/* aplicatie.css — stiluri proprii lecției „Comparații cu adunare și scădere” (doar variabile de culoare).
   Toate clasele proprii au prefixul cz- / czc- / czd- / czi- / an-, ca să nu se amestece cu edulogia.css. */

/* ---------- metoda figurativă: două segmente aliniate la stânga, diferența colorată, cu acoladă ---------- */
.cz-fig{background:var(--card);color:var(--ink);border-radius:12px;padding:14px 16px 10px;font-weight:800}
.cz-rand{display:flex;align-items:center;gap:12px;padding:6px 0}
.cz-rand.cz-sus{padding-top:40px}
.cz-rand.cz-jos{padding-bottom:40px}
.cz-nume{flex:0 0 6.2em;text-align:right;font-size:calc(17px * var(--fs));line-height:1.1;color:var(--ink);overflow-wrap:anywhere}
.cz-pista{flex:1;display:flex;align-items:center;min-width:0;height:calc(42px * var(--fs))}
.cz-seg{height:100%;box-sizing:border-box;border:3px solid var(--sky);background:var(--sky-tint);position:relative}
.cz-s{border-radius:10px}
.cz-l{border-radius:10px 0 0 10px;border-right:0}
.cz-d{border-radius:0 10px 10px 0;border-color:var(--berry);border-left:3px dashed var(--berry);background:var(--berry-tint)}
.cz-d.cz-dq{background:repeating-linear-gradient(45deg,var(--berry-tint) 0 8px,var(--card) 8px 14px)}
.cz-ac{position:absolute;left:-3px;right:-3px;display:flex;flex-direction:column;align-items:center;pointer-events:none}
.cz-sus .cz-ac{bottom:calc(100% + 3px);flex-direction:column-reverse}
.cz-jos .cz-ac{top:calc(100% + 3px)}
.cz-ac svg{width:100%;height:12px;display:block;fill:none;stroke:var(--berry);stroke-width:2.5}
.cz-ac b{color:var(--berry);font-size:calc(16px * var(--fs));line-height:1.15;white-space:nowrap}
.cz-val{margin-left:10px;word-spacing:.15em;font-family:var(--f-display);font-size:calc(21px * var(--fs));line-height:1;color:var(--ink);white-space:nowrap}
.cz-val.cz-q{border:3px dashed var(--berry);color:var(--berry);border-radius:10px;padding:4px 12px}
.cz-cap{margin:8px 0 0;min-height:1.5em;text-align:center;font-size:calc(18px * var(--fs));color:var(--ink)}
.cz-cap span{display:none}
.cz-cap span.on{display:inline}
.cz-cap b{color:var(--berry)}
/* figura mică (stația 12) */
.cz-mic{padding:6px 12px 6px}
.cz-mic .cz-rand{padding:3px 0;gap:8px}
.cz-mic .cz-rand.cz-sus{padding-top:28px}
.cz-mic .cz-rand.cz-jos{padding-bottom:28px}
.cz-mic .cz-pista{height:calc(24px * var(--fs))}
.cz-mic .cz-nume{flex-basis:3.4em;font-size:calc(14px * var(--fs))}
.cz-mic .cz-val{font-size:calc(16px * var(--fs))}
.cz-mic .cz-val.cz-q{padding:1px 8px;border-width:2px}
.cz-mic .cz-ac b{font-size:calc(13px * var(--fs))}
.cz-mic .cz-ac svg{height:9px}
.cz-mic .cz-cap{margin-top:2px;font-size:calc(15px * var(--fs))}
.cz-trei{display:grid;gap:8px}

/* animația (copertă, stația 1): un singur ceas (js/aplicatie.js) aprinde pașii desenului și textul */
.cz-anim [data-k]{opacity:0;transition:opacity .4s ease,transform .6s ease}
.cz-anim .cz-seg[data-k]{transform:scaleX(0);transform-origin:left center}
.cz-anim [data-k].on{opacity:1;transform:none}
html.a-still .cz-anim [data-k]{opacity:1!important;transform:none!important;transition:none!important}

/* sub desen: calculul în coloană și o notă */
.cz-sub{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:8px;padding-top:8px;border-top:2px dashed var(--line)}
.cz-nota{margin:6px 0 0;font-size:calc(16px * var(--fs));font-weight:800;color:var(--muted);line-height:1.3;text-align:center}
.cz-sub .cz-nota{margin:0;max-width:11em}
.cz-nota b{color:var(--ink)}
.cz-cit{margin:10px 0 0;text-align:center;font-size:calc(17px * var(--fs));color:var(--ink);line-height:1.5}
.cz-hl1{background:var(--sun-tint);border-bottom:3px solid var(--sun);padding:0 4px;border-radius:4px}
.cz-hl2{background:var(--sky-tint);border-bottom:3px solid var(--sky);padding:0 4px;border-radius:4px}

