:root{--navy:#12284C;--navy2:#1C3561;--navy3:#0C1C37;--green:#1F7A45;--green2:#2E9E5B;--mint:#8FD9AE;--ink:#1B2333;--muted:#4A5568;--line:#E3E7EE;--bg:#F5F7FA}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,sans-serif;color:var(--ink);line-height:1.6;background:#fff}
h1,h2,h3{font-family:'Space Grotesk',sans-serif;line-height:1.2;margin:0}
a{color:var(--navy)}a:hover{color:var(--green)}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
section{padding:96px 0}
.eyebrow{margin:0 0 12px;font-size:.85rem;letter-spacing:.16em;font-weight:600;color:var(--green);text-transform:uppercase}
.h2{font-size:clamp(1.8rem,3vw,2.5rem);color:var(--navy);margin-bottom:16px}
.lead{color:var(--muted);max-width:680px;margin:0 0 48px}
.btn{display:inline-block;text-decoration:none;padding:14px 26px;border-radius:8px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.18)}
.btn-green{background:var(--green);color:#fff}.btn-green:hover{color:#fff;background:#18663A}
.btn-ghost{border:1px solid #5A6E91;color:#fff}.btn-ghost:hover{color:#fff;border-color:#fff}
.btn-navy{background:var(--navy);color:#fff}.btn-navy:hover{color:#fff}

/* header */
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:14px 24px;max-width:1200px;margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand b{display:block;font-family:'Space Grotesk',sans-serif;font-size:1.4rem;color:var(--navy);line-height:1.1}
.brand small{display:block;font-size:.68rem;letter-spacing:.18em;color:var(--muted);font-weight:600}
nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;align-items:center;gap:6px 24px;font-size:.95rem;font-weight:500}
nav a{text-decoration:none;padding:10px 0;display:inline-block}

/* hero */
.hero{background:radial-gradient(1200px 600px at 85% 20%,#1F3F75 0%,var(--navy) 55%,var(--navy3) 100%);color:#fff;padding:96px 0 104px;overflow:hidden;position:relative}
.hero .wrap{display:flex;flex-wrap:wrap;gap:48px;align-items:center}
.hero-text{flex:999 1 520px;min-width:0}
.hero h1{font-size:clamp(2.2rem,4.6vw,3.6rem);margin-bottom:24px}
.hero h1 span{color:var(--mint)}
.hero p.sub{font-size:1.15rem;color:#D5DCE8;max-width:620px;margin:0 0 36px}
.hero-art{flex:1 1 360px;min-width:0;display:flex;justify-content:center}
.hero-art svg{width:100%;max-width:440px;height:auto}
.pulse{animation:pulse 3s ease-in-out infinite}
.pulse.d1{animation-delay:.6s}.pulse.d2{animation-delay:1.2s}.pulse.d3{animation-delay:1.8s}.pulse.d4{animation-delay:2.4s}
@keyframes pulse{0%,100%{opacity:.35}50%{opacity:1}}
.flow{stroke-dasharray:6 8;animation:flow 6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-140}}
.float{animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px}
.tags span{font-size:.85rem;padding:6px 14px;border:1px solid #3A5285;border-radius:999px;color:#C9D2E1}

/* stats */
.stats{background:var(--navy3);color:#fff;padding:40px 0}
.stats .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;text-align:center}
.stats b{display:block;font-family:'Space Grotesk',sans-serif;font-size:2.4rem;color:var(--mint)}
.stats span{font-size:.92rem;color:#C9D2E1}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;transition:transform .25s,box-shadow .25s,border-color .25s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(18,40,76,.12);border-color:#C8D3E3}
.card::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--green2);transition:width .3s}
.card:hover::after{width:100%}
.icon{width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.icon svg{width:34px;height:34px}
.i-navy{background:#E6ECF5;color:var(--navy)}.i-green{background:#E3F4EA;color:var(--green)}.i-amber{background:#FDF1DC;color:#9A5B00}
.card h3{font-size:1.2rem;color:var(--navy);margin-bottom:10px}
.card p{margin:0;color:var(--muted)}
.badge{display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.06em;color:var(--green);background:#E3F4EA;border-radius:999px;padding:3px 10px;margin-bottom:12px}

