body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    margin: 0;
}

.box {
    background: #ffffffdd; /* slightly transparent white for modern feel */
    padding: 30px 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
}

.box:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

h2 {
    margin-bottom: 20px;
    font-size: 24px;
    color: #333;
}

input {
    padding: 12px 15px;
    width: 100%;
    max-width: 300px;
    margin: 10px 0 20px 0;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 16px;
    outline: none;
    transition: border 0.3s, box-shadow 0.3s;
}

input:focus {
    border: 1px solid #007bff;
    box-shadow: 0 0 8px rgba(0, 123, 255, 0.3);
}

button {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    background: linear-gradient(45deg, #007bff, #00c6ff);
    color: white;
    font-size: 16px;
    transition: background 0.3s, transform 0.2s;
}

button:hover {
    background: linear-gradient(45deg, #0056b3, #0084c2);
    transform: scale(1.05);
}

#qrBox {
    margin-top: 20px;
}

img {
    margin-top: 15px;
    max-width: 200px;
    border-radius: 10px;
    transition: transform 0.3s;
}

img:hover {
    transform: scale(1.05);
}