:root{--ink:#0d2b21;--g:#0f7b4f;--gd:#0a5c3b;--mint:#e4f5ec;--gold:#f0b429;--bg:#f6faf7;--line:#d9e7df;--mut:#4d675c;--r:20px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:'Anek Bangla','Inter',system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
html[dir=rtl] body{font-family:'Noto Naskh Arabic','Anek Bangla',serif}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.w{width:min(1120px,100% - 32px);margin-inline:auto}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:8px}
.ic{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.top{position:sticky;top:0;z-index:50;background:rgba(13,43,33,.92);backdrop-filter:blur(14px);color:#fff;transition:box-shadow .2s}
.top.s{box-shadow:0 8px 30px rgba(0,0,0,.25)}
.top .w{display:flex;align-items:center;gap:14px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;margin-inline-end:auto}
.logo i{width:34px;height:34px;border-radius:11px 11px 4px 4px;background:var(--gold);display:grid;place-items:center;color:var(--ink)}
.nav{display:none;gap:22px;font-weight:600;font-size:.95rem;color:#cfe6da}
.nav a:hover{color:#fff}
.lang{display:flex;gap:2px;font-size:.78rem;font-weight:700}
.lang a{padding:4px 8px;border-radius:8px;color:#9fc4b2}
.lang a.on{background:rgba(255,255,255,.14);color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:14px;font-weight:700;font-size:1rem;border:0;cursor:pointer;transition:transform .15s,background .15s;font-family:inherit}
.btn:active{transform:scale(.97)}
.b1{background:var(--gold);color:#2b1d00;box-shadow:0 10px 28px rgba(240,180,41,.35)}
.b1:hover{background:#f7c548}
.b2{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.28)}
.b2:hover{background:rgba(255,255,255,.18)}
.b3{background:var(--g);color:#fff}
.b3:hover{background:var(--gd)}
.sm{min-height:40px;padding:0 16px;font-size:.9rem;border-radius:12px}
.login{display:none}

.hero{background:var(--ink);color:#fff;position:relative;overflow:hidden;padding:44px 0 0}
.hero .w{display:grid;gap:36px;position:relative}
.hero h1{font-size:clamp(2rem,8.2vw,3.7rem);line-height:1.18;font-weight:800;letter-spacing:-.01em;max-width:15ch}
.hero p.lead{margin-top:16px;font-size:1.08rem;color:#c3dccf;max-width:46ch}
.cta{display:flex;flex-direction:column;gap:12px;margin-top:26px}
.pts{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:22px;color:#9fc4b2;font-size:.9rem;font-weight:600}
.pts span:before{content:"✓";color:var(--gold);margin-inline-end:6px;font-weight:800}
.stage{position:relative;display:flex;justify-content:center;align-items:flex-end;min-height:420px}
.arch{position:absolute;bottom:0;width:min(330px,88%);height:380px;border-radius:999px 999px 0 0;background:linear-gradient(180deg,#14573d,#0f7b4f);box-shadow:inset 0 0 0 10px rgba(255,255,255,.05)}
.phone{position:relative;width:260px;background:#fff;color:var(--ink);border-radius:30px 30px 0 0;padding:16px 14px 0;box-shadow:0 -10px 60px rgba(0,0,0,.35);height:400px;overflow:hidden}
.phone h4{font-size:.8rem;color:var(--mut);font-weight:600}
.big{font-size:2.3rem;font-weight:800;line-height:1.1;color:var(--g)}
.big small{font-size:1rem;color:var(--mut);font-weight:600}
.bar{height:8px;border-radius:8px;background:var(--mint);margin:10px 0 14px;overflow:hidden}
.bar b{display:block;height:100%;width:0;background:var(--g);border-radius:8px;transition:width 1.6s cubic-bezier(.2,.8,.2,1)}
.row{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:14px;background:var(--bg);margin-top:8px;font-size:.84rem;font-weight:600}
.row i{width:30px;height:30px;border-radius:10px;background:var(--mint);color:var(--g);display:grid;place-items:center;flex:none}
.row em{margin-inline-start:auto;font-style:normal;color:var(--g);font-weight:800}
.nb{position:absolute;bottom:8px;inset-inline:0;text-align:center;font-size:.68rem;color:#8aa89a}
.tag{position:absolute;background:#fff;color:var(--ink);border-radius:14px;padding:9px 14px;font-weight:700;font-size:.82rem;box-shadow:0 14px 34px rgba(0,0,0,.28);display:none;align-items:center;gap:8px}
.tag i{width:8px;height:8px;border-radius:50%;background:#22c55e}
.t1{top:70px;inset-inline-start:0}.t2{top:190px;inset-inline-end:0}

