diff --git a/Andromida/App/Models/InsightCard.swift b/Andromida/App/Models/InsightCard.swift
index 31f5d06..d2f6209 100644
--- a/Andromida/App/Models/InsightCard.swift
+++ b/Andromida/App/Models/InsightCard.swift
@@ -1,8 +1,26 @@
 import Foundation
 
+/// Identifies each type of insight card for ordering and identification.
+enum InsightCardType: String, CaseIterable, Codable {
+    case active
+    case streak
+    case habitsToday
+    case completion
+    case daysActive
+    case sevenDayAvg
+    case totalCheckIns
+    case bestRitual
+    
+    /// Default order for cards (prioritizes motivation → action → context → history)
+    static var defaultOrder: [InsightCardType] {
+        [.streak, .completion, .habitsToday, .sevenDayAvg, .active, .daysActive, .bestRitual, .totalCheckIns]
+    }
+}
+
 /// A single insight metric displayed on the Insights tab.
 struct InsightCard: Identifiable {
     let id: UUID
+    let type: InsightCardType
     let title: String
     let value: String
     let caption: String           // Short description shown on card
@@ -13,6 +31,7 @@ struct InsightCard: Identifiable {
 
     init(
         id: UUID = UUID(),
+        type: InsightCardType,
         title: String,
         value: String,
         caption: String,
@@ -22,6 +41,7 @@ struct InsightCard: Identifiable {
         trendData: [TrendDataPoint]? = nil
     ) {
         self.id = id
+        self.type = type
         self.title = title
         self.value = value
         self.caption = caption
diff --git a/Andromida/App/State/RitualStore.swift b/Andromida/App/State/RitualStore.swift
index 70d3574..79ca354 100644
--- a/Andromida/App/State/RitualStore.swift
+++ b/Andromida/App/State/RitualStore.swift
@@ -479,8 +479,10 @@ final class RitualStore: RitualStoreProviding {
             return best
         }()
 
