/* Plaazaa App: Meowduku solver — 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);
}}
*{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:430px;margin:0 auto;padding:18px 14px 40px}
.card{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;margin-bottom:12px;align-items:center}
.row2{margin-top:12px}
.stat{flex:0 0 auto;background:var(--pz-soft);border-radius:var(--pz-radius-sm);padding:5px 12px;text-align:center}
.stat small{display:block;font-size:10px;letter-spacing:.5px;color:var(--pz-muted)}
.stepper{display:flex;align-items:center;gap:8px}
.stepper button{border:none;background:transparent;color:var(--pz-accent-ink);font-size:18px;font-weight:700;width:26px;height:26px;line-height:1;border-radius:8px}
.stepper button:active{background:var(--pz-accent-soft)}
.stepper b{font-family:Sora,"Noto Sans",sans-serif;font-size:17px;min-width:24px}
.btn{border:none;border-radius:var(--pz-radius-sm);background:var(--pz-accent);color:#fff;font-weight:600;font-size:13px;padding:9px 16px}
.btn.ghost{background:var(--pz-accent-soft);color:var(--pz-accent-ink);margin-left:auto}
.btn:active{filter:brightness(1.08)}
/* drop zone */
.drop{border:2px dashed var(--pz-line);border-radius:var(--pz-radius-sm);padding:34px 16px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}
.drop:hover,.drop.over{border-color:var(--pz-accent);background:var(--pz-accent-soft)}
.drop-ico{font-size:44px;line-height:1;margin-bottom:10px}
.drop-t{font-weight:700;font-size:15px;margin-bottom:6px}
.drop-s{font-size:12px;color:var(--pz-muted);max-width:260px;margin:0 auto;line-height:1.5}
/* board */
.board{display:grid;gap:4px;background:var(--pz-soft);border-radius:var(--pz-radius-sm);padding:8px;user-select:none}
.cell{position:relative;aspect-ratio:1;border-radius:6px;cursor:pointer;min-width:0}
.cell:active{box-shadow:0 0 0 2px var(--pz-accent) inset}
.cell .xmark{position:absolute;inset:0;display:grid;place-items:center;font-weight:800;color:#fff;font-size:clamp(12px,3.4vw,20px);text-shadow:0 1px 1px rgba(0,0,0,.18);pointer-events:none}
.cell .catmark{position:absolute;inset:0;display:grid;place-items:center;font-size:clamp(15px,4.6vw,26px);pointer-events:none;animation:pop .18s ease}
.cell.fix .catmark{animation:none}
.cell.reveal .catmark{box-shadow:0 0 0 2px rgba(255,255,255,.75) inset;border-radius:6px}
@keyframes pop{from{transform:scale(.4);opacity:.4}to{transform:scale(1);opacity:1}}
.note{font-size:12px;color:var(--pz-muted);margin-top:10px;line-height:1.55}
/* conflict flags + clipboard paste */
.cell.bad{box-shadow:0 0 0 2px #e5484d inset;border-radius:6px}
.cell.badnew{animation:shake .3s}
@keyframes shake{25%{transform:translateX(3px)}75%{transform:translateX(-3px)}}
.conf{margin-top:10px;font-size:13px;font-weight:600;color:#b42318}
@media(prefers-color-scheme:dark){.conf{color:#fda29b}}
.pastewrap{margin-top:12px}
.btn.wide{width:100%;padding:11px;font-size:14px}
.msg{font-size:12px;color:var(--pz-accent-ink);font-weight:600;margin-left:auto}
.err{margin-top:10px;font-size:13px;color:#b42318;background:#fef3f2;border:1px solid #fecdca;border-radius:var(--pz-radius-sm);padding:8px 12px}
@media(prefers-color-scheme:dark){.err{background:#3d1211;border-color:#8a3a37;color:#fda29b}}
.foot{text-align:center;font-size:11px;color:var(--pz-muted);margin-top:14px}