/* এআই নিউজবিডি — সাইটের স্টাইল */
:root{
  --ink:#111318; --body:#1f232b; --soft:#3a3f49; --muted:#555b66;
  --rule:#e3e5ea; --surface:#f5f6f8; --bg:#ffffff;
  --amber:#FDB116; --amber-ink:#7a4f00; --dark:#0b0f17;
  --diplo:#1e3a8a; --diplo-bg:#eef2fb; --diplo-rule:#dbe2f3;
  --sans:'Noto Sans Bengali',system-ui,sans-serif;
  --serif:'Noto Serif Bengali','Noto Sans Bengali',serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6}
img{max-width:100%}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--amber-ink)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
.wrap{max-width:1280px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
.narrow{max-width:820px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.muted{color:var(--muted)} .small{font-size:14px}
h1,h2,h3{font-family:var(--serif);line-height:1.35}

/* top bar */
.topbar{background:var(--dark);color:#d9dde6;font-size:14px}
.topbar__in{display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;padding-top:9px;padding-bottom:9px}
.topbar a{color:#d9dde6} .topbar .muted{color:#9aa3b8}
.eds{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.ed{padding:2px 12px;border-radius:999px;border:1px solid #3a4256;font-weight:600}
.ed--done{border-color:#6b7489;color:#fff}
.ed--now{background:var(--amber);border-color:var(--amber);color:var(--ink)}
.social{display:flex;gap:18px}

/* header — newspaper masthead: white ground, two-tone wordmark (amber + black), thin amber rule; black nav bar */
.site-header{position:relative;z-index:10;background:#fff}
.masthead{background:#fff;color:var(--ink);border-bottom:3px solid var(--amber)}
.header__in{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-top:20px;padding-bottom:18px}
.brand{display:flex;align-items:center;gap:16px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand img{width:72px;height:72px;object-fit:contain}
.brand > span{display:flex;flex-direction:column;gap:4px}
.wordmark{font-family:'Anek Bangla',var(--serif);font-weight:800;font-size:44px;line-height:1.05;letter-spacing:0;display:flex;align-items:baseline;gap:8px}
.wm-ai{color:#F5A800;text-shadow:0 1px 0 rgba(17,19,24,.22)}
.wm-rest{color:var(--ink)}
.brand .motto{font-family:var(--serif);font-weight:700;font-size:16px;color:#3a3f49;display:flex;align-items:center;gap:10px}
.brand .motto::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--amber);flex:none}
.search{display:flex;gap:8px;align-items:center}
.search input{font:inherit;font-size:15px;padding:10px 14px;border:1px solid #c9cdd6;border-radius:10px;width:230px;min-height:44px;background:#fff}
.search button{min-width:44px;min-height:44px;border:0;border-radius:10px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer}
.search--big{margin:16px 0 24px}.search--big input{flex:1;width:auto;font-size:17px;border-color:#c9cdd6}
.search--big button{color:#fff}
.masthead a:focus-visible,.masthead button:focus-visible,.masthead input:focus-visible{outline-color:var(--ink)}
.navbar{background:var(--ink)}
.mainnav > ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:0 2px}
.mainnav li{position:relative}
.mainnav > ul > li > a,.sub-toggle{display:flex;align-items:center;gap:6px;padding:13px 14px 11px;font-weight:600;font-size:16px;color:#f4f1ea;border-bottom:3px solid transparent;min-height:48px}
.mainnav > ul > li > a:hover,.sub-toggle:hover{color:var(--amber)}
.mainnav a[aria-current],.sub-toggle[aria-current]{color:var(--amber);border-bottom-color:var(--amber)}
.sub-toggle{font:inherit;font-weight:600;background:none;border-top:0;border-left:0;border-right:0;cursor:pointer}
.submenu{display:none;position:absolute;top:100%;left:0;min-width:280px;background:#fff;border:1px solid var(--rule);border-top:3px solid var(--amber);border-radius:0 0 14px 14px;box-shadow:0 18px 40px rgba(17,19,24,.2);padding:8px;list-style:none;margin:0;z-index:20}
.has-sub:hover .submenu,.has-sub:focus-within .submenu,.has-sub.open .submenu{display:block}
.submenu a{display:flex;justify-content:space-between;gap:12px;border-radius:10px;padding:12px 14px;color:var(--ink);font-weight:600}
.submenu a:hover{background:#fff4d6;color:var(--ink)}
.submenu small{font-size:13px;color:var(--muted);font-weight:500}
.submenu__all{color:var(--diplo)!important;font-weight:700}

