*{box-sizing:border-box}
body{
margin:0;
font-family:Arial,sans-serif;
background:linear-gradient(180deg,#0f172a,#111827);
color:white;
text-align:center;
}
.hero{
padding:70px 20px;
background:linear-gradient(135deg,#25D366,#2563EB);
}
.logo{font-size:32px;font-weight:bold}
h1{font-size:42px}
button,a{
background:#25D366;
color:#06120a;
padding:16px 30px;
border-radius:40px;
border:0;
font-weight:bold;
cursor:pointer;
text-decoration:none;
}
section{padding:40px 20px}
.grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
gap:20px;
max-width:900px;
margin:auto;
}
.card,.unlock{
background:#1e293b;
padding:30px;
border-radius:25px;
font-size:22px;
box-shadow:0 10px 30px #0004;
}
small{font-size:14px;color:#ccc}
.unlock{max-width:600px;margin:40px auto}
.locked{
opacity:.4;
pointer-events:none;
}
#progress{
font-size:30px;
margin:20px;
color:#25D366;
}