:root{--navy:#1E3A8A;--navy2:#2547A8;--deep:#0F1E4D;--text:#111111;--orange:#FF5A1F;--muted:#4B5563;--line:#E6EAF2;--soft:#F6F8FC;--r:18px;--sh:0 1px 2px rgba(15,30,77,.04),0 12px 32px rgba(15,30,77,.08);--sh2:0 30px 80px rgba(15,30,77,.18)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:Inter,system-ui,sans-serif;color:var(--text);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.bn{font-family:"Noto Sans Bengali",sans-serif}
a{color:var(--navy)}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
/* header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.78);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid rgba(230,234,242,.8)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:800;font-size:20px;letter-spacing:-.01em}
.brand img{width:38px;height:38px;border-radius:9px}
.nav ul{display:flex;gap:30px;list-style:none}
.nav ul a{text-decoration:none;color:#374151;font-weight:500;font-size:15px;transition:color .2s}
.nav ul a:hover{color:var(--navy)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--navy);color:#fff;text-decoration:none;padding:13px 22px;border-radius:12px;font-weight:600;font-size:15px;box-shadow:0 8px 20px rgba(30,58,138,.25);transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px);background:var(--navy2);box-shadow:0 12px 28px rgba(30,58,138,.32)}
.btn.ghost{background:#fff;color:var(--navy);box-shadow:none;border:1.5px solid #CBD5EE}
.btn.ghost:hover{border-color:var(--navy)}
.btn svg{width:18px;height:18px}
/* hero */
.hero{position:relative;padding:84px 0 40px;text-align:center;background:radial-gradient(900px 480px at 50% -10%,#E3EAFB 0%,rgba(227,234,251,0) 70%),linear-gradient(180deg,#fff, #F6F8FC)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(30,58,138,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(30,58,138,.05) 1px,transparent 1px);background-size:44px 44px;-webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 30%,transparent 70%);mask-image:radial-gradient(ellipse at 50% 0%,#000 30%,transparent 70%);pointer-events:none}
.hero .wrap{position:relative}
.pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);box-shadow:var(--sh);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;color:var(--navy)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(255,90,31,.15)}
h1{font-size:60px;line-height:1.07;letter-spacing:-.035em;color:var(--deep);max-width:900px;margin:22px auto 0;font-weight:800}
h1 span{background:linear-gradient(90deg,var(--navy),#3B5FCF);-webkit-background-clip:text;background-clip:text;color:transparent}
.tag-bn{font-size:22px;margin-top:16px;color:var(--text);font-weight:600}
.lead{font-size:19px;color:var(--muted);max-width:660px;margin:14px auto 0}
.cta{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap;justify-content:center}
/* browser frame */
.browser{background:#fff;border-radius:16px;box-shadow:var(--sh2);border:1px solid #DDE3EF;overflow:hidden}
.bar{display:flex;align-items:center;gap:7px;padding:11px 14px;background:linear-gradient(#FAFBFD,#F1F4F9);border-bottom:1px solid var(--line)}
.bar i{width:11px;height:11px;border-radius:50%;background:#D5DAE4}
.bar .url{flex:1;margin-left:12px;max-width:340px;background:#fff;border:1px solid var(--line);border-radius:7px;font-size:12px;color:#6B7280;padding:3px 10px;font-style:normal}
.browser img{cursor:zoom-in;width:100%}
.hero-shot{max-width:1060px;margin:56px auto 0;position:relative}
.hero-shot::before{content:"";position:absolute;inset:8% -4% -6%;background:radial-gradient(closest-side,rgba(37,71,168,.28),transparent);filter:blur(30px);z-index:-1}
/* sections */
section{padding:96px 0}
section.alt{background:var(--soft)}
.head{text-align:center;max-width:680px;margin:0 auto}
.kicker{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--navy);display:inline-flex;align-items:center;gap:8px}
.kicker::before{content:"";width:18px;height:2px;background:var(--orange);border-radius:2px}
h2{font-size:42px;line-height:1.15;letter-spacing:-.03em;color:var(--deep);margin-top:10px;font-weight:800}
.sub{color:var(--muted);margin-top:14px;font-size:18px}
.grid{display:grid;gap:22px;margin-top:52px}
.g5{grid-template-columns:repeat(5,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;box-shadow:var(--sh);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(15,30,77,.12)}
.card h3{font-size:18px;color:var(--text);margin-bottom:6px;letter-spacing:-.01em}
.card p{font-size:15px;color:var(--muted)}
.ic{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#E8EEFC,#D6E0FA);color:var(--navy);margin-bottom:18px}
.ic svg{width:24px;height:24px}
/* showcase */
.feat{display:grid;grid-template-columns:1fr 1.35fr;gap:64px;align-items:center;margin-top:80px}
.feat.rev{grid-template-columns:1.35fr 1fr}.feat.rev .txt{order:2}
.feat h3{font-size:30px;letter-spacing:-.02em;color:var(--deep);line-height:1.2;margin-top:8px}
.feat p{color:var(--muted);margin-top:12px;font-size:17px}
ul.checks{list-style:none;margin-top:20px}
ul.checks li{padding-left:32px;position:relative;margin:10px 0;font-size:16px}
ul.checks li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:50%;background:#E8EEFC url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231E3A8A' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat}
/* tour */
.tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:40px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:6px;box-shadow:var(--sh);width:max-content;max-width:100%;margin-left:auto;margin-right:auto}
