/* NN Telecom · dark premium theme: brand blue→violet (from the owner logo) + gold/amber accents for CTAs and highlights. */
:root{
  --bg:#05070f; --bg-2:#080c1a; --navy:#0b1226; --navy-2:#111a35;
  --line:rgba(110,140,255,.18); --line-2:rgba(255,255,255,.08);
  --text:#eef0f6; --muted:#a9b0c4; --dim:#7d859c;
  --gold:#f3c85a; --gold-2:#ffdf8a; --gold-3:#c8901f; --amber:#f59e0b;
  --teal:#1fb6ff; --violet:#5b3df5; --magenta:#7b61ff;
  --blue:#1fb6ff; --indigo:#3a5cff;
  --grad-brand:linear-gradient(120deg,#e9f8ff 0%,#7fd6ff 22%,#1fb6ff 42%,#3a5cff 66%,#5b3df5 84%,#9a85ff 100%);
  --grad-gold:linear-gradient(120deg,#fff4cf 0%,#f3c85a 28%,#c8901f 52%,#f7dc8a 72%,#e2a93a 100%);
  --grad-vivid:linear-gradient(120deg,#f3c85a,#f59e0b 22%,#1fb6ff 55%,#3a5cff 75%,#5b3df5);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --radius:20px; --radius-sm:14px;
  --shadow:0 20px 50px -20px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.04) inset;
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-bn:"Hind Siliguri","Noto Sans Bengali",system-ui,sans-serif;
  --font-en:"Manrope",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-display:"Playfair Display",Georgia,"Times New Roman",serif;
  --fs-xs:.8125rem; --fs-sm:.9375rem; --fs-md:1.0625rem; --fs-lg:clamp(1.125rem,1rem + .4vw,1.3rem);
  --fs-h3:clamp(1.2rem,1.05rem + .5vw,1.4rem); --fs-h2:clamp(1.75rem,1.3rem + 1.8vw,2.75rem);
  --fs-hero:clamp(2.6rem,1.6rem + 4.4vw,5.2rem);
  --space:clamp(4rem,3rem + 4vw,7rem);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-en);font-size:var(--fs-md);line-height:1.65;overflow-x:hidden;overflow-x:clip;-webkit-font-smoothing:antialiased}
html[lang="bn"] body{font-family:var(--font-bn);line-height:1.75}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(900px 600px at 85% -10%,rgba(243,200,90,.08),transparent 60%),radial-gradient(800px 600px at -10% 40%,rgba(91,61,245,.06),transparent 60%),radial-gradient(700px 500px at 110% 80%,rgba(31,182,255,.05),transparent 60%),var(--bg)}
img,svg{display:block;max-width:100%}
a{color:var(--gold-2);text-decoration:none}
a:hover{color:#fff}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:8px}
h1,h2,h3{margin:0;line-height:1.2;letter-spacing:-.01em}
h2{font-size:var(--fs-h2);font-family:var(--font-display);font-weight:700}
html[lang="bn"] h1,html[lang="bn"] h2,html[lang="bn"] h3{font-family:var(--font-bn);letter-spacing:0;line-height:1.35}
h3{font-size:var(--fs-h3);font-weight:700}
p{margin:0 0 1rem}
ul{margin:0;padding:0;list-style:none}
.svg-defs{position:absolute;width:0;height:0;overflow:hidden}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(1rem,.6rem + 2vw,2rem)}
.skip-link{position:absolute;left:1rem;top:-100px;z-index:200;background:var(--gold);color:#111;padding:.6rem 1rem;border-radius:10px;font-weight:700}
.skip-link:focus{top:1rem}
.noscript{margin:0;padding:.6rem 1rem;text-align:center;background:#1a1405;color:var(--gold-2);font-size:var(--fs-sm);border-bottom:1px solid var(--line)}
.gold-text{background:var(--grad-gold);background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;animation:goldShift 8s linear infinite}
@keyframes goldShift{to{background-position:200% center}}
.eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-size:var(--fs-xs);font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:.9rem}
html[lang="bn"] .eyebrow{letter-spacing:.04em;font-size:var(--fs-sm)}
.eyebrow::before{content:"";width:28px;height:2px;border-radius:2px;background:var(--grad-vivid)}
.muted{color:var(--muted)}
.glass{background:var(--glass);border:1px solid var(--line-2);border-radius:var(--radius);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}

