/* tk1917 mobile-first design system - all classes use the s1a4 prefix. */
:root{
  font-size:62.5%;
  --s1a4-primary:#FFD700;
  --s1a4-bg:#1B263B;
  --s1a4-bg2:#0b1220;
  --s1a4-panel:#24344f;
  --s1a4-card:#101a2c;
  --s1a4-text:#f8fbff;
  --s1a4-muted:#b7c4d7;
  --s1a4-green:#1fd19a;
  --s1a4-coral:#ff6b4a;
  --s1a4-blue:#38bdf8;
  --s1a4-border:rgba(255,215,0,.24);
  --s1a4-shadow:0 1.2rem 3rem rgba(0,0,0,.38);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at top left,rgba(255,215,0,.16),transparent 26rem),linear-gradient(180deg,var(--s1a4-bg2),var(--s1a4-bg));color:var(--s1a4-text);font:1.55rem/1.5 'Noto Sans Bengali','Hind Siliguri',system-ui,sans-serif;overflow-x:hidden}
a{color:var(--s1a4-primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;display:block}button{font:inherit}.s1a4-lock{overflow:hidden}.s1a4-container{width:min(100%,43rem);margin:0 auto;padding:0 1.4rem}.s1a4-wrapper{width:min(100%,43rem);margin:0 auto}.s1a4-main{padding-top:8.2rem}.s1a4-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(11,18,32,.94);backdrop-filter:blur(18px);border-bottom:.1rem solid var(--s1a4-border)}.s1a4-topbar{height:6.8rem;display:flex;align-items:center;justify-content:space-between;gap:.8rem}.s1a4-brand{display:flex;align-items:center;gap:.8rem;color:var(--s1a4-text);font-weight:900;font-size:1.9rem;letter-spacing:.02em}.s1a4-logo{width:3.2rem;height:3.2rem;border-radius:.9rem;box-shadow:0 0 0 .2rem rgba(255,215,0,.25)}.s1a4-actions{display:flex;align-items:center;gap:.5rem}.s1a4-btn{min-height:4.4rem;border:0;border-radius:1.3rem;padding:1rem 1.35rem;font-weight:900;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:.55rem;transition:transform .18s ease,filter .18s ease,background .18s ease}.s1a4-btn:active{transform:scale(.95)}.s1a4-btn-primary{background:linear-gradient(135deg,var(--s1a4-primary),#ff9f1c);color:#101828;box-shadow:0 .8rem 1.8rem rgba(255,215,0,.22)}.s1a4-btn-ghost{background:rgba(255,255,255,.08);color:var(--s1a4-text);border:.1rem solid rgba(255,255,255,.12)}.s1a4-menu-btn{width:4.4rem;padding:0;background:var(--s1a4-panel);color:var(--s1a4-primary);border:.1rem solid var(--s1a4-border);border-radius:1.2rem}.s1a4-desktop-nav{display:none}.s1a4-mobile-menu{position:fixed;inset:0 0 auto auto;width:min(86vw,34rem);height:100vh;background:linear-gradient(180deg,#132035,#0b1220);z-index:9999;transform:translateX(105%);transition:transform .25s ease;padding:7.8rem 1.5rem 2rem;box-shadow:-1rem 0 3rem rgba(0,0,0,.45)}.s1a4-menu-open{transform:translateX(0)}.s1a4-menu-close{position:absolute;top:1.5rem;right:1.5rem}.s1a4-menu-list{display:grid;gap:.9rem}.s1a4-menu-list a{min-height:4.8rem;border-radius:1.4rem;padding:1.2rem;background:rgba(255,255,255,.07);border:.1rem solid rgba(255,255,255,.09);color:var(--s1a4-text);font-weight:800}.s1a4-hero{position:relative;padding:1.2rem 0 2rem}.s1a4-carousel{position:relative;border-radius:2.2rem;overflow:hidden;border:.1rem solid var(--s1a4-border);box-shadow:var(--s1a4-shadow);background:#07101e;min-height:20rem}.s1a4-slide{display:none;position:relative}.s1a4-slide-active{display:block}.s1a4-slide img{width:100%;height:21rem;object-fit:cover}.s1a4-slide::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,16,30,.84),transparent 