.chat-container {
    margin: 40px auto;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    padding: 24px 24px 16px 24px;
}
#chatbox {
    width: 100%;
    height: 320px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    overflow-y: scroll;
    background: #fafbfc;
    margin-bottom: 18px;
    font-size: 15px;
    line-height: 1.6;
}
#chatbox div{
    padding: 0px 12px;
}
#chatbox b {
    color: #1976d2;
}
form {
    display: flex;
    gap: 8px;
}
#message {
    flex: 1;
    padding: 10px;
    border: 1px solid #cfd8dc;
    border-radius: 5px;
    font-size: 15px;
    outline: none;
    transition: border 0.2s;
    margin:0;
}
#message:focus {
    border: 1.5px solid #1976d2;
}
#send {
    background: #1976d2;
    color: #fff;
    border: none;
    border-radius: 5px;
    padding: 0 22px;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.2s;
    width: auto;
}
#send:hover {
    background: #125ea7;
}
h2 {
    color: #1976d2;
    font-weight: 500;
    margin-bottom: 18px;
    text-align: center;
}