/* ============================================================
   in2eff website - main stylesheet
   ============================================================ */
:root{
 --ink:#0E1A2B; --ink2:#43506A; --muted:#6F7B91; --line:#E3E7EE; --bg:#F7F6F2; --card:#FFFFFF;
 --navy:#0B1F3F; --navy2:#12305E; --acc:#E0892B; --acc2:#F4B860; --teal:#138A8A; --blue:#2A6FDB;
 --soft:#EEF2F8; --r:16px; --shadow:0 10px 30px -12px rgba(11,31,63,.25);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 Inter,system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:Sora,Inter,sans-serif;letter-spacing:-.02em;margin:0;line-height:1.18}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--acc2);outline-offset:2px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;font-family:inherit;transition:transform .2s,background .2s,box-shadow .2s;line-height:1.2}
.btn:hover{transform:translateY(-2px)}
.btn.pri{background:var(--acc);color:#1B1206;box-shadow:0 8px 20px -8px rgba(224,137,43,.7)}
.btn.pri:hover{background:var(--acc2)}
.btn.ghost{border-color:rgba(255,255,255,.3);color:#fff}
.btn.ghost:hover{background:rgba(255,255,255,.08)}
.btn.line{border-color:var(--line);background:#fff;color:var(--ink)}
.btn.line:hover{border-color:var(--blue);color:var(--blue)}
.btn.sm{padding:8px 14px;font-size:14px}
.btn[disabled]{opacity:.6;pointer-events:none}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--acc)}
.sec{padding:88px 0}
.sec.white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-h{max-width:720px;margin-bottom:42px}
.sec-h h2{font-size:clamp(28px,3.6vw,40px);margin:10px 0 12px}
.sec-h p{color:var(--ink2);margin:0;font-size:17px}
.sec-h.row{display:flex;justify-content:space-between;align-items:end;max-width:none;gap:20px;flex-wrap:wrap}
.sec-h.row > div{max-width:640px}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(11,31,63,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:#fff;transition:box-shadow .3s,background .3s}
.nav.scrolled{background:rgba(8,22,45,.97);box-shadow:0 8px 24px rgba(0,0,0,.25)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{font-family:Sora;font-weight:800;font-size:22px;display:flex;align-items:center;gap:8px;color:#fff}
.logo i{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--acc),#F7C979);display:grid;place-items:center;font-style:normal;color:var(--navy);font-size:14px}
.logo span{color:var(--acc2)}
.menu{display:flex;gap:4px;align-items:center}
.menu a{padding:8px 12px;border-radius:8px;font-size:15px;color:#C9D4E8;transition:background .2s,color .2s}
.menu a:hover,.menu a.on{color:#fff;background:rgba(255,255,255,.08)}
.menu a.nav-cta{color:#1B1206;margin-left:8px;padding:9px 16px}
.menu a.nav-cta:hover{background:var(--acc2);color:#1B1206}
.burger{display:none;background:none;border:0;cursor:pointer;width:40px;height:40px;padding:8px}
.burger span{display:block;height:2px;background:#fff;margin:5px 0;transition:transform .3s,opacity .3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{position:relative;background:radial-gradient(900px 420px at 85% -10%,rgba(42,111,219,.45),transparent),linear-gradient(160deg,var(--navy),var(--navy2));color:#fff;padding:80px 0 96px;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(180deg,#000,transparent 85%);-webkit-mask-image:linear-gradient(180deg,#000,transparent 85%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,5vw,56px);margin:14px 0 18px}
.hero h1 em{font-style:normal;color:var(--acc2)}
.hero p.lead{font-size:18px;color:#C9D4E8;max-width:560px;margin:0 0 28px}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap}
.trust{display:flex;gap:10px 18px;flex-wrap:wrap;margin-top:30px;font-size:14px;color:#AFC0DD}
.trust b{color:#fff}
.hero-art{position:relative}
.hero-art .hero-svg{width:100%;height:auto;display:block;overflow:visible}
.hero-art .cap{font-size:11px;color:#9FB2D6;text-align:right;margin-top:4px}
.hero-svg .float{animation:float 7s ease-in-out infinite}
.hero-svg .float2{animation:float2 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes float2{0%,100%{transform:translateY(-8px)}50%{transform:translateY(4px)}}
.hero-svg .float3{animation:float 5.5s ease-in-out infinite}
.hero-svg .dash{stroke-dasharray:6 8;animation:flow 1.6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-28}}
.hero-svg .pulse{animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.hero-svg .grow{transform-box:fill-box;transform-origin:bottom;animation:grow 1.4s .5s cubic-bezier(.2,.8,.2,1) both}
.hero-svg .growx{transform-box:fill-box;transform-origin:left;animation:growx 1.4s .5s cubic-bezier(.2,.8,.2,1) both}
@keyframes grow{from{transform:scaleY(0)}}
@keyframes growx{from{transform:scaleX(0)}}
.hero-art.paused .hero-svg *{animation-play-state:paused}

