.slogan {
    font-style: italic;
    font-size: 24px;
    color: #FFD700;
    margin-top: 10px;
}
body{font-family:Arial,sans-serif;margin:0;background:#f5f7fa}
header{background:#0b3d91;color:#fff;padding:40px;text-align:center}
nav{background:#123;padding:10px;text-align:center}
nav a{color:#fff;margin:0 8px;text-decoration:none}
main{max-width:1100px;margin:auto;padding:20px}
.card{background:#fff;padding:20px;border-radius:10px;margin:15px 0}