:root{--navy:#082f3d;--ink:#102a34;--teal:#0a6b72;--gold:#e8a72b;--mist:#edf4f3;--paper:#fbfcfa;--line:#c9d9d6;--muted:#536a72}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:1rem/1.6 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--teal);text-underline-offset:3px}.wrap{width:min(1160px,calc(100% - 40px));margin:auto}.topline{height:5px;background:linear-gradient(90deg,var(--gold),#f3ce68 45%,var(--teal))}.header{background:white;border-bottom:1px solid var(--line)}.nav{min-height:76px;display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--navy);font-size:1.25rem;font-weight:850;letter-spacing:-.035em}.mark{display:grid;place-items:center;width:39px;height:39px;border-radius:10px;background:var(--navy);color:var(--gold);font-size:1.65rem;line-height:1}.navlinks{display:flex;align-items:center;gap:22px}.navlinks a{text-decoration:none;font-size:.94rem;font-weight:700}.navlinks [aria-current]{color:var(--navy);border-bottom:3px solid var(--gold)}.lang{border:1px solid var(--line);border-radius:999px;padding:8px 13px;background:white;font:inherit;font-size:.9rem;font-weight:750;color:var(--navy);cursor:pointer}.crumbs{display:flex;flex-wrap:wrap;gap:9px;font-size:.9rem;color:var(--muted);margin:28px 0 14px}.crumbs a{text-decoration:none}.page-title{margin:0;color:var(--navy);font-size:clamp(2rem,4vw,3.1rem);line-height:1.15;letter-spacing:-.04em}.intro{margin:14px 0 28px;max-width:740px;color:var(--muted);font-size:1.1rem}.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:24px;margin:30px 0 44px}.tool-card{border:1px solid var(--line);border-top:5px solid var(--teal);border-radius:10px;padding:32px;background:white;max-width:780px}.tool-label{font-size:.9rem;font-weight:750;color:var(--teal)}.tool-card h2{font-size:1.8rem;line-height:1.25;letter-spacing:-.03em;color:var(--navy);margin:14px 0}.tool-card p{color:var(--muted);margin:0 0 22px}.tool-facts{display:flex;gap:18px;flex-wrap:wrap;margin:0 0 26px;padding:0;list-style:none;font-size:.95rem}.tool-facts strong{color:var(--navy)}.btn{display:inline-flex;text-decoration:none;align-items:center;justify-content:center;padding:11px 18px;border-radius:7px;font-weight:750;border:1px solid var(--navy);background:var(--navy);color:white}.btn.secondary{color:var(--navy);background:white;border-color:var(--line)}.tool-note{border-left:4px solid var(--gold);background:var(--mist);padding:16px 22px;color:var(--muted);margin:0 0 44px}.tool-note p{margin:0}.footer{border-top:1px solid var(--line);padding:23px 0;font-size:.9rem;color:var(--muted)}.foot{display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap}.foot strong{color:var(--navy)}.lookup-main{width:min(1480px,calc(100% - 32px));margin:0 auto}.lookup-main .crumbs{margin:20px 0 10px}.lookup-header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:12px}.lookup-header h1{font-size:clamp(1.5rem,3vw,2rem);margin:0;line-height:1.2;color:var(--navy);letter-spacing:-.03em}.lookup-header p{margin:5px 0 0;color:var(--muted);font-size:.94rem}.lookup-header .btn{flex-shrink:0;font-size:.9rem}.lookup-frame{display:block;width:100%;height:max(780px,calc(100vh - 220px));border:1px solid var(--line);border-radius:10px;background:white;margin-bottom:24px}.lookup-footer{margin-bottom:22px;color:var(--muted);font-size:.9rem}.lookup-footer p{margin:0}.skip-link{position:absolute;left:16px;top:-60px;padding:10px 16px;background:var(--navy);color:white;z-index:20}.skip-link:focus{top:12px}a:focus-visible,button:focus-visible,iframe:focus-visible{outline:3px solid var(--gold);outline-offset:4px}[data-bn]{display:none}body.bn [data-en]{display:none}body.bn [data-bn]{display:revert}body.bn{font-family:"Noto Sans Bengali","Hind Siliguri",system-ui,sans-serif}
@media(max-width:700px){.wrap{width:calc(100% - 28px)}.nav{padding:13px 0;min-height:72px;flex-wrap:wrap;gap:12px}.brand{font-size:1.1rem}.navlinks{gap:14px;font-size:.9rem;flex-wrap:wrap}.navlinks .optional{display:none}.tool-card{padding:24px}.lookup-main{width:calc(100% - 20px)}.lookup-header{align-items:flex-start;flex-direction:column;gap:12px}.lookup-frame{height:1100px;border-radius:6px}.intro{font-size:1rem}.crumbs{margin-top:22px}}