.tutorial-hero {
  position: relative;
  overflow: hidden;
  overflow-x: clip;
  padding-top: 84px;
  padding-bottom: 88px;
  border-bottom: 1px solid var(--color-border-soft);
  isolation: isolate;
}

.tutorial-hero::before {
  position: absolute;
  z-index: -2;
  inset: 0;
  background-image:
    linear-gradient(30deg, transparent 48%, var(--color-grid) 49%, var(--color-grid) 51%, transparent 52%),
    linear-gradient(150deg, transparent 48%, var(--color-grid) 49%, var(--color-grid) 51%, transparent 52%);
  background-size: 46px 80px;
  content: "";
  mask-image: radial-gradient(ellipse at 72% 44%, var(--color-bg), transparent 74%);
}

.tutorial-hero::after {
  position: absolute;
  z-index: -1;
  top: -160px;
  right: -180px;
  width: 680px;
  height: 680px;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle, var(--color-accent-glow), transparent 68%);
  content: "";
  pointer-events: none;
}

.tutorial-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.75fr);
  align-items: center;
  gap: 72px;
}

.tutorial-hero-copy h1 {
  max-width: 760px;
  margin-top: 22px;
}

.tutorial-intro {
  max-width: 680px;
  margin-top: 24px;
  color: var(--color-text-muted);
  font-size: 18px;
}

.tutorial-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 28px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.tutorial-facts li {
  position: relative;
  padding-left: 15px;
}

.tutorial-facts li::before {
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.tutorial-route {
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-window);
}

.tutorial-route-head {
  display: flex;
  min-height: 58px;
  align-items: center;
  gap: 12px;
  padding-inline: 22px;
  border-bottom: 1px solid var(--color-border-soft);
  color: var(--color-text);
  font-weight: 700;
}

.tutorial-route-list {
  padding: 24px;
  list-style: none;
}

.tutorial-route-list li {
  position: relative;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
  min-height: 70px;
}

.tutorial-route-list li:not(:last-child)::before {
  position: absolute;
  top: 20px;
  bottom: 0;
  left: 7px;
  width: 1px;
  background: var(--color-border-strong);
  content: "";
}

.route-mark {
  position: relative;
  z-index: 1;
  width: 15px;
  height: 15px;
  margin-top: 5px;
  border: 3px solid var(--color-panel-raised);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.route-mark.is-finish {
  background: var(--color-success);
  box-shadow: 0 0 0 1px var(--color-success);
}

.tutorial-route-list div {
  display: grid;
  align-content: start;
  gap: 2px;
}

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

.tutorial-route-list span {
  color: var(--color-text-muted);
  font-size: 13px;
}

.tutorial-route-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 52px;
  padding-inline: 22px;
  border-top: 1px solid var(--color-border-soft);
  color: var(--color-text-dim);
  font-size: 12px;
}

.tutorial-document {
  padding-top: 64px;
  padding-bottom: 112px;
}

.tutorial-step {
  display: grid;
  grid-template-columns: 116px minmax(0, 820px);
  justify-content: center;
  gap: 36px;
  padding-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--color-border-soft);
}

.tutorial-step-last {
  border-bottom: 0;
}

.step-aside {
  display: flex;
  align-items: center;
  flex-direction: column;
  min-height: 100%;
}

.step-label {
  display: inline-flex;
  min-width: 68px;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.step-line {
  width: 1px;
  flex: 1;
  margin-top: 18px;
  background: linear-gradient(var(--color-border-strong), transparent);
}

.step-content {
  min-width: 0;
}

.step-content h2 {
  font-size: clamp(32px, 4vw, 46px);
}

.step-lead {
  margin-top: 18px;
  color: var(--color-text);
  font-size: 19px;
  line-height: 1.75;
}

.step-content > p:not(.section-kicker):not(.step-lead) {
  margin-top: 22px;
  color: var(--color-text-muted);
}

.step-content a:not(.btn) {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.step-content .callout {
  margin-top: 26px;
}

.step-content pre {
  margin-top: 20px;
}

.step-action,
.client-download-action {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  margin-top: 28px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  background: var(--color-panel);
}

.step-action p,
.client-download-action p {
  margin-top: 4px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.client-guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.client-guide {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  background: var(--color-panel);
  box-shadow: var(--shadow-tile);
}

.client-guide:last-child {
  grid-column: 1 / -1;
}

.client-guide-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.client-guide-head h3 {
  font-size: 22px;
}

.platform-glyph {
  display: inline-flex;
  width: 46px;
  height: 46px;
  flex: none;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-small);
  background: var(--color-panel-raised);
  color: var(--color-accent);
}

.platform-glyph svg {
  width: 28px;
  height: 28px;
}

.client-guide p {
  margin-top: 18px;
  color: var(--color-text-muted);
}

.completion-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 28px;
  margin-top: 34px;
  padding: 30px;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-window);
}

.completion-panel h3 {
  margin-top: 16px;
}

.completion-panel p {
  margin-top: 8px;
  color: var(--color-text-muted);
}

.completion-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

@media (max-width: 1040px) {
  .tutorial-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
    gap: 42px;
  }

  .tutorial-step {
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 26px;
  }
}

@media (max-width: 820px) {
  .tutorial-hero-grid {
    grid-template-columns: 1fr;
  }

  .tutorial-route {
    max-width: 620px;
  }

  .tutorial-step {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .step-aside {
    align-items: flex-start;
  }

  .step-line {
    display: none;
  }

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

  .client-guide:last-child {
    grid-column: auto;
  }

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

  .completion-links {
    align-items: flex-start;
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .tutorial-hero {
    padding-top: 52px;
    padding-bottom: 60px;
  }

  .tutorial-hero-grid {
    gap: 36px;
  }

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

  .tutorial-hero-actions .btn {
    width: 100%;
  }

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

  .tutorial-route-list {
    padding: 20px;
  }

  .tutorial-document {
    padding-top: 44px;
    padding-bottom: 76px;
  }

  .tutorial-step {
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .step-content h2 {
    font-size: 32px;
  }

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

  .step-action,
  .client-download-action {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .step-action .btn,
  .client-download-action .btn {
    width: 100%;
  }

  .client-guide {
    padding: 20px;
  }

  .completion-panel {
    padding: 22px;
  }

  .completion-links {
    align-items: stretch;
    flex-direction: column;
  }

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