-        return [
-            InsightCard(
+        // Build cards dictionary by type
+        let cardsByType: [InsightCardType: InsightCard] = [
+            .active: InsightCard(
+                type: .active,
                 title: String(localized: "Active"),
                 value: "\(activeRitualCount)",
                 caption: String(localized: "In progress now"),
@@ -488,7 +490,8 @@ final class RitualStore: RitualStoreProviding {
                 symbolName: "sparkles",
                 breakdown: currentRituals.map { BreakdownItem(label: $0.title, value: $0.theme) }
             ),
-            InsightCard(
+            .streak: InsightCard(
+                type: .streak,
                 title: String(localized: "Streak"),
                 value: "\(current)",
                 caption: String(localized: "Consecutive perfect days"),
@@ -496,7 +499,8 @@ final class RitualStore: RitualStoreProviding {
                 symbolName: "flame.fill",
                 breakdown: streakBreakdown
             ),
-            InsightCard(
+            .habitsToday: InsightCard(
+                type: .habitsToday,
                 title: String(localized: "Habits today"),
                 value: "\(completedToday)",
                 caption: String(localized: "Completed today"),
@@ -504,7 +508,8 @@ final class RitualStore: RitualStoreProviding {
                 symbolName: "checkmark.circle.fill",
                 breakdown: habitsBreakdown
             ),
-            InsightCard(
+            .completion: InsightCard(
+                type: .completion,
                 title: String(localized: "Completion"),
                 value: "\(completionRateValue)%",
                 caption: String(localized: "Today's progress"),
@@ -513,7 +518,8 @@ final class RitualStore: RitualStoreProviding {
                 breakdown: trendBreakdown,
                 trendData: trendData
             ),
-            InsightCard(
+            .daysActive: InsightCard(
+                type: .daysActive,
                 title: String(localized: "Days Active"),
                 value: "\(daysActiveCount)",
                 caption: String(localized: "Days you checked in"),
@@ -521,7 +527,8 @@ final class RitualStore: RitualStoreProviding {
                 symbolName: "calendar",
                 breakdown: daysActiveBreakdown()
             ),
-            InsightCard(
+            .sevenDayAvg: InsightCard(
+                type: .sevenDayAvg,
                 title: String(localized: "7-Day Avg"),
                 value: "\(weeklyAvg)%",
                 caption: String(localized: "Weekly average"),
@@ -530,16 +537,18 @@ final class RitualStore: RitualStoreProviding {
                 breakdown: trendBreakdown,
                 trendData: trendData
             ),
-            InsightCard(
+            .totalCheckIns: InsightCard(
+                type: .totalCheckIns,
                 title: String(localized: "Total Check-ins"),
                 value: "\(totalHabitsAllTime)",
                 caption: String(localized: "All-time habits completed"),
                 explanation: String(localized: "The total number of habit check-ins you've made since you started using Rituals. Every check-in counts toward building lasting change."),
                 symbolName: "checkmark.seal.fill"
             ),
-            {
+            .bestRitual: {
                 if let best = bestRitualInfo {
                     return InsightCard(
+                        type: .bestRitual,
                         title: String(localized: "Best Ritual"),
                         value: "\(best.rate)%",
                         caption: best.title,
@@ -548,6 +557,7 @@ final class RitualStore: RitualStoreProviding {
                     )
                 } else {
                     return InsightCard(
+                        type: .bestRitual,
                         title: String(localized: "Best Ritual"),
                         value: "—",
                         caption: String(localized: "No active rituals"),
@@ -557,6 +567,43 @@ final class RitualStore: RitualStoreProviding {
                 }
             }()
         ]
+        
+        // Return cards in user's preferred order
+        let order = insightCardOrder
+        return order.compactMap { cardsByType[$0] }
+    }
+    
+    // MARK: - Insight Card Order
+    
+    private static let insightCardOrderKey = "insightCardOrder"
+    
+    /// The user's preferred order for insight cards
+    var insightCardOrder: [InsightCardType] {
+        get {
+            guard let data = UserDefaults.standard.data(forKey: Self.insightCardOrderKey),
+                  let order = try? JSONDecoder().decode([InsightCardType].self, from: data) else {
+                return InsightCardType.defaultOrder
+            }
+            // Ensure all card types are included (in case new ones were added)
+            let missingTypes = InsightCardType.allCases.filter { !order.contains($0) }
+            return order + missingTypes
+        }
+        set {
+            if let data = try? JSONEncoder().encode(newValue) {
+                UserDefaults.standard.set(data, forKey: Self.insightCardOrderKey)
+            }
+            insightCardsNeedRefresh = true
+        }
+    }
+    
+    /// Reorders insight cards by moving a card from one position to another
+    func reorderInsightCards(from sourceIndex: Int, to destinationIndex: Int) {
+        var order = insightCardOrder
+        guard sourceIndex >= 0 && sourceIndex < order.count else { return }
+        guard destinationIndex >= 0 && destinationIndex < order.count else { return }
+        let item = order.remove(at: sourceIndex)
+        order.insert(item, at: destinationIndex)
+        insightCardOrder = order
     }
 
     func createQuickRitual() {
diff --git a/Andromida/App/Views/History/HistoryDayDetailSheet.swift b/Andromida/App/Views/History/HistoryDayDetailSheet.swift
index 5e1dcb0..0d211c0 100644
--- a/Andromida/App/Views/History/HistoryDayDetailSheet.swift
+++ b/Andromida/App/Views/History/HistoryDayDetailSheet.swift
@@ -76,7 +76,7 @@ struct HistoryDayDetailSheet: View {
             }
         }
         .presentationBackground(AppSurface.primary)
-        .presentationDetents([.medium, .large])
+        .presentationDetents([.large])
         .presentationDragIndicator(.visible)
     }
     
diff --git a/Andromida/App/Views/History/HistoryView.swift b/Andromida/App/Views/History/HistoryView.swift
index a7a51f6..7821ef8 100644
--- a/Andromida/App/Views/History/HistoryView.swift
+++ b/Andromida/App/Views/History/HistoryView.swift
@@ -90,7 +90,7 @@ struct HistoryView: View {
                 ritualPicker
                 
