:root{--site-primary:#176B4D;--gold:#F0B84B}
:root{--ink:#20352d;--muted:#68776e;--line:#e2e8df;--soft:#edf4ed;--radius:20px;
--deep:color-mix(in srgb,var(--site-primary) 62%,#000);--light:color-mix(in srgb,var(--site-primary) 82%,#fff)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{margin:0;font-family:"Noto Sans Bengali","Hind Siliguri","Nirmala UI",system-ui,sans-serif;color:var(--ink);background:#f7f8f3}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
img{max-width:100%}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.skip{position:absolute;left:-9999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:99}
.preview-bar{margin:0;padding:8px 16px;background:#FEF3C7;color:#78350F;text-align:center;font-weight:700}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.topline{background:var(--site-primary);color:#fff;font-size:12px}
.topline-inner{display:flex;justify-content:space-between;gap:12px;padding:9px 0;align-items:center}
.topline .lang{opacity:.75;cursor:not-allowed}
.nav-wrap{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative}
.brand{display:flex;align-items:center;gap:12px;min-width:240px}
.logo{width:48px;height:48px;flex:none;border-radius:15px;display:grid;place-items:center;color:#fff;background:var(--site-primary);box-shadow:0 8px 18px #176b4d2b;overflow:hidden}
.logo svg{width:31px;height:31px}.logo img{width:100%;height:100%;object-fit:contain;background:#fff}
.logo.on-dark{background:#ffffff1b;box-shadow:none}
.brand strong{display:block;font-size:18px;line-height:1.4;font-weight:800}
.brand small{display:block;font-size:10px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-top:2px}
.navlinks{display:flex;align-items:center;gap:21px;font-size:13px;font-weight:700;flex-wrap:wrap;justify-content:flex-end}
.navlinks a{color:#3c5146;transition:color .2s;white-space:nowrap}
.navlinks a:hover,.navlinks a[aria-current]{color:var(--site-primary)}
.navlinks .contact-link{background:var(--site-primary);color:#fff;padding:12px 17px;border-radius:999px}
.navlinks .contact-link:hover,.navlinks .contact-link[aria-current]{color:#fff}
.menu-toggle{display:none;border:1px solid var(--line);background:transparent;border-radius:10px;padding:9px 11px;color:inherit;cursor:pointer}
.hero{position:relative;background:linear-gradient(110deg,var(--deep) 0%,var(--site-primary) 58%,var(--light) 100%);color:#fff;isolation:isolate}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(circle at 83% 17%,#ffffff20 0 1px,transparent 2px),radial-gradient(circle at 88% 30%,#ffffff16 0 2px,transparent 3px);background-size:27px 27px,39px 39px;-webkit-mask-image:linear-gradient(90deg,transparent 25%,#000);mask-image:linear-gradient(90deg,transparent 25%,#000)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:center;min-height:520px;padding:64px 0 72px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;border:1px solid #ffffff45;background:#ffffff12;padding:8px 13px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.02em}
.dot{width:7px;height:7px;border-radius:50%;background:var(--gold)}
.hero h1{font-size:clamp(34px,4.2vw,55px);line-height:1.35;margin:22px 0 16px;letter-spacing:-.03em}
.hero h1 span{color:var(--gold)}
.hero p{max-width:560px;color:#e1eee5;font-size:15px;line-height:1.95;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:999px;padding:13px 20px;font-weight:800;font-size:13px;cursor:pointer;transition:transform .2s,background .2s;min-height:44px}
.btn:hover{transform:translateY(-2px)}
.btn-gold{background:var(--gold);color:#173d2e}
.btn-ghost{color:#fff;border-color:#ffffff70;background:#ffffff0c}
.hero-art{position:relative;min-height:360px;display:grid;place-items:center}
