.tutorial-hero {
  position: relative;
  overflow: clip;
  border-bottom: 1px solid var(--color-line);
  background: linear-gradient(145deg, var(--color-canvas), var(--color-panel));
}

.tutorial-hero::before {
  position: absolute;
  top: 8%;
  right: 2%;
  width: min(48vw, 640px);
  aspect-ratio: 1;
  border-radius: var(--radius-pill);
  background: radial-gradient(closest-side, var(--color-glow), transparent);
  content: "";
  pointer-events: none;
}

.tutorial-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  min-height: 670px;
  align-items: center;
  gap: clamp(38px, 7vw, 92px);
  padding-top: 72px;
  padding-bottom: 72px;
}

.tutorial-hero-copy {
  position: relative;
  z-index: 2;
}

.tutorial-hero h1 {
  max-width: 650px;
  margin-top: 22px;
  margin-bottom: 22px;
}

.tutorial-intro {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.8;
}

.tutorial-actions {
  margin-top: 30px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 25px;
}

.tutorial-facts span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.tutorial-index-card {
  position: relative;
  z-index: 1;
  width: min(100%, 480px);
  justify-self: end;
  padding: 18px;
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-lg);
  background: var(--color-canvas);
  box-shadow: var(--shadow-device);
  transform: rotate(0.7deg);
}

.tutorial-index-card::before {
  position: absolute;
  z-index: -1;
  inset: 12px -12px -12px 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-panel-strong);
  content: "";
}

.tutorial-card-head,
.tutorial-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.tutorial-card-head {
  padding: 4px 5px 15px;
  border-bottom: 1px solid var(--color-line);
}

.tutorial-card-list {
  display: grid;
  gap: 8px;
  margin: 18px 0;
  padding: 0;
  list-style: none;
}

.tutorial-card-list li {
  display: grid;
  grid-template-columns: minmax(100px, 0.7fr) minmax(0, 1.3fr);
  align-items: center;
  gap: 16px;
  min-height: 57px;
  padding: 10px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}

.tutorial-card-list li:nth-child(3) {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.tutorial-card-list span {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  overflow-wrap: anywhere;
}

.tutorial-card-list strong {
  color: var(--color-ink);
  font-size: 14px;
}

.tutorial-card-foot {
  justify-content: flex-start;
  padding: 15px 5px 4px;
  border-top: 1px solid var(--color-line);
  color: var(--color-accent);
}

.tutorial-nav-section {
  padding-top: 28px;
  padding-bottom: 0;
}

.tutorial-main-section {
  padding-top: 42px;
}

.tutorial-flow {
  position: relative;
  display: grid;
  gap: 28px;
  margin-top: 30px;
}

.tutorial-flow::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 28px;
  width: 1px;
  background: var(--color-line);
  content: "";
}

.tutorial-step,
.tutorial-platform {
  position: relative;
  padding: clamp(24px, 5vw, 48px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-canvas);
  box-shadow: var(--shadow-panel);
}

.tutorial-step {
  border-top: 3px solid var(--color-ink);
}

.tutorial-step:nth-of-type(3) {
  border-top-color: var(--color-accent);
}

.tutorial-step-head {
  position: relative;
  margin-bottom: 25px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--color-line);
}

.tutorial-step-head::before {
  position: absolute;
  top: 5px;
  left: calc(clamp(24px, 5vw, 48px) * -1 - 6px);
  width: 11px;
  height: 11px;
  border: 2px solid var(--color-canvas);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-line);
  content: "";
}

.tutorial-step-head h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 44px);
}

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

.tutorial-step-body p,
.tutorial-platform p {
  color: var(--color-muted);
  line-height: 1.9;
}

.tutorial-step-body p + p,
.tutorial-platform p + p {
  margin-top: 18px;
}

.tutorial-inline-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 28px;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.tutorial-inline-action p {
  margin-bottom: 0;
}

.tutorial-inline-action .btn {
  flex: 0 0 auto;
}

.tutorial-platform {
  margin-left: clamp(28px, 5vw, 58px);
  background: var(--color-panel);
}

.tutorial-platform-head {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 22px;
}

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

.tutorial-platform-mark {
  display: grid;
  width: 52px;
  height: 52px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  color: var(--color-ink);
}

.tutorial-platform-mark svg {
  width: 29px;
  height: 29px;
}

.tutorial-doc-link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 30px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.tutorial-doc-link h3 {
  margin-bottom: 8px;
}

.tutorial-doc-link p {
  margin-bottom: 0;
}

.tutorial-finish {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 32px;
  margin-top: 34px;
  padding: clamp(28px, 5vw, 48px);
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-lg);
  background: var(--color-ink);
  box-shadow: var(--shadow-device);
}

.tutorial-finish h2 {
  margin-bottom: 12px;
  color: var(--color-canvas);
}

.tutorial-finish p {
  max-width: 680px;
  color: var(--color-panel-strong);
}

.tutorial-finish .eyebrow {
  color: var(--color-panel-strong);
}

.tutorial-finish .btn-secondary {
  border-color: var(--color-canvas);
  background: var(--color-canvas);
  color: var(--color-ink);
}

.tutorial-finish .btn-secondary:hover {
  background: var(--color-panel-strong);
}

@media (max-width: 980px) {
  .tutorial-hero-grid {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .tutorial-index-card {
    width: min(100%, 620px);
    justify-self: center;
  }
}

@media (max-width: 768px) {
  .tutorial-hero-grid {
    gap: 46px;
    padding-top: 56px;
    padding-bottom: 62px;
  }

  .tutorial-index-card {
    transform: none;
  }

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

  .tutorial-step-head::before {
    display: none;
  }

  .tutorial-platform {
    margin-left: 0;
  }

  .tutorial-inline-action,
  .tutorial-doc-link,
  .tutorial-finish {
    grid-template-columns: 1fr;
  }

  .tutorial-inline-action {
    align-items: stretch;
    flex-direction: column;
  }

  .tutorial-inline-action .btn,
  .tutorial-doc-link .btn,
  .tutorial-finish .btn {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .tutorial-hero::before {
    top: 28%;
    right: -35%;
    width: 120vw;
  }

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

  .tutorial-facts span {
    justify-content: center;
  }

  .tutorial-index-card {
    padding: 14px;
  }

  .tutorial-index-card::before {
    inset: 8px -8px -8px 8px;
  }

  .tutorial-card-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .tutorial-step,
  .tutorial-platform {
    padding: 21px;
  }

  .tutorial-platform-head {
    align-items: flex-start;
  }

  .tutorial-doc-link {
    padding: 21px;
  }
}