body{
margin:0;background:#eef3f7;font-family:Arial,Helvetica,sans-serif;color:#333}
.container{max-width:760px;margin:0 auto;padding:20px}
header{text-align:center;background:#1f4e78;color:#fff;border-radius:12px;padding:30px}
h1{font-size:54px;margin:0}
h2{margin:8px 0 0;font-weight:normal}
.tagline{font-style:italic;font-size:20px}
main{margin-top:30px}
.btn{
display:block;background:#1f4e78;color:#fff;text-decoration:none;
padding:18px;margin:14px 0;border-radius:10px;
font-size:22px;font-weight:bold;text-align:center}
.btn:hover{background:#2f6796}
.primary{background:#2d8a3d;font-size:28px}
.primary:hover{background:#3aa94d}
.sub{text-align:center;margin-top:-6px;margin-bottom:24px;color:#555}
.disabled{background:#9ca7b3;cursor:default;pointer-events:none}
.disabled span{font-size:15px;font-weight:normal}
footer{text-align:center;color:#666;margin:40px 0 10px}