:root{--blue:#0757d6;--navy:#08245a;--text:#20324d;--muted:#64748b;--line:#d9e6f7;--soft:#f5f9ff;--orange:#fd7e14;--shadow:0 18px 42px rgba(7,87,214,.14)}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,"Noto Sans Bengali","Noto Sans",sans-serif;background:#fff;color:var(--text);font-size:16px;line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{width:min(1180px,calc(100% - 40px));margin:auto}
.top-strip{background:var(--blue);color:#fff;font-size:14px}
.top-strip .wrap{display:flex;justify-content:space-between;gap:16px;padding:8px 0}
.site-header{position:sticky;top:0;z-index:20;background:#fff;box-shadow:0 8px 28px rgba(8,38,95,.06)}
.header-inner{min-height:86px;display:flex;align-items:center;gap:28px}
.brand,.footer-brand{font-weight:900;color:var(--blue);font-size:44px;letter-spacing:0;line-height:1}
.main-nav{display:flex;align-items:center;justify-content:center;gap:22px;flex:1;font-weight:800;color:#0d2852;white-space:nowrap}
.main-nav a{padding:10px 0;border-bottom:3px solid transparent}
.main-nav a[aria-current=page]{color:var(--blue);border-color:var(--blue)}
.header-actions,.hero-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 24px;border-radius:8px;border:1px solid #b9cde7;font-weight:900;white-space:nowrap}
.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 14px 30px rgba(7,87,214,.22)}
.btn-line{background:#fff;color:var(--navy)}
.hero{border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff 0%,#fbfdff 100%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(340px,560px);gap:48px;align-items:center;min-height:620px;padding:56px 0}
.hero-copy h1,.subhero h1{margin:8px 0 22px;color:var(--navy);font-size:58px;line-height:1.18;letter-spacing:0}
.hero-copy p,.subhero p{font-size:20px;color:#4d5f78;max-width:660px}
.eyebrow{margin:0;color:var(--blue);font-weight:900;text-transform:uppercase;font-size:14px;letter-spacing:0}
.hero-media{border-radius:8px;overflow:hidden;box-shadow:var(--shadow);background:#eef5ff}
.hero-media img{width:100%;height:420px;object-fit:contain;background:#fff}
.trust-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px;max-width:620px}
.trust-row div{border-left:3px solid var(--blue);padding-left:14px}
.trust-row b{display:block;color:var(--blue)}
.trust-row span,.meta,.crumb,.article-figure figcaption{color:var(--muted);font-size:14px}
.feature-strip{background:#fff;padding:34px 0;border-bottom:1px solid var(--line)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 16px 36px rgba(8,38,95,.07)}
.feature-grid article{padding:26px;border-right:1px solid var(--line);min-height:150px}
.feature-grid article:last-child{border-right:0}
.feature-grid span,.card-mark{display:inline-flex;align-items:center;justify-content:center;min-width:48px;height:32px;border-radius:8px;background:#ecf4ff;color:var(--blue);font-weight:900;font-size:12px}
.feature-grid h2,.category-card h3,.sidebar h2,.article-shell h2{color:var(--navy);line-height:1.25}
.section{padding:62px 0}
.section-head{max-width:780px;margin-bottom:28px}
.section-head h2,.split-grid h2,.faq-band h2{margin:0 0 10px;color:var(--navy);font-size:36px;line-height:1.15}
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.category-card,.sidebar section,.update-card,.article-shell,.related-box,.note,.mini-grid div{border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 12px 30px rgba(8,38,95,.06)}
.category-card{padding:24px;display:flex;flex-direction:column;min-height:270px}
.category-card p{color:#52657d;flex:1}
.category-card a{font-weight:900;color:var(--blue);margin-top:10px}
.split-band{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.split-grid{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:40px;align-items:center}
.split-grid img,.subhero img,.article-figure img{border-radius:8px;box-shadow:var(--shadow);width:100%;object-fit:cover}
.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}
.update-list{display:grid;gap:16px}
