:root{--green-900:#07412a;--green-700:#0b5d3b;--green-600:#12774c;--green-100:#e8f4ed;--green-50:#f3faf6;--gold:#c9a227;--gold-light:#e0b84a;--text:#1d2b25;--muted:#53645c;--white:#fff;--border:#d5e6dc;--font:'Hind Siliguri','Noto Sans Bengali',system-ui,sans-serif;--radius:14px;--radius-sm:8px;--shadow:0 4px 16px rgba(7,65,42,.10);--shadow-lg:0 10px 30px rgba(7,65,42,.18);--space:clamp(2.5rem,6vw,4.5rem);--maxw:1180px}*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{margin:0;font-family:var(--font);color:var(--text);background:#fff;line-height:1.75;font-size:1.05rem;overflow-x:hidden}img{max-width:100%;display:block}a{color:var(--green-700)}h1,h2,h3,h4{line-height:1.35;margin:0 0 .5rem;color:var(--green-900)}p{margin:0 0 1rem}.container{width:min(100% - 2rem,var(--maxw));margin-inline:auto}:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:4px}.skip-link{position:absolute;left:-999px;top:0;background:var(--gold);color:#000;padding:.6rem 1rem;z-index:2000}.skip-link:focus{left:0}.btn{display:inline-flex;align-items:center;gap:.4rem;font-family:inherit;font-size:1rem;font-weight:600;padding:.65rem 1.3rem;border-radius:999px;border:2px solid transparent;cursor:pointer;text-decoration:none;transition:.2s}.btn-gold{background:var(--gold-light);color:#2b2200}.btn-gold:hover{background:#f0c95a;transform:translateY(-2px)}.btn-outline{background:transparent;color:#fff;border-color:#fff}.btn-outline:hover{background:#fff;color:var(--green-900)}.btn-green{background:var(--green-700);color:#fff}.btn-green:hover{background:var(--green-900)}.btn-sm{padding:.4rem 1rem;font-size:.92rem}.topbar{background:var(--green-900);color:#e9f5ee;font-size:.9rem}.topbar .container{display:flex;flex-wrap:wrap;gap:.3rem 1.5rem;justify-content:space-between;align-items:center;padding-block:.4rem}.topbar a{color:var(--gold-light);font-weight:600}.site-header{position:sticky;top:0;z-index:1000;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.08);border-bottom:3px solid var(--gold)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:.5rem}.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:inherit;min-width:0}.emblem{flex:0 0 auto;width:52px;height:52px;border-radius:50%;background:var(--green-700);border:3px solid var(--gold);display:grid;place-items:center;color:var(--gold-light);font-weight:700;font-size:1.4rem}.brand-text strong{display:block;color:var(--green-900);font-size:1.1rem;line-height:1.3}.brand-text small{display:block;color:var(--muted);font-size:.82rem;line-height:1.3}.menu-toggle{display:none;background:var(--green-700);color:#fff;border:0;border-radius:var(--radius-sm);padding:.5rem 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.tag{display:inline-block;background:var(--gold-light);color:#2b2200;font-weight:600;padding:.2rem .9rem;border-radius:999px;font-size:.92rem;margin-bottom:.8rem}.hero p{font-size:1.1rem;max-width:58ch}.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.2rem}section{padding-block:var(--space)}.bg-soft{background:var(--green-50)}.section-title{text-align:center;margin-bottom:2.2rem}.section-title h2{font-size:clamp(1.5rem,3.5vw,2.1rem);display:inline-block;position:relative;padding-bottom:.6rem}.section-title h2:after{content:"";position:absolute;left:25%;right:25%;bottom:0;height:4px;border-radius:4px;background:var(--gold)}.section-title p{color:var(--muted);margin-top:.6rem}.grid{display:grid;gap:1.3rem}.cols-2{grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr))}.cols-3{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}.cols-4{grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr))}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1.4rem;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.card h3{font-size:1.2rem}.icon{font-size:1.9rem;margin-bottom:.4rem}.note{background:#fff8e1;border-left:4px solid var(--gold);padding:.7rem 1rem;border-radius:var(--radius-sm);font-size:.93rem;color:#5b4a00}.placeholder-tag{display:inline-block;background:#fff3cd;color:#6b5400;border:1px