diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04db0aa..dcc3346 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -52,6 +52,30 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [0.7.0] — 2026-06-24
+
+### Added — `office` TUI
+
+- **Pane layout** — default **10% / 60% / 30%** split (nav / list / detail); drag vertical borders to resize; **Alt+1/2/3** still toggles panes.
+- **Filter mode** (`f`) — live filter on nav + list; right pane is the search query; **Esc** clears.
+- **Mail preview** — HTML bodies rendered colorized in the terminal (glamour); read-only scrollable document pane.
+- **Mail infinite scroll** — loads the next page automatically when the cursor nears the end of the list.
+- **Scrollbars** — vertical scrollbar on nav, list body, and detail preview when content exceeds the viewport.
+- **Calendar** — unified calendars + events leaf with **Type** column and date range (−7d … +30d).
+- **Tasks** — humanized status labels and relative deadlines in the list.
+- **Projects** — open/closed row colors; status toggle in the detail form; **Save** sends `responsibleId` and status via `UpdateProjectStatus`.
+
+### Changed — `office` TUI
+
+- Flattened navigation: **Projects**, **Tasks**, **By project**, **Calendar**, **CRM**, **Mail**, **Users** (removed Browse; Calendar no longer splits Calendars/Events).
+- Middle pane truncates overflowing cells with `…`; full text on the cursor or Space-selected row.
+- Detail form tab order: Title → Description → Status → Save → Delete.
+- **j/k** scrolls mail/file preview and read-only detail forms; mouse wheel scrolls detail when hovering the content area.
+
+### Added — library
+
+- `UpdateProjectStatus` — `PUT /api/2.0/project/{id}/status` for open/closed lifecycle.
+
 ## [0.5.1] — 2026-06-24
 
 ### Added — `office` TUI
diff --git a/cmd/office/fetch/calendar.go b/cmd/office/fetch/calendar.go
new file mode 100644
index 0000000..15e0e89
--- /dev/null
+++ b/cmd/office/fetch/calendar.go
@@ -0,0 +1,53 @@
+package fetch
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+// CalendarItemFields maps calendar API rows to list items.
+var CalendarItemFields = FieldMap{IDKey: "objectId", TitleKey: "title"}
+
+// CalendarItemsFromRows converts API calendar/event rows into list items.
+func CalendarItemsFromRows(rows []map[string]any) []model.Item {
+	out := make([]model.Item, 0, len(rows))
+	for _, row := range rows {
+		kind, typeLabel := model.ClassifyCalendarRow(row)
+		title := str(row, "title")
+		if title == "" {
+			title = str(row, "name")
+		}
+		if title == "" {
+			title = "(untitled)"
+		}
+		raw := make(map[string]any, len(row)+1)
+		for k, v := range row {
+			raw[k] = v
+		}
+		raw["type"] = typeLabel
+		out = append(out, model.Item{
+			ID:    idStr(row, "objectId"),
+			Title: title,
+			Kind:  kind,
+			Raw:   raw,
+		})
+	}
+	return out
+}
+
+// ListCalendar returns calendars and events for the upcoming date window.
+func (l *Loader) ListCalendar(ctx context.Context) ([]model.Item, error) {
+	if l == nil || l.Client == nil {
+		return nil, fmt.Errorf("fetch: client is nil")
+	}
+	start := time.Now().AddDate(0, 0, -7).Format("2006-01-02")
+	end := time.Now().AddDate(0, 0, 30).Format("2006-01-02")
+	rows, err := l.Client.ListCalendars(ctx, start, end)
+	if err != nil {
+		return nil, err
+	}
+	return CalendarItemsFromRows(rows), nil
+}
diff --git a/cmd/office/fetch/fetch_integration_test.go b/cmd/office/fetch/fetch_integration_test.go
index ba0aea3..947f1fc 100644
--- a/cmd/office/fetch/fetch_integration_test.go
+++ b/cmd/office/fetch/fetch_integration_test.go
@@ -39,8 +39,7 @@ func TestIntegrationListAllSubjects(t *testing.T) {
 	cases := []model.ListSpec{
 		{Subject: model.SubjectProjects},
 		{Subject: model.SubjectTasks},
-		{Subject: model.SubjectCalendars},
-		{Subject: model.SubjectEvents},
+		{Subject: model.SubjectCalendar},
 		{Subject: model.SubjectContacts},
 		{Subject: model.SubjectPersons},
 		{Subject: model.SubjectCompanies},
diff --git a/cmd/office/fetch/list.go b/cmd/office/fetch/list.go
index 27ebb83..d5075ed 100644
--- a/cmd/office/fetch/list.go
+++ b/cmd/office/fetch/list.go
@@ -6,12 +6,14 @@ import (
 	"os"
 	"path/filepath"
 	"strconv"
-	"time"
 
 	onlyoffice "github.com/eslider/go-onlyoffice"
 	"github.com/eslider/go-onlyoffice/cmd/office/model"
 )
 
+// MailListPageSize is how many messages each infinite-scroll fetch loads.
+const MailListPageSize = 25
+
 // Loader fetches list items for a menu subject using the OnlyOffice client.
 type Loader struct {
 	Client *onlyoffice.Client
@@ -30,10 +32,12 @@ func (l *Loader) List(ctx context.Context, spec model.ListSpec) ([]model.Item, e
 			return l.listTasksForProject(ctx, spec.ProjectID)
 		}
 		return l.listTasks(ctx)
+	case model.SubjectCalendar:
+		return l.ListCalendar(ctx)
 	case model.SubjectCalendars:
-		return l.listCalendars(ctx)
+		return l.ListCalendar(ctx)
 	case model.SubjectEvents:
-		return l.listEvents(ctx)
+		return l.ListCalendar(ctx)
 	case model.SubjectContacts:
 		return l.listContacts(ctx, nil)
 	case model.SubjectPersons:
@@ -49,15 +53,15 @@ func (l *Loader) List(ctx context.Context, spec model.ListSpec) ([]model.Item, e
 	case model.SubjectCRMTasks:
 		return l.listCRMTasks(ctx)
 	case model.SubjectMailInbox:
-		return l.listMail(ctx, onlyoffice.MailFolderInbox)
+		return l.listMail(ctx, onlyoffice.MailFolderInbox, 0)
 	case model.SubjectMailSent:
-		return l.listMail(ctx, onlyoffice.MailFolderSent)
+		return l.listMail(ctx, onlyoffice.MailFolderSent, 0)
 	case model.SubjectMailDrafts:
-		return l.listMail(ctx, onlyoffice.MailFolderDrafts)
+		return l.listMail(ctx, onlyoffice.MailFolderDrafts, 0)
 	case model.SubjectMailTrash:
-		return l.listMail(ctx, onlyoffice.MailFolderTrash)
+		return l.listMail(ctx, onlyoffice.MailFolderTrash, 0)
 	case model.SubjectMailSpam:
-		return l.listMail(ctx, onlyoffice.MailFolderSpam)
+		return l.listMail(ctx, onlyoffice.MailFolderSpam, 0)
 	case model.SubjectUsers:
 		return l.listUsers(ctx)
 	case model.SubjectProjectFiles:
@@ -260,6 +264,9 @@ func (l *Loader) listProjects(ctx context.Context) ([]model.Item, error) {
 		if p.ParticipantCount != nil {
 			raw["participantCount"] = *p.ParticipantCount
 		}
+		if p.Status != nil {
+			raw["status"] = *p.Status
+		}
 		items[i] = model.Item{
 			ID: id, Title: title, Kind: model.KindProject, Raw: raw,
 		}
@@ -275,24 +282,6 @@ func (l *Loader) listTasks(ctx context.Context) ([]model.Item, error) {
 	return ItemsFromMaps(rows, model.KindTask, TaskItemFields), nil
 }
 
-func (l *Loader) listCalendars(ctx context.Context) ([]model.Item, error) {
-	rows, err := l.Client.ListCalendars(ctx, "", "")
-	if err != nil {
-		return nil, err
-	}
-	return ItemsFromMaps(rows, model.KindCalendar, FieldMap{IDKey: "objectId", TitleKey: "title"}), nil
-}
-
-func (l *Loader) listEvents(ctx context.Context) ([]model.Item, error) {
-	start := time.Now().Format("2006-01-02")
-	end := time.Now().AddDate(0, 0, 7).Format("2006-01-02")
-	rows, err := l.Client.ListEvents(ctx, start, end)
-	if err != nil {
-		return nil, err
-	}
-	return ItemsFromMaps(rows, model.KindEvent, FieldMap{IDKey: "objectId", TitleKey: "title", SubtitleKey: "start"}), nil
-}
-
 func (l *Loader) listContacts(ctx context.Context, companyOnly *bool) ([]model.Item, error) {
 	rows, err := l.Client.ListAllContacts(ctx)
 	if err != nil {
@@ -335,14 +324,44 @@ func (l *Loader) listCRMTasks(ctx context.Context) ([]model.Item, error) {
 	return ItemsFromMaps(rows, model.KindCRMTask, TaskItemFields), nil
 }
 
-func (l *Loader) listMail(ctx context.Context, folder int) ([]model.Item, error) {
-	rows, err := l.Client.ListMailMessages(ctx, onlyoffice.MailMessagesFilter{Folder: folder, Count: 50})
+func (l *Loader) listMail(ctx context.Context, folder int, startIndex int) ([]model.Item, error) {
+	rows, err := l.Client.ListMailMessages(ctx, onlyoffice.MailMessagesFilter{
+		Folder:     folder,
+		Count:      MailListPageSize,
+		StartIndex: startIndex,
+	})
 	if err != nil {
 		return nil, err
 	}
 	return ItemsFromMaps(rows, model.KindMail, MailItemFields), nil
 }
 
+// ListMailMore loads the next page of messages for an active mail folder list.
+func (l *Loader) ListMailMore(ctx context.Context, spec model.ListSpec, startIndex int) ([]model.Item, error) {
+	folder, ok := mailFolderForSubject(spec.Subject)
+	if !ok {
+		return nil, fmt.Errorf("fetch: %q is not a mail folder", spec.Subject)
+	}
+	return l.listMail(ctx, folder, startIndex)
+}
+
+func mailFolderForSubject(subject model.Subject) (int, bool) {
+	switch subject {
+	case model.SubjectMailInbox:
+		return onlyoffice.MailFolderInbox, true
+	case model.SubjectMailSent:
+		return onlyoffice.MailFolderSent, true
+	case model.SubjectMailDrafts:
+		return onlyoffice.MailFolderDrafts, true
+	case model.SubjectMailTrash:
+		return onlyoffice.MailFolderTrash, true
+	case model.SubjectMailSpam:
+		return onlyoffice.MailFolderSpam, true
+	default:
+		return 0, false
+	}
+}
+
 func (l *Loader) listUsers(ctx context.Context) ([]model.Item, error) {
 	users, err := l.Client.GetUsers()
 	if err != nil {
diff --git a/cmd/office/fetch/map.go b/cmd/office/fetch/map.go
index d19bdd0..13cf92e 100644
--- a/cmd/office/fetch/map.go
+++ b/cmd/office/fetch/map.go
@@ -14,7 +14,7 @@ type FieldMap struct {
 }
 
 // TaskItemFields is the default field map for project tasks.
-var TaskItemFields = FieldMap{IDKey: "id", TitleKey: "title", SubtitleKey: "status"}
+var TaskItemFields = FieldMap{IDKey: "id", TitleKey: "title"}
 
 // ProjectItemFields is the default field map for projects.
 var ProjectItemFields = FieldMap{IDKey: "id", TitleKey: "title", SubtitleKey: "status"}
diff --git a/cmd/office/fetch/save.go b/cmd/office/fetch/save.go
index 5fbc6c5..a7f8a0b 100644
--- a/cmd/office/fetch/save.go
+++ b/cmd/office/fetch/save.go
@@ -10,29 +10,50 @@ import (
 )
 
 // SaveItem persists editable form fields for supported entity kinds.
-func (l *Loader) SaveItem(ctx context.Context, item model.Item, title, description string) error {
+func (l *Loader) SaveItem(ctx context.Context, item model.Item, fields model.FormFields) error {
 	if l == nil || l.Client == nil {
 		return fmt.Errorf("fetch: client is nil")
 	}
 	switch item.Kind {
 	case model.KindTask:
-		return l.UpdateTask(ctx, item.ID, title, description)
+		return l.UpdateTask(ctx, item.ID, fields.Primary, fields.Secondary)
 	case model.KindProject:
-		id, err := strconv.Atoi(item.ID)
-		if err != nil {
-			return err
-		}
-		_, err = l.Client.UpdateProject(onlyoffice.ProjectUpdateRequest{
-			ID:          id,
-			Title:       title,
-			Description: description,
-		})
-		return err
+		return l.saveProject(ctx, item.ID, fields)
 	default:
 		return fmt.Errorf("save not supported for %s", item.Kind)
 	}
 }
 
+func (l *Loader) saveProject(ctx context.Context, projectID string, fields model.FormFields) error {
+	id, err := strconv.Atoi(projectID)
+	if err != nil {
+		return err
+	}
+	if fields.ResponsibleID == "" {
+		raw, derr := l.Detail(ctx, model.Item{ID: projectID, Kind: model.KindProject})
+		if derr == nil {
+			fields.ResponsibleID = model.ResponsibleIDFromRaw(raw)
+		}
+	}
+	req := onlyoffice.ProjectUpdateRequest{
+		ID:          id,
+		Title:       fields.Primary,
+		Description: fields.Secondary,
+	}
+	if fields.ResponsibleID != "" {
+		req.ResponsibleID = fields.ResponsibleID
+	}
+	if _, err := l.Client.UpdateProject(req); err != nil {
+		return err
+	}
+	if fields.HasStatus {
+		if _, err := l.Client.UpdateProjectStatus(id, string(fields.Status)); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
 // DetailForm loads form field values for the detail pane.
 func (l *Loader) DetailForm(ctx context.Context, item model.Item) (model.FormFields, error) {
 	raw, err := l.Detail(ctx, item)
diff --git a/cmd/office/fetch/save_integration_test.go b/cmd/office/fetch/save_integration_test.go
new file mode 100644
index 0000000..0b7cd16
--- /dev/null
+++ b/cmd/office/fetch/save_integration_test.go
@@ -0,0 +1,52 @@
+//go:build integration
+
+package fetch_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestIntegrationSaveProject(t *testing.T) {
+	loader, ctx := liveLoader(t)
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectProjects})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(items) == 0 {
+		t.Skip("no projects")
+	}
+	item := items[0]
+	fields, err := loader.DetailForm(ctx, item)
+	if err != nil {
+		t.Fatalf("DetailForm: %v", err)
+	}
+	if fields.ResponsibleID == "" {
+		t.Skip("project has no responsible id on this instance")
+	}
+	marker := " office-save-test " + time.Now().UTC().Format(time.RFC3339)
+	fields.Primary = fields.Primary + marker
+	if err := loader.SaveItem(ctx, item, fields); err != nil {
+		t.Fatalf("SaveItem: %v", err)
+	}
+	after, err := loader.DetailForm(ctx, item)
+	if err != nil {
+		t.Fatalf("DetailForm after save: %v", err)
+	}
+	if after.Primary != fields.Primary {
+		t.Fatalf("title not saved: got %q want %q", after.Primary, fields.Primary)
+	}
+	fields.Primary = stringsTrimSuffixMarker(after.Primary, marker)
+	if err := loader.SaveItem(ctx, item, fields); err != nil {
+		t.Logf("cleanup save: %v", err)
+	}
+}
+
+func stringsTrimSuffixMarker(s, marker string) string {
+	if len(s) >= len(marker) && s[len(s)-len(marker):] == marker {
+		return s[:len(s)-len(marker)]
+	}
+	return s
+}
diff --git a/cmd/office/model/calendar_display.go b/cmd/office/model/calendar_display.go
new file mode 100644
index 0000000..0e86f14
--- /dev/null
+++ b/cmd/office/model/calendar_display.go
@@ -0,0 +1,40 @@
+package model
+
+import "fmt"
+
+// ClassifyCalendarRow decides whether an API row is a calendar or an event.
+func ClassifyCalendarRow(raw map[string]any) (Kind, string) {
+	if raw == nil {
+		return KindCalendar, "Calendar"
+	}
+	if strRaw(raw, "start") != "" || strRaw(raw, "end") != "" {
+		return KindEvent, "Event"
+	}
+	if strRaw(raw, "eventType") != "" {
+		return KindEvent, "Event"
+	}
+	return KindCalendar, "Calendar"
+}
+
+// CalendarTypeLabel returns the type column text for a calendar list row.
+func CalendarTypeLabel(it Item) string {
+	if it.Raw != nil {
+		if t := strRaw(it.Raw, "type"); t != "" {
+			return t
+		}
+	}
+	_, label := ClassifyCalendarRow(it.Raw)
+	return label
+}
+
+// FormatCalendarDateTime formats start/end timestamps for the calendar table.
+func FormatCalendarDateTime(v any) string {
+	t, ok := parseDeadlineTime(v)
+	if !ok {
+		if s := fmt.Sprint(v); s != "" && s != "<nil>" {
+			return s
+		}
+		return ""
+	}
+	return t.Format("Jan 2 15:04")
+}
diff --git a/cmd/office/model/calendar_display_test.go b/cmd/office/model/calendar_display_test.go
new file mode 100644
index 0000000..162d48a
--- /dev/null
+++ b/cmd/office/model/calendar_display_test.go
@@ -0,0 +1,37 @@
+package model
+
+import "testing"
+
+func TestClassifyCalendarRow(t *testing.T) {
+	kind, label := ClassifyCalendarRow(map[string]any{
+		"title": "Standup",
+		"start": "2026-06-24T10:00:00Z",
+	})
+	if kind != KindEvent || label != "Event" {
+		t.Fatalf("got kind=%s label=%q", kind, label)
+	}
+	kind, label = ClassifyCalendarRow(map[string]any{"title": "Work"})
+	if kind != KindCalendar || label != "Calendar" {
+		t.Fatalf("got kind=%s label=%q", kind, label)
+	}
+}
+
+func TestBuildCalendarColumnsIncludesType(t *testing.T) {
+	items := []Item{{
+		ID: "1", Title: "Meet", Kind: KindEvent,
+		Raw: map[string]any{"type": "Event", "start": "2026-06-24T10:00:00Z"},
+	}}
+	cols := BuildColumns(SubjectCalendar, items)
+	found := false
+	for _, c := range cols {
+		if c.Key == "type" {
+			found = true
+		}
+		if c.Key == "subtitle" {
+			t.Fatal("subtitle column should not appear")
+		}
+	}
+	if !found {
+		t.Fatal("expected type column")
+	}
+}
diff --git a/cmd/office/model/columns.go b/cmd/office/model/columns.go
index d86a6c3..7f0aa8c 100644
--- a/cmd/office/model/columns.go
+++ b/cmd/office/model/columns.go
@@ -37,6 +37,12 @@ func BuildColumns(subject Subject, items []Item) []TableColumn {
 	if subject == SubjectProjects {
 		return buildProjectColumns(items)
 	}
+	if subject == SubjectTasks {
+		return buildTaskColumns(items)
+	}
+	if subject == SubjectCalendar {
+		return buildCalendarColumns(items)
+	}
 	cols := []TableColumn{
 		{Key: "_sel", Title: "✓", Width: 3},
 		{Key: "id", Title: "ID", Width: 10},
@@ -64,10 +70,43 @@ func BuildColumns(subject Subject, items []Item) []TableColumn {
 	return cols
 }
 