/* ---------- Buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.55rem;min-height:50px;padding:.8rem 1.5rem;border-radius:999px;font-weight:700;font-size:var(--fs-md);border:1px solid transparent;cursor:pointer;overflow:hidden;isolation:isolate;transition:transform .35s var(--ease),box-shadow .35s var(--ease),background-color .3s;font-family:inherit}
.btn svg{width:20px;height:20px}
.btn-gold{color:#1a1204;background:var(--grad-gold);background-size:180% auto;box-shadow:0 10px 30px -10px rgba(243,200,90,.65),0 0 0 1px rgba(255,236,170,.5) inset}
.btn-gold:hover{color:#1a1204;transform:translateY(-2px);background-position:100% center;box-shadow:0 18px 40px -12px rgba(243,200,90,.85),0 0 0 1px rgba(255,236,170,.7) inset}
.btn-glass{color:var(--text);background:rgba(255,255,255,.05);border-color:rgba(243,200,90,.35);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.btn-glass:hover{color:#fff;transform:translateY(-2px);border-color:var(--gold);box-shadow:0 0 0 4px rgba(243,200,90,.08),0 14px 34px -14px rgba(31,182,255,.45)}
.shine::after{content:"";position:absolute;inset:-2px;z-index:-1;background:linear-gradient(115deg,transparent 35%,rgba(255,255,255,.55) 50%,transparent 65%);transform:translateX(-120%);transition:transform .9s var(--ease)}
.btn-gold.shine::after{z-index:1;mix-blend-mode:soft-light}
.shine:hover::after{transform:translateX(120%)}
.btn > *{position:relative;z-index:2}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;height:var(--header-h);background:rgba(5,7,15,.6);-webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);border-bottom:1px solid transparent;transition:background .3s,border-color .3s}
.site-header.scrolled{background:rgba(5,7,15,.85);border-bottom-color:var(--line)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:var(--grad-vivid);opacity:0;transition:opacity .4s}
.site-header.scrolled::after{opacity:.5}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:100%}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-logo{width:72px;height:auto;aspect-ratio:2/1;filter:drop-shadow(0 4px 14px rgba(31,182,255,.35));transition:transform .6s var(--ease),filter .6s var(--ease)}
.brand:hover .brand-logo{transform:scale(1.06);filter:drop-shadow(0 4px 18px rgba(91,61,245,.6))}
.brand picture{display:block;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-family:var(--font-en);font-weight:800;font-size:1.12rem;letter-spacing:.14em;background:linear-gradient(90deg,#fff,#bfe9ff 55%,#a99bff);-webkit-background-clip:text;background-clip:text;color:transparent}
html[lang="bn"] .brand-name{font-family:var(--font-bn);font-size:1.15rem}
.brand-sub{font-size:.72rem;color:var(--muted);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:.25rem}
.nav-links a{position:relative;color:var(--muted);font-weight:600;font-size:var(--fs-sm);padding:.55rem .85rem;border-radius:999px;transition:color .25s,background .25s}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--gold-2)}
.nav-links a.active::after{content:"";position:absolute;left:.85rem;right:.85rem;bottom:.25rem;height:2px;border-radius:2px;background:var(--grad-gold)}
.nav-links .nav-call{margin-left:.5rem;color:#1a1204;background:var(--grad-gold);box-shadow:0 8px 22px -10px rgba(243,200,90,.7)}
.nav-links .nav-call:hover{color:#1a1204;background:var(--grad-gold);transform:translateY(-1px)}
.nav-actions{display:flex;align-items:center;gap:.5rem}
.lang-toggle{position:relative;display:inline-grid;grid-template-columns:1fr 1fr;align-items:center;height:40px;padding:3px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);cursor:pointer;font:700 .85rem var(--font-en);color:var(--muted)}
.lang-opt{position:relative;z-index:2;padding:0 .8rem;line-height:34px;transition:color .3s;font-family:var(--font-en)}
.lang-opt[data-lang-opt="bn"]{font-family:var(--font-bn)}
.lang-opt.active{color:#1a1204}
.lang-thumb{position:absolute;z-index:1;top:3px;bottom:3px;left:3px;width:calc(50% - 3px);border-radius:999px;background:var(--grad-gold);transition:transform .45s var(--ease)}
html[lang="bn"] .lang-thumb{transform:translateX(100%)}
.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--gold);transition:transform .35s var(--ease),opacity .25s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Ad slots (empty, reserved space; no ad scripts loaded) ---------- */
.ad-band{padding:.9rem 0}
.ad-slot{position:relative;display:flex;align-items:center;justify-content:center;width:100%;max-width:100%;margin:0 auto;overflow:hidden;contain:layout paint;border-radius:var(--radius-sm);border:1px dashed rgba(243,200,90,.18);background:repeating-linear-gradient(135deg,rgba(255,255,255,.015) 0 12px,rgba(255,255,255,.03) 12px 24px)}
.ad-slot > *{max-width:100%}
.ad-slot ins,.ad-slot iframe{max-width:100%!important}
.ad-label{position:absolute;top:6px;left:10px;font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);font-family:var(--font-en)}
html[lang="bn"] .ad-label{letter-spacing:.04em;font-family:var(--font-bn);font-size:.72rem}
.ad-header{max-width:728px;min-height:90px}
.ad-incontent{min-height:250px;max-width:970px;margin:var(--space) auto 0}
.ad-footer{max-width:728px;min-height:90px;margin:var(--space) auto 0}
.ad-sidebar{width:300px;min-height:600px}
@media (max-width:760px){.ad-header,.ad-footer{max-width:336px;min-height:100px}.ad-incontent{min-height:280px;max-width:336px}}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:min(880px,calc(100svh - var(--header-h)));display:flex;align-items:center;padding:clamp(3rem,2rem + 4vw,6rem) 0 clamp(4rem,3rem + 4vw,7rem);overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-1;overflow:hidden}
.mesh{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;will-change:transform}
.mesh-1{width:620px;height:620px;left:-160px;top:-180px;background:radial-gradient(circle,rgba(31,182,255,.42),transparent 65%);animation:float1 18s ease-in-out infinite}
.mesh-2{width:520px;height:520px;right:-140px;top:10%;background:radial-gradient(circle,rgba(91,61,245,.45),transparent 65%);animation:float2 22s ease-in-out infinite}
.mesh-3{width:460px;height:460px;left:35%;bottom:-220px;background:radial-gradient(circle,rgba(31,182,255,.32),transparent 65%);animation:float3 26s ease-in-out infinite}
@keyframes float1{50%{transform:translate(80px,60px) scale(1.1)}}
@keyframes float2{50%{transform:translate(-70px,50px) scale(.92)}}
@keyframes float3{50%{transform:translate(60px,-70px) scale(1.08)}}
#hero-canvas{position:absolute;inset:0;width:100%;height:100%}
.hero-grid-lines{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:64px 64px;-webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000,transparent 75%);mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000,transparent 75%)}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(2rem,1rem + 4vw,5rem);align-items:center}
.pill{display:inline-flex;align-items:center;gap:.6rem;padding:.45rem 1rem .45rem .75rem;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:var(--fs-sm);font-weight:600;color:var(--gold-2);margin-bottom:1.4rem}
.pill-dot{width:9px;height:9px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 0 rgba(31,182,255,.6);animation:pulse 2.2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(31,182,255,0)}100%{box-shadow:0 0 0 0 rgba(31,182,255,0)}}
.hero-title{margin:0 0 .6rem}
.brand-big{display:inline-block;font-family:var(--font-display);font-weight:800;font-size:var(--fs-hero);line-height:1.02;letter-spacing:-.02em;background:linear-gradient(120deg,#fff 0%,#bfeaff 22%,#1fb6ff 45%,#3a5cff 65%,#7b61ff 82%,#e9f8ff 100%);background-size:220% auto;-webkit-background-clip:text;background-clip:text;color:transparent;animation:goldShift 9s linear infinite;filter:drop-shadow(0 8px 30px rgba(31,182,255,.22))}
html[lang="bn"] .brand-big{font-family:var(--font-bn);font-weight:700;line-height:1.2;letter-spacing:0}
.tagline{font-size:clamp(1.15rem,1rem + .9vw,1.6rem);font-weight:700;line-height:1.4;margin-bottom:1.1rem;color:#fff}
.tagline span{display:block}
.lead{font-size:var(--fs-lg);color:var(--muted);max-width:58ch;margin-bottom:1.8rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:.8rem}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:1rem 1.4rem;margin-top:1.6rem}
.hero-phone{font-family:var(--font-en);font-weight:800;font-size:1.25rem;letter-spacing:.02em;color:#fff}
html[lang="bn"] .hero-phone{font-family:var(--font-bn)}
.offer-chip{display:inline-flex;align-items:center;gap:.5rem;padding:.4rem .9rem .4rem .45rem;border-radius:999px;background:linear-gradient(90deg,rgba(123,97,255,.16),rgba(31,182,255,.12));border:1px solid rgba(123,97,255,.35);color:var(--text);font-size:var(--fs-sm);font-weight:600}
.offer-chip b{padding:.15rem .6rem;border-radius:999px;background:var(--grad-gold);color:#1a1204}
.offer-chip:hover{color:#fff;border-color:var(--magenta)}

