:root{
  --blue: #005bea;
  --lightblue: #e6f0ff;
  --text:#222;
  --accent:#25d366;
  --container:1100px;
}
*{box-sizing:border-box}
body{font-family: Arial, Helvetica, sans-serif; color:var(--text); margin:0; background:#fafafa; line-height:1.6}
.container{max-width:var(--container); margin:0 auto; padding:18px}
.site-header{background:var(--blue); color:#fff}
.header-inner{display:flex; align-items:center; justify-content:space-between; gap:20px}
.brand .logo{height:64px}
.main-nav a{color:#fff; margin-left:18px; text-decoration:none; font-weight:600}
.hero{display:flex; gap:30px; align-items:center; padding:40px 18px}
.hero-left{flex:1}
.hero-right{flex:1; text-align:center}
.hero h1{font-size:42px; margin:0 0 10px}
.lead{font-size:18px; color:#333}
.lab-photo{max-width:100%; border-radius:8px; box-shadow:0 6px 18px rgba(0,0,0,0.07)}
.map-section{padding:20px 18px; text-align:center}
.india-map{max-width:360px; width:100%;}
.map-caption{font-weight:700;margin-top:8px}
.quick{list-style:none;padding:0;margin:18px 0}
.quick li{margin:6px 0}
.whatsapp{display:inline-block;background:var(--accent);color:#fff;padding:8px 14px;border-radius:6px;text-decoration:none;margin-top:6px}
.highlights{padding:30px 18px}
.grid-3{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:14px}
.card{background:#fff;padding:16px;border-radius:8px;box-shadow:0 3px 10px rgba(0,0,0,0.05)}
.content{padding:30px 18px;background:#fff; margin:18px 0}
.services-list{list-style:disc; padding-left:18px}
.contact-form input, .contact-form button{display:block; width:100%; max-width:420px; padding:10px; margin:8px 0; border-radius:6px; border:1px solid #ddd}
.contact-form button{background:var(--blue); color:white; border:none; cursor:pointer}
.site-footer{background:#003466;color:#fff;padding:18px;text-align:center;margin-top:18px}

/* responsive */
@media(max-width:800px){
  .hero{flex-direction:column}
  .header-inner{flex-direction:column; align-items:flex-start}
  .brand .logo{height:56px}
  .main-nav{display:flex; gap:10px; margin-top:6px}
}