+func buildCalendarColumns(items []Item) []TableColumn {
+	cols := []TableColumn{
+		{Key: "_sel", Title: "✓", Width: 3},
+		{Key: "id", Title: "ID", Width: 10},
+		{Key: "type", Title: "Type", Width: 10},
+		{Key: "title", Title: "Title", Width: 28},
+	}
+	for _, key := range []string{"start", "end"} {
+		if columnHasData(items, key) {
+			cols = append(cols, TableColumn{Key: key, Title: titleLabel(key), Width: defaultWidth(key)})
+		}
+	}
+	sizeColumns(cols, items)
+	return cols
+}
+
+func buildTaskColumns(items []Item) []TableColumn {
+	cols := []TableColumn{
+		{Key: "_sel", Title: "✓", Width: 3},
+		{Key: "id", Title: "ID", Width: 8},
+		{Key: "title", Title: "Title", Width: 28},
+		{Key: "status", Title: "Status", Width: 10},
+	}
+	for _, key := range []string{"deadline", "responsible"} {
+		if columnHasData(items, key) {
+			cols = append(cols, TableColumn{Key: key, Title: titleLabel(key), Width: defaultWidth(key)})
+		}
+	}
+	sizeColumns(cols, items)
+	return cols
+}
+
 func buildProjectColumns(items []Item) []TableColumn {
 	cols := []TableColumn{
 		{Key: "_sel", Title: "✓", Width: 3},
 		{Key: "id", Title: "ID", Width: 8},
+		{Key: "status", Title: "Status", Width: 8},
 		{Key: "title", Title: "Title", Width: 28},
 		{Key: "tasks", Title: "Tasks (open/closed)", Width: 18},
 		{Key: "documents", Title: "Documents", Width: 11},
@@ -89,6 +128,47 @@ func CellText(it Item, key string) string {
 		return it.ID
 	case "title":
 		return it.Title
+	case "type":
+		return CalendarTypeLabel(it)
+	case "start", "end":
+		if it.Raw == nil {
+			return ""
+		}
+		if formatted := FormatCalendarDateTime(it.Raw[key]); formatted != "" {
+			return formatted
+		}
+		return formatAny(it.Raw[key])
+	case "status":
+		switch it.Kind {
+		case KindProject:
+			return ProjectStatusLabel(it.Raw)
+		case KindTask, KindCRMTask:
+			if it.Raw == nil {
+				return ""
+			}
+			return TaskStatusLabel(it.Raw["status"])
+		default:
+			if it.Raw == nil {
+				return ""
+			}
+			return formatAny(it.Raw["status"])
+		}
+	case "deadline":
+		if it.Raw == nil {
+			return ""
+		}
+		if rel := FormatRelativeDeadline(it.Raw["deadline"]); rel != "" {
+			return rel
+		}
+		return formatAny(it.Raw["deadline"])
+	case "responsible":
+		if it.Kind == KindTask || it.Kind == KindCRMTask {
+			return TaskResponsibleLabel(it.Raw)
+		}
+		if it.Raw == nil {
+			return ""
+		}
+		return formatAny(it.Raw["responsible"])
 	case "subtitle":
 		return it.Subtitle
 	case "tasks":
@@ -230,7 +310,7 @@ func defaultWidth(key string) int {
 	case "id", "status", "stage":
 		return 10
 	case "start", "end", "deadline", "date":
-		return 18
+		return 20
 	case "from", "to", "email", "primaryEmail":
 		return 22
 	case "description", "displayName":
diff --git a/cmd/office/model/columns_test.go b/cmd/office/model/columns_test.go
index df09ae6..48d57f0 100644
--- a/cmd/office/model/columns_test.go
+++ b/cmd/office/model/columns_test.go
@@ -11,7 +11,7 @@ func TestBuildProjectColumns(t *testing.T) {
 		},
 	}}
 	cols := BuildColumns(SubjectProjects, items)
-	want := []string{"_sel", "id", "title", "tasks", "documents", "users"}
+	want := []string{"_sel", "id", "status", "title", "tasks", "documents", "users"}
 	if len(cols) != len(want) {
 		t.Fatalf("got %d columns, want %d", len(cols), len(want))
 	}
@@ -21,12 +21,23 @@ func TestBuildProjectColumns(t *testing.T) {
 		}
 	}
 	for _, c := range cols {
-		if c.Key == "status" || c.Key == "subtitle" {
+		if c.Key == "subtitle" {
 			t.Fatalf("unexpected column %q", c.Key)
 		}
 	}
 }
 
+func TestCellTextProjectStatus(t *testing.T) {
+	open := Item{Kind: KindProject, Raw: map[string]any{"status": 0}}
+	if got := CellText(open, "status"); got != "Open" {
+		t.Fatalf("got %q", got)
+	}
+	closed := Item{Kind: KindProject, Raw: map[string]any{"status": 2}}
+	if got := CellText(closed, "status"); got != "Closed" {
+		t.Fatalf("got %q", got)
+	}
+}
+
 func TestFormatProjectTasksOpenClosed(t *testing.T) {
 	raw := map[string]any{"taskCount": 3, "taskCountTotal": 8}
 	if got := formatProjectTasks(raw); got != "3/5" {
diff --git a/cmd/office/model/filter.go b/cmd/office/model/filter.go
new file mode 100644
index 0000000..7fcc2d2
--- /dev/null
+++ b/cmd/office/model/filter.go
@@ -0,0 +1,34 @@
+package model
+
+import (
+	"strings"
+)
+
+// FilterItems returns items whose searchable text contains query (case-insensitive).
+func FilterItems(items []Item, query string) []Item {
+	q := strings.ToLower(strings.TrimSpace(query))
+	if q == "" {
+		out := make([]Item, len(items))
+		copy(out, items)
+		return out
+	}
+	out := make([]Item, 0, len(items))
+	for _, it := range items {
+		if strings.Contains(strings.ToLower(ItemSearchText(it)), q) {
+			out = append(out, it)
+		}
+	}
+	return out
+}
+
+// ItemSearchText joins item fields used for list filtering.
+func ItemSearchText(it Item) string {
+	var parts []string
+	parts = append(parts, it.ID, it.Title, it.Subtitle, string(it.Kind))
+	if it.Raw != nil {
+		for _, v := range it.Raw {
+			parts = append(parts, formatAny(v))
+		}
+	}
+	return strings.Join(parts, " ")
+}
diff --git a/cmd/office/model/filter_test.go b/cmd/office/model/filter_test.go
new file mode 100644
index 0000000..6d9f1a7
--- /dev/null
+++ b/cmd/office/model/filter_test.go
@@ -0,0 +1,26 @@
+package model_test
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestFilterItemsByTitle(t *testing.T) {
+	items := []model.Item{
+		{ID: "1", Title: "Alpha task"},
+		{ID: "2", Title: "Beta task"},
+	}
+	got := model.FilterItems(items, "alpha")
+	if len(got) != 1 || got[0].ID != "1" {
+		t.Fatalf("got %#v", got)
+	}
+}
+
+func TestFilterItemsEmptyQueryReturnsAll(t *testing.T) {
+	items := []model.Item{{ID: "1", Title: "A"}, {ID: "2", Title: "B"}}
+	got := model.FilterItems(items, "  ")
+	if len(got) != 2 {
+		t.Fatalf("got len=%d want 2", len(got))
+	}
+}
diff --git a/cmd/office/model/formfields.go b/cmd/office/model/formfields.go
index 6e23f11..9d93848 100644
--- a/cmd/office/model/formfields.go
+++ b/cmd/office/model/formfields.go
@@ -9,6 +9,9 @@ type FormFields struct {
 	Primary        string
 	Secondary      string
 	ReadOnly       bool
+	HasStatus      bool
+	Status         ProjectLifecycle
+	ResponsibleID  string
 }
 
 // KindHeading returns a short label for the detail pane header.
@@ -80,6 +83,21 @@ func FormFieldsFromRaw(kind Kind, raw map[string]any) FormFields {
 			Primary: strRaw(raw, "title"), Secondary: strRaw(raw, "description"),
 			ReadOnly: true,
 		}
+	case KindProject:
+		title := strRaw(raw, "title")
+		if title == "" {
+			title = strRaw(raw, "name")
+		}
+		return FormFields{
+			PrimaryLabel:   "Title",
+			SecondaryLabel: "Description",
+			Primary:        title,
+			Secondary:      strRaw(raw, "description"),
+			ReadOnly:       false,
+			HasStatus:      true,
+			Status:         ProjectStatusFromAny(raw["status"]),
+			ResponsibleID:  ResponsibleIDFromRaw(raw),
+		}
 	default:
 		title := strRaw(raw, "title")
 		if title == "" {
@@ -109,7 +127,19 @@ func strRaw(m map[string]any, key string) string {
 	return fmt.Sprint(m[key])
 }
 
-// IsDocumentKind is true when the right pane should show file content, not a form.
+// ResponsibleIDFromRaw extracts the project responsible user id from API detail.
+func ResponsibleIDFromRaw(raw map[string]any) string {
+	if id := strRaw(raw, "responsibleId"); id != "" {
+		return id
+	}
+	resp, ok := raw["responsible"].(map[string]any)
+	if !ok {
+		return ""
+	}
+	return strRaw(resp, "id")
+}
+
+// IsDocumentKind is true when the right pane should show rendered preview content, not an editable form.
 func IsDocumentKind(kind Kind) bool {
-	return kind == KindFile
+	return kind == KindFile || kind == KindMail
 }
diff --git a/cmd/office/model/formfields_test.go b/cmd/office/model/formfields_test.go
index 1a19334..2e63484 100644
--- a/cmd/office/model/formfields_test.go
+++ b/cmd/office/model/formfields_test.go
@@ -14,6 +14,9 @@ func TestIsDocumentKind(t *testing.T) {
 	if !IsDocumentKind(KindFile) {
 		t.Fatal("file should be document")
 	}
+	if !IsDocumentKind(KindMail) {
+		t.Fatal("mail should be document preview")
+	}
 	if IsDocumentKind(KindTask) {
 		t.Fatal("task should be form")
 	}
diff --git a/cmd/office/model/item.go b/cmd/office/model/item.go
index a325216..f522000 100644
--- a/cmd/office/model/item.go
+++ b/cmd/office/model/item.go
@@ -39,8 +39,19 @@ const (
 	SubjectProjectFiles  Subject = "project_files"
 	SubjectTaskFiles     Subject = "task_files"
 	SubjectUsers         Subject = "users"
+	SubjectCalendar      Subject = "calendar"
 )
 
+// SubjectIsMail reports whether a list subject loads mailbox messages.
+func SubjectIsMail(s Subject) bool {
+	switch s {
+	case SubjectMailInbox, SubjectMailSent, SubjectMailDrafts, SubjectMailTrash, SubjectMailSpam:
+		return true
+	default:
+		return false
+	}
+}
+
 // FocusPane is which column has keyboard focus.
 type FocusPane int
 
diff --git a/cmd/office/model/item_mail_test.go b/cmd/office/model/item_mail_test.go
new file mode 100644
index 0000000..766c72b
--- /dev/null
+++ b/cmd/office/model/item_mail_test.go
@@ -0,0 +1,12 @@
+package model
+
+import "testing"
+
+func TestSubjectIsMail(t *testing.T) {
+	if !SubjectIsMail(SubjectMailInbox) {
+		t.Fatal("inbox should be mail")
+	}
+	if SubjectIsMail(SubjectProjects) {
+		t.Fatal("projects should not be mail")
+	}
+}
diff --git a/cmd/office/model/nav.go b/cmd/office/model/nav.go
index 97a3ba0..c3bc7f9 100644
--- a/cmd/office/model/nav.go
+++ b/cmd/office/model/nav.go
@@ -1,5 +1,7 @@
 package model
 
+import "strings"
+
 // ListSpec tells the fetch layer what to load when a nav leaf is active.
 type ListSpec struct {
 	Subject   Subject
@@ -24,6 +26,7 @@ type NavTree struct {
 	expanded map[string]bool
 	cursor   int
 	visible  []string
+	filter   string
 }
 
 // DefaultNavTree returns the OnlyOffice module tree (static skeleton).
@@ -42,15 +45,11 @@ func DefaultNavTree() *NavTree {
 		}
 	}
 
-	add("projects", "Projects", "", true, nil)
-	add("projects.browse", "Browse", "projects", true, nil)
-	add("projects.browse.all", "All projects", "projects.browse", false, &ListSpec{Subject: SubjectProjects})
-	add("projects.browse.tasks", "All tasks", "projects.browse", false, &ListSpec{Subject: SubjectTasks})
-	add("projects.dynamic", "By project", "projects", true, nil)
+	add("projects", "Projects", "", false, &ListSpec{Subject: SubjectProjects})
+	add("tasks", "Tasks", "", false, &ListSpec{Subject: SubjectTasks})
+	add("projects.dynamic", "By project", "", true, nil)
 
-	add("calendar", "Calendar", "", true, nil)
-	add("calendar.cals", "Calendars", "calendar", false, &ListSpec{Subject: SubjectCalendars})
-	add("calendar.events", "Events", "calendar", false, &ListSpec{Subject: SubjectEvents})
+	add("calendar", "Calendar", "", false, &ListSpec{Subject: SubjectCalendar})
 
 	add("crm", "CRM", "", true, nil)
 	add("crm.contacts", "Contacts", "crm", false, &ListSpec{Subject: SubjectContacts})
@@ -185,20 +184,66 @@ func (t *NavTree) Activate() (*ListSpec, bool) {
 	return nil, false
 }
 