.hero-visual{position:relative;display:grid;place-items:center;aspect-ratio:1;max-width:460px;width:100%;margin:0 auto;perspective:1100px}
.orbit{position:absolute;inset:0;border-radius:50%;border:1px solid rgba(31,182,255,.2);animation:spin 30s linear infinite}
.orbit-2{inset:12%;border-color:rgba(91,61,245,.22);animation-duration:22s;animation-direction:reverse}
.orbit span{position:absolute;top:-6px;left:50%;width:12px;height:12px;margin-left:-6px;border-radius:50%;background:var(--gold);box-shadow:0 0 18px var(--gold)}
.orbit-2 span{background:var(--teal);box-shadow:0 0 18px var(--teal)}
@keyframes spin{to{transform:rotate(360deg)}}
.glass-card{position:relative;width:80%;min-height:250px;padding:1.3rem 1.4rem;border-radius:24px;background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.03) 45%,rgba(243,200,90,.08));border:1px solid rgba(255,255,255,.14);box-shadow:0 40px 80px -30px rgba(0,0,0,.9),0 0 60px -20px rgba(243,200,90,.45),inset 0 1px 0 rgba(255,255,255,.2);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);transform-style:preserve-3d;transform:rotateX(var(--rx,8deg)) rotateY(var(--ry,-14deg));transition:transform .5s var(--ease);overflow:hidden;display:flex;flex-direction:column}
.glass-card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:var(--grad-vivid);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.55;pointer-events:none}
.gc-top{display:flex;justify-content:space-between;align-items:center}
.gc-logo{width:84px;height:auto;aspect-ratio:2/1;filter:drop-shadow(0 4px 12px rgba(31,182,255,.4))}
.gc-signal{width:26px;height:26px}
.gc-chip{width:42px;height:30px;border-radius:7px;margin:.6rem 0 .4rem;background:linear-gradient(135deg,#fff1c1,#c8901f);box-shadow:inset 0 0 0 1px rgba(0,0,0,.25)}
.gc-name{margin:0;font-family:var(--font-display);font-weight:700;letter-spacing:.2em;font-size:1rem;color:var(--gold-2)}
html[lang="bn"] .gc-name{font-family:var(--font-bn);letter-spacing:.04em}
.gc-247{margin:0 0 .4rem;font-size:.7rem;font-weight:800;letter-spacing:.2em;color:var(--teal)}
.gc-list{font-size:.82rem;color:var(--text);display:grid;gap:.2rem}
.gc-list li{display:flex;align-items:center;gap:.5rem}
.gc-list i{width:6px;height:6px;border-radius:50%;background:var(--gold)}
.gc-foot{margin-top:auto;display:flex;gap:.4rem;flex-wrap:wrap}
.gc-foot span{font-size:.7rem;font-weight:700;padding:.15rem .55rem;border-radius:999px;border:1px solid var(--line);color:var(--gold-2)}
.gc-shine{position:absolute;inset:0;background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.22) 48%,transparent 62%);transform:translateX(-100%);animation:sweep 6s var(--ease) infinite 1.5s;pointer-events:none}
@keyframes sweep{0%{transform:translateX(-100%)}35%,100%{transform:translateX(100%)}}
.scroll-cue{position:absolute;left:50%;bottom:1.4rem;width:26px;height:42px;margin-left:-13px;border-radius:14px;border:2px solid rgba(243,200,90,.4)}
.scroll-cue span{position:absolute;left:50%;top:8px;width:4px;height:8px;margin-left:-2px;border-radius:2px;background:var(--gold);animation:cue 1.8s infinite}
@keyframes cue{60%{transform:translateY(12px);opacity:0}100%{opacity:0}}

