body {
    font-family: Arial, sans-serif;
}

.chat-box {
    position: fixed;
    bottom: 70px;
    right: 20px;
/*    width: 300px;*/
    border: 1px solid #ccc;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    border-radius: 10px;
    overflow: hidden;
    display: none;
}

.chat-header {
    background-color: #007BFF;
    color: white;
    padding: 10px;
    text-align: center;
    cursor: pointer;
}

.chat-body {
    background-color: #f1f1f1;
    padding: 10px;
    display: none;
}

.messages {
    max-height: 200px;
    overflow-y: auto;
}

.message {
    margin-bottom: 10px;
    padding: 10px;
    border-radius: 10px;
}

.message.received {
    background-color: #e1ffc7;
    align-self: flex-start;
}

input[type="text"] {
    width: calc(100% - 60px);
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 10px;
    margin-right: 10px;
}

button {
    padding: 10px 20px;
    border: none;
    background-color: #000000;
    color: white;
    border-radius: 10px;
    cursor: pointer;
    margin-top: 10px;
}

.fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: #007BFF;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0,0,0,0.2);
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 24px;
    cursor: pointer;
}