body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.payment-box {
    background-color: #522b76;;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 400px;
}

h1 {
    color: #ffff;
    font-size: 24px;
    margin-bottom: 20px;
}

h2 {
    color: #ffff;
    font-size: 18px;
    margin-bottom: 20px;
}

input[type="number"],
input[type="text"] {
    width: 80%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.service-button {
    background-color: #007BFF;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-bottom: 20px;
    margin: 10px 10px 20px
}

.service-button:hover {
    background-color: #0056b3;
}

.logo {
    width: 200px;
    height: auto;
    margin-bottom: 20px;
}

.wallet-address {
    font-family: serif;
    font-size: 16px;
    padding: 10px;
    background-color: #f8f9fa;
    border: 1px solid #ced4da;
    border-radius: 4px;
    margin-bottom: 20px;
    cursor: pointer;
}

.copy-btn {
    background-color: #28a745;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

.copy-btn:hover {
    background-color: #218838;
}

.qr-code {
    margin-bottom: 20px;
}

.loader {
    border: 8px solid #f3f3f3;
    border-radius: 50%;
    border-top: 8px solid #3498db;
    width: 50px;
    height: 50px;
    animation: spin 2s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}