.art-frame{width:min(100%,440px);aspect-ratio:1.08;border:1px solid #ffffff42;border-radius:34px;background:linear-gradient(145deg,#ffffff20,#ffffff05);padding:16px;transform:rotate(2deg)}
.art-inner{height:100%;border-radius:25px;background:linear-gradient(145deg,#f7eac8,#d8e9d6);overflow:hidden}
.art-inner img{width:100%;height:100%;object-fit:cover;display:block}
.floating-card{position:absolute;bottom:8px;left:-12px;background:#fff;color:var(--ink);padding:15px 18px;border-radius:17px;box-shadow:0 16px 45px #0c2b1c35;display:flex;gap:12px;align-items:center}
.float-icon{background:#e6f3e8;color:var(--site-primary);border-radius:12px;width:42px;height:42px;display:grid;place-items:center;font-size:21px}
.floating-card b{display:block;font-size:18px}
.floating-card small{display:block;font-size:11px;color:#64736a;margin-top:2px}
.hero-note{position:absolute;top:25px;right:-3px;color:#174532;background:#f5cc6e;padding:11px 14px;border-radius:14px;font-size:12px;font-weight:800;transform:rotate(4deg);z-index:1}
.stats{margin-top:40px;position:relative;z-index:2}
.hero+.stats{margin-top:-32px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 18px 45px #1d3a2710;overflow:hidden}
.stat{padding:24px 25px;display:flex;gap:14px;align-items:center;border-right:1px solid var(--line)}
.stat:last-child{border:0}
.stat-icon{width:45px;height:45px;display:grid;place-items:center;flex:none;border-radius:14px;background:var(--soft);font-size:21px}
.stat b{display:block;font-size:24px;line-height:1.2;color:var(--site-primary)}
.stat small{color:var(--muted);font-size:11px;display:block;margin-top:5px}
.band{padding:82px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
.kicker{color:var(--site-primary);font-weight:900;font-size:11px;text-transform:uppercase;letter-spacing:.12em;display:flex;align-items:center;gap:8px}
.kicker:before{content:"";width:24px;height:2px;background:var(--gold)}
h2,.section-head h1,.about-copy h1,.contact-grid h1{font-size:30px;line-height:1.45;letter-spacing:-.02em;margin:10px 0 0}
.notice-date{color:var(--muted);font-size:12px;font-weight:800}
.section-head p{max-width:460px;color:var(--muted);font-size:13px;line-height:1.9;margin:0}
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;align-items:center}
.about-visual{min-height:355px;border-radius:var(--radius);background:linear-gradient(135deg,#e6f0df,#f8e8bd);position:relative;overflow:hidden}
.about-visual>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.about-badge{position:absolute;bottom:20px;left:20px;background:#fff;color:var(--ink);padding:14px 18px;border-radius:15px;box-shadow:0 12px 30px #163c2720;font-size:12px;font-weight:800}
.about-copy p,.prose p,.prose li{font-size:14px;line-height:2;color:var(--muted)}
.prose{max-width:75ch}.prose a,.about-copy p a{color:var(--site-primary);font-weight:700}
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin:23px 0 27px}
.feature{display:flex;align-items:flex-start;gap:10px;font-size:12px;font-weight:800}
.check{background:#e2f2e5;color:#176b4d;width:23px;height:23px;border-radius:50%;display:grid;place-items:center;flex:none}
.text-link{color:var(--site-primary);font-size:13px;font-weight:900;display:inline-flex;gap:8px;align-items:center}
.soft-section{background:#edf3eb}
.member-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.member-grid.small{grid-template-columns:repeat(4,1fr)}
.member-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px;transition:transform .2s,box-shadow .2s}
.member-card:hover{transform:translateY(-4px);box-shadow:0 16px 35px #163c2710}
.avatar{width:72px;height:72px;border-radius:22px;background:linear-gradient(145deg,#dcecdf,#f2dca7);display:grid;place-items:center;color:#176b4d;font-size:29px;margin-bottom:17px;object-fit:cover}
