/* aplicatie.css — stiluri proprii lecției „Probleme: o cifră × două cifre” (doar variabile de culoare). */

/* ---------- planșe desenate ---------- */
.plate .po-cov,.plate .po-trei,.plate .po-sala,.plate .po-banda,.plate .po-bon,.plate .po-bl,.plate .po-col,.plate .po-com{
  background:var(--card);color:var(--ink);border-radius:12px;padding:14px;font-weight:800}

/* convenția planșelor animate (un singur ceas în js/aplicatie.js) */
.po-anim [data-de]{transition:opacity .35s}
.po-anim [data-de].po-asc{opacity:0}
.po-txt{display:grid;margin:10px 0 0;text-align:center;font-size:calc(18px * var(--fs));line-height:1.35}
.po-txt>span{grid-area:1/1;visibility:hidden;align-self:center}
.po-txt>span.on{visibility:visible}
.po-txt b{color:var(--berry)}
.po-atn{margin:6px 0 0;text-align:center;font-size:calc(14px * var(--fs));color:var(--muted)}

/* ouăle în cofraje (copertă și laborator): coloane de câte 2 ouă */
.po-cofraje{display:grid;grid-template-columns:repeat(2,max-content);gap:10px;justify-content:center}
.po-cof{display:inline-grid;grid-template-rows:repeat(2,auto);grid-auto-flow:column;gap:3px;padding:5px;border:3px solid var(--sun-edge);border-radius:10px;background:var(--sun-tint)}
.po-ou{display:block;width:calc(17px * var(--fs));height:calc(21px * var(--fs));border-radius:50% 50% 46% 46% / 58% 58% 42% 42%;background:var(--card);border:2px solid var(--sun-edge);box-sizing:border-box;transition:background .35s,border-color .35s}
.po-cof12 .po-ou:nth-child(11){margin-left:6px}
.po-cof12 .po-ou:nth-child(11),.po-cof12 .po-ou:nth-child(12){outline:2px dashed var(--muted);outline-offset:1px}
.po-ou.po-oz.lum{background:var(--sky);border-color:var(--sky)}
.po-ou.po-oun.lum{background:var(--berry);border-color:var(--berry)}
.po-l0{margin:10px 0 4px;text-align:center;font-size:calc(18px * var(--fs));color:var(--muted)}
.po-linii{display:grid;gap:4px}
.po-li{margin:0;padding:3px 10px;border-radius:10px;text-align:center;font-size:calc(19px * var(--fs))}
.po-li-z{background:var(--sky-tint)} .po-li-z b{color:var(--sky)}
.po-li-u{background:var(--berry-tint)} .po-li-u b{color:var(--berry)}
.po-li-t{background:var(--leaf-tint);color:var(--leaf-deep)} .po-li-t b{color:var(--leaf-deep)}

/* stația 1: trei calcule */
.po-vaze{display:flex;gap:8px;justify-content:center;margin-bottom:10px}
.po-vaza{display:flex;flex-direction:column;align-items:center;gap:2px;border:3px solid var(--sky);border-radius:10px 10px 16px 16px;padding:4px 8px;background:var(--sky-tint)}
.po-vaza span{font-size:calc(24px * var(--fs));line-height:1}
.po-vaza b{font-size:calc(17px * var(--fs));color:var(--sky)}
.po-cl{display:flex;align-items:center;gap:10px;margin:6px 0 0;padding:6px 10px;border-radius:10px}
.po-sem{flex:0 0 auto;width:calc(30px * var(--fs));height:calc(30px * var(--fs));display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:calc(17px * var(--fs))}
.po-ex{flex:1;font-family:var(--f-display);font-size:calc(20px * var(--fs))}
.po-cl small{flex:0 0 auto;font-size:calc(13px * var(--fs));color:var(--muted)}
.po-ok{background:var(--leaf-tint)} .po-ok .po-sem{background:var(--leaf);color:var(--on-leaf)}
.po-bun{border:3px solid var(--leaf)}
.po-nu{background:var(--berry-tint)} .po-nu .po-sem{background:var(--berry);color:var(--card)} .po-nu .po-ex{text-decoration:line-through;text-decoration-color:var(--berry)}

