/**
 * idf-kanban v0.1.0 — Board-Layout (Spalten + Karten)
 *
 * Nur Token-Farben (var(--…)). Drag-Optik (Ghost/Chosen/Drag) kommt aus
 * idf-sortable.css (Auto-Chain $useKanban → $useSortableJS).
 */

.idf-kanban {
  display: grid;
  grid-template-columns: repeat(var(--idf-kanban-cols, 4), minmax(220px, 1fr));
  gap: 14px;
  align-items: start;
}

.idf-kanban-col {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  min-height: 220px;
}

.idf-kanban-col-head {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  font-weight: 700;
  color: var(--mid);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.idf-kanban-col-head i { opacity: 0.6; font-size: 13px; }

.idf-kanban-col-count {
  margin-left: auto;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--mid);
  line-height: 18px;
}

/* Body = Drop-Zone. min-height, damit auch leere Spalten Drops annehmen. */
.idf-kanban-col-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px;
  min-height: 120px;
}

.idf-kanban-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  cursor: grab;
  transition: box-shadow 0.15s, border-color 0.15s;
}
.idf-kanban-card:hover {
  border-color: var(--soft);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.idf-kanban-card:active { cursor: grabbing; }

/* Leer-Hinweis: nur sichtbar, wenn die Spalte keine Karten hat. */
.idf-kanban-empty {
  display: none;
  font-size: 12px;
  font-weight: 300;
  color: var(--soft);
  text-align: center;
  padding: 14px 6px;
}
.idf-kanban-col-body .idf-kanban-empty:first-child { display: block; }

@media (max-width: 1100px) {
  .idf-kanban {
    grid-template-columns: 1fr;
  }
}