.tutorial-hero {
  padding-top: clamp(36px, 6vw, 72px);
  padding-bottom: clamp(54px, 7vw, 92px);
  background:
    linear-gradient(var(--color-border) var(--line-hair), transparent var(--line-hair)) 0 0 / 80px 80px,
    linear-gradient(90deg, var(--color-border) var(--line-hair), transparent var(--line-hair)) 0 0 / 80px 80px,
    var(--color-page);
  border-bottom: var(--line-hair) solid var(--color-border);
}

.tutorial-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  align-items: stretch;
  gap: clamp(28px, 5vw, 72px);
}

.tutorial-hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding-top: 28px;
  padding-bottom: 28px;
}

.tutorial-hero-copy .badge {
  margin-bottom: 24px;
}

.tutorial-hero-copy .eyebrow {
  margin-bottom: 16px;
  color: var(--color-accent-dark);
}

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

.tutorial-hero-copy .lead {
  max-width: 650px;
}

.tutorial-hero-actions,
.tutorial-inline-actions,
.tutorial-complete-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tutorial-hero-actions {
  margin-top: 16px;
}

.tutorial-route-card {
  min-height: 470px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: var(--line-hair) solid var(--color-panel);
  border-radius: var(--radius-panel);
  color: var(--color-panel-text);
  background:
    radial-gradient(circle, var(--color-panel-dot) 1px, transparent 1.2px) 0 0 / 16px 16px,
    linear-gradient(var(--color-panel-grid) var(--line-hair), transparent var(--line-hair)) 0 0 / 64px 64px,
    linear-gradient(90deg, var(--color-panel-grid) var(--line-hair), transparent var(--line-hair)) 0 0 / 64px 64px,
    var(--color-panel);
}

.tutorial-route-head,
.tutorial-route-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.tutorial-route-head {
  padding: 20px 22px;
  color: var(--color-panel-muted);
  border-bottom: var(--line-hair) solid var(--color-panel-line);
}

.tutorial-route-art {
  width: 100%;
  flex: 1;
  min-height: 320px;
}

.tutorial-guide-line {
  fill: none;
  stroke: var(--color-panel-line);
  stroke-width: 1;
  stroke-dasharray: 4 8;
}

.tutorial-main-line {
  fill: none;
  stroke: var(--color-panel-text);
  stroke-width: 12;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tutorial-branch-line {
  fill: none;
  stroke: var(--color-panel-muted);
  stroke-width: 4;
  stroke-linecap: round;
}

.tutorial-route-point {
  fill: var(--color-panel);
  stroke: var(--color-panel-text);
  stroke-width: 4;
}

.tutorial-route-junction {
  fill: var(--color-accent);
  stroke: var(--color-panel);
  stroke-width: 5;
}

.tutorial-route-label {
  fill: var(--color-panel-text);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
}

.tutorial-route-foot {
  padding: 18px 22px;
  color: var(--color-panel-muted);
  border-top: var(--line-hair) solid var(--color-panel-line);
}

.tutorial-route-foot span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.tutorial-route-foot span::before {
  content: "";
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: var(--radius-control);
  background: var(--color-accent);
}

.tutorial-article {
  padding-top: 22px;
  padding-bottom: var(--section-space);
}

.tutorial-article .toc-tabs {
  margin-bottom: 46px;
}

.tutorial-intro {
  max-width: 920px;
  margin-inline: auto;
  padding-bottom: 56px;
}

.tutorial-intro .callout {
  margin-bottom: 28px;
}

.text-link {
  color: var(--color-accent-dark);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--color-accent-soft);
  text-underline-offset: 4px;
}

.tutorial-step {
  position: relative;
  display: grid;
  grid-template-columns: minmax(110px, .28fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 74px);
  padding-top: 72px;
  padding-bottom: 72px;
  border-top: var(--line-hair) solid var(--color-border);
}

.tutorial-step::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 72px;
  width: var(--line-hair);
  background: var(--color-border);
}

.tutorial-step-index {
  position: relative;
  z-index: 1;
  align-self: start;
  width: fit-content;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border: var(--line-hair) solid var(--color-accent);
  border-radius: var(--radius-control);
  color: var(--color-accent-dark);
  background: var(--color-page);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
}

.tutorial-step-body {
  max-width: 860px;
}

.tutorial-step-wide .tutorial-step-body {
  max-width: none;
}

.tutorial-step-body > p,
.client-instruction p {
  color: var(--color-text-muted);
}

.tutorial-step-body > p {
  font-size: 17px;
}

.tutorial-step-body pre {
  margin-top: 24px;
  margin-bottom: 28px;
}

.tutorial-inline-actions {
  margin-top: 28px;
}

.client-instruction-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 34px;
  margin-bottom: 34px;
  border-top: var(--line-hair) solid var(--color-border);
  border-left: var(--line-hair) solid var(--color-border);
}

.client-instruction {
  min-width: 0;
  padding: 30px;
  border-right: var(--line-hair) solid var(--color-border);
  border-bottom: var(--line-hair) solid var(--color-border);
  background: var(--color-page);
}

.client-instruction-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

.client-instruction-head h3 {
  margin: 0;
  font-size: 22px;
}

.client-platform-mark {
  min-width: 46px;
  min-height: 30px;
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-control);
  color: var(--color-panel-text);
  background: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .05em;
}

.client-followup {
  margin-bottom: 28px;
}

.tutorial-complete {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 38px;
  padding: 30px;
  border: var(--line-hair) solid var(--color-border);
  border-radius: var(--radius-panel);
  background: var(--color-panel-soft);
}

.tutorial-complete .mono-label {
  display: block;
  margin-bottom: 10px;
  color: var(--color-accent-dark);
}

.tutorial-complete h3 {
  margin-bottom: 8px;
}

.tutorial-complete p {
  margin: 0;
  color: var(--color-text-muted);
}

@media (max-width: 940px) {
  .tutorial-hero-grid {
    grid-template-columns: 1fr;
  }

  .tutorial-route-card {
    min-height: 420px;
  }

  .tutorial-step {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .tutorial-complete {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .tutorial-hero {
    padding-top: 32px;
    padding-bottom: 56px;
  }

  .tutorial-route-card {
    min-height: 370px;
  }

  .tutorial-route-art {
    min-height: 270px;
  }

  .tutorial-route-foot {
    flex-wrap: wrap;
  }

  .tutorial-article {
    padding-top: 16px;
  }

  .tutorial-article .toc-tabs {
    margin-bottom: 38px;
  }

  .tutorial-intro {
    padding-bottom: 44px;
  }

  .tutorial-step {
    padding-top: 56px;
    padding-bottom: 56px;
  }

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

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

  .client-instruction {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .tutorial-hero-actions,
  .tutorial-inline-actions,
  .tutorial-complete-actions {
    width: 100%;
  }

  .tutorial-hero-actions .button,
  .tutorial-inline-actions .button,
  .tutorial-complete-actions .button {
    width: 100%;
  }

  .tutorial-route-card {
    min-height: 340px;
  }

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

  .tutorial-route-foot {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .client-instruction-head {
    flex-direction: column;
  }

  .tutorial-complete {
    padding: 24px;
  }
}