*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:#f4f4f4;color:#333;line-height:1.7}
.wrap{max-width:1200px;margin:auto;padding:20px}
.hero{background:#1f2937;color:#fff;padding:50px 20px;text-align:center}
.nav{background:#111}.nav .wrap{display:flex;gap:20px;flex-wrap:wrap}
.nav a{color:#fff;text-decoration:none;padding:12px 0}
.layout{display:grid;grid-template-columns:2fr 1fr;gap:30px}
main,aside{background:#fff;padding:25px}
.featured,.adsense,.amazon,.widget,.video{border:2px dashed #bbb;padding:20px;margin:25px 0;background:#fafafa}
.video iframe{width:100%;aspect-ratio:16/9;border:0}
.btn{display:inline-block;padding:10px 18px;background:#2563eb;color:#fff;text-decoration:none;border-radius:4px}
footer{background:#222;color:#fff;text-align:center;padding:30px 0;margin-top:40px}
footer a{color:#fff}
@media(max-width:900px){.layout{grid-template-columns:1fr}.nav .wrap{justify-content:center}}