/* stats */
.stats{background:#fff;border-bottom:1px solid var(--line)}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:28px 20px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat b{font-family:Sora;font-size:34px;display:block;color:var(--navy)}
.stat span{color:var(--ink2);font-size:14px}

/* grids & cards */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:transform .25s,box-shadow .25s,border-color .25s}
.card.hover:hover,a.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#D2DAE7}
.card h3{font-size:19px;margin:14px 0 8px}
.card p{margin:0;color:var(--ink2);font-size:15px}
.ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--soft);color:var(--blue);flex:0 0 44px}
.ic svg{width:22px;height:22px}
.pain{border-top:3px solid var(--acc)}
.band{background:var(--navy);color:#fff}
.band .sec-h p{color:#B9C7E2}
.band .card{background:#13284F;border-color:#1F3A6B}
.band .card p{color:#B9C7E2}.band .card h3{color:#fff}
.band .ic{background:#1C3767;color:var(--acc2)}
.tag{display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:20px;background:#E7F5EE;color:#11734A}
.tag.soon{background:#FFF1DC;color:#8A5406}
.steps{counter-reset:s}
.step{position:relative;padding-top:54px}
.step:before{counter-increment:s;content:"0" counter(s);position:absolute;top:0;left:0;font-family:Sora;font-weight:800;font-size:30px;color:var(--acc)}
.step p{color:var(--ink2)}
.mod{display:flex;gap:14px}
.mod h3{margin:0 0 4px}
ul.tick{list-style:none;padding:0;margin:10px 0 0}
ul.tick li{padding-left:24px;position:relative;color:var(--ink2);font-size:15px;margin:6px 0}
ul.tick li:before{content:"";position:absolute;left:2px;top:8px;width:11px;height:6px;border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(-45deg)}

/* founder */
.founder{display:grid;grid-template-columns:260px 1fr;gap:40px;align-items:center}
.ph{width:260px;height:300px;border-radius:20px;background:linear-gradient(160deg,#D9E2F1,#B9C8E2);overflow:hidden;display:grid;place-items:center;color:#5C6E91}
.ph img{width:100%;height:100%;object-fit:cover}
.cert{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.cert span{font-size:13px;padding:6px 12px;border-radius:20px;background:var(--soft);color:var(--navy);font-weight:600}

/* cta + forms */
.cta{background:linear-gradient(135deg,var(--acc),#F3B35A);border-radius:24px;padding:44px;display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center;color:#1B1206}
.cta h2{font-size:clamp(26px,3vw,36px)}
.form{background:#fff;border-radius:16px;padding:22px;display:grid;gap:10px;color:var(--ink)}
input,select,textarea{padding:11px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;width:100%;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(42,111,219,.15)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.msg{font-size:14px;padding:10px 12px;border-radius:10px;display:none}
.msg.ok{display:block;background:#E7F5EE;color:#11734A}
.msg.err{display:block;background:#FDE7E7;color:#A12B2B}

/* page heads */
.phead{position:relative;background:linear-gradient(160deg,var(--navy),var(--navy2));color:#fff;padding:64px 0;overflow:hidden}
.phead:before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(42,111,219,.45),transparent 70%)}
.phead .wrap{position:relative}
.phead h1{font-size:clamp(30px,4.4vw,48px);margin:10px 0 12px}
.phead p{color:#C9D4E8;max-width:680px;margin:0;font-size:18px}
.crumb{font-size:14px;color:#9FB2D6}
.crumb a:hover{color:#fff}

