body { font-family: Arial, sans-serif; margin:0; padding:0; line-height:1.6; }
.hero { background:#0a2a43; color:#fff; padding:40px 20px; text-align:center; }
.hero h1 { font-size:2em; margin-bottom:10px; }
.offer { font-size:1.2em; margin:10px 0; }
.btn-whatsapp { background:#25d366; color:#fff; padding:12px 20px; border-radius:8px; text-decoration:none; font-weight:bold; }
.benefits { padding:30px 20px; text-align:center; }
.grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:15px; margin-top:20px; }
.card { background:#f4f4f4; padding:20px; border-radius:10px; }
.how, .testimonials { padding:30px 20px; background:#eef2f3; }
footer { background:#0a2a43; color:#fff; text-align:center; padding:20px; margin-top:30px; }
@media(max-width:600px){ .hero h1{font-size:1.5em;} .offer{font-size:1em;} }