:root{
  --blue:#075e9e; --blue-dark:#0b3d66; --navy:#12283e; --gold:#ffc531; --gold-dark:#f5a623;
  --red:#e33224; --mint:#eef7f2; --soft:#f4f8fb; --ink:#1c2b3a; --muted:#5a6b7c; --line:#dce6ee;
  --radius:16px; --shadow:0 10px 30px rgba(11,61,102,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'SolaimanLipi','Hind Siliguri',sans-serif;color:var(--ink);background:#fff;line-height:1.65}
.container{max-width:1180px;margin:0 auto;padding:0 18px}
a{text-decoration:none;color:inherit}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{line-height:1.35;color:var(--navy)}
/* হেডার */
.topbar-main{background:linear-gradient(90deg,var(--blue-dark),var(--blue));color:#fff;position:sticky;top:0;z-index:60;box-shadow:0 4px 18px rgba(11,61,102,.25)}
.bar-in{display:flex;align-items:center;gap:18px;min-height:78px}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto}
.brand-logo{width:52px;height:52px;border-radius:50%;background:#fff;color:var(--blue-dark);display:grid;place-items:center;font-size:22px;font-weight:700;border:3px solid var(--gold);flex:none}
.brand-text strong{display:block;font-size:20px;line-height:1.2;color:#fff}
.brand-text small{display:block;font-family:Poppins,sans-serif;font-size:11px;letter-spacing:.6px;color:#cfe6f5;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav>a,.more-btn{background:none;border:0;color:#fff;font-size:16.5px;padding:9px 10px;border-radius:9px;white-space:nowrap}
.main-nav>a:hover,.more-btn:hover{background:rgba(255,255,255,.14)}
.nav-more{position:relative}
.more-menu{position:absolute;right:0;top:calc(100% + 8px);background:#fff;color:var(--ink);border-radius:12px;box-shadow:var(--shadow);min-width:210px;padding:8px;display:none}
.more-menu.open{display:block}
.more-menu a{display:block;padding:8px 12px;border-radius:8px}
.more-menu a:hover{background:var(--soft)}
.search-btn{background:none;border:0;color:#fff;font-size:18px;padding:8px}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:26px}
.search-row{background:#fff;border-bottom:1px solid var(--line);padding:10px 0}
.search-row input{width:100%;padding:12px 16px;border:1.5px solid var(--line);border-radius:12px;font-family:inherit;font-size:16px}
/* হিরো */
.hero{background:linear-gradient(180deg,#fdf3ec, #f2f8fc 70%);padding:44px 0 52px}
.hero-in{display:grid;grid-template-columns:1fr 1.1fr;gap:34px;align-items:center}
.hero-text h1{font-size:44px;font-weight:700}
.hero-text .red{color:var(--red)} .hero-text .dot{color:var(--red);font-size:26px}
.hero-sub{font-size:21px;color:var(--navy);margin:10px 0 20px}
.btn-yellow{display:inline-flex;align-items:center;gap:10px;background:var(--gold);color:#231f10;font-weight:700;font-size:18px;padding:13px 30px;border-radius:10px;border:0;box-shadow:0 8px 20px rgba(245,166,35,.35)}
.btn-yellow:hover{background:var(--gold-dark)}
.hero-note{margin-top:26px;font-size:17px;color:var(--ink);max-width:480px;border-top:1px solid var(--line);padding-top:18px}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.hero-badges span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 13px;font-size:14.5px;color:var(--blue-dark)}
.hero-slider{position:relative;border-radius:22px;overflow:hidden;min-height:340px;box-shadow:var(--shadow)}
.slide{position:absolute;inset:0;padding:38px;display:none;flex-direction:column;justify-content:center;color:#fff}
.slide.active{display:flex}
.slide-a{background:linear-gradient(120deg,#0b4f8c,#1280a8)}
.slide-b{background:linear-gradient(120deg,#5a3199,#9b4d9e)}
.slide-c{background:linear-gradient(120deg,#0d7a5f,#35a06f)}
.live-chip{align-self:flex-start;background:#e33224;color:#fff;border-radius:999px;padding:3px 14px;font-size:14px;margin-bottom:16px}
.slide h3{color:#fff;font-size:33px}.slide h3 em{color:var(--gold);font-style:normal}
.slide p{margin:8px 0 12px;color:#e8f3fb}
.slide-big{font-size:26px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4);border-radius:12px;padding:10px 18px;align-self:flex-start}
.dots{position:absolute;bottom:16px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:3}
.dots button{width:11px;height:11px;border-radius:50%;border:0;background:rgba(255,255,255,.5)}