/* ---------- Marquee ---------- */
.marquee{overflow:hidden;border-block:1px solid var(--line);background:linear-gradient(90deg,rgba(243,200,90,.06),rgba(91,61,245,.06),rgba(31,182,255,.06));-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee-track{display:flex;align-items:center;gap:1.6rem;width:max-content;padding:1rem 0;animation:marquee 40s linear infinite;font-weight:700;color:var(--muted);white-space:nowrap}
.marquee-track b{color:var(--gold);font-weight:400}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- Stats ---------- */
.stats{padding:clamp(2.5rem,2rem + 2vw,4rem) 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.stat{position:relative;padding:1.5rem 1.25rem;border-radius:var(--radius);background:var(--glass);border:1px solid var(--line-2);text-align:center;overflow:hidden}
.stat::after{content:"";position:absolute;left:20%;right:20%;bottom:0;height:2px;background:var(--grad-vivid);opacity:.7}
.stat-num{margin:0;font-family:var(--font-display);font-size:clamp(2.2rem,1.8rem + 1.6vw,3.2rem);font-weight:800;line-height:1.1;background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;color:transparent}
html[lang="bn"] .stat-num{font-family:var(--font-bn);font-weight:700}
.stat-label{margin:.35rem 0 0;color:var(--muted);font-size:var(--fs-sm);font-weight:600}

