body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#020617;color:#e2e8f0;line-height:1.7}
header{position:sticky;top:0;background:rgba(2,6,23,0.9);backdrop-filter:blur(14px);padding:14px 40px;border-bottom:1px solid rgba(255,255,255,0.08);display:flex;align-items:center;gap:12px}
header img{height:36px}
nav{margin-left:auto}
nav a{margin-right:18px;color:#cbd5f5;text-decoration:none;font-size:14px}
.hero{padding:140px 20px;text-align:center;background:radial-gradient(circle at top,#0f766e,#020617)}
.section{padding:80px 20px;max-width:1100px;margin:auto}
.footer{background:#020617;border-top:1px solid rgba(255,255,255,0.08);padding:60px 20px;margin-top:80px}
.footer-columns{display:flex;flex-wrap:wrap;gap:40px;max-width:1100px;margin:auto}
.footer img{height:40px;margin-bottom:10px}
.footer a{color:#cbd5f5;text-decoration:none}
.whatsapp{
position:fixed;bottom:20px;right:20px;background:#25D366;color:white;
padding:14px 16px;border-radius:50%;font-size:20px;text-decoration:none;
box-shadow:0 10px 25px rgba(0,0,0,0.4)
}