.dots button.on{background:#fff}
/* সেকশন ও কার্ড */
.section{padding:62px 0}.section.soft{background:var(--soft)}
.sec-head{text-align:center;max-width:680px;margin:0 auto 34px}
.sec-tag{display:inline-block;background:#e3f0f9;color:var(--blue);border-radius:999px;padding:3px 16px;font-size:14.5px;font-weight:700;margin-bottom:10px}
.sec-tag.gold{background:var(--gold);color:#231f10}
.sec-head h2{font-size:32px;margin-bottom:8px}
.sec-head p{color:var(--muted)}
.grid{display:grid;gap:20px}.grid.cards{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 4px 14px rgba(11,61,102,.05);position:relative;display:flex;flex-direction:column;gap:9px}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px);transition:.25s}
.card-ico{font-size:34px}
.card h3{font-size:21px}
.card p{color:var(--muted);flex:1}
.meta{display:flex;gap:14px;flex-wrap:wrap;color:var(--blue-dark);font-size:15px;border-top:1px dashed var(--line);padding-top:10px}
.btn-navy{background:var(--blue);color:#fff;border:0;border-radius:10px;padding:11px 18px;font-size:16.5px;font-weight:700}
.btn-navy:hover{background:var(--blue-dark)}
.btn-outline{background:#fff;color:var(--blue);border:1.5px solid var(--blue);border-radius:10px;padding:10px 18px;font-size:16.5px;font-weight:700}
.no-result{text-align:center;color:var(--red);margin-top:18px;font-size:17px}
.free-badge{position:absolute;top:16px;right:16px;background:var(--red);color:#fff;border-radius:999px;padding:2px 13px;font-size:14px;font-weight:700}
/* ই-বুক, ফ্রী ক্লাস, শিক্ষক, মতামত */
.book-cover{border-radius:12px;color:#fff;font-size:24px;font-weight:700;line-height:1.4;padding:26px 20px;min-height:130px}
.book-cover small{font-size:16px;color:var(--gold)}
.book-cover.c1{background:linear-gradient(140deg,#0b4f8c,#1280a8)}
.book-cover.c2{background:linear-gradient(140deg,#7a3b12,#c07a1e)}
.book-cover.c3{background:linear-gradient(140deg,#123f2e,#1e7a4f)}
.class-card .play{width:64px;height:64px;border-radius:50%;border:0;background:var(--red);color:#fff;font-size:24px;display:grid;place-items:center;box-shadow:0 8px 18px rgba(227,50,36,.35)}
.grid.teachers{grid-template-columns:repeat(4,1fr)}
.teacher{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;text-align:center}
.teacher .avatar{width:72px;height:72px;border-radius:50%;background:linear-gradient(140deg,var(--blue),#1280a8);color:#fff;display:grid;place-items:center;font-size:24px;font-weight:700;margin:0 auto 12px;border:3px solid var(--gold)}
.teacher h3{font-size:19px}.teacher p{color:var(--blue);font-weight:700}
.teacher small{color:var(--muted)}
.review{background:#fff;border:1px solid var(--line);border-left:5px solid var(--gold);border-radius:12px;padding:24px}
.review p{font-size:17.5px;color:var(--ink)}
.review footer{margin-top:12px;color:var(--blue-dark);font-weight:700}
/* FAQ ও ভর্তি */
.container.narrow{max-width:820px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;background:none;border:0;text-align:left;font-size:18px;font-weight:700;color:var(--navy);padding:16px 20px;display:flex;justify-content:space-between;gap:10px}
.faq-a{display:none;padding:0 20px 18px;color:var(--muted)}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.faq-q span{transition:.2s;color:var(--blue)}
.admission{background:linear-gradient(140deg,var(--blue-dark),var(--blue))}
.sec-head.light h2,.sec-head.light p{color:#fff}
.adm-form{background:#fff;border-radius:18px;padding:28px;display:grid;gap:16px;box-shadow:var(--shadow)}
.adm-form label{display:grid;gap:6px;font-weight:700;color:var(--navy)}
.adm-form input,.adm-form select{padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-family:inherit;font-size:16px;font-weight:400}
.btn-yellow.big{justify-content:center;width:100%}
.form-ok{color:#1e7a4f;font-weight:700;text-align:center}
/* ফুটার */
.site-footer{background:var(--mint);color:var(--ink);padding:52px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;padding-bottom:38px}
.brand.light .brand-text strong{color:var(--navy)}
.brand.light .brand-text small{color:var(--muted)}
.foot-slogan{font-weight:700;font-size:18px;margin:14px 0 8px;color:var(--navy)}
