/* Article modules & structures in Settings */

.article-section {
  display: grid;
  gap: var(--space-md);
}

.article-section__header {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

/* ── Module cards grid ── */

.article-modules-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fill, minmax(var(--card-min), 1fr));
}

.article-module-card {
  align-content: start;
  background: var(--bg-card-soft);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  display: grid;
  gap: var(--space-xs);
  min-height: 4.5rem;
  padding: var(--space-sm) var(--space-md);
  padding-right: var(--space-xl);
  position: relative;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.article-module-card:hover {
  border-color: var(--vibrance-hover);
}

.article-module-card__name {
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.3;
  margin: 0;
  word-break: break-word;
}

.article-module-card__constraints {
  color: var(--text-muted);
  font-size: var(--text-xs);
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-module-card__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  position: absolute;
  right: var(--space-xs);
  top: var(--space-xs);
  transition: opacity var(--transition-fast);
}

.article-module-card__btn {
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  font-size: var(--text-xs);
  height: var(--control-h-xs);
  justify-content: center;
  padding: 0;
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
  width: var(--control-h-xs);
}

.article-module-card__btn:hover {
  background: var(--bg-hover);
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.article-module-card__btn--danger:hover {
  background: var(--bg-danger-soft);
  border-color: var(--vibrance-danger);
  color: var(--vibrance-danger);
}

/* Add-module card (dashed) */
.article-module-card--add {
  align-items: center;
  background: transparent;
  border-style: dashed;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  font-size: var(--text-sm);
  gap: var(--space-xs);
  justify-content: center;
  min-height: 4.5rem;
  padding: var(--space-sm) var(--space-md);
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.article-module-card--add:hover {
  background: var(--bg-hover);
  border-color: var(--vibrance-hover);
  color: var(--text-primary);
}

.article-module-card--add span {
  font-size: var(--text-lg);
  line-height: 1;
}

/* ── Structure items ── */

.article-structures-list {
  display: grid;
  gap: var(--space-sm);
}

.article-structure-item {
  background: var(--bg-card-soft);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-md);
}

.article-structure-item__header {
  align-items: center;
  display: flex;
  gap: var(--space-sm);
  justify-content: space-between;
}

.article-structure-item__title {
  font-size: var(--text-sm);
  font-weight: 600;
  margin: 0;
}

/* ── Sequence list ── */

.article-seq-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.article-seq-item {
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  cursor: grab;
  display: inline-flex;
  gap: var(--space-2xs);
  padding: var(--space-2xs) var(--space-xs) var(--space-2xs) var(--space-2xs);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.article-seq-item:active {
  cursor: grabbing;
}

.article-seq-item.is-dragging {
  opacity: 0.4;
}

.article-seq-item.is-drag-over {
  background: var(--bg-hover);
  border-color: var(--vibrance-hover);
}

.article-seq-item__handle {
  color: var(--text-muted);
  cursor: grab;
  flex-shrink: 0;
  font-size: var(--text-2xs);
  line-height: 1;
  user-select: none;
}

.article-seq-item__index {
  align-items: center;
  background: var(--bg-accent-soft);
  border-radius: 50%;
  color: var(--text-primary);
  display: inline-flex;
  flex-shrink: 0;
  font-size: var(--text-2xs);
  font-weight: 700;
  height: 1.25rem;
  justify-content: center;
  line-height: 1;
  width: 1.25rem;
}

.article-seq-item__name {
  font-size: var(--text-xs);
  font-weight: 500;
  white-space: nowrap;
}

.article-seq-item__remove {
  align-items: center;
  background: none;
  border: none;
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  flex-shrink: 0;
  font-size: var(--text-xs);
  height: 1.125rem;
  justify-content: center;
  padding: 0;
  transition: color var(--transition-fast), background var(--transition-fast);
  width: 1.125rem;
}

.article-seq-item__remove:hover {
  background: var(--bg-danger-soft);
  color: var(--vibrance-danger);
}

/* Sequence empty state */
.article-seq-empty {
  color: var(--text-muted);
  font-size: var(--text-xs);
  font-style: italic;
  margin: 0;
}

/* ── Add module to sequence ── */

.article-structure-item__add {
  align-items: center;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  gap: var(--space-xs);
  padding-top: var(--space-sm);
}

/* ── Empty states ── */

.article-structures-empty {
  color: var(--text-muted);
  font-size: var(--text-sm);
  font-style: italic;
  padding: var(--space-sm) 0;
  text-align: center;
}

/* ── Responsive ── */

@media (max-width: 859px) {
  .article-modules-grid {
    grid-template-columns: repeat(auto-fill, minmax(9rem, 1fr));
  }
}