.sec{padding:64px 0}
.sec h2{font-size:clamp(1.65rem,5.6vw,2.55rem);line-height:1.25;font-weight:800;max-width:22ch}
.sec .sub{margin-top:12px;color:var(--mut);max-width:56ch;font-size:1.04rem}
.hd{margin-bottom:34px}
.bento{display:grid;gap:14px}
.f{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px}
.f .ic{width:44px;height:44px;padding:10px;border-radius:14px;background:var(--mint);color:var(--g);margin-bottom:14px}
.f h3{font-size:1.15rem;font-weight:800}
.f p{margin-top:6px;color:var(--mut);font-size:.96rem}
.f.dk{background:var(--g);border-color:var(--g);color:#fff}
.f.dk .ic{background:rgba(255,255,255,.16);color:#fff}
.f.dk p{color:#d3f0e1}
.f.gd{background:#fff6dc;border-color:#f3dfa0}
.f.gd .ic{background:#fde9a8;color:#7a5200}
.steps{display:grid;gap:14px;counter-reset:s}
.st{position:relative;padding:22px 22px 22px 74px;background:#fff;border:1px solid var(--line);border-radius:var(--r)}
[dir=rtl] .st{padding:22px 74px 22px 22px}
.st:before{counter-increment:s;content:counter(s,bengali);position:absolute;inset-inline-start:20px;top:20px;width:40px;height:40px;border-radius:50%;background:var(--ink);color:var(--gold);font-weight:800;display:grid;place-items:center}
.st h3{font-weight:800;font-size:1.1rem}.st p{color:var(--mut);margin-top:4px}
.alt{background:#fff;border-block:1px solid var(--line)}

.sw{display:inline-flex;background:var(--mint);border-radius:14px;padding:4px;margin-bottom:24px}
.sw button{border:0;background:none;font:inherit;font-weight:700;padding:9px 20px;border-radius:11px;cursor:pointer;color:var(--mut)}
.sw button.on{background:var(--ink);color:#fff}
.pk{display:grid;gap:14px}
.p{background:var(--bg);border:1px solid var(--line);border-radius:24px;padding:26px;display:flex;flex-direction:column}
.p h3{font-size:1.2rem;font-weight:800}
.p .d{color:var(--mut);font-size:.94rem;margin-top:4px}
.pr{font-size:2.3rem;font-weight:800;margin:16px 0 4px;color:var(--g)}
.pr small{font-size:.95rem;color:var(--mut);font-weight:600}
.sv{color:#8a5d00;background:#fff1c7;border-radius:8px;padding:2px 10px;font-size:.8rem;font-weight:700;align-self:flex-start;display:none}
.yr .sv.has{display:inline-block}
.p ul{list-style:none;margin:18px 0 22px;display:grid;gap:8px;font-size:.95rem}
.p li:before{content:"✓";color:var(--g);font-weight:800;margin-inline-end:8px}
.p .btn{margin-top:auto}
.m,.y{display:none}.mo .m,.yr .y{display:inline}

details{background:#fff;border:1px solid var(--line);border-radius:16px;margin-top:10px}
summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:700;display:flex;justify-content:space-between;gap:12px;align-items:center}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";font-size:1.5rem;color:var(--g);line-height:1;transition:transform .2s}
details[open] summary:after{transform:rotate(45deg)}
details p{padding:0 20px 18px;color:var(--mut)}

.end{background:var(--ink);color:#fff;text-align:center;padding:64px 0}
.end h2{margin-inline:auto;max-width:18ch}
.end p{color:#c3dccf;margin:12px auto 0;max-width:46ch}
.end .cta{align-items:center;margin-top:26px;justify-content:center}
.end .cta .btn{width:100%;max-width:340px}
footer{background:#08201a;color:#8fb3a2;padding:26px 0 96px;font-size:.88rem}
footer .w{display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between}
footer a:hover{color:#fff}
.bar-cta{position:fixed;inset-inline:0;bottom:0;z-index:60;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(13,43,33,.96);backdrop-filter:blur(12px);transform:translateY(110%);transition:transform .3s;display:flex;gap:10px}
.bar-cta.on{transform:none}
.bar-cta .btn{flex:1;min-height:46px}

@media(min-width:760px){
 .cta{flex-direction:row}
 .nav{display:flex}.login{display:inline-flex}
 .bento{grid-template-columns:repeat(4,1fr)}
 .f.w2{grid-column:span 2}
 .steps,.pk{grid-template-columns:repeat(3,1fr)}
 .tag{display:flex}
 .sec{padding:92px 0}
 footer{padding-bottom:26px}
 .bar-cta{display:none}
}
@media(min-width:960px){
 .hero{padding-top:70px}
 .hero .w{grid-template-columns:1.1fr .9fr;align-items:center}
 .stage{min-height:520px}.arch{height:470px;width:360px}.phone{width:290px;height:480px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}