.foot-brand p{color:var(--muted)}
.foot-col h4{font-size:19px;margin-bottom:14px}
.foot-col a{display:block;padding:4px 0;color:var(--ink)}
.foot-col a:hover{color:var(--blue)}
.foot-col p{padding:4px 0}
.pending{color:#9a6a00;background:#fff3d6;border-radius:6px;padding:1px 8px;font-size:14.5px}
.social-label{margin-top:12px;font-weight:700;color:var(--navy)}
.socials{display:flex;gap:10px;margin-top:8px}
.socials a{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:#fff;font-family:Poppins,sans-serif;font-weight:700;font-size:15px}
.socials a:nth-child(1){background:#1877f2}.socials a:nth-child(2){background:#e33224}
.socials a:nth-child(3){background:#c13584}.socials a:nth-child(4){background:#0a66c2}
.foot-bottom{border-top:1px solid #d8e8de;padding:16px 0;text-align:center;color:var(--muted);font-size:15px}
/* মডাল, টপ বোতাম, রেসপন্সিভ */
.modal{position:fixed;inset:0;background:rgba(10,30,50,.6);display:grid;place-items:center;z-index:90;padding:18px}
.modal[hidden]{display:none}
.modal-box{background:#fff;border-radius:18px;max-width:520px;width:100%;padding:30px;position:relative}
.modal-box h3{font-size:23px;margin-bottom:10px}
.modal-box p,.modal-box li{color:var(--muted)}
.modal-box ul{margin:10px 0 18px 20px}
.modal-x{position:absolute;top:12px;right:12px;background:var(--soft);border:0;width:36px;height:36px;border-radius:50%;font-size:16px}
.to-top{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border-radius:50%;border:0;background:var(--blue);color:#fff;font-size:20px;box-shadow:var(--shadow);display:none;z-index:70}
.to-top.show{display:block}
@media(max-width:1020px){
  .bar-in{flex-wrap:wrap}
  .main-nav.open-static{display:flex;position:static;background:transparent;flex-direction:row;flex-wrap:wrap;padding:6px 0;gap:2px}
  .main-nav{position:absolute;top:78px;left:0;right:0;background:var(--blue-dark);flex-direction:column;align-items:stretch;padding:12px 18px;display:none}
  .main-nav.open{display:flex}
  .nav-toggle{display:block;margin-left:auto}
  .brand{margin-right:0}
  .more-menu{position:static;box-shadow:none;background:#0a3557;color:#fff}
  .hero-in{grid-template-columns:1fr}
  .grid.cards{grid-template-columns:repeat(2,1fr)}
  .grid.teachers{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .hero-text h1{font-size:32px}
  .grid.cards,.grid.teachers,.foot-grid{grid-template-columns:1fr}
  .brand-text strong{font-size:16.5px}
  .slide h3{font-size:25px}
  .section{padding:44px 0}
}
/* সোলাইমান লিপি: সাইটের সমস্ত বাংলা লেখায় একটাই ফন্ট (গ্লোবাল গ্যারান্টি) */
body,body *{font-family:'SolaimanLipi','Hind Siliguri',sans-serif}
input,select,textarea,button{font-family:'SolaimanLipi','Hind Siliguri',sans-serif}
/* ভেতরের পেজ ও অ্যাডমিন */
.section-more{text-align:center;margin-top:28px}
.btn-outline.center,.btn-navy.center{text-align:center}
.search-form{display:flex;gap:10px}
.search-form input{flex:1}
.filter-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:26px}
.filter-row>a{border:1.5px solid var(--line);border-radius:999px;padding:7px 18px;background:#fff;font-weight:700}
.filter-row>a.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.mini-search{display:flex;gap:8px;margin-left:auto}
.mini-search input{padding:9px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:15.5px}
.crumb{color:var(--muted);margin-bottom:14px}
.crumb a{color:var(--blue);font-weight:700}
.detail-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px;box-shadow:0 4px 14px rgba(11,61,102,.05);position:relative}
.detail-title{font-size:30px;margin:6px 0 12px}
.card-ico.big{font-size:52px}
.detail-text{font-size:17.5px;color:var(--ink);margin:16px 0 22px;line-height:1.8}
.free-badge.static{position:static;display:inline-block;margin-bottom:10px}
.inline-link{color:var(--blue);font-weight:700;text-decoration:underline}
.adm-form textarea{padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:16px;resize:vertical}
.adm-form.plain{box-shadow:none;padding:6px 0}
.btn-navy.big{width:100%;padding:13px;font-size:17px}
.main-nav.open-static{flex-wrap:wrap}
.admin-h{font-size:27px;margin-bottom:20px}
