:root{--bg:#11141d;--s1:#1a1f2c;--s2:#232a3a;--ln:#2e3649;--tx:#e9ecf5;--mu:#8d96ab;--ac:#8aa4ff;--ok:#5fd3a0;--no:#ff7d8d;--r:16px;
  font:500 16px/1.45 ui-rounded,"SF Pro Rounded",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color-scheme:dark}
*{box-sizing:border-box}[hidden]{display:none!important}
body{margin:0;background:var(--bg);color:var(--tx);min-height:100dvh;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
header{display:flex;align-items:center;gap:12px;padding:14px 16px;max-width:760px;margin:0 auto}
header h1{flex:1;margin:0;font-size:1.15rem;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.logo{flex:1;font-size:1.35rem;font-weight:800;letter-spacing:-.02em;color:var(--ac)}.who{color:var(--mu);font-size:.9rem}
main{max-width:760px;margin:0 auto;padding:4px 16px 48px;display:flex;flex-direction:column;gap:14px}
h2{margin:8px 0 0;font-size:1.05rem}.hello{font-size:1.6rem;letter-spacing:-.02em;margin:6px 0 4px}
a{color:var(--ac)}small,.info,.hint{color:var(--mu);font-size:.88rem;margin:0}.empty{color:var(--mu);padding:24px 0}
.err{color:var(--no);margin:0}.ok{color:var(--ok);margin:0}
button,input,select,textarea{font:inherit;color:inherit}
input:not([type=checkbox]),textarea,select{width:100%;background:var(--bg);border:1.5px solid var(--ln);border-radius:12px;padding:12px 14px}
select{width:auto;padding:6px 10px}textarea{resize:vertical}
:focus-visible{outline:3px solid var(--ac);outline-offset:2px}input:focus,textarea:focus{outline:none;border-color:var(--ac)}
.btn,.ghost,.ib,.rb{border:0;border-radius:12px;cursor:pointer;font-weight:700}
.btn{background:var(--ac);color:#0c1330;padding:13px 18px}.btn:active{transform:scale(.98)}
.ghost{background:var(--s2);padding:10px 14px;text-decoration:none;color:var(--tx);text-align:center}
.ib{width:44px;height:44px;background:var(--s2);font-size:1.3rem;display:grid;place-items:center;text-decoration:none;color:var(--tx)}.ib.on{color:#ffd166}
.card{background:var(--s1);border:1px solid var(--ln);border-radius:var(--r);padding:18px;display:flex;flex-direction:column;gap:12px}
.auth{max-width:380px;margin:8vh auto 0;width:100%}.auth a{text-align:center}
.tiles{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.tile{display:flex;flex-direction:column;gap:4px;padding:18px;border-radius:var(--r);background:var(--s1);border:1px solid var(--ln);text-decoration:none;color:var(--tx);min-height:104px}
.tile b{font-size:1.1rem}.tile span{color:var(--mu);font-size:.9rem}.tile em{font-style:normal;font-size:.82rem;color:var(--ac);margin-top:auto}
.tile:hover{border-color:var(--ac)}.tile.off{opacity:.55}.tile.hard{background:var(--s2)}.tile.adm{border-style:dashed}
.seg{display:grid;grid-template-columns:1fr 1fr;background:var(--s1);border-radius:14px;padding:4px;gap:4px}
.seg button{border:0;background:none;border-radius:10px;padding:10px;font-weight:700;color:var(--mu);cursor:pointer}.seg .on{background:var(--s2);color:var(--tx)}
.opts{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;color:var(--mu);font-size:.92rem}
.sw{display:flex;align-items:center;gap:10px;cursor:pointer}.sw input{position:absolute;opacity:0}
