:root{--navy:#12304F;--teal:#1E7A66;--teald:#16604F;--gold:#F5B841;--mint:#E6F4EF;--line:#D5E3DE;--ink:#102236;--muted:#5B6B7B}
*{box-sizing:border-box}html,body{margin:0}
body{font-family:'Inter','Segoe UI',system-ui,-apple-system,Arial,sans-serif;color:var(--ink);background:radial-gradient(1100px 500px at 85% -10%,#DDF1EA 0,transparent 60%),radial-gradient(900px 500px at -10% 20%,#E9F0FA 0,transparent 55%),#F5FAF8;min-height:100vh;-webkit-tap-highlight-color:transparent}
[dir=rtl] body{font-family:'IBM Plex Sans Arabic','Segoe UI',Tahoma,Arial,sans-serif}
header{background:#fff;border-bottom:1px solid var(--line);padding:10px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.brand{font-weight:800;font-size:18px;color:var(--navy);text-decoration:none}.brand span{color:var(--teal)}
nav{display:flex;gap:10px;align-items:center;flex-wrap:wrap}nav a{color:var(--navy);text-decoration:none;font-weight:600;font-size:14px;padding:7px 12px;border-radius:999px}
nav a.l{border:1.5px solid var(--navy)}nav a:hover{background:var(--mint)}
main{max-width:1100px;margin:0 auto;padding:22px 16px 50px}
h1{font-size:clamp(26px,4vw,40px);margin:6px 0 6px;color:var(--navy)}p.lead{color:var(--muted);margin:0 0 22px;font-size:17px;max-width:46em}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.gc{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s}
.gc:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(18,48,79,.14)}
.gc i{font-style:normal;font-size:38px;line-height:1}.gc h3{margin:6px 0 0;font-size:18px;color:var(--navy)}.gc p{margin:0;color:var(--muted);font-size:14px;flex:1}
.gc b{margin-top:8px;color:#fff;background:var(--teal);border-radius:999px;text-align:center;padding:9px;font-size:14px}
.crumb{font-size:14px;color:var(--muted);margin-bottom:6px}.crumb a{color:var(--teal);font-weight:600}
.gw{max-width:520px;margin:0 auto}
.bar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:10px 0;flex-wrap:wrap}
.sc{display:flex;gap:10px}.sc div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px 14px;text-align:center;min-width:70px}.sc small{display:block;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.06em}.sc b{font-size:20px;color:var(--navy)}
.btn{font:inherit;font-weight:700;font-size:15px;border:0;border-radius:999px;padding:10px 20px;background:var(--teal);color:#fff;cursor:pointer;min-height:42px}.btn:hover{background:var(--teald)}.btn.alt{background:#fff;color:var(--navy);border:1.5px solid var(--navy)}.btn.on{background:var(--navy)}
.msg{min-height:26px;text-align:center;font-weight:700;color:var(--navy);margin:8px 0}
canvas{display:block;margin:0 auto;background:#fff;border:2px solid var(--navy);border-radius:14px;touch-action:none;max-width:100%}
.box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:0 10px 26px rgba(18,48,79,.08)}
.dpad{display:grid;grid-template-columns:repeat(3,64px);gap:8px;justify-content:center;margin-top:12px}.dpad button{height:56px;border-radius:14px;border:1.5px solid var(--navy);background:#fff;font-size:22px;color:var(--navy);cursor:pointer}.dpad .e{visibility:hidden}
footer{text-align:center;color:var(--muted);font-size:13px;padding:18px}footer a{color:var(--teal)}
.tip{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
/* 2048 */
#b48{position:relative;background:#B8C9C2;border-radius:14px;padding:10px;display:grid;grid-template-columns:repeat(4,1fr);gap:10px;aspect-ratio:1;touch-action:none;user-select:none}
.t{border-radius:10px;background:#CFE0D9;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:clamp(20px,6vw,34px);color:#fff;transition:transform .08s}
.t.v2{background:#E6F4EF;color:#12304F}.t.v4{background:#C8E8DD;color:#12304F}.t.v8{background:#5FB89C}.t.v16{background:#2E9477}.t.v32{background:#1E7A66}.t.v64{background:#16604F}.t.v128{background:#F5B841;color:#2A1D00;font-size:clamp(18px,5vw,28px)}.t.v256{background:#E8A92E;color:#2A1D00;font-size:clamp(18px,5vw,28px)}.t.v512{background:#D4871A;font-size:clamp(18px,5vw,28px)}.t.v1024,.t.v2048{background:#12304F;font-size:clamp(15px,4.4vw,24px)}
.t.new{animation:pop .15s}@keyframes pop{from{transform:scale(.6)}to{transform:scale(1)}}
