:root {
  --tutorial-blue-soft: var(--color-blue-low);
  --tutorial-green-soft: var(--color-green-low);
  --tutorial-orange-soft: var(--color-orange-low);
  --tutorial-yellow-soft: var(--component-yellow-soft);
  --tutorial-track: var(--color-line);
}

.tutorial-hero {
  position: relative;
  padding-top: clamp(68px, 9vw, 112px);
  padding-bottom: clamp(78px, 10vw, 128px);
  overflow-x: clip;
}

.tutorial-hero::before {
  content: "";
  position: absolute;
  top: -180px;
  right: -150px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--tutorial-yellow-soft), var(--color-transparent) 68%);
  pointer-events: none;
}

.tutorial-hero::after {
  content: "";
  position: absolute;
  bottom: -240px;
  left: -210px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--tutorial-blue-soft), var(--color-transparent) 70%);
  pointer-events: none;
}

.tutorial-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  align-items: center;
  gap: clamp(48px, 8vw, 96px);
}

.tutorial-hero-copy {
  max-width: 670px;
}

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

.tutorial-lead {
  max-width: 650px;
  margin-bottom: 28px;
  color: var(--color-ink-muted);
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.8;
}

.tutorial-facts {
  margin-top: 22px;
}

.tutorial-map {
  overflow: hidden;
  border-radius: var(--radius-feature);
  background: var(--color-page);
  color: var(--color-ink);
  box-shadow: var(--shadow-card);
}

.tutorial-map-head {
  display: flex;
  min-height: 58px;
  padding: 16px 22px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--color-highlight);
  color: var(--color-highlight-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.tutorial-map-list {
  display: grid;
  margin: 0;
  padding: 20px;
  gap: 8px;
  list-style: none;
}

.tutorial-map-list li {
  position: relative;
  display: flex;
  min-height: 76px;
  padding: 15px 16px;
  align-items: center;
  gap: 16px;
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.tutorial-map-list li:not(:last-child)::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 37px;
  z-index: 1;
  width: 2px;
  height: 8px;
  background: var(--tutorial-track);
}

.tutorial-map-number {
  display: grid;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  place-items: center;
  border-radius: 50%;
  background: var(--color-page);
  color: var(--color-brand-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  box-shadow: 0 5px 16px var(--color-shadow-soft);
}

.tutorial-map-list div {
  display: grid;
  line-height: 1.45;
}

.tutorial-map-list strong {
  font-size: 16px;
}

.tutorial-map-list div span {
  color: var(--color-ink-muted);
  font-size: 13px;
}

.tutorial-band {
  overflow-x: clip;
  background: var(--color-highlight);
  color: var(--color-highlight-ink);
}

.tutorial-band-inner {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.7vw, 18px);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.tutorial-band-inner span {
  position: relative;
  flex: 0 0 auto;
}

.tutorial-band-inner span:not(:last-child)::after {
  content: "→";
  position: absolute;
  left: calc(100% + clamp(12px, 3vw, 42px));
  color: var(--color-brand-deep);
}

.tutorial-content {
  padding-top: 44px;
  padding-bottom: var(--section-space);
}

.tutorial-content .toc {
  top: 12px;
}

.tutorial-section {
  padding-top: clamp(72px, 9vw, 112px);
  scroll-margin-top: 80px;
}

.step-heading {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  max-width: 900px;
  margin-bottom: 34px;
  align-items: start;
  gap: 24px;
}

.step-index {
  display: grid;
  width: 68px;
  height: 68px;
  place-items: center;
  border-radius: var(--radius-large);
  background: var(--color-brand);
  color: var(--color-white);
  box-shadow: var(--shadow-button);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 800;
}

.step-heading .eyebrow {
  margin-bottom: 10px;
}

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

.tutorial-reading {
  max-width: var(--reading-width);
  margin-inline: auto;
}

.tutorial-reading > p {
  color: var(--color-ink-muted);
  line-height: 1.9;
}

.tutorial-reading > p strong {
  color: var(--color-ink);
}

.ready-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
  gap: 12px;
}

.ready-strip > div {
  display: grid;
  min-height: 120px;
  padding: 20px;
  align-content: center;
  border-radius: var(--radius-large);
  background: var(--color-panel);
}

.ready-strip strong {
  margin-bottom: 6px;
}

.ready-strip span {
  color: var(--color-ink-muted);
  font-size: 13px;
  line-height: 1.55;
}

.tutorial-feature {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.8fr);
  margin-block: 40px;
  padding: clamp(26px, 4vw, 42px);
  gap: clamp(28px, 5vw, 50px);
  background: var(--color-panel);
  box-shadow: none;
}

.tutorial-feature h3 {
  font-size: clamp(23px, 3vw, 30px);
}

.tutorial-feature-visual {
  display: grid;
  min-height: 260px;
  padding: 24px;
  place-items: center;
  background: var(--tutorial-blue-soft);
}

.tutorial-feature-visual .ui-fragment {
  width: 100%;
}

.next-step-link {
  display: flex;
  min-height: 82px;
  margin-top: 38px;
  padding: 18px 22px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-radius: var(--radius-large);
  background: var(--color-brand);
  color: var(--color-white);
  text-decoration: none;
  box-shadow: var(--shadow-button);
  transition: transform 180ms var(--ease-standard), background-color 180ms ease;
}

