:root{--p:#0b5fff;--pd:#0a3fb0;--dk:#0b1b3a;--cta:#ff7a00;--ctad:#e06a00;--bg:#f6f8fc;--card:#fff;--tx:#1d2a44;--mu:#66738c;--bd:#e2e8f3;--ok:#0f9d58;--er:#d93025;--r:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI","Noto Sans Bengali","Nirmala UI",Kalpurush,Roboto,Arial,sans-serif;background:var(--bg);color:var(--tx);line-height:1.6;font-size:16px}
img{max-width:100%;height:auto}
a{color:var(--p);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.25;color:var(--dk);margin:0 0 .5em}
h1{font-size:clamp(1.7rem,5vw,2.8rem)}
h2{font-size:clamp(1.4rem,3.5vw,2rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
.sec{padding:44px 0}
.sec.alt{background:#fff}
.center{text-align:center}
.muted{color:var(--mu);font-size:.92rem}
.sub{color:var(--mu);max-width:640px;margin:0 auto 28px}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--bd)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;min-height:60px}
.logo{font-weight:800;font-size:1.4rem;color:var(--dk);letter-spacing:-.5px}
.logo span{color:var(--p)}
.logo:hover{text-decoration:none}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:8px 12px;border-radius:8px;color:var(--tx);font-weight:500}
.nav a:hover{background:var(--bg);text-decoration:none}
.nav .lang{border:1px solid var(--bd);font-size:.85rem}
.nav .btn{color:#fff;margin-left:6px}
.nv-t{display:none}
.nv-b{display:none;cursor:pointer;padding:10px}
.nv-b i{display:block;width:24px;height:2px;background:var(--dk);margin:5px 0}
@media(max-width:860px){
 .nv-b{display:block}
 .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;padding:10px 16px 16px;border-bottom:1px solid var(--bd);box-shadow:0 10px 20px rgba(0,0,0,.06)}
 .nv-t:checked~.nav{display:flex}
 .nav .btn{margin:6px 0 0;text-align:center}
}

/* buttons */
.btn{display:inline-block;border:0;border-radius:10px;padding:12px 22px;font:inherit;font-weight:700;cursor:pointer;background:var(--p);color:#fff;text-align:center;line-height:1.3}
.btn:hover{background:var(--pd);text-decoration:none}
.btn-cta{background:var(--cta)}
.btn-cta:hover{background:var(--ctad)}
.btn-line{background:#fff;color:var(--p);border:2px solid var(--p)}
.btn-line:hover{background:var(--p);color:#fff}
.btn.sm{padding:8px 14px;font-size:.92rem}
.btn.full{display:block;width:100%}
.btn-danger{background:var(--er)}

/* hero */
.hero{background:linear-gradient(135deg,#0b1b3a 0%,#0b3d9e 60%,#0b5fff 100%);color:#fff;padding:56px 0 64px}
.hero h1{color:#fff}
.hero p{font-size:1.1rem;max-width:680px;opacity:.95}
.hero .tag{display:inline-block;background:rgba(255,255,255,.15);border-radius:99px;padding:6px 16px;font-weight:700;margin-bottom:16px}
.hero .acts{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.hero .btn-line{background:transparent;color:#fff;border-color:#fff}
.hero .btn-line:hover{background:#fff;color:var(--dk)}
.page-h{background:#fff;border-bottom:1px solid var(--bd);padding:30px 0 22px}
.page-h h1{font-size:clamp(1.5rem,4vw,2.1rem);margin:0 0 4px}

/* grids + cards */
.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.g2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:20px;display:flex;flex-direction:column}
.card h3{margin-bottom:6px}
.card .price{font-size:1.7rem;font-weight:800;color:var(--p);margin:4px 0}
.card .adv{font-size:.9rem;color:var(--mu);margin-bottom:10px}
.card .grow{flex:1}
.card .acts{display:flex;gap:8px;margin-top:12px}
.card .acts .btn{flex:1;padding:10px 8px;font-size:.92rem}
.ticks{list-style:none;padding:0;margin:0 0 12px}
.ticks li{padding:4px 0 4px 26px;position:relative}
.ticks li:before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:800}
.step{text-align:center}
.step b{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--p);color:#fff;font-size:1.1rem;margin-bottom:8px}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chips span{background:#fff;border:1px solid var(--bd);border-radius:99px;padding:8px 18px;font-weight:600}
.quote{font-size:1.02rem}
.quote small{color:var(--mu)}
.thumb{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px;margin-bottom:12px;background:var(--bg)}
.cta-band{background:var(--dk);color:#fff;text-align:center;padding:44px 16px}
.cta-band h2{color:#fff}

