style(tui): adjust monitor/detail split to 60/40

Gives monitors panel more room for columns while detail sidebar
content stacks vertically and doesn't need the extra width.

internal/tui/panel.go

@@ -6,6 +6,85 @@ import (
 	"github.com/charmbracelet/lipgloss"
 )
 
+func (m Model) titledPanelH(title, content, footer string, width, height, scrollOffset int, focused bool) string {
+	if height <= 0 {
+		return m.titledPanel(title, content, width, focused)
+	}
+
+	borderColor := m.theme.Border
+	titleColor := m.theme.Muted
+	if focused {
+		borderColor = m.theme.Accent
+		titleColor = m.theme.Accent
+	}
+
+	bc := lipgloss.NewStyle().Foreground(borderColor)
+	tc := lipgloss.NewStyle().Foreground(titleColor).Bold(true)
+
+	innerW := width - 2
+	if innerW < 10 {
+		innerW = 10
+	}
+
+	titleRendered := tc.Render(" " + title + " ")
+	titleLen := len([]rune(title)) + 2
+	fillLen := innerW - titleLen - 1
+	if fillLen < 0 {
+		fillLen = 0
+	}
+
+	top := bc.Render("╭─") + titleRendered + bc.Render(strings.Repeat("─", fillLen)+"╮")
+	bottom := bc.Render("╰" + strings.Repeat("─", innerW) + "╯")
+
+	contentStyle := lipgloss.NewStyle().Width(innerW).MaxWidth(innerW)
+	inner := contentStyle.Render(content)
+	contentLines := strings.Split(inner, "\n")
+
+	var footerLines []string
+	if footer != "" {
+		footerRendered := contentStyle.Render(footer)
+		footerLines = strings.Split(footerRendered, "\n")
+	}
+
+	bodyH := height - 2 - len(footerLines)
+	if bodyH < 1 {
+		bodyH = 1
+	}
+
+	if scrollOffset > len(contentLines)-bodyH {
+		scrollOffset = len(contentLines) - bodyH
+	}
+	if scrollOffset < 0 {
+		scrollOffset = 0
+	}
+
+	end := scrollOffset + bodyH
+	if end > len(contentLines) {
+		end = len(contentLines)
+	}
+	visible := contentLines[scrollOffset:end]
+
+	borderLine := func(line string) string {
+		return bc.Render("│") + line + strings.Repeat(" ", max(0, innerW-lipgloss.Width(line))) + bc.Render("│")
+	}
+	emptyLine := borderLine(strings.Repeat(" ", innerW))
+
+	var lines []string
+	lines = append(lines, top)
+	for _, line := range visible {
+		lines = append(lines, borderLine(line))
+	}
+	for len(lines) < height-1-len(footerLines) {
+		lines = append(lines, emptyLine)
+	}
+	for _, line := range footerLines {
+		lines = append(lines, borderLine(line))
+	}
+	lines = append(lines, bottom)
+
+	return strings.Join(lines, "\n")
+}
+
 func (m Model) titledPanel(title, content string, width int, focused bool) string {
 	borderColor := m.theme.Border
 	titleColor := m.theme.Muted

internal/tui/tui.go

@@ -165,6 +165,7 @@ type Model struct {
 	slaSiteName        string
 	slaSiteID          int
 	slaPeriodIdx       int
+	detailScrollOffset int
 
 	isAdmin bool
 	zones   *zone.Manager

internal/tui/update.go

@@ -298,6 +298,18 @@ func (m *Model) handleMouse(msg tea.MouseMsg) (tea.Model, tea.Cmd) {
 		return m, nil
 	}
 
