.chat-container::-webkit-scrollbar { width: 8px; }
.chat-container::-webkit-scrollbar-track { background: transparent; }
.chat-container::-webkit-scrollbar-thumb { background-color: rgba(100, 116, 139, 0.5); border-radius: 4px; }
.chat-container::-webkit-scrollbar-thumb:hover { background-color: rgba(100, 116, 139, 0.8); }
.chat-message-image { max-height: 300px; object-fit: contain; width: 100%; border-radius: 0.5rem; margin-top: 8px; margin-bottom: 4px; }