/* stația 2: sala cu scaune */
.po-scena{margin:0 auto 6px;width:70%;text-align:center;border-radius:0 0 40px 40px;background:var(--berry-tint);color:var(--berry);font-size:calc(14px * var(--fs));padding:2px 0}
.po-sus{margin:0 0 6px;text-align:center;font-size:calc(14px * var(--fs));color:var(--muted);border-bottom:2px solid var(--line);margin-left:calc(30px * var(--fs))}
.po-rd{display:flex;align-items:center;gap:4px;padding:4px;border-radius:8px;border:2px solid transparent;transition:background .35s,border-color .35s}
.po-rd.lum{background:var(--sun-tint);border-color:var(--sun-edge)}
.po-rn{flex:0 0 calc(22px * var(--fs));text-align:center;color:var(--muted);font-size:calc(14px * var(--fs))}
.po-loc{flex:1 1 0;max-width:calc(22px * var(--fs));aspect-ratio:1;border-radius:5px 5px 2px 2px;background:var(--sky);opacity:.35;transition:opacity .35s}
.po-rd.lum .po-loc{opacity:1}

/* stația 3: banda „de n ori” */
.po-bd{display:flex;align-items:center;gap:8px;margin:6px 0}
.po-bet{flex:0 0 calc(64px * var(--fs));text-align:right;color:var(--muted);font-size:calc(15px * var(--fs))}
.po-bbar{flex:1;display:flex;min-width:0;height:calc(38px * var(--fs))}
.po-seg{display:flex;align-items:center;justify-content:center;min-width:0;box-sizing:border-box;border:2px solid var(--ink);margin-right:-2px;background:var(--sky-tint);color:var(--ink);font-size:calc(16px * var(--fs))}
.po-seg-a{background:var(--leaf-tint);color:var(--leaf-deep)}
.po-seg.po-gol{border:0;background:transparent}

/* stația 4: bonul */
.po-bon{max-width:340px;margin:0 auto;font-family:var(--f-display)}
.po-bon-t{margin:0 0 8px;text-align:center;font-size:calc(18px * var(--fs));border-bottom:2px dashed var(--line);padding-bottom:6px}
.po-bon-r{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:4px 0;font-size:calc(20px * var(--fs))}
.po-bon-x b{color:var(--sky)}
.po-bon-tot{border-top:2px dashed var(--line);padding-top:6px;margin-top:8px}
.po-bon-tot b{background:var(--leaf);color:var(--on-leaf);border-radius:10px;padding:0 10px}
.po-bon-j{margin:10px 0 0;text-align:center;font-family:var(--f-body);font-size:calc(14px * var(--fs));color:var(--muted)}

/* stația 5: bețe de zece și cubulețe */
.po-bl-sus{display:flex;gap:10px;justify-content:center;font-size:calc(15px * var(--fs));color:var(--muted)}
.po-bl-sus span{text-align:center}
.po-bl-hz{width:calc(3 * 12px * var(--fs) + 2 * 4px)}
.po-bl-hu{width:calc(4 * 12px * var(--fs) + 3 * 4px)}
.po-bl-grid{display:grid;gap:4px;justify-content:center}
.po-bl-r{display:flex;align-items:center;gap:4px}
.po-bl-sep{width:6px}
.po-bt{display:block;width:calc(12px * var(--fs));height:calc(18px * var(--fs));border-radius:3px;background:var(--sky);opacity:.3;transition:opacity .35s}
.po-cb{display:block;width:calc(12px * var(--fs));height:calc(12px * var(--fs));border-radius:3px;background:var(--berry);opacity:.3;transition:opacity .35s}
.po-bt.lum,.po-cb.lum{opacity:1}
.po-bl .po-linii{margin-top:8px}

/* stația 7: în coloană — semnul × la dreapta primului număr, linia sub al doilea */
.po-cg{display:grid;grid-template-columns:repeat(4,1.1em);justify-content:center;margin:0 auto;font-family:var(--f-display);font-size:calc(42px * var(--fs));line-height:1.1;font-variant-numeric:tabular-nums}
.po-cg>span{display:flex;align-items:center;justify-content:center;border-radius:8px;transition:background .35s}
.po-ch{font-size:.42em;color:var(--muted)}
.po-tm{font-size:.5em;color:var(--berry);align-self:end}
.po-cd.lum{background:var(--sun-tint)}
.po-semn{color:var(--berry)}
.po-cl-l{height:4px;margin:0 -1px;background:var(--ink);align-self:center;border-radius:2px}
.po-cr{color:var(--leaf-deep)}
.po-t{color:var(--berry)}

