panel {
  margin-top: 28px;
  padding: 24px;
  border: 1px solid color-mix(in srgb, var(--color-positive) 38%, var(--color-border));
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-positive) 6%, var(--color-surface));
}

.completion-panel > div {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
}

.completion-panel p {
  color: var(--color-text-muted);
}

.next-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 13px;
  margin-top: 34px;
}

.next-links a {
  display: flex;
  min-height: 126px;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  background: var(--color-surface);
  text-decoration: none;
  box-shadow: var(--shadow-low);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.next-links a:hover {
  transform: translateY(-2px);
  border-color: var(--color-brand);
  box-shadow: var(--shadow-card);
}

.next-links span {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.next-links strong {
  color: var(--color-brand-deep);
  font-size: 14px;
}

.tutorial-finish {
  border-top: 1px solid var(--color-dark-line);
}

.tutorial-finish-row {
  display: grid;
  min-height: 330px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 54px;
  padding-top: 72px;
  padding-bottom: 72px;
}

.tutorial-finish-row > div:first-child {
  max-width: 720px;
}

.tutorial-finish-row h2 {
  margin-top: 18px;
}

.tutorial-finish-row p {
  max-width: 650px;
}

.tutorial-finish-row .cta-row {
  flex-direction: column;
  align-items: stretch;
  min-width: 190px;
  margin: 0;
}

.dark-section .tutorial-finish-row .btn-quiet {
  border-color: var(--color-dark-line);
  color: var(--color-dark-text);
  background: color-mix(in srgb, var(--color-surface) 7%, var(--color-transparent));
}

@media (max-width: 980px) {
  .tutorial-hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 42px;
    padding-top: 68px;
    padding-bottom: 72px;
  }

  .tutorial-route {
    max-width: 620px;
    transform: none;
  }

  .tutorial-finish-row {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .tutorial-finish-row .cta-row {
    max-width: 360px;
    flex-direction: row;
  }
}

@media (max-width: 768px) {
  .tutorial-hero::before {
    top: 40px;
    right: -300px;
    width: 700px;
    height: 620px;
  }

  .platform-guides,
  .next-links {
    grid-template-columns: 1fr;
  }

  .platform-guide {
    padding: 22px;
  }

  .next-links a {
    min-height: 108px;
  }

  .tutorial-finish-row .cta-row {
    max-width: none;
  }
}

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

  .tutorial-lead {
    font-size: 15.5px;
  }

  .tutorial-route-list {
    padding-inline: 14px;
  }

  .tutorial-route-list::before {
    left: 32px;
  }

  .tutorial-route-list li {
    padding-inline: 0;
  }

  .step-block {
    padding-top: 18px;
    padding-bottom: 48px;
  }

  .step-heading {
    gap: 12px;
  }

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

  .step-heading h2 {
    font-size: clamp(27px, 8vw, 34px);
  }

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

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

  .example-box {
    padding: 15px;
  }

  .platform-guide {
    padding: 19px;
  }

  .tutorial-finish-row {
    min-height: auto;
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .tutorial-finish-row .cta-row {
    flex-direction: column;
  }
}