.sw i{width:40px;height:24px;border-radius:12px;background:var(--ln);position:relative;transition:background .15s;flex:none}
.sw i::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:var(--tx);transition:transform .15s}
.sw input:checked+i{background:var(--ac)}.sw input:checked+i::after{transform:translateX(16px)}.sw input:focus-visible+i{outline:3px solid var(--ac);outline-offset:2px}
.study{display:flex;flex-direction:column;gap:14px;align-items:stretch}.study .info,.study .hint{text-align:center}
.flash{perspective:1000px;height:min(52vh,320px);position:relative;cursor:pointer;touch-action:pan-y;user-select:none}
.face{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:24px;font-size:clamp(1.5rem,6vw,2.1rem);font-weight:700;background:var(--s1);border:1px solid var(--ln);border-radius:20px;backface-visibility:hidden;transition:transform .35s}
.face.bk{background:var(--s2);transform:rotateY(180deg)}.flip .face{transform:rotateY(180deg)}.flip .face.bk{transform:rotateY(360deg)}
.row{display:flex;gap:14px;align-items:center;justify-content:center}.row.sp{justify-content:space-between}
.rb{width:68px;height:68px;border-radius:50%;font-size:1.6rem;background:var(--s2)}.rb.yes{color:var(--ok)}.rb.no{color:var(--no)}
.ask .word{margin:4px 0;font-size:clamp(1.6rem,6vw,2.2rem);text-align:center}.verdict{margin:0;text-align:center;min-height:1.5em;font-weight:700}
.good{color:var(--ok)}.bad{color:var(--no)}.done{text-align:center;align-items:center}
.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{display:flex;align-items:center;gap:6px;background:var(--s2);padding:6px 12px;border-radius:20px;font-size:.9rem}
.urow b{font-size:1.05rem}.logs{gap:6px}.lg{display:grid;grid-template-columns:1fr 1fr 1.4fr;gap:8px;font-size:.85rem;color:var(--mu)}.lg.bad span:first-child{color:var(--no)}
#toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translate(-50%,20px);background:var(--s2);border:1px solid var(--ln);padding:12px 18px;border-radius:12px;opacity:0;pointer-events:none;transition:.2s;max-width:90vw}
#toast.on{opacity:1;transform:translate(-50%,0)}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.tabs{display:flex;gap:6px;overflow-x:auto;background:var(--s1);padding:4px;border-radius:14px}
.tabs a{flex:1;text-align:center;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--mu);font-weight:700;white-space:nowrap}.tabs a.on{background:var(--s2);color:var(--tx)}
.tilt{position:relative;touch-action:pan-y;user-select:none;transition:transform .22s ease-out}.tilt.drag{transition:none}
.stamp{position:absolute;top:18px;z-index:2;padding:4px 12px;border:3px solid;border-radius:10px;font-weight:800;letter-spacing:.05em;opacity:0;pointer-events:none}
.stamp.y{left:18px;color:var(--ok);transform:rotate(-8deg)}.stamp.n{right:18px;color:var(--no);transform:rotate(8deg)}
.wl{display:grid;gap:6px;width:100%;text-align:left}.wi{display:flex;justify-content:space-between;gap:12px;padding:8px 12px;background:var(--s2);border-radius:10px}.wi span{color:var(--mu)}
.wrow{display:grid;grid-template-columns:1fr 1fr auto auto;gap:6px}
@media(max-width:520px){.wrow{grid-template-columns:1fr 1fr}.wrow .ib{width:100%}}

