.tutorial-hero {
  position: relative;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg);
}

.tutorial-hero-inner {
  display: grid;
  min-height: 590px;
  padding-top: 70px;
  padding-bottom: 82px;
  grid-template-columns: minmax(0, .92fr) minmax(430px, .78fr);
  align-items: center;
  gap: 74px;
}

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

.tutorial-intro h1 {
  max-width: 690px;
  margin-top: 22px;
  margin-bottom: 0;
}

.tutorial-lead {
  max-width: 640px;
  margin-top: 24px;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 19px;
  line-height: 1.8;
}

.tutorial-console {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  background: var(--color-bg);
  box-shadow: var(--shadow-window);
  transform: rotate(1deg);
}

.tutorial-console-bar {
  position: relative;
  display: flex;
  min-height: 46px;
  padding-inline: 17px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
}

.tutorial-console-bar .window-dots {
  position: absolute;
  left: 17px;
}

.workflow-list {
  display: grid;
  margin: 0;
  padding: 14px;
  gap: 7px;
  list-style: none;
}

.workflow-list li {
  display: grid;
  min-width: 0;
  min-height: 64px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
}

.workflow-list li.is-current {
  border-color: var(--color-line);
  background: var(--color-panel);
}

.workflow-mark {
  display: inline-flex;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: var(--radius-md);
  background: var(--color-code);
  color: var(--color-accent-strong);
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.workflow-list strong,
.workflow-list small {
  display: block;
}

.workflow-list strong {
  font-size: 14px;
}

.workflow-list small {
  margin-top: 2px;
  color: var(--color-muted);
  font-size: 11px;
}

.tutorial-console-foot {
  display: flex;
  min-height: 42px;
  padding-inline: 17px;
  border-top: 1px solid var(--color-line);
  background: var(--color-panel);
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--color-muted);
  font-size: 10px;
}

.tutorial-fact-strip {
  border-bottom: 1px solid var(--color-inverse-line);
}

.tutorial-facts {
  display: grid;
  padding-top: 32px;
  padding-bottom: 32px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tutorial-facts > div {
  min-width: 0;
  padding-inline: 28px;
  border-left: 1px solid var(--color-inverse-line);
}

.tutorial-facts > div:first-child {
  padding-left: 0;
  border-left: 0;
}

.tutorial-facts .fact-value {
  font-size: 23px;
}

.tutorial-reading {
  padding-top: 72px;
  padding-bottom: 108px;
}

.tutorial-step {
  position: relative;
  padding-top: 54px;
  padding-bottom: 62px;
  border-bottom: 1px solid var(--color-line);
}

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

.step-heading {
  margin-bottom: 25px;
}

.step-heading h2 {
  margin-top: 9px;
  margin-bottom: 0;
}

.step-label {
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .11em;
}

.step-actions {
  display: flex;
  margin-top: 30px;
  flex-wrap: wrap;
  gap: 12px;
}

.expected-result {
  display: grid;
  margin-top: 32px;
  padding: 20px 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 17px;
}

.expected-result p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.expected-label {
  display: inline-flex;
  min-height: 27px;
  padding: 3px 10px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-success);
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.platform-guide-grid {
  display: grid;
  margin-top: 30px;
  margin-bottom: 32px;
  gap: 18px;
}

.platform-guide {
  min-width: 0;
  padding: 26px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  box-shadow: 0 1px 0 var(--color-line);
}

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

.platform-guide-title {
  display: flex;
  margin-bottom: 18px;
  align-items: center;
  gap: 13px;
}

.platform-guide-title h3 {
  margin: 0;
  font-size: 21px;
}

.tutorial-help {
  padding-bottom: 0;
}

.tutorial-next-grid {
  display: grid;
  margin-top: 34px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
}

.tutorial-next-card {
  display: flex;
  min-width: 0;
  min-height: 190px;
  padding: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  flex-direction: column;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tutorial-next-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

.tutorial-next-card .mono {
  margin-bottom: 18px;
  color: var(--color-accent-strong);
  font-size: 10px;
  letter-spacing: .08em;
}

.tutorial-next-card strong {
  font-size: 18px;
}

.tutorial-next-card p {
  margin-top: 8px;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 14px;
}

@media (max-width: 1120px) {
  .tutorial-hero-inner {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .tutorial-console {
    max-width: 760px;
    transform: none;
  }
}

@media (max-width: 768px) {
  .tutorial-hero-inner {
    padding-top: 52px;
    padding-bottom: 62px;
  }

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

  .tutorial-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 28px;
  }

  .tutorial-facts > div {
    padding-inline: 18px;
  }

  .tutorial-facts > div:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }

  .tutorial-reading {
    padding-top: 54px;
    padding-bottom: 84px;
  }

  .tutorial-step {
    padding-top: 44px;
    padding-bottom: 50px;
  }

  .expected-result {
    grid-template-columns: 1fr;
  }

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

  .tutorial-next-card {
    min-height: 150px;
  }
}

@media (max-width: 520px) {
  .tutorial-console-bar {
    justify-content: flex-end;
  }

  .workflow-list li {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .workflow-list .badge {
    display: none;
  }

  .tutorial-console-foot {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }

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

  .tutorial-facts > div,
  .tutorial-facts > div:nth-child(3) {
    padding: 0 0 18px;
    border-bottom: 1px solid var(--color-inverse-line);
    border-left: 0;
  }

  .tutorial-facts > div:last-child {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .step-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .step-actions .btn {
    width: 100%;
  }

  .platform-guide {
    padding: 21px;
  }
}