Signed-off-by: Matt Bruce <mbrucedogs@gmail.com>

CasinoKit/GAME_TEMPLATE.md

@@ -412,6 +412,192 @@ Text(String(localized: "Blackjack!"))
 Text(String(localized: "Bust!"))
 ```
 
+## Responsive Layout (iPhone vs iPad)
+
+### The Problem
+
+On iPad, content that looks great on iPhone will **stretch to fill the screen**, making:
+- Betting areas look awkward and disproportionate
+- Cards appear too spread out
+- Buttons become oversized
+- Overlays cover the entire screen unnecessarily
+
+### The Solution: Constrained Width Containers
+
+Use `horizontalSizeClass` to detect iPad and constrain content width:
+
+```swift
+struct GameTableView: View {
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
+    @Environment(\.verticalSizeClass) private var verticalSizeClass
+    
+    /// Whether we're on iPad (regular horizontal size class)
+    private var isIPad: Bool {
+        horizontalSizeClass == .regular
+    }
+    
+    /// Maximum content width based on device and orientation
+    private var maxContentWidth: CGFloat {
+        if isIPad {
+            // Landscape on iPad gets more width
+            return verticalSizeClass == .compact 
+                ? CasinoDesign.Size.maxContentWidthLandscape   // 800pt
+                : CasinoDesign.Size.maxContentWidthPortrait    // 500pt
+        }
+        return .infinity  // iPhone uses full width
+    }
+    
+    var body: some View {
+        ZStack {
+            TableBackgroundView()
+            
+            VStack {
+                TopBarView(...)
+                    .frame(maxWidth: maxContentWidth)
+                
+                // Game table - constrained on iPad
+                YourTableLayoutView(...)
+                    .frame(maxWidth: maxContentWidth)
+                
+                // Chip selector - constrained
+                ChipSelectorView(...)
+                    .frame(maxWidth: maxContentWidth)
+                
+                // Action buttons - constrained
+                ActionButtonsView(...)
+                    .frame(maxWidth: maxContentWidth)
+            }
+            .frame(maxWidth: .infinity) // Centers constrained content
+            
+            // Overlays - full screen background, constrained content
+            if showResultBanner {
+                ResultBannerView(...)
+            }
+        }
+    }
+}
+```
+
+### Overlay Pattern (Result Banner, Game Over)
+
+Overlays need special handling: **full-screen dim background** with **constrained content card**:
+
+```swift
+struct ResultBannerView: View {
+    var body: some View {
+        ZStack {
+            // 1. Full-screen dark background
+            Color.black.opacity(0.7)
+                .ignoresSafeArea()
+            
+            // 2. Constrained content card
+            VStack {
+                // Your content
+            }
+            .padding()
+            .background(RoundedRectangle(cornerRadius: 24).fill(...))
+            .frame(maxWidth: CasinoDesign.Size.maxModalWidth)  // 450pt
+            // Centered automatically by ZStack
+        }
+    }
+}
+```
+
+### Fixed-Size Containers (Prevent Layout Shifts)
+
+When content changes (cards dealt, buttons appear/disappear), prevent jarring layout shifts:
+
+```swift
+// ❌ BAD: Container resizes as cards are added
+HStack {
+    ForEach(cards) { card in
+        CardView(card: card)
+    }
+}
+
+// ✅ GOOD: Fixed container based on max possible content
+ZStack {
+    // Reserve space for max cards (e.g., 3 cards with overlap)
+    Color.clear
+        .frame(width: calculateMaxWidth(), height: cardHeight)
+    
+    // Actual cards centered within
+    HStack(spacing: cardSpacing) {
+        ForEach(cards) { card in
+            CardView(card: card)
+        }
+    }
+}
+```
+
+Same for buttons:
+
+```swift
+// ✅ GOOD: Fixed height container for buttons
+ZStack {
+    Color.clear
+        .frame(height: 60)  // Fixed height
+    
+    // Buttons animate in/out within fixed space
+    if showDealButton {
+        ActionButton("Deal", ...)
+            .transition(.scale.combined(with: .opacity))
+    }
+}
+.animation(.spring(duration: 0.3), value: currentPhase)
+```
+
+### Confetti Full-Screen Fix
+
+Confetti must cover the entire screen on iPad:
+
+```swift
+struct ConfettiView: View {
+    var body: some View {
+        GeometryReader { geometry in
+            ZStack {
+                ForEach(0..<50, id: \.self) { _ in
+                    ConfettiPiece(containerSize: geometry.size)
+                }
+            }
+        }
+        .ignoresSafeArea()  // Critical!
