body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f2f2f2;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}



.card {
    background-color: #fff;
    border-radius: 5px;
    margin-bottom: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: #1a1a1a;
    color: #fff;
    padding: 10px;
    text-align: center  ;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
}

.card-body {
    padding: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
}

input[type="text"] {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 10px;
    box-sizing: border-box;
}

button {
    width: 90%;
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #1b60aa;
}
.btn-submit:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

#payment-message {
    margin-top: 20px;
    color: green;
}


.text-center{
    text-align: center;
}
.bg-green{
    background-color: green;
}
.d-none{
    display: none;
}
#btn-submit:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}