:root{--bg:#0f1724;--card:#0b1220;--muted:#9aa4b2;--accent:#0ea5a4;--white:#f8fafc}
*{box-sizing:border-box}
body{font-family:Inter,system-ui,Segoe UI,Roboto,"Helvetica Neue",Arial;color:var(--white);margin:0;background:linear-gradient(180deg,#071226 0%, #071a2a 100%)}
a{color:inherit;text-decoration:none}
header{position:sticky;top:0;z-index:100;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background:rgba(7,18,38,0.55);border-bottom:1px solid rgba(255,255,255,0.03);transition:background 0.3s ease,box-shadow 0.3s ease;padding:10px 0}
header.scrolled{background:rgba(7,18,38,0.75);box-shadow:0 6px 18px rgba(2,6,23,0.5)}
.container{max-width:1200px;margin:0 auto;padding:20px}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:46px;height:46px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-weight:800;overflow:hidden}
.logo img{height:46px;width:auto;display:block}
nav ul{display:flex;gap:18px;list-style:none;padding:0;margin:0;font-weight:600;color:var(--muted)}
nav a{position:relative;text-decoration:none;color:var(--muted);padding:8px 6px;transition:color 0.3s ease}
nav a::after{content:"";position:absolute;left:0;bottom:4px;width:0%;height:2px;background:linear-gradient(90deg,var(--accent),#06b6d4);transition:width 0.3s ease;border-radius:2px}
nav a:hover{color:var(--accent)}nav a:hover::after{width:100%}
.hero{display:grid;grid-template-columns:1fr 420px;gap:28px;padding:56px 0;align-items:center}
.hero h1{font-size:clamp(1.6rem,3.8vw,2.6rem);margin:0;line-height:1.05}
p.lead{color:var(--muted);margin:10px 0;font-size:1.05rem}
.btn{padding:10px 16px;border-radius:10px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn-primary{background:linear-gradient(90deg,var(--accent),#06b6d4);color:#022;box-shadow:0 6px 18px rgba(13,148,136,0.12)}
.section{padding:48px 0;opacity:0;transform:translateY(30px);transition:opacity 0.8s ease,transform 0.8s ease}
.section.revealed{opacity:1;transform:translateY(0)}
.section h2{position:relative;display:inline-block;font-size:clamp(1.4rem,2.5vw,2rem);margin-bottom:14px}
.section h2::after{content:"";display:block;width:60px;height:3px;background:linear-gradient(90deg,var(--accent),#06b6d4);margin-top:6px;border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform 0.6s ease}
.section h2.revealed::after{transform:scaleX(1)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:rgba(255,255,255,0.02);padding:18px;border-radius:12px;border:1px solid rgba(255,255,255,0.04);text-align:center}
.product-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.partners-carousel{overflow:hidden;position:relative;width:100%;padding:12px 0}
.partners-track{display:flex;gap:48px;align-items:center;animation:scrollLogos 25s linear infinite}
.partner-logo{filter:grayscale(100%);opacity:0.85;transition:filter 0.3s ease,opacity 0.3s ease,transform 0.3s ease;max-height:70px;width:auto}
.partner-logo:hover{filter:grayscale(0%);opacity:1;transform:scale(1.05)}
@keyframes scrollLogos{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
@media (max-width:900px){.hero{grid-template-columns:1fr;}.grid-3{grid-template-columns:1fr}.partners-track{gap:32px}.partner-logo{max-height:50px}}
/* scroll-to-top button */
#scrollTopBtn{position:fixed;right:20px;bottom:80px;width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#06b6d4);color:#022;font-size:18px;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;pointer-events:none;box-shadow:0 6px 18px rgba(13,148,136,0.25);transition:opacity 0.3s ease,transform 0.3s ease;z-index:60}
#scrollTopBtn.show{opacity:1;pointer-events:auto;transform:translateY(0)}
#scrollTopBtn:hover{transform:scale(1.08)}
.whatsapp{position:fixed;right:18px;bottom:18px;background:#25d366;width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#022;font-weight:700;box-shadow:0 8px 24px rgba(37,211,102,0.14);z-index:60}
footer{border-top:1px solid rgba(255,255,255,0.03);padding:18px 0;margin-top:36px;color:var(--muted)}
.footer-grid{display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}