:root{--p:#2563eb;--pd:#1d4ed8;--pl:#eaf1ff;--bg:#f5f7fb;--card:#fff;--tx:#172033;--mu:#6b7686;--bd:#e5eaf2;--ok:#16a34a;--er:#dc2626;--wa:#d97706;--r:16px;--sh:0 1px 2px rgba(16,24,40,.04),0 4px 14px rgba(16,24,40,.06)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"Hind Siliguri","Noto Sans Bengali",system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--tx);line-height:1.65;font-size:16px}
a{color:var(--p);text-decoration:none}img{max-width:100%;display:block}h1,h2,h3{line-height:1.3;margin:0 0 12px}h2{font-size:24px}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
/* header */
.top{background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--bd);position:sticky;top:0;z-index:30}
.top .wrap{display:flex;align-items:center;gap:18px;height:66px}
.logo{font-weight:700;font-size:21px;color:var(--tx);white-space:nowrap}.logo i{font-style:normal;background:var(--p);color:#fff;border-radius:10px;padding:2px 8px;margin-right:6px}
.hs{flex:1;max-width:460px}.hs input{width:100%;border:1px solid var(--bd);background:#f1f4f9;border-radius:99px;padding:9px 18px;font:inherit}
.hs input:focus{outline:2px solid #bcd1ff;background:#fff}
.top nav{margin-left:auto;display:flex;gap:6px;align-items:center}.top nav a{color:var(--tx);padding:7px 12px;border-radius:99px;font-weight:600;font-size:15px}.top nav a:hover{background:var(--pl);color:var(--p)}
.badge{background:var(--p);color:#fff;border-radius:99px;padding:0 8px;font-size:12px;margin-left:2px}
.bnav{display:none}
/* buttons */
.btn{display:inline-block;background:var(--p);color:#fff;border:0;border-radius:12px;padding:11px 20px;font:inherit;font-weight:600;cursor:pointer;transition:.15s}
.btn:hover{background:var(--pd);transform:translateY(-1px)}.btn.sec{background:var(--pl);color:var(--p)}.btn.sec:hover{background:#dbe7ff}
.btn.red{background:#fee2e2;color:var(--er)}.btn.red:hover{background:var(--er);color:#fff}.btn.grn{background:var(--ok)}.btn.sm{padding:6px 14px;font-size:14px;border-radius:9px}.btn.block{display:block;width:100%;text-align:center}
/* hero */
.hero{background:linear-gradient(120deg,#1e3a8a,#2563eb 55%,#38bdf8);color:#fff;border-radius:24px;padding:46px 36px;margin-bottom:22px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.1)}
.hero h1{font-size:34px;margin:0 0 8px}.hero p{margin:0;opacity:.9;font-size:17px}.hero .pays{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap}.hero .pays span{background:rgba(255,255,255,.18);border-radius:99px;padding:3px 14px;font-size:14px}
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:16px}.chip{white-space:nowrap;background:#fff;border:1px solid var(--bd);color:var(--tx);border-radius:99px;padding:6px 16px;font-weight:600;font-size:14px}
.chip.on,.chip:hover{background:var(--p);color:#fff;border-color:var(--p)}
/* products */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.pcard{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.2s;box-shadow:var(--sh)}
.pcard:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(16,24,40,.12)}
.pcard .im{aspect-ratio:1/1;background:linear-gradient(135deg,#eef2f9,#e2e9f5);display:flex;align-items:center;justify-content:center;color:var(--mu);font-size:40px;position:relative}
.pcard .im img{width:100%;height:100%;object-fit:cover}.pcard .im .tag{position:absolute;left:10px;top:10px}
.pcard .bd{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}.pcard .nm{color:var(--tx);font-weight:600;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.7em}
.pcard .ft{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px}.price{font-weight:700;color:var(--p);font-size:19px}
.tag{font-size:12px;background:#fff;color:var(--p);border-radius:99px;padding:1px 10px;display:inline-block;font-weight:600;box-shadow:var(--sh)}.tag.v{color:var(--wa)}
.empty{text-align:center;color:var(--mu);padding:50px 0}