.admin-stats .card h3{font-size:34px;color:var(--blue)}
.admin-stats .card p{color:var(--muted)}
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:14px}
.admin-table{width:100%;border-collapse:collapse;min-width:760px}
.admin-table th,.admin-table td{padding:11px 13px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.admin-table th{background:var(--soft);color:var(--navy)}
.nowrap{white-space:nowrap}
.mini-btn{display:inline-block;background:var(--soft);border:1px solid var(--line);border-radius:8px;padding:4px 10px;font-size:14px;margin:2px;color:var(--blue-dark)}
.mini-btn.danger{color:#b3261e}
.check{display:flex !important;grid-template-columns:auto 1fr;align-items:center;gap:8px}
.page-adm{min-height:60vh}
@media(max-width:1020px){.mini-search{margin-left:0;width:100%}.mini-search input{flex:1}}

/* ==== v2 features ==== */
.wa-float{position:fixed;right:16px;bottom:16px;width:56px;height:56px;border-radius:50%;background:#25D366;color:#fff;font-size:27px;display:flex;align-items:center;justify-content:center;text-decoration:none;box-shadow:0 8px 22px rgba(0,0,0,.28);z-index:1200}
.wa-float:hover{transform:scale(1.07)}
.pay-box{border:1.5px dashed #b9cbe0;border-radius:12px;padding:14px 16px;margin:6px 0 4px;background:#f6faff}
.pay-box p{margin:6px 0 10px;font-size:15px}
.pay-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:640px){.pay-grid{grid-template-columns:1fr}}
.quiz{background:#fff;border:1px solid #e3ebf5;border-radius:16px;padding:22px;box-shadow:0 6px 24px rgba(7,52,99,.06)}
.quiz-q{padding:14px 4px;border-bottom:1px dashed #dbe6f2}
.quiz-q h3{font-size:18px;margin:0 0 10px}
.quiz-opt{display:block;padding:9px 12px;border:1.5px solid #d7e3f0;border-radius:10px;margin:7px 0;cursor:pointer;font-size:16px}
.quiz-opt:hover{border-color:#0b5fa5}
.quiz-opt.right{border-color:#1d9e57;background:#eafaf0}
.quiz-opt.wrong{border-color:#d94f4f;background:#fdeeee}
.quiz-result{margin-top:18px;border:2px solid #f2b705;background:#fffbe9;border-radius:14px;padding:18px}
.quiz-result h3{margin:0 0 8px}
.batch-line{font-size:16px;margin:8px 0;color:#073463}
.post-body p{font-size:17.5px;line-height:1.95;margin:0 0 14px}
.post-body h2{margin:0 0 16px}
.cta-band{background:linear-gradient(120deg,#073463,#0b5fa5);border-radius:18px;padding:26px;color:#fff;text-align:center;margin:8px 0 4px}
.cta-band h3{margin:0 0 8px;font-size:24px;color:#fff}
.cta-band p{margin:0 0 14px;color:#dcebfb}
.btn-ghost{display:inline-flex;align-items:center;background:transparent;color:#fff;border:1.5px solid #fff;border-radius:10px;padding:12px 26px;font-size:17px;font-weight:700;text-decoration:none}
.btn-ghost:hover{background:rgba(255,255,255,.14)}

/* ==== v3: portal + certificates ==== */
.form-err{background:#fdeeee;border:1.5px solid #e5a3a3;color:#8c2323;border-radius:10px;padding:12px 16px;font-size:16px}
.grid.cards-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:820px){.grid.cards-2{grid-template-columns:1fr}}
.mat-list{margin:6px 0 0;padding-left:22px}
.mat-list li{margin:7px 0;font-size:16.5px}
.cert-sheet{background:#fff;border-radius:14px;padding:14px;box-shadow:0 10px 34px rgba(7,52,99,.13)}
.cert-border{border:3px double #b98a1c;border-radius:10px;padding:38px 30px;text-align:center;background:linear-gradient(180deg,#fffdf4,#ffffff)}
.cert-org{font-size:27px;font-weight:700;color:#073463;margin:0}
.cert-en{letter-spacing:3px;color:#8a6d1f;font-size:13px;margin:4px 0 18px;text-transform:uppercase}
.cert-title{font-size:34px;color:#0b5fa5;margin:0 0 14px}
.cert-line{font-size:17px;color:#444;margin:8px 0}
.cert-name{font-size:30px;font-weight:700;color:#073463;margin:10px 0;border-bottom:2px solid #f2b705;display:inline-block;padding:0 26px 6px}
.cert-course{font-size:22px;font-weight:700;color:#0b5fa5;margin:8px 0 20px}
.cert-foot{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:15.5px;color:#333;margin-top:16px}
.cert-verify{margin-top:18px;font-size:13.5px;color:#777}
@media print{.topbar-main,.wa-float{display:none!important}}

/* ৪০৪ পেজ */
.big-404{font-family:Poppins,sans-serif;font-size:84px;font-weight:700;color:var(--gold);line-height:1;margin-bottom:6px}