*{margin:0;padding:0;box-sizing:border-box;font-family:Arial,sans-serif}
body{
background:linear-gradient(135deg,#081226,#101d3d);
min-height:100vh;
display:flex;
justify-content:center;
align-items:center;
padding:20px;
}
.card{
background:#111b34;
color:#fff;
width:100%;
max-width:420px;
padding:30px 25px;
border-radius:24px;
text-align:center;
box-shadow:0 0 25px rgba(0,0,0,.35);
}
.icon{font-size:48px;margin-bottom:10px}
h1{font-size:32px;margin-bottom:10px}
.sub{opacity:.8;margin-bottom:20px}
ul{text-align:left;line-height:2;list-style:none;margin-bottom:25px}
.btn{
display:block;
background:#25D366;
color:#000;
font-weight:bold;
text-decoration:none;
padding:16px;
border-radius:50px;
}
.small{margin-top:15px;font-size:12px;opacity:.7}