*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,"Noto Sans Gujarati",sans-serif;color:#24352b;background:#fff;line-height:1.65}
a{text-decoration:none;color:inherit}
header{position:sticky;top:0;z-index:10;background:#fff;border-bottom:1px solid #e7eee9}
.nav{max-width:1120px;margin:auto;padding:10px 18px;display:flex;align-items:center;gap:18px}
.logo{width:58px;height:58px;object-fit:contain}
.brand{flex:1}.brand strong{display:block;color:#176b3a;font-size:19px}.brand span{font-size:12px;color:#65756b}
nav{display:flex;gap:15px;align-items:center;flex-wrap:wrap}
nav a{font-size:14px;color:#365245}
nav a:hover{color:#176b3a}
select{padding:7px 9px;border:1px solid #cddbd2;border-radius:8px;background:#fff}
.hero{background:linear-gradient(135deg,#eef9f1,#fff);padding:72px 18px}
.wrap{max-width:1120px;margin:auto}
.hero h1{font-size:42px;line-height:1.2;color:#145d34;margin:0 0 16px}
.hero p{max-width:760px;font-size:18px;color:#506158}
.btn{display:inline-block;background:#176b3a;color:#fff;padding:11px 18px;border-radius:9px;margin:8px 8px 0 0}
.btn.alt{background:#e5f3e9;color:#176b3a}
section{padding:62px 18px}
.section-label{color:#21804a;font-weight:700;margin-bottom:5px}
h2{font-size:30px;color:#145d34;margin:0 0 18px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border:1px solid #e0ebe3;border-radius:15px;padding:22px;box-shadow:0 5px 18px rgba(30,80,50,.06)}
.card h3{margin-top:0;color:#176b3a}
.about{display:grid;grid-template-columns:1.3fr .7fr;gap:28px;align-items:center}
.about-logo{text-align:center}.about-logo img{max-width:260px;width:100%}
.nat-hero{background:#f3faf5}
.nat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.icon{font-size:28px}
.note{background:#fff8e8;border-left:4px solid #d39a22;padding:16px;border-radius:8px}
footer{background:#123d26;color:#eaf5ee;padding:30px 18px;text-align:center}
.small{font-size:13px;color:#718078}
@media(max-width:850px){.grid,.nat-grid{grid-template-columns:repeat(2,1fr)}.about{grid-template-columns:1fr}nav{display:none}.hero h1{font-size:34px}}
@media(max-width:560px){.grid,.nat-grid{grid-template-columns:1fr}.nav{gap:8px}.brand strong{font-size:16px}.hero{padding:52px 18px}}