.content-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.content-article {
  width: 100%;
  max-width: 110ch;
  margin-inline: auto;
  line-height: 1.6;
}

.content-hero {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.content-hero h1 {
  margin: 0 0 var(--space-sm);
  color: var(--color-heading);
}

.content-hero p {
  margin: 0;
  color: var(--color-muted);
}

.content-article h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  color: var(--color-heading);
  scroll-margin-top: 120px;
}

.content-article h3 {
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
  color: var(--color-heading);
  scroll-margin-top: 120px;
}

.content-grid,
.grid-2,
.grid-auto {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.content-text-card,
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  padding: var(--space-md);
}

.content-text-card:hover,
.card:hover {
  border-color: var(--card-hover-border);
  box-shadow: var(--card-hover-shadow);
}

.code-block {
  margin-top: var(--space-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface-soft);
  border-radius: 12px;
  overflow: auto;
}

.code-header {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
  padding: 8px 12px;
}

.code-block pre {
  margin: 0;
  padding: 12px;
  overflow: auto;
}

.code-block code,
code {
  font-family: var(--font-mono);
}

.code-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  background: var(--color-surface);
  font-size: 0.75rem;
  font-weight: 700;
}

.alert {
  margin-top: var(--space-sm);
  border-radius: 12px;
  border: 1px solid var(--color-info-border);
  background: var(--color-info-soft);
  color: var(--color-text);
  padding: 12px;
}

.alert.success {
  border-color: var(--color-success-border);
  background: var(--color-success-soft);
}

.table-container {
  margin-top: var(--space-sm);
  overflow: auto;
}

.table-container table {
  width: 100%;
  border-collapse: collapse;
}

.table-container th,
.table-container td {
  border: 1px solid var(--color-border);
  padding: 10px;
  text-align: left;
}

.simple-list,
.shortcut-list,
.commit-types {
  margin: 0;
  padding-left: 1.2rem;
}

.mt-20 { margin-top: 20px; }

@media (min-width: 900px) {
  .content-grid,
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-auto {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}