/* learn */
.search{display:flex;gap:8px;max-width:560px;margin-top:22px}
.search input{border:0;padding:14px 16px;border-radius:12px}
.search button{flex:0 0 auto}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.chip{padding:8px 14px;border-radius:30px;border:1px solid var(--line);background:#fff;font-size:14px;transition:all .2s}
.chip:hover{border-color:var(--navy)}
.chip.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.chip small{opacity:.65;margin-left:4px}
.art{display:flex;flex-direction:column;overflow:hidden;padding:0}
.art .th{height:132px;display:flex;align-items:end;justify-content:space-between;padding:16px;color:#fff;font-family:Sora;font-weight:700;font-size:14px;position:relative;overflow:hidden}
.art .th:after{content:"";position:absolute;right:-30px;top:-30px;width:130px;height:130px;border-radius:50%;background:rgba(255,255,255,.1);transition:transform .5s}
.art:hover .th:after{transform:scale(1.35)}
.art .bd{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.art .bd h3{margin:0;font-size:18px}
.art .bd p{font-size:15px}
.meta{font-size:13px;color:var(--muted)}
.featured{display:grid;grid-template-columns:1.1fr 1fr;padding:0;overflow:hidden;margin-bottom:26px}
.featured .th{min-height:260px;padding:28px;color:#fff;display:flex;flex-direction:column;justify-content:end;font-family:Sora}
.featured .th b{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--acc2)}
.featured .th h2{font-size:clamp(24px,2.6vw,32px);margin-top:8px}
.featured .bd{padding:28px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.pager{display:flex;gap:6px;justify-content:center;margin-top:34px}
.pager a,.pager span{padding:8px 13px;border-radius:8px;border:1px solid var(--line);background:#fff;font-size:14px}
.pager .on{background:var(--navy);color:#fff;border-color:var(--navy)}
.empty{text-align:center;padding:50px 20px;color:var(--muted)}

/* article */
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:48px;align-items:start}
.prose{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:42px;font-size:17px;line-height:1.75}
.prose h2{font-size:26px;margin:36px 0 12px;scroll-margin-top:90px}
.prose h3{font-size:21px;margin:28px 0 10px}
.prose h4{font-size:18px;margin:22px 0 8px}
.prose p{margin:0 0 16px;color:#26324A}
.prose ul,.prose ol{padding-left:22px;margin:0 0 18px}
.prose li{margin:6px 0;color:#26324A}
.prose a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.prose code{background:#F1F4F9;padding:2px 6px;border-radius:5px;font-size:.9em;font-family:ui-monospace,Consolas,monospace}
.prose pre{background:#0E1A2B;color:#E6EDF7;padding:18px;border-radius:12px;overflow:auto;font-size:14px}
.prose pre code{background:none;padding:0;color:inherit}
.prose blockquote{margin:0 0 18px;padding:14px 18px;border-left:4px solid var(--blue);background:#F3F7FE;border-radius:0 10px 10px 0}
.prose blockquote p{margin:0}
.prose blockquote.tip{border-color:var(--acc);background:#FFF7EA}
.prose hr{border:0;border-top:1px solid var(--line);margin:28px 0}
.prose img{border-radius:12px;margin:10px 0}
.table-wrap{overflow-x:auto;margin:0 0 18px;border:1px solid var(--line);border-radius:12px}
.prose table{border-collapse:collapse;width:100%;font-size:15px}
.prose th{background:#F4F6FA;text-align:left;font-weight:600}
.prose th,.prose td{padding:9px 12px;border-bottom:1px solid var(--line)}
.prose tr:last-child td{border-bottom:0}
.aside{position:sticky;top:90px;display:flex;flex-direction:column;gap:16px}
.aside .card{padding:20px}
.toc a{display:block;padding:6px 0 6px 12px;border-left:2px solid var(--line);font-size:14px;color:var(--ink2)}
.toc a.on,.toc a:hover{border-color:var(--acc);color:var(--ink)}
.progress{position:fixed;left:0;top:0;height:3px;background:var(--acc);z-index:70;width:0}

/* tools */
.tool-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.tool{display:none}.tool.on{display:grid}
.calc{grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.calc label{display:block;font-size:13px;font-weight:600;color:var(--ink2);margin:0 0 6px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fields .full{grid-column:1/-1}
.out{background:var(--navy);color:#fff;border-radius:var(--r);padding:26px}
.out .r{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px dashed #2B4677;padding:10px 0}
.out .r:last-child{border:0}
.out b{font-family:Sora;font-size:24px;color:var(--acc2);text-align:right}
.out .f{font-size:13px;color:#9FB2D6;display:block}
.lb-bars{margin-top:12px;display:flex;flex-direction:column;gap:6px}
.lb-bar{display:grid;grid-template-columns:90px 1fr 50px;gap:8px;font-size:13px;align-items:center;color:#C9D4E8}
.lb-bar .t{height:10px;background:#1C3767;border-radius:5px;overflow:hidden}
.lb-bar .t i{display:block;height:100%;background:#7FB2F0}
.lb-bar.bn .t i{background:var(--acc2)}

