:root{
--bg:#0b0f14;--bg2:#121924;--card:#161f2c;--line:#243244;
--tx:#e8eef6;--mu:#9fb0c4;--ac:#00e5a0;--a2:#ff2d95;--a3:#ffc542;
--dg:#ff5a5a;--wrap:1080px;
--f:system-ui,-apple-system,'Segoe UI',Roboto,'Noto Sans Bengali',sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--tx);font:400 17px/1.65 var(--f)}
img{max-width:100%;height:auto}
a{color:var(--ac);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:var(--ac);color:var(--bg);padding:8px;
z-index:99;border-radius:6px}

/* head */
.site-head{position:sticky;top:0;z-index:40;background:rgba(11,15,20,.94);
backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;gap:14px;min-height:60px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:17px;
color:var(--tx);white-space:nowrap}
.brand-mark{width:18px;height:18px;border-radius:5px;
background:linear-gradient(135deg,var(--ac),var(--a2))}
.nav{margin-left:auto}
.nav ul{display:flex;gap:16px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.nav a{color:var(--mu);font-size:14px;font-weight:500}
.nav a[aria-current]{color:var(--ac)}
.head-side{display:flex;align-items:center;gap:10px;margin-left:14px}
.lang-switch{font-size:14px;color:var(--mu);border:1px solid var(--line);
border-radius:8px;padding:5px 10px}
.menu-btn{display:none;margin-left:auto;background:none;border:0;padding:8px;
cursor:pointer}
.menu-btn span{display:block;width:22px;height:2px;background:var(--tx);
margin:4px 0;border-radius:2px}

/* buttons */
.btn{display:inline-block;background:linear-gradient(135deg,var(--ac),#00b981);
color:#04120c;font-weight:800;padding:11px 20px;border-radius:10px;
font-size:15px;line-height:1.2;text-align:center;white-space:nowrap}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.btn-sm{padding:8px 14px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:17px}
.btn-pulse{animation:pl 2.4s ease-in-out infinite}
@keyframes pl{0%,100%{box-shadow:0 0 0 0 rgba(0,229,160,.45)}
50%{box-shadow:0 0 0 14px rgba(0,229,160,0)}}
@media(prefers-reduced-motion:reduce){.btn-pulse{animation:none}}

/* badges */
.badges{display:flex;gap:8px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;
font-weight:600;color:var(--tx);background:var(--card);
border:1px solid var(--line);border-radius:999px;padding:6px 12px}
.badge::before{content:"";width:14px;height:14px;background:var(--ac);
-webkit-mask-size:contain;mask-size:contain;-webkit-mask-repeat:no-repeat;
mask-repeat:no-repeat}
.b-bonus::before{background:var(--a3);-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 12v9H4v-9M2 7h20v5H2zM12 7V3M12 7c-3 0-5-1-5-2s2-2 5 2zM12 7c3 0 5-1 5-2s-2-2-5 2z' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 12v9H4v-9M2 7h20v5H2zM12 7V3M12 7c-3 0-5-1-5-2s2-2 5 2zM12 7c3 0 5-1 5-2s-2-2-5 2z' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E")}
.b-payout::before{background:var(--ac);-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M13 2L3 14h8l-1 8 10-12h-8z' fill='%23000'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M13 2L3 14h8l-1 8 10-12h-8z' fill='%23000'/%3E%3C/svg%3E")}
.b-licence::before{background:var(--a2);-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2l8 4v6c0 5-3.5 8.5-8 10-4.5-1.5-8-5-8-10V6z' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2l8 4v6c0 5-3.5 8.5-8 10-4.5-1.5-8-5-8-10V6z' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E")}

/* strip */
.strip{background:var(--bg2);border-bottom:1px solid var(--line)}
.strip-row{display:flex;align-items:center;gap:14px;padding:11px 20px;
flex-wrap:wrap}
.strip-row .btn{margin-left:auto}

/* crumbs + doc */
.crumbs{font-size:14px;color:var(--mu);padding:14px 0 0}
.crumbs a{color:var(--mu)}
.doc{padding:10px 0 60px}
h1{font-size:clamp(28px,4.6vw,42px);line-height:1.18;margin:14px 0 12px;
letter-spacing:-.02em}
h2{font-size:clamp(21px,3vw,28px);line-height:1.25;margin:38px 0 12px;
letter-spacing:-.01em;scroll-margin-top:76px}
h3{font-size:19px;margin:24px 0 8px}
.lead{font-size:19px;color:var(--mu);margin:0 0 14px;max-width:70ch}
p{max-width:72ch}
.byline{font-size:14px;color:var(--mu);margin:0 0 18px}
ul,ol{max-width:72ch}
li{margin:6px 0}
.steps li{margin:10px 0}
blockquote{margin:18px 0;padding:12px 18px;border-left:3px solid var(--ac);
background:var(--card);border-radius:0 10px 10px 0}