.member-card h3{font-size:17px;margin:0 0 5px}
.member-card .role{font-size:11px;color:var(--site-primary);font-weight:900}
.member-card p{font-size:12px;color:var(--muted);line-height:1.8;margin:13px 0 17px}
.card-foot{padding-top:14px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:10px}
.card-foot a{color:var(--site-primary);font-weight:800}
.board-note{margin-top:22px;border-radius:15px;padding:15px 18px;background:#fff6df;color:#76571c;font-size:12px;line-height:1.8}
.board-note p,.gallery-hint p{margin:0}
.gallery-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;grid-auto-rows:180px;gap:14px}
.gallery-tile{position:relative;border-radius:18px;overflow:hidden;background:#dbe9d8;cursor:zoom-in;min-height:130px;display:block}
.gallery-tile:first-child{grid-row:span 2}
.gallery-tile img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.gallery-tile:hover img{transform:scale(1.04)}
.gallery-caption{position:absolute;bottom:0;left:0;right:0;padding:35px 15px 14px;color:#fff;font-size:12px;font-weight:900;background:linear-gradient(transparent,#102f23c9)}
.gallery-hint{color:var(--muted);font-size:11px;margin-top:13px;line-height:1.8}
.notice-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:25px;align-items:start}
.notice-layout.single{grid-template-columns:1fr}
.notice-list{display:grid;gap:12px}
.notice-item{display:grid;grid-template-columns:66px 1fr auto;gap:17px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:17px;padding:17px}
.datebox{border-radius:12px;background:var(--soft);color:var(--site-primary);text-align:center;padding:9px 5px}
.datebox b{display:block;font-size:21px;line-height:1.1}
.datebox small{font-size:10px;font-weight:900}
.notice-item h3{margin:0 0 5px;font-size:13px}
.notice-item h3 a:hover{color:var(--site-primary)}
.notice-item p{margin:0;font-size:11px;color:var(--muted);line-height:1.7}
.notice-item .pdf{color:var(--site-primary);font-weight:800}
.tag{font-size:10px;font-weight:900;padding:6px 9px;border-radius:999px;background:#fff0cf;color:#94620c;white-space:nowrap}
.notice-side{border-radius:var(--radius);padding:25px;color:#fff;background:var(--site-primary)}
.notice-side .kicker{color:var(--gold)}
.notice-side h3{margin:0 0 10px;font-size:20px}
.notice-side p{font-size:12px;line-height:1.9;color:#dbece1}
.notice-side .btn{margin-top:9px;width:100%}
.notice-detail{max-width:760px}
.lead-text{font-size:13px;line-height:1.9;color:var(--muted)}
.empty{color:var(--muted);font-size:13px}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:28px}
.contact-cards{display:grid;gap:12px;margin-top:25px}
.contact-card{display:flex;align-items:center;gap:13px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:15px}
.contact-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:var(--soft);font-size:19px;flex:none}
.contact-card small{display:block;font-size:10px;color:var(--muted);margin-bottom:4px}
.contact-card b{font-size:12px}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.form-title{margin:8px 0 22px;font-size:20px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:grid;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:11px;font-weight:900}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:11px;background:#fbfcfa;color:inherit;padding:12px 13px;outline:none;font-size:12px}
.field input:focus,.field textarea:focus{border-color:var(--site-primary);box-shadow:0 0 0 3px #176b4d18}
.field textarea{min-height:105px;resize:vertical}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.flash{margin:0 0 14px;padding:12px 14px;border-radius:11px;background:var(--soft);color:var(--site-primary);font-size:12px;font-weight:800}