+func (t *NavTree) SetFilter(query string) {
+	t.filter = strings.ToLower(strings.TrimSpace(query))
+	t.rebuildVisible()
+}
+
+func (t *NavTree) ClearFilter() {
+	t.filter = ""
+	t.rebuildVisible()
+}
+
+func (t *NavTree) FilterQuery() string { return t.filter }
+
+func (t *NavTree) nodeLabelMatches(id string) bool {
+	if t.filter == "" {
+		return true
+	}
+	n, ok := t.nodes[id]
+	if !ok {
+		return false
+	}
+	return strings.Contains(strings.ToLower(n.Label), t.filter)
+}
+
+func (t *NavTree) hasMatchingDescendant(id string) bool {
+	for _, child := range t.children[id] {
+		if t.nodeLabelMatches(child) || t.hasMatchingDescendant(child) {
+			return true
+		}
+	}
+	return false
+}
+
+func (t *NavTree) visibleUnderFilter(id string) bool {
+	if t.filter == "" {
+		return true
+	}
+	return t.nodeLabelMatches(id) || t.hasMatchingDescendant(id)
+}
+
 func (t *NavTree) rebuildVisible() {
 	t.visible = t.visible[:0]
-	var walk func(id string, depth int)
-	walk = func(id string, depth int) {
+	var walk func(id string)
+	walk = func(id string) {
+		if !t.visibleUnderFilter(id) {
+			return
+		}
 		t.visible = append(t.visible, id)
-		if !t.expanded[id] {
+		expanded := t.expanded[id]
+		if t.filter != "" && t.hasMatchingDescendant(id) {
+			expanded = true
+		}
+		if !expanded {
 			return
 		}
 		for _, child := range t.children[id] {
-			walk(child, depth+1)
+			walk(child)
 		}
 	}
 	for _, root := range t.roots {
-		walk(root, 0)
+		walk(root)
 	}
 	if t.cursor >= len(t.visible) {
 		t.cursor = len(t.visible) - 1
diff --git a/cmd/office/model/nav_test.go b/cmd/office/model/nav_test.go
index 194805a..b747ca2 100644
--- a/cmd/office/model/nav_test.go
+++ b/cmd/office/model/nav_test.go
@@ -9,7 +9,7 @@ import (
 func TestNavTreeHasExpectedRoots(t *testing.T) {
 	tree := model.DefaultNavTree()
 	roots := tree.RootLabels()
-	want := []string{"Projects", "Calendar", "CRM", "Mail", "Users"}
+	want := []string{"Projects", "Tasks", "By project", "Calendar", "CRM", "Mail", "Users"}
 	if len(roots) != len(want) {
 		t.Fatalf("roots=%v want %v", roots, want)
 	}
@@ -22,42 +22,79 @@ func TestNavTreeHasExpectedRoots(t *testing.T) {
 
 func TestNavExpandCollapse(t *testing.T) {
 	tree := model.DefaultNavTree()
-	if !tree.IsExpandable(0) {
-		t.Fatal("Projects should be expandable")
+	var crm int = -1
+	for i := 0; i < tree.VisibleCount(); i++ {
+		n, ok := tree.NodeAtVisible(i)
+		if ok && n.Label == "CRM" {
+			crm = i
+			break
+		}
 	}
-	tree.ToggleExpand(0)
-	if !tree.IsExpanded(0) {
-		t.Fatal("Projects should expand")
+	if crm < 0 {
+		t.Fatal("CRM node not found")
 	}
-	tree.ToggleExpand(0)
-	if tree.IsExpanded(0) {
-		t.Fatal("Projects should collapse")
+	if !tree.IsExpandable(crm) {
+		t.Fatal("CRM should be expandable")
+	}
+	tree.ToggleExpand(crm)
+	if !tree.IsExpanded(crm) {
+		t.Fatal("CRM should expand")
+	}
+	tree.ToggleExpand(crm)
+	if tree.IsExpanded(crm) {
+		t.Fatal("CRM should collapse")
 	}
 }
 
-func TestNavLeafReturnsListSpec(t *testing.T) {
+func TestNavCalendarLeafReturnsListSpec(t *testing.T) {
 	tree := model.DefaultNavTree()
-	tree.ToggleExpand(0) // Projects
-	tree.ToggleExpand(1) // Browse
-	// Find "All projects" leaf cursor
 	var found int = -1
 	for i := 0; i < tree.VisibleCount(); i++ {
 		n, ok := tree.NodeAtVisible(i)
-		if ok && n.List != nil && n.List.Subject == model.SubjectProjects {
+		if ok && n.Label == "Calendar" {
 			found = i
 			break
 		}
 	}
 	if found < 0 {
-		t.Fatal("all projects leaf not found")
+		t.Fatal("Calendar node not found")
 	}
 	tree.SetCursor(found)
 	spec, ok := tree.CurrentListSpec()
-	if !ok || spec.Subject != model.SubjectProjects {
+	if !ok || spec.Subject != model.SubjectCalendar {
 		t.Fatalf("spec=%v ok=%v", spec, ok)
 	}
 }
 
+func TestNavProjectsLeafReturnsListSpec(t *testing.T) {
+	tree := model.DefaultNavTree()
+	tree.SetCursor(0)
+	spec, ok := tree.CurrentListSpec()
+	if !ok || spec.Subject != model.SubjectProjects {
+		t.Fatalf("projects spec=%v ok=%v", spec, ok)
+	}
+}
+
+func TestNavTasksLeafReturnsListSpec(t *testing.T) {
+	tree := model.DefaultNavTree()
+	var found int = -1
+	for i := 0; i < tree.VisibleCount(); i++ {
+		n, ok := tree.NodeAtVisible(i)
+		if ok && n.Label == "Tasks" {
+			found = i
+			break
+		}
+	}
+	if found < 0 {
+		t.Fatal("Tasks node not found")
+	}
+	tree.SetCursor(found)
+	spec, ok := tree.CurrentListSpec()
+	if !ok || spec.Subject != model.SubjectTasks {
+		t.Fatalf("tasks spec=%v ok=%v", spec, ok)
+	}
+}
+
 func TestPrevFocusPane(t *testing.T) {
 	if got := model.PrevFocusPane(model.FocusList); got != model.FocusMenu {
 		t.Fatalf("got %v", got)
@@ -67,6 +104,41 @@ func TestPrevFocusPane(t *testing.T) {
 	}
 }
 
+func TestNavFilterByLabel(t *testing.T) {
+	tree := model.DefaultNavTree()
+	tree.SetFilter("inbox")
+	found := false
+	for i := 0; i < tree.VisibleCount(); i++ {
+		n, ok := tree.NodeAtVisible(i)
+		if ok && n.Label == "Inbox" {
+			found = true
+			break
+		}
+	}
+	if !found {
+		t.Fatal("Inbox should remain visible when filtering mail")
+	}
+	for i := 0; i < tree.VisibleCount(); i++ {
+		n, ok := tree.NodeAtVisible(i)
+		if ok && n.Label == "Calendar" {
+			t.Fatal("Calendar should be hidden when filtering inbox")
+		}
+	}
+}
+
+func TestNavClearFilterRestoresTree(t *testing.T) {
+	tree := model.DefaultNavTree()
+	before := tree.VisibleCount()
+	tree.SetFilter("zzz-no-match")
+	if tree.VisibleCount() >= before {
+		t.Fatalf("filter should shrink visible nodes")
+	}
+	tree.ClearFilter()
+	if tree.VisibleCount() != before {
+		t.Fatalf("clear filter should restore visible count")
+	}
+}
+
 func TestActionsForContact(t *testing.T) {
 	acts := model.ActionsFor(model.KindContact)
 	if len(acts) != 1 || acts[0].ID != model.ActionDelete {
diff --git a/cmd/office/model/project_status.go b/cmd/office/model/project_status.go
new file mode 100644
index 0000000..d5080b2
--- /dev/null
+++ b/cmd/office/model/project_status.go
@@ -0,0 +1,85 @@
+package model
+
+// ProjectLifecycle is the OnlyOffice project status string accepted by the API.
+type ProjectLifecycle string
+
+const (
+	ProjectLifecycleOpen   ProjectLifecycle = "open"
+	ProjectLifecyclePaused ProjectLifecycle = "paused"
+	ProjectLifecycleClosed ProjectLifecycle = "closed"
+)
+
+// ProjectStatusFromAny maps API status (int or string) to a lifecycle value.
+func ProjectStatusFromAny(v any) ProjectLifecycle {
+	switch x := v.(type) {
+	case string:
+		switch ProjectLifecycle(x) {
+		case ProjectLifecycleOpen, ProjectLifecyclePaused, ProjectLifecycleClosed:
+			return ProjectLifecycle(x)
+		}
+	case float64:
+		return projectStatusFromInt(int(x))
+	case int:
+		return projectStatusFromInt(x)
+	case int64:
+		return projectStatusFromInt(int(x))
+	}
+	return ProjectLifecycleOpen
+}
+
+func projectStatusFromInt(n int) ProjectLifecycle {
+	switch n {
+	case 1:
+		return ProjectLifecyclePaused
+	case 2:
+		return ProjectLifecycleClosed
+	default:
+		return ProjectLifecycleOpen
+	}
+}
+
+// ProjectStatusLabel returns a short UI label for list cells.
+func ProjectStatusLabel(raw map[string]any) string {
+	if raw == nil {
+		return "Open"
+	}
+	return ProjectStatusFromAny(raw["status"]).Label()
+}
+
+// ProjectIsOpen is true when the project is not closed.
+func ProjectIsOpen(raw map[string]any) bool {
+	if raw == nil {
+		return true
+	}
+	return ProjectStatusFromAny(raw["status"]) != ProjectLifecycleClosed
+}
+
+// Label returns a human-readable status name.
+func (s ProjectLifecycle) Label() string {
+	switch s {
+	case ProjectLifecycleClosed:
+		return "Closed"
+	case ProjectLifecyclePaused:
+		return "Paused"
+	default:
+		return "Open"
+	}
+}
+
+// ToggleOpenClosed flips between open and closed (paused maps to closed on toggle).
+func (s ProjectLifecycle) ToggleOpenClosed() ProjectLifecycle {
+	if s == ProjectLifecycleClosed {
+		return ProjectLifecycleOpen
+	}
+	return ProjectLifecycleClosed
+}
+
+// Next cycles open → closed → open for keyboard toggling.
+func (s ProjectLifecycle) Next() ProjectLifecycle {
+	return s.ToggleOpenClosed()
+}
+
+// Prev cycles closed → open → closed.
+func (s ProjectLifecycle) Prev() ProjectLifecycle {
+	return s.ToggleOpenClosed()
+}
diff --git a/cmd/office/model/project_status_test.go b/cmd/office/model/project_status_test.go
new file mode 100644
index 0000000..9c17a28
--- /dev/null
+++ b/cmd/office/model/project_status_test.go
@@ -0,0 +1,26 @@
+package model_test
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestProjectStatusFromInt(t *testing.T) {
+	if got := model.ProjectStatusFromAny(2); got != model.ProjectLifecycleClosed {
+		t.Fatalf("got %q", got)
+	}
+	if got := model.ProjectStatusFromAny(0); got != model.ProjectLifecycleOpen {
+		t.Fatalf("got %q", got)
+	}
+}
+
+func TestProjectStatusToggle(t *testing.T) {
+	s := model.ProjectLifecycleOpen
+	if s.Next() != model.ProjectLifecycleClosed {
+		t.Fatal("expected closed")
+	}
+	if s.Next().Prev() != model.ProjectLifecycleOpen {
+		t.Fatal("expected open after toggle back")
+	}
+}
diff --git a/cmd/office/model/task_display.go b/cmd/office/model/task_display.go
new file mode 100644
index 0000000..4008dde
--- /dev/null
+++ b/cmd/office/model/task_display.go
@@ -0,0 +1,185 @@
+package model
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// TaskStatusLabel returns a human-readable project/CRM task status.
+func TaskStatusLabel(v any) string {
+	if v == nil {
+		return ""
+	}
+	if s, ok := v.(string); ok {
+		if label := taskStatusFromString(s); label != "" {
+			return label
+		}
+	}
+	n := intRawVal(map[string]any{"status": v}, "status")
+	switch n {
+	case 0:
+		return "Not accepted"
+	case 1:
+		return "Open"
+	case 2:
+		return "Closed"
+	case 3:
+		return "Disabled"
+	case 4:
+		return "Unclassified"
+	case 5:
+		return "Not in milestone"
+	default:
+		if s := fmt.Sprint(v); s != "" && s != "<nil>" {
+			return s
+		}
+		return ""
+	}
+}
+
+func taskStatusFromString(s string) string {
+	switch strings.ToLower(strings.TrimSpace(s)) {
+	case "open":
+		return "Open"
+	case "closed":
+		return "Closed"
+	case "notaccept", "not accept", "not accepted":
+		return "Not accepted"
+	case "disable", "disabled":
+		return "Disabled"
+	case "unclassified":
+		return "Unclassified"
+	case "notinmilestone", "not in milestone":
+		return "Not in milestone"
+	default:
+		return ""
+	}
+}
+
+// FormatRelativeDeadline formats a deadline as "in 2 hours" or "3 days ago".
+func FormatRelativeDeadline(v any) string {
+	return FormatRelativeDeadlineAt(v, time.Now())
+}
+
+// FormatRelativeDeadlineAt is FormatRelativeDeadline with a fixed clock (for tests).
+func FormatRelativeDeadlineAt(v any, now time.Time) string {
+	t, ok := parseDeadlineTime(v)
+	if !ok {
+		return ""
+	}
+	return relativeTimePhrase(now, t)
+}
+
+func relativeTimePhrase(now, target time.Time) string {
+	d := target.Sub(now)
+	future := d >= 0
+	if !future {
+		d = -d
+	}
+	phrase := func(n int, unit string) string {
+		if n == 1 {
+			unit = strings.TrimSuffix(unit, "s")
+		}
+		if future {
+			return fmt.Sprintf("in %d %s", n, unit)
+		}
+		return fmt.Sprintf("%d %s ago", n, unit)
+	}
+	switch {
+	case d < time.Minute:
+		if future {
+			return "in 1 minute"
+		}
+		return "just now"
+	case d < time.Hour:
+		return phrase(int(d.Round(time.Minute)/time.Minute), "minutes")
+	case d < 24*time.Hour:
+		return phrase(int(d.Round(time.Hour)/time.Hour), "hours")
+	default:
+		return phrase(int(d.Round(24*time.Hour)/(24*time.Hour)), "days")
+	}
+}
+
+func parseDeadlineTime(v any) (time.Time, bool) {
+	if v == nil {
+		return time.Time{}, false
+	}
+	switch x := v.(type) {
+	case time.Time:
+		return x, true
+	case string:
+		s := strings.TrimSpace(x)
+		if s == "" {
+			return time.Time{}, false
+		}
+		formats := []string{
+			time.RFC3339Nano,
+			"2006-01-02T15:04:05.0000000-07:00",
+			"2006-01-02T15:04:05-07:00",
+			"2006-01-02T15:04:05",
+			"2006-01-02",
+		}
+		for _, layout := range formats {
+			if t, err := time.Parse(layout, s); err == nil {
+				return t, true
+			}
+		}
+		return time.Time{}, false
+	case float64:
+		return time.Unix(int64(x), 0), true
+	case int64:
+		return time.Unix(x, 0), true
+	case int:
+		return time.Unix(int64(x), 0), true
+	default:
+		return parseDeadlineTime(fmt.Sprint(v))
+	}
+}
+
+// TaskResponsibleLabel returns the assignee display name when present.
+func TaskResponsibleLabel(raw map[string]any) string {
+	if raw == nil {
+		return ""
+	}
+	if name := personName(raw["responsible"]); name != "" {
+		return name
+	}
+	if list, ok := raw["responsibles"].([]any); ok {
+		names := make([]string, 0, len(list))
+		for _, entry := range list {
+			if name := personName(entry); name != "" {
+				names = append(names, name)
+			}
+		}
+		if len(names) > 0 {
+			return strings.Join(names, ", ")
+		}
+	}
+	if s := strRaw(raw, "responsible"); s != "" && !looksLikeID(s) {
+		return s
+	}
+	return ""
+}
+
+func personName(v any) string {
+	m, ok := v.(map[string]any)
+	if !ok {
+		return ""
+	}
+	if name := strRaw(m, "displayName"); name != "" {
+		return name
+	}
+	first := strRaw(m, "firstName")
+	last := strRaw(m, "lastName")
+	return strings.TrimSpace(first + " " + last)
+}
+
+func looksLikeID(s string) bool {
+	if len(s) == 36 && strings.Count(s, "-") == 4 {
+		return true
+	}
+	_, err := strconv.Atoi(s)
+	return err == nil
+}
diff --git a/cmd/office/model/task_display_test.go b/cmd/office/model/task_display_test.go
new file mode 100644
index 0000000..ce32cc2
--- /dev/null
+++ b/cmd/office/model/task_display_test.go
@@ -0,0 +1,49 @@
+package model
+
+import (
+	"testing"
+	"time"
+)
+
+func TestTaskStatusLabelFromInt(t *testing.T) {
+	if got := TaskStatusLabel(1); got != "Open" {
+		t.Fatalf("got %q", got)
+	}
+	if got := TaskStatusLabel(2); got != "Closed" {
+		t.Fatalf("got %q", got)
+	}
+}
+
+func TestFormatRelativeDeadlineFuture(t *testing.T) {
+	now := time.Date(2026, 6, 24, 12, 0, 0, 0, time.UTC)
+	deadline := now.Add(2 * time.Hour)
+	got := FormatRelativeDeadlineAt(deadline.Format(time.RFC3339), now)
+	if got != "in 2 hours" {
+		t.Fatalf("got %q", got)
+	}
+}
+
+func TestFormatRelativeDeadlineDays(t *testing.T) {
+	now := time.Date(2026, 6, 24, 12, 0, 0, 0, time.UTC)
+	deadline := now.Add(26 * time.Hour)
+	got := FormatRelativeDeadlineAt(deadline.Format(time.RFC3339), now)
+	if got != "in 1 day" {
+		t.Fatalf("got %q", got)
+	}
+}
+
+func TestBuildTaskColumnsOmitsSubtitle(t *testing.T) {
+	items := []Item{{
+		ID: "1", Title: "Fix bug", Kind: KindTask, Subtitle: "1",
+		Raw: map[string]any{"status": 1, "deadline": "2026-06-25T12:00:00Z"},
+	}}
+	cols := BuildColumns(SubjectTasks, items)
+	for _, c := range cols {
+		if c.Key == "subtitle" {
+			t.Fatalf("unexpected subtitle column")
+		}
+	}
+	if CellText(items[0], "status") != "Open" {
+		t.Fatalf("status not humanized")
+	}
+}
diff --git a/cmd/office/preview/entity.go b/cmd/office/preview/entity.go
index 6fdfc87..9f62706 100644
--- a/cmd/office/preview/entity.go
+++ b/cmd/office/preview/entity.go
@@ -42,25 +42,71 @@ func OpportunityMarkdown(m map[string]any) string {
 	return strings.TrimSpace(b.String()) + "\n"
 }
 