/* stația 8: tablou citit pe rânduri și pe coloane */
.po-com-g{display:grid;gap:6px;justify-content:center}
.po-com-r{display:flex;gap:5px;padding:4px;border-radius:999px;border:3px solid transparent;transition:border-color .35s,background .35s}
.po-com-r.lum{border-color:var(--sun-edge);background:var(--sun-tint)}
.po-pt{display:block;width:calc(14px * var(--fs));height:calc(14px * var(--fs));border-radius:50%;background:var(--sky);transition:background .35s}
.po-pt.lum:nth-child(odd){background:var(--berry)}
.po-pt.lum:nth-child(even){background:var(--leaf)}

/* ---------- stațiile-laborator: coloana de lucru mai lată ---------- */
html:not(.flow) #v-s6 .lesson,html:not(.flow) #v-s9 .lesson,html:not(.flow) #v-s12 .lesson{grid-template-columns:minmax(0,1.6fr) minmax(0,.4fr)}
#v-s6 .emoji-plansa,#v-s9 .emoji-plansa,#v-s12 .emoji-plansa{font-size:4em;padding:10px 0}

/* plăcuțele de răspuns din laboratoare: mari, la fel, cu starea „ales” clară */
.cf-t,.ei-o,.cf-gol{cursor:pointer;color:var(--ink);background:var(--card);border:3px solid var(--stripe);border-radius:14px;box-shadow:0 5px 0 var(--stripe);transition:transform .15s}
.cf-t:hover:not(:disabled),.ei-o:hover:not(:disabled){transform:translateY(-2px)}
.cf-t.ales,.ei-o.ales{background:var(--berry);border-color:var(--berry);color:var(--card);box-shadow:0 5px 0 var(--ink);transform:translateY(-3px)}
.ei-o.bun{background:var(--leaf);border-color:var(--leaf);color:var(--on-leaf);box-shadow:0 5px 0 var(--leaf-deep)}
.cf-t:disabled,.ei-o:disabled{cursor:default}

