.kanban-board {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  align-items: flex-start;
}

.kanban-col {
  flex: 0 0 280px;
  min-width: 260px;
  background: var(--gray-50);
  border-radius: 10px;
  border: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 260px);
}

.kanban-col-header {
  padding: 0.75rem 1rem;
  border-top: 3px solid var(--gray-200);
  border-radius: 10px 10px 0 0;
  background: var(--color-surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--gray-700);
  flex-shrink: 0;
}

.kanban-col-count {
  background: var(--gray-200);
  color: var(--gray-500);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 0.1em 0.5em;
  min-width: 1.4em;
  text-align: center;
}

.kanban-cards {
  padding: 0.5rem;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.kanban-card {
  background: var(--color-surface);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 0.75rem;
  display: block;
  transition: box-shadow 0.15s, transform 0.1s;
  color: var(--gray-700);
}

.kanban-card:hover {
  box-shadow: 0 4px 14px rgba(0,0,0,.1);
  transform: translateY(-1px);
  border-color: var(--brand-blue-light);
}

.kanban-empty {
  font-size: 0.8rem;
  color: var(--gray-400);
  text-align: center;
  padding: 1.5rem 0.5rem;
}