/* tables */
.tbl-w{overflow-x:auto;background:#fff;border:1px solid var(--bd);border-radius:var(--r)}
table{border-collapse:collapse;width:100%}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--bd);vertical-align:top}
th{background:#f0f4fc;font-size:.9rem;white-space:nowrap}
tr:last-child td{border-bottom:0}
td.r,th.r{text-align:right;white-space:nowrap}

/* forms */
label{display:block;font-weight:600;margin:14px 0 5px}
input[type=text],input[type=tel],input[type=email],input[type=password],input[type=number],input[type=url],select,textarea{width:100%;padding:11px 12px;border:1px solid #cfd8e8;border-radius:10px;font:inherit;background:#fff;color:var(--tx)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--p);outline-offset:0;border-color:var(--p)}
textarea{min-height:120px;resize:vertical}
.form{background:#fff;border:1px solid var(--bd);border-radius:var(--r);padding:22px;max-width:720px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:600px){.row2{grid-template-columns:1fr}}
.chk{display:flex;gap:10px;align-items:flex-start;font-weight:400;margin:16px 0}
.chk input{margin-top:5px}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.advbox{background:#fff7ed;border:1px dashed var(--cta);border-radius:10px;padding:12px 14px;margin:16px 0;font-weight:600}
.paybox{background:#eef4ff;border:1px solid #c9dafc;border-radius:10px;padding:14px 16px;margin:14px 0}
.paybox h3{margin-bottom:6px}
.paybox ul{margin:0 0 8px;padding-left:18px}
.flash{padding:12px 16px;border-radius:10px;margin:14px 0;font-weight:600}
.flash.ok{background:#e6f6ec;color:#0b6b3a}
.flash.err{background:#fdecea;color:#a3271d}

/* status + progress */
.badge{display:inline-block;padding:3px 10px;border-radius:99px;font-size:.82rem;font-weight:700;background:#e8eefc;color:var(--pd)}
.badge.new{background:#fff3e0;color:#b45f00}
.badge.completed,.badge.approved{background:#e6f6ec;color:#0b6b3a}
.badge.revision{background:#fdf0e7;color:#b34700}
.badge.cancelled{background:#f1f1f1;color:#666}
.bar{height:12px;background:#e6ecf7;border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--p),#3d8bff);border-radius:99px}
.kv{display:grid;grid-template-columns:150px 1fr;gap:6px 14px}
.kv dt{color:var(--mu)}
.kv dd{margin:0;font-weight:600}
.dash{display:grid;grid-template-columns:2fr 1fr;gap:18px;align-items:start}
@media(max-width:860px){.dash{grid-template-columns:1fr}}
.panel{background:#fff;border:1px solid var(--bd);border-radius:var(--r);padding:20px;margin-bottom:18px}
.msg{border-left:3px solid var(--bd);padding:6px 12px;margin:10px 0;background:var(--bg);border-radius:0 8px 8px 0}
.msg.admin{border-color:var(--p)}
.msg small{color:var(--mu);display:block}
.big{font-size:1.4rem;font-weight:800;letter-spacing:.5px;color:var(--p)}

/* faq */
details{background:#fff;border:1px solid var(--bd);border-radius:10px;padding:12px 16px;margin-bottom:10px}
summary{cursor:pointer;font-weight:700}
details p{margin:10px 0 0}

