/* Reset & base */
* {box-sizing: border-box}
html,body{height:100%}
body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial;line-height:1.5;color:#0f1720;background:#f7f8fb}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{background:rgba(255,255,255,0.6);backdrop-filter:blur(6px);position:sticky;top:0;z-index:40;border-bottom:1px solid rgba(15,23,32,0.05)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{font-weight:800;color:#0f1720;text-decoration:none;font-size:1.1rem}
.nav{display:flex;gap:18px}
.nav a{color:#0f1720;text-decoration:none;font-weight:600}
.nav-toggle{display:none;background:transparent;border:0;font-size:1.25rem}

/* Hero */
.hero{position:relative;min-height:64vh;display:flex;align-items:center;color:white}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(180deg,rgba(6,9,17,0.25),rgba(6,9,17,0.5)),url('https://images.unsplash.com/photo-1506784983877-45594efa4cbe?q=80&w=1600&auto=format&fit=crop&ixlib=rb-4.0.3&s=4a3b2c2f1eb6f5f3a9b2b4c3d9f6c886');background-size:cover;background-position:center;filter:contrast(1.05);z-index:0}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,10,30,0.45),rgba(10,10,30,0.25));z-index:1}
.hero-content{position:relative;z-index:2;padding:64px 20px}
.hero h1{font-size:2.2rem;margin:0 0 12px;font-weight:800}
.lead{font-size:1.1rem;max-width:720px;margin-bottom:20px;opacity:0.95}
.hero-cta .btn{margin-right:12px}

/* Buttons */
.btn{display:inline-block;padding:10px 18px;border-radius:10px;text-decoration:none;font-weight:600}
.btn.primary{background:#0f1720;color:white}
.btn.ghost{background:transparent;color:white;border:1px solid rgba(255,255,255,0.18)}

/* Sections */
.section{padding:56px 0}
.section.alt{background:linear-gradient(180deg,#ffffff 0%, #fbfdff 100%)}
.section h2{font-size:1.6rem;margin-bottom:12px}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:18px}
.card{background:white;padding:18px;border-radius:12px;box-shadow:0 6px 18px rgba(2,6,23,0.06)}

.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:18px}
.service{background:linear-gradient(180deg,#fff 0,#f7fbff 100%);padding:18px;border-radius:12px;border:1px solid rgba(15,23,32,0.04)}

.why-list{list-style:none;padding:0;margin:12px 0}
.why-list li{padding:12px 0;border-bottom:1px dashed rgba(15,23,32,0.05)}

/* Contact form */
.contact-form{max-width:640px;display:grid;gap:10px}
.contact-form input,.contact-form textarea{padding:12px;border-radius:8px;border:1px solid rgba(15,23,32,0.08);font-size:0.95rem}

/* Footer */
.site-footer{padding:18px 0;background:#ffffff;border-top:1px solid rgba(15,23,32,0.04)}
.footer-inner{display:flex;justify-content:space-between;align-items:center}
.social a{margin-left:12px;color:#0f1720;text-decoration:none;font-weight:600}

/* Responsive */
@media (max-width:800px){
  .nav{position:absolute;right:20px;top:64px;background:rgba(255,255,255,0.98);flex-direction:column;padding:12px;border-radius:10px;display:none}
  .nav.open{display:flex}
  .nav-toggle{display:block}
  .hero h1{font-size:1.6rem}
  .hero{min-height:56vh}
  .footer-inner{flex-direction:column;gap:8px}
}

@media (max-width:420px){
  .hero-content{padding:36px 16px}
}