#freight-chat-popup {
    position: fixed;
    bottom: 15px;
    right: 20px;
    width: 300px;
    max-height: 400px;
    background: #fff;
    border: 1px solid #ccc;
    box-shadow: 0 0 8px rgba(0,0,0,0.1);
    z-index: 9999;
    display: none;
    flex-direction: column;
}
#freight-chat-popup header {
    background: #0073aa;
    color: #fff;
    padding: 10px;
    font-weight: bold;
}
#freight-chat-popup .chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}
#freight-chat-popup form {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
}
#freight-chat-popup input[type=text], #freight-chat-popup input[type=file] {
    width: 100%;
}