/* downloads + glossary */
.dl{display:flex;justify-content:space-between;align-items:center;gap:12px}
.dl .l{display:flex;gap:14px;align-items:center}
.xl{width:44px;height:44px;border-radius:10px;background:#E4F4EA;color:#107C41;font-weight:800;display:grid;place-items:center;font-size:12px;flex:0 0 44px}
.xl.pdf{background:#FDE7E7;color:#B42318}
.gl-letters{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:24px}
.gl-letters a{width:34px;height:34px;display:grid;place-items:center;border-radius:8px;background:#fff;border:1px solid var(--line);font-weight:600;font-size:14px}
.gl-letters a:hover{background:var(--navy);color:#fff}
.gl dt{font-family:Sora;font-weight:700;font-size:18px;margin-top:18px}
.gl dd{margin:4px 0 0;color:var(--ink2)}
.gl-group{scroll-margin-top:90px}

/* newsletter */
.news{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;background:var(--navy);color:#fff;border:0}
.news h3{color:#fff;margin:0 0 4px}
.news p{color:#B9C7E2}
.news form{display:flex;gap:8px;flex-wrap:wrap}
.news input{border:0;min-width:240px;width:auto}

/* footer */
.foot{background:#081629;color:#A9B7D0;padding:56px 0 26px;font-size:14px}
.foot .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.foot h4{color:#fff;font-size:15px;margin-bottom:12px}
.foot a{display:block;padding:3px 0;transition:color .2s}
.foot a:hover{color:#fff}
.foot .logo{display:inline-flex}
.foot p{margin:12px 0 0}
.copy{border-top:1px solid #1B2B45;margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.wa{position:fixed;right:18px;bottom:18px;background:#25D366;color:#fff;border-radius:30px;padding:11px 16px;font-weight:700;box-shadow:0 8px 20px rgba(0,0,0,.25);z-index:60;font-size:14px;display:flex;align-items:center;gap:8px;transition:transform .2s}
.wa svg{width:20px;height:20px}
.wa:hover{transform:scale(1.05)}
.to-top{position:fixed;right:18px;bottom:76px;width:42px;height:42px;border-radius:50%;background:var(--navy);color:#fff;border:0;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;z-index:60;font-size:18px}
.to-top.show{opacity:1;pointer-events:auto}

/* ---------- animations ---------- */
.reveal{transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
/* hidden only when JavaScript runs, so content is always visible without JS */
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
.js .reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}
.hero .fade-up{opacity:0;transform:translateY(20px);animation:fadeUp .8s cubic-bezier(.2,.8,.2,1) forwards}
.hero .fade-up.d1{animation-delay:.1s}.hero .fade-up.d2{animation-delay:.22s}.hero .fade-up.d3{animation-delay:.34s}.hero .fade-up.d4{animation-delay:.46s}
@keyframes fadeUp{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
 *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
 .js .reveal,.hero .fade-up{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media(max-width:960px){
 .hero .wrap,.calc,.cta,.founder,.featured,.article-wrap{grid-template-columns:1fr}
 .g3,.g4{grid-template-columns:1fr 1fr}
 .stats .wrap{grid-template-columns:1fr 1fr}.stat:nth-child(3){border-left:0}
 .foot .cols{grid-template-columns:1fr 1fr}
 .menu{display:none;position:absolute;top:68px;left:0;right:0;background:var(--navy);flex-direction:column;padding:10px 16px 18px;align-items:stretch;box-shadow:0 20px 30px rgba(0,0,0,.3)}
 .menu.open{display:flex}
 .menu a.nav-cta{margin:8px 0 0}
 .burger{display:block}
 .aside{position:static}
 .prose{padding:26px}
}
@media(max-width:600px){
 .g2,.g3,.g4,.fields{grid-template-columns:1fr}
 .sec{padding:60px 0}.cta{padding:24px}
 .ph{width:100%}
 .wa span{display:none}.wa{padding:12px}
 .news input{min-width:0;width:100%}
 .prose{padding:20px;font-size:16px}
 .dl{flex-direction:column;align-items:flex-start}
}