.qbox{display:flex;flex-direction:column;gap:10px}.qtext{font-size:1.1rem;font-weight:700;margin:0;white-space:pre-wrap}
.qimg{max-width:100%;max-height:260px;object-fit:contain;border-radius:12px;align-self:center;background:#fff}
.opt{display:flex;gap:10px;text-align:left;width:100%;padding:12px 14px;border-radius:12px;border:1.5px solid var(--ln);background:var(--s1);cursor:pointer}
.opt.sel{border-color:var(--ac);background:var(--s2)}.opt.good{border-color:var(--ok);background:#173a2c}
.expl{background:var(--s2);padding:10px 12px;border-radius:10px;margin:0}
.hrow{flex-direction:row;align-items:center;justify-content:space-between;text-decoration:none;color:var(--tx)}.hrow b{font-size:1.3rem}
.nr{width:80px}.qs{overflow:hidden;text-overflow:ellipsis}
.drop{border:2px dashed var(--ln);border-radius:14px;padding:22px;text-align:center;color:var(--mu);cursor:pointer}.drop.on{border-color:var(--ac);background:var(--s2)}

.lab{display:grid;gap:4px;color:var(--mu);font-size:.9rem}
.sk{display:grid;gap:12px;grid-template-columns:1fr;grid-template-areas:"top" "paper" "tools" "chat" "pls"}
.sk-top{grid-area:top;display:flex;gap:12px;align-items:center;flex-wrap:wrap}.paper{grid-area:paper;position:relative}.tools{grid-area:tools}.pls{grid-area:pls}.chatbox{grid-area:chat}
.wordbar{flex:1;text-align:center;font-size:1.5rem;font-weight:800;letter-spacing:.25em;white-space:pre;order:5;flex-basis:100%}.tmr{font-size:1.3rem;font-weight:800;margin-left:auto}
.cv{width:100%;height:auto;display:block;background:#fff;border-radius:12px;touch-action:none}.cv.draw{cursor:crosshair}
.ov{position:absolute;inset:0;background:rgba(17,20,29,.94);border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:16px;text-align:center;overflow:auto}
.bigcode{font-size:3.2rem;font-weight:800;letter-spacing:.3em;color:var(--ac)}.choices{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.sc{display:flex;justify-content:space-between;gap:16px;min-width:240px;padding:8px 12px;background:var(--s2);border-radius:10px}.sc i{color:var(--ok);font-style:normal}
.tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:center}.colors{display:flex;gap:5px;flex-wrap:wrap;justify-content:center}
.csw{width:30px;height:30px;border-radius:50%;border:3px solid #fff3;cursor:pointer;padding:0}.csw.on{border-color:#fff;transform:scale(1.15)}
.pls{display:flex;flex-direction:column;gap:6px}.pl{display:flex;align-items:center;gap:8px;padding:8px 10px;background:var(--s1);border:1px solid var(--ln);border-radius:10px}.pl.g{background:#173a2c}.pl.off{opacity:.45}.pl .nm{flex:1}.pl small{display:block}.pl .x{background:none;border:0;color:var(--no);font-size:1.1rem;cursor:pointer}
.chatbox{display:flex;flex-direction:column;gap:8px}.chat{height:200px;overflow:auto;display:flex;flex-direction:column;gap:3px;background:var(--s1);border:1px solid var(--ln);border-radius:12px;padding:10px;font-size:.92rem;word-break:break-word}
.chat .s{color:var(--mu)}.chat .ok{color:var(--ok);font-weight:700}.chat .g{color:var(--ok)}
@media(min-width:900px){main:has(.sk){max-width:1100px}.sk{grid-template-columns:190px 1fr 250px;grid-template-areas:"top top top" "pls paper chat" "pls tools chat"}.chat{height:420px}.wordbar{order:0;flex-basis:auto}}

.crow{flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px;text-decoration:none;color:var(--tx)}.crow small{flex-basis:100%;color:var(--mu);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{background:var(--ac);color:#0c1330;border-radius:12px;padding:0 8px;font-style:normal;font-weight:800;margin-left:auto}
.msgs{display:flex;flex-direction:column;gap:8px;height:55vh;overflow:auto;padding:4px}
.msg{max-width:85%;background:var(--s1);border:1px solid var(--ln);border-radius:14px;padding:8px 12px;align-self:flex-start}.msg.me{align-self:flex-end;background:var(--s2)}
.msg p{margin:2px 0 0;white-space:pre-wrap;word-break:break-word}.msg small{color:var(--mu)}.row>input{flex:1;min-width:0}

.fimg{max-width:100%;max-height:240px;border-radius:10px;display:block;margin:4px 0;background:#fff}.file a{color:var(--ac);word-break:break-all}