/* footer */
.ftr{background:var(--dk);color:#c5d0e6;padding:40px 0 0;margin-top:30px}
.ftr a{display:block;color:#c5d0e6;padding:3px 0}
.ftr b{display:block;color:#fff;margin-bottom:8px}
.ftr .logo{color:#fff}
.ftr-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px}
@media(max-width:700px){.ftr-in{grid-template-columns:1fr}}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:16px;padding-bottom:84px;font-size:.88rem;text-align:center}
.float{position:fixed;right:14px;bottom:14px;display:flex;flex-direction:column;gap:8px;z-index:60}
.float a{color:#fff;padding:10px 16px;border-radius:99px;font-weight:700;box-shadow:0 6px 16px rgba(0,0,0,.25)}
.float a:hover{text-decoration:none;filter:brightness(1.1)}
.float .wa{background:#25d366}
.float .ms{background:#0084ff}

/* admin */
.adm-nav{display:flex;flex-wrap:wrap;gap:6px;margin:16px 0}
.adm-nav a{padding:8px 14px;background:#fff;border:1px solid var(--bd);border-radius:8px;font-weight:600;color:var(--tx)}
.adm-nav a.on{background:var(--p);color:#fff;border-color:var(--p)}
.stat{background:#fff;border:1px solid var(--bd);border-radius:var(--r);padding:14px 16px}
.stat b{display:block;font-size:1.5rem;color:var(--dk)}
.inline{display:inline}
.tiny{font-size:.85rem}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* conversion helpers (all CSS, no extra requests) */
.trust{background:#fff;border-bottom:1px solid var(--bd)}
.trust .wrap{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 22px;padding:12px 16px;font-weight:600;font-size:.92rem}
.card{position:relative}
.card.rec{border:2px solid var(--cta);box-shadow:0 8px 24px rgba(255,122,0,.15)}
.rec-tag{position:absolute;top:-12px;right:14px;background:var(--cta);color:#fff;font-size:.78rem;font-weight:800;padding:3px 12px;border-radius:99px}
.hl{color:var(--cta)}
.micro{font-size:.84rem;color:var(--ok);font-weight:600;margin:8px 0 0}
.center{text-align:center}
.sticky-bar{display:none}
@media(max-width:700px){
 .sticky-bar{display:flex;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;padding:8px 10px;border-top:1px solid var(--bd);box-shadow:0 -4px 14px rgba(0,0,0,.08)}
 .sticky-bar .btn{padding:12px 10px;flex:1}
 .sticky-bar .wa-b{flex:0 0 auto;background:#25d366}
 .float{display:none}
}

/* floating chat widget */
.float{position:fixed;right:14px;bottom:14px;display:flex;flex-direction:column;align-items:flex-end;gap:8px;z-index:60}
.float .wa,.float .ms{display:flex;align-items:center;gap:8px;color:#fff;border-radius:99px;font-weight:700;box-shadow:0 6px 16px rgba(0,0,0,.25);padding:10px 16px}
.float .ic{font-size:1.25rem;line-height:1}
.wa-pop{position:relative;background:#fff;border:1px solid var(--bd);border-radius:14px;padding:14px 16px;width:min(300px,calc(100vw - 28px));box-shadow:0 10px 30px rgba(0,0,0,.2)}
.wa-pop p{margin:4px 0 10px;font-size:.95rem}
.wa-pop .x{position:absolute;top:4px;right:8px;background:none;border:0;font-size:1.4rem;cursor:pointer;color:var(--mu)}
.wa-go{background:#25d366;color:#fff}
@media(max-width:700px){
 .float{display:flex!important;bottom:74px}
 .float .lb{display:none}
 .float .wa,.float .ms{padding:12px 14px}
 .float .ic{font-size:1.5rem}
}
#pwa-btn[hidden]{display:none}
.ph{display:grid;place-items:center;aspect-ratio:16/10;border-radius:10px;margin-bottom:12px;color:#fff;font-weight:800;font-size:1.3rem;text-align:center;padding:10px;background:linear-gradient(135deg,var(--c1,#0b5fff),var(--c2,#0a3fb0))}
.tag-s{display:inline-block;background:#fff3e0;color:#b45f00;font-size:.75rem;font-weight:800;border-radius:99px;padding:2px 10px;margin-bottom:6px}