.overlay {
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    position: fixed;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.chatModal {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    width: 280px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}