                 // Month calendars - 2-column grid on iPad/landscape
-                LazyVGrid(columns: monthColumns, alignment: .top, spacing: Design.Spacing.large) {
+                LazyVGrid(columns: monthColumns, alignment: .leading, spacing: Design.Spacing.large) {
                     ForEach(months, id: \.self) { month in
                         HistoryMonthView(
                             month: month,
@@ -103,6 +103,7 @@ struct HistoryView: View {
                                 selectedDateItem = IdentifiableDate(date: date)
                             }
                         )
+                        .frame(maxHeight: .infinity, alignment: .top)
                     }
                 }
                 .id(refreshToken)
diff --git a/Andromida/App/Views/Insights/Components/InsightCardView.swift b/Andromida/App/Views/Insights/Components/InsightCardView.swift
index 6dcdeb1..a8823d4 100644
--- a/Andromida/App/Views/Insights/Components/InsightCardView.swift
+++ b/Andromida/App/Views/Insights/Components/InsightCardView.swift
@@ -86,6 +86,7 @@ struct InsightCardView: View {
 #Preview {
     InsightCardView(
         card: InsightCard(
+            type: .completion,
             title: "Completion",
             value: "72%",
             caption: "Today's progress",
diff --git a/Andromida/App/Views/Insights/Components/InsightDetailSheet.swift b/Andromida/App/Views/Insights/Components/InsightDetailSheet.swift
index b7c6d69..8b1bb0c 100644
--- a/Andromida/App/Views/Insights/Components/InsightDetailSheet.swift
+++ b/Andromida/App/Views/Insights/Components/InsightDetailSheet.swift
@@ -74,6 +74,7 @@ struct InsightDetailSheet: View {
                 }
             }
         }
+        .presentationDetents([.large])
     }
     
     // MARK: - Header Section
@@ -272,6 +273,7 @@ struct InsightDetailSheet: View {
 #Preview {
     InsightDetailSheet(
         card: InsightCard(
+            type: .daysActive,
             title: "Ritual days",
             value: "16",
             caption: "Days on your journey",
diff --git a/Andromida/App/Views/Insights/InsightsView.swift b/Andromida/App/Views/Insights/InsightsView.swift
index 489f231..35c6235 100644
--- a/Andromida/App/Views/Insights/InsightsView.swift
+++ b/Andromida/App/Views/Insights/InsightsView.swift
@@ -1,9 +1,14 @@
 import SwiftUI
 import Bedrock
+import UniformTypeIdentifiers
 
 struct InsightsView: View {
     @Bindable var store: RitualStore
     @State private var refreshToken = UUID()
+    @State private var isEditing = false
+    @State private var draggingCard: InsightCardType?
+    @State private var cardOrder: [InsightCardType] = []
+    @State private var lastDroppedCard: InsightCardType?
 
     private let columns = [
         GridItem(
@@ -12,44 +17,205 @@ struct InsightsView: View {
             alignment: .top
         )
     ]
+    
+    /// Cards in the current display order (uses local state during editing)
+    private var orderedCards: [InsightCard] {
+        let allCards = store.insightCards()
+        let cardsByType = Dictionary(uniqueKeysWithValues: allCards.map { ($0.type, $0) })
+        return cardOrder.compactMap { cardsByType[$0] }
+    }
 
     var body: some View {
-        ScrollView(.vertical, showsIndicators: false) {
-            VStack(alignment: .leading, spacing: Design.Spacing.large) {
-                SectionHeaderView(
-                    title: String(localized: "Insights"),
-                    subtitle: String(localized: "Momentum at a glance")
-                )
+        NavigationStack {
+            ScrollView(.vertical, showsIndicators: false) {
+                VStack(alignment: .leading, spacing: Design.Spacing.large) {
+                    SectionHeaderView(
+                        title: String(localized: "Insights"),
+                        subtitle: String(localized: "Momentum at a glance")
+                    )
 