/* ---------- Offer ---------- */
.offer{padding:0 0 clamp(2rem,1.5rem + 2vw,3rem)}
.offer-box{position:relative;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:clamp(1.2rem,1rem + 2vw,2.5rem);padding:clamp(1.5rem,1rem + 2vw,2.5rem);border-radius:28px;overflow:hidden;isolation:isolate;background:linear-gradient(120deg,rgba(243,200,90,.14),rgba(11,18,38,.9) 40%,rgba(91,61,245,.16) 75%,rgba(31,182,255,.12));border:1px solid rgba(243,200,90,.35);box-shadow:0 30px 70px -30px rgba(243,200,90,.35)}
.offer-box::before{content:"";position:absolute;inset:-50%;z-index:-1;background:conic-gradient(from 0deg,transparent,rgba(243,200,90,.18),transparent 30%,rgba(123,97,255,.14),transparent 60%,rgba(31,182,255,.12),transparent);animation:spin 18s linear infinite}
.offer-badge{display:grid;place-items:center;width:clamp(96px,80px + 4vw,130px);aspect-ratio:1;border-radius:50%;background:var(--grad-gold);color:#1a1204;box-shadow:0 0 0 6px rgba(243,200,90,.15),0 0 50px rgba(243,200,90,.5);text-align:center;line-height:1}
.offer-badge span{font-family:var(--font-display);font-weight:800;font-size:clamp(2rem,1.6rem + 1.5vw,2.8rem)}
html[lang="bn"] .offer-badge span{font-family:var(--font-bn)}
.offer-badge small{display:block;font-weight:800;font-size:.68rem;letter-spacing:.12em;margin-top:-.6rem}
.offer-copy h2{font-size:clamp(1.35rem,1.1rem + 1.2vw,2.1rem);margin-bottom:.5rem}
.offer-terms{margin:0;color:var(--muted);font-size:var(--fs-sm)}
.offer-terms a{text-decoration:underline;text-underline-offset:3px}

/* ---------- Trust ---------- */
.trust{padding:0 0 clamp(1rem,.5rem + 2vw,2rem)}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.trust-item{display:flex;gap:.9rem;align-items:flex-start;padding:1.1rem 1.2rem;border-radius:var(--radius-sm);border:1px solid var(--line);background:rgba(8,12,26,.6)}
.trust-item strong{display:block;font-size:var(--fs-sm);color:#fff}
.trust-item span{display:block;font-size:var(--fs-xs);color:var(--muted);line-height:1.5}
.t-ico{flex:none;display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:rgba(243,200,90,.08);border:1px solid var(--line)}
.t-ico svg{width:22px;height:22px}

/* ---------- Layout with sidebar ad ---------- */
.layout{display:block}
.layout .container{padding:0;max-width:none}
.layout.container{padding:0 clamp(1rem,.6rem + 2vw,2rem)}
.layout-side{display:none}
@media (min-width:1280px){
  .layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:3rem;max-width:1240px}
  .layout-side{display:block;padding-top:var(--space)}
  .side-sticky{position:sticky;top:calc(var(--header-h) + 1.5rem)}
}

/* ---------- Sections ---------- */
.section{padding-top:var(--space)}
.section-head{max-width:760px;margin-bottom:clamp(2rem,1.5rem + 2vw,3.2rem)}
.section-head h2{margin-bottom:.8rem}
.section-sub{color:var(--muted);font-size:var(--fs-lg)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.card{position:relative;padding:2rem 1.6rem 1.7rem;overflow:hidden;transition:transform .5s var(--ease),border-color .4s,box-shadow .5s var(--ease);transform:perspective(900px) rotateX(var(--rx,0)) rotateY(var(--ry,0))}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(160deg,rgba(243,200,90,.6),transparent 40%,transparent 60%,rgba(91,61,245,.5));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.5;transition:opacity .4s;pointer-events:none}
.card::after{content:"";position:absolute;width:260px;height:260px;left:var(--mx,50%);top:var(--my,0%);transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(243,200,90,.18),transparent 65%);opacity:0;transition:opacity .4s;pointer-events:none}
.card:hover{border-color:rgba(243,200,90,.35);box-shadow:0 30px 60px -25px rgba(0,0,0,.85),0 0 50px -20px rgba(243,200,90,.45)}
.card:hover::before{opacity:1}
.card:hover::after{opacity:1}
.card.featured{background:linear-gradient(160deg,rgba(243,200,90,.1),rgba(255,255,255,.02))}
.card-num{position:absolute;top:1.2rem;right:1.4rem;font-family:var(--font-display);font-size:2.6rem;font-weight:800;color:rgba(243,200,90,.12);line-height:1}
.card-ico{display:grid;place-items:center;width:58px;height:58px;border-radius:16px;margin-bottom:1.3rem;background:linear-gradient(145deg,rgba(243,200,90,.18),rgba(243,200,90,.04));border:1px solid var(--line);box-shadow:0 10px 30px -10px rgba(243,200,90,.45);transition:transform .5s var(--ease)}
.card:hover .card-ico{transform:translateY(-4px) rotate(-6deg)}
.card-ico svg{width:30px;height:30px}
.card h3{margin-bottom:.6rem}
.card p{color:var(--muted)}
.card-list{display:grid;gap:.55rem;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--line-2)}
.card-list li{position:relative;padding-left:1.6rem;font-size:var(--fs-sm)}
.card-list li::before{content:"";position:absolute;left:0;top:.55em;width:14px;height:8px;border-left:2px solid var(--gold);border-bottom:2px solid var(--gold);transform:rotate(-45deg) translateY(-3px)}
.shine-card .shine-sweep,.shine-card{isolation:isolate}
.note{margin-top:1.6rem;font-size:var(--fs-xs);color:var(--dim)}

