body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f7fa;color:#333}
header{background:#4f46e5;color:#fff;text-align:center;padding:40px 20px}
.container{max-width:900px;margin:auto;padding:30px}
section{background:#fff;padding:25px;margin-bottom:20px;border-radius:8px;box-shadow:0 4px 10px rgba(0,0,0,.05)}
h2{color:#4f46e5}
footer{text-align:center;background:#111827;color:#d1d5db;padding:20px}
a{color:#4f46e5;text-decoration:none}