-                LazyVGrid(columns: columns, spacing: Design.Spacing.medium) {
-                    ForEach(store.insightCards()) { card in
-                        InsightCardView(card: card, store: store)
+                    // Grid with drag-and-drop support in edit mode
+                    LazyVGrid(columns: columns, spacing: Design.Spacing.medium) {
+                        ForEach(orderedCards) { card in
+                            insightCardItem(card: card)
+                        }
+                    }
+                    .animation(.spring(response: 0.3, dampingFraction: 0.7), value: cardOrder)
+                    .onDrop(of: [.text], isTargeted: nil) { _ in
+                        // Fallback drop handler - clear dragging state
+                        lastDroppedCard = draggingCard
+                        draggingCard = nil
+                        return false
                     }
                 }
-                .id(refreshToken)
+                .padding(Design.Spacing.large)
             }
-            .padding(Design.Spacing.large)
-        }
-        .background(LinearGradient(
-            colors: [AppSurface.primary, AppSurface.secondary],
-            startPoint: .topLeading,
-            endPoint: .bottomTrailing
-        ))
-        .onAppear {
-            Task {
-                await Task.yield()
+            .background(LinearGradient(
+                colors: [AppSurface.primary, AppSurface.secondary],
+                startPoint: .topLeading,
+                endPoint: .bottomTrailing
+            ))
+            .navigationTitle(String(localized: "Insights"))
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .primaryAction) {
+                    Button {
+                        withAnimation(.easeInOut(duration: Design.Animation.standard)) {
+                            if isEditing {
+                                // Save order and clear all drag state when exiting edit mode
+                                draggingCard = nil
+                                lastDroppedCard = nil
+                                store.insightCardOrder = cardOrder
+                            }
+                            isEditing.toggle()
+                        }
+                    } label: {
+                        Text(isEditing ? String(localized: "Done") : String(localized: "Edit"))
+                            .foregroundStyle(AppAccent.primary)
+                    }
+                }
+            }
+            .onChange(of: isEditing) { _, newValue in
+                // Clear all drag state when exiting edit mode
+                if !newValue {
+                    draggingCard = nil
+                    lastDroppedCard = nil
+                }
+            }
+            .onAppear {
+                cardOrder = store.insightCardOrder
+                Task {
+                    await Task.yield()
+                    store.refreshAnalyticsIfNeeded()
+                    store.refreshInsightCardsIfNeeded()
+                }
+            }
+            .onChange(of: store.rituals) { _, _ in
                 store.refreshAnalyticsIfNeeded()
                 store.refreshInsightCardsIfNeeded()
+                cardOrder = store.insightCardOrder
+            }
+            .onChange(of: store.insightCardOrder) { _, newOrder in
+                if !isEditing {
+                    cardOrder = newOrder
+                }
             }
         }
-        .onChange(of: store.rituals) { _, _ in
-            store.refreshAnalyticsIfNeeded()
-            store.refreshInsightCardsIfNeeded()
-            refreshToken = UUID()
+    }
+    
+    // MARK: - Card Item with Drag Support
+    
+    @ViewBuilder
+    private func insightCardItem(card: InsightCard) -> some View {
+        let isDragging = draggingCard == card.type
+        
+        let cardView = InsightCardView(card: card, store: store)
+            .overlay(alignment: .topTrailing) {
+                // Show drag handle in edit mode - sized to cover the disclosure chevron
+                if isEditing {
+                    Image(systemName: "line.3.horizontal")
+                        .font(.body.weight(.medium))
+                        .foregroundStyle(AppTextColors.inverse)
+                        .padding(Design.Spacing.small)
+                        .background(AppAccent.primary)
+                        .clipShape(.rect(cornerRadius: Design.CornerRadius.small))
+                        .padding(Design.Spacing.xSmall)
+                }
+            }
+            .opacity(isDragging ? 0.3 : 1.0)
+            .scaleEffect(isDragging ? 1.05 : (isEditing ? 0.98 : 1.0))
+            .modifier(JiggleModifier(isEnabled: isEditing && draggingCard == nil))
+        
+        // Only enable drag when in edit mode
+        if isEditing {
+            cardView
+                .onDrag {
+                    // Prevent spurious re-trigger: if this is the same card that was just dropped
+                    // and we're not currently dragging, ignore the call
+                    let isSameAsLastDrop = lastDroppedCard == card.type
+                    if !isSameAsLastDrop {
+                        lastDroppedCard = nil
+                        self.draggingCard = card.type
+                    } else if draggingCard == nil {
+                        // Spurious re-trigger - don't set draggingCard
+                    }
+                    return NSItemProvider(object: card.type.rawValue as NSString)
+                }
+                .onDrop(of: [.text], delegate: InsightCardDropDelegate(
+                    card: card,
+                    cardOrder: $cardOrder,
+                    draggingCard: $draggingCard,
+                    lastDroppedCard: $lastDroppedCard
+                ))
+        } else {
+            cardView
         }
     }
 }
 