/* split sections */
.split{display:flex;flex-wrap:wrap;gap:56px;align-items:center}
.split > div{flex:1 1 420px;min-width:0}
.feature{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-top:1px solid var(--line)}
.feature:first-child{border-top:0}
.feature .icon{width:48px;height:48px;border-radius:12px;margin:0;flex:none}
.feature .icon svg{width:24px;height:24px}
.feature h3{font-size:1.1rem;color:var(--navy);margin-bottom:4px}
.feature p{margin:0;color:var(--muted)}
.art{background:var(--bg);border-radius:20px;padding:24px;display:flex;justify-content:center}
.art svg{width:100%;max-width:460px;height:auto}

.ai{background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
.green-sec{background:#F1F8F3}
.green-sec .h2{color:#123D25}

/* sectors */
.sectors{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.sector{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:24px 16px;border:1px solid var(--line);border-radius:14px;background:#fff;font-weight:600;color:var(--navy);transition:transform .2s}
.sector:hover{transform:translateY(-4px)}
.sector svg{width:36px;height:36px;color:var(--green)}

/* about */
.about{background:var(--bg)}
.about img{width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;border-radius:16px;display:block;box-shadow:0 20px 40px rgba(18,40,76,.15)}
.cv{display:flex;flex-direction:column;gap:14px;margin-top:28px}
.cv div{display:flex;flex-wrap:wrap;gap:16px;border-top:1px solid #D5DBE5;padding-top:14px}
.cv b{color:var(--navy);min-width:200px}
.cv span{color:var(--muted);flex:1 1 280px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px;counter-reset:s}
.step{position:relative;padding-top:56px}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:0;left:0;width:40px;height:40px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-family:'Space Grotesk',sans-serif;font-weight:700}
.step h3{font-size:1.15rem;color:var(--navy);margin-bottom:8px}
.step p{margin:0;color:var(--muted)}

/* contact */
.contact{background:radial-gradient(900px 500px at 10% 0%,#1F3F75 0%,var(--navy) 60%);color:#fff}
.contact .wrap{display:flex;flex-wrap:wrap;gap:48px;align-items:center;justify-content:space-between}
.contact .h2{color:#fff}
.clist{flex:1 1 320px;min-width:0;display:flex;flex-direction:column;gap:18px}
.clist small{display:block;font-size:.78rem;letter-spacing:.14em;color:var(--mint);font-weight:600}
.clist a{color:#fff}
footer{background:var(--navy3);color:#AEB9CC;font-size:.85rem}
footer .wrap{padding:24px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (max-width:700px){header{position:static}section{padding:72px 0}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}
@keyframes spin{to{transform:rotate(360deg)}}
.lang{font-weight:600;border:1px solid var(--line);border-radius:999px;padding:6px 14px!important}
/* engagements */
.eng{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.eng .card h3{margin-bottom:4px}
.eng .meta{font-size:.85rem;color:var(--green);font-weight:600;margin:0 0 12px}
.eng ul{margin:0;padding-left:18px;color:var(--muted)}
.eng li{margin:4px 0}
.kind{display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.06em;border-radius:999px;padding:3px 10px;margin-bottom:12px}
.k-m{background:#E3F4EA;color:var(--green)}.k-l{background:#E6ECF5;color:var(--navy)}
/* insights */
.post-card{display:flex;flex-direction:column;text-decoration:none;color:inherit}
.post-card .cat{font-size:.78rem;font-weight:600;letter-spacing:.1em;color:var(--green);text-transform:uppercase;margin-bottom:8px}
.post-card .more{margin-top:16px;font-weight:600;color:var(--navy)}
.page-hero{background:radial-gradient(1000px 500px at 85% 0%,#1F3F75 0%,var(--navy) 60%);color:#fff;padding:72px 0}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:12px}
.page-hero p{color:#D5DCE8;max-width:680px;margin:0}
.article{max-width:760px;margin:0 auto;padding:64px 24px;font-size:1.06rem}
.article h2{font-size:1.5rem;color:var(--navy);margin:36px 0 12px}
.article p,.article li{color:#2D3748}
.article .by{display:flex;align-items:center;gap:12px;margin-bottom:32px;color:var(--muted);font-size:.95rem}
.article .by img{width:48px;height:48px;border-radius:50%;object-fit:cover}
.article .cta{margin-top:48px;padding:28px;border-radius:14px;background:var(--bg);border:1px solid var(--line)}
/* bengali */
html[lang=bn] body{font-family:'Hind Siliguri','Noto Sans Bengali',Inter,sans-serif;line-height:1.75}
html[lang=bn] h1,html[lang=bn] h2,html[lang=bn] h3{font-family:'Hind Siliguri','Noto Sans Bengali','Space Grotesk',sans-serif;line-height:1.35}
html[lang=bn] .eyebrow{letter-spacing:.04em}