body{

margin:0;
padding:0;
background:#f4f6fa;
font-family:Arial;

}

.container{

width:450px;
max-width:95%;
margin:40px auto;
background:#fff;
padding:30px;
border-radius:10px;
box-shadow:0 0 20px rgba(0,0,0,.15);
text-align:center;

}

h1{

margin-bottom:25px;

}

input{

width:100%;
padding:14px;
font-size:18px;
border:1px solid #ccc;
border-radius:5px;
outline:none;
box-sizing:border-box;

}

button{

margin-top:20px;
padding:14px 30px;
background:#1e88e5;
border:none;
color:white;
font-size:18px;
border-radius:5px;
cursor:pointer;

}

button:hover{

background:#1565c0;

}

#barcode{

margin-top:30px;

}

#downloadLink{

display:inline-block;
margin-top:20px;
background:#28a745;
padding:12px 25px;
color:white;
text-decoration:none;
border-radius:5px;

}

#downloadLink:hover{

background:#218838;

}