+// MARK: - Drop Delegate
+
+struct InsightCardDropDelegate: DropDelegate {
+    let card: InsightCard
+    @Binding var cardOrder: [InsightCardType]
+    @Binding var draggingCard: InsightCardType?
+    @Binding var lastDroppedCard: InsightCardType?
+    
+    func performDrop(info: DropInfo) -> Bool {
+        // Record which card was dropped BEFORE clearing draggingCard
+        // This prevents spurious onDrag re-triggers from affecting state
+        lastDroppedCard = draggingCard
+        draggingCard = nil
+        return true
+    }
+    
+    func dropEntered(info: DropInfo) {
+        guard let dragging = draggingCard, dragging != card.type else { return }
+        
+        guard let fromIndex = cardOrder.firstIndex(of: dragging),
+              let toIndex = cardOrder.firstIndex(of: card.type),
+              fromIndex != toIndex else {
+            return
+        }
+        
+        // Move the item with animation - updates local state, persisted when Done is tapped
+        withAnimation(.spring(response: 0.3, dampingFraction: 0.7)) {
+            let item = cardOrder.remove(at: fromIndex)
+            cardOrder.insert(item, at: toIndex)
+        }
+    }
+    
+    func dropUpdated(info: DropInfo) -> DropProposal? {
+        DropProposal(operation: .move)
+    }
+    
+    func dropExited(info: DropInfo) {
+        // Don't clear here - wait for performDrop
+    }
+}
+
+// MARK: - Jiggle Animation Modifier
+
+struct JiggleModifier: ViewModifier {
+    let isEnabled: Bool
+    @State private var isJiggling = false
+    
+    func body(content: Content) -> some View {
+        content
+            .rotationEffect(.degrees(isEnabled && isJiggling ? -1 : 0))
+            .animation(
+                isEnabled ? Animation.easeInOut(duration: 0.1).repeatForever(autoreverses: true) : .default,
+                value: isJiggling
+            )
+            .onChange(of: isEnabled) { _, newValue in
+                isJiggling = newValue
+            }
+            .onAppear {
+                isJiggling = isEnabled
+            }
+    }
+}
+
 #Preview {
     InsightsView(store: RitualStore.preview)
 }
diff --git a/Andromida/App/Views/Rituals/ArcDetailView.swift b/Andromida/App/Views/Rituals/ArcDetailView.swift
index 7e1a976..e300da4 100644
--- a/Andromida/App/Views/Rituals/ArcDetailView.swift
+++ b/Andromida/App/Views/Rituals/ArcDetailView.swift
@@ -21,10 +21,36 @@ struct ArcDetailView: View {
     @Bindable var store: RitualStore
     let arc: RitualArc
     let ritual: Ritual
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
     @State private var selectedDateItem: ArcIdentifiableDate?
     
