/* سودوكو — own look. 🎨 كارتون (default) = mint notebook, ink outlines · 🎯 عادي = dark forest, calm paper grid */
:root{--bg:#0d1b14;--bg2:#1b3a2a;--ink:#eef7f0;--muted:#a3c4b0;--card:#132a1f;--line:#2b5240;--acc:#80ed99;--acc2:#2b7a4b;--field:#0a1510;
  --paper:#f4f1e8;--paper2:#e9e4d6;--gridline:#c9c2ad;--thick:#3d3a2e;--given:#1f2a24;--mine:#1b6fd1;--wrong:#d62828;--peer:#e2ecd9;--same:#c6e7b8;--sel:#ffd166;--glow:#80ed99;color-scheme:dark;font-family:"Segoe UI",Tahoma,system-ui,sans-serif}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;overflow-x:hidden;color:var(--ink)}
body{min-height:100vh;user-select:none;background:radial-gradient(110% 70% at 50% 0,var(--bg2),var(--bg) 70%) fixed,var(--bg)}
.page{width:min(100%,620px);margin:auto;padding:max(10px,env(safe-area-inset-top)) 12px max(24px,env(safe-area-inset-bottom))}
.topline{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}
.topline .brand-line{margin:0;min-width:0}
.icon{flex:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--ink);font-size:17px;cursor:pointer}
.theme-switch{display:flex;width:max-content;margin:0 auto 14px;padding:4px;gap:4px;border:1px solid var(--line);border-radius:999px;background:var(--card)}
.theme-switch button{border:0;border-radius:999px;padding:8px 16px;background:transparent;color:var(--muted);font:inherit;font-size:15px;font-weight:800;cursor:pointer}
.theme-switch button[aria-pressed="true"]{background:linear-gradient(180deg,#f6dc95,var(--acc));color:#1b2a14}
.sinan-credit{margin:18px auto 0;text-align:center;color:var(--muted);font-size:11px;letter-spacing:1.5px;font-weight:800}
.sinan-credit b{color:var(--acc);font-size:14px}
[hidden]{display:none!important}

/* home */
.hero{display:flex;align-items:center;gap:14px;margin:0 0 14px;padding:14px 16px;border:1px solid #80ed9955;border-radius:22px;background:linear-gradient(135deg,#2b9348,#0f3b24);box-shadow:0 12px 28px #0006}
.hero h1{margin:0;font-size:34px;line-height:1.1;color:#fff}
.hero p{margin:4px 0 0;color:#d8f3dc;font-size:14px;font-weight:700}
.hero-grid{display:grid;grid-template-columns:repeat(3,22px);gap:2px;flex:none;padding:4px;border-radius:10px;background:var(--thick);transform:rotate(-6deg)}
.hero-grid i{display:grid;place-items:center;height:22px;background:var(--paper);color:var(--given);font-style:normal;font-weight:800;font-size:14px;border-radius:3px}
.card{padding:14px;border:1px solid var(--line);border-radius:20px;background:var(--card);box-shadow:0 12px 26px #0005;margin:12px 0}
.daily{display:flex;flex-direction:column;align-items:flex-start;gap:2px;width:100%;padding:16px;border:0;border-radius:20px;background:linear-gradient(135deg,#f9c74f,#f3722c);color:#2b1405;font:inherit;text-align:right;cursor:pointer;box-shadow:0 6px 0 #00000055}
.daily b{font-size:22px}.daily small{font-size:14px;font-weight:700;opacity:.85}
.levels{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:10px}
.lvl{display:flex;flex-direction:column;align-items:center;gap:2px;padding:14px 6px;border:0;border-radius:18px;color:#fff;font:inherit;cursor:pointer;box-shadow:0 5px 0 #00000055}
.lvl b{font-size:18px}.lvl small{font-size:12px;font-weight:700;opacity:.9}
.lvl.easy{background:#2b9348}.lvl.mid{background:#1d6fd1}.lvl.hard{background:#c1121f}
