.tutorial-hero {
  position: relative;
  overflow-x: clip;
  padding-top: clamp(64px, 8vw, 108px);
  padding-bottom: clamp(72px, 9vw, 120px);
  background: var(--gradient-hero);
  color: var(--color-white-soft);
}

.tutorial-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 64px 64px;
  content: "";
  mask-image: linear-gradient(to right, transparent, black, transparent);
  pointer-events: none;
}

.tutorial-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.82fr);
  align-items: center;
  gap: clamp(40px, 7vw, 86px);
}

.tutorial-hero-copy {
  max-width: 680px;
}

.tutorial-hero h1 {
  margin: 18px 0;
  color: var(--color-panel);
}

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

.tutorial-hero .button-secondary {
  border-color: var(--color-white-border);
  background: var(--color-white-overlay-strong);
  color: var(--color-panel);
}

.tutorial-facts {
  margin-top: 26px;
}

.tutorial-facts .fact-pill,
.tutorial-facts .badge {
  border-color: var(--color-white-border);
  background: var(--color-white-overlay);
  color: var(--color-white-muted);
}

.tutorial-route-card {
  position: relative;
  padding: 25px;
  border: 1px solid var(--color-white-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--shadow-device), var(--shadow-device-edge);
  transform: rotate(0.7deg);
}

.tutorial-route-card::before {
  position: absolute;
  inset: 8px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-card-inner);
  content: "";
  pointer-events: none;
}

.tutorial-route-head,
.tutorial-route-foot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.tutorial-route-list {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 9px;
  margin: 22px 0;
}

.tutorial-route-row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 3px 12px;
  align-items: center;
  padding: 13px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 13px;
}

.tutorial-route-row.is-current {
  border-color: var(--color-success);
  background: var(--color-panel-soft);
}

.tutorial-route-row strong {
  grid-column: 2;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 650;
}

.tutorial-route-mark {
  display: grid;
  width: 34px;
  height: 34px;
  grid-row: 1 / 3;
  place-items: center;
  border-radius: var(--radius-logo);
  background: var(--gradient-logo);
  color: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 820;
}

.tutorial-route-row.is-current .tutorial-route-mark {
  background: var(--gradient-switch);
  color: var(--color-text);
}

.tutorial-content {
  background: var(--color-bg);
}

.guide-document {
  position: relative;
}

.tutorial-notice {
  margin-top: 34px;
  margin-bottom: 54px;
}

.tutorial-notice a,
.guide-step-body a:not(.button) {
  color: var(--color-accent-dark);
  font-weight: 760;
  text-decoration: underline;
  text-decoration-color: var(--color-border);
  text-underline-offset: 0.2em;
}

.guide-flow {
  position: relative;
  max-width: 980px;
  margin-inline: auto;
}

.guide-flow::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 70px;
  width: 1px;
  background: var(--color-border);
  content: "";
}

.guide-step {
  position: relative;
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 30px;
  padding-top: 24px;
  padding-bottom: 74px;
}

.guide-step:last-child {
  padding-bottom: 0;
}

.guide-step-rail {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 13px;
}

.guide-step-code {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  padding: 5px 11px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
}

.guide-step-dot {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  border: 4px solid var(--color-panel);
  border-radius: var(--radius-pill);
  background: var(--color-success);
  box-shadow: 0 0 0 2px var(--color-success), 0 0 18px var(--color-amber-glow);
}

.guide-step-body {
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.guide-step-heading {
  margin-bottom: 24px;
}

.guide-step-heading h2 {
  margin-top: 14px;
  margin-bottom: 0;
}

.guide-step-body > p {
  color: var(--color-text-muted);
}

.guide-step-body pre {
  margin-block: 24px;
}

.guide-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  margin-top: 30px;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card-inner);
  background: var(--color-panel-soft);
}

.guide-action strong {
  color: var(--color-text);
}

.guide-action p {
  margin: 4px 0 0;
  color: var(--color-text-muted);
  font-size: 13px;
}

.client-notes {
  display: grid;
  gap: 16px;
  margin-block: 28px;
}

.client-note {
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card-inner);
  background: var(--gradient-soft);
}

.client-note-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.client-note-head .platform-icon {
  width: 42px;
  height: 42px;
  flex-basis: 42px;
  font-family: var(--font-display);
  font-weight: 820;
}

.client-note h3 {
  margin: 0;
  font-size: 21px;
}

.client-note p {
  color: var(--color-text-muted);
}

.client-note p:last-child {
  margin-bottom: 0;
}

.check-sequence {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 30px;
}

.check-sequence-item {
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card-inner);
  background: var(--color-panel-soft);
}

.check-sequence-item span {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  background: var(--color-accent-dark);
  color: var(--color-panel);
  font-size: 11px;
  font-weight: 800;
}

.check-sequence-item p {
  margin: 12px 0 0;
  color: var(--color-text-muted);
  font-size: 12px;
}

.tutorial-rule-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.tutorial-rule {
  position: relative;
  min-height: 230px;
  padding: 28px;
  overflow: clip;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.tutorial-rule::after {
  position: absolute;
  right: -42px;
  bottom: -54px;
  width: 132px;
  height: 132px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  box-shadow: 0 0 0 24px var(--color-panel-soft);
  content: "";
  pointer-events: none;
}

.tutorial-rule > * {
  position: relative;
  z-index: 1;
}

.tutorial-rule-label {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 820;
}

.tutorial-rule h3 {
  margin-top: 18px;
}

.tutorial-rule p {
  max-width: 420px;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

@media (max-width: 980px) {
  .tutorial-hero-grid {
    grid-template-columns: 1fr;
  }

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

  .tutorial-route-card {
    width: min(720px, 100%);
    transform: none;
  }

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

@media (max-width: 768px) {
  .guide-flow::before {
    display: none;
  }

  .guide-step {
    grid-template-columns: 1fr;
    gap: 14px;
    padding-bottom: 56px;
  }

  .guide-step-rail {
    align-items: center;
    flex-direction: row;
  }

  .guide-step-body {
    border-radius: var(--radius-card-inner);
  }

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

  .guide-action .button {
    width: 100%;
  }

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

@media (max-width: 640px) {
  .tutorial-hero {
    padding-top: 52px;
    padding-bottom: 68px;
  }

  .tutorial-lead {
    font-size: 16px;
  }

  .tutorial-route-card {
    padding: 19px;
    border-radius: var(--radius-card-inner);
  }

  .tutorial-route-row {
    grid-template-columns: 32px minmax(0, 1fr);
  }

  .tutorial-route-mark {
    width: 32px;
    height: 32px;
  }

  .guide-step-body {
    padding: 21px;
  }

  .client-note {
    padding: 20px;
  }

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

  .tutorial-rule {
    min-height: 0;
    padding: 23px;
    border-radius: var(--radius-card-inner);
  }
}

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