/* General Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Font and Sizing */
body {
    font-family: Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: #333;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 10px;
}

/* Container Styles */
.container {
    background: #fff;
    padding: 20px;
    width: 100%;
    max-width: 500px;
    border-radius: 8px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
    margin: 20px 0;
}

h2 {
    text-align: center;
    color: #333;
    font-size: 24px;
}

/* Form Sections */
.form-section {
    margin-bottom: 20px;
}

.form-section h3 {
    font-size: 18px;
    border-bottom: 2px solid #333;
    padding-bottom: 5px;
    margin-bottom: 15px;
    color: #555;
}

/* Label and Input Styles */
label {
    font-size: 14px;
    color: #333;
    margin-bottom: 5px;
    display: block;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="file"],
textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 16px;
}

textarea {
    resize: vertical;
}

.amount {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin-top: -10px;
    margin-bottom: 20px;
}

/* QR Code Section */
.qr-code {
    text-align: center;
    margin-top: 10px;
}

.qr-code img {
    width: 150px;
    height: 150px;
    border: 2px solid #ddd;
    border-radius: 8px;
}

/* Button Styles */
button {
    width: 100%;
    padding: 12px;
    background-color: #4CAF50;
    border: none;
    color: white;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #45a049;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    h2 {
        font-size: 20px;
    }

    .form-section h3 {
        font-size: 16px;
    }

    input[type="text"],
    input[type="email"],
    input[type="tel"],
    input[type="file"],
    textarea {
        font-size: 14px;
        padding: 8px;
    }

    button {
        font-size: 14px;
        padding: 10px;
        }
}