.wiki-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg) var(--space-2xl);
  animation: wiki-fade-in 520ms var(--ease-out) both;
}

.wiki-layout {
  display: grid;
  grid-template-columns: minmax(180px, 240px) minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

.wiki-sidebar {
  position: sticky;
  top: calc(var(--topbar-height) + var(--space-lg));
  display: grid;
  gap: 6px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.055);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.wiki-sidebar a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 7px 9px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.wiki-sidebar a:hover,
.wiki-sidebar a.active {
  color: var(--accent);
  background: rgba(110, 231, 183, 0.07);
  transform: translateX(2px);
}

.wiki-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  margin-bottom: var(--space-lg);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.wiki-back:hover {
  color: var(--accent);
  transform: translateX(-3px);
}

.wiki-back svg {
  width: 16px;
  height: 16px;
}

.wiki-kicker {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.wiki-title {
  max-width: 820px;
  font-size: clamp(2.2rem, 6vw, 4.4rem);
  line-height: 1;
  letter-spacing: 0;
  margin-bottom: var(--space-md);
}

.wiki-lede {
  max-width: 760px;
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.75;
  margin: 0 0 var(--space-xl);
}

.wiki-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.wiki-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
}

.wiki-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.wiki-card,
.wiki-section,
.qa-item,
.step-panel {
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.055);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: transform var(--transition-med), border-color var(--transition-med), background var(--transition-med), box-shadow var(--transition-med);
}

.wiki-card:hover,
.qa-item:hover,
.step-panel:hover {
  background: rgba(26, 36, 46, 0.92);
  border-color: rgba(110, 231, 183, 0.16);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.2);
  transform: translateY(-4px);
}

.wiki-card h2,
.wiki-section h2,
.qa-item h2,
.step-panel h2 {
  font-size: 1.05rem;
  margin-bottom: var(--space-xs);
}

.wiki-card p,
.wiki-section p,
.qa-item p,
.step-panel p,
.wiki-section li {
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.7;
}

.wiki-card p,
.qa-item p,
.step-panel p {
  margin: 0;
}

.wiki-card a {
  color: inherit;
  text-decoration: none;
}

.wiki-section {
  margin-bottom: var(--space-md);
}

.wiki-section ul,
.wiki-section ol {
  margin: var(--space-sm) 0 0;
  padding-left: 1.2rem;
}

.wiki-section code,
.qa-item code {
  color: var(--accent);
  background: rgba(110, 231, 183, 0.08);
  border-radius: 4px;
  padding: 1px 5px;
}

.wiki-note {
  background: rgba(110, 231, 183, 0.07);
  border: 1px solid rgba(110, 231, 183, 0.15);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: var(--space-md);
}

.wiki-note strong {
  color: var(--accent);
}

.wiki-image {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  margin-top: var(--space-md);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #04201a;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.wiki-muted-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.wiki-muted-link:hover {
  color: var(--text);
  text-decoration: underline;
}

.wiki-card,
.wiki-section,
.qa-item,
.step-panel {
  animation: wiki-item-in 700ms var(--ease-out) both;
}

.wiki-grid > :nth-child(2) { animation-delay: 60ms; }
.wiki-grid > :nth-child(3) { animation-delay: 120ms; }
.wiki-grid > :nth-child(4) { animation-delay: 180ms; }
.wiki-grid > :nth-child(5) { animation-delay: 240ms; }
.wiki-grid > :nth-child(6) { animation-delay: 300ms; }
.wiki-grid > :nth-child(7) { animation-delay: 360ms; }
.wiki-grid > :nth-child(8) { animation-delay: 420ms; }
.wiki-grid > :nth-child(9) { animation-delay: 480ms; }

@keyframes wiki-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes wiki-item-in {
  from {
    filter: blur(8px);
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    filter: blur(0);
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  .wiki-layout {
    grid-template-columns: 1fr;
  }

  .wiki-sidebar {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .wiki-grid,
  .wiki-grid.two {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .wiki-sidebar {
    grid-template-columns: 1fr;
  }

  .wiki-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .wiki-shell,
  .wiki-card,
  .wiki-section,
  .qa-item,
  .step-panel,
  .wiki-sidebar a,
  .wiki-back {
    animation: none !important;
    transition: none !important;
  }
}