/* cards & forms */
.card{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:22px;margin-bottom:18px;box-shadow:var(--sh)}
.form label{display:block;margin:14px 0 5px;font-weight:600;font-size:14px;color:#33415a}
.form input,.form select,.form textarea{width:100%;padding:11px 14px;border:1px solid var(--bd);border-radius:12px;font:inherit;background:#fff;transition:.15s}
.form input:focus,.form select:focus,.form textarea:focus{outline:3px solid #cfe0ff;border-color:var(--p)}
.auth{max-width:430px;margin:36px auto;padding:30px}.auth h2{text-align:center}
.row{display:flex;gap:14px;flex-wrap:wrap}.row>*{flex:1;min-width:200px}
.perm{display:flex!important;align-items:center;gap:8px;padding:5px 0;font-weight:400!important}.perm input{width:auto!important}
.pay{display:flex!important;align-items:center;gap:12px;border:2px solid var(--bd);border-radius:14px;padding:13px 16px;margin:8px 0!important;cursor:pointer;font-weight:600!important;background:#fff}
.pay:hover{border-color:#a9c4ff}.pay:has(input:checked){border-color:var(--p);background:var(--pl)}.pay input{width:auto!important;accent-color:var(--p)}.pay .ic{font-size:24px}.pay small{display:block;color:var(--mu);font-weight:400}
.steps{display:flex;gap:8px;margin:0 0 18px;font-size:14px}.steps span,.steps b{padding:4px 14px;border-radius:99px;background:#e9edf5;color:var(--mu)}.steps b{background:var(--p);color:#fff}
.pd{display:grid;grid-template-columns:1fr 1fr;gap:30px}
/* tables */
table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:12px 14px;border-bottom:1px solid var(--bd);text-align:left;font-size:15px}
th{background:#f6f8fc;font-size:13px;color:var(--mu);font-weight:600}tr:last-child td{border-bottom:0}.tw{overflow-x:auto;padding:0}.card.tw table{border-radius:var(--r)}
.msg{padding:12px 16px;border-radius:12px;margin:0 0 16px;font-weight:600}.msg.ok{background:#e7f8ee;color:#136c35}.msg.err{background:#fdecec;color:#a21c1c}
.st{padding:2px 12px;border-radius:99px;font-size:12px;background:#eef2ff;font-weight:600;white-space:nowrap}.st.paid,.st.completed{background:#e7f8ee;color:#136c35}.st.cancelled,.st.failed{background:#fdecec;color:#a21c1c}.st.verifying,.st.pending{background:#fff4e0;color:#99600a}
.foot{background:#0f1b33;color:#9fb0cf;margin-top:50px;padding:34px 0;text-align:center;font-size:14px}.foot b{color:#fff;font-size:17px;display:block;margin-bottom:4px}
/* admin */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:20px}
.stat{background:#fff;border:1px solid var(--bd);border-radius:var(--r);padding:18px;box-shadow:var(--sh);display:flex;gap:14px;align-items:center}.stat .ico{font-size:26px;background:var(--pl);border-radius:14px;width:52px;height:52px;display:flex;align-items:center;justify-content:center}
.stat b{font-size:24px;display:block;line-height:1.2}.stat span{color:var(--mu);font-size:14px}
.qa{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.adm{display:flex;min-height:100vh}.side{width:240px;background:#0f1b33;color:#cfd9f2;padding:20px 12px;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto}
.side h2{color:#fff;margin:0 10px 18px;font-size:18px}.side a{display:block;padding:10px 14px;color:#b9c6e4;border-radius:10px;margin-bottom:3px;font-size:15px}
.side a:hover{background:#1b2d52;color:#fff}.side a.on{background:var(--p);color:#fff}.main{flex:1;padding:26px;min-width:0}
@media(max-width:820px){
 .hs{display:none}.top nav a.hide{display:none}.hero{padding:30px 22px}.hero h1{font-size:26px}.pd{grid-template-columns:1fr}
 .grid{grid-template-columns:repeat(2,1fr);gap:12px}.pcard .bd{padding:10px}.price{font-size:16px}
 body{padding-bottom:64px}.bnav{display:flex;position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--bd);z-index:40}