.lvl:active,.daily:active{transform:translateY(3px);box-shadow:0 2px 0 #00000055}
.best h3{margin:0 0 8px;font-size:17px}
.bests{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.bests div{display:flex;justify-content:space-between;padding:8px 10px;border-radius:12px;background:var(--field);font-weight:700}
.bests b{color:var(--acc);font-variant-numeric:tabular-nums}
.btn{display:block;width:100%;margin-top:10px;padding:14px;border:1px solid var(--line);border-radius:16px;background:transparent;color:var(--ink);font:inherit;font-size:17px;font-weight:800;cursor:pointer}
.btn.main{border:0;background:linear-gradient(180deg,#b7f7c4,var(--acc));color:#08301a;box-shadow:0 5px 0 var(--acc2)}

/* game */
.bar{display:flex;justify-content:space-between;gap:6px;margin-bottom:10px}
.pill{padding:7px 12px;border:1px solid var(--line);border-radius:999px;background:var(--card);font-weight:800;font-size:14px;white-space:nowrap}
.pill b{font-variant-numeric:tabular-nums}
.grid{display:grid;grid-template-columns:repeat(9,1fr);width:100%;aspect-ratio:1;border:3px solid var(--thick);border-radius:12px;overflow:hidden;background:var(--paper);box-shadow:0 14px 30px #0008;container-type:inline-size}
.c{position:relative;display:grid;place-items:center;padding:0;border:0;border-right:1px solid var(--gridline);border-bottom:1px solid var(--gridline);background:var(--paper);color:var(--given);font:inherit;cursor:pointer;aspect-ratio:1}
.c:nth-child(9n){border-right:0}
.c.br{border-right:2.5px solid var(--thick)}.c.bb{border-bottom:2.5px solid var(--thick)}
.c b{font-size:6.2cqw;line-height:1;font-weight:800}
.c.mine b{color:var(--mine)}
.c.wrong{background:#ffd6d6}.c.wrong b{color:var(--wrong)}
.c.peer{background:var(--peer)}
.c.same{background:var(--same)}
.c.sel{background:var(--sel)}
.c.flash{animation:flash .6s ease}
@keyframes flash{40%{background:#b7f7c4;transform:scale(1.06)}}
.nt{display:grid;grid-template-columns:repeat(3,1fr);width:100%;height:100%;padding:6%}
.nt i{display:grid;place-items:center;font-style:normal;font-size:2.4cqw;font-weight:700;color:#6b705c;line-height:1}
.tools{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:12px 0 8px}
.tool{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 2px;border:1px solid var(--line);border-radius:14px;background:var(--card);color:var(--ink);font:inherit;font-size:12.5px;font-weight:800;cursor:pointer}
.tool i{font-style:normal;font-size:20px}
.tool[aria-pressed="true"]{background:var(--acc);color:#08301a;border-color:transparent}
.pad{display:grid;grid-template-columns:repeat(9,1fr);gap:5px}
.pad button{display:flex;flex-direction:column;align-items:center;padding:8px 0 4px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--ink);font:inherit;cursor:pointer}
.pad b{font-size:26px;line-height:1.1}
.pad small{min-height:14px;font-size:11px;color:var(--muted);font-weight:700}
.pad button.full{opacity:.3}
.pad button:active{transform:translateY(2px)}
.rules{margin-top:14px;padding:10px 14px;border:1px solid var(--line);border-radius:16px;background:var(--card)}
.rules summary{font-weight:800;cursor:pointer}
.rules p{margin:8px 0 2px;line-height:1.7;color:var(--muted);font-weight:600}

/* toast + modal */