/* short answer */
.short{background:var(--card);border:1px solid var(--line);
border-left:3px solid var(--ac);border-radius:0 12px 12px 0;
padding:16px 20px;margin:22px 0}
.short-h{font-size:13px;text-transform:uppercase;letter-spacing:.09em;
color:var(--ac);margin:0 0 8px}
.short p{margin:0}

/* toc */
.toc{background:var(--bg2);border:1px solid var(--line);border-radius:12px;
padding:16px 20px;margin:26px 0}
.toc-h{font-size:13px;text-transform:uppercase;letter-spacing:.09em;
color:var(--mu);margin:0 0 8px}
.toc ol{margin:0;padding-left:20px;columns:2;column-gap:28px}
@media(max-width:700px){.toc ol{columns:1}}
.toc a{color:var(--tx);font-size:15px}

/* source note */
.src{font-size:14px;color:var(--mu);background:rgba(255,197,66,.07);
border:1px solid rgba(255,197,66,.22);border-radius:10px;
padding:10px 14px 10px 38px;position:relative;margin:12px 0;max-width:72ch}
.src-i{position:absolute;left:14px;top:12px;width:14px;height:14px;
border-radius:50%;background:var(--a3)}

/* tables */
.tw{overflow-x:auto;margin:18px 0;border:1px solid var(--line);
border-radius:12px}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:15px}
caption{caption-side:bottom;text-align:left;color:var(--mu);font-size:14px;
padding:10px 14px}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);
vertical-align:top}
thead th{background:var(--bg2);color:var(--mu);font-size:13px;
text-transform:uppercase;letter-spacing:.06em}
tbody th{font-weight:600;color:var(--tx)}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}

/* figures */
.fig{margin:22px 0}
.fig img{border-radius:14px;display:block;width:100%}
figcaption{font-size:14px;color:var(--mu);margin-top:8px}
.svg-fig{margin:24px 0;overflow-x:auto}
.dia{max-width:100%;height:auto;display:block}

/* faq */
.faq details{background:var(--card);border:1px solid var(--line);
border-radius:12px;margin:10px 0;padding:0}
.faq summary{cursor:pointer;padding:14px 18px;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--ac);font-weight:800}
.faq details[open] summary::after{content:"−"}
.det-body{padding:0 18px 14px}
.det-body p{margin:0;color:var(--mu)}

/* cta */
.cta-lead{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:20px 0}
.cta-lead-note{font-size:14px;color:var(--mu)}
.cta-box{background:linear-gradient(160deg,var(--card),var(--bg2));
border:1px solid var(--line);border-radius:16px;padding:24px;margin:32px 0;
text-align:center}
.cta-box .badges{justify-content:center;margin-bottom:16px}
.cta-terms{font-size:13px;color:var(--mu);margin:14px auto 0;max-width:60ch}

/* cards */
.next{margin-top:44px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
gap:14px}
.card{display:block;background:var(--card);border:1px solid var(--line);
border-radius:14px;padding:18px}
.card:hover{border-color:var(--ac);text-decoration:none}
.card-h{display:block;font-weight:700;color:var(--tx);margin-bottom:6px}
.card-p{display:block;font-size:14px;color:var(--mu)}

/* footer */
.site-foot{background:var(--bg2);border-top:1px solid var(--line);
padding:36px 0 96px;margin-top:50px;font-size:14px;color:var(--mu)}
.foot-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
gap:20px;margin-bottom:26px}
.foot-cols ul{list-style:none;margin:0;padding:0}
.foot-cols a{color:var(--mu)}
.foot-adult{color:var(--tx)}
.foot-disc,.foot-note{max-width:80ch}
.foot-copy{border-top:1px solid var(--line);padding-top:16px;margin-top:20px}

/* sticky */
.sticky-cta{display:none}
@media(max-width:860px){
.nav{display:none;order:9;flex-basis:100%;margin:0}
.nav.open{display:block}
.nav ul{flex-direction:column;gap:0;padding:8px 0}
.nav li{border-bottom:1px solid var(--line)}
.nav a{display:block;padding:11px 2px;font-size:15px}
.menu-btn{display:block}
.head-side{margin-left:0}
.head-row{flex-wrap:wrap}
.sticky-cta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:50;
align-items:center;gap:12px;padding:10px 16px;background:rgba(18,25,36,.97);
border-top:1px solid var(--line);backdrop-filter:blur(8px)}
.sticky-txt{font-size:13px;color:var(--mu);flex:1;line-height:1.3}
.site-foot{padding-bottom:110px}
/* полоса под шапкой: одна прокручиваемая строка бейджей, кнопку убираем —
   её роль на мобильном играет липкая панель */
.strip-row{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;
scrollbar-width:none;padding:9px 16px}
.strip-row::-webkit-scrollbar{display:none}
.strip .badges{flex-wrap:nowrap}
.strip-row .btn{display:none}
.badge{white-space:nowrap}
h1{font-size:clamp(26px,7vw,34px)}
.cta-box{padding:20px 16px}
}