body{margin:0;font-family:Inter,sans-serif;background:#f8fafc;color:#111}

/* HEADER */
.main-header{position:sticky;top:0;z-index:999;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,0.05)}
.container{display:flex;justify-content:space-between;align-items:center;padding:15px 20px}
.logo{font-weight:700;color:#2563eb}
.nav{display:none;flex-direction:column;position:absolute;top:60px;left:0;width:100%;background:#fff;padding:15px}
.nav a{padding:10px 0;text-decoration:none;color:#333}
.nav a.active{color:#2563eb;font-weight:700}
.menu-toggle{font-size:22px;cursor:pointer}
.cta-header{display:none;background:#2563eb;color:#fff;padding:10px 15px;border-radius:8px;text-decoration:none}

/* HERO */
.hero{padding:40px 20px;text-align:center}
.hero img{width:100%;border-radius:15px;margin-top:20px}
.btn{display:block;background:#2563eb;color:#fff;padding:15px;border-radius:10px;text-decoration:none;margin-top:15px}

/* SECTION */
.section{padding:40px 20px;text-align:center}
.services{display:flex;flex-direction:column;gap:15px}
.card{background:#fff;padding:20px;border-radius:12px;box-shadow:0 5px 15px rgba(0,0,0,0.05)}

/* FLOAT */
.floating{position:fixed;bottom:80px;right:15px;background:#25D366;color:#fff;padding:14px 18px;border-radius:50px;text-decoration:none}

/* STICKY */
.sticky{position:fixed;bottom:0;left:0;width:100%;background:#2563eb;color:#fff;display:flex;justify-content:space-between;padding:10px}
.sticky a{background:#fff;color:#2563eb;padding:10px;border-radius:8px;text-decoration:none}

/* DESKTOP */
@media(min-width:768px){
.nav{display:flex !important;position:static;flex-direction:row}
.nav a{margin-left:20px}
.menu-toggle{display:none}
.cta-header{display:inline-block}
.hero{display:flex;justify-content:space-between;text-align:left;padding:80px 50px}
.hero-text{max-width:50%}
.hero img{width:45%}
.services{display:grid;grid-template-columns:repeat(3,1fr)}
}