.toast{position:fixed;z-index:30;left:50%;top:max(16px,env(safe-area-inset-top));transform:translateX(-50%);width:max-content;max-width:92vw;padding:12px 18px;border-radius:16px;background:#000c;color:#fff;font-weight:800;text-align:center;box-shadow:0 10px 26px #0008}
.toast.on{animation:drop .35s ease}
@keyframes drop{0%{transform:translate(-50%,-30px);opacity:0}100%{transform:translate(-50%,0);opacity:1}}
.overlay{position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:16px;background:#04100acc;backdrop-filter:blur(4px)}
.modal{width:min(100%,380px);padding:20px;border-radius:24px;background:linear-gradient(180deg,#2b9348,#0f3b24);border:1px solid #80ed9966;text-align:center;box-shadow:0 20px 60px #000a;animation:pop .4s ease}
@keyframes pop{0%{transform:scale(.7);opacity:0}100%{transform:none;opacity:1}}
.modal .big{font-size:58px}
.modal h2{margin:4px 0}
.modal p{font-weight:800;color:#fff;font-size:17px}

/* 🎨 كارتون */
body.kids{--bg:#c7f9cc;--bg2:#effff1;--ink:#123524;--muted:#3c6e51;--card:#fff;--line:#123524;--acc:#38b000;--acc2:#123524;--field:#f1fff3;
  --paper:#ffffff;--paper2:#f6fff7;--gridline:#cfe3d4;--thick:#123524;--given:#123524;--mine:#3a86ff;--wrong:#e63946;--peer:#e9fbe9;--same:#b9f6ca;--sel:#ffe066;
  color-scheme:light;font-family:"Baloo Bhaijaan 2","Segoe UI",Tahoma,system-ui,sans-serif}
body.kids{background:linear-gradient(#12352410 1px,transparent 1px) 0 0/22px 22px,linear-gradient(90deg,#12352410 1px,transparent 1px) 0 0/22px 22px,linear-gradient(180deg,var(--bg2),var(--bg)) fixed}
body.kids .icon,body.kids .theme-switch,body.kids .pill,body.kids .tool,body.kids .rules{border:2px solid var(--line);box-shadow:3px 3px 0 var(--line)}
body.kids .theme-switch button[aria-pressed="true"]{background:#ffb703;color:var(--ink)}
body.kids .hero{border:3px solid var(--line);background:linear-gradient(135deg,#55a630,#2b9348);box-shadow:5px 5px 0 var(--line)}
body.kids .hero h1{text-shadow:2px 2px 0 var(--line),-1px -1px 0 var(--line),1px -1px 0 var(--line),-1px 1px 0 var(--line)}
body.kids .hero p{color:#fff;text-shadow:1px 1px 0 var(--line)}
body.kids .hero-grid{border:2px solid var(--line)}
body.kids .card{border:3px solid var(--line);box-shadow:5px 5px 0 var(--line)}
body.kids .daily,body.kids .lvl{border:3px solid var(--line);box-shadow:0 5px 0 var(--line)}
body.kids .lvl{text-shadow:1px 1px 0 var(--line)}
body.kids .lvl.easy{background:#70e000}body.kids .lvl.mid{background:#4cc9f0}body.kids .lvl.hard{background:#ff5d8f}
body.kids .bests div{border:2px solid var(--line)}
body.kids .bests b{color:#2b9348}
body.kids .btn{border:3px solid var(--line);background:#fff}
body.kids .btn.main{background:#ffb703;color:var(--ink);box-shadow:0 5px 0 var(--line)}
body.kids .grid{border:3.5px solid var(--line);box-shadow:6px 6px 0 var(--line)}
body.kids .c b{font-weight:800}
body.kids .pad button{border:2px solid var(--line);box-shadow:0 3px 0 var(--line);background:#fff}
body.kids .pad b{color:#2b9348}
body.kids .tool[aria-pressed="true"]{background:#ffb703;color:var(--ink)}
body.kids .toast{background:#fff;color:var(--ink);border:3px solid var(--line);box-shadow:4px 4px 0 var(--line)}
body.kids .overlay{background:#12352499}
body.kids .modal{border:3px solid var(--line);background:#fffaf0;box-shadow:6px 6px 0 var(--line)}
body.kids .modal p{color:#2b9348}
body.kids .sinan-credit b{color:#2b9348}