:root{
  --bg:#0b1020;
  --card:#121a33;
  --card2:#0f1730;
  --text:#eaf0ff;
  --muted:#b7c2e0;
  --accent:#5b7cfa;
  --accent2:#25D366;
  --border:rgba(255,255,255,.10);
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --radius:16px;
  --max:1100px;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1000px 600px at 15% 10%, rgba(91,124,250,.22), transparent 60%),
              radial-gradient(900px 500px at 80% 20%, rgba(37,211,102,.14), transparent 60%),
              var(--bg);
  color:var(--text);
  line-height:1.55;
}
a{color:inherit}
.wrap{max-width:var(--max); margin:0 auto; padding:0 18px;}
.topbar{
  position:sticky; top:0; z-index:20;
  backdrop-filter: blur(10px);
  background: rgba(11,16,32,.65);
  border-bottom:1px solid var(--border);
}
.topbar-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 0;
  gap:12px;
}
.brand{
  display:flex; align-items:center; gap:10px; font-weight:800;
  letter-spacing:.2px;
}
.logo{
  width:34px; height:34px; border-radius:10px;
  background: linear-gradient(135deg, var(--accent), rgba(37,211,102,.9));
  box-shadow: 0 10px 25px rgba(91,124,250,.25);
}
.nav{
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
  justify-content:flex-end;
}
.pill{
  display:inline-flex; align-items:center; gap:8px;
  padding:9px 12px; border-radius:999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.04);
  color: var(--text);
  text-decoration:none;
  font-weight:600;
  cursor:pointer;
  font-size:14px;
}
.pill:hover{border-color:rgba(255,255,255,.18)}
.pill.primary{
  background: linear-gradient(135deg, rgba(91,124,250,.95), rgba(91,124,250,.70));
  border-color: transparent;
}
.pill.whatsapp{
  background: linear-gradient(135deg, rgba(37,211,102,.95), rgba(37,211,102,.70));
  border-color: transparent;
}

header.hero{padding:56px 0 24px;}
.grid2{
  display:grid; gap:18px;
  grid-template-columns: 1.2fr .8fr;
  align-items:stretch;
}
@media (max-width: 920px){
  .grid2{grid-template-columns:1fr;}
}
.hero-card{
  background: linear-gradient(180deg, rgba(18,26,51,.9), rgba(15,23,48,.9));
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:24px;
  overflow:hidden;
  position:relative;
}
.badge{
  display:inline-flex; align-items:center; gap:8px;
  border:1px solid rgba(91,124,250,.35);
  background: rgba(91,124,250,.12);
  padding:7px 12px;
  border-radius:999px;
  font-weight:700;
  color: #dbe4ff;
  font-size:13px;
}
h1{
  margin:14px 0 10px;
  font-size:44px;
  line-height:1.08;
  letter-spacing:-.5px;
}
@media (max-width: 520px){
  h1{font-size:34px}
}
.sub{
  color:var(--muted);
  font-size:16px;
  margin:0 0 18px;
  max-width: 60ch;
}
.cta-row{
  display:flex; gap:10px; flex-wrap:wrap; margin-top:16px;
}
.mini{
  margin-top:14px;
  color: rgba(234,240,255,.72);
  font-size:13px;
}
.mini strong{color:#fff}
.kpi{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px;
  margin-top:16px;
}
@media (max-width: 520px){
  .kpi{grid-template-columns:1fr;}
}
.kpi .box{
  border:1px solid var(--border);
  background: rgba(255,255,255,.03);
  border-radius:14px;
  padding:12px;
}
.kpi .n{font-size:20px; font-weight:900}
.kpi .t{color:var(--muted); font-size:13px}

.side-card{
  background: rgba(18,26,51,.55);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:18px;
  box-shadow: var(--shadow);
  display:flex;
  flex-direction:column;
  gap:12px;
}
.demo{
  aspect-ratio: 16/9;
  border-radius: 14px;
  border:1px solid var(--border);
  overflow:hidden;
  background: rgba(255,255,255,.03);
  display:flex; align-items:center; justify-content:center;
  color: rgba(234,240,255,.75);
  font-weight:700;
  position:relative;
}
.demo small{color:rgba(234,240,255,.55); font-weight:600}
.list{
  display:grid; gap:10px;
}
.li{
  display:flex; gap:10px; align-items:flex-start;
  border:1px solid var(--border);
  background: rgba(255,255,255,.03);
  border-radius:14px;
  padding:12px;
}
.dot{
  width:10px; height:10px; border-radius:50%;
  margin-top:6px;
  background: var(--accent);
  flex: 0 0 auto;
  box-shadow: 0 0 0 6px rgba(91,124,250,.12);
}
section{padding:26px 0;}
.section-title{
  font-size:24px;
  margin:0 0 10px;
  letter-spacing:-.2px;
}
.section-sub{
  margin:0 0 18px;
  color:var(--muted);
  max-width: 75ch;
}
.cards{
  display:grid; gap:14px;
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 920px){
  .cards{grid-template-columns:1fr;}
}
.card{
  background: rgba(18,26,51,.6);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:18px;
  box-shadow: var(--shadow);
}
.card h3{margin:2px 0 8px; font-size:18px}
.card p{margin:0; color:var(--muted)}
.codebox{
  background: rgba(0,0,0,.25);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:16px;
  overflow:auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color: #dbe4ff;
}
.pricing{
  display:grid; gap:14px;
  grid-template-columns: repeat(3, 1fr);
  align-items:stretch;
}
@media (max-width: 920px){
  .pricing{grid-template-columns:1fr;}
}
.price{
  background: linear-gradient(180deg, rgba(18,26,51,.72), rgba(15,23,48,.72));
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:18px;
  box-shadow: var(--shadow);
  position:relative;
}
.price.best{
  border-color: rgba(91,124,250,.55);
  box-shadow: 0 18px 55px rgba(91,124,250,.15);
}
.tag{
  position:absolute; top:14px; right:14px;
  font-size:12px; font-weight:800;
  padding:6px 10px; border-radius:999px;
  background: rgba(91,124,250,.14);
  border:1px solid rgba(91,124,250,.35);
  color:#dbe4ff;
}
.pname{font-weight:900; font-size:18px}
.pcost{font-weight:900; font-size:30px; margin:6px 0}
.pcost span{font-size:13px; color:var(--muted); font-weight:700}
.pf{margin:10px 0 0; padding:0 0 0 16px; color:var(--muted)}
.pf li{margin:6px 0}
footer{
  padding:28px 0 36px;
  border-top:1px solid var(--border);
  color: rgba(234,240,255,.72);
}

/* Language handling */
[data-lang]{display:none;}
.lang-en [data-lang="en"]{display:block;}
.lang-bn [data-lang="bn"]{display:block;}