55%)}.s1a4-slide-text{position:absolute;left:1.6rem;right:1.6rem;bottom:1.4rem;z-index:2}.s1a4-eyebrow{display:inline-flex;align-items:center;gap:.5rem;color:#0b1220;background:var(--s1a4-primary);font-weight:900;border-radius:99rem;padding:.35rem .9rem;font-size:1.18rem}.s1a4-hero h1,.s1a4-page-hero h1{margin:1rem 0 .8rem;font-size:2.55rem;line-height:1.18;color:#fff}.s1a4-lead{color:var(--s1a4-muted);margin:.5rem 0 1.2rem}.s1a4-dots{display:flex;gap:.6rem;justify-content:center;margin-top:1rem}.s1a4-dot{width:.85rem;height:.85rem;border-radius:50%;border:0;background:rgba(255,255,255,.32)}.s1a4-dot-active{background:var(--s1a4-primary);width:2.2rem;border-radius:2rem}.s1a4-section{padding:1.7rem 0}.s1a4-section-title{font-size:2.15rem;line-height:1.25;margin:0 0 .8rem;color:#fff}.s1a4-section-copy{color:var(--s1a4-muted);margin:.4rem 0 1.1rem}.s1a4-card{background:linear-gradient(180deg,rgba(36,52,79,.92),rgba(16,26,44,.94));border:.1rem solid rgba(255,255,255,.09);border-radius:2rem;padding:1.45rem;box-shadow:0 .8rem 2rem rgba(0,0,0,.22)}.s1a4-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.s1a4-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:.9rem}.s1a4-game-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.85rem}.s1a4-game{border:.1rem solid rgba(255,255,255,.08);background:rgba(255,255,255,.055);border-radius:1.4rem;padding:.7rem .55rem;color:var(--s1a4-text);min-height:10.8rem;text-align:center;transition:transform .18s ease,border-color .18s ease}.s1a4-game:hover{transform:translateY(-.2rem);border-color:var(--s1a4-primary);text-decoration:none}.s1a4-game img{width:5.2rem;height:5.2rem;object-fit:cover;border-radius:1.2rem;margin:0 auto .55rem}.s1a4-game span{font-size:1.16rem;line-height:1.22;font-weight:800;display:block}.s1a4-category-head{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin:1.3rem 0 .8rem}.s1a4-chip{display:inline-flex;align-items:center;gap:.45rem;border:.1rem solid var(--s1a4-border);background:rgba(255,215,0,.08);color:var(--s1a4-primary);border-radius:99rem;padding:.45rem .85rem;font-size:1.18rem;font-weight:900}.s1a4-stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}.s1a4-stat{background:rgba(255,255,255,.07);border-radius:1.4rem;padding:1rem;text-align:center}.s1a4-stat strong{display:block;font-size:1.9rem;color:var(--s1a4-primary)}.s1a4-list{display:grid;gap:.8rem;margin:1rem 0;padding:0;list-style:none}.s1a4-list li{padding:1rem;border-radius:1.3rem;background:rgba(255,255,255,.055);border-left:.35rem solid var(--s1a4-primary)}.s1a4-payments{display:flex;flex-wrap:wrap;gap:.8rem}.s1a4-payments span{padding:.8rem 1rem;border-radius:1.2rem;background:#fff;color:#102033;font-weight:900}.s1a4-review{display:grid;gap:.8rem}.s1a4-review blockquote{margin:0;padding:1.1rem;border-radius:1.5rem;background:rgba(255,255,255,.06);border:.1rem solid rgba(255,255,255,.08)}.s1a4-promo-link{color:var(--s1a4-primary);font-weight:900;text-decoration:underline;cursor:pointer}.s1a4-inline-links{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1rem}.s1a4-inline-links a{font-weight:800;color:#9ee7ff}.s1a4-page-hero{padding:9rem 0 