:root{--brand:#0b6b6b;--muted:#6b7280}
*{box-sizing:border-box}
body{font-family:Inter,system-ui,Roboto,Arial,sans-serif;margin:0;color:#0f172a;background:#f8fafc}
.wrap{max-width:1100px;margin:0 auto;padding:20px}
.site-header{background:linear-gradient(90deg,var(--brand),#0b4b8b);color:#fff}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:700;color:#fff;text-decoration:none}
.main-nav a{color:rgba(255,255,255,0.95);text-decoration:none;margin-left:18px;font-weight:600}
.hero{padding:40px 20px;border-radius:10px}
.card{background:#fff;padding:20px;border-radius:12px;box-shadow:0 6px 18px rgba(15,23,42,0.06);margin-top:20px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:20px}
.btn{display:inline-block;padding:10px 14px;background:var(--brand);color:#fff;border-radius:8px;text-decoration:none;font-weight:700}
.site-footer{padding:20px 0;color:var(--muted);text-align:center;margin-top:28px}
.main-nav a:hover,.btn:hover{opacity:0.9}
.contact-form label{display:block;margin-top:10px}
.contact-form input,.contact-form textarea{width:100%;padding:10px;margin-top:6px;border-radius:6px;border:1px solid #e6eef2}
@media (max-width:900px){.main-nav{display:none}.site-header .wrap{justify-content:space-between}}