/* Plaazaa App: 2048 — styles. pz-modern tokens, auto light/dark. v1 */
:root{
  --pz-bg:#f4f5f8; --pz-card:#ffffff; --pz-soft:#f1f2f6; --pz-line:#e6e8ee;
  --pz-text:#111827; --pz-muted:#5b6474; --pz-hdr:rgba(255,255,255,.9);
  --pz-accent:#7c3aed; --pz-accent-soft:#f3efff; --pz-accent-ink:#6d28d9;
  --pz-radius:16px; --pz-radius-sm:10px;
  --pz-shadow:0 1px 2px rgba(16,24,40,.04),0 2px 8px rgba(16,24,40,.04);
}
@media(prefers-color-scheme:dark){
:root{
  --pz-bg:#0e1015; --pz-card:#171a21; --pz-soft:#20242d; --pz-line:#262a33;
  --pz-text:#eceef3; --pz-muted:#a0a8b8; --pz-hdr:rgba(23,26,33,.9);
  --pz-accent:#a78bfa; --pz-accent-soft:#25244d; --pz-accent-ink:#c4b5fd;
  --pz-shadow:0 1px 2px rgba(0,0,0,.3);
  --t2:#2b2847; --t2i:#c4b5fd;
  --t4:#3d2f12; --t4i:#fcd34d;
  --t8:#7c2d12; --t8i:#fdba74;
  --t16:#7f1d3a; --t16i:#fda4af;
  --t32:#4c1033; --t32i:#f0abfc;
  --t64:#1e1b4b; --t64i:#a5b4fc;
}}
:root{
  --t2:#e0e7ff; --t2i:#3730a3;
  --t4:#fde68a; --t4i:#92400e;
  --t8:#fed7aa; --t8i:#9a3412;
  --t16:#fecdd3; --t16i:#9f1239;
  --t32:#f5d0fe; --t32i:#86198f;
  --t64:#c7d2fe; --t64i:#312e81;
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
body{background:var(--pz-bg);color:var(--pz-text);font-family:"Noto Sans Thai","Noto Sans",system-ui,-apple-system,"Segoe UI",sans-serif;min-height:100vh;-webkit-font-smoothing:antialiased;touch-action:manipulation}
button{font-family:inherit;cursor:pointer}
.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:12px;background:var(--pz-hdr);backdrop-filter:blur(14px);border-bottom:1px solid var(--pz-line);padding:12px 20px}
.brand{font-weight:700;font-size:16px;text-decoration:none;color:var(--pz-text)}
.brand b{color:var(--pz-accent)}
.appname{font-size:14px;color:var(--pz-muted)}
.back{margin-left:auto;font-size:13px;color:var(--pz-accent-ink);text-decoration:none;font-weight:600}
main{max-width:380px;margin:0 auto;padding:18px 14px 56px}
.game{background:var(--pz-card);border:1px solid var(--pz-line);border-radius:var(--pz-radius);box-shadow:var(--pz-shadow);padding:14px}
.row{display:flex;gap:8px;align-items:stretch;margin-bottom:12px}
.stat{flex:0 0 auto;background:var(--pz-soft);border-radius:var(--pz-radius-sm);padding:6px 14px;text-align:center;min-width:70px}
.stat small{display:block;font-size:10px;letter-spacing:.5px;color:var(--pz-muted)}
.stat b{font-family:Sora,"Noto Sans",sans-serif;font-size:17px}
.btn{margin-left:auto;border:none;border-radius:var(--pz-radius-sm);background:var(--pz-accent);color:#fff;font-weight:600;font-size:13px;padding:0 16px}
.btn:hover{filter:brightness(1.08)}
.board{position:relative;aspect-ratio:1;background:var(--pz-soft);border-radius:var(--pz-radius-sm);padding:8px;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:8px;touch-action:none}
.cell{background:rgba(127,127,140,.18);border-radius:8px;position:relative}
.tile{position:absolute;inset:0;border-radius:8px;display:grid;place-items:center;font-family:Sora,"Noto Sans",sans-serif;font-weight:700;font-size:clamp(15px,6.2vw,26px);animation:pop .15s ease}
.tile.n2{background:var(--t2);color:var(--t2i)}
.tile.n4{background:var(--t4);color:var(--t4i)}
.tile.n8{background:var(--t8);color:var(--t8i)}
.tile.n16{background:var(--t16);color:var(--t16i)}
.tile.n32{background:var(--t32);color:var(--t32i)}
.tile.n64{background:var(--t64);color:var(--t64i)}
.tile.n128,.tile.n256,.tile.n512,.tile.n1024,.tile.n2048,.tile.nbig{background:var(--pz-accent);color:#fff}
.tile.n256{font-size:clamp(13px,5.2vw,22px)}
.tile.n512{font-size:clamp(12px,4.6vw,19px)}
.tile.n1024{font-size:clamp(10px,3.8vw,15px)}
.tile.n2048{font-size:clamp(9px,3.4vw,13px)}
.tile.nbig{font-size:clamp(8px,3vw,12px)}
@keyframes pop{from{transform:scale(.6);opacity:.4}to{transform:scale(1);opacity:1}}
.overlay{position:absolute;inset:0;background:rgba(14,16,21,.35);border-radius:var(--pz-radius-sm);display:grid;place-content:center;text-align:center;gap:10px;backdrop-filter:blur(2px)}
.overlay .big{font-family:Sora,"Noto Sans",sans-serif;font-size:20px;font-weight:700;color:#fff}
.note{margin-top:12px;color:var(--pz-muted);font-size:12px;text-align:center}