     private let calendar = Calendar.current
     
+    /// Whether to use wide layout on iPad/landscape
+    private var useWideLayout: Bool {
+        horizontalSizeClass == .regular
+    }
+    
+    /// Grid columns for month calendars - 2 columns on regular width when multiple months
+    private var monthColumns: [GridItem] {
+        AdaptiveColumns.columns(
+            compactCount: 1,
+            regularCount: monthsInArc.count > 1 ? 2 : 1,
+            spacing: Design.Spacing.large,
+            horizontalSizeClass: horizontalSizeClass
+        )
+    }
+    
+    /// Grid columns for habit breakdown - 2 columns on regular width when multiple habits
+    private var habitColumns: [GridItem] {
+        AdaptiveColumns.columns(
+            compactCount: 1,
+            regularCount: habitRates.count > 1 ? 2 : 1,
+            spacing: Design.Spacing.medium,
+            horizontalSizeClass: horizontalSizeClass
+        )
+    }
+    
     private var overallCompletionRate: Int {
         let habits = arc.habits ?? []
         let totalCheckIns = habits.reduce(0) { $0 + $1.completedDayIDs.count }
@@ -243,9 +269,10 @@ struct ArcDetailView: View {
                 .font(.headline)
                 .foregroundStyle(AppTextColors.primary)
             
-            VStack(spacing: Design.Spacing.small) {
+            LazyVGrid(columns: habitColumns, alignment: .leading, spacing: Design.Spacing.small) {
                 ForEach(habitRates, id: \.habit.id) { item in
                     habitRow(habit: item.habit, rate: item.rate)
+                        .frame(maxHeight: .infinity, alignment: .top)
                 }
             }
         }
@@ -307,21 +334,24 @@ struct ArcDetailView: View {
                 .font(.headline)
                 .foregroundStyle(AppTextColors.primary)
             
-            // Show month calendars for the arc's date range
-            ForEach(monthsInArc, id: \.self) { month in
-                HistoryMonthView(
-                    month: month,
-                    selectedRitual: ritual,
-                    completionRate: { date, _ in
-                        arcCompletionRate(for: date)
-                    },
-                    onDayTapped: { date in
-                        // Only allow tapping days within the arc range
-                        if arc.contains(date: date) {
-                            selectedDateItem = ArcIdentifiableDate(date: date)
+            // Show month calendars for the arc's date range - 2 columns on iPad
+            LazyVGrid(columns: monthColumns, alignment: .leading, spacing: Design.Spacing.large) {
+                ForEach(monthsInArc, id: \.self) { month in
+                    HistoryMonthView(
+                        month: month,
+                        selectedRitual: ritual,
+                        completionRate: { date, _ in
+                            arcCompletionRate(for: date)
+                        },
+                        onDayTapped: { date in
+                            // Only allow tapping days within the arc range
+                            if arc.contains(date: date) {
+                                selectedDateItem = ArcIdentifiableDate(date: date)
+                            }
                         }
-                    }
-                )
+                    )
+                    .frame(maxHeight: .infinity, alignment: .top)
+                }
             }
         }
     }
diff --git a/Andromida/App/Views/Rituals/Components/HabitPerformanceView.swift b/Andromida/App/Views/Rituals/Components/HabitPerformanceView.swift
index 30b6312..b1081ff 100644
--- a/Andromida/App/Views/Rituals/Components/HabitPerformanceView.swift
+++ b/Andromida/App/Views/Rituals/Components/HabitPerformanceView.swift
@@ -11,20 +11,32 @@ import Bedrock
 /// A view showing habit completion performance within a ritual.
 struct HabitPerformanceView: View {
     let habitRates: [(habit: ArcHabit, rate: Double)]
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
     
     private var sortedByRate: [(habit: ArcHabit, rate: Double)] {
         habitRates.sorted { $0.rate > $1.rate }
     }
     
