*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Poppins',sans-serif;
}

body{
    display:flex;
    justify-content:center;
    align-items:center;
    min-height:100vh;
    background:linear-gradient(135deg,#0f172a,#1e293b);
}

.container{
    width:90%;
    max-width:450px;
    background:rgba(255,255,255,0.08);
    backdrop-filter:blur(12px);
    padding:35px;
    border-radius:20px;
    text-align:center;
    box-shadow:0 0 25px rgba(0,191,255,.3);
}

h1{
    color:#38bdf8;
    margin-bottom:15px;
}

p{
    color:#ddd;
    margin-bottom:20px;
}

input{
    width:100%;
    padding:15px;
    border:none;
    outline:none;
    border-radius:10px;
    font-size:16px;
    background:#0f172a;
    color:#fff;
    margin-bottom:20px;
}

button{
    width:100%;
    padding:14px;
    border:none;
    border-radius:10px;
    background:#38bdf8;
    color:#fff;
    font-size:17px;
    font-weight:600;
    cursor:pointer;
    transition:.3s;
}

button:hover{
    background:#0ea5e9;
}

#qrCode{
    margin-top:25px;
    display:flex;
    justify-content:center;
    align-items:center;
    min-height:220px;
}

#qrCode img{
    width:220px;
    background:#fff;
    padding:12px;
    border-radius:12px;
}

.back-btn{
    display:block;
    margin-top:25px;
    padding:12px;
    text-decoration:none;
    background:#22c55e;
    color:#fff;
    border-radius:10px;
    font-weight:600;
    transition:.3s;
}

.back-btn:hover{
    background:#16a34a;
}

@media(max-width:480px){

.container{
    padding:25px;
}

h1{
    font-size:28px;
}

#qrCode img{
    width:180px;
}

}