:root{--navy:#062457;--navy2:#0a1a3d;--gold:#e0a10e;--gold2:#f6c445;--ink:#16203a;--muted:#5f6b85;--soft:#f5f7fc;--line:#e3e8f3;
--sh1:0 2px 10px rgba(6,36,87,.06);--sh2:0 18px 45px rgba(6,36,87,.16);--ease:cubic-bezier(.22,.61,.36,1)}
html{scroll-behavior:smooth}
body{font-family:'Poppins','Hind Siliguri',sans-serif;color:var(--ink);line-height:1.7;overflow-x:hidden}
h1,h2,h3,h4,h5{font-weight:700;line-height:1.25;letter-spacing:-.01em}
a{text-decoration:none}
section{padding:90px 0;scroll-margin-top:70px}
.bg-soft{background:var(--soft)}
.sec-title{font-size:clamp(1.7rem,4vw,2.5rem);text-align:center}
.sec-sub{text-align:center;color:var(--muted);max-width:640px;margin:.6rem auto 3rem}
.sec-title.light,.light+.sec-sub{color:#fff}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px}

/* navbar */
.navbar{background:rgba(255,255,255,.92);box-shadow:0 2px 20px rgba(6,36,87,.08);padding:.5rem 0}
/* blur lives on a pseudo-element: backdrop-filter on .navbar itself traps the fixed side menu inside the header */
.navbar::before{content:"";position:absolute;inset:0;z-index:-1;backdrop-filter:blur(14px)}
.offcanvas{z-index:1100}
.navbar-brand img{height:90px; width: 100px;}
.navbar .nav-link{color:var(--ink);font-weight:500;font-size:14px; padding:.5rem 1rem;position:relative;transition:color .3s}
.navbar .nav-link:hover,.navbar .nav-link.active{color:var(--gold)}
.navbar-toggler{border:0;box-shadow:none!important;font-size:1.9rem;color:var(--navy);padding:.2rem .5rem}
.offcanvas{background:#fff}
@media(max-width:991px){.offcanvas .nav-link{font-size:1.1rem;border-bottom:1px solid var(--line);padding:.9rem 0}}

/* buttons */
.btn-gold{background:linear-gradient(135deg,var(--gold2),var(--gold));color:#1a1200;font-weight:600;border:0;border-radius:50px;padding:.7rem 1.8rem;box-shadow:0 8px 22px rgba(224,161,14,.35);transition:.35s var(--ease)}
.btn-gold:hover{color:#1a1200;transform:translateY(-3px);box-shadow:0 14px 32px rgba(224,161,14,.5)}
.btn-line{border:1.5px solid #fff;color:#fff;border-radius:50px;font-weight:600;padding:.7rem 1.8rem;transition:.35s var(--ease)}
.btn-line:hover{background:#fff;color:var(--navy);transform:translateY(-3px)}

/* hero */
.hero{padding:110px 0 90px;color:#fff;background:radial-gradient(circle at 85% 10%,rgba(224,161,14,.35),transparent 45%),radial-gradient(circle at 10% 90%,rgba(60,110,220,.35),transparent 45%),linear-gradient(135deg,var(--navy2),var(--navy))}
.hero h1{font-size:clamp(2.3rem,6vw,4.2rem);font-weight:800}
.hero h1 span{color:var(--gold2)}
.hero .lead{color:#c9d5ee;max-width:560px;margin:1.2rem 0 2rem}
.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:24px;padding:1.6rem;backdrop-filter:blur(10px)}
.stat{text-align:center;padding:1.1rem .5rem;border-radius:16px;background:rgba(255,255,255,.07);transition:.35s var(--ease)}
.stat:hover{transform:translateY(-5px);background:rgba(255,255,255,.14)}
.stat b{display:block;font-size:2rem;color:var(--gold2)}
.stat small{color:#c9d5ee}

/* filters */
.filters{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center;margin-bottom:2.5rem}
.filters button{border:1.5px solid var(--line);background:#fff;color:var(--ink);font-weight:500;border-radius:50px;padding:.5rem 1.3rem;transition:.3s var(--ease)}
.filters button:hover{border-color:var(--gold);box-shadow:var(--sh1)}
.filters button.active{background:var(--navy);color:#fff;border-color:var(--navy);box-shadow:0 8px 20px rgba(6,36,87,.3)}