/* ============ v2: members, paywall, bKash, videos, products ============ */
.announce{background:var(--acc);color:#1B1206;font-size:14px;font-weight:600;text-align:center;padding:8px 0}
.announce a{text-decoration:underline}
.member-strip{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:18px;color:#C9D4E8;font-size:15px}
.member-strip span{margin-right:6px}
.member-strip b{color:#fff}
.access-chips{margin-bottom:10px}
.art .th .tags{display:flex;gap:6px;position:relative;z-index:1}
.tag.lock{background:#EDE7FB;color:#5B3DB5}
.dl .l b + .tag{margin-left:6px;vertical-align:middle}
.prose.teaser{position:relative;max-height:none}
.prose.teaser:after{content:"";display:block;height:110px;margin-top:-110px;position:relative;background:linear-gradient(rgba(255,255,255,0),#fff)}
.paywall{text-align:center;margin-top:10px;border:2px solid #E4DAF8;background:linear-gradient(180deg,#fff,#F8F5FF)}
.pw-ic{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;margin:0 auto 12px;background:#EDE7FB;color:#5B3DB5;font-size:24px}
.paywall h2,.mcard h2{font-size:24px;margin-bottom:8px}
.paywall p,.mcard p{max-width:560px;margin:0 auto 6px}
.pw-btns{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:18px}
.yt{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#000;margin:0 0 18px}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.videos{margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.videos h2{font-size:24px;margin-bottom:16px}
.vgrid{display:grid;gap:16px}
.mod .pimg{margin-top:14px;border-radius:10px;border:1px solid var(--line)}
.mod .yt{margin-top:14px}
.mgrid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:28px;align-items:start}
.mgrid.narrow{grid-template-columns:minmax(0,440px) minmax(0,1fr);max-width:900px}
.mform{display:flex;flex-direction:column;gap:14px}
.mform h2{font-size:20px;margin-top:6px}
.mform label{display:block;font-size:14px;font-weight:600;color:var(--ink2)}
.mform label small{font-weight:400;color:var(--muted)}
.mform label input,.mform label select{margin-top:6px}
.mform .chk{display:flex;gap:10px;align-items:flex-start;font-weight:500}
.mform .chk input{width:auto;margin-top:4px}
.fields2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.mform .msg{display:block}
.mform .msg a{text-decoration:underline}
.mform.paylater .paybox{opacity:.45;pointer-events:none}
.mcard.center{text-align:center;max-width:720px;margin:0 auto}
.side-h{font-size:18px;margin:4px 0 12px}
.note{background:#FFFBF4;border-color:#F4DDBA;margin-top:16px}
.note p{font-size:15px}
.bkash{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.bk-head{display:flex;align-items:center;gap:14px;padding:18px;background:linear-gradient(135deg,#E2136E,#B5105A);color:#fff}
.bk-head > div{flex:1}
.bk-head small{display:block;opacity:.85;font-size:13px}
.bk-head b{font-size:22px;letter-spacing:.04em;font-family:Sora,Inter,sans-serif}
.bk-logo{background:#fff;color:#E2136E;font-weight:800;border-radius:8px;padding:6px 10px;font-family:Sora,Inter,sans-serif}
.bk-head .btn{background:rgba(255,255,255,.15);color:#fff;border-color:rgba(255,255,255,.4)}
.bk-plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:1px;background:var(--line);border-bottom:1px solid var(--line)}
.bk-plans div{background:#fff;padding:12px;text-align:center}
.bk-plans b{display:block;font-size:18px;color:var(--navy)}
.bk-plans span{font-size:13px;color:var(--muted)}
.bk-steps{padding:16px 18px;font-size:15px;color:var(--ink2);line-height:1.8}
.access .acc-top{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.access small{display:block;color:var(--muted);font-size:13px}
.access .acc-top b{font-size:20px;font-family:Sora,Inter,sans-serif;color:var(--navy)}
.access .bar{height:8px;border-radius:6px;background:var(--soft);margin:18px 0 6px;overflow:hidden}
.access .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--teal),var(--blue));border-radius:6px}
.access.warn{border-color:#F4C98E;background:#FFFBF4}
.access.warn .bar i{background:var(--acc)}
.access p{margin-top:10px}
.ptable{width:100%;border-collapse:collapse;font-size:14px}
.ptable th,.ptable td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
.ptable tr:last-child td{border-bottom:0}
.pst{font-size:12px;font-weight:700;padding:2px 9px;border-radius:10px;background:#FFF1DC;color:#8A5406}
.pst.approved{background:#E7F5EE;color:#11734A}.pst.rejected{background:#FDE7E7;color:#A12B2B}
#copyMark{cursor:default;user-select:none}
@media(max-width:900px){.mgrid,.mgrid.narrow{grid-template-columns:minmax(0,1fr)}}
.mgrid > *{min-width:0}
@media(max-width:560px){.fields2{grid-template-columns:1fr}.access .acc-top{grid-template-columns:1fr 1fr}.access .acc-top b{font-size:17px}}
.copy a{display:inline!important;margin:0!important}