/* ---------- calculul în coloană (școala românească) ----------
   o coloană pe ordin + o coloană pentru semn, la DREAPTA primului număr; linia sub al doilea număr */
.czc{--w:1.1em;display:inline-grid;grid-template-columns:repeat(var(--n),var(--w)) var(--w);
  font-family:var(--f-display);font-weight:800;font-size:calc(40px * var(--fs));line-height:1.1;font-variant-numeric:tabular-nums;color:var(--ink);vertical-align:middle}
.czc>span{display:flex;align-items:center;justify-content:center;box-sizing:border-box;min-width:0}
.czc.czc-mic{font-size:calc(26px * var(--fs))}
.czc-h{font-size:.42em;font-weight:900;padding:2px 0;border-radius:6px 6px 0 0}
.czc-h.czc-o0{color:var(--leaf-deep);background:var(--leaf-tint)}
.czc-h.czc-o1{color:var(--sky);background:var(--sky-tint)}
.czc-h.czc-o2{color:var(--berry);background:var(--berry-tint)}
.czc .czc-h:empty{background:none}
.czc-tr{font-size:.45em;color:var(--berry);height:1.1em;align-items:flex-end!important}
.czc-semn{color:var(--berry)}
.czc-r{border-top:4px solid var(--ink);min-height:1.1em}
.czc .czc-mii{padding-right:.32em}           /* mic spațiu între clasa miilor și clasa unităților */
.cz-colcard{background:var(--card);color:var(--ink);border-radius:12px;padding:14px 16px;font-weight:800;text-align:center}
.cz-doua{display:flex;align-items:center;justify-content:center;gap:28px;flex-wrap:wrap}
.cz-doua .cz-nota{margin-top:2px}

/* ---------- stația 2: cântarul cuvintelor ---------- */
.cz-cant{background:var(--card);color:var(--ink);border-radius:12px;padding:12px 14px;font-weight:800;text-align:center}
.cz-cuv{margin:0;display:flex;justify-content:center}
.cz-cuv-t{display:inline-block;min-width:8em;border:3px solid var(--leaf);background:var(--leaf-tint);color:var(--leaf-deep);border-radius:999px;padding:4px 16px;font-size:calc(20px * var(--fs));transition:background .3s,border-color .3s,color .3s}
.cz-cuv.cz-cuv-d .cz-cuv-t{border-color:var(--berry);background:var(--berry-tint);color:var(--berry)}
.cz-cant svg{display:block;width:100%;max-width:330px;height:auto;margin:2px auto 0;overflow:visible}
.cz-cant svg path{fill:none;stroke:var(--muted);stroke-width:4;stroke-linecap:round}
.cz-cant .cz-bara{stroke:var(--ink);stroke-width:6}
.cz-cant .cz-farf{stroke-width:3}
.cz-cant .cz-f-s{fill:var(--leaf-tint);stroke:var(--leaf)}
.cz-cant .cz-f-d{fill:var(--berry-tint);stroke:var(--berry)}
.cz-ax{fill:var(--sun);stroke:var(--sun-edge);stroke-width:3}
.cz-brat,.cz-tal{transition:transform .6s ease}
.cz-brat{transform-box:view-box;transform-origin:180px 40px}
.cz-jos-s .cz-brat{transform:rotate(-9deg)}
.cz-jos-s .cz-tal-s{transform:rotate(9deg) translate(0,0)}
.cz-jos-d .cz-brat{transform:rotate(9deg)}
.cz-jos-d .cz-tal-d{transform:rotate(-9deg)}
.cz-tal-s{transform-box:view-box;transform-origin:50px 40px}
.cz-tal-d{transform-box:view-box;transform-origin:310px 40px}
.cz-jos-s .cz-tal-d{transform:rotate(9deg)}
.cz-jos-d .cz-tal-s{transform:rotate(-9deg)}
.cz-liste{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:4px}
.cz-lista{display:flex;flex-wrap:wrap;gap:5px;justify-content:center;align-content:flex-start;border-radius:12px;padding:6px}
.cz-lista>b{flex:0 0 100%;font-size:calc(15px * var(--fs))}
.cz-ls{background:var(--leaf-tint)} .cz-ls>b{color:var(--leaf-deep)}
.cz-ld{background:var(--berry-tint)} .cz-ld>b{color:var(--berry)}
.cz-lista span{background:var(--card);border:2px solid var(--line);border-radius:999px;padding:1px 9px;font-size:calc(14px * var(--fs));transition:transform .25s,border-color .25s}
.cz-lista span.on{border-color:var(--ink);transform:scale(1.12)}