-// MailMarkdown formats a mail message for preview.
+// MailMarkdown formats a mail message for terminal preview (HTML body is converted to markdown).
 func MailMarkdown(m map[string]any) string {
 	var b strings.Builder
 	fmt.Fprintf(&b, "# %s\n\n", str(m, "subject"))
-	fmt.Fprintf(&b, "**From:** %s\n\n", str(m, "from"))
-	if to := str(m, "to"); to != "" {
+	fmt.Fprintf(&b, "**From:** %s\n\n", mailAddressLine(m, "from"))
+	if to := mailAddressLine(m, "to"); to != "" {
 		fmt.Fprintf(&b, "**To:** %s\n\n", to)
 	}
-	body := str(m, "body")
-	if body == "" {
-		body = str(m, "htmlBody")
+	if cc := mailAddressLine(m, "cc"); cc != "" {
+		fmt.Fprintf(&b, "**Cc:** %s\n\n", cc)
 	}
-	body = stripHTML(body)
-	if body != "" {
-		fmt.Fprintf(&b, "## Body\n\n%s\n\n", body)
+	if date := str(m, "date"); date != "" {
+		fmt.Fprintf(&b, "**Date:** %s\n\n", date)
+	}
+	if body := mailBodyMarkdown(m); body != "" {
+		fmt.Fprintf(&b, "---\n\n%s\n", body)
 	}
 	return strings.TrimSpace(b.String()) + "\n"
 }
 
+func mailAddressLine(m map[string]any, key string) string {
+	if v := str(m, key); v != "" {
+		return v
+	}
+	name := str(m, key+"Name")
+	addr := str(m, key+"Address")
+	switch {
+	case name != "" && addr != "":
+		return fmt.Sprintf("%s <%s>", name, addr)
+	case addr != "":
+		return addr
+	default:
+		return name
+	}
+}
+
+func mailBodyMarkdown(m map[string]any) string {
+	htmlBody := strings.TrimSpace(str(m, "htmlBody"))
+	plainBody := strings.TrimSpace(str(m, "body"))
+
+	for _, candidate := range []string{htmlBody, plainBody} {
+		if candidate == "" {
+			continue
+		}
+		if looksLikeHTML(candidate) {
+			if md, err := HTMLToMarkdown(candidate); err == nil {
+				if md = strings.TrimSpace(md); md != "" {
+					return md
+				}
+			}
+		}
+	}
+	if plainBody != "" {
+		return plainBody
+	}
+	if htmlBody != "" {
+		return stripHTML(htmlBody)
+	}
+	return ""
+}
+
+func looksLikeHTML(s string) bool {
+	return strings.Contains(s, "<") && strings.Contains(s, ">") && htmlTagRe.MatchString(s)
+}
+
 // EventMarkdown formats a calendar event for preview.
 func EventMarkdown(m map[string]any) string {
 	var b strings.Builder
diff --git a/cmd/office/preview/entity_test.go b/cmd/office/preview/entity_test.go
new file mode 100644
index 0000000..2c1c769
--- /dev/null
+++ b/cmd/office/preview/entity_test.go
@@ -0,0 +1,58 @@
+package preview_test
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/preview"
+)
+
+func TestMailMarkdownConvertsHTMLBody(t *testing.T) {
+	raw := map[string]any{
+		"subject":  "Weekly update",
+		"from":     `"Team" <team@example.com>`,
+		"htmlBody": `<p>Hello <strong>world</strong></p><p><a href="https://example.com">Link</a></p>`,
+	}
+	md := preview.MailMarkdown(raw)
+	if !strings.Contains(md, "Weekly update") {
+		t.Fatalf("missing subject:\n%s", md)
+	}
+	if !strings.Contains(md, "team@example.com") {
+		t.Fatalf("missing from:\n%s", md)
+	}
+	if strings.Contains(md, "<strong>") || strings.Contains(md, "<p>") {
+		t.Fatalf("expected HTML converted, got raw tags:\n%s", md)
+	}
+	if !strings.Contains(md, "world") {
+		t.Fatalf("missing body text:\n%s", md)
+	}
+}
+
+func TestMailMarkdownRendersWithColor(t *testing.T) {
+	md := preview.MailMarkdown(map[string]any{
+		"subject":  "Styled",
+		"from":     "a@b.com",
+		"htmlBody": `<h2>Heading</h2><p>Plain text</p>`,
+	})
+	out, err := preview.RenderMarkdown(md, 60)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if strings.TrimSpace(out) == "" {
+		t.Fatal("empty render output")
+	}
+	if !strings.Contains(out, "Heading") || !strings.Contains(out, "Plain text") {
+		t.Fatalf("missing rendered content:\n%s", out)
+	}
+}
+
+func TestMailMarkdownPlainBodyFallback(t *testing.T) {
+	md := preview.MailMarkdown(map[string]any{
+		"subject": "Hi",
+		"from":    "a@b.com",
+		"body":    "Just plain text",
+	})
+	if !strings.Contains(md, "Just plain text") {
+		t.Fatalf("missing plain body:\n%s", md)
+	}
+}
diff --git a/cmd/office/preview/preview_integration_test.go b/cmd/office/preview/preview_integration_test.go
index 7930a30..e71907c 100644
--- a/cmd/office/preview/preview_integration_test.go
+++ b/cmd/office/preview/preview_integration_test.go
@@ -119,7 +119,7 @@ func TestIntegrationPreviewMailFromAPI(t *testing.T) {
 
 func TestIntegrationPreviewEventFromAPI(t *testing.T) {
 	loader, ctx := liveLoader(t)
-	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectEvents})
+	items, err := loader.List(ctx, model.ListSpec{Subject: model.SubjectCalendar})
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/cmd/office/ui/app.go b/cmd/office/ui/app.go
index 6626347..beace13 100644
--- a/cmd/office/ui/app.go
+++ b/cmd/office/ui/app.go
@@ -18,6 +18,11 @@ type listLoadedMsg struct {
 	err   error
 }
 
+type listMoreLoadedMsg struct {
+	items []model.Item
+	err   error
+}
+
 type detailLoadedMsg struct {
 	item     model.Item
 	document bool
@@ -27,9 +32,9 @@ type detailLoadedMsg struct {
 }
 
 type detailSavedMsg struct {
-	item               model.Item
-	title, description string
-	err                error
+	item   model.Item
+	fields model.FormFields
+	err    error
 }
 
 type actionDoneMsg struct {
@@ -51,6 +56,8 @@ type Model struct {
 	hasList   bool
 	items     []model.Item
 	selection *model.Selection
+	listHasMore    bool
+	listLoadingMore bool
 	focus     model.FocusPane
 	width     int
 	height    int
@@ -63,6 +70,11 @@ type Model struct {
 	showMenu  bool
 	showList  bool
 	showDetail bool
+	filterActive bool
+	filterSearch FilterSearch
+	customPaneLayout bool
+	paneSizes        PaneWidths
+	resize           paneResizeState
 }
 
 // NewModel constructs the TUI with an authenticated client.
@@ -74,20 +86,21 @@ func NewModel(client *onlyoffice.Client) Model {
 		nav:       model.DefaultNavTree(),
 		selection: model.NewSelection(),
 		focus:     model.FocusMenu,
-		status:    "Tab: pane · row select loads detail · Ctrl+S save · q quit",
+		status:    "Tab: pane · f: filter · row select loads detail · Ctrl+S save · q quit",
 		height:    h,
 		width:     w,
 	}
 	m.menuVP = viewport.New(m.paneInnerWidth(22), m.paneHeight())
 	m.listTable = newDataTable()
 	m.detail = newDetailPane()
+	m.filterSearch = newFilterSearch()
 	m.showMenu, m.showList, m.showDetail = true, true, true
 	m.menuVP.MouseWheelEnabled = true
 	return m
 }
 
 func (m Model) Init() tea.Cmd {
-	return tea.Batch(m.loadNavProjectsCmd(), m.detail.BlinkCmd())
+	return tea.Batch(m.loadNavProjectsCmd(), m.detail.BlinkCmd(), filterSearchBlinkCmd())
 }
 
 func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
@@ -95,12 +108,29 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	case tea.WindowSizeMsg:
 		m.width = msg.Width
 		m.height = msg.Height
+		if m.customPaneLayout {
+			m.paneSizes = FitPaneWidths(m.width, m.paneVis(), m.paneSizes)
+		}
 		m.layoutViewports()
 		m.syncAllContent()
 		return m, nil
 
 	case tea.KeyMsg:
 		key := msg.String()
+		if key == "esc" && m.filterActive {
+			m.exitFilter()
+			return m, nil
+		}
+		if m.filterActive && m.focus == model.FocusPreview && m.showDetail {
+			switch key {
+			case "tab", "shift+tab", "backtab":
+				// allow pane switching while filter stays active
+			default:
+				cmd := m.filterSearch.Update(msg)
+				m.applyFilter()
+				return m, cmd
+			}
+		}
 		if key == "?" {
 			m.status = helpText()
 			return m, nil
@@ -108,7 +138,9 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		if m.scrollFocusedPane(key) {
 			return m, nil
 		}
-		if m.focus == model.FocusPreview {
+		if m.filterActive && m.focus == model.FocusPreview {
+			// filter input owns keys except pane switching handled above
+		} else if m.focus == model.FocusPreview {
 			if cmd, handled := m.handleDetailKey(key, msg); handled {
 				return m, cmd
 			}
@@ -121,11 +153,19 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		case ActionQuit:
 			return m, tea.Quit
 		case ActionNextPane:
+			prev := m.focus
 			m.focus = NextVisibleFocus(m.focus, m.paneVis())
+			if m.focus == model.FocusPreview && prev != model.FocusPreview && !m.filterActive {
+				m.detail.FocusFirstStop()
+			}
 			m.syncPaneFocus()
 			return m, nil
 		case ActionPrevPane:
+			prev := m.focus
 			m.focus = PrevVisibleFocus(m.focus, m.paneVis())
+			if m.focus == model.FocusPreview && prev != model.FocusPreview && !m.filterActive {
+				m.detail.FocusFirstStop()
+			}
 			m.syncPaneFocus()
 			return m, nil
 		case ActionMoveUp:
@@ -144,7 +184,7 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			return m, m.onListRowChanged()
 		case ActionMoveLeft:
 			if m.focus == model.FocusPreview && m.detail.Zone() == detailZoneActions {
-				m.detail.MoveAction(-1)
+				m.detail.MoveTabStop(-1)
 				return m, nil
 			}
 			if m.focus == model.FocusList && m.hasList {
@@ -153,7 +193,7 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			return m, nil
 		case ActionMoveRight:
 			if m.focus == model.FocusPreview && m.detail.Zone() == detailZoneActions {
-				m.detail.MoveAction(1)
+				m.detail.MoveTabStop(1)
 				return m, nil
 			}
 			if m.focus == model.FocusList && m.hasList {
@@ -167,10 +207,14 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			return m, nil
 		case ActionToggleSelect:
 			if m.hasList {
-				idx := m.listTable.ItemIndex()
-				if idx >= 0 {
-					m.selection.Toggle(&m.items, idx)
-					m.listTable.UpdateItems(m.items)
+				if it, ok := m.listTableItem(); ok {
+					for i := range m.items {
+						if m.items[i].ID == it.ID {
+							m.selection.Toggle(&m.items, i)
+							break
+						}
+					}
+					m.syncListTable()
 				}
 			}
 			return m, nil
@@ -178,7 +222,7 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			if m.hasList && m.showDetail {
 				m.focus = model.FocusPreview
 				m.syncPaneFocus()
-				m.detail.FocusContent()
+				m.detail.FocusFirstStop()
 				return m, m.onListRowChanged()
 			}
 			return m, nil
@@ -191,6 +235,9 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		case ActionToggleDetailPane:
 			m.togglePane(3)
 			return m, nil
+		case ActionFilter:
+			m.enterFilter()
+			return m, nil
 		case ActionRefresh:
 			if m.hasList {
 				m.loading = true
@@ -222,10 +269,12 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 
 	case listLoadedMsg:
 		m.loading = false
+		m.listLoadingMore = false
 		if msg.err != nil {
 			m.err = msg.err.Error()
 			m.items = nil
 			m.hasList = false
+			m.listHasMore = false
 			m.listTable.Clear()
 			m.detail.Clear()
 		} else {
@@ -233,9 +282,32 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			m.items = msg.items
 			m.listSpec = msg.spec
 			m.hasList = true
+			m.listHasMore = model.SubjectIsMail(msg.spec.Subject) && len(msg.items) >= fetch.MailListPageSize
 			m.listTable.SetData(m.listSpec, m.items)
+			if m.filterActive {
+				m.applyFilter()
+			}
 		}
-		return m, m.onListRowChanged()
+		return m, tea.Batch(m.onListRowChanged(), m.maybeLoadMoreList())
+
+	case listMoreLoadedMsg:
+		m.listLoadingMore = false
+		m.listTable.SetLoadingMore(false)
+		if msg.err != nil {
+			m.err = msg.err.Error()
+			return m, nil
+		}
+		if len(msg.items) == 0 {
+			m.listHasMore = false
+			return m, nil
+		}
+		added := m.listTable.AppendItems(msg.items)
+		if added > 0 {
+			m.items = m.listTable.Items()
+		}
+		m.listHasMore = len(msg.items) >= fetch.MailListPageSize
+		m.err = ""
+		return m, nil
 
 	case detailLoadedMsg:
 		m.loading = false
@@ -263,11 +335,8 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		if msg.err != nil {
 			m.err = msg.err.Error()
 		} else {
-			m.updateItemAfterSave(msg.item, msg.title, msg.description)
-			fields, _ := m.loader.DetailForm(context.Background(), msg.item)
-			fields.Primary = msg.title
-			fields.Secondary = msg.description
-			m.detail.LoadForm(msg.item, fields)
+			m.updateItemAfterSave(msg.item, msg.fields)
+			m.detail.LoadForm(msg.item, msg.fields)
 			m.detail.SetFocused(m.focus == model.FocusPreview)
 			m.status = "Saved"
 			m.err = ""
@@ -296,6 +365,12 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		return m, nil
 
 	case tea.MouseMsg:
+		if m.handlePaneResizeMouse(msg) {
+			return m, nil
+		}
+		if cmd, handled := m.routeDetailDocumentMouse(msg); handled {
+			return m, cmd
+		}
 		var cmd tea.Cmd
 		switch m.focus {
 		case model.FocusMenu:
@@ -303,7 +378,9 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		case model.FocusList:
 			cmd = m.listTable.Update(msg)
 		case model.FocusPreview:
-			cmd = m.detail.Update(msg)
+			if !m.filterActive {
+				cmd = m.detail.Update(msg)
+			}
 		}
 		return m, cmd
 	}
@@ -315,7 +392,9 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	case model.FocusList:
 		cmd = m.listTable.Update(msg)
 	case model.FocusPreview:
-		cmd = m.detail.Update(msg)
+		if !m.filterActive {
+			cmd = m.detail.Update(msg)
+		}
 	}
 	return m, cmd
 }
@@ -323,7 +402,15 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 func (m *Model) handleDetailKey(key string, msg tea.KeyMsg) (tea.Cmd, bool) {
 	switch key {
 	case "tab", "shift+tab", "backtab":
-		m.detail.ToggleZone()
+		reverse := key != "tab"
+		if reverse {
+			if m.detail.TabBackward() {
+				m.focus = PrevVisibleFocus(m.focus, m.paneVis())
+			}
+		} else if m.detail.TabForward() {
+			m.focus = NextVisibleFocus(m.focus, m.paneVis())
+		}
+		m.syncPaneFocus()
 		return nil, true
 	case "ctrl+s":
 		m.loading = true
@@ -347,16 +434,37 @@ func (m *Model) handleDetailKey(key string, msg tea.KeyMsg) (tea.Cmd, bool) {
 	return nil, false
 }
 
+func (m *Model) routeDetailDocumentMouse(msg tea.MouseMsg) (tea.Cmd, bool) {
+	if m.filterActive || !m.showDetail {
+		return nil, false
+	}
+	if !m.detail.IsDocumentContent() && !m.detail.isReadOnlyFormContent() {
+		return nil, false
+	}
+	if msg.Y > m.paneHeight()+1 {
+		return nil, false
+	}
+	x0, x1 := DetailPaneXRange(m.paneLayout())
+	if x0 >= x1 || msg.X < x0 || msg.X >= x1 {
+		return nil, false
+	}
+	cmd := m.detail.ScrollDocumentMouse(msg)
+	if msg.Button == tea.MouseButtonWheelUp || msg.Button == tea.MouseButtonWheelDown {
+		return cmd, true
+	}
+	return cmd, false
+}
+
 func (m Model) handleDetailMove(delta int) (Model, tea.Cmd) {
-	if m.detail.Zone() == detailZoneActions {
-		m.detail.MoveAction(delta)
+	if m.detail.Zone() == detailZoneContent && (m.detail.IsDocumentContent() || m.detail.isReadOnlyFormContent()) {
+		key := "down"
+		if delta < 0 {
+			key = "up"
+		}
+		m.detail.ScrollDocument(key)
 		return m, nil
 	}
-	if delta < 0 {
-		m.detail.form.FocusPrev()
-	} else {
-		m.detail.form.FocusNext()
-	}
+	m.detail.MoveTabStop(delta)
 	return m, nil
 }
 
