feat: copy kanban card to clipboard with Opt+K

README.md

@@ -74,7 +74,7 @@ notebook path/to/file.md
 
 - **Block editor** — 15 block types: paragraphs, headings (3 levels), bullet lists, numbered lists, checklists, code blocks, tables, quotes, definitions, callouts, dividers, embeds, and kanban boards. Press **/** to switch types.
 - **Tables** — Pipe-delimited GFM tables with per-column widths. Alt+R/C to add rows/columns, Alt+Shift+Backspace/Alt+Shift+D to delete. Press Enter on an empty row to exit the table and drop the row.
-- **Kanban boards** — Visual boards with priority cards. Arrows navigate, Shift+arrows move cards, **n** new card, **p** cycle priority, **s** toggle auto-sort. Round-trips as a `kanban` fenced block.
+- **Kanban boards** — Visual boards with priority cards. Arrows navigate, Shift+arrows move cards, **n** new card, **Opt+K** copy card, **p** cycle priority, **s** toggle auto-sort. Round-trips as a `kanban` fenced block.
 - **Callouts** — Five admonition variants (Note, Tip, Important, Warning, Caution). Ctrl+T to cycle.
 - **Definitions** — Term/definition pairs. Press **:** to search and jump to definitions.
 - **Embeds** — Reference other notes inline with `![[notebook/note]]`. Click in view mode to expand.

internal/editor/kanban.go

@@ -7,6 +7,7 @@ import (
 	tea "charm.land/bubbletea/v2"
 	"charm.land/lipgloss/v2"
 	"github.com/oobagi/notebook-cli/internal/block"
+	"github.com/oobagi/notebook-cli/internal/clipboard"
 	"github.com/oobagi/notebook-cli/internal/format"
 	"github.com/oobagi/notebook-cli/internal/theme"
 )
@@ -941,6 +942,28 @@ func (m *Model) handleKanbanKey(msg tea.KeyPressMsg) (handled bool, cmd tea.Cmd)
 			m.kanban.sortByPriority()
 		}
 		return true, nil
+	case "alt+k":
+		// Copy selected card text to clipboard. Mirrors block-level Opt+K
+		// but scopes to the focused card instead of the whole board.
+		c := m.kanban.selectedCard()
+		if c == nil {
+			m.status = "No card to copy"
+			m.statusStyle = statusWarning
+			return true, m.scheduleStatusDismiss()
+		}
+		if c.Text == "" {
+			m.status = "Card is empty"
+			m.statusStyle = statusWarning
+			return true, m.scheduleStatusDismiss()
+		}
+		if err := clipboard.Copy(c.Text); err != nil {
+			m.status = "Could not copy: " + err.Error()
+			m.statusStyle = statusError
+		} else {
+			m.status = "Card copied to clipboard"
+			m.statusStyle = statusSuccess
+		}
+		return true, m.scheduleStatusDismiss()
 	case "backspace", "delete":
 		if m.kanban.selectedCard() != nil {
 			m.pushUndo()

internal/editor/kanban_test.go

@@ -190,6 +190,40 @@ func TestKanbanAddCard(t *testing.T) {
 	}
 }
 
+func TestKanbanCopyCardToClipboard(t *testing.T) {
+	m := newKanbanEditor(t)
+	c := m.kanban.selectedCard()
+	if c == nil || c.Text == "" {
+		t.Fatalf("expected a non-empty card selected, got %+v", c)
+	}
+	out, cmd := m.Update(tea.KeyPressMsg{Code: 'k', Mod: tea.ModAlt})
+	m = out.(Model)
+	if cmd == nil {
+		t.Errorf("expected status-dismiss cmd, got nil")
+	}
+	// Copy succeeds via OSC52 even when pbcopy/xclip aren't available, so
+	// the status should be the success message regardless of CI host.
+	if m.status != "Card copied to clipboard" {
+		t.Errorf("status = %q, want %q", m.status, "Card copied to clipboard")
+	}
+}
+
+func TestKanbanCopyCardOnEmptyColumn(t *testing.T) {
+	// Move into "Doing" then delete its only card so the column is empty
+	// and no card is selected — alt+k should report nothing to copy.
+	m := newKanbanEditor(t)
+	m = pressKey(m, "right")
+	m = pressKey(m, "backspace")
+	if m.kanban.selectedCard() != nil {
+		t.Fatalf("expected no card selected after deleting last card")
+	}
+	out, _ := m.Update(tea.KeyPressMsg{Code: 'k', Mod: tea.ModAlt})
+	m = out.(Model)
+	if m.status != "No card to copy" {
+		t.Errorf("status = %q, want %q", m.status, "No card to copy")
+	}
+}
+
 func TestKanbanDeleteCard(t *testing.T) {
 	m := newKanbanEditor(t)
 	before := len(m.kanban.cols[0].Cards)