.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,1rem + 3vw,4rem);align-items:start}
.why-copy p{color:var(--muted)}
.why-copy h2{margin-bottom:1rem}
.proprietor{color:var(--text)!important}
.proprietor strong{color:var(--gold-2)}
.safety-banner{display:flex;gap:.9rem;align-items:center;margin-top:1.4rem;padding:1rem 1.2rem;border-radius:var(--radius-sm);border:1px solid rgba(31,182,255,.35);background:linear-gradient(90deg,rgba(31,182,255,.1),transparent)}
.safety-banner svg{flex:none;width:30px;height:30px}
.safety-banner p{margin:0;color:var(--text)!important;font-weight:600;font-size:var(--fs-sm)}
.features{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.feature{padding:1.4rem;transition:transform .4s var(--ease),border-color .3s}
.feature:hover{transform:translateY(-4px);border-color:rgba(243,200,90,.35)}
.feature strong{display:block;margin:.8rem 0 .3rem;font-size:var(--fs-md)}
.feature > span:last-child{display:block;color:var(--muted);font-size:var(--fs-sm);line-height:1.55}
.f-ico{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:rgba(243,200,90,.08);border:1px solid var(--line)}
.f-ico svg{width:24px;height:24px}

.coverage-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(2rem,1rem + 3vw,4rem);align-items:center}
.coverage-copy p{color:var(--muted)}
.coverage-copy h2{margin-bottom:1rem}
.cov-list{display:grid;gap:.8rem;margin-top:1.4rem}
.cov-list li{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:.3rem 1rem;padding:1rem 1.2rem;border-radius:var(--radius-sm)}
.cov-list strong{color:var(--gold-2);font-size:var(--fs-md)}
.cov-list span{color:var(--muted);font-size:var(--fs-sm)}
.radar{position:relative;overflow:hidden;aspect-ratio:1;max-width:420px;width:100%;margin:0 auto;border-radius:50%;background:radial-gradient(circle,rgba(243,200,90,.08),transparent 70%)}
.radar-ring{position:absolute;border-radius:50%;border:1px solid rgba(31,182,255,.24)}
.r1{inset:0}.r2{inset:17%}.r3{inset:34%}
.radar-sweep{position:absolute;inset:0;border-radius:50%;background:conic-gradient(from 0deg,rgba(31,182,255,.38),rgba(91,61,245,.12) 14%,transparent 25%);animation:spin 6s linear infinite;-webkit-mask:radial-gradient(circle,#000 69%,transparent 70%);mask:radial-gradient(circle,#000 69%,transparent 70%)}
.radar-core{position:absolute;inset:30%;display:grid;place-items:center}
.radar-core img{width:100%;height:auto;filter:drop-shadow(0 0 24px rgba(31,182,255,.55))}
.blip{position:absolute;width:10px;height:10px;border-radius:50%;background:var(--teal);box-shadow:0 0 14px var(--teal);animation:blink 3s infinite}
.b1{top:18%;left:30%}.b2{top:30%;right:16%;background:var(--gold);box-shadow:0 0 14px var(--gold);animation-delay:.6s}.b3{bottom:22%;left:18%;background:var(--magenta);box-shadow:0 0 14px var(--magenta);animation-delay:1.2s}.b4{bottom:16%;right:28%;animation-delay:1.8s}.b5{top:55%;left:8%;background:var(--violet);box-shadow:0 0 14px var(--violet);animation-delay:2.4s}
@keyframes blink{50%{opacity:.2;transform:scale(.6)}}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;align-items:stretch}
.contact-cards{display:grid;gap:.9rem;align-content:start}
.c-card{position:relative;display:flex;gap:1rem;align-items:center;padding:1.05rem 1.2rem;color:var(--text);overflow:hidden;transition:transform .4s var(--ease),border-color .3s,box-shadow .4s}
a.c-card:hover{color:var(--text);transform:translateX(4px);border-color:rgba(243,200,90,.4);box-shadow:0 20px 40px -20px rgba(243,200,90,.4)}
.c-ico{flex:none;display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:rgba(243,200,90,.08);border:1px solid var(--line)}
.c-ico svg{width:24px;height:24px}
.c-body{display:flex;flex-direction:column;min-width:0}
.c-body strong{font-size:var(--fs-xs);letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}
html[lang="bn"] .c-body strong{letter-spacing:.02em;font-size:var(--fs-sm)}
.c-val{font-weight:700;font-size:var(--fs-md);overflow-wrap:anywhere}
.c-body small{color:var(--dim);font-size:var(--fs-xs)}
.map-wrap{position:relative;min-height:380px;overflow:hidden;padding:0}
.map-fallback{position:absolute;inset:0;display:grid;place-items:center;padding:2rem;text-align:center;color:var(--gold-2);font-weight:600;background:radial-gradient(circle at 50% 40%,rgba(243,200,90,.08),transparent 70%)}
.map-wrap iframe{position:absolute;inset:0;z-index:1;display:block;width:100%;height:100%;border:0;filter:grayscale(.3) contrast(1.05)}
.callback{margin-top:1.25rem;padding:clamp(1.3rem,1rem + 1.5vw,2rem)}
.cb-head h3{margin-bottom:.4rem}
.cb-head p{color:var(--muted);font-size:var(--fs-sm)}
.cb-fields{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem;margin:1rem 0 .6rem}
.field label{display:block;font-weight:600;font-size:var(--fs-sm);margin-bottom:.35rem}
.field input,.field select{width:100%;min-height:48px;padding:.7rem .9rem;border-radius:12px;border:1px solid rgba(255,255,255,.14);background:rgba(5,7,15,.6);color:var(--text);font:inherit;font-size:var(--fs-md);transition:border-color .25s,box-shadow .25s}
.field input::placeholder{color:#6f778d}
.field input:focus,.field select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 4px rgba(243,200,90,.15)}
.field.invalid input{border-color:#f87171;box-shadow:0 0 0 4px rgba(248,113,113,.12)}
.error{margin:.35rem 0 0;color:#fca5a5;font-size:var(--fs-xs)}
.safety{font-size:var(--fs-xs);color:var(--teal);margin-bottom:1rem}
.form-status{margin:.8rem 0 0;font-size:var(--fs-sm);color:var(--teal)}
.form-status.err{color:#fca5a5}

