.tutorial-hero {
  position: relative;
  overflow: clip;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-canvas);
}

.tutorial-hero::before {
  position: absolute;
  top: 0;
  right: var(--gutter);
  bottom: 0;
  width: 1px;
  background: var(--color-line-faint);
  content: "";
}

.tutorial-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.75fr);
  gap: clamp(44px, 7vw, 104px);
  align-items: center;
  min-height: 610px;
  padding-top: clamp(72px, 8vw, 112px);
  padding-bottom: clamp(72px, 8vw, 112px);
}

.tutorial-hero-copy {
  max-width: 700px;
}

.tutorial-hero-copy h1 {
  max-width: 660px;
}

.tutorial-hero-copy .lead {
  margin-bottom: 30px;
}

.tutorial-route {
  position: relative;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--color-text);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-paper);
}

.tutorial-route::before {
  position: absolute;
  top: -14px;
  right: 28px;
  width: 64px;
  border-top: 3px solid var(--color-accent);
  content: "";
}

.tutorial-route-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 34px;
  color: var(--color-muted);
  font-size: 11px;
}

.tutorial-route-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  margin-bottom: 30px;
}

.tutorial-route-track::before {
  position: absolute;
  top: 12px;
  right: 8%;
  left: 8%;
  border-top: 1px dashed var(--color-muted);
  content: "";
}

.tutorial-route-track span {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 8px;
  justify-items: center;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  text-align: center;
}

.tutorial-route-track span::before {
  width: 24px;
  height: 24px;
  border: 1px solid var(--color-text);
  border-radius: var(--radius-pill);
  background: var(--color-blue-panel);
  content: "";
}

.tutorial-route-track span:first-child::before,
.tutorial-route-track span:last-child::before {
  background: var(--color-accent);
}

.tutorial-route > p {
  margin-bottom: 24px;
  color: var(--color-muted);
  font-size: 15px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tutorial-facts span {
  max-width: 100%;
  padding: 5px 9px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  font-family: var(--font-mono);
  font-size: 10px;
  white-space: nowrap;
}

.tutorial-body {
  background: var(--color-white);
}

.tutorial-layout {
  position: relative;
}

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

.tutorial-callout {
  max-width: 920px;
  margin-bottom: 68px;
}

.tutorial-prose {
  max-width: 960px;
}

.tutorial-step {
  padding-top: 26px;
  padding-bottom: clamp(72px, 9vw, 118px);
  scroll-margin-top: var(--toc-offset);
}

.tutorial-step + .tutorial-step {
  border-top: 1px solid var(--color-border-soft);
}

.tutorial-step-heading {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: clamp(20px, 4vw, 48px);
  align-items: start;
  margin-bottom: 36px;
}

.tutorial-step-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 5px 12px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.tutorial-step-type {
  display: block;
  margin-bottom: 8px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.tutorial-step-heading h2 {
  margin-bottom: 0;
}

.tutorial-step-content {
  margin-left: 144px;
}

.tutorial-step-content > p,
.tutorial-step-content > pre,
.tutorial-step-content > .callout {
  max-width: 780px;
}

.tutorial-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  max-width: 780px;
  margin-top: 34px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-green-panel);
}

.tutorial-action strong {
  display: block;
  margin-bottom: 3px;
}

.tutorial-action p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.platform-instructions {
  display: grid;
  gap: 18px;
  max-width: 816px;
  margin: 38px 0;
}

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

.platform-instruction:nth-child(even) {
  background: var(--color-blue-panel);
}

.platform-instruction-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.platform-instruction-head .platform-icon {
  margin-bottom: 0;
  background: var(--color-white);
}

.platform-instruction-head .mono {
  color: var(--color-muted);
  font-size: 10px;
  letter-spacing: 0.08em;
}

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

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

.completion-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, auto);
  gap: clamp(28px, 6vw, 70px);
  align-items: center;
  margin-top: 42px;
  padding: clamp(28px, 5vw, 52px);
  border-radius: var(--radius-md);
  background: var(--color-panel-deep);
  color: var(--color-white);
}

.completion-panel .kicker {
  color: var(--color-sun);
}

.completion-panel p {
  margin-bottom: 0;
  color: var(--color-light-faint);
}

.completion-links {
  display: grid;
  gap: 10px;
}

.tutorial-action .button.button-dark {
  color: var(--color-white);
}

.completion-links .button {
  width: 100%;
}

.completion-links .button.button-primary {
  color: var(--color-white);
}

.float-cta svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

/* Keep the fixed guide action behind the footer's text columns. */
.site-footer {
  position: relative;
  z-index: 51;
}

@media (max-width: 960px) {
  .tutorial-hero-inner {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .tutorial-route {
    max-width: 700px;
  }

  .tutorial-step-content {
    margin-left: 0;
  }
}

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

  .tutorial-step-heading {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .tutorial-step-mark {
    width: fit-content;
  }

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

@media (max-width: 640px) {
  .tutorial-hero-inner {
    gap: 36px;
    padding-top: 48px;
    padding-bottom: 54px;
  }

  .tutorial-route {
    padding: 22px 18px;
  }

  .tutorial-route-head {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 26px;
  }

  .tutorial-route-track {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .tutorial-route-track::before {
    top: 10px;
    bottom: 10px;
    left: 11px;
    width: 1px;
    border-top: 0;
    border-left: 1px dashed var(--color-muted);
  }

  .tutorial-route-track span {
    grid-template-columns: 24px 1fr;
    align-items: center;
    justify-items: start;
    text-align: left;
  }

  .tutorial-route-track span::before {
    grid-column: 1;
  }

  .tutorial-route-track span {
    grid-auto-flow: column;
    justify-content: start;
  }

  .tutorial-callout {
    margin-bottom: 48px;
  }

  .tutorial-step {
    padding-bottom: 72px;
  }

  .tutorial-step-content > p,
  .tutorial-step-content > pre,
  .tutorial-step-content > .callout {
    max-width: 100%;
  }

  .tutorial-action {
    padding: 18px;
  }

  .platform-instruction {
    padding: 20px;
  }

  .completion-panel {
    padding: 24px 20px;
  }
}