:root{--g:#075d34;--g2:#0a7b43;--deep:#043720;--gold:#c99922;--ink:#17221b;--muted:#66736b;--soft:#f3f8f4;--line:#dce8df;--white:#fff;--shadow:0 18px 50px rgba(4,55,32,.13);--r:22px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Noto Sans Bengali","Hind Siliguri",system-ui,-apple-system,sans-serif;color:var(--ink);line-height:1.72;background:#fff}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1220px,calc(100% - 32px));margin:auto}
.top{background:var(--deep);color:#fff;font-size:14px}.top .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:7px 0}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{min-height:84px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:13px}.brand img{width:64px;height:64px;object-fit:contain}.brand strong{display:block;color:var(--deep);font-size:20px;line-height:1.2}.brand small{color:var(--muted)}.links{display:flex;align-items:center;gap:19px;font-weight:800;font-size:14px}.links a:hover{color:var(--g2)}.menu{display:none;border:0;background:#edf6f0;border-radius:12px;padding:10px 13px;font-size:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:999px;background:var(--g);color:#fff;font-weight:900;border:1px solid var(--g)}.btn:hover{background:var(--deep)}.btn.white{background:#fff;color:var(--g);border-color:#fff}.btn.outline{background:transparent;color:var(--g)}
.hero{position:relative;min-height:720px;display:grid;align-items:center;color:#fff;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,43,24,.80) 0%,rgba(2,43,24,.52) 38%,rgba(2,43,24,.08) 72%,rgba(2,43,24,0) 100%),url("assets/official-hero-v421.webp") center/cover no-repeat}.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1fr .85fr;gap:45px;align-items:center}.badge{display:inline-flex;border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.1);padding:8px 14px;border-radius:999px;font-weight:800}.hero h1{font-size:clamp(42px,6vw,74px);line-height:1.08;margin:18px 0}.hero p{font-size:20px;max-width:720px;color:#ecf7ef}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.hero-card{background:rgba(255,255,255,.95);color:var(--ink);padding:25px;border-radius:var(--r);box-shadow:var(--shadow);max-width:460px;margin-left:auto}.hero-card img{width:140px;margin:auto}.hero-card h3{text-align:center;color:var(--deep);margin:12px 0 4px}.hero-card p{text-align:center;color:var(--muted);font-size:15px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}.stat{background:#edf6f0;border-radius:14px;padding:14px 8px;text-align:center}.stat b{display:block;color:var(--g);font-size:24px}
.quick{position:relative;z-index:10;margin-top:-55px}.quick-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.quick-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:19px;text-align:center;box-shadow:var(--shadow)}.quick-card b{display:block;color:var(--g);font-size:18px}.quick-card span{font-size:13px;color:var(--muted)}
section{padding:88px 0}.section-head{max-width:800px;margin:0 auto 44px;text-align:center}.kicker{font-size:13px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:var(--g)}h2{font-size:clamp(30px,4vw,48px);line-height:1.22;margin:8px 0 14px;color:var(--deep)}.lead{font-size:18px;color:var(--muted)}.bg{background:var(--soft)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}.photo-stack{position:relative}.photo-stack img{border-radius:28px;box-shadow:var(--shadow)}.photo-stack img+img{position:absolute;width:46%;right:-20px;bottom:-38px;border:7px solid #fff}.checks{display:grid;gap:13px;margin:24px 0}.check{display:flex;gap:12px}.check b{color:var(--g)}
.grid{display:grid;gap:22px}.cards4{grid-template-columns:repeat(4,1fr)}.cards3{grid-template-columns:repeat(3,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:0 10px 28px rgba(4,55,32,.06)}.card h3{margin:0 0 8px;color:var(--deep)}.card p{margin:0;color:var(--muted)}.icon{width:48px;height:48px;border-radius:14px;background:#edf6f0;display:grid;place-items:center;font-size:23px;color:var(--g);margin-bottom:14px}
.quote{background:linear-gradient(135deg,var(--deep),var(--g));color:#fff;border-radius:32px;padding:48px}.quote h2{color:#fff}.quote p{font-size:20px;max-width:920px}
.books{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.book{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.book b{color:var(--gold);font-size:13px;letter-spacing:.08em}.book h3{margin:5px 0 8px;color:var(--deep)}.book p{font-size:14px;color:var(--muted)}
.gallery{display:grid;grid-template-columns:1.2fr .8fr .8fr;grid-template-rows:270px 270px;gap:14px}.gallery img{width:100%;height:100%;object-fit:cover;border-radius:18px}.gallery img:first-child{grid-row:1/3}
.notice-list{display:grid;gap:14px}.notice{display:flex;gap:18px;align-items:center;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:18px}.date{min-width:76px;text-align:center;background:#edf6f0;color:var(--g);padding:10px;border-radius:14px;font-weight:900}
.cta{background:linear-gradient(135deg,#07542f,#0a7b44);color:#fff;border-radius:34px;padding:55px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{color:#fff;margin:0}.cta p{margin:5px 0 0;color:#e6f6eb}
footer{background:#052f1e;color:#dcebe1;padding:64px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:35px}footer h3{color:#fff}.footer-brand img{width:88px;background:#fff;border-radius:50%;padding:3px}.footer-links{display:grid;gap:8px;color:#bfd2c5}.copy{border-top:1px solid rgba(255,255,255,.13);margin-top:38px;padding-top:20px;text-align:center;color:#9fb8a8;font-size:14px}
@media(max-width:1000px){.links{display:none;position:absolute;left:16px;right:16px;top:84px;background:#fff;padding:20px;border-radius:18px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}.links.open{display:flex}.menu{display:block}.hero .container,.split{grid-template-columns:1fr}.hero{min-height:auto;padding:100px 0 75px}.hero-card{margin-left:0}.quick-grid{grid-template-columns:repeat(2,1fr)}.quick-card:last-child{grid-column:1/3}.cards4,.books{grid-template-columns:repeat(2,1fr)}.cards3{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.gallery{grid-template-columns:1fr 1fr;grid-template-rows:240px 240px}.gallery img:first-child{grid-column:1/3;grid-row:auto}.cta{flex-direction:column;align-items:flex-start}}
@media(max-width:650px){.top{display:none}.brand strong{font-size:15px}.brand small{font-size:11px}.brand img{width:52px;height:52px}section{padding:64px 0}.hero h1{font-size:42px}.hero p{font-size:17px}.stats{grid-template-columns:1fr 1fr}.stats .stat:last-child{grid-column:1/3}.quick{margin-top:-28px}.quick-grid,.cards4,.cards3,.books,.footer-grid{grid-template-columns:1fr}.quick-card:last-child{grid-column:auto}.gallery{grid-template-columns:1fr;grid-template-rows:auto}.gallery img,.gallery img:first-child{grid-column:auto;height:230px}.photo-stack img+img{position:relative;width:76%;margin:-35px 0 0 auto;right:auto;bottom:auto}.quote,.cta{padding:30px 24px}}