.tab{border:0;background:transparent;font:inherit;font-weight:600;font-size:15px;color:#374151;padding:10px 18px;border-radius:11px;cursor:pointer;display:flex;align-items:center;gap:8px;transition:background .2s,color .2s}
.tab svg{width:18px;height:18px}
.tab[aria-selected=true]{background:var(--navy);color:#fff;box-shadow:0 6px 16px rgba(30,58,138,.25)}
.panel{display:none;margin-top:36px}.panel.on{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;animation:fade .45s ease}
.panel figure{margin:0}
.panel figcaption{font-size:14px;color:var(--muted);margin-top:12px;text-align:center}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
/* ai */
.ai{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.chat{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:var(--sh2)}
.chat-top{display:flex;align-items:center;gap:10px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:18px;font-weight:700}
.chat-top .ic{width:36px;height:36px;border-radius:10px;margin:0}
.chat-top small{display:block;font-weight:500;color:var(--muted);font-size:12px}
.msg{max-width:85%;padding:12px 16px;border-radius:16px;font-size:15px;margin-bottom:12px}
.msg.u{margin-left:auto;background:var(--navy);color:#fff;border-bottom-right-radius:4px}
.msg.b{background:var(--soft);border:1px solid var(--line);border-bottom-left-radius:4px}
.rep{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-top:10px}
.rep .f{width:36px;height:42px;border-radius:6px;background:#EEF2FB;color:var(--navy);font-size:10px;font-weight:800;display:flex;align-items:center;justify-content:center;border-bottom:3px solid var(--orange)}
.rep b{font-size:14px;display:block}.rep small{color:var(--muted);font-size:12px}
.chips{display:flex;gap:8px;margin-top:6px;flex-wrap:wrap}
.chip{font-size:13px;border:1px solid #CBD5EE;color:var(--navy);border-radius:999px;padding:5px 12px;background:#fff}
.input{display:flex;align-items:center;justify-content:space-between;border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-top:16px;color:#9CA3AF;font-size:14px}
.input span.s{width:30px;height:30px;border-radius:9px;background:var(--navy);display:flex;align-items:center;justify-content:center;color:#fff}
/* trust band */
.band{background:linear-gradient(135deg,var(--deep),var(--navy) 60%,#2B4FB8);color:#fff;border-radius:28px;padding:56px;display:flex;align-items:center;gap:40px;position:relative;overflow:hidden;box-shadow:var(--sh2)}
.band::after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;background:radial-gradient(closest-side,rgba(255,255,255,.14),transparent)}
.band .big{font-size:96px;font-weight:800;line-height:1;letter-spacing:-.04em}
.band h2{color:#fff;margin:0}.band p{color:#D6DEF5;margin-top:8px;font-size:18px}
.band .bar2{width:40px;height:3px;background:var(--orange);border-radius:3px;margin-bottom:14px}
/* pricing */
.price{font-size:34px;font-weight:800;color:var(--deep);margin:12px 0 4px;letter-spacing:-.02em}
.plan{position:relative;padding:36px}
.plan.hl{border:2px solid var(--navy)}
.badge{position:absolute;top:-13px;left:32px;background:#fff;border:1.5px solid var(--navy);color:var(--navy);font-size:12px;font-weight:700;border-radius:999px;padding:3px 12px}
.plan ul.checks li{font-size:15px}
.note{font-size:14px;color:var(--muted);margin-top:24px;text-align:center}
/* team */
.team .card{text-align:center}
.avatar{width:76px;height:76px;border-radius:50%;background:linear-gradient(135deg,var(--navy),#3B5FCF);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:22px;margin:0 auto 16px;box-shadow:0 0 0 6px #EEF2FB}
.role{color:var(--navy)!important;font-weight:600}
/* contact */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:52px}
.contact-grid a{text-decoration:none}
.contact-grid dd{font-size:16px;color:var(--text);font-weight:600;word-break:break-word}
.contact-grid dt{font-size:13px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
footer{background:var(--deep);color:#C7D2EE;padding:40px 0;font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
footer .brand{color:#fff}
/* lightbox */
.lb{position:fixed;inset:0;background:rgba(10,18,45,.86);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;z-index:100;padding:24px;cursor:zoom-out}
.lb.on{display:flex}.lb img{max-width:min(1400px,100%);max-height:90vh;border-radius:12px;box-shadow:var(--sh2)}
.lb button{position:absolute;top:18px;right:22px;background:#fff;border:0;width:40px;height:40px;border-radius:50%;font-size:22px;cursor:pointer}
/* reveal */
.rv{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}
@media(max-width:1000px){.g5{grid-template-columns:repeat(3,1fr)}.feat,.feat.rev,.ai{grid-template-columns:1fr;gap:32px}.feat.rev .txt{order:0}.nav ul{display:none}.contact-grid{grid-template-columns:1fr}}
@media(max-width:640px){h1{font-size:38px}.tag-bn{font-size:18px}.lead{font-size:17px}h2{font-size:30px}.g5{grid-template-columns:1fr 1fr}.g3,.g2{grid-template-columns:1fr}section{padding:68px 0}.hero{padding:56px 0 28px}.hero-shot{margin-top:40px}.nav .btn{padding:9px 14px;font-size:14px}.feat{margin-top:56px}.feat h3{font-size:24px}.band{flex-direction:column;align-items:flex-start;padding:36px 28px;gap:16px}.band .big{font-size:72px}.panel.on{grid-template-columns:1fr}.tab{padding:8px 12px;font-size:14px}.bar .url{display:none}.cta .btn{flex:1;justify-content:center}}
@media(max-width:640px){.g5{grid-template-columns:1fr;gap:14px}.g5 .card{display:grid;grid-template-columns:48px 1fr;column-gap:16px;padding:20px}.g5 .card .ic{grid-row:span 2;margin:0}.g5 .card h3{margin:0}.price{font-size:28px}.band h2{font-size:28px}}
.browser picture{display:block}.browser img{height:auto}