@@ -369,7 +477,14 @@ func (m Model) View() string {
 	var parts []string
 	if pw.Visibility.Menu {
 		menuStyle := paneStyle(m.focus == model.FocusMenu).Width(pw.Menu).Height(h)
-		parts = append(parts, menuStyle.Render(m.menuVP.View()))
+		menuBody := ApplyVerticalScrollbar(
+			m.menuVP.View(),
+			m.menuVP.Width,
+			m.menuVP.Height,
+			m.menuVP.TotalLineCount(),
+			m.menuVP.YOffset,
+		)
+		parts = append(parts, menuStyle.Render(menuBody))
 	}
 	if pw.Visibility.List {
 		listStyle := paneStyle(m.focus == model.FocusList).Width(pw.List).Height(h)
@@ -377,7 +492,13 @@ func (m Model) View() string {
 	}
 	if pw.Visibility.Detail {
 		prevStyle := paneStyle(m.focus == model.FocusPreview).Width(pw.Detail).Height(h)
-		parts = append(parts, prevStyle.Render(m.detail.View()))
+		var detailBody string
+		if m.filterActive {
+			detailBody = m.filterSearch.View()
+		} else {
+			detailBody = m.detail.View()
+		}
+		parts = append(parts, prevStyle.Render(detailBody))
 	}
 
 	status := m.status
@@ -397,11 +518,21 @@ func (m Model) paneVis() PaneVisibility {
 }
 
 func (m Model) paneLayout() PaneWidths {
-	return LayoutWidths(m.width, m.paneVis())
+	vis := m.paneVis()
+	if m.customPaneLayout {
+		return FitPaneWidths(m.width, vis, m.paneSizes)
+	}
+	return LayoutWidths(m.width, vis)
 }
 
 func (m *Model) syncPaneFocus() {
 	m.listTable.SetFocused(m.focus == model.FocusList && m.showList)
+	if m.filterActive {
+		m.filterSearch.SetFocused(m.focus == model.FocusPreview && m.showDetail)
+		m.detail.SetFocused(false)
+		return
+	}
+	m.filterSearch.SetFocused(false)
 	m.detail.SetFocused(m.focus == model.FocusPreview && m.showDetail)
 }
 
@@ -427,6 +558,9 @@ func (m *Model) togglePane(which int) {
 	if !paneVisible(m.focus, m.paneVis()) {
 		m.focus = firstVisibleFocus(m.paneVis())
 	}
+	if m.customPaneLayout {
+		m.paneSizes = FitPaneWidths(m.width, m.paneVis(), m.paneSizes)
+	}
 	m.layoutViewports()
 	m.syncAllContent()
 	m.syncPaneFocus()
@@ -436,6 +570,8 @@ func (m Model) withList(spec model.ListSpec) (Model, tea.Cmd) {
 	m.listSpec = spec
 	m.selection.Clear()
 	m.hasList = false
+	m.listHasMore = false
+	m.listLoadingMore = false
 	m.focus = model.FocusList
 	m.listTable.SetFocused(true)
 	m.detail.Clear()
@@ -455,6 +591,7 @@ func (m *Model) layoutViewports() {
 	}
 	if pw.Visibility.Detail {
 		m.detail.SetSize(m.paneInnerWidth(pw.Detail), h)
+		m.filterSearch.SetSize(m.paneInnerWidth(pw.Detail), h)
 	}
 }
 
@@ -468,12 +605,62 @@ func (m *Model) syncListTable() {
 		m.listTable.Clear()
 		return
 	}
-	m.listTable.UpdateItems(m.items)
+	items := m.items
+	if m.filterActive {
+		items = model.FilterItems(m.items, m.filterSearch.Query())
+	}
+	m.listTable.UpdateItems(items)
+}
+
+func (m *Model) enterFilter() {
+	if !m.showDetail {
+		m.showDetail = true
+		m.layoutViewports()
+	}
+	m.filterActive = true
+	m.focus = model.FocusPreview
+	m.syncPaneFocus()
+	m.applyFilter()
+}
+
+func (m *Model) exitFilter() {
+	m.filterActive = false
+	m.filterSearch.Clear()
+	m.nav.ClearFilter()
+	m.syncMenuContent()
+	m.syncListTable()
+	m.syncPaneFocus()
+}
+
+func (m *Model) applyFilter() {
+	q := m.filterSearch.Query()
+	m.nav.SetFilter(q)
+	m.syncMenuContent()
+	m.syncListTable()
+}
+
+func (m Model) listTableItem() (model.Item, bool) {
+	idx := m.listTable.ItemIndex()
+	if idx < 0 {
+		return model.Item{}, false
+	}
+	items := m.items
+	if m.filterActive {
+		items = model.FilterItems(m.items, m.filterSearch.Query())
+	}
+	if idx >= len(items) {
+		return model.Item{}, false
+	}
+	return items[idx], true
 }
 
 func (m *Model) syncMenuContent() {
 	var b strings.Builder
-	b.WriteString("Navigation\n\n")
+	title := "Navigation"
+	if m.filterActive && m.filterSearch.Query() != "" {
+		title += " (filtered)"
+	}
+	b.WriteString(title + "\n\n")
 	menuW := m.menuVP.Width
 	if menuW < 10 {
 		menuW = 20
@@ -603,21 +790,52 @@ func (m *Model) loadNavProjectsCmd() tea.Cmd {
 }
 
 func (m *Model) onListRowChanged() tea.Cmd {
+	if m.filterActive {
+		return nil
+	}
 	if !m.hasList {
 		m.detail.Clear()
-		return nil
+		return m.maybeLoadMoreList()
 	}
-	idx := m.listTable.ItemIndex()
-	if idx < 0 || idx >= len(m.items) {
+	it, ok := m.listTableItem()
+	if !ok {
 		m.detail.Clear()
+		return m.maybeLoadMoreList()
+	}
+	var cmds []tea.Cmd
+	cmds = append(cmds, m.maybeLoadMoreList())
+	if m.detail.LoadedID() != it.ID {
+		m.loading = true
+		cmds = append(cmds, m.loadDetailCmd(it))
+	}
+	return tea.Batch(cmds...)
+}
+
+const mailListLoadThreshold = 3
+
+func (m *Model) maybeLoadMoreList() tea.Cmd {
+	if !m.hasList || m.listLoadingMore || !m.listHasMore || m.filterActive {
 		return nil
 	}
-	it := m.items[idx]
-	if m.detail.LoadedID() == it.ID {
+	if !model.SubjectIsMail(m.listSpec.Subject) {
 		return nil
 	}
-	m.loading = true
-	return m.loadDetailCmd(it)
+	if !m.listTable.NearEnd(mailListLoadThreshold) {
+		return nil
+	}
+	m.listLoadingMore = true
+	m.listTable.SetLoadingMore(true)
+	return m.loadListMoreCmd()
+}
+
+func (m *Model) loadListMoreCmd() tea.Cmd {
+	start := len(m.items)
+	spec := m.listSpec
+	return func() tea.Msg {
+		ctx := context.Background()
+		items, err := m.loader.ListMailMore(ctx, spec, start)
+		return listMoreLoadedMsg{items: items, err: err}
+	}
 }
 
 func (m *Model) loadDetailCmd(item model.Item) tea.Cmd {
@@ -634,31 +852,44 @@ func (m *Model) loadDetailCmd(item model.Item) tea.Cmd {
 
 func (m *Model) saveDetailCmd() tea.Cmd {
 	item := m.detail.Item()
-	title := m.detail.form.Primary()
-	desc := m.detail.form.Secondary()
+	fields := m.detail.form.FormFields()
 	return func() tea.Msg {
 		ctx := context.Background()
-		err := m.loader.SaveItem(ctx, item, title, desc)
-		return detailSavedMsg{item: item, title: title, description: desc, err: err}
+		err := m.loader.SaveItem(ctx, item, fields)
+		return detailSavedMsg{item: item, fields: fields, err: err}
 	}
 }
 
-func (m *Model) updateItemAfterSave(item model.Item, title, description string) {
+func (m *Model) updateItemAfterSave(item model.Item, fields model.FormFields) {
 	for i := range m.items {
 		if m.items[i].ID != item.ID {
 			continue
 		}
-		m.items[i].Title = title
+		m.items[i].Title = fields.Primary
 		if m.items[i].Raw == nil {
 			m.items[i].Raw = map[string]any{}
 		}
-		m.items[i].Raw["title"] = title
-		m.items[i].Raw["description"] = description
-		m.listTable.UpdateItems(m.items)
+		m.items[i].Raw["title"] = fields.Primary
+		m.items[i].Raw["description"] = fields.Secondary
+		if fields.HasStatus {
+			m.items[i].Raw["status"] = statusInt(fields.Status)
+		}
+		m.syncListTable()
 		return
 	}
 }
 
+func statusInt(s model.ProjectLifecycle) int {
+	switch s {
+	case model.ProjectLifecycleClosed:
+		return 2
+	case model.ProjectLifecyclePaused:
+		return 1
+	default:
+		return 0
+	}
+}
+
 func paneStyle(focused bool) lipgloss.Style {
 	s := lipgloss.NewStyle().Padding(0, 1)
 	if focused {
@@ -668,5 +899,5 @@ func paneStyle(focused bool) lipgloss.Style {
 }
 
 func helpText() string {
-	return "Alt+1/2/3: toggle panes · Tab: focus · v: detail · Ctrl+S: save · q: quit"
+	return "Alt+1/2/3: toggle panes · drag borders to resize · f: filter · Tab: fields/actions/pane · j/k: scroll mail · v: detail · Ctrl+S: save · q: quit"
 }
diff --git a/cmd/office/ui/app_test.go b/cmd/office/ui/app_test.go
index 9040193..53dfb1d 100644
--- a/cmd/office/ui/app_test.go
+++ b/cmd/office/ui/app_test.go
@@ -31,6 +31,12 @@ func TestKeyActionSortAndColumns(t *testing.T) {
 	}
 }
 
+func TestKeyActionFilter(t *testing.T) {
+	if got := ui.KeyAction("f", model.FocusList); got != ui.ActionFilter {
+		t.Fatalf("got %v", got)
+	}
+}
+
 func TestLayoutWidths(t *testing.T) {
 	menu, list, preview := ui.LayoutWidthsLegacy(120)
 	if menu+list+preview != 120 {
diff --git a/cmd/office/ui/detail.go b/cmd/office/ui/detail.go
index 7bcd8c2..3d678e4 100644
--- a/cmd/office/ui/detail.go
+++ b/cmd/office/ui/detail.go
@@ -34,12 +34,14 @@ type DetailPane struct {
 	loadedID  string
 	actions   []model.ItemAction
 	actionIdx int
+	tabStop   int
 	zone      detailZone
 	focused   bool
 	width     int
 	height    int
 	form      EntityForm
 	docVP     viewport.Model
+	formVP    viewport.Model
 	docText   string
 	styles    detailStyles
 }
@@ -56,9 +58,11 @@ func newDetailPane() DetailPane {
 	d := DetailPane{
 		form:   newEntityForm(),
 		docVP:  viewport.New(40, 10),
+		formVP: viewport.New(40, 10),
 		styles: newDetailStyles(),
 	}
 	d.docVP.MouseWheelEnabled = true
+	d.formVP.MouseWheelEnabled = true
 	return d
 }
 
@@ -79,14 +83,112 @@ func (d *DetailPane) Clear() {
 	d.loadedID = ""
 	d.actions = nil
 	d.actionIdx = 0
+	d.tabStop = 0
 	d.docText = ""
 	d.form.Clear()
 	d.docVP.SetContent("")
+	d.formVP.SetContent("")
 }
 
 func (d *DetailPane) SetFocused(on bool) {
 	d.focused = on
-	d.form.SetFocused(on && d.zone == detailZoneContent && d.mode == detailForm)
+	d.applyTabStop(d.tabStop)
+}
+
+func (d *DetailPane) FocusFirstStop() {
+	d.tabStop = 0
+	d.applyTabStop(0)
+}
+
+func (d *DetailPane) maxTabStop() int {
+	switch d.mode {
+	case detailForm:
+		if d.form.readOnly {
+			if len(d.actions) == 0 {
+				return 0
+			}
+			return len(d.actions) - 1
+		}
+		fields := d.form.FieldCount()
+		if len(d.actions) == 0 {
+			if fields == 0 {
+				return 0
+			}
+			return fields - 1
+		}
+		return fields + len(d.actions) - 1
+	case detailDocument:
+		if len(d.actions) == 0 {
+			return 0
+		}
+		return len(d.actions)
+	default:
+		return 0
+	}
+}
+
+func (d *DetailPane) applyTabStop(stop int) {
+	if stop < 0 {
+		stop = 0
+	}
+	max := d.maxTabStop()
+	if stop > max {
+		stop = max
+	}
+	d.tabStop = stop
+
+	switch d.mode {
+	case detailForm:
+		if d.form.readOnly {
+			d.zone = detailZoneActions
+			d.actionIdx = stop
+			d.form.SetFocused(false)
+			return
+		}
+		fields := d.form.FieldCount()
+		if stop < fields {
+			d.zone = detailZoneContent
+			d.form.SetFieldIndex(stop)
+			d.form.SetFocused(d.focused)
+			return
+		}
+		d.zone = detailZoneActions
+		d.actionIdx = stop - fields
+		d.form.SetFocused(false)
+	case detailDocument:
+		if stop == 0 {
+			d.zone = detailZoneContent
+			d.form.SetFocused(false)
+			return
+		}
+		d.zone = detailZoneActions
+		d.actionIdx = stop - 1
+		d.form.SetFocused(false)
+	default:
+		d.zone = detailZoneContent
+		d.form.SetFocused(false)
+	}
+}
+
+// TabForward moves to the next field/button. It returns true when focus should leave the pane.
+func (d *DetailPane) TabForward() bool {
+	max := d.maxTabStop()
+	if d.tabStop < max {
+		d.applyTabStop(d.tabStop + 1)
+		return false
+	}
+	d.FocusFirstStop()
+	return true
+}
+
+// TabBackward moves to the previous field/button. It returns true when focus should leave the pane.
+func (d *DetailPane) TabBackward() bool {
+	if d.tabStop > 0 {
+		d.applyTabStop(d.tabStop - 1)
+		return false
+	}
+	d.applyTabStop(d.maxTabStop())
+	return true
 }
 
 func (d *DetailPane) SetSize(w, h int) {
@@ -102,6 +204,8 @@ func (d *DetailPane) SetSize(w, h int) {
 	d.form.SetSize(w, contentH)
 	d.docVP.Width = w
 	d.docVP.Height = contentH
+	d.formVP.Width = w
+	d.formVP.Height = contentH
 }
 
 func (d *DetailPane) splitHeights() (contentH, actionH int) {
@@ -125,7 +229,10 @@ func (d *DetailPane) LoadForm(item model.Item, fields model.FormFields) {
 	d.loadedID = item.ID
 	d.actions = model.ActionsFor(item.Kind)
 	d.actionIdx = 0
+	d.tabStop = 0
 	d.form.Load(item.Kind, item.ID, fields)
+	d.refreshFormViewport()
+	d.applyTabStop(0)
 	d.layoutContent()
 }
 
@@ -135,6 +242,7 @@ func (d *DetailPane) LoadDocument(item model.Item, markdown string, renderWidth
 	d.loadedID = item.ID
 	d.actions = model.ActionsFor(item.Kind)
 	d.actionIdx = 0
+	d.tabStop = 0
 	d.form.Clear()
 	text, err := preview.RenderMarkdown(markdown, renderWidth)
 	if err != nil {
@@ -142,6 +250,8 @@ func (d *DetailPane) LoadDocument(item model.Item, markdown string, renderWidth
 	}
 	d.docText = text
 	d.docVP.SetContent(text)
+	d.docVP.GotoTop()
+	d.applyTabStop(0)
 	d.layoutContent()
 }
 
@@ -150,6 +260,17 @@ func (d *DetailPane) layoutContent() {
 	d.form.SetSize(d.width, contentH)
 	d.docVP.Width = d.width
 	d.docVP.Height = contentH
+	d.formVP.Width = d.width
+	d.formVP.Height = contentH
+	d.refreshFormViewport()
+}
+
+func (d *DetailPane) refreshFormViewport() {
+	if d.mode != detailForm || !d.form.readOnly {
+		d.formVP.SetContent("")
+		return
+	}
+	d.formVP.SetContent(d.form.View())
 }
 
 func (d *DetailPane) LoadedID() string { return d.loadedID }
@@ -158,24 +279,47 @@ func (d *DetailPane) Item() model.Item { return d.item }
 
 func (d *DetailPane) Zone() detailZone { return d.zone }
 
-func (d *DetailPane) FocusActions() {
-	d.zone = detailZoneActions
-	d.form.SetFocused(false)
-}
-
 func (d *DetailPane) FocusContent() {
-	d.zone = detailZoneContent
-	d.form.SetFocused(d.focused && d.mode == detailForm)
+	d.applyTabStop(d.tabStop)
+	if d.zone == detailZoneContent && d.mode == detailForm {
+		d.form.SetFocused(d.focused)
+	}
 }
 