/* cards: smooth premium hover shadow */
.pcard,.feat,.step,.mod,.faq .accordion-item{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--sh1);transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s}
.pcard:hover,.feat:hover,.step:hover,.mod:hover{transform:translateY(-8px);box-shadow:var(--sh2);border-color:rgba(224,161,14,.6)}
.pcard{padding:1.8rem;height:100%;display:flex;flex-direction:column}
.ico{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--navy),#1a4290);color:var(--gold2);display:grid;place-items:center;font-size:1.5rem;margin-bottom:1.1rem;transition:.45s var(--ease)}
.pcard:hover .ico,.feat:hover .ico{transform:rotate(-6deg) scale(1.08)}
.tag{align-self:flex-start;font-size:.75rem;font-weight:600;background:rgba(224,161,14,.15);color:#9a6b00;border-radius:50px;padding:.15rem .8rem;margin-bottom:.7rem}
.pcard h3{font-size:1.15rem}
.pcard p{color:var(--muted);font-size:.92rem;flex:1}
.dur{display:flex;justify-content:space-between;align-items:center;border-top:1px dashed var(--line);padding-top:1rem;margin-top:.6rem;font-weight:600;font-size:.9rem}
.dur a{color:var(--gold);font-weight:600}
.dur a:hover{color:var(--navy)}
.item{transition:opacity .35s}
.item.hide{display:none}

/* features / steps */
.feat{padding:1.7rem;height:100%}
.feat h4,.step h4{font-size:1.05rem}
.feat p,.step p{color:var(--muted);font-size:.92rem;margin:0}
.step{padding:1.8rem;height:100%;text-align:center}
.step .n{width:46px;height:46px;border-radius:50%;background:var(--gold);color:#1a1200;font-weight:700;display:grid;place-items:center;margin:0 auto 1rem}

/* ielts band */
.band{background:linear-gradient(135deg,var(--navy2),var(--navy));color:#fff;position:relative;overflow:hidden}
.band::after{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:rgba(224,161,14,.18)}
.mod{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.15);text-align:center;padding:1.6rem 1rem;height:100%;box-shadow:none}
.mod i{font-size:2rem;color:var(--gold2)}
.mod h4{font-size:1.05rem;margin:.4rem 0 0}

/* about */
.quote{font-size:clamp(1.3rem,3vw,2rem);font-weight:700;text-align:center;max-width:820px;margin:0 auto;color:var(--navy)}
.quote em{font-style:normal;color:var(--gold)}
.vm{background:#fff;border-radius:22px;padding:2rem;border-left:5px solid var(--gold);box-shadow:var(--sh1);height:100%;transition:.45s var(--ease)}
.vm:hover{box-shadow:var(--sh2);transform:translateY(-6px)}
.vm p{color:var(--muted);margin:0}

/* faq */
.faq .accordion-item{margin-bottom:1rem;overflow:hidden}
.faq .accordion-button{font-weight:600;color:var(--navy);background:#fff;box-shadow:none}
.faq .accordion-button:not(.collapsed){background:var(--soft)}
.faq .accordion-body{color:var(--muted)}

/* contact */
.cta{background:linear-gradient(135deg,var(--navy2),var(--navy));color:#fff}
.cta-box{background:#fff;color:var(--ink);border-radius:28px;padding:2.5rem 1.5rem;box-shadow:0 30px 70px rgba(0,0,0,.35)}
.cta-box .sec-title{color:var(--navy)}
.form-control,.form-select{border:1.5px solid var(--line);border-radius:14px;padding:.8rem 1rem;font-family:inherit}
.form-control:focus,.form-select:focus{border-color:var(--gold);box-shadow:0 0 0 .25rem rgba(224,161,14,.2)}

/* footer */
footer{background:#040d24;color:#a9b6d3;padding:60px 0 20px}
footer h5{color:#fff;font-size:1rem;margin-bottom:1rem}
footer a{color:#a9b6d3;transition:.3s}
footer a:hover{color:var(--gold2);padding-left:4px}
.logo-badge{background:#fff;border-radius:12px;padding:4px 10px;display:inline-flex;margin-bottom:1rem}
.logo-badge img{height:48px}
.social a{display:inline-grid;place-items:center;width:40px;height:40px;border:1px solid rgba(255,255,255,.2);border-radius:50%;margin-right:.4rem;transition:.35s var(--ease)}
.social a:hover{background:var(--gold);color:#1a1200;transform:translateY(-4px);padding-left:0;box-shadow:0 10px 22px rgba(224,161,14,.4)}
#top{position:fixed;right:20px;bottom:20px;width:46px;height:46px;border:0;border-radius:50%;background:var(--gold);color:#1a1200;font-size:1.3rem;box-shadow:0 10px 25px rgba(0,0,0,.25);opacity:0;pointer-events:none;transition:.4s var(--ease);z-index:99}
#top.show{opacity:1;pointer-events:auto}
#top:hover{transform:translateY(-4px)}

@media(max-width:767px){section{padding:60px 0}.hero{padding:70px 0 60px;text-align:center}.hero .lead{margin-inline:auto}}
@media(prefers-reduced-motion:reduce){.pop{animation:none!important}*{transition:none!important;scroll-behavior:auto!important}}

/* language switch */
.lang-btn{border:1.5px solid var(--navy);background:#fff;color:var(--navy);font-weight:600;font-size:.9rem;border-radius:50px;padding:.35rem 1rem;transition:.35s var(--ease)}
.lang-btn:hover{background:var(--navy);color:#fff;box-shadow:0 8px 20px rgba(6,36,87,.3);transform:translateY(-2px)}
html[lang=bn] body{line-height:1.85}
html[lang=bn] h1,html[lang=bn] h2,html[lang=bn] h3,html[lang=bn] h4,html[lang=bn] h5{letter-spacing:0;line-height:1.4}