.update-card{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:16px}
.update-thumb{display:flex;align-items:center;justify-content:center;border-radius:8px;background:linear-gradient(135deg,var(--blue),#0b2d75);color:#fff;font-weight:900}
.tag{display:inline-flex;border-radius:8px;background:#fff2e8;color:#9a4c00;padding:4px 10px;font-size:12px;font-weight:900}
.update-card h3{margin:8px 0;color:var(--navy);font-size:22px;line-height:1.25}
.meta{display:flex;gap:16px;flex-wrap:wrap}
.pager{margin-top:22px;color:var(--blue);font-weight:900}
.sidebar{display:grid;gap:18px}
.sidebar section{padding:22px}
.sidebar a,.quick-link{display:flex;gap:10px;align-items:center;border-top:1px solid var(--line);padding:12px 0;font-weight:800;color:var(--navy)}
.quick-link span{min-width:52px;color:var(--blue);font-size:12px}
.faq-band{background:#fbfdff}
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
details{border:1px solid var(--line);border-radius:8px;background:#fff;padding:18px}
summary{cursor:pointer;color:var(--navy);font-weight:900}
.subhero{background:#fff;border-bottom:1px solid var(--line)}
.subhero-grid{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:42px;align-items:center;padding:54px 0}
.subhero img{height:300px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
.article-layout>*,.content-grid>*,.split-grid>*{min-width:0}
.article-shell{padding:30px}
.article-shell h1{color:var(--navy);font-size:46px;line-height:1.1}
.summary-box{margin:18px 0;padding:18px;border-left:4px solid var(--blue);background:#f4f8ff;border-radius:8px;color:#36506f;font-weight:700}
.article-figure{margin:22px 0}
.article-figure img{max-height:420px}
.note{padding:20px;margin:22px 0;background:#f8fbff}
.note.strong{border-color:rgba(253,126,20,.35);background:linear-gradient(180deg,#fff7ef,#f7fbff)}
.table-wrap{max-width:100%;overflow:auto;border:1px solid var(--line);border-radius:8px;margin:18px 0}
table{width:100%;border-collapse:collapse;min-width:620px;background:#fff}
th,td{padding:14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:var(--navy);color:#fff}
.related-box{padding:20px;margin:22px 0;background:#f9fcff}
.related-box a{font-weight:900;color:var(--blue)}
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.mini-grid div{padding:18px}
.mini-grid b{display:block;color:var(--blue)}
.site-footer{background:#071f4d;color:#dceaff;padding:46px 0 18px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:28px}
.footer-grid h2{font-size:18px;color:#fff}
.footer-grid a{display:block;margin:8px 0;color:#dceaff}
.copyright{display:flex;justify-content:space-between;border-top:1px solid rgba(255,255,255,.16);margin-top:26px;padding-top:18px;color:#a9c5ee}
.sticky-side{position:sticky;top:112px}
@media(max-width:980px){.header-inner{flex-wrap:wrap;padding:16px 0}.main-nav{order:3;width:100%;overflow-x:auto;justify-content:flex-start;scrollbar-width:none}.main-nav::-webkit-scrollbar{display:none}.hero-grid,.subhero-grid,.split-grid,.content-grid,.article-layout{grid-template-columns:1fr}.hero-grid{min-height:0}.feature-grid,.category-grid,.faq-grid,.footer-grid{grid-template-columns:1fr 1fr}.hero-copy h1,.subhero h1{font-size:44px}.subhero img{height:auto}.sticky-side{position:static}}
@media(max-width:620px){.wrap{width:min(100% - 28px,1180px)}.top-strip .wrap,.copyright{display:block}.brand{font-size:36px}.header-actions{width:100%}.btn{flex:1;padding:0 14px}.hero-grid{padding:36px 0;gap:24px}.hero-copy h1,.subhero h1{font-size:40px}.hero-media img{height:260px}.trust-row,.feature-grid,.category-grid,.faq-grid,.footer-grid,.mini-grid{grid-template-columns:1fr}.feature-grid article{border-right:0;border-bottom:1px solid var(--line)}.feature-grid article:last-child{border-bottom:0}.update-card{grid-template-columns:1fr}.update-thumb{min-height:110px}.article-shell{padding:20px}.article-shell h1{font-size:32px}.section{padding:42px 0}}