.cta-band{padding-top:var(--space)}
.cta-box{position:relative;padding:clamp(2rem,1.5rem + 3vw,3.5rem);border-radius:28px;text-align:center;overflow:hidden;background:radial-gradient(600px 300px at 50% 0%,rgba(243,200,90,.18),transparent 70%),var(--navy);border:1px solid rgba(243,200,90,.25)}
.cta-box h2{font-size:clamp(1.5rem,1.2rem + 1.4vw,2.3rem);margin-bottom:1.5rem}
.cta-box .hero-cta{justify-content:center}

/* ---------- Footer ---------- */
.site-footer{margin-top:var(--space);padding:clamp(3rem,2rem + 2vw,4rem) 0 1.5rem;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(11,18,38,.6),rgba(5,7,15,1))}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem}
.footer-brand .brand{margin-bottom:1rem}
.footer-col{display:flex;flex-direction:column;gap:.45rem;font-size:var(--fs-sm)}
.footer-col p{margin:0}
.footer-col a{color:var(--muted);width:fit-content;overflow-wrap:anywhere}
.footer-col a:hover{color:var(--gold-2)}
.footer-h{font-weight:700;color:#fff!important;margin-bottom:.3rem!important}
.footer-brand p{font-size:var(--fs-sm);margin:0 0 .4rem}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.6rem 1.5rem;margin-top:2.2rem;padding-top:1.3rem;border-top:1px solid var(--line-2);font-size:var(--fs-xs);color:var(--dim)}
.footer-bottom p{margin:0;display:flex;align-items:center;gap:.5rem}
.secure-dot{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal)}

