.tutorial-hero {
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

.tutorial-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(420px, .96fr);
  min-height: 620px;
  padding-right: 0;
}

.tutorial-hero-copy {
  display: flex;
  max-width: 680px;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(64px, 8vw, 108px);
  padding-right: clamp(32px, 5vw, 76px);
  padding-bottom: clamp(64px, 8vw, 108px);
}

.tutorial-hero-copy h1 {
  max-width: 650px;
}

.tutorial-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 6px 0 22px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 0;
  margin: 0;
  padding: 0;
  color: var(--color-text-muted);
  font-size: 13px;
  list-style: none;
}

.tutorial-facts li + li::before {
  content: "·";
  margin-inline: 11px;
  color: var(--color-border);
}

.tutorial-route {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  padding: 40px;
  border-left: 1px solid var(--color-night-edge);
  background: var(--color-night);
  color: var(--color-cream-glow);
}

.tutorial-route::after {
  content: "";
  position: absolute;
  right: 8%;
  bottom: 8%;
  width: 132px;
  height: 132px;
  border: 1px solid var(--color-night-border);
  transform: rotate(-12deg);
}

.tutorial-route-head,
.tutorial-route-note {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--color-violet-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
}

.tutorial-route-head span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tutorial-route-head span::before {
  content: "";
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
}

.tutorial-route svg {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  width: calc(100% - 36px);
  transform: translate(-50%, -50%);
}

.tutorial-route-glow {
  fill: none;
  stroke: var(--color-cream-glow);
  stroke-linejoin: round;
  stroke-width: 9;
  opacity: .18;
}

.tutorial-route-line {
  fill: none;
  stroke: var(--color-cream-glow);
  stroke-linejoin: round;
  stroke-width: 2;
}

.tutorial-route-ring {
  fill: var(--color-night);
  stroke: var(--color-cream-glow);
  stroke-width: 1;
  opacity: .7;
}

.tutorial-route-core {
  fill: var(--color-cream-glow);
}

.tutorial-route-note {
  position: absolute;
  right: 40px;
  bottom: 40px;
  left: 40px;
  z-index: 2;
}

.tutorial-document {
  padding-top: clamp(48px, 6vw, 78px);
  padding-bottom: var(--section-space);
}

.tutorial-document .toc-tabs {
  margin-bottom: clamp(58px, 8vw, 94px);
}

.guide-step {
  position: relative;
  padding-bottom: clamp(66px, 8vw, 104px);
  padding-left: clamp(30px, 5vw, 68px);
}

.guide-step::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 0;
  left: 9px;
  width: 1px;
  background: var(--color-border);
}

.guide-step::after {
  content: "";
  position: absolute;
  top: 11px;
  left: 5px;
  width: 9px;
  height: 9px;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  box-shadow: 0 0 0 5px var(--color-paper);
}

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

.guide-step:last-child::before {
  bottom: 24px;
}

.guide-step-label {
  margin-bottom: 12px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .12em;
}

.guide-step h2 {
  font-size: clamp(30px, 4.5vw, 46px);
}

.guide-step h3 {
  font-size: clamp(21px, 2.7vw, 27px);
}

.guide-step p,
.guide-step li {
  color: var(--color-text-muted);
}

.guide-step p {
  font-size: 16px;
  line-height: 1.9;
}

.guide-step a:not(.btn-primary):not(.btn-secondary):not(.btn-dark) {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.guide-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  margin-top: 30px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-paper-panel);
}

.guide-action div {
  display: grid;
  gap: 3px;
}

.guide-action strong {
  color: var(--color-text);
  font-size: 15px;
}

.guide-action span {
  color: var(--color-text-muted);
  font-size: 13px;
}

.platform-instruction {
  margin: 34px 0;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-paper-panel);
}

.platform-instruction-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.platform-instruction-head h3 {
  margin-bottom: 0;
}

.platform-mark {
  display: grid;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--color-pill);
  color: var(--color-accent);
}

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

.platform-instruction p:last-child {
  margin-bottom: 0;
}

.tutorial-finish {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 36px;
  margin-top: 28px;
  padding: clamp(28px, 5vw, 48px);
  border: 1px solid var(--color-night-border);
  border-radius: var(--radius-sm);
  background: var(--color-night);
  color: var(--color-cream-glow);
}

.tutorial-finish h2 {
  margin-bottom: 10px;
}

.tutorial-finish p {
  max-width: 560px;
  margin-bottom: 0;
  color: var(--color-violet-muted);
}

.tutorial-finish .eyebrow {
  color: var(--color-violet-muted);
}

.tutorial-finish-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

@media (max-width: 980px) {
  .tutorial-hero-grid {
    grid-template-columns: 1fr;
    padding-inline: 0;
  }

  .tutorial-hero-copy {
    max-width: none;
    padding-right: var(--gutter);
    padding-left: var(--gutter);
  }

  .tutorial-route {
    min-height: 350px;
    border-top: 1px solid var(--color-night-edge);
    border-left: 0;
  }

  .tutorial-route svg {
    width: min(700px, calc(100% - 32px));
  }
}

@media (max-width: 768px) {
  .tutorial-route-head,
  .tutorial-route-note {
    display: none;
  }

  .tutorial-route {
    min-height: 280px;
    padding: 20px;
  }

  .tutorial-route::after {
    width: 86px;
    height: 86px;
  }

  .guide-action,
  .tutorial-finish {
    grid-template-columns: 1fr;
  }

  .tutorial-finish-links {
    align-items: flex-start;
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .tutorial-hero-copy {
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .tutorial-route {
    min-height: 220px;
  }

  .tutorial-document {
    padding-top: 40px;
  }

  .tutorial-document .toc-tabs {
    margin-bottom: 54px;
  }

  .guide-step {
    padding-bottom: 68px;
    padding-left: 26px;
  }

  .guide-step p {
    line-height: 1.82;
  }

  .guide-action .btn-primary,
  .guide-action .btn-secondary {
    width: 100%;
  }

  .platform-instruction {
    margin: 26px 0;
  }

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

  .tutorial-finish-links .btn-primary,
  .tutorial-finish-links .btn-dark {
    width: 100%;
  }
}

@media (max-width: 380px) {
  .tutorial-actions {
    display: grid;
  }

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

  .tutorial-facts li + li::before {
    content: none;
  }

  .platform-instruction-head {
    align-items: flex-start;
  }
}