dashed var(--gold);border-radius:6px;padding:0 .5rem;font-size:.82rem;font-weight:600}.stat{text-align:center}.stat .num{font-size:1.4rem;font-weight:700;color:var(--green-700);margin:.3rem 0}.stat .label{font-weight:600}.stat small{color:var(--muted)}.head-msg{display:grid;grid-template-columns:260px 1fr;gap:2rem;align-items:start}.photo-ph{aspect-ratio:1/1;border-radius:var(--radius);background:linear-gradient(135deg,var(--green-100),#fff);border:2px dashed var(--green-600);display:grid;place-items:center;text-align:center;color:var(--green-700);padding:1rem;font-weight:600}.photo-ph span{display:block;font-size:3rem}.photo-ph img{width:100%;height:100%;object-fit:cover;border-radius:inherit}.teacher{text-align:center}.teacher .photo-ph{width:130px;margin:0 auto .8rem;border-radius:50%;overflow:hidden}.teacher .photo-ph span{font-size:2.4rem}.teacher .role{color:var(--green-600);font-weight:600}.notice{display:flex;flex-direction:column;gap:.4rem}.notice time{color:var(--muted);font-size:.9rem}.notice .btn{align-self:flex-start;margin-top:auto}.badge{display:inline-block;font-size:.78rem;background:#fff3cd;color:#6b5400;padding:0 .5rem;border-radius:6px;font-weight:600;width:fit-content}.check-list{list-style:none;padding:0;margin:0}.check-list li{padding:.35rem 0 .35rem 1.7rem;position:relative}.check-list li:before{content:"✔";position:absolute;left:0;color:var(--green-600);font-weight:700}.gallery{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(min(100%,230px),1fr))}.gallery figure{margin:0;overflow:hidden}.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover}.gallery figcaption{font-weight:600;margin-top:.5rem}.modal{position:fixed;inset:0;background:rgba(0,0,0,.82);display:none;align-items:center;justify-content:center;z-index:3000;padding:1rem}.modal.open{display:flex}.modal-box{background:#fff;border-radius:var(--radius);max-width:600px;width:100%;max-height:88vh;overflow:auto;padding:1.6rem;position:relative;border-top:6px solid var(--gold)}.modal-close{position:absolute;top:.6rem;right:.8rem;background:none;border:0;font-size:1.7rem;cursor:pointer;color:var(--muted)}form .field{margin-bottom:1rem}label{display:block;font-weight:600;margin-bottom:.25rem}input,textarea{width:100%;font-family:inherit;font-size:1rem;padding:.65rem .8rem;border:1.5px solid #b9d0c3;border-radius:var(--radius-sm);background:#fff}input:focus,textarea:focus{border-color:var(--green-600)}.form-msg{margin-top:1rem;padding:.8rem 1rem;border-radius:var(--radius-sm);background:var(--green-100);border:1px solid var(--green-600)}.contact-info p{margin-bottom:.6rem}footer{background:var(--green-900);color:#dcebe2;padding-top:2.5rem}footer h3{color:var(--gold-light);font-size:1.1rem}footer a{color:#dcebe2;text-decoration:none}footer a:hover{color:var(--gold-light);text-decoration:underline}footer ul{list-style:none;margin:0;padding:0}footer li{margin-bottom:.3rem}.foot-bottom{border-top:1px solid rgba(255,255,255,.2);margin-top:1.8rem;padding:1rem 0;text-align:center;font-size:.92rem}#toTop{position:fixed;right:1rem;bottom:1rem;width:46px;height:46px;border-radius:50%;border:0;background:var(--green-700);color:#fff;font-size:1.3rem;cursor:pointer;box-shadow:var(--shadow-lg);display:none;z-index:900}#toTop.show{display:block}@media(max-width:980px){.menu-toggle{display:block}.nav{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:3px solid var(--gold);box-shadow:0 8px 16px rgba(0,0,0,.12);display:none}.nav.open{display:block}.nav-list{flex-direction:column;padding:.5rem 1rem 1rem}.nav-list a{padding:.7rem .8rem}.head-msg{grid-template-columns:1fr}.head-msg .photo-ph{max-width:200px}}@media(max-width:520px){.brand-text small{display:none}.brand-text strong{font-size:.98rem}.hero:after{background:rgba(7,65,42,.78)}.btn{width:100%;justify-content:center}.card .btn,.notice .btn{width:auto}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}