/* ---------- stația 9: tabelul „Ce caut?” ---------- */
.cz-caut{background:var(--card);color:var(--ink);border-radius:12px;padding:14px 16px;font-weight:800;display:grid;gap:8px}
.cz-caut-t{margin:0 0 2px;text-align:center;font-size:calc(18px * var(--fs))}
.cz-caut-t b{color:var(--berry)}
.cz-cr{display:grid;grid-template-columns:1fr auto 2.2em 1fr;align-items:center;gap:10px;border-radius:12px;padding:8px 14px;font-size:calc(18px * var(--fs))}
.cz-cr i{font-style:normal;color:var(--muted)}
.cz-cr em{font-style:normal;font-family:var(--f-display);font-size:1.5em;line-height:1;text-align:center;border-radius:10px;background:var(--card);border:3px solid currentColor}
.cz-cr small{font-size:calc(15px * var(--fs));color:var(--muted);text-align:right}
.cz-cr1{background:var(--leaf-tint)} .cz-cr1 em{color:var(--leaf-deep)}
.cz-cr2{background:var(--berry-tint)} .cz-cr2 em{color:var(--berry)}
.cz-cr3{background:var(--sky-tint)} .cz-cr3 em{color:var(--sky)}
.cz-caut-n{margin:4px 0 0;text-align:center;font-size:calc(15px * var(--fs));color:var(--muted)}

/* ---------- planșa vie a laboratoarelor ---------- */
.cz-live{background:var(--card);color:var(--ink);border-radius:12px;min-height:calc(200px * var(--fs));display:flex;flex-direction:column;justify-content:center;font-weight:800}
.cz-live .cz-fig{padding:8px 4px}
.cz-gol{margin:0;text-align:center;color:var(--muted);font-size:calc(18px * var(--fs));line-height:1.5}

/* ---------- laborator: desenează comparația ---------- */
.czd-top{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;font-weight:800;color:var(--muted);font-size:calc(14px * var(--fs))}
.czd-ok{color:var(--leaf-deep)}
.czd-pb{margin:4px 0 8px;font-weight:800;font-size:calc(17px * var(--fs));line-height:1.3;color:var(--ink)}
/* fiecare rând: eticheta și plăcuțele lui, pe aceeași linie, cu aceeași înălțime */
.czd-r{display:flex;align-items:center;gap:10px;margin:0 0 8px}
.czd-et{flex:0 0 7.4em;font-weight:800;font-size:calc(15px * var(--fs));color:var(--muted)}
.czd-ops{display:flex;flex-wrap:wrap;gap:8px;flex:1;min-width:0}
.czd-o{min-height:calc(44px * var(--fs));min-width:calc(84px * var(--fs));padding:4px 12px;display:inline-flex;align-items:center;justify-content:center;
  font:inherit;font-weight:800;font-size:calc(17px * var(--fs));color:var(--ink);background:var(--card);border:3px solid var(--line);border-radius:12px;box-shadow:0 4px 0 var(--line);cursor:pointer;transition:transform .15s}
.czd-o:hover:not(:disabled){transform:translateY(-2px);border-color:var(--sky)}
.czd-o.ales{background:var(--sky);border-color:var(--sky);color:var(--card);box-shadow:0 4px 0 var(--ink);transform:translateY(-2px)}
.czd-o.rau{animation:cz-shake .45s}
.czd-o:disabled{opacity:.55;cursor:default}
.czd-act,.czi-act{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-top:6px;padding-top:8px;border-top:2px dashed var(--line)}
.czd-act .verif,.czi-act .verif{margin-left:auto}
.czd-act .verif:disabled,.czi-act .verif:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

