#biz-ai-chat-container { position: fixed; bottom: 20px; right: 20px; z-index: 999999; font-family: sans-serif; }
#biz-ai-toggle-bubble { width: 60px; height: 60px; background: #0073aa; color: #fff; border-radius: 50%; text-align: center; line-height: 60px; font-size: 28px; cursor: pointer; box-shadow: 0 4px 10px rgba(0,0,0,0.2); }
#biz-ai-chat-window { width: 350px; height: 450px; background: #fff; border: 1px solid #ccc; border-radius: 10px; margin-bottom: 15px; display: flex; flex-direction: column; overflow: hidden; box-shadow: 0 5px 15px rgba(0,0,0,0.3); }
#biz-ai-chat-header { background: #0073aa; color: #fff; padding: 15px; font-weight: bold; }
#biz-ai-chat-messages { flex: 1; padding: 15px; overflow-y: auto; background: #f9f9f9; font-size: 14px; }
#biz-ai-chat-footer { display: flex; border-top: 1px solid #eee; }
#biz-ai-input { flex: 1; border: none; padding: 12px; font-size: 14px; }
#biz-ai-send { background: #0073aa; color: #fff; border: none; padding: 0 15px; cursor: pointer; }
.msg { margin-bottom: 10px; padding: 8px; border-radius: 5px; max-width: 85%; }
.user-msg { background: #e2f0fd; align-self: flex-end; margin-left: auto; }
.ai-msg { background: #f1f1f1; align-self: flex-start; }