+	if m.focusedPanel == panelDetail && m.detailOpen {
+		if msg.Button == tea.MouseButtonWheelUp {
+			m.detailScrollOffset -= 3
+		} else {
+			m.detailScrollOffset += 3
+		}
+		if m.detailScrollOffset < 0 {
+			m.detailScrollOffset = 0
+		}
+		return m, nil
+	}
+
 	listLen := m.currentListLen()
 	if msg.Button == tea.MouseButtonWheelUp {
 		if m.cursor > 0 {
@@ -588,6 +600,13 @@ func (m *Model) handleDashboardKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 		}
 		m.recalcLayout()
 	case "up", "k":
+		if m.focusedPanel == panelDetail && m.detailOpen {
+			m.detailScrollOffset--
+			if m.detailScrollOffset < 0 {
+				m.detailScrollOffset = 0
+			}
+			return m, nil
+		}
 		if m.focusedPanel == panelMaint {
 			m.scrollMaintCursor(-1)
 			return m, nil
@@ -604,10 +623,15 @@ func (m *Model) handleDashboardKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			m.syncSelectedID()
 			if m.detailOpen && m.cursor < len(m.sites) {
 				m.detailMode = detailDefault
+				m.detailScrollOffset = 0
 				return m, m.loadDetailCmd(m.sites[m.cursor].ID)
 			}
 		}
 	case "down", "j":
+		if m.focusedPanel == panelDetail && m.detailOpen {
+			m.detailScrollOffset++
+			return m, nil
+		}
 		if m.focusedPanel == panelMaint {
 			m.scrollMaintCursor(1)
 			return m, nil
@@ -625,6 +649,7 @@ func (m *Model) handleDashboardKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			m.syncSelectedID()
 			if m.detailOpen && m.cursor < len(m.sites) {
 				m.detailMode = detailDefault
+				m.detailScrollOffset = 0
 				return m, m.loadDetailCmd(m.sites[m.cursor].ID)
 			}
 		}
@@ -652,6 +677,7 @@ func (m *Model) handleDashboardKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 		if len(m.sites) > 0 {
 			m.detailOpen = !m.detailOpen
 			m.detailMode = detailDefault
+			m.detailScrollOffset = 0
 			m.recalcLayout()
 			st := m.store
 			ctx := m.ctx
@@ -702,9 +728,11 @@ func (m *Model) handleDashboardKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			m.focusedPanel = panelMonitors
 		} else if m.detailOpen && m.detailMode != detailDefault {
 			m.detailMode = detailDefault
+			m.detailScrollOffset = 0
 		} else if m.detailOpen {
 			m.detailOpen = false
 			m.detailMode = detailDefault
+			m.detailScrollOffset = 0
 			m.recalcLayout()
 			st := m.store
 			ctx := m.ctx
@@ -719,6 +747,7 @@ func (m *Model) handleDashboardKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			m.historySiteID = site.ID
 			m.historyChanges = nil
 			m.detailMode = detailHistory
+			m.detailScrollOffset = 0
 			return m, m.loadHistoryCmd(site.ID)
 		}
 	case "s":
@@ -728,6 +757,7 @@ func (m *Model) handleDashboardKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			m.slaSiteID = site.ID
 			m.slaPeriodIdx = 2
 			m.detailMode = detailSLA
+			m.detailScrollOffset = 0
 			return m, m.loadSLACmd(site.ID, m.slaPeriodIdx)
 		}
 	case "1", "2", "3", "4":
@@ -735,6 +765,7 @@ func (m *Model) handleDashboardKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			idx := int(msg.String()[0]-'0') - 1
 			if idx >= 0 && idx < len(slaPeriods) {
 				m.slaPeriodIdx = idx
+				m.detailScrollOffset = 0
 				return m, m.loadSLACmd(m.slaSiteID, idx)
 			}
 		}
@@ -860,6 +891,7 @@ func (m *Model) handleClick(msg tea.MouseMsg) (tea.Model, tea.Cmd) {
 			m.syncSelectedID()
 			m.focusedPanel = panelMonitors
 			if m.detailOpen {
+				m.detailScrollOffset = 0
 				return m, m.loadDetailCmd(m.sites[m.cursor].ID)
 			}
 			return m, nil

internal/tui/update_test.go

@@ -142,7 +142,7 @@ func TestDetailLoad_CachesAndViewDoesNoIO(t *testing.T) {
 	}
 
 	for i := 0; i < 3; i++ {
-		_ = m.viewDetailInline(80)
+		_ = m.viewDetailInline(80, 30)
 	}
 	if ms.stateChangeCalls != 1 {
 		t.Errorf("View performed DB IO: store hit %d times (want 1, from the Cmd only)", ms.stateChangeCalls)

internal/tui/view_dashboard.go

@@ -161,7 +161,7 @@ func (m Model) viewMonitorsLayout() string {
 	}
 	remaining := availW - maintW
 	if showDetail {
-		monW = remaining * 45 / 100
+		monW = remaining * 60 / 100
 		detailW = remaining - monW
 	} else {
 		monW = remaining
@@ -190,8 +190,10 @@ func (m Model) viewMonitorsLayout() string {
 		case detailHistory:
 			title = "History · " + title
 		}
-		detail := m.viewDetailInline(detailW - 2)
+		monHeight := lipgloss.Height(monPanel)
-		detailPanel := m.zones.Mark("panel-detail", m.titledPanel(title, detail, detailW, m.focusedPanel == panelDetail))
+		detail := m.viewDetailInline(detailW-2, monHeight)
+		footer := m.detailFooter(detailW - 2)
+		detailPanel := m.zones.Mark("panel-detail", m.titledPanelH(title, detail, footer, detailW, monHeight, m.detailScrollOffset, m.focusedPanel == panelDetail))
 		topParts = append(topParts, detailPanel)
 	}
 

internal/tui/view_detail_inline.go

@@ -10,23 +10,23 @@ import (
 	"github.com/charmbracelet/lipgloss"
 )
 