/* memory */
.mg{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.mc{aspect-ratio:3/4;perspective:600px;cursor:pointer;border:0;background:none;padding:0}
.mc div{position:relative;width:100%;height:100%;transition:transform .35s;transform-style:preserve-3d}.mc.f div{transform:rotateY(180deg)}
.mc span{position:absolute;inset:0;border-radius:12px;display:flex;align-items:center;justify-content:center;backface-visibility:hidden;padding:4px;text-align:center;font-weight:700;font-size:clamp(11px,3vw,15px);line-height:1.2}
.mc .a{background:linear-gradient(135deg,var(--navy),var(--teal));color:var(--gold);font-size:26px}.mc .b{background:#fff;border:2px solid var(--teal);color:var(--navy);transform:rotateY(180deg)}.mc.m .b{background:#DDF3EA;border-color:#2E9477}
/* sudoku */
.sg{display:grid;grid-template-columns:repeat(9,1fr);border:3px solid var(--navy);border-radius:8px;overflow:hidden;background:#fff;aspect-ratio:1;direction:ltr}
.sg button{border:0;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;font:700 clamp(16px,4.6vw,24px) inherit;color:var(--teal);cursor:pointer;padding:0}
.sg button:nth-child(3n){border-right:2px solid var(--navy)}.sg button:nth-child(9n){border-right:0}.sg button:nth-child(n+19):nth-child(-n+27),.sg button:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid var(--navy)}
.sg .g{color:var(--navy);background:#F3F8F6}.sg .s{background:#FFF3C9}.sg .h{background:#E9F4F0}.sg .x{color:#C0392B}.sg .s.g{background:#FFE9A3}
.np{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:12px}.np button{height:48px;border-radius:12px;border:1.5px solid var(--navy);background:#fff;font:700 20px inherit;color:var(--navy);cursor:pointer}
/* wordle */
.wg{display:grid;gap:6px;justify-content:center;margin:10px 0;direction:ltr}.wr{display:flex;gap:6px;justify-content:center}.wc{width:clamp(44px,13vw,58px);height:clamp(44px,13vw,58px);border:2px solid var(--line);border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:26px;background:#fff;text-transform:uppercase;color:var(--navy)}
.wc.f{border-color:var(--navy)}.wc.c{background:#2E9477;border-color:#2E9477;color:#fff}.wc.p{background:#E8A92E;border-color:#E8A92E;color:#fff}.wc.n{background:#7A8794;border-color:#7A8794;color:#fff}
.kb{display:flex;flex-direction:column;gap:6px;align-items:center;direction:ltr}.kr{display:flex;gap:5px;justify-content:center;flex-wrap:wrap}.kb button{min-width:clamp(28px,8.4vw,42px);height:46px;border-radius:8px;border:0;background:#DCE6E2;font:700 15px inherit;color:var(--navy);cursor:pointer;padding:0 6px}.kb button.c{background:#2E9477;color:#fff}.kb button.p{background:#E8A92E;color:#fff}.kb button.n{background:#7A8794;color:#fff}.kb .w{min-width:64px}
/* ttt */
.tg{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;aspect-ratio:1;max-width:360px;margin:12px auto}.tg button{border-radius:14px;border:0;background:#fff;box-shadow:0 0 0 2px var(--line) inset;font:800 clamp(40px,14vw,68px) inherit;cursor:pointer}.tg .x{color:var(--navy)}.tg .o{color:var(--teal)}.tg .w{background:#FFF3C9}
/* mines */
.mn{display:grid;grid-template-columns:repeat(9,1fr);gap:3px;background:#B8C9C2;padding:5px;border-radius:12px;direction:ltr;user-select:none}.mn button{aspect-ratio:1;border:0;border-radius:6px;background:linear-gradient(#EAF3F0,#CFE0D9);font:800 clamp(14px,4vw,20px) inherit;padding:0;cursor:pointer}.mn .o{background:#fff;cursor:default}.mn .b{background:#F2B8B0}
.n1{color:#1F6FD1}.n2{color:#2E8B57}.n3{color:#D22}.n4{color:#12304F}.n5{color:#8A2BE2}.n6{color:#0AA}.n7{color:#000}.n8{color:#777}
/* price */
.pq{text-align:center}.pq .it{font-size:64px}.pq h2{margin:6px 0;color:var(--navy);font-size:22px}.po{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.po button{padding:14px;border-radius:14px;border:2px solid var(--line);background:#fff;font:700 18px inherit;color:var(--navy);cursor:pointer}.po button.ok{background:#DDF3EA;border-color:#2E9477}.po button.no{background:#FBE3E0;border-color:#C0392B}
.prog{height:8px;background:var(--line);border-radius:99px;overflow:hidden;margin:10px 0}.prog i{display:block;height:100%;background:var(--teal);transition:width .2s}