.map iframe{width:100%;height:360px;border:0;border-radius:var(--radius)}
.img{margin:0}.img img{max-width:100%;height:auto;border-radius:var(--radius);display:block}
figcaption{color:var(--muted);font-size:11px;margin-top:8px}
.footer{background:var(--deep);color:#fff;padding:48px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.25fr .8fr .8fr 1fr;gap:30px;padding-bottom:35px}
.footer .brand{min-width:0}
.footer .brand small{color:#b5cdbd}
.footer p{font-size:11px;line-height:1.9;color:#c6d9cd}
.footer h4{font-size:12px;margin:5px 0 16px}
.footer-links{display:grid;gap:11px;font-size:11px;color:#c6d9cd}
.footer-links a:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid #ffffff25;padding-top:17px;display:flex;justify-content:space-between;gap:15px;color:#b5cdbd;font-size:10px}
.modal{position:fixed;inset:0;background:#071c12d9;z-index:90;display:none;place-items:center;padding:20px}
.modal.open{display:grid}
.modal-box{max-width:720px;width:100%;background:#fff;color:#20352d;padding:20px;border-radius:18px}
.modal-top{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:12px}
.modal-top button{border:0;background:#edf4ed;border-radius:50%;width:36px;height:36px;cursor:pointer}
.modal-art{width:100%;max-height:70vh;object-fit:contain;border-radius:12px;display:block}
@media (max-width:980px){.navlinks{gap:12px;font-size:11px}.brand{min-width:200px}.hero-grid{gap:22px}.stat{padding:20px 14px}.stat b{font-size:21px}.footer-grid{grid-template-columns:1fr 1fr}.member-grid.small{grid-template-columns:repeat(3,1fr)}}
@media (max-width:760px){.container{width:min(100% - 30px,560px)}.topline-inner{justify-content:center;text-align:center}.topline-inner span:nth-child(2),.topline-inner span:last-child{display:none}.nav{min-height:70px}.brand{min-width:0}.brand strong{font-size:15px}.logo{width:42px;height:42px}
.js .menu-toggle{display:block}.navlinks{position:static;width:100%;justify-content:flex-start;padding-bottom:12px}
.js .navlinks{display:none;position:absolute;top:70px;left:-15px;right:-15px;padding:17px 20px 22px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;box-shadow:0 18px 25px #0000000d}
.js .navlinks.open{display:flex}.js .navlinks a{padding:12px 5px}.navlinks .contact-link{text-align:center}.js .navlinks .contact-link{margin-top:8px}
.nav{flex-wrap:wrap}.js .nav{flex-wrap:nowrap}
.hero-grid{grid-template-columns:1fr;padding:50px 0 55px;min-height:0}.hero h1{font-size:37px}.hero-art{min-height:300px;margin-top:10px}.art-frame{width:min(100%,390px)}.floating-card{left:0;bottom:-4px}.hero-note{right:0}
.hero+.stats,.stats{margin-top:15px}.stat-grid{grid-template-columns:1fr 1fr}.stat{border-bottom:1px solid var(--line)}.stat:nth-child(2){border-right:0}.stat:nth-child(3),.stat:nth-child(4){border-bottom:0}
.band{padding:60px 0}.section-head{display:block}.section-head p{margin-top:12px}h2,.section-head h1,.about-copy h1,.contact-grid h1{font-size:26px}
.about-grid,.notice-layout,.contact-grid{grid-template-columns:1fr;gap:27px}.about-visual{min-height:300px}.member-grid,.member-grid.small{grid-template-columns:1fr}.member-card{padding:20px}
.gallery-grid{grid-template-columns:1fr 1fr;grid-auto-rows:145px}.notice-item{grid-template-columns:55px 1fr;gap:12px}.notice-item .tag{grid-column:2;justify-self:start}
.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px}.footer-bottom{flex-direction:column}}
@media (max-width:400px){.stat{gap:9px;padding:15px 10px}.stat-icon{width:37px;height:37px;font-size:17px}.stat b{font-size:18px}.stat small{font-size:10px}.gallery-grid{grid-auto-rows:125px;gap:9px}.footer-grid{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.member-card,.gallery-tile img{transition:none}}