Fix kanban column height calculation for quickview

internal/ui/app.go

@@ -1524,24 +1524,26 @@ func (m *AppModel) viewDashboard() string {
 		promptPreviewHeight = lipgloss.Height(promptPreview)
 	}
 
-	// Calculate heights dynamically
-	headerHeight := len(headerParts)
+	// Build the header first so we can measure its actual rendered height
+	header := ""
+	headerHeight := 0
+	if len(headerParts) > 0 {
+		header = lipgloss.JoinVertical(lipgloss.Left, headerParts...)
+		headerHeight = lipgloss.Height(header)
+	}
 
 	// Render help to measure its actual height
 	helpView := m.renderHelp()
 	helpHeight := lipgloss.Height(helpView)
 
 	kanbanHeight := m.height - headerHeight - filterBarHeight - helpHeight - promptPreviewHeight
+	if kanbanHeight < 10 {
+		kanbanHeight = 10
+	}
 
 	// Update kanban size
 	m.kanban.SetSize(m.width, kanbanHeight)
 
-	// Build the view
-	header := ""
-	if len(headerParts) > 0 {
-		header = lipgloss.JoinVertical(lipgloss.Left, headerParts...)
-	}
-
 	var contentParts []string
 	if header != "" {
 		contentParts = append(contentParts, header)

internal/ui/kanban.go

@@ -351,8 +351,14 @@ func splitPinnedTasks(tasks []*db.Task) (pinned []*db.Task, unpinned []*db.Task)
 
 // SetSize updates the board dimensions.
 func (k *KanbanBoard) SetSize(width, height int) {
+	heightChanged := k.height != height
 	k.width = width
 	k.height = height
+	// When height changes (e.g. quickview appearing/disappearing),
+	// recalculate scroll offsets so the selected task stays visible
+	if heightChanged {
+		k.ensureSelectedVisible()
+	}
 }
 
 // MoveLeft moves selection to the left column, skipping collapsed columns.
@@ -1468,8 +1474,8 @@ func (k *KanbanBoard) handleClickDesktop(x, y int) *db.Task {
 
 	// Calculate which task was clicked
 	col := k.columns[colIdx]
-	colHeight := k.height
-	maxTasks := (colHeight - 3) / taskCardHeight // -3 for header bar and minimal padding
+	colHeight := k.height - 2 // -2 for column borders (top + bottom)
+	maxTasks := (colHeight - 3) / taskCardHeight // -3 for header bar and scroll indicators
 	if maxTasks < 1 {
 		maxTasks = 1
 	}