.next-step-link:hover {
  transform: translateY(-2px);
  background: var(--color-brand-deep);
  color: var(--color-white);
}

.next-step-link span {
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.next-step-link strong {
  color: var(--color-white);
}

.mode-board {
  display: grid;
  margin-block: 36px;
  gap: 14px;
}

.mode-item {
  padding: 26px;
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-ink);
}

.mode-item-primary {
  background: var(--tutorial-blue-soft);
}

.mode-item h3 {
  margin-top: 16px;
  margin-bottom: 8px;
  font-size: 23px;
}

.mode-item p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.connection-scene {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1.2fr);
  margin-block: 38px;
  padding: clamp(26px, 5vw, 48px);
  align-items: center;
  gap: clamp(28px, 5vw, 54px);
  border-radius: var(--radius-feature);
  background: var(--color-highlight);
  color: var(--color-highlight-ink);
}

.connection-copy h3 {
  font-size: clamp(24px, 3.2vw, 32px);
}

.connection-copy p {
  margin-bottom: 0;
}

.connection-controls {
  display: grid;
  padding: 16px;
  gap: 10px;
  border-radius: var(--radius-large);
  background: var(--color-page);
  color: var(--color-ink);
  box-shadow: var(--shadow-float);
}

.connection-row {
  display: flex;
  min-height: 72px;
  padding: 13px 15px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.connection-row > div {
  display: grid;
}

.connection-row div span {
  color: var(--color-ink-muted);
  font-size: 12px;
}

.status-chip {
  flex-shrink: 0;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  background: var(--tutorial-blue-soft);
  color: var(--color-brand-deep);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
}

.status-chip-green {
  background: var(--tutorial-green-soft);
  color: var(--color-green-ink);
}

.verify-grid {
  display: grid;
  margin-block: 36px;
  gap: 14px;
}

.verify-card {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  padding: 22px;
  align-items: start;
  gap: 18px;
  border-radius: var(--radius-large);
  background: var(--color-panel);
}

.verify-icon {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border-radius: var(--radius-medium);
  background: var(--tutorial-blue-soft);
  color: var(--color-brand-deep);
  font-family: var(--font-mono);
  font-weight: 850;
}

.verify-icon-green {
  background: var(--tutorial-green-soft);
  color: var(--color-green-ink);
}

.verify-icon-orange {
  background: var(--tutorial-orange-soft);
  color: var(--color-orange-ink);
}

.verify-card h3 {
  margin-bottom: 7px;
  font-size: 20px;
}

.verify-card p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.after-faq {
  margin-top: 34px;
}

@media (max-width: 960px) {
  .tutorial-hero-grid,
  .tutorial-feature,
  .connection-scene {
    grid-template-columns: 1fr;
  }

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

  .tutorial-map {
    max-width: 680px;
  }

  .ready-strip {
    grid-template-columns: 1fr;
  }

  .ready-strip > div {
    min-height: 94px;
  }
}

@media (max-width: 768px) {
  .tutorial-hero {
    padding-top: 54px;
    padding-bottom: 76px;
  }

  .tutorial-hero-grid {
    gap: 42px;
  }

  .tutorial-lead {
    font-size: 17px;
  }

  .tutorial-band-inner {
    justify-content: flex-start;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .tutorial-band-inner::-webkit-scrollbar {
    display: none;
  }

  .step-heading {
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 16px;
  }

  .step-index {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-medium);
    font-size: 12px;
  }

  .tutorial-section {
    scroll-margin-top: 68px;
  }
}

@media (max-width: 640px) {
  .tutorial-hero::before {
    right: -380px;
  }

  .tutorial-hero::after {
    left: -390px;
  }

  .tutorial-map-list {
    padding: 14px;
  }

  .tutorial-map-list li {
    padding: 13px;
  }

  .tutorial-map-number {
    width: 40px;
    height: 40px;
  }

  .tutorial-content {
    padding-top: 28px;
  }

  .tutorial-content .toc {
    top: 8px;
  }

  .step-heading {
    grid-template-columns: 1fr;
  }

  .step-index {
    width: auto;
    min-width: 54px;
    max-width: max-content;
    height: 38px;
    padding-inline: 14px;
    border-radius: var(--radius-pill);
  }

  .tutorial-feature-visual {
    min-height: 230px;
    padding: 16px;
  }

  .connection-scene {
    padding: 24px 18px;
  }

  .connection-controls {
    padding: 10px;
  }

  .connection-row {
    min-height: 68px;
    padding: 12px;
  }

  .verify-card {
    grid-template-columns: 44px minmax(0, 1fr);
    padding: 18px;
    gap: 14px;
  }

  .verify-icon {
    width: 44px;
    height: 44px;
  }

  .next-step-link {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 380px) {
  .tutorial-map-head {
    padding-inline: 16px;
  }

  .tutorial-map-list div span {
    font-size: 12px;
  }

  .connection-row {
    align-items: flex-start;
  }
}