:root{--navy:#12306B;--blue:#2F7FD1;--ink:#172036;--muted:#5F6C88;--bg:#F5FBF9;--card:#fff;--line:#D9E6F6;--sky:#E3F1FB;--deep:#0B2150}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Poppins','Hind Siliguri',system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
html[lang=bn] body{font-family:'Hind Siliguri','Poppins',sans-serif}
.en,.bn{display:none}
html[lang=en] .en,html[lang=bn] .bn{display:revert}
a{color:var(--blue)}
img{max-width:100%;height:auto}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:10;background:rgba(245,251,249,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 20px;max-width:1040px;margin:auto}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--navy);text-decoration:none}
.brand img{height:42px}
nav{display:flex;gap:4px;align-items:center}
nav a{text-decoration:none;color:var(--navy);font-weight:500;font-size:14.5px;padding:7px 11px;border-radius:9px}
nav a:hover,nav a.on{background:var(--sky)}
.lang{border:1px solid var(--blue);background:#fff;color:var(--blue);border-radius:99px;padding:5px 14px;font:inherit;font-weight:600;cursor:pointer;margin-left:6px}
.menu{display:none;border:1px solid var(--line);background:#fff;border-radius:9px;padding:6px 12px;font:inherit;color:var(--navy);cursor:pointer}
@media(max-width:860px){.menu{display:block}nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;padding:10px 20px 16px;border-bottom:1px solid var(--line)}nav.open{display:flex}.lang{margin:6px 0 0;align-self:flex-start}}
.hero{text-align:center;padding:54px 0 46px;background:radial-gradient(600px 400px at 10% 0,rgba(176,236,214,.7),transparent 70%),radial-gradient(600px 400px at 95% 30%,rgba(186,226,247,.7),transparent 70%)}
.badge{width:150px;height:150px;border-radius:50%;background:#fff;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 10px rgba(47,127,209,.08),0 14px 30px rgba(18,48,107,.15)}
.badge img{width:110px}
h1{margin:0;color:var(--navy);font-size:clamp(28px,6vw,50px);letter-spacing:2px;text-transform:uppercase;text-wrap:balance;line-height:1.2}
html[lang=bn] h1{letter-spacing:0;text-transform:none}
.tag{color:var(--blue);font-weight:600;margin:12px 0 0;font-size:18px}
.lead{max-width:640px;margin:16px auto 26px;color:var(--muted)}
.btn{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;font-weight:600;padding:12px 26px;border-radius:12px;margin:4px}
.btn.alt{background:#fff;color:var(--navy);border:1px solid var(--line)}
.page-head{padding:40px 0 28px;background:linear-gradient(180deg,#E8F7F1,var(--bg))}
.page-head h1{font-size:clamp(26px,5vw,40px);letter-spacing:1px}
.page-head p{color:var(--muted);max-width:680px;margin:10px 0 0}
section{padding:46px 0}
h2{color:var(--navy);font-size:clamp(22px,4vw,30px);margin:0 0 8px;text-wrap:balance;line-height:1.3}
h3{margin:0 0 6px;color:var(--navy);font-size:18px}
.sub{color:var(--muted);margin:0 0 24px;max-width:680px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.grid.two{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 8px 22px rgba(18,48,107,.07);position:relative;min-width:0}
.card p{margin:0 0 8px;color:var(--muted);font-size:15px}
.card p:last-child{margin:0}
.card::before{content:"";position:absolute;left:22px;top:0;width:48px;height:5px;border-radius:0 0 5px 5px;background:var(--blue)}
.alt-bg{background:var(--sky)}
.pill{display:inline-block;background:var(--sky);color:var(--navy);font-size:12.5px;font-weight:600;border-radius:99px;padding:2px 11px;margin-bottom:8px}
.alt-bg .pill{background:#fff}
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
@media(max-width:760px){.split{grid-template-columns:1fr}}
.photo{width:100%;border-radius:16px;display:block;box-shadow:0 10px 26px rgba(18,48,107,.16)}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px}
.gallery figure{margin:0}
.gallery figcaption{font-size:14px;color:var(--muted);margin-top:6px}
ul.tick{list-style:none;padding:0;margin:0}
ul.tick li{padding-left:26px;position:relative;margin:7px 0;color:var(--muted);font-size:15px}
ul.tick li::before{content:"";position:absolute;left:4px;top:.6em;width:8px;height:8px;border-radius:50%;background:var(--blue)}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.fact{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px}
.fact b{display:block;color:var(--navy);font-size:20px}
.fact span{color:var(--muted);font-size:14px}
.row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid #E2ECF8;font-size:15px}
.row:last-child{border:0}
.row .k{color:var(--muted)}
.row b{text-align:right;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.logo2{height:54px;display:block;margin:0 0 10px}
.copy{border:1px solid var(--line);background:#fff;border-radius:8px;padding:2px 10px;font:inherit;font-size:13px;color:var(--blue);cursor:pointer;margin-left:6px}
.note{font-size:14px;color:var(--muted);margin-top:14px}
.quote{border-left:4px solid var(--blue);background:#fff;border-radius:0 14px 14px 0;padding:16px 20px;margin:0;color:var(--ink)}
.quote cite{display:block;margin-top:8px;color:var(--muted);font-style:normal;font-size:14px}
table{border-collapse:collapse;width:100%;font-size:15px}
td,th{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--navy);font-size:13px;letter-spacing:.5px;text-transform:uppercase}
.tw{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:14px}
.dl{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.dl a{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--navy);text-decoration:none;font-weight:500;font-size:14.5px;padding:9px 16px;border-radius:10px}
footer{background:var(--deep);color:#cfdbf5;padding:36px 0 26px;font-size:14px}
footer .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px}
footer b{color:#fff}
footer a{color:#fff}
footer h4{margin:0 0 8px;color:#fff;font-size:15px}
footer .cp{margin-top:22px;border-top:1px solid #243a6b;padding-top:14px;text-align:center}