/* ============ v3: English / বাংলা ============ */
html[lang=bn] body,html[lang=bn] input,html[lang=bn] button,html[lang=bn] textarea,[lang=bn]{font-family:"Hind Siliguri",Inter,system-ui,sans-serif}
html[lang=bn] h1,html[lang=bn] h2,html[lang=bn] h3,html[lang=bn] h4{font-family:"Hind Siliguri",Sora,Inter,sans-serif;letter-spacing:0;line-height:1.3}
html[lang=bn] .prose{line-height:1.85}
html[lang=bn] .eyebrow{letter-spacing:.04em}
.lang-sw{display:inline-flex;border:1px solid rgba(255,255,255,.25);border-radius:9px;overflow:hidden;margin-left:6px}
.lang-sw a{padding:6px 10px!important;font-size:13px;font-weight:600;color:#C9D4E8;border-radius:0!important}
.lang-sw a.on{background:#fff;color:var(--navy)}
.lang-sw a:hover{color:#fff}
.lang-sw a.on:hover{color:var(--navy)}
.lang-chip{display:inline-block;background:rgba(255,255,255,.12);color:#fff;padding:1px 10px;border-radius:12px;font-weight:600}
.lang-chip:hover{background:rgba(255,255,255,.22)}
.lang-note{background:#FFF7EA;border:1px solid #F4DDBA;color:#8A5406;border-radius:10px;padding:10px 14px;margin-bottom:16px;font-size:15px}
@media(max-width:980px){.lang-sw{margin:10px 0 0;align-self:flex-start}}

/* ============ v3.1: registration flow ============ */
.steps-v{list-style:none;margin:0 0 18px;padding:0;counter-reset:st;display:grid;gap:10px}
.steps-v li{counter-increment:st;position:relative;padding:12px 14px 12px 54px;background:#fff;border:1px solid var(--line);border-radius:12px}
.steps-v li:before{content:counter(st);position:absolute;left:14px;top:12px;width:28px;height:28px;border-radius:50%;background:var(--soft);color:var(--navy);display:grid;place-items:center;font-weight:700;font-size:14px}
.steps-v li.on{border-color:#F4C98E;background:#FFFBF4}.steps-v li.on:before{background:var(--acc);color:#1B1206}
.steps-v b{display:block}.steps-v span{font-size:14px;color:var(--ink2)}
.plans-mini{padding:18px}.plans-mini > b{display:block;margin-bottom:8px}
.plans-mini div{display:flex;justify-content:space-between;padding:6px 0;border-top:1px solid var(--line);font-size:15px}
.plan-pick{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px}
.plan-pick label{margin:0;cursor:pointer}
.plan-pick input{position:absolute;opacity:0;width:1px}
.plan-pick span{display:block;border:1.5px solid var(--line);border-radius:12px;padding:12px;text-align:center;font-weight:600;color:var(--ink)}
.plan-pick span b{display:block;font-size:20px;color:var(--navy);font-family:Sora,Inter,sans-serif}
.plan-pick span small{display:block;color:var(--muted);font-weight:400}
.plan-pick input:checked + span{border-color:var(--acc);background:#FFF7EA;box-shadow:0 0 0 3px rgba(224,137,43,.18)}
.plan-pick input:focus-visible + span{outline:2px solid var(--blue)}
.access.inactive{border-color:#E4DAF8;background:linear-gradient(180deg,#fff,#F8F5FF)}
.acc-state{display:flex;gap:14px;align-items:center}
.acc-state .pw-ic{margin:0;flex:0 0 auto}
.acc-state b{font-size:20px;font-family:Sora,Inter,sans-serif;color:var(--navy)}