/* ticker */
.ticker{background:#fff8e6;border-bottom:1px solid #f1dfae}
.ticker__in{display:flex;gap:16px;align-items:center;padding-top:10px;padding-bottom:10px;overflow:hidden}
.ticker__tag{flex:none;background:var(--amber);color:var(--ink);font-weight:700;font-size:14px;padding:3px 12px;border-radius:6px}
.ticker__items{display:flex;gap:14px;white-space:nowrap;overflow:hidden;font-weight:600;font-size:15px;mask-image:linear-gradient(90deg,#000 85%,transparent)}

/* common */
.cat{font-size:13px;font-weight:700;font-family:var(--sans)}
.meta{font-size:14px;color:var(--muted)}
.dek{font-size:18px;line-height:1.75;color:var(--soft);margin:0}
.thumb{display:block;width:100%;height:100%;object-fit:cover;background:var(--dark)}
.thumb--text{display:flex;align-items:flex-end;padding:14px;background:linear-gradient(135deg,var(--c),#0b0f17 85%);color:#fff;font-weight:700;font-family:var(--serif)}
.sec-title{margin:0 0 6px;font-size:28px;font-weight:800;display:flex;align-items:center;gap:12px}
.sec-title.sm{font-size:23px;margin-bottom:14px}
.sec-title.light{color:#f4f1ea}
.sec-title.diplo{color:var(--diplo);font-size:32px}
.dot{width:14px;height:14px;border-radius:50%;background:var(--amber);flex:none}.dot.sq{border-radius:4px}
.sec-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px 24px;margin-bottom:22px}
.sec-head p{margin:4px 0 0}
.more{font-weight:700}.more.amber{color:var(--amber)}.more.diplo{color:var(--diplo)}
.btn{display:inline-flex;align-items:center;font:inherit;font-size:14px;font-weight:600;min-height:44px;padding:0 16px;border-radius:10px;border:1px solid #c9cdd6;background:#fff;cursor:pointer;color:var(--ink)}
.btn--dark{background:var(--ink);color:#fff;border-color:var(--ink);margin-top:12px}
.empty{padding:48px 0;color:var(--muted);font-size:18px}
.grid-2,.grid-3,.grid-4{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:32px}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:20px}
main section{margin-top:44px}
main > section:first-child{margin-top:32px}

/* hero */
.hero{display:flex;flex-wrap:wrap;gap:32px}
.lead{flex:2 1 560px;min-width:0;display:flex;flex-direction:column;gap:12px}
.lead__img{display:block;aspect-ratio:54/35;border-radius:14px;overflow:hidden}
.lead h1{margin:0;font-weight:800;font-size:clamp(28px,3.4vw,44px);line-height:1.3}
.side{flex:1 1 320px;min-width:0;display:flex;flex-direction:column;gap:20px}
.side__item{display:grid;grid-template-columns:120px minmax(0,1fr);gap:14px;padding-bottom:20px;border-bottom:1px solid var(--rule)}
.side__img{display:block;width:120px;height:90px;border-radius:10px;overflow:hidden}
.side__item div{display:flex;flex-direction:column;gap:4px}
.side h2{margin:0;font-weight:700;font-size:19px;line-height:1.45}

/* latest */
.two-col{display:flex;flex-wrap:wrap;gap:40px}
.col-main{flex:999 1 560px;min-width:0}
.col-side{flex:1 1 300px;min-width:0}
.li{display:grid;grid-template-columns:96px minmax(0,1fr);gap:18px;padding:20px 0;border-bottom:1px solid var(--rule)}
.li time{font-size:14px;font-weight:600;color:var(--muted);line-height:1.5}.li time small{font-weight:500}
.li div{display:flex;flex-direction:column;gap:4px}
.li h3{margin:0;font-weight:700;font-size:21px;line-height:1.45}
.li p{margin:0;color:var(--soft);line-height:1.7}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:14px}
.cards a{display:block;border-radius:12px;overflow:hidden;border:1px solid var(--rule)}
.cards img{display:block;width:100%}

