.tutorial-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  align-items: center;
  gap: clamp(42px, 7vw, 96px);
}

.tutorial-hero-copy {
  max-width: 760px;
}

.tutorial-hero h1 {
  max-width: 16em;
  margin-bottom: 22px;
}

.tutorial-lead {
  max-width: 720px;
  margin-bottom: 28px;
  color: var(--color-muted);
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.75;
}

.tutorial-eyebrow,
.tutorial-kicker {
  margin-bottom: 12px;
  color: var(--color-brand-deep);
  font-family: var(--font-code);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tutorial-route {
  position: relative;
  display: grid;
  gap: 0;
  padding: 18px 28px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-window);
  background: var(--color-panel);
  box-shadow: var(--shadow-float);
}

.tutorial-route::before {
  position: absolute;
  top: 48px;
  bottom: 48px;
  left: 55px;
  width: 1px;
  background: var(--color-sketch);
  content: "";
}

.tutorial-route-item {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 92px;
}

.tutorial-route-number {
  display: grid;
  width: 56px;
  height: 56px;
  flex: 0 0 56px;
  place-items: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-page);
  color: var(--color-brand-deep);
  font: 700 12px/1 var(--font-code);
  box-shadow: var(--shadow-chip);
}

.tutorial-route-item strong,
.tutorial-route-item small {
  display: block;
}

.tutorial-route-item strong {
  margin-bottom: 2px;
  font-family: var(--font-display);
  font-size: 17px;
}

.tutorial-route-item small {
  color: var(--color-muted);
}

.tutorial-start {
  padding-bottom: clamp(64px, 9vw, 120px);
}

.tutorial-start .toc-nav {
  margin-bottom: 36px;
}

.tutorial-anchor {
  scroll-margin-top: 96px;
}

.tutorial-prerequisites {
  display: grid;
  grid-template-columns: minmax(220px, 0.65fr) minmax(0, 1.35fr);
  gap: clamp(32px, 7vw, 90px);
  margin-top: 72px;
}

.tutorial-prerequisites h2 {
  max-width: 8em;
}

.tutorial-prerequisites-copy p {
  color: var(--color-ink);
}

.tutorial-prerequisites-copy p + p {
  margin-top: 20px;
}

.tutorial-step {
  display: grid;
  grid-template-columns: 90px minmax(0, 820px);
  justify-content: center;
  scroll-margin-top: 78px;
}

.tutorial-step-reverse {
  grid-template-columns: minmax(0, 820px) 90px;
}

.tutorial-step-reverse .tutorial-step-rail {
  grid-column: 2;
  grid-row: 1;
}

.tutorial-step-reverse .tutorial-step-content {
  grid-column: 1;
  grid-row: 1;
}

.tutorial-step-rail {
  display: flex;
  align-items: center;
  flex-direction: column;
}

.tutorial-step-index {
  display: grid;
  width: 62px;
  height: 62px;
  flex: 0 0 62px;
  place-items: center;
  border: 2px solid var(--color-brand);
  border-radius: var(--radius-pill);
  background: var(--color-page);
  color: var(--color-brand-deep);
  font: 800 13px/1 var(--font-code);
}

.tutorial-step-line {
  width: 1px;
  min-height: 120px;
  flex: 1;
  margin-top: 20px;
  background: var(--color-sketch);
}

.tutorial-step-content {
  min-width: 0;
  padding: 2px 28px 0;
}

.tutorial-step-content h2 {
  margin-bottom: 28px;
}

.tutorial-step-content > p {
  margin-bottom: 20px;
}

.interface-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 11px;
  margin: 32px 0;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-muted);
  font-family: var(--font-code);
  font-size: 13px;
}

.interface-path span:nth-child(odd) {
  padding: 6px 10px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xs);
  background: var(--color-page);
  color: var(--color-ink);
}

