feat: Show character avatar in chat - split view on desktop, background on mobile

src/pages/GamePage.css

@@ -237,10 +237,12 @@
 .game-content {
   flex: 1;
   min-height: 0;
+  min-width: 0;
   display: flex;
   flex-direction: column;
   overflow: hidden;
   position: relative;
+  width: 100%;
 }
 
 .scroll-to-bottom-btn {
@@ -272,6 +274,7 @@
 .messages-container {
   flex: 1;
   overflow-y: auto;
+  overflow-x: hidden;
   overscroll-behavior: contain;
   -webkit-overflow-scrolling: touch;
   touch-action: pan-y;
@@ -282,11 +285,15 @@
   display: flex;
   flex-direction: column;
   gap: 0.75rem;
+  width: 100%;
+  box-sizing: border-box;
 }
 
 .message {
   max-width: 88%;
   animation: fadeIn 0.25s ease;
+  word-wrap: break-word;
+  overflow-wrap: break-word;
 }
 
 @keyframes fadeIn {
@@ -714,6 +721,121 @@
   margin-left: 2px;
 }
 
+/* Game Layout with Character Panel */
+.game-layout {
+  flex: 1;
+  display: flex;
+  min-height: 0;
+  min-width: 0;
+  overflow: hidden;
+  position: relative;
+  width: 100%;
+}
+
+.character-panel {
+  width: 350px;
+  min-width: 350px;
+  height: 100%;
+  position: relative;
+  overflow: hidden;
+  flex-shrink: 0;
+  background: #0a0a0a;
+  border-right: 1px solid rgba(255, 255, 255, 0.08);
+}
+
+.character-panel img {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+  object-position: top center;
+}
+
+.character-panel-info {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  padding: 1rem;
+  background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
+  display: flex;
+  flex-direction: column;
+  gap: 0.25rem;
+}
+
+.character-panel-name {
+  font-size: 1.25rem;
+  font-weight: 600;
+  color: #fff;
+  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
+}
+
+.character-panel-role {
+  font-size: 0.85rem;
+  color: #aaa;
+  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
+}
+
+/* Desktop layout */
+@media (min-width: 769px) {
+  .game-layout.has-character .game-content {
+    flex: 1;
+  }
+}
+
+/* Mobile: character as background */
+@media (max-width: 768px) {
+  .character-panel {
+    display: none;
+  }
+
+  .game-layout {
+    flex-direction: column;
+  }
+
+  .game-layout .game-content {
+    width: 100%;
+    max-width: 100%;
+  }
+
+  .game-layout.has-character {
+    position: relative;
+  }
+
+  .game-layout.has-character::before {
+    content: "";
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-image: var(--character-bg);
+    background-size: cover;
+    background-position: top center;
+    opacity: 0.15;
+    pointer-events: none;
+    z-index: 0;
+  }
+
+  .game-layout.has-character .game-content {
+    position: relative;
+    z-index: 1;
+  }
+
+  .game-layout.has-character .messages-container {
+    background: transparent;
+  }
+
+  .game-layout.has-character .message {
+    background: transparent;
+  }
+
+  .game-layout.has-character .input-container {
+    background: rgba(10, 10, 10, 0.9);
+    backdrop-filter: blur(8px);
+    -webkit-backdrop-filter: blur(8px);
+  }
+}
+
 @keyframes blink {
   0%,
   50% {