+    /// Grid columns for habits - 2 columns on regular width when multiple habits
+    private var habitColumns: [GridItem] {
+        AdaptiveColumns.columns(
+            compactCount: 1,
+            regularCount: habitRates.count > 1 ? 2 : 1,
+            spacing: Design.Spacing.medium,
+            horizontalSizeClass: horizontalSizeClass
+        )
+    }
+    
     var body: some View {
         VStack(alignment: .leading, spacing: Design.Spacing.small) {
             Text(String(localized: "Habit Performance"))
                 .font(.headline)
                 .foregroundStyle(AppTextColors.primary)
             
-            VStack(spacing: Design.Spacing.xSmall) {
+            LazyVGrid(columns: habitColumns, alignment: .leading, spacing: Design.Spacing.xSmall) {
                 ForEach(sortedByRate, id: \.habit.id) { item in
                     habitRow(item.habit, rate: item.rate)
+                        .frame(maxHeight: .infinity, alignment: .top)
                 }
             }
         }
diff --git a/Andromida/App/Views/Rituals/RitualDetailView.swift b/Andromida/App/Views/Rituals/RitualDetailView.swift
index 7effbcd..233015b 100644
--- a/Andromida/App/Views/Rituals/RitualDetailView.swift
+++ b/Andromida/App/Views/Rituals/RitualDetailView.swift
@@ -5,6 +5,7 @@ struct RitualDetailView: View {
     @Bindable var store: RitualStore
     @Bindable var categoryStore: CategoryStore
     @Environment(\.dismiss) private var dismiss
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
     
     private let ritual: Ritual
     
@@ -18,6 +19,32 @@ struct RitualDetailView: View {
         self.categoryStore = categoryStore
         self.ritual = ritual
     }
+    
+    /// Whether to use wide layout on iPad/landscape
+    private var useWideLayout: Bool {
+        horizontalSizeClass == .regular
+    }
+    
+    /// Grid columns for habits - 2 columns on regular width when multiple habits
+    private var habitColumns: [GridItem] {
+        let habits = store.habits(for: ritual)
+        return AdaptiveColumns.columns(
+            compactCount: 1,
+            regularCount: habits.count > 1 ? 2 : 1,
+            spacing: Design.Spacing.medium,
+            horizontalSizeClass: horizontalSizeClass
+        )
+    }
+    
+    /// Grid columns for arc history - 2 columns on regular width when multiple arcs
+    private var arcColumns: [GridItem] {
+        AdaptiveColumns.columns(
+            compactCount: 1,
+            regularCount: completedArcs.count > 1 ? 2 : 1,
+            spacing: Design.Spacing.medium,
+            horizontalSizeClass: horizontalSizeClass
+        )
+    }
 
     private var daysRemaining: Int {
         store.daysRemaining(for: ritual)
@@ -275,7 +302,7 @@ struct RitualDetailView: View {
                 subtitle: String(localized: "Tap to check in")
             )
 
-            VStack(spacing: Design.Spacing.medium) {
+            LazyVGrid(columns: habitColumns, alignment: .leading, spacing: Design.Spacing.medium) {
                 ForEach(store.habits(for: ritual)) { habit in
                     TodayHabitRowView(
                         title: habit.title,
@@ -283,6 +310,7 @@ struct RitualDetailView: View {
                         isCompleted: store.isHabitCompletedToday(habit),
                         action: { store.toggleHabitCompletion(habit) }
                     )
+                    .frame(maxHeight: .infinity, alignment: .top)
                 }
             }
         }
@@ -378,9 +406,10 @@ struct RitualDetailView: View {
                     .font(.caption)
                     .foregroundStyle(AppTextColors.tertiary)
             } else {
-                VStack(spacing: Design.Spacing.small) {
+                LazyVGrid(columns: arcColumns, alignment: .leading, spacing: Design.Spacing.small) {
                     ForEach(completedArcs) { arc in
                         arcHistoryRow(arc)
+                            .frame(maxHeight: .infinity, alignment: .top)
                     }
                 }
             }
diff --git a/Andromida/App/Views/Rituals/Sheets/ArcRenewalSheet.swift b/Andromida/App/Views/Rituals/Sheets/ArcRenewalSheet.swift
index 85d73e8..51e6062 100644
--- a/Andromida/App/Views/Rituals/Sheets/ArcRenewalSheet.swift
+++ b/Andromida/App/Views/Rituals/Sheets/ArcRenewalSheet.swift
@@ -58,6 +58,7 @@ struct ArcRenewalSheet: View {
         .sheet(isPresented: $showingEditSheet) {
             RitualEditSheet(store: store, categoryStore: categoryStore, ritual: ritual)
         }
+        .presentationDetents([.large])
     }
     
