body{
margin:0;
font-family:Arial;
background:linear-gradient(135deg,#1e3c72,#2a5298);
color:white;
display:flex;
justify-content:center;
align-items:center;
height:100vh;
}
.card{
background:rgba(255,255,255,0.1);
padding:30px;
border-radius:15px;
text-align:center;
box-shadow:0 0 20px rgba(0,0,0,0.3);
}
input,button{
padding:10px;
margin:10px;
border:none;
border-radius:5px;
}
button{cursor:pointer;}
.whatsapp{
display:block;
margin-top:15px;
color:#25D366;
text-decoration:none;
font-weight:bold;
}
#countdown{font-size:22px;margin:15px;}