[dir=rtl] .wg,[dir=rtl] .wr,[dir=rtl] .kb{direction:rtl}.kb button{min-width:clamp(24px,7.4vw,38px);padding:0 3px}.kb .kr{gap:4px}.kb .w{min-width:54px}
/* accounting games */
.acc{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.acc button,.opts button{font:inherit;font-weight:600;font-size:15px;padding:13px 10px;border-radius:14px;border:2px solid var(--line);background:#fff;color:var(--navy);cursor:pointer;min-height:48px;text-align:center}
.acc button:hover,.opts button:hover{border-color:var(--teal)}
.acc button.d{border-color:var(--navy);background:#E9F0FA}.acc button.ok,.opts button.ok{border-color:#2E9477;background:#DDF3EA}.acc button.bad,.opts button.bad{border-color:#C0392B;background:#FBE4E1}
.opts{display:grid;gap:10px;margin-top:12px}.opts button{text-align:start;line-height:1.35}
.scn{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;text-align:center;font-size:18px;font-weight:700;color:var(--navy);min-height:70px;display:flex;align-items:center;justify-content:center}
.step{text-align:center;color:var(--muted);font-weight:600;margin:10px 0 0;min-height:22px}
.tbl{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;font-size:14px;direction:ltr}.tbl th,.tbl td{padding:7px 10px;border-bottom:1px solid var(--line)}.tbl th{background:var(--navy);color:#fff;text-align:start}.tbl td.n,.tbl th.n{text-align:right;font-variant-numeric:tabular-nums}
.tbl tr.tot td{font-weight:800;background:#F3F8F6}.tbl tr.df td{font-weight:800;color:#C0392B;background:#FBE4E1}
[dir=rtl] .tbl th:first-child,[dir=rtl] .tbl td:first-child{text-align:right;direction:rtl}
.note{background:#FFF7DD;border:1px solid #F0D98A;border-radius:12px;padding:10px 14px;margin:12px 0;font-size:14px}
.exp{background:#E9F4F0;border:1px solid #BFDCD1;border-radius:12px;padding:10px 14px;margin:10px 0;font-size:14px}
.inv{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:6px;align-items:center;width:100%;border:2px solid var(--line);border-radius:12px;background:#fff;padding:9px 10px;font:inherit;font-size:13px;color:var(--ink);cursor:pointer;text-align:start;margin-bottom:6px}
.inv.on{border-color:var(--navy);background:#E9F0FA}.inv.ok{border-color:#2E9477;background:#DDF3EA}.inv.bad{border-color:#C0392B;background:#FBE4E1}.inv.miss{border-color:#E8A92E;background:#FFF3C9}
.inv span{overflow:hidden;text-overflow:ellipsis}.inv .a{text-align:end;font-weight:700;font-variant-numeric:tabular-nums;direction:ltr}.invh{font-size:11px;color:var(--muted);text-transform:uppercase;padding:0 12px}
.je{width:100%;border-collapse:collapse;margin:10px 0;direction:ltr}.je td{padding:4px}.je select,.je input{font:inherit;font-size:14px;width:100%;padding:9px 6px;border:1.5px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);min-height:42px}.je input{text-align:right}.je th{font-size:12px;color:var(--muted);text-align:start}
[dir=rtl] .je select{direction:rtl}
.br{display:grid;gap:8px}.bi{background:#fff;border:1.5px solid var(--line);border-radius:14px;padding:10px 12px}.bi p{margin:0 0 8px;font-weight:600;color:var(--navy);font-size:14px}.bi div{display:flex;gap:8px;flex-wrap:wrap}.bi button{flex:1;min-width:130px;font:inherit;font-size:13px;font-weight:600;padding:9px 8px;border-radius:10px;border:1.5px solid var(--navy);background:#fff;color:var(--navy);cursor:pointer;min-height:40px}
.bi.done{background:#DDF3EA;border-color:#2E9477}.bi.wrong{animation:shk .3s}@keyframes shk{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.rb{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0}.rb div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;text-align:center}.rb small{display:block;color:var(--muted);font-size:12px}.rb b{font-size:20px;color:var(--navy);direction:ltr;display:inline-block}.rb .z{grid-column:1/-1;font-weight:800}.rb .z.ok{background:#DDF3EA;border-color:#2E9477}
.fm{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin:10px 0;font-size:15px;line-height:1.7;direction:ltr;text-align:start}[dir=rtl] .fm{direction:rtl}
.hdg{margin:26px 0 12px;font-size:20px;color:var(--navy)}