/* ============ v3.2: Create account / Login pages ============ */
.auth-sec{padding:48px 0 80px;background:radial-gradient(1200px 500px at 85% -10%,#E9EEF8 0,transparent 60%),var(--bg)}
.auth-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,480px);gap:0;max-width:1060px;background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:0 30px 60px -30px rgba(11,31,63,.35);padding:0}
.auth-side{position:relative;background:linear-gradient(155deg,var(--navy) 0%,var(--navy2) 70%,#1D4A86 100%);color:#fff;padding:44px 42px;display:flex;flex-direction:column;gap:18px;overflow:hidden}
.auth-side:after{content:"";position:absolute;right:-90px;bottom:-90px;width:260px;height:260px;border-radius:50%;border:40px solid rgba(255,255,255,.05)}
.auth-side h2{font-size:clamp(24px,2.6vw,32px);line-height:1.2;margin:0}
.auth-side > p{color:#B9C7E2;margin:0;font-size:16px}
.auth-ben{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:11px}
.auth-ben li{position:relative;padding-left:32px;color:#E3EAF6;font-size:15px}
.auth-ben li:before{content:"";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;background:rgba(244,184,96,.18) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23F4B860' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center/12px no-repeat}
.auth-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px;margin-top:6px}
.auth-stats div{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:12px}
.auth-stats b{display:block;font-family:Sora,Inter,sans-serif;font-size:24px;color:#fff}
.auth-stats span{font-size:12px;color:#9FB2D6;text-transform:uppercase;letter-spacing:.06em}
.auth-steps{list-style:none;margin:auto 0 0;padding:16px 0 0;border-top:1px solid rgba(255,255,255,.12);display:flex;gap:8px;counter-reset:as;flex-wrap:wrap}
.auth-steps li{counter-increment:as;flex:1;min-width:110px;font-size:13px;color:#C9D4E8}
.auth-steps li:before{content:counter(as);display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--acc);color:#1B1206;font-weight:700;font-size:12px;margin-right:6px}
.auth-steps b{font-weight:600;color:#fff}
.auth-steps span{display:block;margin:2px 0 0 28px;color:#F4B860;font-weight:600}
.auth-card{padding:44px 42px;display:flex;flex-direction:column;gap:16px;justify-content:center}
.auth-head h1{font-size:28px;margin:0 0 6px}
.auth-head p{margin:0;color:var(--ink2)}
.auth-ic{font-size:30px;display:block;margin-bottom:10px}
.auth-form{display:flex;flex-direction:column;gap:16px}
.fld label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px}
.fld .in{position:relative;display:flex;align-items:center}
.fld .in > svg{position:absolute;left:13px;width:18px;height:18px;fill:none;stroke:#8A96AB;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}
.fld .in input{padding:13px 14px 13px 42px;border:1.5px solid #D6DDE8;border-radius:11px;background:#FBFCFE;transition:border-color .15s,box-shadow .15s,background .15s}
.fld .in input:focus{background:#fff;border-color:var(--blue);box-shadow:0 0 0 4px rgba(42,111,219,.12)}
.fld .in input::placeholder{color:#A3AEC0}
.fld .in.pre .cc{position:absolute;left:1px;top:1px;bottom:1px;display:grid;place-items:center;padding:0 12px;border-right:1.5px solid #D6DDE8;color:var(--ink2);font-weight:600;font-size:14px;background:#F1F4F9;border-radius:10px 0 0 10px}
.fld .in.pre input{padding-left:66px}
.fld .eye{position:absolute;right:8px;background:none;border:0;padding:6px;cursor:pointer;border-radius:8px;display:grid;place-items:center}
.fld .eye svg{width:19px;height:19px;fill:none;stroke:#8A96AB;stroke-width:1.8}
.fld .eye:hover svg,.fld .eye.on svg{stroke:var(--blue)}
.fld .in input[type=password],.fld .in input[data-strength]{padding-right:42px}
.fld-hint{margin:6px 0 0;font-size:13px;color:var(--muted)}
.fld-err{margin:6px 0 0;font-size:13px;color:#B42318;font-weight:500}
.fld.is-bad .in input{border-color:#E5484D;background:#FFF8F8}
.pw-meter{display:flex;align-items:center;gap:5px;margin-top:8px}
.pw-meter i{flex:1;height:4px;border-radius:3px;background:#E3E7EE;transition:background .2s}
.pw-meter span{min-width:56px;text-align:right;font-size:12px;color:var(--muted)}
.pw-meter[data-score="1"] i:nth-child(-n+1){background:#E5484D}
.pw-meter[data-score="2"] i:nth-child(-n+2){background:#F5A524}
.pw-meter[data-score="3"] i:nth-child(-n+3){background:#3E9B4F}
.pw-meter[data-score="4"] i{background:#1F8A43}
details.opt summary{cursor:pointer;font-size:14px;font-weight:600;color:var(--blue);list-style:none}
details.opt summary::-webkit-details-marker{display:none}
details.opt summary:before{content:"+ "}
details.opt[open] summary:before{content:"− "}
details.opt summary small{color:var(--muted);font-weight:400}
details.opt .fld{margin-top:10px}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink2);line-height:1.5;cursor:pointer}
.agree input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--acc);flex:0 0 auto}
.agree.is-bad span{color:#B42318}
.btn.full{width:100%}
.btn.big{padding:15px 20px;font-size:16px;border-radius:12px}
.auth-alt{text-align:center;margin:0;font-size:15px;color:var(--ink2)}
.auth-alt a,.auth-forgot a{color:var(--blue);font-weight:600}
.auth-forgot{margin:0;font-size:14px;color:var(--muted);text-align:center}
.auth-safe{display:flex;gap:8px;align-items:center;justify-content:center;margin:0;font-size:13px;color:var(--muted)}
.auth-safe svg{width:15px;height:15px;fill:none;stroke:#3E9B4F;stroke-width:2;flex:0 0 auto}
.auth-or{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px}
.auth-or:before,.auth-or:after{content:"";flex:1;height:1px;background:var(--line)}
.auth-card .msg{display:block}
@media(max-width:900px){
 .auth-sec{padding:24px 0 56px}
 .auth-grid{grid-template-columns:1fr;border-radius:18px;margin:0 16px}
 .auth-card{order:-1;padding:30px 22px}
 .auth-side{padding:30px 22px}
 .auth-steps{display:none}
}

