:root{
 --ink:#070905;--green:#003f2d;--green2:#006844;--gold:#ffd83d;--gold2:#c98900;
 --red:#e31818;--cream:#fff7d6;--white:#fff;--muted:#ddcf9c;--panel:#071b13;
 --line:rgba(255,216,61,.28);--shadow:0 18px 50px rgba(0,0,0,.38);--max:1180px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:
radial-gradient(circle at 50% -10%,rgba(255,216,61,.10),transparent 30%),
linear-gradient(180deg,#020603,#06130d 42%,#020603);color:#fff;font-family:system-ui,-apple-system,"Noto Sans Bengali","Segoe UI",sans-serif;line-height:1.68}
img{max-width:100%;height:auto}a{color:inherit}.wrap{width:min(var(--max),calc(100% - 32px));margin:auto}
.site-header{position:sticky;top:0;z-index:40;background:rgba(2,7,4,.94);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{min-height:74px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:900}.brand img{width:48px;height:48px;border-radius:12px}.brand span{font-size:1.35rem;color:var(--gold)}
.nav{display:flex;gap:18px;margin-left:auto;align-items:center}.nav a{text-decoration:none;font-weight:750;color:#f7f1da}.nav a:hover{color:var(--gold)}
.menu-btn{display:none;margin-left:auto;background:#102318;color:#fff;border:1px solid var(--line);padding:9px 12px;border-radius:11px}
.cta{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 19px;min-height:48px;border-radius:13px;text-decoration:none;font-weight:900;color:#161000;background:linear-gradient(180deg,#fff36b,#ffbe00);border:1px solid #ffe878;box-shadow:0 8px 30px rgba(255,193,0,.18),inset 0 1px 0 #fff}
.cta.red{background:linear-gradient(180deg,#ff4a25,#d60f0f);color:#fff;border-color:#ff9b65}.cta.ghost{background:transparent;color:#fff;border-color:rgba(255,216,61,.58);box-shadow:none}
.hero{padding:72px 0 58px;overflow:hidden;position:relative}.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 72% 40%,rgba(204,0,0,.20),transparent 27%),radial-gradient(circle at 70% 46%,rgba(255,216,61,.10),transparent 40%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center}.eyebrow{display:inline-flex;padding:7px 12px;border:1px solid rgba(255,216,61,.42);background:rgba(255,216,61,.08);color:var(--gold);border-radius:999px;font-weight:800}
h1{font-size:clamp(2.55rem,6vw,5rem);line-height:1.04;margin:.22em 0 .2em;letter-spacing:-.035em}h2{font-size:clamp(1.75rem,3.6vw,2.65rem);line-height:1.16;margin:0 0 16px}h3{margin:.2em 0 .4em}.lead{font-size:1.12rem;color:#eee5c8;max-width:780px}.muted{color:#c9bc91}.kicker{color:var(--gold);font-weight:900;letter-spacing:.02em}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:25px 0}
.hero-art{display:grid;grid-template-columns:1fr .72fr;gap:16px;align-items:center}.logo-card{background:linear-gradient(145deg,#0f281c,#020704);border:2px solid rgba(255,216,61,.55);padding:18px;border-radius:28px;box-shadow:var(--shadow)}.logo-card img{border-radius:22px;display:block}.screen-stack{display:grid;gap:13px}.screen-stack img,.screen-card img{display:block;border-radius:22px;border:2px solid rgba(255,216,61,.52);box-shadow:var(--shadow);background:#000}
.fact-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:28px}.fact-pill{padding:12px 13px;border:1px solid var(--line);background:rgba(0,72,47,.45);border-radius:14px}.fact-pill strong{display:block;color:var(--gold);font-size:.9rem}.fact-pill span{font-weight:800}
.section{padding:66px 0}.section.alt{background:linear-gradient(180deg,rgba(0,65,44,.16),rgba(0,0,0,.08));border-block:1px solid rgba(255,216,61,.10)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{background:linear-gradient(180deg,#0a291d,#06130d);border:1px solid var(--line);border-radius:21px;padding:24px;box-shadow:var(--shadow)}.card p{color:#dcd2af}
.badge{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(180deg,#ffdc31,#be7e00);color:#161000;font-weight:900;margin-bottom:14px}
