#sen-chat-box {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 320px;
    background: #fdf4dc;
    border: 2px solid #e0c97f;
    border-radius: 12px;
    box-shadow: 0 0 10px #aaa;
    font-family: sans-serif;
}
#sen-chat-header {
    background: #ffe599;
    padding: 10px;
    font-weight: bold;
    border-radius: 10px 10px 0 0;
}
#sen-chat-content {
    max-height: 260px;
    overflow-y: auto;
    padding: 10px;
}
#sen-chat-input {
    width: 70%;
    padding: 8px;
    border: none;
    border-top: 1px solid #ccc;
}
#sen-chat-send {
    width: 30%;
    background: #ffd966;
    border: none;
    padding: 8px;
    cursor: pointer;
}
.msg {
    margin: 5px 0;
}
.msg.user {
    text-align: right;
    color: #333;
}
.msg.bot {
    text-align: left;
    color: #007b5e;
}