/* glossary button beside the Knowledge Hub search button */
.search{max-width:700px}
.search input{flex:1;min-width:0}
.gl-btn{flex:0 0 auto;background:linear-gradient(100deg,rgba(224,137,43,.45),rgba(244,184,96,.22));border:1.5px solid var(--acc2);color:#fff;
 box-shadow:0 0 0 0 rgba(244,184,96,.55);animation:glPulse 2.6s ease-out 3}
.gl-btn:hover{background:var(--acc2);color:#1B1206}
.gl-btn .gl-ico{white-space:nowrap;display:inline-grid;place-items:center;height:24px;padding:0 6px;border-radius:6px;background:var(--acc);color:#1B1206;font:800 11px Sora,sans-serif}
.gl-btn em{font-style:normal;font-size:11px;font-weight:700;padding:2px 7px;border-radius:99px;background:var(--acc2);color:#1B1206}
@keyframes glPulse{0%{box-shadow:0 0 0 0 rgba(244,184,96,.55)}70%{box-shadow:0 0 0 12px rgba(244,184,96,0)}100%{box-shadow:0 0 0 0 rgba(244,184,96,0)}}
@media (prefers-reduced-motion:reduce){.gl-btn{animation:none}}
@media(max-width:600px){.search{flex-wrap:wrap}.search input{flex:1 1 100%}.search .btn{flex:1 1 0}}

/* lesson pictures and photo places */
.prose figure{margin:22px 0 26px;text-align:center}
.prose figure img{display:block;width:100%;height:auto;margin:0 auto;border:1px solid var(--line);background:#fff}
.prose figcaption{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.5}
.prose .photo-slot{display:flex;flex-direction:column;gap:4px;margin:18px 0 22px;padding:18px 20px;border:2px dashed var(--acc2);border-radius:12px;background:#FFFBF3;color:var(--ink2);font-size:15px}
.prose .photo-slot b{color:var(--acc)}
.prose .photo-slot small{color:var(--muted);font-size:13px}

/* lesson card with its picture */
.art .th.pic{background:#fff!important;align-items:end}
.art .th.pic img{position:absolute;inset:0;z-index:0;width:100%;height:100%;object-fit:cover;object-position:top center;transition:transform .5s}
.art .th.pic:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,31,63,0) 30%,rgba(11,31,63,.85));z-index:1}
.art .th.pic:after{display:none}
.art .th.pic>span{position:relative;z-index:2}
.art:hover .th.pic img{transform:scale(1.04)}

/* ---- Learn pop-up: "tell us about you" ---- */
.ask-pop{position:fixed;inset:0;z-index:90;background:rgba(11,31,63,.55);display:flex;align-items:center;justify-content:center;padding:16px;opacity:0;transition:opacity .25s}
.ask-pop.show{opacity:1}
.ask-pop[hidden]{display:none}
.ask-card{position:relative;background:#fff;border-radius:var(--r);box-shadow:var(--shadow);max-width:560px;width:100%;max-height:calc(100vh - 32px);overflow:auto;padding:26px 24px 22px;transform:translateY(16px);transition:transform .25s}
.ask-pop.show .ask-card{transform:none}
.ask-card h3{font-size:22px;color:var(--navy);padding-right:28px}
.ask-card>p{color:var(--ink2);font-size:15px;margin:8px 0 16px}
.ask-card .fields2 .full{grid-column:1/-1}
.ask-card .msg{margin-top:12px}
.ask-card .msg:empty{display:none}
.ask-x{position:absolute;top:10px;right:12px;width:36px;height:36px;border:0;background:none;font-size:28px;line-height:1;color:var(--muted);cursor:pointer;border-radius:8px}
.ask-x:hover{background:var(--soft);color:var(--ink)}
.ask-btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
@media(max-width:560px){.ask-pop{align-items:flex-end;padding:0}.ask-card{border-radius:var(--r) var(--r) 0 0;max-height:92vh;padding:22px 16px 0}.ask-btns{position:sticky;bottom:0;background:#fff;padding:12px 0 16px;margin-top:8px;border-top:1px solid var(--line)}.ask-btns .btn{flex:1}}
@media(prefers-reduced-motion:reduce){.ask-pop,.ask-card{transition:none}}