/* video */
.band-dark{background:var(--dark);color:#f4f1ea;padding:48px 0;margin-top:56px}
.vtile{display:flex;flex-direction:column;gap:12px;color:#f4f1ea}
.vtile:hover{color:var(--amber)}
.vtile__img{position:relative;display:block;border-radius:14px;overflow:hidden;aspect-ratio:16/9;background:#000}
.vtile__img img{width:100%;height:100%;object-fit:cover;display:block}
.play{position:absolute;left:16px;bottom:16px;width:56px;height:56px;border-radius:50%;background:var(--amber);display:flex;align-items:center;justify-content:center}
.dur{position:absolute;right:14px;bottom:14px;background:rgba(0,0,0,.78);color:#fff;font-size:13px;padding:3px 8px;border-radius:6px}
.vtile__t{font-family:var(--serif);font-weight:700;font-size:20px;line-height:1.45}
.yt{position:relative;aspect-ratio:16/9;border-radius:14px;overflow:hidden;background:#000}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vlist{display:flex;flex-direction:column;gap:36px}
.vitem{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,360px),1fr));gap:24px;align-items:start}
.vitem .vtile__img{color:#fff}
.vitem h2{margin:0 0 8px;font-size:24px}

/* diplomacy */
.band-diplo{margin-top:0!important;background:var(--diplo-bg);border-top:1px solid var(--diplo-rule);border-bottom:1px solid var(--diplo-rule);padding:48px 0}
.bloc{background:#fff;border:1px solid var(--diplo-rule);border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:10px;min-width:0}
.bloc__top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:14px;font-weight:600}
.pill{font-size:13px;font-weight:700;color:#fff;padding:4px 12px;border-radius:999px}
.bloc h3{margin:4px 0 0;font-size:28px;font-weight:800}
.bloc p{margin:0;color:var(--soft);line-height:1.7}
.bloc__item{padding-top:14px;margin-top:4px;border-top:1px solid var(--rule);font-family:var(--serif);font-weight:700;font-size:18px;line-height:1.5}
.bloc__empty{padding-top:14px;margin-top:4px;border-top:1px solid var(--rule);color:var(--muted)}

/* innovation + category sections */
.itile{display:flex;flex-direction:column;gap:10px;padding:22px;border:1px solid var(--rule);border-radius:16px;min-width:0}
.itile strong{font-family:var(--serif);font-size:19px;line-height:1.5}
.itile span:last-child{color:var(--soft);font-size:15px;line-height:1.7}
.itile:hover{border-color:#7c3aed}
.cat-sec__t{margin:0 0 4px;padding-bottom:10px;border-bottom:3px solid var(--ink);font-size:24px;font-weight:800}
.mini{padding:14px 0;border-bottom:1px solid var(--rule);display:flex;flex-direction:column;gap:4px}
.mini h3{margin:0;font-weight:700;font-size:18px;line-height:1.5}
.mini p{margin:0;color:var(--soft);font-size:15px;line-height:1.7}

/* category page */
.cat-head{border-bottom:3px solid var(--c);padding-bottom:22px}
.cat-head h1{margin:6px 0 8px;font-size:clamp(32px,4vw,46px);font-weight:800;color:var(--c)}
.cat-head h1 small{font-family:var(--sans);font-size:18px;color:var(--muted);font-weight:600}
.subnav{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.subnav a{display:flex;flex-direction:column;padding:12px 20px;border-radius:14px;border:2px solid var(--c);min-width:180px}
.subnav strong{color:var(--c);font-size:18px}.subnav small{color:var(--muted)}
.card{display:flex;flex-direction:column;gap:8px;min-width:0}
.card__img{display:block;aspect-ratio:54/35;border-radius:12px;overflow:hidden;margin-bottom:4px}
.card h3{margin:0;font-weight:700;font-size:20px;line-height:1.45}
.card p{margin:0;color:var(--soft);line-height:1.7}