-func (d *DetailPane) ToggleZone() {
-	if d.zone == detailZoneContent {
-		d.FocusActions()
-	} else {
-		d.FocusContent()
+func (d *DetailPane) FocusActions() {
+	max := d.maxTabStop()
+	switch d.mode {
+	case detailForm:
+		if d.form.readOnly {
+			d.applyTabStop(max)
+			return
+		}
+		if len(d.actions) > 0 {
+			d.applyTabStop(d.form.FieldCount())
+		}
+	case detailDocument:
+		if len(d.actions) > 0 {
+			d.applyTabStop(1)
+		}
 	}
 }
 
+// MoveTabStop moves between title, description, and action buttons without leaving the pane.
+func (d *DetailPane) MoveTabStop(delta int) {
+	if delta == 0 {
+		return
+	}
+	next := d.tabStop + delta
+	if next < 0 {
+		next = 0
+	}
+	max := d.maxTabStop()
+	if next > max {
+		next = max
+	}
+	d.applyTabStop(next)
+}
+
 func (d *DetailPane) MoveAction(delta int) {
 	if len(d.actions) == 0 {
 		return
@@ -190,6 +334,62 @@ func (d *DetailPane) SelectedAction() (model.ItemAction, bool) {
 	return d.actions[d.actionIdx], true
 }
 
+func (d DetailPane) IsDocumentContent() bool {
+	return d.mode == detailDocument
+}
+
+func (d DetailPane) isReadOnlyFormContent() bool {
+	return d.mode == detailForm && d.form.readOnly
+}
+
+func (d DetailPane) documentContentHeight() int {
+	contentH, _ := d.splitHeights()
+	return contentH
+}
+
+// ScrollDocument scrolls the read-only document viewport (mail, file preview).
+func (d *DetailPane) ScrollDocument(key string) bool {
+	if d.IsDocumentContent() {
+		return scrollViewport(&d.docVP, key)
+	}
+	if d.isReadOnlyFormContent() && d.zone == detailZoneContent {
+		return scrollViewport(&d.formVP, key)
+	}
+	return false
+}
+
+// ScrollDocumentMouse applies wheel events to scrollable preview content.
+func (d *DetailPane) ScrollDocumentMouse(msg tea.MouseMsg) tea.Cmd {
+	var vp *viewport.Model
+	switch {
+	case d.IsDocumentContent():
+		vp = &d.docVP
+	case d.isReadOnlyFormContent():
+		vp = &d.formVP
+	default:
+		return nil
+	}
+	if msg.Y >= d.documentContentHeight() {
+		return nil
+	}
+	if !vp.MouseWheelEnabled || msg.Action != tea.MouseActionPress {
+		return nil
+	}
+	switch msg.Button {
+	case tea.MouseButtonWheelUp, tea.MouseButtonWheelDown:
+	default:
+		return nil
+	}
+	var cmd tea.Cmd
+	*vp, cmd = vp.Update(msg)
+	return cmd
+}
+
+// DocumentYOffset exposes scroll position for tests.
+func (d DetailPane) DocumentYOffset() int {
+	return d.docVP.YOffset
+}
+
 func (d *DetailPane) Update(msg tea.Msg) tea.Cmd {
 	if !d.focused {
 		return nil
@@ -197,14 +397,21 @@ func (d *DetailPane) Update(msg tea.Msg) tea.Cmd {
 	if d.zone == detailZoneContent {
 		switch d.mode {
 		case detailForm:
+			if d.form.readOnly {
+				if key, ok := msg.(tea.KeyMsg); ok {
+					if scrollViewport(&d.formVP, key.String()) {
+						return nil
+					}
+				}
+				var cmd tea.Cmd
+				d.formVP, cmd = d.formVP.Update(msg)
+				return cmd
+			}
 			return d.form.Update(msg)
 		case detailDocument:
-			if _, ok := msg.(tea.KeyMsg); ok {
-				switch msg.(tea.KeyMsg).String() {
-				case "pgdown", "pgdn", "f", "ctrl+d":
-					d.docVP.ViewDown()
-				case "pgup", "b", "ctrl+u":
-					d.docVP.ViewUp()
+			if key, ok := msg.(tea.KeyMsg); ok {
+				if scrollViewport(&d.docVP, key.String()) {
+					return nil
 				}
 			}
 			var cmd tea.Cmd
@@ -223,9 +430,25 @@ func (d DetailPane) View() string {
 	var top string
 	switch d.mode {
 	case detailForm:
-		top = lipgloss.NewStyle().Width(d.width).Height(contentH).Render(d.form.View())
+		if d.form.readOnly {
+			top = ApplyVerticalScrollbar(
+				d.formVP.View(),
+				d.formVP.Width,
+				d.formVP.Height,
+				d.formVP.TotalLineCount(),
+				d.formVP.YOffset,
+			)
+		} else {
+			top = lipgloss.NewStyle().Width(d.width).Height(contentH).Render(d.form.View())
+		}
 	case detailDocument:
-		top = d.docVP.View()
+		top = ApplyVerticalScrollbar(
+			d.docVP.View(),
+			d.docVP.Width,
+			d.docVP.Height,
+			d.docVP.TotalLineCount(),
+			d.docVP.YOffset,
+		)
 	default:
 		top = ""
 	}
@@ -258,7 +481,7 @@ func (d DetailPane) renderActions() string {
 	}
 	line := strings.Join(parts, "")
 	if d.focused && d.zone == detailZoneActions {
-		line += d.styles.empty.Render("  ←/→ select · Enter run")
+		line += d.styles.empty.Render("  Tab · Enter run")
 	}
 	return line
 }
diff --git a/cmd/office/ui/detail_scroll_test.go b/cmd/office/ui/detail_scroll_test.go
new file mode 100644
index 0000000..bbf9a4f
--- /dev/null
+++ b/cmd/office/ui/detail_scroll_test.go
@@ -0,0 +1,60 @@
+package ui
+
+import (
+	"testing"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestDetailDocumentScrollByKey(t *testing.T) {
+	d := newDetailPane()
+	d.SetSize(50, 20)
+	longBody := "# Mail\n\n"
+	for i := 0; i < 80; i++ {
+		longBody += "line\n"
+	}
+	d.LoadDocument(model.Item{ID: "1", Kind: model.KindMail, Title: "M"}, longBody, 40)
+	d.SetFocused(true)
+
+	if d.DocumentYOffset() != 0 {
+		t.Fatalf("expected top offset 0, got %d", d.DocumentYOffset())
+	}
+	if !d.ScrollDocument("down") {
+		t.Fatal("expected scroll down to succeed")
+	}
+	if d.DocumentYOffset() == 0 {
+		t.Fatal("expected offset after scroll down")
+	}
+	if !d.ScrollDocument("up") {
+		t.Fatal("expected scroll up to succeed")
+	}
+}
+
+func TestDetailDocumentMouseWheel(t *testing.T) {
+	d := newDetailPane()
+	d.SetSize(50, 20)
+	longBody := "# Mail\n\n"
+	for i := 0; i < 80; i++ {
+		longBody += "line\n"
+	}
+	d.LoadDocument(model.Item{ID: "1", Kind: model.KindMail, Title: "M"}, longBody, 40)
+
+	d.ScrollDocumentMouse(tea.MouseMsg{
+		X: 10, Y: 2, Button: tea.MouseButtonWheelDown, Action: tea.MouseActionPress,
+	})
+	if d.DocumentYOffset() == 0 {
+		t.Fatal("expected wheel down to scroll document")
+	}
+}
+
+func TestDetailPaneXRange(t *testing.T) {
+	pw := PaneWidths{
+		Menu: 12, List: 72, Detail: 36,
+		Visibility: PaneVisibility{Menu: true, List: true, Detail: true},
+	}
+	start, end := DetailPaneXRange(pw)
+	if start != 84 || end != 120 {
+		t.Fatalf("range=%d..%d want 84..120", start, end)
+	}
+}
diff --git a/cmd/office/ui/detail_tab_test.go b/cmd/office/ui/detail_tab_test.go
new file mode 100644
index 0000000..f6a2208
--- /dev/null
+++ b/cmd/office/ui/detail_tab_test.go
@@ -0,0 +1,65 @@
+package ui
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestDetailTabOrderProjectForm(t *testing.T) {
+	d := newDetailPane()
+	d.SetFocused(true)
+	d.LoadForm(model.Item{ID: "1", Kind: model.KindProject, Title: "P"}, model.FormFields{
+		PrimaryLabel: "Title", SecondaryLabel: "Description",
+		Primary: "Alpha", Secondary: "Beta", HasStatus: true,
+		Status: model.ProjectLifecycleOpen,
+	})
+
+	if d.tabStop != 0 || d.form.field != entityFieldPrimary {
+		t.Fatalf("start on title, tabStop=%d field=%d", d.tabStop, d.form.field)
+	}
+	if d.TabForward() {
+		t.Fatal("tab from title should stay in pane")
+	}
+	if d.form.field != entityFieldSecondary {
+		t.Fatalf("second stop should be description, field=%d", d.form.field)
+	}
+	if d.TabForward() {
+		t.Fatal("tab from description should stay in pane")
+	}
+	if d.form.field != entityFieldStatus {
+		t.Fatalf("third stop should be status, field=%d", d.form.field)
+	}
+	if d.TabForward() {
+		t.Fatal("tab from status should stay in pane")
+	}
+	if d.Zone() != detailZoneActions || d.actionIdx != 0 {
+		t.Fatalf("fourth stop should be Save, zone=%d idx=%d", d.Zone(), d.actionIdx)
+	}
+	if d.TabForward() {
+		t.Fatal("tab from Save should stay in pane")
+	}
+	if d.actionIdx != 1 {
+		t.Fatalf("fifth stop should be Delete, idx=%d", d.actionIdx)
+	}
+	if !d.TabForward() {
+		t.Fatal("tab from Delete should leave pane")
+	}
+	if d.tabStop != 0 {
+		t.Fatalf("after leaving pane tab order resets, tabStop=%d", d.tabStop)
+	}
+}
+
+func TestDetailShiftTabFromTitleLeavesPane(t *testing.T) {
+	d := newDetailPane()
+	d.SetFocused(true)
+	d.LoadForm(model.Item{ID: "1", Kind: model.KindProject}, model.FormFields{
+		PrimaryLabel: "Title", SecondaryLabel: "Description",
+	})
+	if !d.TabBackward() {
+		t.Fatal("shift+tab from title should leave pane")
+	}
+	if d.tabStop != d.maxTabStop() {
+		t.Fatalf("should park on last stop, tabStop=%d max=%d", d.tabStop, d.maxTabStop())
+	}
+}
diff --git a/cmd/office/ui/entityform.go b/cmd/office/ui/entityform.go
index fbdc882..81fd229 100644
--- a/cmd/office/ui/entityform.go
+++ b/cmd/office/ui/entityform.go
@@ -15,6 +15,7 @@ type entityField int
 const (
 	entityFieldPrimary entityField = iota
 	entityFieldSecondary
+	entityFieldStatus
 )
 
 // EntityForm is the top section of the detail pane for editable entities.
@@ -25,6 +26,9 @@ type EntityForm struct {
 	primaryLabel   string
 	secondaryLabel string
 	readOnly       bool
+	hasStatus      bool
+	status         model.ProjectLifecycle
+	responsibleID  string
 	primary        textinput.Model
 	secondary      textarea.Model
 	field          entityField
@@ -65,6 +69,27 @@ func newEntityForm() EntityForm {
 	}
 }
 
+func (f *EntityForm) FieldCount() int {
+	n := 2
+	if f.hasStatus {
+		n = 3
+	}
+	return n
+}
+
+func (f *EntityForm) FormFields() model.FormFields {
+	return model.FormFields{
+		PrimaryLabel:   f.primaryLabel,
+		SecondaryLabel: f.secondaryLabel,
+		Primary:        f.primary.Value(),
+		Secondary:      f.secondary.Value(),
+		ReadOnly:       f.readOnly,
+		HasStatus:      f.hasStatus,
+		Status:         f.status,
+		ResponsibleID:  f.responsibleID,
+	}
+}
+
 func (f *EntityForm) Active() bool { return f.active }
 
 func (f *EntityForm) ItemID() string { return f.itemID }
@@ -82,10 +107,16 @@ func (f *EntityForm) Load(kind model.Kind, itemID string, fields model.FormField
 	f.primaryLabel = fields.PrimaryLabel
 	f.secondaryLabel = fields.SecondaryLabel
 	f.readOnly = fields.ReadOnly
+	f.hasStatus = fields.HasStatus
+	f.status = fields.Status
+	f.responsibleID = fields.ResponsibleID
 	f.primary.SetValue(fields.Primary)
 	f.secondary.SetValue(fields.Secondary)
 	f.dirty = false
 	f.field = entityFieldPrimary
+	if f.hasStatus && f.readOnly {
+		f.field = entityFieldStatus
+	}
 	f.applyFocus()
 	f.layoutFields()
 }
@@ -93,6 +124,9 @@ func (f *EntityForm) Load(kind model.Kind, itemID string, fields model.FormField
 func (f *EntityForm) Clear() {
 	f.active = false
 	f.itemID = ""
+	f.hasStatus = false
+	f.status = model.ProjectLifecycleOpen
+	f.responsibleID = ""
 	f.primary.SetValue("")
 	f.secondary.SetValue("")
 	f.dirty = false
@@ -140,19 +174,52 @@ func (f *EntityForm) layoutFields() {
 }
 
 func (f *EntityForm) FocusNext() {
-	if f.field < entityFieldSecondary {
+	last := entityFieldSecondary
+	if f.hasStatus {
+		last = entityFieldStatus
+	}
+	if f.field < last {
 		f.field++
 	}
 	f.applyFocus()
 }
 
 func (f *EntityForm) FocusPrev() {
-	if f.field > entityFieldPrimary {
+	first := entityFieldPrimary
+	if f.field > first {
 		f.field--
 	}
 	f.applyFocus()
 }
 
+func (f *EntityForm) SetFieldIndex(i int) {
+	switch i {
+	case 0:
+		f.field = entityFieldPrimary
+	case 1:
+		f.field = entityFieldSecondary
+	case 2:
+		if f.hasStatus {
+			f.field = entityFieldStatus
+		}
+	default:
+		return
+	}
+	f.applyFocus()
+}
+
+func (f *EntityForm) cycleStatus(delta int) {
+	if !f.hasStatus || f.readOnly {
+		return
+	}
+	if delta > 0 {
+		f.status = f.status.Next()
+	} else {
+		f.status = f.status.Prev()
+	}
+	f.dirty = true
+}
+
 func (f *EntityForm) applyFocus() {
 	if f.readOnly {
 		f.primary.Blur()
@@ -163,9 +230,12 @@ func (f *EntityForm) applyFocus() {
 	case entityFieldPrimary:
 		f.primary.Focus()
 		f.secondary.Blur()
-	default:
+	case entityFieldSecondary:
 		f.primary.Blur()
 		f.secondary.Focus()
+	default:
+		f.primary.Blur()
+		f.secondary.Blur()
 	}
 }
 
