:root{--ink:#0e1b2a;--muted:#607085;--paper:#f7f9fc;--brand:#156f62;--gold:#f3b84b;--soft:#eaf3f0;--line:#dce4ec;--shadow:0 16px 42px rgba(24,42,62,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans Bengali",system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.72}.skip{position:absolute;left:-9999px}.skip:focus{left:1rem;top:1rem;background:#fff;padding:.7rem 1rem;z-index:10}.wrap{max-width:1120px;margin:auto;padding:0 28px}.nav{position:sticky;top:0;z-index:5;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.nav-in{max-width:1180px;margin:auto;min-height:72px;padding:10px 28px;display:flex;align-items:center;gap:24px}.brand{font-weight:850;font-size:1.2rem;color:var(--ink);text-decoration:none}.nav nav{display:flex;gap:20px;margin-left:auto}.nav a,footer a{color:var(--ink)}.lang-switch{display:flex;border:1px solid #cedbd7;border-radius:999px;padding:3px;background:#edf3f1}.lang-switch button{border:0;border-radius:999px;padding:7px 11px;background:transparent;color:var(--ink);cursor:pointer}.lang-switch button[aria-pressed="true"]{background:var(--brand);color:#fff}.lang-switch button:focus-visible,a:focus-visible{outline:3px solid var(--gold);outline-offset:3px}.hero{padding:96px 0 86px;color:#fff;background:radial-gradient(circle at 82% 18%,#5d927a,transparent 32%),linear-gradient(135deg,#0d2c38,#125d55)}.eyebrow,.kicker{color:#a56e0c;font-size:.76rem;letter-spacing:.12em;font-weight:850;text-transform:uppercase}.hero .eyebrow{color:#f4cf77}.hero h1{font-size:clamp(2.25rem,6vw,4.7rem);line-height:1.1;max-width:920px;margin:.4rem 0 1.2rem;letter-spacing:-.035em}.lead{font-size:clamp(1.05rem,2vw,1.3rem);color:#d8e8e5;max-width:780px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.button{display:inline-flex;padding:12px 18px;border-radius:999px;background:var(--gold);color:#172433;text-decoration:none;font-weight:800}.button.secondary{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}.section{padding:72px 0}.soft{background:var(--soft)}.section h2{font-size:clamp(1.65rem,4vw,2.55rem);line-height:1.2;margin:.25rem 0 1.3rem;letter-spacing:-.025em}.content-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,.8fr);gap:32px;align-items:start}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px}.prose p{color:#42556b;font-size:1.02rem}.fact-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow)}dl{margin:0 0 18px}dl div{padding:13px 0;border-bottom:1px solid var(--line)}dt{font-size:.78rem;color:var(--muted);font-weight:750}dd{margin:3px 0 0;font-weight:760;overflow-wrap:anywhere}.text-link{color:var(--brand);font-weight:800}.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;list-style:none;padding:0;margin:28px 0 0}.feature-list li{background:#fff;border:1px solid #d5e4df;border-radius:16px;padding:24px;font-weight:720}.feature-list li:before{content:'✓';display:block;color:var(--brand);font-size:1.35rem;margin-bottom:8px}.related-section{border-top:1px solid var(--line)}.related{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.related-card{display:flex;flex-direction:column;gap:7px;padding:24px;border:1px solid var(--line);background:#fff;border-radius:16px;color:var(--ink);text-decoration:none;box-shadow:var(--shadow)}.related-card span{color:var(--muted)}footer{background:#091921;color:#aebec4;padding:27px 0}.footer-in{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}footer a{color:#d9e7ea}@media(max-width:820px){.nav-in{align-items:flex-start;flex-wrap:wrap}.nav nav{order:3;width:100%;margin:0;overflow:auto}.content-grid,.two-col,.feature-list,.related{grid-template-columns:1fr}.hero{padding:68px 0}.wrap,.nav-in{padding-left:18px;padding-right:18px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}