:root{--bg:#0f0b1e;--panel:#191433;--panel2:#221b45;--line:#2d2559;--text:#f3f0ff;--mut:#a79fd1;--brand:#8b5cf6;--brand2:#c084fc;--hot:#ff5a5f;--new:#22c55e;--side:232px;--top:64px}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:15px/1.45 "Segoe UI",system-ui,Roboto,sans-serif;min-height:100vh}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
.top{position:fixed;inset:0 0 auto 0;height:var(--top);display:flex;align-items:center;gap:16px;padding:0 20px;background:rgba(15,11,30,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:30}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.3px;white-space:nowrap}
.logo i{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand2));font-style:normal}
.logo b{color:var(--brand2)}
.search{flex:1;max-width:560px;margin:0 auto;position:relative}
.search input{width:100%;height:42px;padding-block:0;padding-inline:42px 16px;border-radius:999px;border:1px solid var(--line);background:var(--panel);color:var(--text);font:inherit;outline:0}
.search input:focus{border-color:var(--brand)}
.search span{position:absolute;inset-inline-start:15px;top:9px;opacity:.7}
.btn{height:40px;padding:0 18px;border-radius:999px;background:linear-gradient(135deg,var(--brand),#6d28d9);font-weight:700;white-space:nowrap}
.btn:hover{filter:brightness(1.12)}
.side{position:fixed;top:var(--top);bottom:0;inset-inline-start:0;width:var(--side);padding:16px 12px;overflow:auto;background:var(--panel);border-inline-end:1px solid var(--line);z-index:20}
.side h6{margin:14px 12px 6px;color:var(--mut);font-size:12px;letter-spacing:1px;text-transform:uppercase}
.side a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;color:#d8d2f5;font-weight:600}
.side a:hover{background:var(--panel2)}
.side a.on{background:var(--brand);color:#fff}
.side a i{font-style:normal;width:22px;text-align:center}
main{margin-inline-start:var(--side);padding:calc(var(--top) + 22px) 26px 40px}
.sec{margin-top:30px}
.sec h2{font-size:21px;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.sec h2 small{color:var(--mut);font-weight:500;font-size:14px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:14px}
.mosaic{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:minmax(110px,13vw);gap:14px}
.mosaic .tile:first-child{grid-column:span 2;grid-row:span 2}
.tile{position:relative;display:block;border-radius:16px;overflow:hidden;aspect-ratio:4/3;background:var(--panel2);transition:transform .18s,box-shadow .18s}
.mosaic .tile{aspect-ratio:auto}
.tile:hover{transform:translateY(-4px) scale(1.03);box-shadow:0 14px 30px rgba(139,92,246,.35);z-index:2}
.art{position:absolute;inset:0;display:grid;place-items:center;font-size:56px}
.mosaic .tile:first-child .art{font-size:110px}
.tile .art span{filter:drop-shadow(0 6px 10px rgba(0,0,0,.45));transition:transform .25s}
.tile:hover .art span{transform:scale(1.18) rotate(-6deg)}
.cap{position:absolute;inset:auto 0 0 0;padding:26px 12px 10px;background:linear-gradient(transparent,rgba(8,5,20,.9));font-weight:700;font-size:14px;line-height:1.2}
.cap em{display:block;margin-top:2px;font:500 12px/1 inherit;color:#cfc7f5}
.badge{position:absolute;top:10px;inset-inline-start:10px;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:800;text-transform:uppercase}
.badge.hot{background:var(--hot)}.badge.new{background:var(--new);color:#052e16}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:8px 14px;border-radius:999px;background:var(--panel2);border:1px solid var(--line);font-weight:600;font-size:14px}
.chip:hover{border-color:var(--brand)}
.empty{padding:40px;text-align:center;color:var(--mut);background:var(--panel);border-radius:16px}
.foot{margin:50px 0 0;padding-top:20px;border-top:1px solid var(--line);color:var(--mut);font-size:13px;display:flex;gap:16px;flex-wrap:wrap}
/* trang chơi */
.stage{background:#000;border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.frame{position:relative;aspect-ratio:16/9;max-height:calc(100vh - 210px);width:100%;background:#000}
.frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.soon{position:absolute;inset:0;display:grid;place-content:center;text-align:center;gap:10px;padding:20px}
.soon div{font-size:84px}
.bar{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--panel)}
.bar h1{font-size:20px;flex:1}
.bar .ic{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;font-size:22px}
.bar button{padding:8px 14px;border-radius:10px;background:var(--panel2);border:1px solid var(--line);font-weight:600}
.bar button:hover{border-color:var(--brand)}
.info{margin-top:16px;color:#d8d2f5;max-width:760px}
@media(max-width:900px){
 :root{--side:0px;--top:58px}
 .top{padding:0 12px;gap:10px}.logo span{display:none}
 .btn{padding:0 12px}
 .side{position:static;width:auto;padding:0;margin:calc(var(--top)) 0 0;border:0;background:var(--bg);display:flex;gap:8px;overflow-x:auto;padding:12px 14px 0}
 .side h6{display:none}
 .side a{flex:none;padding:8px 14px;border-radius:999px;background:var(--panel2);font-size:14px}
 main{margin:0;padding:6px 14px 30px}
 .mosaic{grid-template-columns:repeat(2,1fr);grid-auto-rows:auto}
 .mosaic .tile{aspect-ratio:4/3}
 .mosaic .tile:first-child{grid-column:span 2;grid-row:auto}
 .mosaic .tile:first-child .art{font-size:90px}
 .grid{grid-template-columns:repeat(2,1fr);gap:10px}
 .frame{max-height:none}
 .bar{flex-wrap:wrap}
}
/* chọn ngôn ngữ */
.lang{position:relative}
.langbtn{height:40px;padding:0 12px;border-radius:999px;background:var(--panel);border:1px solid var(--line);font-weight:700;white-space:nowrap}
.langbtn:hover{border-color:var(--brand)}
.langmenu{position:absolute;inset-inline-end:0;top:48px;width:min(320px,92vw);max-height:70vh;overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:0 16px 40px rgba(0,0,0,.5);z-index:40}
.langmenu[hidden]{display:none}
.langmenu p{color:var(--mut);font-size:12px;padding:2px 8px 8px}
.langmenu ul{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:4px}
.langmenu button{width:100%;padding:8px 10px;border-radius:8px;text-align:start;font-size:14px}
.langmenu button:hover{background:var(--panel2)}
.langmenu button.on{background:var(--brand);color:#fff}
.langmenu button.soon{color:var(--mut)}
[dir=rtl] .tile .art span{transform:none}
@media(max-width:900px){.langbtn{padding:0 10px}.langmenu ul{grid-template-columns:1fr}}