/* ---------- laborator: vânătoarea de capcane ---------- */
.czi-l{display:flex;flex-direction:column;gap:6px}
.czi-c{display:grid;grid-template-columns:1fr auto;align-items:center;column-gap:10px;border:3px solid var(--line);border-radius:12px;padding:3px 8px 3px 12px;background:var(--card)}
.czi-t{margin:0;font-weight:700;font-size:calc(15px * var(--fs));line-height:1.25;color:var(--ink)}
.czi-b{display:flex;gap:6px}
.czi-o{width:calc(46px * var(--fs));height:calc(36px * var(--fs));display:inline-flex;align-items:center;justify-content:center;font:inherit;font-family:var(--f-display);font-weight:800;font-size:calc(24px * var(--fs));line-height:1;
  color:var(--ink);background:var(--card);border:3px solid var(--line);border-radius:10px;box-shadow:0 3px 0 var(--line);cursor:pointer}
.czi-o[data-op="+"].ales{background:var(--leaf);border-color:var(--leaf);color:var(--card);box-shadow:0 3px 0 var(--ink)}
.czi-o[data-op="-"].ales{background:var(--berry);border-color:var(--berry);color:var(--card);box-shadow:0 3px 0 var(--ink)}
.czi-o:disabled{cursor:default}
.czi-c.rau{border-color:var(--berry);animation:cz-shake .45s}
.czi-c.bine{border-color:var(--leaf);background:var(--leaf-tint)}
.czi-ex{grid-column:1 / -1;font-weight:700;font-size:calc(13px * var(--fs));color:var(--muted);line-height:1.25}
.czi-ex:empty{display:none}
.czi-cap{color:var(--berry)}
.czi-nr{color:var(--muted);font-weight:800;font-size:calc(14px * var(--fs))}

/* ---------- laborator: antrenament rapid ---------- */
.an-top{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--muted);font-size:calc(14px * var(--fs))}
.an-bar{flex:1;height:10px;background:var(--line);border-radius:99px;overflow:hidden}
.an-bar i{display:block;height:100%;background:var(--leaf);transition:width .4s}
.an-serie.aprinsa{color:var(--berry);animation:cz-pop .4s ease-out}
.an-q{font-size:calc(19px * var(--fs));font-weight:800;margin:10px 0;color:var(--ink);line-height:1.35}
.an-var{justify-content:center;gap:12px}
.an-var .chip{font-size:calc(20px * var(--fs));min-width:5.5em;min-height:calc(48px * var(--fs));justify-content:center}
.an-msg{min-height:2.6em;margin:8px 0 0;text-align:center;font-weight:800;font-size:calc(15px * var(--fs));line-height:1.3}
.an-msg.bine{color:var(--leaf-deep)} .an-msg.rau{color:var(--berry)}
.an-final{text-align:center}
.an-final .an-q{text-align:center}
.an-scor{font-family:var(--f-display);font-size:calc(54px * var(--fs));color:var(--leaf-deep);animation:cz-pop .5s}

@keyframes cz-pop{0%{transform:scale(.6)}70%{transform:scale(1.15)}100%{transform:none}}
@keyframes cz-shake{0%,100%{transform:none}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

/* mișcare redusă (sistem): animațiile decorative se opresc; desenele și cântarul sunt oprite din js/aplicatie.js */
@media (prefers-reduced-motion: reduce){
  .an-serie,.an-scor,.czd-o,.czi-c{animation:none!important}
  .cz-anim [data-k],.cz-brat,.cz-tal{transition:none!important}
}

/* stația 12: perechile cu probleme lungi rămân pe scenă și după rezolvare */
#v-s12 .perechi .chip{padding-top:6px;padding-bottom:6px;line-height:1.2}

/* Butonul „Verifică” din bara de jos este ascuns; verificarea se deschide din cuprins sau după ultima stație. */
.bottom #checkBtn{display:none!important}

/* ===== aliniere comună (lecțiile refăcute): fără suprapuneri de butoane și text ===== */
/* plasă de siguranță: dacă o stație e mai înaltă decât scena, se derulează în interior, nu intră sub bara de jos */
html:not(.flow) .view.on{overflow-y:auto;overflow-x:hidden;scrollbar-width:thin}
/* ordonare: toate cartonașele pe un rând, loc pentru bulina cu numărul, textul rămâne în cartonaș */
.task .order{grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);grid-template-columns:none;gap:10px;margin-top:16px}
.task .order .ocard{min-width:0;padding:10px 6px 8px;overflow-wrap:anywhere;hyphens:auto}
.task .order .oc-emoji{font-size:2.1em;line-height:1.1}
.task .order .ocard .lab{font-size:calc(14px * var(--fs));line-height:1.2}
.task .order .ocard .more{font-size:calc(12px * var(--fs));line-height:1.2;color:var(--muted)}
.task .order .ocard .badge{top:-14px;left:-8px}
html.flow .task .order{grid-auto-flow:row;grid-template-columns:repeat(2,minmax(0,1fr))}
/* perechi: bulina cu numărul stă pe același rând cu textul, deci butonul nu crește după rezolvare */
.perechi .chip{display:flex;align-items:center;gap:8px;min-width:0;overflow-wrap:anywhere}
.perechi .chip[data-p]::after{flex:0 0 22px}
/* rânduri de butoane: se rup pe rândul următor în loc să se calce */
.grp,.chips,.actions{flex-wrap:wrap;row-gap:10px}
.chip,.btn{max-width:100%}
.btn{white-space:normal}