.tutorial-callout {
  margin: 32px 0;
}

.mode-comparison {
  display: grid;
  gap: 12px;
  margin: 34px 0;
}

.mode-row {
  display: grid;
  grid-template-columns: minmax(160px, 0.45fr) minmax(0, 1.55fr);
  align-items: center;
  gap: 24px;
  padding: 18px 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-page);
}

.mode-row.is-recommended {
  border-color: var(--color-brand);
  background: var(--color-panel);
}

.mode-row > div {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
}

.mode-row p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.connection-map {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  margin: 34px 0;
  padding: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-large);
  background: var(--color-panel);
}

.connection-node {
  min-width: 0;
  padding: 18px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-page);
  text-align: center;
}

.connection-node.is-active {
  border-color: var(--color-brand);
}

.connection-node span,
.connection-node small {
  display: block;
}

.connection-node span {
  font-weight: 750;
}

.connection-node small {
  margin-top: 4px;
  color: var(--color-muted);
  font-size: 12px;
}

.connection-arrow {
  color: var(--color-brand);
  font-family: var(--font-code);
}

.verify-sequence {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 34px 0;
}

.verify-sequence > div {
  padding: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-panel);
}

.verify-number {
  display: block;
  margin-bottom: 18px;
  color: var(--color-brand-deep);
  font: 800 13px/1 var(--font-code);
}

.verify-sequence strong {
  display: block;
  margin-bottom: 8px;
}

.verify-sequence p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.daily-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(36px, 7vw, 90px);
}

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

.daily-heading p:last-child {
  color: var(--color-muted);
}

.daily-notes {
  border-top: 1px solid var(--color-line);
}

.daily-notes article {
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr);
  gap: 10px 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-line);
}

.daily-notes article > span {
  color: var(--color-brand-deep);
  font: 700 12px/1.5 var(--font-code);
}

.daily-notes h3 {
  margin: 0;
  font-size: 19px;
}

.daily-notes p {
  grid-column: 2;
  margin: 0;
  color: var(--color-muted);
}

.tutorial-finish {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 34px;
}

.tutorial-finish p:last-child {
  max-width: 680px;
  color: var(--color-muted);
}

@media (max-width: 900px) {
  .tutorial-hero,
  .tutorial-prerequisites,
  .daily-layout {
    grid-template-columns: 1fr;
  }

  .tutorial-hero-copy {
    max-width: none;
  }

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

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

  .tutorial-route-item {
    min-height: 80px;
  }

  .tutorial-prerequisites h2 {
    max-width: none;
  }

  .tutorial-step,
  .tutorial-step-reverse {
    grid-template-columns: 70px minmax(0, 1fr);
  }

  .tutorial-step-reverse .tutorial-step-rail {
    grid-column: 1;
  }

  .tutorial-step-reverse .tutorial-step-content {
    grid-column: 2;
  }

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

@media (max-width: 700px) {
  .tutorial-step,
  .tutorial-step-reverse {
    grid-template-columns: 46px minmax(0, 1fr);
  }

  .tutorial-step-index {
    width: 42px;
    height: 42px;
    flex-basis: 42px;
    font-size: 11px;
  }

  .tutorial-step-content {
    padding-right: 0;
    padding-left: 14px;
  }

  .mode-row,
  .daily-notes article {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .daily-notes p {
    grid-column: auto;
  }

  .connection-map {
    grid-template-columns: 1fr;
  }

  .connection-arrow {
    transform: rotate(90deg);
    justify-self: center;
  }

  .verify-sequence {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .tutorial-route {
    grid-template-columns: 1fr;
    padding: 16px 20px;
  }

  .tutorial-route-item {
    min-height: 72px;
  }

  .tutorial-route-number {
    width: 48px;
    height: 48px;
    flex-basis: 48px;
  }

  .interface-path {
    align-items: flex-start;
    flex-direction: column;
  }

  .interface-path span:nth-child(even) {
    transform: rotate(90deg);
    margin-left: 16px;
  }

  .tutorial-step-line {
    min-height: 70px;
  }
}