.tutorial-hero {
  position: relative;
  display: flex;
  min-height: calc(100svh - var(--header-height));
  padding-top: clamp(72px, 9vw, 124px);
  padding-bottom: clamp(64px, 8vw, 112px);
  overflow: hidden;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}

.tutorial-hero::before {
  position: absolute;
  top: 5%;
  left: 42%;
  width: min(52vw, 720px);
  aspect-ratio: 1;
  background: radial-gradient(circle, var(--color-accent-glow-soft), transparent 66%);
  border-radius: var(--radius-pill);
  content: "";
  pointer-events: none;
}

.tutorial-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  width: 100%;
  grid-template-columns: minmax(0, 1fr) minmax(420px, .9fr);
  gap: clamp(42px, 7vw, 96px);
  align-items: center;
}

.tutorial-intro {
  max-width: 690px;
}

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

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

.tutorial-intro .button-row {
  margin-top: 30px;
}

.tutorial-facts {
  display: flex;
  margin-top: 24px;
  flex-wrap: wrap;
  gap: 10px;
}

.tutorial-route {
  position: relative;
  width: 100%;
  max-width: 560px;
  justify-self: end;
  color: var(--color-accent);
}

.tutorial-route svg {
  width: 100%;
  height: auto;
}

.tutorial-route-line {
  fill: none;
  stroke: var(--color-line);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 7 9;
}

.tutorial-route-node {
  fill: var(--color-panel-raised);
  stroke: var(--color-line);
  stroke-width: 2;
}

.tutorial-route-node-current {
  fill: var(--color-accent);
  stroke: var(--color-accent-deep);
  filter: drop-shadow(0 0 9px var(--color-accent-glow-strong));
}

.tutorial-route-shield {
  fill: var(--color-panel-raised);
  stroke: var(--color-accent);
  stroke-width: 2;
}

.tutorial-route-check {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tutorial-route-label {
  position: absolute;
  padding: 5px 9px;
  color: var(--color-text-muted);
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: .72rem;
  white-space: nowrap;
}

.tutorial-route-label-start {
  top: 11%;
  left: 4%;
}

.tutorial-route-label-plan {
  top: 30%;
  left: 35%;
}

.tutorial-route-label-import {
  top: 50%;
  left: 67%;
}

.tutorial-route-label-connect {
  right: 0;
  bottom: 5%;
}

.tutorial-document {
  padding-top: clamp(48px, 7vw, 88px);
  padding-bottom: var(--section-space);
}

.tutorial-section {
  display: grid;
  padding-top: clamp(62px, 8vw, 108px);
  padding-bottom: clamp(62px, 8vw, 108px);
  grid-template-columns: minmax(210px, .55fr) minmax(0, 1.45fr);
  gap: clamp(32px, 7vw, 96px);
  border-bottom: 1px solid var(--color-border);
}

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

.section-heading {
  align-self: start;
}

.section-heading h2 {
  font-size: clamp(30px, 3.5vw, 46px);
}

.tutorial-copy {
  max-width: 820px;
}

.tutorial-copy > :last-child {
  margin-bottom: 0;
}

.step-actions {
  display: flex;
  margin-top: 30px;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
}

.platform-instructions {
  display: grid;
  gap: 18px;
}

.platform-instruction {
  padding: clamp(22px, 3.5vw, 34px);
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.platform-instruction-head {
  display: flex;
  margin-bottom: 22px;
  align-items: center;
  gap: 16px;
}

.platform-instruction-head .platform-icon {
  margin-bottom: 0;
  flex: 0 0 auto;
}

.platform-instruction-head h3 {
  margin-bottom: 3px;
  font-size: clamp(20px, 2vw, 25px);
}

.platform-instruction-head p {
  margin-bottom: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
}

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

@media (max-width: 1040px) {
  .tutorial-hero {
    min-height: auto;
  }

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

  .tutorial-route {
    width: min(100%, 620px);
    justify-self: center;
  }

  .tutorial-section {
    grid-template-columns: minmax(180px, .45fr) minmax(0, 1.55fr);
    gap: 42px;
  }
}

@media (max-width: 768px) {
  .tutorial-hero {
    padding-top: 64px;
    padding-bottom: 58px;
  }

  .tutorial-hero::before {
    top: 28%;
    left: 10%;
    width: 90vw;
  }

  .tutorial-hero-grid {
    gap: 34px;
  }

  .tutorial-route {
    max-width: 520px;
  }

  .tutorial-route-label {
    display: none;
  }

  .tutorial-document {
    padding-top: 32px;
  }

  .tutorial-section {
    display: block;
    padding-top: 68px;
    padding-bottom: 68px;
  }

  .section-heading {
    margin-bottom: 28px;
  }
}

@media (max-width: 640px) {
  .tutorial-facts {
    align-items: flex-start;
    flex-direction: column;
  }

  .tutorial-facts .capsule {
    max-width: 100%;
  }

  .tutorial-route {
    width: 112%;
    margin-left: -6%;
  }

  .platform-instruction {
    padding: 20px;
  }

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

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

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

@media (prefers-reduced-motion: reduce) {
  .tutorial-route {
    transform: none;
  }
}