.steps{counter-reset:s;display:grid;gap:13px;list-style:none;padding:0}.steps li{counter-increment:s;display:grid;grid-template-columns:42px 1fr;gap:14px;padding:16px;border:1px solid var(--line);background:#071a12;border-radius:15px}.steps li:before{content:counter(s);width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(180deg,#fff064,#ffb800);color:#161000;font-weight:950}
.fact-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--line);border-radius:18px;overflow:hidden}.fact-list div{padding:15px 17px;background:#071a12;border-bottom:1px solid var(--line)}.fact-list div:nth-child(odd){border-right:1px solid var(--line)}.fact-list dt{font-size:.85rem;color:#c7b985}.fact-list dd{margin:4px 0 0;font-weight:850;overflow-wrap:anywhere}
.hash{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.86rem;color:#ffe98e}
.callout{border:1px solid rgba(255,216,61,.42);background:linear-gradient(135deg,rgba(255,216,61,.10),rgba(0,92,58,.16));border-radius:16px;padding:18px 20px}.callout.danger{border-color:rgba(255,61,61,.45);background:rgba(160,0,0,.12)}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}.screen-card{background:#06130d;border:1px solid var(--line);border-radius:24px;padding:14px;text-align:center}.screen-card figcaption{padding:12px 6px 3px;color:#d8cda7}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:17px}table{width:100%;min-width:690px;border-collapse:collapse;background:#071a12}th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}th{background:#0d2c20;color:#ffe061}
details{background:#071a12;border:1px solid var(--line);border-radius:15px;padding:16px 18px}details+details{margin-top:10px}summary{cursor:pointer;font-weight:850;color:#fff3bd}
.breadcrumbs{padding-top:24px;color:#c7bb94;font-size:.9rem}.breadcrumbs a{color:#ffdd4b}.site-footer{padding:44px 0 96px;border-top:1px solid var(--line);background:#010402}.footer-grid{display:grid;grid-template-columns:1.2fr 2fr;gap:28px}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 18px}.footer-links a{text-decoration:none;color:#eadfb9}.mobile-cta{display:none}
.narrow{max-width:840px}.visual-row{display:grid;grid-template-columns:360px 1fr;gap:32px;align-items:center}.visual-row.reverse{grid-template-columns:1fr 360px}.permissions{columns:2;column-gap:28px}.permissions li{break-inside:avoid;margin-bottom:7px}
.download-box{background:linear-gradient(145deg,#062719,#111305);border:1px solid #e0b72a;border-radius:24px;padding:28px;box-shadow:var(--shadow)}.download-box .cta{width:100%;margin-top:12px}
@media(max-width:900px){.nav{display:none;position:absolute;top:74px;left:16px;right:16px;flex-direction:column;align-items:flex-start;padding:18px;background:#04110b;border:1px solid var(--line);border-radius:16px}.nav.open{display:flex}.menu-btn{display:block}.header-cta{display:none}.hero-grid,.grid-3,.grid-2,.footer-grid,.visual-row,.visual-row.reverse{grid-template-columns:1fr}.fact-strip{grid-template-columns:repeat(2,1fr)}.hero-art{max-width:620px;margin:auto}.fact-list{grid-template-columns:1fr}.fact-list div:nth-child(odd){border-right:0}.gallery{grid-template-columns:repeat(3,1fr)}.permissions{columns:1}.mobile-cta{display:block;position:fixed;left:10px;right:10px;bottom:10px;z-index:50}.mobile-cta .cta{width:100%;box-shadow:0 10px 35px rgba(0,0,0,.5)}}
@media(max-width:560px){.wrap{width:min(var(--max),calc(100% - 20px))}.hero{padding-top:38px}.hero-art{grid-template-columns:1fr 1fr}.logo-card{grid-column:1/-1;max-width:280px;margin:auto}.gallery{grid-template-columns:1fr}.fact-strip{grid-template-columns:1fr}.actions{display:grid}.actions .cta{width:100%}.footer-links{grid-template-columns:1fr 1fr}.section{padding:48px 0}}
@media(max-width:360px){.brand span{display:none}.header-inner{min-height:66px}.hero-art{grid-template-columns:1fr}.logo-card{grid-column:auto}.screen-stack{grid-template-columns:1fr 1fr}.footer-links{grid-template-columns:1fr}}