     private var celebrationHeader: some View {
diff --git a/Andromida/App/Views/Rituals/Sheets/PresetLibrarySheet.swift b/Andromida/App/Views/Rituals/Sheets/PresetLibrarySheet.swift
index 6bfa67c..e959984 100644
--- a/Andromida/App/Views/Rituals/Sheets/PresetLibrarySheet.swift
+++ b/Andromida/App/Views/Rituals/Sheets/PresetLibrarySheet.swift
@@ -194,7 +194,7 @@ struct PresetDetailSheet: View {
                 }
             }
         }
-        .presentationDetents([.medium, .large])
+        .presentationDetents([.large])
         .presentationDragIndicator(.visible)
     }
     
diff --git a/Andromida/App/Views/Rituals/Sheets/RitualEditSheet.swift b/Andromida/App/Views/Rituals/Sheets/RitualEditSheet.swift
index 323aea2..324a810 100644
--- a/Andromida/App/Views/Rituals/Sheets/RitualEditSheet.swift
+++ b/Andromida/App/Views/Rituals/Sheets/RitualEditSheet.swift
@@ -554,7 +554,7 @@ struct IconPickerSheet: View {
                 }
             }
         }
-        .presentationDetents([.medium, .large])
+        .presentationDetents([.large])
         .presentationDragIndicator(.visible)
     }
     
@@ -670,7 +670,7 @@ struct HabitIconPickerSheet: View {
                 }
             }
         }
-        .presentationDetents([.medium, .large])
+        .presentationDetents([.large])
         .presentationDragIndicator(.visible)
     }
     
diff --git a/Andromida/App/Views/Settings/CategoryEditSheet.swift b/Andromida/App/Views/Settings/CategoryEditSheet.swift
index 09c321c..a715bf6 100644
--- a/Andromida/App/Views/Settings/CategoryEditSheet.swift
+++ b/Andromida/App/Views/Settings/CategoryEditSheet.swift
@@ -119,7 +119,7 @@ struct CategoryEditSheet: View {
                 Text(String(localized: "Rituals using this category will be set to no category."))
             }
         }
-        .presentationDetents([.medium])
+        .presentationDetents([.large])
     }
     
     private func loadCategory() {
diff --git a/Andromida/App/Views/Today/TodayView.swift b/Andromida/App/Views/Today/TodayView.swift
index a6bcd95..153fdbe 100644
--- a/Andromida/App/Views/Today/TodayView.swift
+++ b/Andromida/App/Views/Today/TodayView.swift
@@ -51,7 +51,7 @@ struct TodayView: View {
                     }
                 } else {
                     // Use 2-column grid on iPad/landscape when multiple rituals
-                    LazyVGrid(columns: ritualColumns, alignment: .top, spacing: Design.Spacing.large) {
+                    LazyVGrid(columns: ritualColumns, alignment: .leading, spacing: Design.Spacing.large) {
                         ForEach(todayRituals) { ritual in
                             TodayRitualSectionView(
                                 focusTitle: ritual.title,
@@ -63,6 +63,7 @@ struct TodayView: View {
                                 iconName: ritual.iconName,
                                 timeOfDay: ritual.timeOfDay
                             )
+                            .frame(maxHeight: .infinity, alignment: .top)
                         }
                     }
                 }