.tutorial-hero {
  position: relative;
  max-width: 100%;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  padding-top: 88px;
  padding-bottom: 88px;
}

.tutorial-hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(46% 72% at 82% 42%, var(--ice-spot), var(--color-transparent) 72%),
    linear-gradient(180deg, var(--atmosphere-top), var(--atmosphere-bottom));
  content: "";
}

.tutorial-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr);
  gap: 80px;
  align-items: center;
}

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

.tutorial-hero-copy h1 {
  margin-bottom: 24px;
}

.tutorial-hero-lead {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 18px;
}

.tutorial-actions {
  display: flex;
  margin-top: 30px;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
}

.tutorial-summary {
  position: relative;
  overflow: hidden;
  min-height: 390px;
  padding: 38px;
}

.tutorial-summary-icon {
  display: grid;
  width: 76px;
  height: 76px;
  margin-bottom: 38px;
  place-items: center;
  border: 1px solid var(--glass-edge);
  border-radius: var(--radius-medium);
  background: var(--accent-tint);
  color: var(--color-accent);
  box-shadow: 13px 13px 0 var(--accent-tint-soft);
}

.tutorial-summary-icon svg {
  width: 42px;
  height: 42px;
}

.tutorial-summary-list {
  position: relative;
  z-index: 1;
  display: grid;
  margin: 0;
  padding: 0;
  counter-reset: summary-step;
  list-style: none;
}

.tutorial-summary-list li {
  display: grid;
  min-height: 43px;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  font-weight: 650;
  counter-increment: summary-step;
}

.tutorial-summary-list li::before {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  content: counter(summary-step);
}

.tutorial-facts {
  position: relative;
  z-index: 1;
  display: flex;
  margin-top: 26px;
  flex-wrap: wrap;
  gap: 8px;
}

.tutorial-dotgrid {
  position: absolute;
  right: -24px;
  bottom: -24px;
  width: 180px;
  height: 130px;
  background-image: radial-gradient(circle, var(--color-accent) 0 3px, var(--color-transparent) 4px);
  background-size: 19px 19px;
  opacity: .12;
}

.tutorial-article {
  padding-bottom: var(--section-space);
}

.tutorial-article .toc-tabs {
  top: 0;
  margin-bottom: 0;
}

.guide-step {
  width: 100%;
  max-width: var(--reading);
  margin-inline: auto;
  border-bottom: 1px solid var(--color-border);
  padding-top: 80px;
  padding-bottom: 80px;
}

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

.step-label {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: .08em;
}

.guide-step h2 {
  margin-bottom: 26px;
}

.guide-step h3 {
  margin-bottom: 12px;
}

.guide-step p,
.guide-step li {
  color: var(--color-muted);
}

.guide-step p {
  line-height: 1.85;
}

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

.step-actions {
  display: flex;
  margin-top: 30px;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
}

.platform-notes {
  display: grid;
  margin-top: 38px;
  margin-bottom: 38px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.platform-note {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  padding: 26px;
  background: var(--color-panel);
  box-shadow: inset 0 0 0 1px var(--glass-edge), 0 14px 34px var(--accent-shadow);
}

.platform-note:last-child {
  grid-column: 1 / -1;
}

.platform-note-icon {
  display: grid;
  width: 50px;
  height: 50px;
  margin-bottom: 24px;
  place-items: center;
  border-radius: var(--radius-medium);
  background: var(--accent-tint-soft);
  color: var(--color-accent);
}

.platform-note-icon svg {
  width: 26px;
  height: 26px;
}

.platform-note h3 {
  font-size: 21px;
}

.platform-note p {
  font-size: 15px;
}

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

@media (max-width: 920px) {
  .tutorial-hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .tutorial-summary {
    max-width: 680px;
  }
}

@media (max-width: 768px) {
  .tutorial-hero {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .tutorial-hero-grid {
    gap: 40px;
  }

  .tutorial-summary {
    min-height: 0;
    padding: 30px;
  }

  .guide-step {
    padding-top: 64px;
    padding-bottom: 64px;
  }

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

  .platform-note:last-child {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .tutorial-hero {
    padding-top: 48px;
    padding-bottom: 48px;
  }

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

  .tutorial-actions,
  .step-actions {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
  }

  .tutorial-actions .btn-primary,
  .tutorial-actions .btn-quiet,
  .step-actions .btn-secondary,
  .step-actions .btn-quiet {
    width: 100%;
  }

  .tutorial-summary {
    padding: 24px 20px;
  }

  .tutorial-summary-icon {
    width: 66px;
    height: 66px;
  }

  .tutorial-dotgrid {
    display: none;
  }

  .guide-step {
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .platform-note {
    padding: 22px 18px;
  }
}