/* --- poprawki układu: ekran nauki, telefon, Skribbl, czat --- */
.opts{display:grid;gap:12px}.opts .sw{width:100%}.sw span{flex:1;min-width:0}.opts .sel{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.dekeys{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}.dekeys button{min-width:46px;padding:10px 0;font-size:1.15rem}.ask input[hidden]~.dekeys{display:none}
.tile{position:relative}.dot{position:absolute;top:10px;right:10px;min-width:24px;height:24px;padding:0 7px;border-radius:12px;background:var(--no);color:#2a0a10;font-style:normal;font-weight:800;font-size:.8rem;display:grid;place-items:center;animation:pulse 2.8s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1);box-shadow:0 0 0 0 rgba(255,125,141,.45)}50%{transform:scale(1.07);box-shadow:0 0 0 7px rgba(255,125,141,0)}}
@media(prefers-reduced-motion:reduce){.dot{animation:none}}
.msg{position:relative}.dots{position:absolute;top:0;right:4px;background:none;border:0;color:var(--mu);font-size:1.3rem;cursor:pointer;padding:2px 10px}.msg.me small:first-child{padding-right:34px}
.menu{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}.menu button{background:var(--s1);border:1px solid var(--ln);border-radius:10px;padding:8px 12px;cursor:pointer}
.gone{color:var(--mu);font-style:italic}.ed{display:block;font-size:.75rem}.ein{margin-top:4px}
.emo{display:flex;flex-wrap:wrap;gap:2px;background:var(--s1);border:1px solid var(--ln);border-radius:12px;padding:8px;max-height:150px;overflow:auto}.emo button{background:none;border:0;font-size:1.5rem;cursor:pointer;padding:5px}
@media(max-width:600px){
 main{padding:4px 12px 40px}header{padding:12px}.tiles{grid-template-columns:1fr 1fr;gap:10px}.tile{min-height:92px;padding:14px}.card{padding:14px}
 .face{padding:16px}.tabs a{padding:10px 8px;font-size:.88rem}.msgs{height:50vh}.msg{max-width:92%}
 .paper{touch-action:none;overscroll-behavior:contain}.csw{width:34px;height:34px}.sk .tools .ghost{padding:8px 12px}
 .bigcode{font-size:2.4rem}.ov{padding:10px;gap:8px}.ov h2{font-size:1.2rem}.wordbar{font-size:1.2rem;letter-spacing:.15em}.choices .btn{flex:1 1 100%}.chat{height:150px}.sc{min-width:0;width:100%}
}

.logo{display:flex;align-items:center;gap:8px}.lm{width:26px;height:26px;border-radius:7px}.who{text-decoration:none}
.homelogo{position:fixed;top:calc(10px + env(safe-area-inset-top));right:10px;width:38px;height:38px;border-radius:11px;opacity:.5;z-index:30;transition:opacity .15s}
.homelogo img{width:100%;height:100%;border-radius:11px;display:block}.homelogo:hover,.homelogo:focus-visible,.homelogo:active{opacity:1}
body:has(.homelogo) header .who{margin-right:50px}
#call{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(16px + env(safe-area-inset-bottom));z-index:60;width:min(92vw,420px);background:var(--s2);border:1px solid var(--ln);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:8px;box-shadow:0 8px 30px rgba(0,0,0,.5)}
#call .row{justify-content:space-between;flex-wrap:wrap}.btn.red{background:var(--no);color:#2a0a10}