-func (m Model) viewDetailInline(width int) string {
+func (m Model) viewDetailInline(width, height int) string {
 	if m.cursor >= len(m.sites) {
 		return ""
 	}
 	switch m.detailMode {
 	case detailSLA:
-		return m.viewSLASidebar(width)
+		return m.viewSLASidebar(width, height)
 	case detailHistory:
-		return m.viewHistorySidebar(width)
+		return m.viewHistorySidebar(width, height)
 	default:
 		site := m.sites[m.cursor]
 		hist, _ := m.engine.GetHistory(site.ID)
-		return m.viewDetailSidebar(site, hist, width)
+		return m.viewDetailSidebar(site, hist, width, height)
 	}
 }
 
-func (m Model) viewDetailSidebar(site models.Site, hist monitor.SiteHistory, width int) string {
+func (m Model) viewDetailSidebar(site models.Site, hist monitor.SiteHistory, width, _ int) string {
 	dot := m.st.subtleStyle.Render(" · ")
 	label := m.st.subtleStyle
 	var b strings.Builder
@@ -143,8 +143,6 @@ func (m Model) viewDetailSidebar(site models.Site, hist monitor.SiteHistory, wid
 		b.WriteString("  " + label.Render("No state changes") + "\n")
 	}
 
-	b.WriteString("\n  " + m.detailKeys() + "\n")
-
 	return lipgloss.NewStyle().Width(width).MaxWidth(width).Render(b.String())
 }
 
@@ -212,8 +210,28 @@ func (m Model) detailTypeLine(site models.Site) []string {
 	return parts
 }
 
-func (m Model) detailKeys() string {
+func (m Model) detailFooter(width int) string {
-	return m.st.subtleStyle.Render("[e] Edit  [h] History  [s] SLA  [Esc] Back")
+	dot := m.st.subtleStyle.Render(" · ")
+	var parts []string
+
+	switch m.detailMode {
+	case detailSLA:
+		for i, p := range slaPeriods {
+			if i == m.slaPeriodIdx {
+				parts = append(parts, m.st.titleStyle.Render(p.key)+" "+m.st.titleStyle.Render(p.label))
+			} else {
+				parts = append(parts, m.hotkey(p.key, p.label))
+			}
+		}
+		parts = append(parts, m.hotkey("Esc", "Back"))
+	case detailHistory:
+		parts = append(parts, m.hotkey("Esc", "Back"))
+	default:
+		parts = append(parts, m.hotkey("e", "Edit"), m.hotkey("h", "History"), m.hotkey("s", "SLA"), m.hotkey("Esc", "Back"))
+	}
+
+	content := "  " + strings.Join(parts, dot)
+	return lipgloss.NewStyle().Width(width).MaxWidth(width).Render(content)
 }
 
 func (m Model) fmtStatusWord(status string) string {
@@ -235,7 +253,7 @@ func (m Model) fmtStatusWord(status string) string {
 	}
 }
 
-func (m Model) viewSLASidebar(width int) string {
+func (m Model) viewSLASidebar(width, _ int) string {
 	var b strings.Builder
 	label := m.st.subtleStyle
 	innerW := width - 4
@@ -292,24 +310,10 @@ func (m Model) viewSLASidebar(width int) string {
 		}
 	}
 
-	b.WriteString("\n")
-
-	var keys []string
-	for i, p := range slaPeriods {
-		k := fmt.Sprintf("[%s] %s", p.key, p.label)
-		if i == m.slaPeriodIdx {
-			keys = append(keys, m.st.titleStyle.Render(k))
-		} else {
-			keys = append(keys, label.Render(k))
-		}
-	}
-	b.WriteString("  " + strings.Join(keys, " ") + "\n")
-	b.WriteString("  " + label.Render("[Esc] Back") + "\n")
-
 	return lipgloss.NewStyle().Width(width).MaxWidth(width).Render(b.String())
 }
 
-func (m Model) viewHistorySidebar(width int) string {
+func (m Model) viewHistorySidebar(width, _ int) string {
 	var b strings.Builder
 	label := m.st.subtleStyle
 	innerW := width - 4
@@ -368,7 +372,6 @@ func (m Model) viewHistorySidebar(width int) string {
 		statParts = append(statParts, "avg "+fmtDuration(avg))
 	}
 	b.WriteString("  " + label.Render(strings.Join(statParts, " │ ")) + "\n")
-	b.WriteString("  " + label.Render("[Esc] Back") + "\n")
 
 	return lipgloss.NewStyle().Width(width).MaxWidth(width).Render(b.String())
 }