/* ---------- Floating call + install banner ---------- */
.fab-call{position:fixed;right:1rem;bottom:1rem;z-index:90;display:none;place-items:center;width:58px;height:58px;border-radius:50%;background:var(--grad-gold);color:#1a1204;box-shadow:0 14px 34px -10px rgba(243,200,90,.8);animation:pulseGold 2.6s infinite}
.fab-call svg{width:26px;height:26px}
@keyframes pulseGold{0%{box-shadow:0 0 0 0 rgba(243,200,90,.5),0 14px 34px -10px rgba(243,200,90,.8)}70%{box-shadow:0 0 0 16px rgba(243,200,90,0),0 14px 34px -10px rgba(243,200,90,.8)}}
.install-banner{position:fixed;left:50%;bottom:1rem;z-index:110;display:flex;align-items:center;gap:.9rem;width:min(560px,calc(100% - 2rem));padding:.8rem .9rem;transform:translateX(-50%);background:rgba(11,18,38,.92);border-color:rgba(243,200,90,.3);animation:rise .5s var(--ease)}
.install-banner[hidden]{display:none}
.install-banner img{flex:none;border-radius:12px}
.ib-copy{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.35}
.ib-copy strong{font-size:var(--fs-sm)}
.ib-copy span{font-size:var(--fs-xs);color:var(--muted)}
.ib-install{min-height:40px;padding:.5rem 1rem;font-size:var(--fs-sm)}
.ib-close{flex:none;width:36px;height:36px;border-radius:50%;border:1px solid var(--line-2);background:transparent;color:var(--muted);cursor:pointer;font-size:1rem}
.ib-close:hover{color:#fff}
@keyframes rise{from{opacity:0;transform:translate(-50%,20px)}}

/* ---------- Reveal (only when JS is running) ---------- */
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0ms)}
.js .reveal.in{opacity:1;transform:none}
.js .hero-visual.reveal{transform:translateY(26px) scale(.96)}
.js .hero-visual.reveal.in{transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav-links a{padding:.5rem .6rem}
}
@media (max-width:980px){
  .menu-toggle{display:inline-flex}
  .nav-links{position:fixed;top:var(--header-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:.2rem;padding:1rem;background:rgba(5,7,15,.97);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);transform:translateY(-12px);opacity:0;visibility:hidden;transition:transform .35s var(--ease),opacity .3s,visibility .3s;max-height:calc(100svh - var(--header-h));overflow:auto}
  .nav-links.open{transform:none;opacity:1;visibility:visible}
  .nav-links a{padding:.9rem 1rem;font-size:var(--fs-md);border-radius:12px}
  .nav-links a.active::after{display:none}
  .nav-links .nav-call{margin:.5rem 0 0;text-align:center}
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{max-width:380px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr;max-width:620px}
  .why-grid,.coverage-grid,.contact-grid{grid-template-columns:1fr}
  .radar{max-width:320px}
  .offer-box{grid-template-columns:auto 1fr}
  .offer-cta{grid-column:1/-1;justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .fab-call{display:grid}
}
@media (max-width:640px){
  .brand-sub{display:none}
  .features{grid-template-columns:1fr}
  .cb-fields{grid-template-columns:1fr}
  .offer-box{grid-template-columns:1fr;text-align:left}
  .hero-cta .btn{flex:1 1 140px;white-space:nowrap;padding-inline:1.1rem}
  .footer-grid{grid-template-columns:1fr}
  .scroll-cue{display:none}
  .install-banner{bottom:5.2rem}
  .map-wrap{min-height:300px}
}
@media (max-width:380px){
  .brand-name{font-size:1.02rem}
  .brand-logo{width:60px}
  .lang-opt{padding:0 .6rem}
  .stats-grid{gap:.7rem}
  .stat{padding:1.2rem .8rem}
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .js .reveal{opacity:1;transform:none}
  .marquee-track{animation:none}
  #hero-canvas{display:none}
}

/* Keep hover transforms working after the reveal transition finishes */
.js .card.reveal.in{transform:perspective(900px) rotateX(var(--rx,0)) rotateY(var(--ry,0))}
.js .feature.reveal.in:hover{transform:translateY(-4px)}
.js a.c-card.reveal.in:hover{transform:translateX(4px)}

/* ---------- 404 / offline pages ---------- */
.simple-page{font-family:var(--font-bn)}
.simple-wrap{min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:2rem 1.2rem;max-width:640px;margin:0 auto}
.simple-logo{width:180px;height:auto;aspect-ratio:2/1;margin:0 auto 1rem;filter:drop-shadow(0 0 30px rgba(31,182,255,.45))}
.simple-code{font-family:var(--font-display);font-size:clamp(3.5rem,3rem + 4vw,6rem);font-weight:800;line-height:1;margin:0 0 .5rem}
.simple-wrap h1{font-size:var(--fs-h2);margin-bottom:.2rem}
.simple-wrap p{color:var(--muted)}
.simple-en{font-family:var(--font-en);color:var(--dim)!important;font-size:var(--fs-sm)}
.simple-cta{justify-content:center;margin-top:1rem}
.c-card a[href^="mailto:"]{font-size:.92em;overflow-wrap:anywhere}
html[lang="bn"] .brand-name{letter-spacing:.01em;white-space:nowrap;background:linear-gradient(90deg,#fff,#bfe9ff 55%,#a99bff);-webkit-background-clip:text;background-clip:text}
.btn{white-space:nowrap}