.ocai-chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 300px;
    background: #fff;
    border: 1px solid #ccc;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
    font-family: Arial, sans-serif;
}

.ocai-chat-header {
    background: #f1f1f1;
    padding: 10px;
    font-weight: bold;
}

.ocai-chat-body {
    padding: 10px;
}

.ocai-chat-body input[type="text"] {
    width: calc(100% - 70px);
    padding: 5px;
}

.ocai-chat-body button {
    padding: 5px 10px;
}