:root{--blue:#004a75;--yellow:#ffc107;--green:#25D366;--text:#222}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:#fff}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.site-header{background:#fff;border-bottom:1px solid #eee;position:sticky;top:0;z-index:20}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#111;font-weight:700}
.brand img{height:40px;width:auto;border-radius:6px}
.main-nav .nav-link{margin-left:16px;text-decoration:none;color:#333;font-weight:600}
.main-nav .nav-link.active{color:var(--blue)}
.hero{position:relative;min-height:70vh;background-size:cover;background-position:center;display:flex;align-items:center;justify-content:center}
.hero .overlay{position:absolute;inset:0;background:rgba(0,0,0,.35)}
.hero-content{position:relative;text-align:center;color:#fff;padding:20px}
.hero h1{font-size:40px;margin:0 0 10px}
.hero p{font-size:18px;margin:0 0 16px}
.contact-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 18px;border-radius:8px;text-decoration:none;font-weight:700}
.btn.primary{background:var(--yellow);color:#000}
.btn.ghost{border:2px solid #fff;color:#fff}
.promo{margin-top:12px;font-size:16px}
.content{padding:32px 0}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:16px}
.card{border:1px solid #eee;border-radius:10px;padding:16px;box-shadow:0 2px 6px rgba(0,0,0,.03)}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;list-style:none;padding:0;margin:16px 0}
.grid-2{display:grid;grid-template-columns:1fr;gap:20px}
label{font-weight:600;margin-top:10px;display:block}
input,textarea{width:100%;padding:10px;border:1px solid #ccc;border-radius:8px}
.site-footer{background:#f7f7f7;border-top:1px solid #eee;margin-top:30px}
.site-footer .container{padding:18px 0;text-align:center;font-size:14px;color:#555}
.whatsapp-float{position:fixed;right:18px;bottom:18px;background:var(--green);color:#fff;border-radius:999px;padding:12px 16px;text-decoration:none;font-weight:700;box-shadow:0 6px 18px rgba(37,211,102,.35);z-index:50}
.whatsapp-float:hover{background:#1ebe5a}
@media(min-width:760px){.grid-2{grid-template-columns:1fr 1fr} .hero h1{font-size:56px}}