:root{--gold:#d4af37;--dark:#050607;--muted:#9aa0a6}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#0b0b0b;color:#f4f4f4}
.header{background:linear-gradient(90deg,#0b0b0b,#111);padding:18px 24px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:60px}
.nav a{color:#f4f4f4;text-decoration:none;margin-left:16px}
.banner{position:relative;overflow:hidden}
.banner img{width:100%;height:auto;display:block}
.banner .cta{position:absolute;left:50%;top:60%;transform:translate(-50%,-50%);background:rgba(0,0,0,0.6);padding:18px 26px;border-radius:8px;border:2px solid var(--gold)}
.banner .cta h1{margin:0;font-size:28px;color:var(--gold)}
.container{max-width:1100px;margin:28px auto;padding:0 18px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.card{background:#0f0f0f;padding:16px;border-radius:10px;border:1px solid rgba(212,175,55,0.08)}
footer{padding:20px;background:#070707;color:#bfbfbf;text-align:center;margin-top:28px}
.whatsapp-btn{position:fixed;right:18px;bottom:18px;background:var(--gold);color:#000;padding:14px;border-radius:50%;box-shadow:0 6px 18px rgba(0,0,0,0.4);text-decoration:none;font-weight:700}