/* article */
.article-wrap{display:flex;flex-wrap:wrap;gap:48px;padding-top:28px;padding-bottom:24px}
.article{flex:999 1 600px;min-width:0;max-width:780px}
.crumbs{font-size:14px;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap}
.crumbs a{font-weight:600}
.article h1{margin:16px 0 14px;font-weight:800;font-size:clamp(30px,3.6vw,46px);line-height:1.32}
.article .dek{font-size:21px}
.byline{margin-top:22px;padding:14px 0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;font-size:14px;color:var(--muted)}
.share{display:flex;gap:8px}
.fig{margin:26px 0 0}.fig img{width:100%;border-radius:14px;display:block}
.fig figcaption{margin-top:10px;font-size:14px;color:var(--muted)}
.prose{margin-top:26px;font-size:19px;line-height:1.9;color:var(--body)}
.prose h2{font-size:27px;font-weight:800;margin:34px 0 10px}
.prose h3{font-size:22px;margin:28px 0 8px}
.prose p{margin:0 0 20px}
.prose a{color:#1d4ed8;text-decoration:underline}
.prose blockquote{margin:24px 0;padding:18px 24px;background:var(--surface);border-radius:14px;font-family:var(--serif);font-size:22px;line-height:1.7;font-weight:600}
.prose blockquote p{margin:0}
.prose ul,.prose ol{padding-left:26px;margin:0 0 20px}.prose li{margin-bottom:8px}
.prose code{font-size:16px;background:#f0f1f4;padding:2px 6px;border-radius:6px}
.prose img{border-radius:12px}
.prose table{border-collapse:collapse;width:100%;font-size:16px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--rule);padding:8px 12px;text-align:left}
.art-video{margin-top:32px}.art-video h2{font-size:22px;margin:0 0 12px}
.sources{margin-top:32px;padding:20px 22px;border:1px solid var(--rule);border-radius:14px}
.sources h2{margin:0 0 8px;font-family:var(--sans);font-size:17px}
.sources ul{margin:0;padding-left:20px;font-size:15px;line-height:1.9}
.sources a{color:#1d4ed8;text-decoration:underline}
.tags{margin-top:22px;display:flex;flex-wrap:wrap;gap:8px}
.tags a{font-size:14px;padding:6px 14px;border-radius:999px;background:#f0f1f4}
.art-side{flex:1 1 300px;min-width:0}
.callout{padding:22px;border-radius:16px;background:var(--amber);margin-bottom:28px}
.callout h2{margin:0 0 8px;font-size:22px}.callout p{margin:0;line-height:1.75}

/* pages */
.page-title{font-size:36px;margin:8px 0}
.prose-page{font-size:18px;line-height:1.85}.prose-page h1{font-size:40px}
#results .mini{padding:18px 0}
mark{background:#ffe7a8;padding:0 2px;border-radius:3px}

/* footer */
.site-footer{margin-top:56px;background:var(--surface);border-top:1px solid var(--rule)}
.footer__in{display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;padding-top:36px;padding-bottom:36px}
.footer__brand{display:flex;gap:14px;align-items:center}
.footer__brand img{width:56px;height:56px;object-fit:contain}
.footer__brand div{display:flex;flex-direction:column;gap:2px;font-size:14px;color:var(--muted)}
.footer__brand strong{font-size:18px;color:var(--ink)}
.site-footer nav{display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center}
.copy{text-align:center;padding:14px;font-size:14px;color:var(--muted);border-top:1px solid var(--rule)}

@media (max-width:640px){
  .wrap{padding-left:16px;padding-right:16px}
  .wordmark{font-size:30px;gap:6px}.brand img{width:54px;height:54px}.brand .motto{font-size:15px}.brand .motto::before{width:14px}
  .header__in{padding-top:16px;padding-bottom:16px}
  .search{width:100%}.search input{flex:1;width:auto}
  .mainnav > ul{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  .mainnav li{flex:none}
  .submenu{position:fixed;left:16px;right:16px;top:auto;min-width:0}
  .li{grid-template-columns:1fr;gap:6px}
  .side__item{grid-template-columns:96px minmax(0,1fr)}.side__img{width:96px;height:72px}
  .prose{font-size:18px}
  .topbar__in{font-size:13px}
}

/* footer social */
.footer__social{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.footer__social a{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px;border-radius:999px;background:var(--ink);color:#fff;font-weight:600;font-size:14px}
.footer__social a:hover{background:var(--amber);color:var(--ink)}
.footer__social svg{flex:none}

.vembed{display:flex;flex-direction:column;gap:12px}