@@ -173,12 +243,27 @@ func (f *EntityForm) Update(msg tea.Msg) tea.Cmd {
 	if !f.active || !f.focused || f.readOnly {
 		return nil
 	}
+	if key, ok := msg.(tea.KeyMsg); ok && f.field == entityFieldStatus {
+		switch key.String() {
+		case "left", "h":
+			f.cycleStatus(-1)
+			return nil
+		case "right", "l":
+			f.cycleStatus(1)
+			return nil
+		case " ":
+			f.cycleStatus(1)
+			return nil
+		}
+	}
 	var cmd tea.Cmd
 	switch f.field {
 	case entityFieldPrimary:
 		f.primary, cmd = f.primary.Update(msg)
-	default:
+	case entityFieldSecondary:
 		f.secondary, cmd = f.secondary.Update(msg)
+	default:
+		return nil
 	}
 	if _, ok := msg.(tea.KeyMsg); ok {
 		f.dirty = true
@@ -199,6 +284,28 @@ func (f EntityForm) View() string {
 	if f.focused && f.field == entityFieldSecondary && !f.readOnly {
 		sLabel = f.styles.labelAct.Render(f.secondaryLabel)
 	}
+	statusBlock := ""
+	if f.hasStatus {
+		stLabel := f.styles.label.Render("Status")
+		if f.focused && f.field == entityFieldStatus && !f.readOnly {
+			stLabel = f.styles.labelAct.Render("Status")
+		}
+		valStyle := f.styles.label
+		if f.status == model.ProjectLifecycleClosed {
+			valStyle = valStyle.Foreground(lipgloss.Color("245"))
+		} else {
+			valStyle = valStyle.Foreground(lipgloss.Color("42"))
+		}
+		hint := ""
+		if f.focused && f.field == entityFieldStatus && !f.readOnly {
+			hint = f.styles.label.Render("  ←/→ toggle")
+		}
+		statusBlock = strings.Join([]string{
+			"",
+			stLabel,
+			valStyle.Render(f.status.Label()) + hint,
+		}, "\n")
+	}
 	ro := ""
 	if f.readOnly {
 		ro = lipgloss.NewStyle().Foreground(lipgloss.Color("241")).Render(" (read-only)") + "\n"
@@ -210,6 +317,7 @@ func (f EntityForm) View() string {
 		"",
 		sLabel,
 		f.secondary.View(),
+		statusBlock,
 	}, "\n")
 }
 
diff --git a/cmd/office/ui/filter.go b/cmd/office/ui/filter.go
new file mode 100644
index 0000000..483152d
--- /dev/null
+++ b/cmd/office/ui/filter.go
@@ -0,0 +1,88 @@
+package ui
+
+import (
+	"strings"
+
+	"github.com/charmbracelet/bubbles/textinput"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+)
+
+// FilterSearch is the right-pane query input for nav/list filtering.
+type FilterSearch struct {
+	input   textinput.Model
+	width   int
+	height  int
+	focused bool
+	styles  filterSearchStyles
+}
+
+type filterSearchStyles struct {
+	title lipgloss.Style
+	hint  lipgloss.Style
+}
+
+func newFilterSearch() FilterSearch {
+	in := textinput.New()
+	in.Prompt = "/ "
+	in.Placeholder = "Filter navigation and list…"
+	in.CharLimit = 256
+	return FilterSearch{
+		input: in,
+		styles: filterSearchStyles{
+			title: lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("252")),
+			hint:  lipgloss.NewStyle().Foreground(lipgloss.Color("241")),
+		},
+	}
+}
+
+func (f *FilterSearch) Query() string { return f.input.Value() }
+
+func (f *FilterSearch) SetFocused(on bool) {
+	f.focused = on
+	if on {
+		f.input.Focus()
+	} else {
+		f.input.Blur()
+	}
+}
+
+func (f *FilterSearch) SetSize(w, h int) {
+	if w < 12 {
+		w = 12
+	}
+	if h < 6 {
+		h = 6
+	}
+	f.width = w
+	f.height = h
+	inner := w - 2
+	if inner < 8 {
+		inner = 8
+	}
+	f.input.Width = inner
+}
+
+func (f *FilterSearch) Clear() {
+	f.input.SetValue("")
+}
+
+func (f *FilterSearch) Update(msg tea.Msg) tea.Cmd {
+	if !f.focused {
+		return nil
+	}
+	var cmd tea.Cmd
+	f.input, cmd = f.input.Update(msg)
+	return cmd
+}
+
+func (f FilterSearch) View() string {
+	title := f.styles.title.Render("Filter")
+	body := lipgloss.NewStyle().Width(f.width).Render(f.input.View())
+	hint := f.styles.hint.Render("Filters left nav and center table · Esc clear · f focus")
+	return strings.Join([]string{title, "", body, "", hint}, "\n")
+}
+
+func filterSearchBlinkCmd() tea.Cmd {
+	return textinput.Blink
+}
diff --git a/cmd/office/ui/keys.go b/cmd/office/ui/keys.go
index feb0629..b3636a5 100644
--- a/cmd/office/ui/keys.go
+++ b/cmd/office/ui/keys.go
@@ -17,6 +17,7 @@ const (
 	ActionToggleMenuPane
 	ActionToggleListPane
 	ActionToggleDetailPane
+	ActionFilter
 	ActionNextPane
 	ActionPrevPane
 	ActionRefresh
@@ -38,6 +39,8 @@ func KeyAction(key string, pane model.FocusPane) Action {
 		}
 	case "r":
 		return ActionRefresh
+	case "f":
+		return ActionFilter
 	case "up", "k":
 		return ActionMoveUp
 	case "down", "j":
diff --git a/cmd/office/ui/layout.go b/cmd/office/ui/layout.go
index b213399..d5bffee 100644
--- a/cmd/office/ui/layout.go
+++ b/cmd/office/ui/layout.go
@@ -17,44 +17,60 @@ func defaultPaneVisibility() PaneVisibility {
 	return PaneVisibility{Menu: true, List: true, Detail: true}
 }
 
-// LayoutWidths splits total terminal width evenly across visible panes.
+const (
+	defaultMenuShare  = 10
+	defaultListShare  = 60
+	defaultDetailShare = 30
+)
+
+// LayoutWidths splits total terminal width across visible panes (default 10% / 60% / 30%).
 func LayoutWidths(total int, vis PaneVisibility) PaneWidths {
 	if total < 1 {
 		total = 80
 	}
 	v := vis
-	n := countVisible(v)
-	if n == 0 {
+	if countVisible(v) == 0 {
 		v = defaultPaneVisibility()
-		n = 3
 	}
-	base := total / n
-	rem := total % n
-	out := PaneWidths{Visibility: v}
+	shareSum := 0
 	if v.Menu {
-		out.Menu = base
-		if rem > 0 {
-			out.Menu++
-			rem--
-		}
+		shareSum += defaultMenuShare
 	}
 	if v.List {
-		out.List = base
-		if rem > 0 {
-			out.List++
-			rem--
-		}
+		shareSum += defaultListShare
 	}
 	if v.Detail {
-		out.Detail = base
-		if rem > 0 {
-			out.Detail++
-			rem--
-		}
+		shareSum += defaultDetailShare
 	}
+	assign := func(visible bool, share int) int {
+		if !visible || shareSum == 0 {
+			return 0
+		}
+		return total * share / shareSum
+	}
+	out := PaneWidths{Visibility: v}
+	out.Menu = assign(v.Menu, defaultMenuShare)
+	out.List = assign(v.List, defaultListShare)
+	out.Detail = assign(v.Detail, defaultDetailShare)
+	fixPaneWidthSum(&out, total)
 	return out
 }
 
+// DetailPaneXRange returns the [start, end) column span of the detail pane.
+func DetailPaneXRange(pw PaneWidths) (start, end int) {
+	if !pw.Visibility.Detail {
+		return 0, 0
+	}
+	if pw.Visibility.Menu {
+		start += pw.Menu
+	}
+	if pw.Visibility.List {
+		start += pw.List
+	}
+	end = start + pw.Detail
+	return start, end
+}
+
 func countVisible(v PaneVisibility) int {
 	n := 0
 	if v.Menu {
diff --git a/cmd/office/ui/layout_resize.go b/cmd/office/ui/layout_resize.go
new file mode 100644
index 0000000..4062ca9
--- /dev/null
+++ b/cmd/office/ui/layout_resize.go
@@ -0,0 +1,203 @@
+package ui
+
+import (
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+const (
+	minPaneOuterWidth = 14
+	resizeHitSlop     = 1
+)
+
+type paneResizeState struct {
+	active   bool
+	divider  int
+	anchorX  int
+	anchorPW PaneWidths
+}
+
+// FitPaneWidths scales stored pane widths to fill total width for visible panes.
+func FitPaneWidths(total int, vis PaneVisibility, sizes PaneWidths) PaneWidths {
+	if total < 1 {
+		total = 80
+	}
+	out := PaneWidths{Visibility: vis}
+	if countVisible(vis) == 0 {
+		return LayoutWidths(total, vis)
+	}
+	sum := 0
+	if vis.Menu {
+		sum += sizes.Menu
+	}
+	if vis.List {
+		sum += sizes.List
+	}
+	if vis.Detail {
+		sum += sizes.Detail
+	}
+	if sum <= 0 {
+		return LayoutWidths(total, vis)
+	}
+	assign := func(visible bool, stored int) int {
+		if !visible {
+			return 0
+		}
+		return stored * total / sum
+	}
+	out.Menu = assign(vis.Menu, sizes.Menu)
+	out.List = assign(vis.List, sizes.List)
+	out.Detail = assign(vis.Detail, sizes.Detail)
+	fixPaneWidthSum(&out, total)
+	return out
+}
+
+func fixPaneWidthSum(pw *PaneWidths, total int) {
+	if pw == nil || total < 1 {
+		return
+	}
+	type slot struct {
+		visible bool
+		width   *int
+	}
+	slots := []slot{
+		{pw.Visibility.Menu, &pw.Menu},
+		{pw.Visibility.List, &pw.List},
+		{pw.Visibility.Detail, &pw.Detail},
+	}
+	sum := 0
+	var last *int
+	for _, s := range slots {
+		if !s.visible {
+			continue
+		}
+		sum += *s.width
+		last = s.width
+	}
+	if last == nil {
+		return
+	}
+	*last += total - sum
+	if *last < minPaneOuterWidth {
+		*last = minPaneOuterWidth
+	}
+}
+
+// DividerPositions returns x coordinates of vertical pane separators.
+func DividerPositions(pw PaneWidths) []int {
+	var out []int
+	x := 0
+	if pw.Visibility.Menu {
+		x += pw.Menu
+		if pw.Visibility.List || pw.Visibility.Detail {
+			out = append(out, x)
+		}
+	}
+	if pw.Visibility.List {
+		x += pw.List
+		if pw.Visibility.Detail {
+			out = append(out, x)
+		}
+	}
+	return out
+}
+
+// DividerAt returns the divider index under x, or -1.
+func DividerAt(x int, pw PaneWidths) int {
+	for i, pos := range DividerPositions(pw) {
+		if x >= pos-resizeHitSlop && x <= pos+resizeHitSlop {
+			return i
+		}
+	}
+	return -1
+}
+
+// DragPaneDivider adjusts adjacent pane widths by deltaX pixels.
+func DragPaneDivider(pw PaneWidths, divider, deltaX int) (PaneWidths, bool) {
+	if deltaX == 0 {
+		return pw, false
+	}
+	changed := false
+	switch divider {
+	case 0:
+		if pw.Visibility.Menu && pw.Visibility.List {
+			if resizePair(&pw.Menu, &pw.List, deltaX) {
+				changed = true
+			}
+		} else if pw.Visibility.Menu && pw.Visibility.Detail {
+			if resizePair(&pw.Menu, &pw.Detail, deltaX) {
+				changed = true
+			}
+		}
+	case 1:
+		if pw.Visibility.List && pw.Visibility.Detail {
+			if resizePair(&pw.List, &pw.Detail, deltaX) {
+				changed = true
+			}
+		}
+	}
+	return pw, changed
+}
+
+func resizePair(left, right *int, delta int) bool {
+	if left == nil || right == nil {
+		return false
+	}
+	newLeft := *left + delta
+	newRight := *right - delta
+	if newLeft < minPaneOuterWidth || newRight < minPaneOuterWidth {
+		return false
+	}
+	*left = newLeft
+	*right = newRight
+	return true
+}
+
+func (m Model) paneResizeMaxY() int {
+	return m.paneHeight() + 1
+}
+
+func (m *Model) handlePaneResizeMouse(msg tea.MouseMsg) bool {
+	if msg.Y >= m.paneResizeMaxY() {
+		if m.resize.active && msg.Action == tea.MouseActionRelease {
+			m.resize.active = false
+			return true
+		}
+		return false
+	}
+
+	pw := m.paneLayout()
+	switch msg.Action {
+	case tea.MouseActionPress:
+		if msg.Button != tea.MouseButtonLeft {
+			return false
+		}
+		if div := DividerAt(msg.X, pw); div >= 0 {
+			m.paneSizes = pw
+			m.customPaneLayout = true
+			m.resize = paneResizeState{
+				active:   true,
+				divider:  div,
+				anchorX:  msg.X,
+				anchorPW: pw,
+			}
+			return true
+		}
+	case tea.MouseActionRelease:
+		if m.resize.active {
+			m.resize.active = false
+			return true
+		}
+	case tea.MouseActionMotion:
+		if m.resize.active {
+			delta := msg.X - m.resize.anchorX
+			next, ok := DragPaneDivider(m.resize.anchorPW, m.resize.divider, delta)
+			if ok {
+				m.paneSizes = next
+				m.layoutViewports()
+				m.syncAllContent()
+			}
+			return true
+		}
+	}
+	return m.resize.active
+}
diff --git a/cmd/office/ui/layout_resize_test.go b/cmd/office/ui/layout_resize_test.go
new file mode 100644
index 0000000..e7bdacc
--- /dev/null
+++ b/cmd/office/ui/layout_resize_test.go
@@ -0,0 +1,41 @@
+package ui
+
+import "testing"
+
+func TestDividerAtBetweenMenuAndList(t *testing.T) {
+	pw := PaneWidths{
+		Menu: 30, List: 50, Detail: 40,
+		Visibility: PaneVisibility{Menu: true, List: true, Detail: true},
+	}
+	if got := DividerAt(30, pw); got != 0 {
+		t.Fatalf("divider at 30=%d want 0", got)
+	}
+	if got := DividerAt(80, pw); got != 1 {
+		t.Fatalf("divider at 80=%d want 1", got)
+	}
+}
+
+func TestDragPaneDividerRespectsMinimum(t *testing.T) {
+	pw := PaneWidths{
+		Menu: 40, List: 40, Detail: 40,
+		Visibility: PaneVisibility{Menu: true, List: true, Detail: true},
+	}
+	next, ok := DragPaneDivider(pw, 0, -30)
+	if ok {
+		t.Fatalf("expected resize blocked by minimum, got %+v", next)
+	}
+	next, ok = DragPaneDivider(pw, 0, 5)
+	if !ok || next.Menu != 45 || next.List != 35 {
+		t.Fatalf("resize failed: ok=%v %+v", ok, next)
+	}
+}
+
+func TestFitPaneWidthsScalesToTotal(t *testing.T) {
+	vis := PaneVisibility{Menu: true, List: true, Detail: true}
+	sizes := PaneWidths{Menu: 20, List: 30, Detail: 50, Visibility: vis}
+	out := FitPaneWidths(120, vis, sizes)
+	sum := out.Menu + out.List + out.Detail
+	if sum != 120 {
+		t.Fatalf("sum=%d want 120", sum)
+	}
+}
diff --git a/cmd/office/ui/layout_test.go b/cmd/office/ui/layout_test.go
index dd6a3e2..82841ce 100644
--- a/cmd/office/ui/layout_test.go
+++ b/cmd/office/ui/layout_test.go
@@ -13,6 +13,9 @@ func TestLayoutWidthsAllVisibleUsesFullWidth(t *testing.T) {
 	if sum != 120 {
 		t.Fatalf("sum=%d want 120", sum)
 	}
+	if pw.Menu != 12 || pw.List != 72 || pw.Detail != 36 {
+		t.Fatalf("menu=%d list=%d detail=%d want 12/72/36 (10/60/30)", pw.Menu, pw.List, pw.Detail)
+	}
 }
 
 func TestLayoutWidthsSinglePane(t *testing.T) {
@@ -30,6 +33,20 @@ func TestLayoutWidthsTwoPanes(t *testing.T) {
 	if pw.Menu+pw.Detail != 80 {
 		t.Fatalf("sum=%d want 80", pw.Menu+pw.Detail)
 	}
+	if pw.Menu != 20 || pw.Detail != 60 {
+		t.Fatalf("menu=%d detail=%d want 20/60 (10/30 of pair)", pw.Menu, pw.Detail)
+	}
+}
+
+func TestDetailPaneXRangeSkipsHidden(t *testing.T) {
+	pw := PaneWidths{
+		Menu: 20, List: 60, Detail: 0,
+		Visibility: PaneVisibility{Menu: true, List: true, Detail: false},
+	}
+	start, end := DetailPaneXRange(pw)
+	if start != 0 || end != 0 {
+		t.Fatalf("hidden detail should have empty range, got %d..%d", start, end)
+	}
 }
 
 func TestNextVisibleFocusSkipsHidden(t *testing.T) {
diff --git a/cmd/office/ui/scroll.go b/cmd/office/ui/scroll.go
index 19cd0ec..d078b5a 100644
--- a/cmd/office/ui/scroll.go
+++ b/cmd/office/ui/scroll.go
@@ -11,7 +11,7 @@ func (m *Model) scrollFocusedPane(key string) bool {
 		return scrollViewport(&m.menuVP, key)
 	case model.FocusList:
 		switch key {
-		case "pgdown", "pgdn", "f", "ctrl+d":
+		case "pgdown", "pgdn", "ctrl+d":
 			m.listTable.PageScroll(1)
 			return true
 		case "pgup", "b", "ctrl+u":
@@ -20,10 +20,10 @@ func (m *Model) scrollFocusedPane(key string) bool {
 		}
 		return false
 	case model.FocusPreview:
-		if m.detail.Zone() != detailZoneContent || m.detail.mode != detailDocument {
+		if m.detail.Zone() != detailZoneContent {
 			return false
 		}
-		return scrollViewport(&m.detail.docVP, key)
+		return m.detail.ScrollDocument(key)
 	default:
 		return false
 	}
@@ -50,7 +50,13 @@ func (m *Model) paneInnerWidth(outer int) int {
 
