refactor: consolidate game components and add toast notifications

- Remove EndlosGame support and GameDetail141.jsx component
- Add Toast notification system with CSS styling
- Refactor GameCompletionModal with enhanced styling
- Improve GameDetail component structure and styling
- Add BaseLayout.astro for consistent page structure
- Update gameService with cleaner logic
- Enhance global styles and remove unused constants
- Streamline navigation components

src/components/GameCompletionModal.module.css

@@ -26,18 +26,68 @@
 .winner-announcement {
     text-align: center;
     margin: 20px 0 0 0;
-    padding: 18px 8px;
-    background: #43a047;
-    border-radius: 8px;
+    padding: 24px 16px;
+    background: linear-gradient(135deg, #ff9800 0%, #ffa726 100%);
+    border-radius: 16px;
     font-size: 1.2rem;
-    color: #fff;
+    color: #222;
     font-weight: 700;
+    box-shadow: 0 8px 32px rgba(255, 152, 0, 0.3);
+    animation: celebrationPulse 2s ease-in-out infinite;
+    position: relative;
+    overflow: hidden;
 }
+
+.winner-announcement::before {
+    content: '🎉';
+    position: absolute;
+    top: -10px;
+    left: 20px;
+    font-size: 24px;
+    animation: bounce 1s ease-in-out infinite;
+}
+
+.winner-announcement::after {
+    content: '🏆';
+    position: absolute;
+    top: -10px;
+    right: 20px;
+    font-size: 24px;
+    animation: bounce 1s ease-in-out infinite 0.5s;
+}
+
 .winner-announcement h3 {
     margin: 0;
-    font-size: 1.5rem;
-    color: #2c3e50;
+    font-size: 1.8rem;
+    color: #222;
     text-align: center;
+    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
+    text-transform: uppercase;
+    letter-spacing: 1px;
+    font-weight: 900;
+}
+
+@keyframes celebrationPulse {
+    0%, 100% {
+        transform: scale(1);
+        box-shadow: 0 8px 32px rgba(255, 152, 0, 0.3);
+    }
+    50% {
+        transform: scale(1.02);
+        box-shadow: 0 12px 40px rgba(255, 152, 0, 0.4);
+    }
+}
+
+@keyframes bounce {
+    0%, 20%, 50%, 80%, 100% {
+        transform: translateY(0);
+    }
+    40% {
+        transform: translateY(-10px);
+    }
+    60% {
+        transform: translateY(-5px);
+    }
 }
 .btn {
     flex: 1;