/* --- bez przesuwania na boki, statystyki --- */
html,body{overflow-x:hidden;max-width:100%}
main,.card,.tiles,.tile,.sk,.sk>*,.msg,.row,.urow,.wrow,.opts,.seg,.tabs{min-width:0}main>*{max-width:100%}
img,canvas,video{max-width:100%}.card,.tile,.msg,.lg span,.wi,.qtext,.opt,.sc,.pl .nm{overflow-wrap:anywhere}.wordbar{white-space:pre-wrap;overflow-wrap:anywhere}
.tiles{grid-template-columns:repeat(auto-fill,minmax(min(100%,210px),1fr))}
@media(max-width:600px){.tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.lg{grid-template-columns:1fr;gap:2px}.wrow{grid-template-columns:1fr 1fr}.row{flex-wrap:wrap}.seg button{padding:10px 4px}.hrow{flex-wrap:wrap}
  .statg{grid-template-columns:repeat(2,minmax(0,1fr))}h1{font-size:1.05rem}}
.statg{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.stat{background:var(--s2);border-radius:12px;padding:12px}.stat b{display:block;font-size:1.15rem}
.bars{display:flex;gap:4px;align-items:flex-end;height:120px}.bar{flex:1;min-width:0;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:2px}
.bar i{width:100%;background:var(--ac);border-radius:4px 4px 0 0}.bar small{font-size:.65rem}
.pbar{height:10px;border-radius:6px;background:var(--s2);overflow:hidden;margin:4px 0 8px}.pbar i{display:block;height:100%;background:var(--ok)}.big{font-size:1.1rem}

.srow{display:block;color:var(--tx);text-decoration:none}a.srow:hover .pbar i{background:var(--ac)}

.modal{position:fixed;inset:0;background:rgba(0,0,0,.78);z-index:70;display:flex;align-items:center;justify-content:center;padding:12px}
.mbox{background:var(--s1);border:1px solid var(--ln);border-radius:14px;width:min(96vw,900px);max-height:92vh;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:10px}
.mbox iframe{width:100%;height:75vh;border:0;background:#fff;border-radius:8px}.mbox img,.mbox video{max-width:100%;max-height:75vh;margin:auto;display:block}.mbox audio{width:100%}
.mbox pre{white-space:pre-wrap;overflow-wrap:anywhere;max-height:75vh;overflow:auto;margin:0;font-size:.85rem}
.drow{flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px}.drow .dn{flex:1 1 60%;color:var(--tx);text-decoration:none;font-weight:700;overflow-wrap:anywhere}.drow small{flex-basis:100%;order:3}
.act{width:auto;padding:8px 10px}.crumbs{overflow-wrap:anywhere}.dz{display:flex;flex-direction:column;gap:12px}

.seg{grid-template-columns:repeat(3,1fr)}.col{display:flex;flex-direction:column;gap:14px;min-width:0}.split{display:grid;gap:14px}.rank{align-self:start}.meRow b,.meRow span{color:var(--ac)}
@media(min-width:900px){main:has(.split){max-width:1040px}.split{grid-template-columns:minmax(0,1fr) 280px;align-items:start}}
.bell{position:relative;text-decoration:none;font-size:1.25rem;margin-right:8px;display:inline-flex}
.bell i{position:absolute;top:-6px;right:-9px;background:var(--no);color:#2a0a10;border-radius:10px;min-width:18px;height:18px;padding:0 4px;font-size:.7rem;font-style:normal;font-weight:800;display:grid;place-items:center;animation:pulse 2.8s ease-in-out infinite}
.tk{display:block;text-align:right;font-size:.72rem;color:var(--mu)}.tk.rd{color:var(--ac)}summary{cursor:pointer;font-weight:700}

.face{white-space:pre-line}.qgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.opt.gone{visibility:hidden}
.rb.sm{width:58px;height:58px;font-size:.95rem;font-weight:800;color:var(--ac)}.rb:disabled{opacity:.35;text-decoration:line-through;cursor:not-allowed}
.qfb{gap:8px}.qfb p{margin:0}.ger{font-size:1.05rem;font-weight:700;overflow-wrap:anywhere}.qi{display:flex;flex-direction:column;gap:4px;padding:12px;background:var(--s2);border-radius:12px;border-left:4px solid var(--ac);text-align:left}
.qi mark{background:none;color:var(--ac);font-weight:800}
@media(max-width:600px){.qgrid{grid-template-columns:1fr}.opt.gone{display:none}}