#ai-chat-box {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 320px;
    background: #ffffff;
    border: 1px solid #e6e6e6;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial;
    z-index: 999999;
}
#ai-chat-header {
    background: #0a6aa1;
    color: #fff;
    padding: 10px;
    font-weight: 600;
    text-align: center;
}
#ai-chat-messages {
    max-height: 220px;
    overflow-y: auto;
    padding: 12px;
    font-size: 14px;
    line-height: 1.4;
}
#ai-chat-controls {
    display: flex;
    border-top: 1px solid #eee;
}
#ai-chat-input {
    flex: 1;
    border: none;
    padding: 10px;
    outline: none;
}
#ai-chat-send {
    background: #0073aa;
    color: #fff;
    border: none;
    padding: 0 16px;
    cursor: pointer;
}
.ai-chat-msg-user { text-align: left; margin-bottom: 8px; }
.ai-chat-msg-bot { text-align: left; margin-bottom: 8px; color: #0b3b4a; }
.ai-chat-small { font-size: 12px; color: #777; }