body {
background: url('https://media.istockphoto.com/id/509430084/es/foto/el-karate-chica-con-de-la-correa-negra.jpg?s=612x612&w=0&k=20&c=nfG72UxCrBix2GcKXNQwkfcMjc7fxMhbJRbTcWkGbi4=') no-repeat center center fixed;
background-size: cover;
min-height: 100vh;
}

.header {
background-color: rgba(211, 211, 211, 0.9);
padding: 15px 0;
margin-bottom: 30px;
}
        
.footer {
background-color: rgba(173, 216, 230, 0.9);
padding: 15px 0;
margin-top: 30px;
}

.registration-form {
background-color: rgba(255, 255, 255, 0.95);
padding: 30px;
border-radius: 10px;
box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}
        
.logo {
height: 60px;
position: absolute;
left: 20px;
top: 10px;
}

.photo-preview, .qr-preview {
width: 150px;
height: 150px;
border: 1px dashed #ccc;
display: flex;
align-items: center;
justify-content: center;
margin-bottom: 10px;
background-color: #f8f9fa;
}
        
.photo-preview img, .qr-preview img {
max-width: 100%;
max-height: 100%;
}

.qr-code-box {
border: 1px solid #ddd;
padding: 10px;
height: 200px;
width: 200px;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}

#emailQrCode {
width: 150px;
height: 150px;
}

.qr-code-label {
font-size: 12px;
margin-top: 5px;
text-align: center;
}

@media (max-width: 768px) {
 .logo {
 position: static;
 display: block;
 margin: 0 auto 15px;
 }
            
 .header h1 {
 text-align: center;
 }
}