+        .allowsHitTesting(false)
+    }
+}
+```
+
+### Design Constants for Responsive Layout
+
+```swift
+// In CasinoDesign.swift
+enum Size {
+    // Max widths for iPad constraint
+    static let maxContentWidthPortrait: CGFloat = 500
+    static let maxContentWidthLandscape: CGFloat = 800
+    static let maxModalWidth: CGFloat = 450
+}
+```
+
+### Common Pitfalls
+
+| Issue | Symptom | Fix |
+|-------|---------|-----|
+| Stretched table | Betting zones look huge on iPad | Add `.frame(maxWidth: maxContentWidth)` |
+| Overlay too wide | Result banner covers entire iPad screen | Use full-screen bg + constrained content card |
+| Layout shifts | Cards/buttons cause content to jump | Use fixed-size `ZStack` containers |
+| Confetti cut off | Only shows in center portion | Use `GeometryReader` + `.ignoresSafeArea()` |
+| Settings rows cramped | Title/subtitle too close to divider | Add `.padding(.vertical, ...)` |
+
+### Testing Checklist
+
+- [ ] iPhone SE (smallest)
+- [ ] iPhone Pro Max (largest iPhone)
+- [ ] iPad Portrait
+- [ ] iPad Landscape
+- [ ] iPad Split View
+- [ ] Dynamic Type at maximum accessibility size
+
 ## Checklist for New Game
 
 ### Setup
@@ -445,11 +631,19 @@ Text(String(localized: "Bust!"))
 - [ ] Add localization for all strings
 
 ### Polish
-- [ ] Test Dynamic Type scaling
-- [ ] Test VoiceOver
-- [ ] Test iPad layout
+- [ ] Test Dynamic Type scaling (all sizes including accessibility)
+- [ ] Test VoiceOver navigation
 - [ ] Create app icon using `AppIconView`
 
+### Responsive Layout (iPad)
+- [ ] Add `maxContentWidth` constraint to main views
+- [ ] Test iPad Portrait - content centered, not stretched
+- [ ] Test iPad Landscape - wider constraint works well
+- [ ] Verify overlays: full-screen bg, constrained content
+- [ ] Fixed-size containers prevent layout shifts
+- [ ] Confetti covers full screen
+- [ ] Settings rows have proper padding
+
 ## What Could Be Added to CasinoKit
 
 The following patterns from Baccarat could be abstracted:

CasinoKit/Sources/CasinoKit/Resources/Localizable.xcstrings

@@ -65,6 +65,10 @@
       "comment" : "The value of the balance displayed in the top bar.",
       "isCommentAutoGenerated" : true
     },
+    "$%lld bet" : {
+      "comment" : "A value describing the bet amount in the accessibility label. The argument is the bet amount.",
+      "isCommentAutoGenerated" : true
+    },
     "1. Use Xcode's preview to screenshot these icons" : {
 
     },
@@ -124,6 +128,10 @@
         }
       }
     },
+    "Betting disabled" : {
+      "comment" : "A hint that appears when a betting zone is disabled.",
+      "isCommentAutoGenerated" : true
+    },
     "Card face down" : {
       "localizations" : {
         "en" : {
@@ -278,6 +286,10 @@
         }
       }
     },
+    "Double tap to place bet" : {
+      "comment" : "A hint text describing the action to take in the betting zone.",
+      "isCommentAutoGenerated" : true
+    },
     "Eight" : {
       "localizations" : {
         "en" : {
@@ -656,6 +668,10 @@
         }
       }
     },
+    "No bet" : {
+      "comment" : "A description of a zone with no active bet.",
+      "isCommentAutoGenerated" : true
+    },
     "Perfect for learning" : {
       "localizations" : {
         "en" : {
@@ -1078,28 +1094,6 @@
         }
       }
     },
-    "You've run out of chips!" : {
-      "localizations" : {
-        "en" : {
-          "stringUnit" : {
-            "state" : "translated",
-            "value" : "You've run out of chips!"
-          }
-        },
-        "es-MX" : {
-          "stringUnit" : {
-            "state" : "translated",
-            "value" : "¡Te quedaste sin fichas!"
-          }
-        },
-        "fr-CA" : {
-          "stringUnit" : {
-            "state" : "translated",
-            "value" : "Vous n'avez plus de jetons!"
-          }
-        }
-      }
-    },
     "WIN" : {
       "localizations" : {
         "en" : {
@@ -1121,6 +1115,28 @@
           }
         }
       }
+    },
+    "You've run out of chips!" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "You've run out of chips!"
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "¡Te quedaste sin fichas!"
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Vous n'avez plus de jetons!"
+          }
+        }
+      }
     }
   },
   "version" : "1.1"