 func scrollViewport(vp *viewport.Model, key string) bool {
 	switch key {
-	case "pgdown", "pgdn", "f", "ctrl+d":
+	case "up", "k":
+		vp.LineUp(1)
+		return true
+	case "down", "j":
+		vp.LineDown(1)
+		return true
+	case "pgdown", "pgdn", "ctrl+d":
 		vp.ViewDown()
 		return true
 	case "pgup", "b", "ctrl+u":
diff --git a/cmd/office/ui/scrollbar.go b/cmd/office/ui/scrollbar.go
new file mode 100644
index 0000000..e808cba
--- /dev/null
+++ b/cmd/office/ui/scrollbar.go
@@ -0,0 +1,76 @@
+package ui
+
+import (
+	"strings"
+
+	"github.com/charmbracelet/lipgloss"
+	"github.com/mattn/go-runewidth"
+)
+
+// ScrollbarMetrics computes thumb position for a vertical scrollbar.
+func ScrollbarMetrics(totalLines, viewportHeight, yOffset int) (show bool, thumbStart, thumbEnd int) {
+	if totalLines <= viewportHeight || viewportHeight < 1 {
+		return false, 0, 0
+	}
+	maxOff := totalLines - viewportHeight
+	if maxOff < 0 {
+		maxOff = 0
+	}
+	thumbSize := viewportHeight * viewportHeight / totalLines
+	if thumbSize < 1 {
+		thumbSize = 1
+	}
+	if thumbSize > viewportHeight {
+		thumbSize = viewportHeight
+	}
+	travel := viewportHeight - thumbSize
+	thumbStart = 0
+	if maxOff > 0 {
+		thumbStart = yOffset * travel / maxOff
+	}
+	return true, thumbStart, thumbStart + thumbSize
+}
+
+// ApplyVerticalScrollbar draws a 1-column scrollbar on the right when content overflows.
+func ApplyVerticalScrollbar(view string, width, height, totalLines, yOffset int) string {
+	show, thumbStart, thumbEnd := ScrollbarMetrics(totalLines, height, yOffset)
+	if !show || width < 2 {
+		return view
+	}
+	contentWidth := width - 1
+	lines := strings.Split(view, "\n")
+	for len(lines) < height {
+		lines = append(lines, "")
+	}
+	if len(lines) > height {
+		lines = lines[:height]
+	}
+	track := lipgloss.NewStyle().Foreground(lipgloss.Color("238"))
+	thumb := lipgloss.NewStyle().Foreground(lipgloss.Color("245"))
+	out := make([]string, height)
+	for row := 0; row < height; row++ {
+		line := padDisplayWidth(lines[row], contentWidth)
+		ch := "│"
+		style := track
+		if row >= thumbStart && row < thumbEnd {
+			ch = "█"
+			style = thumb
+		}
+		out[row] = line + style.Render(ch)
+	}
+	return strings.Join(out, "\n")
+}
+
+func padDisplayWidth(line string, width int) string {
+	if width < 1 {
+		return ""
+	}
+	w := runewidth.StringWidth(line)
+	if w > width {
+		return runewidth.Truncate(line, width, "")
+	}
+	if w < width {
+		line += strings.Repeat(" ", width-w)
+	}
+	return line
+}
diff --git a/cmd/office/ui/scrollbar_test.go b/cmd/office/ui/scrollbar_test.go
new file mode 100644
index 0000000..87e37c0
--- /dev/null
+++ b/cmd/office/ui/scrollbar_test.go
@@ -0,0 +1,32 @@
+package ui
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestScrollbarMetricsHiddenWhenFits(t *testing.T) {
+	show, _, _ := ScrollbarMetrics(5, 10, 0)
+	if show {
+		t.Fatal("expected no scrollbar when content fits")
+	}
+}
+
+func TestScrollbarMetricsVisibleWhenOverflow(t *testing.T) {
+	show, start, end := ScrollbarMetrics(100, 10, 50)
+	if !show || end <= start {
+		t.Fatalf("expected thumb, got %d..%d", start, end)
+	}
+}
+
+func TestApplyVerticalScrollbarAddsColumn(t *testing.T) {
+	view := "line1\nline2\nline3"
+	out := ApplyVerticalScrollbar(view, 12, 3, 10, 0)
+	lines := strings.Split(out, "\n")
+	if len(lines) != 3 {
+		t.Fatalf("lines=%d", len(lines))
+	}
+	if !strings.HasSuffix(lines[0], "█") && !strings.HasSuffix(lines[0], "│") {
+		t.Fatalf("expected scrollbar glyph: %q", lines[0])
+	}
+}
diff --git a/cmd/office/ui/table.go b/cmd/office/ui/table.go
index 77442d4..edcbbe6 100644
--- a/cmd/office/ui/table.go
+++ b/cmd/office/ui/table.go
@@ -53,6 +53,7 @@ type DataTable struct {
 	sortAsc   bool
 	focused   bool
 	ready     bool
+	loadingMore bool
 	width     int
 	height    int
 	viewport  viewport.Model
@@ -127,6 +128,62 @@ func (t *DataTable) ItemIndex() int {
 	return t.order[t.cursorRow]
 }
 
+// CursorRow is the visual row index in the current table order.
+func (t DataTable) CursorRow() int {
+	return t.cursorRow
+}
+
+// Items returns the backing slice (after appends).
+func (t DataTable) Items() []model.Item {
+	return t.items
+}
+
+// NearEnd reports whether the cursor is within threshold rows of the last row.
+func (t DataTable) NearEnd(threshold int) bool {
+	if !t.ready || len(t.order) == 0 {
+		return false
+	}
+	return t.cursorRow >= len(t.order)-threshold
+}
+
+func (t *DataTable) SetLoadingMore(on bool) {
+	t.loadingMore = on
+}
+
+// AppendItems adds new rows, skipping duplicate IDs. Returns how many were added.
+func (t *DataTable) AppendItems(items []model.Item) int {
+	if !t.ready || len(items) == 0 {
+		return 0
+	}
+	seen := make(map[string]struct{}, len(t.items))
+	for _, it := range t.items {
+		if it.ID != "" {
+			seen[it.ID] = struct{}{}
+		}
+	}
+	added := 0
+	for _, it := range items {
+		if it.ID != "" {
+			if _, ok := seen[it.ID]; ok {
+				continue
+			}
+			seen[it.ID] = struct{}{}
+		}
+		idx := len(t.items)
+		t.items = append(t.items, it)
+		t.order = append(t.order, idx)
+		added++
+	}
+	if added > 0 {
+		if t.sortCol >= 0 {
+			t.applySort()
+		}
+		t.clampCursor()
+		t.refreshViewport()
+	}
+	return added
+}
+
 func (t *DataTable) MoveRow(delta int) {
 	if !t.ready || len(t.order) == 0 {
 		return
@@ -190,7 +247,7 @@ func (t *DataTable) Update(msg tea.Msg) tea.Cmd {
 	switch msg := msg.(type) {
 	case tea.KeyMsg:
 		switch msg.String() {
-		case "pgdown", "pgdn", "f", "ctrl+d":
+		case "pgdown", "pgdn", "ctrl+d":
 			t.viewport.ViewDown()
 		case "pgup", "b", "ctrl+u":
 			t.viewport.ViewUp()
@@ -208,6 +265,9 @@ func (t DataTable) View() string {
 		return "List\n\nSelect a leaf node in the tree\n(marked with •) and press Enter.\n"
 	}
 	title := t.styles.title.Render(fmt.Sprintf("%s (%d)", t.spec.Subject, len(t.items)))
+	if t.loadingMore {
+		title += t.styles.help.Render("  …")
+	}
 	sortHint := ""
 	if t.sortCol >= 0 && t.sortCol < len(t.columns) {
 		dir := "▲"
@@ -217,7 +277,13 @@ func (t DataTable) View() string {
 		sortHint = t.styles.help.Render(fmt.Sprintf("  sort: %s %s", t.columns[t.sortCol].Title, dir))
 	}
 	header := t.renderHeader()
-	body := t.viewport.View()
+	body := ApplyVerticalScrollbar(
+		t.viewport.View(),
+		t.viewport.Width,
+		t.viewport.Height,
+		t.viewport.TotalLineCount(),
+		t.viewport.YOffset,
+	)
 	content := lipgloss.JoinVertical(lipgloss.Left, title+sortHint, header, body)
 	return lipgloss.NewStyle().Width(t.width).Render(content)
 }
@@ -297,7 +363,7 @@ func distributeColumnWidths(minSum, total int, indices []int, cols []model.Table
 	flex := make([]int, 0, len(indices))
 	for _, i := range indices {
 		switch cols[i].Key {
-		case "title", "subtitle", "description", "displayName", "primaryEmail", "from", "to", "tasks":
+		case "title", "subtitle", "description", "displayName", "primaryEmail", "from", "to", "tasks", "type":
 			flex = append(flex, i)
 		}
 	}
@@ -332,6 +398,19 @@ func fixColumnWidthSum(widths map[int]int, indices []int, total int) {
 	}
 }
 
+const cellHPadding = 2 // lipgloss Padding(0, 1) on each side
+
+func truncateCellText(text string, colWidth int) string {
+	inner := colWidth - cellHPadding
+	if inner < 1 {
+		inner = 1
+	}
+	if runewidth.StringWidth(text) <= inner {
+		return text
+	}
+	return runewidth.Truncate(text, inner, "...")
+}
+
 func (t *DataTable) renderHeader() string {
 	indices, widths := t.visibleLayout()
 	cells := make([]string, 0, len(indices))
@@ -346,7 +425,7 @@ func (t *DataTable) renderHeader() string {
 				title += " ▼"
 			}
 		}
-		text := runewidth.Truncate(title, w, "…")
+		text := truncateCellText(title, w)
 		style := t.styles.header
 		if t.focused && colIdx == t.cursorCol {
 			style = t.styles.headerSort
@@ -371,39 +450,70 @@ func (t *DataTable) refreshViewport() {
 func (t *DataTable) renderRow(row int) string {
 	item := t.items[t.order[row]]
 	selected := item.Selected
+	fullRow := row == t.cursorRow || selected
 	indices, widths := t.visibleLayout()
 	cells := make([]string, 0, len(indices))
 	for _, colIdx := range indices {
 		col := t.columns[colIdx]
 		w := widths[colIdx]
-		text := runewidth.Truncate(model.CellText(item, col.Key), w, "…")
-		cells = append(cells, t.styleCell(row, colIdx, selected, text, w))
+		raw := strings.TrimSpace(model.CellText(item, col.Key))
+		text := raw
+		if !fullRow {
+			text = truncateCellText(raw, w)
+		}
+		cells = append(cells, t.styleCell(row, colIdx, col.Key, selected, item, text, w, fullRow))
 	}
 	return lipgloss.JoinHorizontal(lipgloss.Left, cells...)
 }
 
-func (t *DataTable) styleCell(row, col int, selected bool, text string, width int) string {
-	base := t.styles.cell.Width(width).MaxWidth(width)
+func applyCellWidth(s lipgloss.Style, width int, full bool) lipgloss.Style {
+	if full {
+		return s
+	}
+	return s.Width(width).MaxWidth(width)
+}
+
+func (t *DataTable) styleCell(row, col int, colKey string, selected bool, item model.Item, text string, width int, fullWidth bool) string {
 	isRow := row == t.cursorRow
 	isCol := col == t.cursorCol
 	isCell := t.focused && isRow && isCol
 
+	var base lipgloss.Style
 	switch {
 	case selected && isCell:
-		return t.styles.cellSelect.Width(width).MaxWidth(width).Render(text)
+		base = t.styles.cellSelect
 	case selected && isRow:
-		return t.styles.rowSelect.Width(width).MaxWidth(width).Render(text)
+		base = t.styles.rowSelect
 	case selected:
-		return t.styles.rowSelect.Width(width).MaxWidth(width).Render(text)
+		base = t.styles.rowSelect
 	case isCell:
-		return t.styles.cellActive.Width(width).MaxWidth(width).Render(text)
+		base = t.styles.cellActive
 	case t.focused && isRow:
-		return t.styles.rowActive.Width(width).MaxWidth(width).Render(text)
+		base = t.styles.rowActive
 	case t.focused && isCol:
-		return t.styles.colActive.Width(width).MaxWidth(width).Render(text)
+		base = t.styles.colActive
 	default:
-		return base.Render(text)
+		base = t.styles.cell
 	}
+	base = t.applyProjectRowStyle(base, item, colKey)
+	return applyCellWidth(base, width, fullWidth).Render(text)
+}
+
+func (t *DataTable) applyProjectRowStyle(base lipgloss.Style, item model.Item, colKey string) lipgloss.Style {
+	if t.spec.Subject != model.SubjectProjects {
+		return base
+	}
+	open := model.ProjectIsOpen(item.Raw)
+	if colKey == "status" {
+		if open {
+			return base.Foreground(lipgloss.Color("42")).Bold(true)
+		}
+		return base.Foreground(lipgloss.Color("245"))
+	}
+	if open {
+		return base.Background(lipgloss.Color("22")).Foreground(lipgloss.Color("255"))
+	}
+	return base.Background(lipgloss.Color("238")).Foreground(lipgloss.Color("252"))
 }
 
 func (t *DataTable) ensureColVisible() {
diff --git a/cmd/office/ui/table_append_test.go b/cmd/office/ui/table_append_test.go
new file mode 100644
index 0000000..c8f1521
--- /dev/null
+++ b/cmd/office/ui/table_append_test.go
@@ -0,0 +1,40 @@
+package ui
+
+import (
+	"testing"
+
+	"github.com/eslider/go-onlyoffice/cmd/office/model"
+)
+
+func TestDataTableAppendItemsDedupes(t *testing.T) {
+	tbl := newDataTable()
+	tbl.SetSize(40, 10)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectMailInbox}, []model.Item{
+		{ID: "1", Title: "A", Kind: model.KindMail},
+	})
+	added := tbl.AppendItems([]model.Item{
+		{ID: "1", Title: "dup", Kind: model.KindMail},
+		{ID: "2", Title: "B", Kind: model.KindMail},
+	})
+	if added != 1 || len(tbl.Items()) != 2 {
+		t.Fatalf("added=%d len=%d", added, len(tbl.Items()))
+	}
+}
+
+func TestDataTableNearEnd(t *testing.T) {
+	tbl := newDataTable()
+	tbl.SetSize(40, 10)
+	items := make([]model.Item, 10)
+	for i := range items {
+		items[i] = model.Item{ID: string(rune('0' + i)), Title: "x", Kind: model.KindMail}
+	}
+	tbl.SetData(model.ListSpec{Subject: model.SubjectMailInbox}, items)
+	tbl.cursorRow = 7
+	if !tbl.NearEnd(3) {
+		t.Fatal("expected near end")
+	}
+	tbl.cursorRow = 0
+	if tbl.NearEnd(3) {
+		t.Fatal("expected not near end")
+	}
+}
diff --git a/cmd/office/ui/table_test.go b/cmd/office/ui/table_test.go
index ca8d8a1..4394448 100644
--- a/cmd/office/ui/table_test.go
+++ b/cmd/office/ui/table_test.go
@@ -5,6 +5,7 @@ import (
 	"testing"
 
 	"github.com/eslider/go-onlyoffice/cmd/office/model"
+	"github.com/mattn/go-runewidth"
 )
 
 func sampleItems() []model.Item {
@@ -32,7 +33,7 @@ func TestDataTableMoveColScrolls(t *testing.T) {
 	items[0] = model.Item{ID: "1", Title: "One", Raw: map[string]any{
 		"alpha": "a", "beta": "b", "gamma": "c", "delta": "d",
 	}}
-	tbl.SetData(model.ListSpec{Subject: model.SubjectTasks}, items)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectContacts}, items)
 	last := len(tbl.columns) - 1
 	tbl.cursorCol = last
 	tbl.ensureColVisible()
@@ -88,6 +89,55 @@ func TestDistributeColumnWidthsFillsTotal(t *testing.T) {
 	}
 }
 
+func TestTruncateCellText(t *testing.T) {
+	long := strings.Repeat("x", 40)
+	got := truncateCellText(long, 10)
+	if runewidth.StringWidth(got) > 10 {
+		t.Fatalf("truncated width=%d want <=10", runewidth.StringWidth(got))
+	}
+	if !strings.HasSuffix(got, "...") {
+		t.Fatalf("expected ellipsis suffix, got %q", got)
+	}
+}
+
+func TestDataTableTruncatesNonSelectedRows(t *testing.T) {
+	long := strings.Repeat("A", 60)
+	items := []model.Item{
+		{ID: "1", Title: "Short"},
+		{ID: "2", Title: long},
+	}
+	tbl := newDataTable()
+	tbl.SetSize(50, 10)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectTasks}, items)
+	tbl.cursorRow = 0
+
+	if strings.Contains(tbl.renderRow(1), long) {
+		t.Fatal("non-cursor row should truncate long title")
+	}
+
+	tbl.cursorRow = 1
+	if !strings.Contains(tbl.renderRow(1), long) {
+		t.Fatal("cursor row should show full title")
+	}
+}
+
+func TestDataTableShowsFullTextWhenSpaceSelected(t *testing.T) {
+	long := strings.Repeat("B", 60)
+	items := []model.Item{
+		{ID: "1", Title: "Short"},
+		{ID: "2", Title: long, Selected: true},
+	}
+	tbl := newDataTable()
+	tbl.SetSize(50, 10)
+	tbl.SetData(model.ListSpec{Subject: model.SubjectTasks}, items)
+	tbl.cursorRow = 0
+
+	rowSelected := tbl.renderRow(1)
+	if !strings.Contains(rowSelected, long) {
+		t.Fatal("space-selected row should show full title")
+	}
+}
+
 func indexOfColumn(tbl DataTable, key string) int {
 	for i, c := range tbl.columns {
 		if c.Key == key {
diff --git a/projects.go b/projects.go
index 1b822f3..8e1b0cf 100644
--- a/projects.go
+++ b/projects.go
@@ -204,3 +204,15 @@ func (c *Client) UpdateProject(req ProjectUpdateRequest) (*Project, error) {
 			Response *Project `json:"response"`
 		}{p})
 }
+
+// UpdateProjectStatus sets project lifecycle status (open, paused, closed).
+func (c *Client) UpdateProjectStatus(id int, status string) (*Project, error) {
+	p := &Project{}
+	return p, c.Query(Request{
+		Uri:    fmt.Sprintf("/api/2.0/project/%d/status", id),
+		Method: "PUT",
+		Body:   map[string]string{"status": status},
+	}, &struct {
+		Response *Project `json:"response"`
+	}{p})
+}