:root{--primary:#0B1C2D;--accent:#1DA1F2;--bg:#F5F7FA}
body{font-family:Segoe UI;margin:0;background:var(--bg)}
.header{background:var(--primary);color:#fff}
.nav{display:flex;justify-content:space-between;align-items:center;padding:1rem}
.brand{display:flex;align-items:center;gap:.6rem}
.logo-img{height:40px}
.brand span{color:var(--accent)}
.menu ul{list-style:none;margin:0;padding:0;display:flex}
.menu li{margin-left:1rem}
.menu a{color:#fff;text-decoration:none}
.hero{text-align:center;background:var(--primary);color:#fff;padding:4rem}
.btn-primary{background:var(--accent);color:#fff;padding:.7rem 1.4rem;text-decoration:none;border-radius:6px}
.page{padding:3rem;text-align:center}
.footer{background:var(--primary);color:#fff;text-align:center;padding:1rem}
.whatsapp-float{position:fixed;bottom:20px;left:20px;background:#25D366;color:#fff;width:55px;height:55px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px}