#chat-bubble {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    position: fixed;
    cursor: pointer;
    z-index: 9999;
    background-color: #0084ff;
}
#chat-bubble img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
}
#chat-box {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 300px;
    height: 400px;
    background: #fff;
    border: 1px solid #ccc;
    display: flex;
    flex-direction: column;
    z-index: 9998;
}
.chat-hidden { display: none; }
#chat-messages {
    flex: 1;
    padding: 10px;
    overflow-y: auto;
}
#chat-input {
    border: none;
    border-top: 1px solid #ccc;
    padding: 10px;
    width: 100%;
    resize: none;
}
#send-chat {
    border: none;
    background: #0084ff;
    color: white;
    padding: 10px;
    cursor: pointer;
}