 .bnav a{flex:1;text-align:center;padding:8px 0;color:var(--mu);font-size:12px;font-weight:600}.bnav a b{display:block;font-size:20px}
 .adm{flex-direction:column}.side{width:100%;height:auto;position:static;display:flex;overflow-x:auto;padding:10px;gap:4px}.side h2{display:none}.side a{white-space:nowrap;margin:0}.main{padding:16px}
}
/* order tracking & tabs */
.tl{display:flex;margin:6px 0 20px}.tl .s{flex:1;text-align:center;position:relative;font-size:13px;color:var(--mu)}
.tl .s:before{content:"";position:absolute;top:15px;left:-50%;width:100%;height:3px;background:var(--bd);z-index:0}.tl .s:first-child:before{display:none}
.tl .s i{font-style:normal;position:relative;z-index:1;display:flex;width:32px;height:32px;margin:0 auto 4px;border-radius:50%;background:#e9edf5;align-items:center;justify-content:center;font-weight:700}
.tl .s.done{color:var(--ok)}.tl .s.done i{background:var(--ok);color:#fff}.tl .s.done:before{background:var(--ok)}
.tl .s.now{color:var(--p);font-weight:600}.tl .s.now i{background:var(--p);color:#fff;box-shadow:0 0 0 5px #dbe7ff}.tl .s.now:before{background:var(--ok)}
.banner{border-radius:14px;padding:14px 18px;margin-bottom:18px;background:var(--pl);color:#1e3a8a;font-weight:600}.banner.ok{background:#e7f8ee;color:#136c35}.banner.er{background:#fdecec;color:#a21c1c}.banner.wa{background:#fff4e0;color:#99600a}
.tabs{display:flex;gap:8px;overflow-x:auto;margin-bottom:14px}.tabs a{white-space:nowrap;background:#fff;border:1px solid var(--bd);border-radius:99px;padding:6px 16px;color:var(--tx);font-weight:600;font-size:14px}
.tabs a.on{background:var(--p);color:#fff;border-color:var(--p)}.tabs small{opacity:.75;margin-left:4px}
.ocard{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;border:1px solid var(--bd);border-radius:14px;padding:14px 16px;margin-bottom:10px;color:var(--tx);background:#fff}
.ocard:hover{border-color:#a9c4ff;box-shadow:var(--sh)}.ocard small{color:var(--mu)}
.next{border:2px solid var(--p);background:#f4f8ff}
/* gallery & variants */
.gal{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}.gal img{width:70px;height:70px;object-fit:cover;border-radius:10px;border:2px solid var(--bd);cursor:pointer}.gal img:hover{border-color:var(--p)}
.vopts{display:flex;gap:8px;flex-wrap:wrap}.vchip{margin:0!important;cursor:pointer}.vchip input{position:absolute;opacity:0;width:0!important}
.vchip span{display:inline-block;border:2px solid var(--bd);border-radius:12px;padding:7px 16px;font-weight:600;background:#fff}.vchip:hover span{border-color:#a9c4ff}
.vchip input:checked+span{border-color:var(--p);background:var(--pl);color:var(--p)}.vchip.dis span{opacity:.45;text-decoration:line-through;cursor:not-allowed}
.vrow{align-items:center;margin-bottom:8px}
/* batch 3: banners, wishlist, reviews */
.slider{position:relative;aspect-ratio:16/6;border-radius:24px;overflow:hidden;margin-bottom:22px;background:#dde5f3}
.slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity .7s;display:flex;align-items:flex-end;color:#fff}.slide.on{opacity:1;z-index:1}
.slide span{padding:24px 30px;background:linear-gradient(transparent,rgba(0,0,0,.65));width:100%}.slide span b{display:block;font-size:26px}
.pcard{position:relative}.heart{position:absolute;right:8px;top:8px;z-index:3;margin:0}.heart button{background:#fff;border:0;border-radius:50%;width:36px;height:36px;font-size:17px;cursor:pointer;box-shadow:var(--sh)}
.cut{color:var(--mu);font-size:13px}.stars{color:#d97706;font-weight:600}.disc{background:#fee2e2;color:var(--er);border-radius:99px;padding:1px 10px;font-size:13px;font-weight:700;margin-left:6px}
.rv{border-bottom:1px solid var(--bd);padding:12px 0}.rv:last-child{border:0}.rv .stars{font-size:15px}.rv small{color:var(--mu)}
@media(max-width:820px){.slider{aspect-ratio:16/9}.slide span b{font-size:19px}}
.chart{width:100%;height:auto;margin-top:8px}