body{font-family:Arial,Helvetica,sans-serif;margin:0;background:#f4f6f8;color:#222}
header{background:#0a2540;color:#fff;padding:20px}
header h1{margin:0}
nav a{color:#fff;margin-right:15px;text-decoration:none;font-weight:bold}
.container{max-width:1100px;margin:auto;padding:20px}
.card{background:#fff;padding:20px;margin-bottom:20px;border-radius:8px;box-shadow:0 2px 6px rgba(0,0,0,.1)}
.ads{background:#e9eef5;border:2px dashed #b6c2d1;padding:25px;text-align:center;margin:20px 0}
footer{background:#0a2540;color:#fff;text-align:center;padding:20px;margin-top:40px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.button{background:#0073e6;color:#fff;padding:10px 15px;border-radius:6px;text-decoration:none}