2rem;background:radial-gradient(circle at top right,rgba(255,215,0,.16),transparent 20rem)}.s1a4-step{display:grid;grid-template-columns:4rem 1fr;gap:1rem;align-items:start}.s1a4-step-num{width:4rem;height:4rem;border-radius:1.2rem;background:var(--s1a4-primary);color:#0b1220;display:grid;place-items:center;font-weight:900}.s1a4-faq details{border:.1rem solid rgba(255,255,255,.1);border-radius:1.4rem;padding:1rem;background:rgba(255,255,255,.055);margin:.8rem 0}.s1a4-faq summary{font-weight:900;color:#fff;cursor:pointer}.s1a4-footer{margin-top:2rem;background:#090f1c;border-top:.1rem solid var(--s1a4-border);padding:2rem 0 8.6rem}.s1a4-footer-logo{display:flex;align-items:center;gap:.8rem;font-size:2rem;font-weight:900}.s1a4-footer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem;margin:1.2rem 0}.s1a4-footer-links a{min-height:4.4rem;border-radius:1.2rem;background:rgba(255,255,255,.06);display:flex;align-items:center;padding:.9rem;color:var(--s1a4-text);font-weight:800}.s1a4-partners{display:flex;gap:.8rem;flex-wrap:wrap;margin:1rem 0}.s1a4-partner{border:.1rem solid rgba(255,255,255,.12);border-radius:1rem;padding:.6rem .9rem;color:var(--s1a4-muted);font-size:1.2rem}.s1a4-bottom-nav{position:fixed;bottom:0;left:0;right:0;height:6.2rem;background:#142139;z-index:1000;border-top:.1rem solid var(--s1a4-border);display:flex;justify-content:space-around;align-items:center;box-shadow:0 -1rem 2rem rgba(0,0,0,.32)}.s1a4-bottom-nav button,.s1a4-bottom-nav a{min-width:6rem;min-height:6rem;border:0;background:transparent;color:var(--s1a4-muted);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.25rem;font-size:1.05rem;font-weight:800;position:relative}.s1a4-bottom-nav i,.s1a4-bottom-nav ion-icon,.s1a4-bottom-nav .material-icons,.s1a4-bottom-nav .ti{font-size:2.35rem}.s1a4-bottom-nav button:active,.s1a4-bottom-nav a:active{transform:scale(.93)}.s1a4-bottom-nav .s1a4-current{color:var(--s1a4-primary)}.s1a4-badge{position:absolute;top:.55rem;right:1rem;background:var(--s1a4-coral);color:#fff;border-radius:99rem;font-size:.9rem;padding:.1rem .45rem}.s1a4-copy{color:var(--s1a4-muted);font-size:1.2rem}.s1a4-divider{height:.1rem;background:rgba(255,255,255,.1);margin:1.4rem 0}.s1a4-two-col{display:grid;gap:1rem}.s1a4-win{display:flex;align-items:center;justify-content:space-between;gap:.8rem;border-bottom:.1rem dashed rgba(255,255,255,.12);padding:.75rem 0}.s1a4-win strong{color:var(--s1a4-green)}
@media (max-width:768px){main{padding-bottom:8rem}.s1a4-hide-mobile{display:none!important}}
@media (min-width:769px){body{background:#0b1220}.s1a4-wrapper,.s1a4-container{width:min(112rem,100%);max-width:112rem}.s1a4-main{padding-top:8.8rem}.s1a4-topbar{height:7.4rem}.s1a4-desktop-nav{display:flex;gap:1rem}.s1a4-desktop-nav a{color:var(--s1a4-text);font-weight:800}.s1a4-menu-btn{display:none}.s1a4-bottom-nav{display:none}.s1a4-footer{padding-bottom:2rem}.s1a4-grid{grid-template-columns:repeat(4,1fr)}.s1a4-grid-3{grid-template-columns:repeat(3,1fr)}.s1a4-game-grid{grid-template-columns:repeat(8,1fr)}.s1a4-slide img{height:36rem}.s1a4-two-col{grid-template-columns:1.05fr .95fr}.s1a4-hero h1,.s1a4-page-hero h1{font-size:4rem}.s1a4-mobile-menu{display:none}}