.tutorial-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background:
    linear-gradient(135deg, var(--color-bg), var(--color-panel-raised));
  padding-top: clamp(64px, 9vw, 112px);
  padding-bottom: clamp(58px, 8vw, 96px);
}

.tutorial-hero::before {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, var(--color-grid) 0 1px, transparent 1px 30px),
    repeating-linear-gradient(90deg, var(--color-grid) 0 1px, transparent 1px 30px);
  content: "";
  mask-image: linear-gradient(to right, transparent, var(--color-text), transparent);
  pointer-events: none;
}

.tutorial-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr);
  align-items: center;
  gap: clamp(36px, 7vw, 88px);
}

.tutorial-hero-copy {
  min-width: 0;
}

.tutorial-hero h1 {
  margin-top: 18px;
  margin-bottom: 18px;
}

.tutorial-hero .lead {
  max-width: 680px;
  margin-bottom: 0;
}

.tutorial-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 0;
  margin-top: 22px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.tutorial-facts span {
  display: inline-flex;
  align-items: center;
}

.tutorial-facts span + span::before {
  margin-inline: 10px;
  color: var(--color-border);
  content: "•";
}

.tutorial-route {
  min-width: 0;
}

.route-board {
  position: relative;
  min-height: 330px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  box-shadow: 0 2px 6px var(--shadow-window-a), 0 30px 60px -28px var(--shadow-window-b);
}

.route-board-head {
  display: flex;
  min-height: 42px;
  align-items: center;
  gap: 7px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel-raised);
  padding-inline: 16px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.route-board-head span:last-child {
  margin-left: 5px;
}

.route-board-dot {
  width: 9px;
  height: 9px;
  flex: 0 0 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
}

.route-line {
  position: absolute;
  top: 64px;
  right: 18px;
  left: 18px;
  width: calc(100% - 36px);
  color: var(--color-accent);
}

.route-label {
  position: absolute;
  display: inline-flex;
  min-height: 31px;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel-raised);
  padding-inline: 12px;
  color: var(--color-accent-dark);
  font-size: 12px;
  font-weight: 800;
  box-shadow: 0 12px 24px -18px var(--shadow-card);
}

.route-label-account {
  top: 82px;
  left: 22px;
}

.route-label-plan {
  top: 143px;
  left: 30%;
}

.route-label-client {
  top: 82px;
  right: 27%;
}

.route-label-connect {
  right: 20px;
  bottom: 38px;
}

.tutorial-guide {
  position: relative;
}

.tutorial-notice {
  margin-top: 34px;
  margin-bottom: 0;
}

.tutorial-step {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: clamp(22px, 4vw, 54px);
  padding-top: clamp(64px, 8vw, 96px);
}

.tutorial-step + .tutorial-step {
  border-top: 1px solid var(--color-border);
}

.step-marker {
  position: sticky;
  top: calc(var(--header-height) + 86px);
  display: inline-flex;
  width: 68px;
  height: 68px;
  align-items: center;
  justify-content: center;
  align-self: start;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-raised);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 850;
  box-shadow: 0 14px 30px -24px var(--shadow-card);
}

.step-content {
  width: 100%;
  max-width: var(--reading-width);
  min-width: 0;
}

.step-content h2 {
  margin-bottom: 22px;
}

.step-content p {
  color: var(--color-text-muted);
}

.step-content p a {
  font-weight: 700;
}

.step-content pre {
  margin: 24px 0;
}

.step-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.platform-instructions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 30px;
}

.platform-instruction {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  padding: 24px;
}

.platform-instruction h3 {
  position: relative;
  padding-left: 19px;
  font-size: 21px;
}

.platform-instruction h3::before {
  position: absolute;
  top: 0.4em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.platform-instruction p {
  font-size: 14px;
}

.platform-instruction p:last-child {
  margin-bottom: 0;
}

.tutorial-finish {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: var(--section-space);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, var(--color-panel), var(--color-panel-raised));
  padding: clamp(26px, 5vw, 48px);
  box-shadow: 0 22px 46px -36px var(--shadow-card);
}

.tutorial-finish h2 {
  margin-bottom: 10px;
  font-size: clamp(29px, 4vw, 42px);
}

.tutorial-finish p:last-child {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

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

  .tutorial-route {
    width: 100%;
    max-width: 680px;
    margin-inline: auto;
  }

  .platform-instructions {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .tutorial-hero {
    padding-top: 54px;
    padding-bottom: 58px;
  }

  .tutorial-hero-actions {
    align-items: stretch;
    flex-direction: column;
    max-width: 340px;
  }

  .tutorial-route {
    display: none;
  }

  .tutorial-step {
    grid-template-columns: 1fr;
    gap: 18px;
    padding-top: 64px;
  }

  .step-marker {
    position: static;
    width: auto;
    height: 34px;
    justify-self: start;
    border-radius: var(--radius-pill);
    padding-inline: 13px;
    font-size: 12px;
  }

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

@media (max-width: 520px) {
  .tutorial-facts {
    display: grid;
    gap: 5px;
  }

  .tutorial-facts span + span::before {
    display: none;
  }

  .platform-instruction {
    padding: 20px;
  }

  .tutorial-finish .btn {
    width: 100%;
  }
}