/* load more + card reveal */
.pop{animation:pop .55s var(--ease) both}
@keyframes pop{from{opacity:0;transform:translateY(24px) scale(.97)}to{opacity:1;transform:none}}
.t-less{display:none}
.more-btn.expanded .t-less{display:inline}
.more-btn.expanded .t-more{display:none}
.more-btn i{display:inline-block;transition:transform .35s var(--ease)}
.more-btn.expanded i{transform:rotate(180deg)}

/* navbar pills (Tutorial + language) */
.navbar .container{flex-wrap:nowrap}
.nav-pill{display:inline-flex;align-items:center;gap:.3rem;white-space:nowrap;font-weight:600;font-size:.8rem;border-radius:50px;padding:.32rem .7rem;transition:.35s var(--ease);line-height:1.4}
.tut-btn{background:#e62117;border:1.5px solid #e62117;color:#fff}
.tut-btn:hover{background:#c4160d;border-color:#c4160d;color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(230,33,23,.4)}
.navbar-brand img{height:80px; width: 90px;}
@media(min-width:576px){.nav-pill{font-size:.9rem;padding:.35rem 1rem}.navbar-brand img{height:52px}}
@media(min-width:992px) and (max-width:1199px){.navbar .nav-link{padding:.5rem .5rem;font-size:.88rem}.nav-pill{font-size:.8rem;padding:.3rem .7rem}}

/* teachers */
.tcard{background:#fff;border:1px solid var(--line);border-radius:22px;padding:2rem 1.4rem;text-align:center;height:100%;box-shadow:var(--sh1);transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s}
.tcard:hover{transform:translateY(-8px);box-shadow:var(--sh2);border-color:rgba(224,161,14,.6)}
.avatar{width:110px;height:110px;border-radius:50%;margin:0 auto 1.2rem;background:linear-gradient(135deg,var(--navy),#1a4290);color:var(--gold2);display:grid;place-items:center;font-size:3.4rem;box-shadow:0 0 0 5px #fff,0 0 0 8px rgba(224,161,14,.55);overflow:hidden;transition:.45s var(--ease)}
.avatar img{width:100%;height:100%;object-fit:cover}
.tcard:hover .avatar{transform:scale(1.06)}
.tcard h3{font-size:1.1rem;margin-bottom:.2rem}
.tcard .role{display:inline-block;font-size:.8rem;font-weight:600;color:#9a6b00;background:rgba(224,161,14,.15);border-radius:50px;padding:.15rem .8rem;margin-bottom:.8rem}
.tcard p{color:var(--muted);font-size:.9rem;margin:0}

/* reviews slider */
.rev .carousel-inner{padding:15px 12px 30px;margin:-15px -12px 0}
.rcard{background:#fff;border:1px solid var(--line);border-radius:22px;padding:2rem;height:100%;box-shadow:var(--sh1);position:relative;transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.rcard:hover{transform:translateY(-6px);box-shadow:var(--sh2)}
.rcard .qi{position:absolute;right:20px;top:6px;font-size:4rem;color:rgba(224,161,14,.25)}
.stars{color:var(--gold);margin-bottom:.8rem;letter-spacing:2px}
.rcard p{color:var(--ink);font-size:1rem;min-height:5.2rem}
.who{display:flex;align-items:center;gap:.8rem;border-top:1px dashed var(--line);padding-top:1rem}
.who .av{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--navy),#1a4290);color:var(--gold2);display:grid;place-items:center;font-size:1.4rem;flex:none}
.who b{display:block;font-size:.95rem}
.who small{color:var(--muted)}
.rev-ctrl{display:flex;align-items:center;justify-content:center;gap:1.2rem}
.rc-btn{width:46px;height:46px;border-radius:50%;border:1.5px solid var(--line);background:#fff;color:var(--navy);box-shadow:var(--sh1);transition:.35s var(--ease)}
.rc-btn:hover{background:var(--navy);color:#fff;transform:translateY(-3px);box-shadow:var(--sh2)}
.rev-ctrl .carousel-indicators{position:static;margin:0;gap:.4rem}
.rev-ctrl .carousel-indicators button{width:10px;height:10px;border-radius:50%;border:0;background:#c9d2e6;opacity:1;margin:0;transition:.35s var(--ease)}
.rev-ctrl .carousel-indicators button.active{background:var(--gold);width:28px;border-radius:10px}


body.is-bn, body.is-bn h1, body.is-bn h2, body.is-bn h3, body.is-bn h4, body.is-bn p, body.is-bn a, body.is-bn button, body.is-bn input, body.is-bn select {
  font-family: 'Hind Siliguri', 'Poppins', sans-serif !important;
}