Complete 3.4.1: Tablet Layouts - Implement tablet-specific UI with adaptive sizing and gesture support

UI_UPDATE.MD

@@ -361,10 +361,16 @@ Always come back and update UI_UPDATE.MD once complete with task and task item.
 
 ### Sub-task 3.4: Tablet and Desktop Optimizations
 
-#### 3.4.1: Tablet Layouts
-- [ ] Design tablet-specific fullscreen layouts
-- [ ] Implement adaptive component sizing
-- [ ] Create tablet gesture support
+#### 3.4.1: Tablet Layouts - COMPLETED 9/29/2025
+- [x] Design tablet-specific fullscreen layouts
+- [x] Implement adaptive component sizing
+- [x] Create tablet gesture support
+
+**Notes:** Implemented comprehensive tablet-specific UI with:
+- Tablet-specific CSS layout (768px-1023px) with side-by-side layout and optimized 320px chat panel width
+- Adaptive component sizing with tablet-specific header padding, logo sizing, and chat header adjustments
+- Tablet gesture support with swipe-to-seek functionality (swipe left/right on video seeks forward/backward 10 seconds)
+- Device detection and responsive gesture handling that differs from mobile (chat toggle) and desktop (no gestures)
 
 #### 3.4.2: Desktop Enhancements
 - [ ] Optimize for large screen viewing

assets/js/ui-controls.js

@@ -185,9 +185,18 @@
         }
     }
 
-    // Mobile responsive behavior
+    // Determine device type for responsive behavior
+    function getDeviceType() {
+        const width = window.innerWidth;
+        if (width <= AppConfig.ui.mobileBreakpoint) return 'mobile';
+        if (width >= 768 && width < 1024) return 'tablet'; // Tablet: 768px-1023px
+        return 'desktop'; // Desktop: 1024px+
+    }
+
+    // Responsive behavior based on device type
     function handleWindowResize() {
-        const isMobile = window.innerWidth <= AppConfig.ui.mobileBreakpoint;
+        const deviceType = getDeviceType();
+        const isMobile = deviceType === 'mobile';
 
         if (isMobile && !AppState.chatCollapsed) {
             // Auto-collapse chat on mobile for better viewing
@@ -234,9 +243,9 @@
             const minSwipeDistance = 75; // Minimum swipe distance in pixels
 
             if (Math.abs(deltaX) > minSwipeDistance) {
-                const isMobile = window.innerWidth <= AppConfig.ui.mobileBreakpoint;
+                const deviceType = getDeviceType();
 
-                if (isMobile) {
+                if (deviceType === 'mobile') {
                     // On mobile, swipe left to hide chat, right to show chat
                     if (deltaX < 0) {
                         // Swipe left - hide chat
@@ -249,6 +258,23 @@
                             toggleChat();
                         }
                     }
+                } else if (deviceType === 'tablet') {
+                    // On tablet, swipe gestures control video playback
+                    if (deltaX < 0) {
+                        // Swipe left - seek forward
+                        if (AppState.player && typeof AppState.player.currentTime === 'function') {
+                            const currentTime = AppState.player.currentTime();
+                            AppState.player.currentTime(currentTime + 10); // Skip forward 10 seconds
+                            showToast('Skipped forward 10s', 1000);
+                        }
+                    } else {
+                        // Swipe right - seek backward
+                        if (AppState.player && typeof AppState.player.currentTime === 'function') {
+                            const currentTime = AppState.player.currentTime();
+                            AppState.player.currentTime(Math.max(0, currentTime - 10)); // Skip back 10 seconds
+                            showToast('Skipped back 10s', 1000);
+                        }
+                    }
                 }
             }
         }

static/css/components.css

@@ -826,6 +826,21 @@
     gap: var(--spacing-5);
 }
 
+/* Tablet-specific video header adjustments */
+@media (min-width: calc(var(--breakpoint-md))) and (max-width: calc(var(--breakpoint-lg) - 1px)) {
+    .video-player__header:not(.video-responsive-preserve) {
+        padding: var(--spacing-4) var(--spacing-6);
+    }
+
+    .video-player__header-left:not(.video-responsive-preserve) {
+        gap: var(--spacing-6);
+    }
+
+    .stream-logo {
+        font-size: var(--font-size-2xl);
+    }
+}
+
 .stream-logo {
     font-size: var(--font-size-xl);
     font-weight: var(--font-weight-bold);
@@ -982,6 +997,23 @@
     justify-content: space-between;
 }
 
+/* Tablet-specific chat header adjustments */
+@media (min-width: calc(var(--breakpoint-md))) and (max-width: calc(var(--breakpoint-lg) - 1px)) {
+    .chat__header:not(.chat-responsive-preserve) {
+        padding: var(--spacing-5) var(--spacing-6);
+        font-size: var(--font-size-lg);
+    }
+
+    .chat__header-title {
+        gap: var(--spacing-3);
+    }
+
+    .chat__header-title::before {
+        width: 1.5em;
+        height: 1.5em;
+    }
+}
+
 .chat__header-title {
     display: flex;
     align-items: center;

static/css/layout.css

@@ -11,6 +11,14 @@
     transition: all var(--transition-slow);
 }
 
+/* Tablet-specific theater layout */
+@media (min-width: var(--breakpoint-md)) and (max-width: calc(var(--breakpoint-lg) - 1px)) {
+    .theater {
+        flex-direction: row;
+        /* Optimized for tablet: more balanced split */
+    }
+}
+
 /* Mobile-first responsive layout */
 @media (max-width: calc(var(--breakpoint-md) - 1px)) {
     .theater {
@@ -60,6 +68,19 @@
     width: 100%;
 }
 
+/* Tablet-specific video section adjustments */
+@media (min-width: var(--breakpoint-md)) and (max-width: calc(var(--breakpoint-lg) - 1px)) {
+    .theater__video-section {
+        flex-basis: 0; /* Allow flex-grow to control sizing */
+        flex-grow: 1;
+        min-width: 0; /* Prevent flex item from exceeding container */
+    }
+
+    .theater__video-section.expanded {
+        flex-grow: 2; /* When chat is collapsed, video takes more space */
+    }
+}
+
 /* =================================================================
    VIDEO WRAPPER - Contains the video element
    ================================================================= */