.tutorial-hero {
  border-bottom: var(--line-thin) solid var(--color-line);
  background: var(--color-canvas);
}

.tutorial-hero-grid {
  display: grid;
  min-height: 560px;
  grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr);
  padding-top: clamp(56px, 8vw, 96px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.tutorial-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: var(--line-thin) solid var(--color-line);
  padding-right: clamp(28px, 5vw, 68px);
}

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

.tutorial-lead {
  max-width: 35em;
  margin-bottom: 28px;
  color: var(--color-ink-soft);
  font-size: 18px;
  line-height: 1.8;
}

.tutorial-hero-copy .trust-list {
  margin-top: 26px;
}

.tutorial-route {
  display: flex;
  min-height: 360px;
  align-items: center;
  padding-left: clamp(28px, 5vw, 68px);
}

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

.tutorial-svg-frame,
.tutorial-svg-grid {
  fill: none;
  stroke: var(--color-line);
}

.tutorial-svg-grid {
  stroke-dasharray: 5 7;
}

.tutorial-svg-route {
  fill: none;
  stroke: var(--color-accent);
  stroke-linecap: square;
  stroke-linejoin: miter;
  stroke-width: 5;
}

.tutorial-svg-node {
  fill: var(--color-canvas);
  stroke: var(--color-accent);
  stroke-width: 3;
}

.tutorial-svg-end {
  fill: var(--color-accent);
  stroke: var(--color-accent);
  stroke-width: 3;
}

.tutorial-overview {
  margin-top: 42px;
  border-top: var(--line-thin) solid var(--color-line);
  padding-top: 32px;
}

.tutorial-overview h2 {
  font-size: clamp(28px, 4vw, 40px);
}

.tutorial-overview p {
  color: var(--color-ink-soft);
  font-size: 17px;
}

.tutorial-text-link {
  border-bottom: var(--line-thin) solid var(--color-accent);
  color: var(--color-accent-deep);
  font-weight: 700;
}

.tutorial-text-link:hover {
  border-bottom-color: var(--color-accent-deep);
  color: var(--color-ink);
}

.tutorial-document {
  counter-reset: tutorial-step;
}

.tutorial-step {
  position: relative;
  counter-increment: tutorial-step;
  border-top: var(--line-thin) solid var(--color-line);
}

.tutorial-step-alt {
  background: var(--color-panel);
}

.tutorial-step-head {
  position: relative;
  margin-bottom: 38px;
  border-bottom: var(--line-thin) solid var(--color-line);
  padding: 0 0 28px 78px;
}

.tutorial-step-head::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  background: var(--color-accent);
  color: var(--color-canvas);
  content: counter(tutorial-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 800;
}

.tutorial-step-code {
  display: block;
  margin-bottom: 10px;
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
}

.tutorial-step-head h2 {
  margin-bottom: 12px;
}

.tutorial-step-head p {
  max-width: 44em;
  margin-bottom: 0;
  color: var(--color-ink-soft);
  font-size: 17px;
}

.tutorial-prose {
  color: var(--color-ink-soft);
  font-size: 16px;
  line-height: 1.9;
}

.tutorial-prose > p,
.tutorial-prose > pre,
.tutorial-prose > .callout {
  margin-bottom: 24px;
}

.tutorial-prose h3 {
  margin-top: 38px;
  padding-left: 16px;
  border-left: 5px solid var(--color-accent);
  font-size: 23px;
}

.tutorial-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  margin-top: 38px;
  border: var(--line-thin) solid var(--color-line);
  background: var(--color-canvas);
  padding: 24px;
}

.tutorial-action p {
  margin: 5px 0 0;
  color: var(--color-ink-soft);
}

.tutorial-platform-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 34px 0;
}

.tutorial-platform-grid .platform-card {
  min-height: 330px;
}

.tutorial-platform-grid .platform-card p {
  font-size: 15px;
  line-height: 1.8;
}

.tutorial-platform-code {
  margin-bottom: 24px;
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .06em;
}

.tutorial-check {
  margin-top: 36px;
  border: var(--line-thin) solid var(--color-line);
  background: var(--color-panel);
  padding: 26px;
}

.tutorial-check h3 {
  margin-top: 0;
}

.tutorial-check ul {
  display: grid;
  gap: 12px;
  list-style: none;
}

.tutorial-check li {
  position: relative;
  border-top: var(--line-thin) solid var(--color-line);
  padding: 12px 0 0 24px;
}

.tutorial-check li::before {
  position: absolute;
  top: 20px;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--color-success);
  content: "";
}

.tutorial-final-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

@media (max-width: 900px) {
  .tutorial-hero-grid {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .tutorial-hero-copy {
    border-right: 0;
    border-bottom: var(--line-thin) solid var(--color-line);
    padding-right: 0;
    padding-bottom: 48px;
  }

  .tutorial-route {
    min-height: 320px;
    padding-top: 38px;
    padding-left: 0;
  }
}

@media (max-width: 768px) {
  .tutorial-hero-grid {
    padding-top: 42px;
    padding-bottom: 42px;
  }

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

  .tutorial-route .drawing-note {
    display: none;
  }

  .tutorial-step-head {
    padding-left: 66px;
  }

  .tutorial-step-head::before {
    width: 46px;
    height: 46px;
  }

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

  .tutorial-platform-grid .platform-card {
    min-height: 0;
  }

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

  .tutorial-action .btn {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .tutorial-lead {
    font-size: 16px;
  }

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

  .tutorial-step-head {
    padding: 62px 0 24px;
  }

  .tutorial-step-head::before {
    width: 48px;
    height: 48px;
  }

  .tutorial-prose {
    font-size: 15px;
  }

  .tutorial-action,
  .tutorial-check {
    padding: 20px;
  }

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

  .tutorial-final-links .btn {
    width: 100%;
  }
}

@media (max-width: 390px) {
  .tutorial-route {
    min-height: 190px;
  }

  .tutorial-route .drawing-heading {
    display: none;
  }

  .tutorial-action {
    padding: 16px;
  }
}