body {
  font-family: Arial, sans-serif;
  background: #f4f5f7;
}

.kanban {
  display: flex;
  gap: 15px;
  padding: 20px;
}

.column {
  background: #ebecf0;
  border-radius: 6px;
  width: 250px;
  padding: 10px;
}

.column h3 {
  margin-top: 0;
  font-size: 16px;
}

.task-list {
  min-height: 50px;
}

.task {
  background: #fff;
  padding: 10px;
  margin-bottom: 8px;
  border-radius: 4px;
  cursor: move;
  box-shadow: 0 1px 2px rgba(0,0,0,.15);
}

html.dragging-board,
body.dragging-board,
html.dragging-board *,
body.dragging-board * {
  cursor: grabbing !important;
}

.board {
  background: #fff;
  border-radius: 6px;
  margin-bottom: 16px;
  overflow: hidden;
}

.board-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  background: #ebecf0;
  user-select: none;
  cursor: pointer;
}

.board-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.board-handle {
  cursor: grab;
  font-size: 18px;
}

.board-handle:active {
  cursor: grabbing;
}

.board-title {
  font-weight: 600;
}

.board-toggle {
  cursor: pointer;
  font-size: 14px;
  transition: transform 0.2s ease;
}

.board-toggle.collapsed {
  transform: rotate(-90deg);
}

.board-content.collapsed {
  display: none;
}