.tutorial-hero {
  position: relative;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(circle at 82% 18%, var(--color-hero-blue), var(--color-transparent) 34%),
    radial-gradient(circle at 68% 78%, var(--color-hero-mint), var(--color-transparent) 38%),
    var(--color-bg);
}

.tutorial-hero-grid {
  min-height: 610px;
  padding-top: clamp(58px, 8vw, 96px);
  padding-bottom: clamp(64px, 9vw, 108px);
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.78fr);
  align-items: center;
  gap: clamp(44px, 7vw, 92px);
}

.tutorial-hero-copy h1 {
  max-width: 13em;
  margin-bottom: 20px;
  font-size: clamp(36px, 4vw, 48px);
}

.tutorial-lead {
  max-width: 39em;
  color: var(--color-text-muted);
  font-size: 17px;
  line-height: 1.8;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.tutorial-facts span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tutorial-facts span::before {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-accent);
  content: "";
}

.tutorial-facts strong {
  color: var(--color-text);
  font-family: var(--font-mono);
}

.workflow-board {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-float);
  transform: rotate(1deg);
}

.workflow-board-head {
  min-height: 54px;
  padding: 14px 19px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.workflow-board-head strong {
  margin-left: 9px;
  color: var(--color-text-muted);
  font-size: 13px;
  letter-spacing: 0.03em;
}

.workflow-list {
  margin: 0;
  padding: 18px;
  display: grid;
  gap: 10px;
  list-style: none;
}

.workflow-list li {
  padding: 15px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
}

.workflow-number {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.workflow-list strong {
  display: block;
  margin-bottom: 2px;
  font-size: 14px;
}

.workflow-list small {
  display: block;
  color: var(--color-text-muted);
  font-size: 12px;
}

.workflow-state {
  padding: 4px 9px;
  overflow: hidden;
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-size: 11px;
  font-weight: 700;
}

.platform-links {
  margin: 22px 0 54px;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.platform-links .chip {
  color: var(--color-text-muted);
  text-decoration: none;
}

.tutorial-prose {
  font-size: 16.5px;
}

.tutorial-chapter {
  padding-top: 12px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: calc(var(--nav-height) + 92px);
}

.tutorial-chapter + .tutorial-chapter {
  padding-top: 66px;
}

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

.tutorial-chapter h2 {
  margin-top: 0;
}

.chapter-label {
  display: inline-flex;
  margin-bottom: 13px;
  padding: 5px 11px;
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-size: 12px;
  font-weight: 800;
}

.mode-strip {
  margin: 28px 0;
  padding: 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-soft);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}

.mode-strip div {
  padding: 15px 12px;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  text-align: center;
}

.mode-strip strong,
.mode-strip span {
  display: block;
}

.mode-strip strong {
  margin-bottom: 3px;
  color: var(--color-text);
  font-size: 14px;
}

.mode-strip span {
  color: var(--color-text-muted);
  font-size: 12px;
}

.verification-card {
  margin-top: 30px;
  padding: clamp(20px, 4vw, 30px);
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-soft);
}

.verification-card h3 {
  margin-bottom: 16px;
  font-size: 21px;
}

.check-list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 29px;
  color: var(--color-text-muted);
}

.check-list li::before {
  position: absolute;
  top: 0.35em;
  left: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-surface);
  content: "✓";
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 800;
  line-height: 1;
}

.next-route {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 42px;
}

.next-route > div:first-child {
  max-width: 650px;
}

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

.next-route-actions {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 860px) {
  .tutorial-hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
  }

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

  .workflow-board {
    width: min(100%, 650px);
    transform: none;
  }

  .next-route {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .tutorial-hero-grid {
    padding-top: 46px;
    padding-bottom: 64px;
    gap: 38px;
  }

  .tutorial-hero-copy h1 {
    font-size: clamp(26px, 7.5vw, 30px);
  }

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

  .workflow-list {
    padding: 12px;
  }

  .workflow-list li {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .workflow-state {
    grid-column: 2;
    justify-self: start;
  }

  .platform-links {
    margin-bottom: 42px;
  }

  .tutorial-chapter + .tutorial-chapter {
    padding-top: 54px;
  }

  .mode-strip {
    grid-template-columns: 1fr;
  }

  .mode-strip div {
    text-align: left;
  }

  .next-route-actions {
    width: 100%;
    flex-direction: column;
  }

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

@media (max-width: 390px) {
  .tutorial-facts {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .workflow-board-head {
    padding-inline: 14px;
  }

  .workflow-list li {
    padding: 13px;
  }
}