/* ---------- laborator 1: cofrajele de ouă ---------- */
.cf-top,.ei-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))}
.cf-pasi{display:flex;gap:6px;flex-wrap:wrap}
.cf-pasi b{border:2px solid var(--line);border-radius:999px;padding:1px 10px;font-size:calc(13px * var(--fs))}
.cf-pasi b.acum{background:var(--sun);border-color:var(--sun-edge);color:var(--on-sun)}
.cf-pasi b.gata{background:var(--leaf-tint);border-color:var(--leaf);color:var(--leaf-deep)}
.cf-enunt,.ei-enunt{margin:2px 0 5px;font-weight:700;font-size:calc(16px * var(--fs));line-height:1.35;color:var(--ink)}
.cf-ferma{display:flex;flex-wrap:wrap;gap:5px;justify-content:flex-start;align-items:center;padding:4px;border-radius:10px;background:var(--paper)}
.cf-slot{padding:2px;border:2px dashed var(--line);border-radius:10px;background:var(--card);cursor:pointer;display:flex;align-items:center;justify-content:center;min-width:0}
.cf-slot:disabled{cursor:default}
.cf-slot .po-cof{padding:3px;gap:2px;border-width:2px;background:transparent;border-color:var(--line)}
.cf-slot .po-ou{width:calc(11px * var(--fs));height:calc(14px * var(--fs));border:1.5px dashed var(--muted);background:transparent;opacity:.45}
.cf-slot .po-cof.plin{background:var(--sun-tint);border-color:var(--sun-edge)}
.cf-slot .po-cof.plin .po-ou{background:var(--card);border:1.5px solid var(--sun-edge);opacity:1}
.cf-slot:has(.plin){border-style:solid;border-color:var(--sun-edge)}
.cf-slot .po-cof.plin .po-ou.cf-z,.cf-f10 .cf-slot.cf-zu .po-cof.plin .po-ou,.cf-slot.cf-zece .po-cof.plin .po-ou{background:var(--sky);border-color:var(--sky)}
.cf-slot .po-cof.plin .po-ou.cf-u,.cf-slot.cf-unit .po-cof.plin .po-ou{background:var(--berry);border-color:var(--berry)}
.cf-slot.cf-zece{border-color:var(--sky);background:var(--sky-tint)}
.cf-slot.cf-unit{border-color:var(--berry);background:var(--berry-tint)}
.cf-slot.pop{animation:po-in .3s ease-out}
.cf-lucru{min-height:calc(70px * var(--fs))}
.cf-q{margin:8px 0 4px;font-weight:800;font-size:calc(16px * var(--fs));color:var(--ink)}
.cf-r,.cf-r3{display:flex;align-items:center;gap:10px 14px;flex-wrap:wrap;margin-top:6px}
.cf-et{font-weight:800;font-size:calc(14px * var(--fs));color:var(--muted)}
.cf-ec{display:flex;align-items:center;gap:8px;font-family:var(--f-display);font-size:calc(24px * var(--fs));color:var(--ink)}
.cf-gol{--stripe:var(--berry);min-width:calc(56px * var(--fs));min-height:calc(46px * var(--fs));font-family:var(--f-display);font-size:calc(22px * var(--fs));border-style:dashed;color:var(--berry)}
.cf-gol.plin{border-style:solid;color:var(--ink)}
.cf-ch{gap:10px}
.cf .cf-t{min-width:calc(58px * var(--fs));min-height:calc(42px * var(--fs));padding:4px 12px;font-size:calc(19px * var(--fs));font-weight:800;justify-content:center;text-align:center;width:auto}
.cf-lin{margin:4px 0 0;font-family:var(--f-display);font-size:calc(19px * var(--fs));color:var(--ink);line-height:1.5}
.cf-g{display:inline-block;min-width:1.6em;text-align:center;border-bottom:3px dashed var(--berry);color:var(--berry)}
.cf-nota{display:inline-block;margin-left:6px;padding:0 10px;border-radius:10px;background:var(--sky-tint);color:var(--sky);font-weight:800;font-size:calc(14px * var(--fs))}
.cf-fin{margin:6px 0 0;font-weight:800;color:var(--leaf-deep);line-height:1.5}
.cf-act,.ei-act{display:flex;gap:12px;justify-content:space-between;align-items:center;margin-top:8px;padding-top:8px;border-top:2px dashed var(--line)}
.cf-act .verif,.cf-act .cf-urm,.ei-act .verif,.ei-act .ei-urm,.ei-act .ei-nou{margin-left:auto}
.cf-act .verif:disabled,.ei-act .verif:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

/* ---------- laborator 2: este înmulțire? ---------- */
.ei-cosuri{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:6px 0}
.ei-cos{display:flex;align-items:center;flex-wrap:wrap;gap:4px 6px;min-height:calc(34px * var(--fs));padding:4px 8px;border-radius:10px;border:2px dashed var(--line);font-size:calc(13px * var(--fs))}
.ei-cn{font-weight:900;margin-right:4px}
.ei-cos-x{border-color:var(--sky)} .ei-cos-x .ei-cn{color:var(--sky)}
.ei-cos-p{border-color:var(--sun-edge)} .ei-cos-p .ei-cn{color:var(--sun-ink)}
.ei-cos i{font-style:normal;font-weight:800;background:var(--card);border:2px solid var(--line);border-radius:999px;padding:0 8px;color:var(--ink);animation:po-in .3s ease-out}
.ei-cos em{color:var(--muted);font-weight:700}
.ei-enunt{padding:8px 12px;border-radius:12px;background:var(--paper);border-left:6px solid var(--sky)}
.ei-rand{display:grid;gap:4px;margin-top:8px}
.ei-et{font-weight:800;font-size:calc(14px * var(--fs));color:var(--muted)}
.ei-opt{display:flex;gap:10px;flex-wrap:wrap}
.ei-o{--stripe:var(--leaf-deep);flex:1 1 0;min-width:calc(110px * var(--fs));min-height:calc(46px * var(--fs));padding:4px 10px;display:flex;align-items:center;justify-content:center;gap:8px;font-weight:800;font-size:calc(18px * var(--fs))}
.ei-ex{font-family:var(--f-display);font-size:calc(21px * var(--fs))}
.ei-o b{font-family:var(--f-display);font-size:1.3em;line-height:1}
.ei-rez{flex:1 1 260px;margin:0;padding:6px 12px;border-radius:12px;background:var(--leaf-tint);color:var(--leaf-deep);font-weight:800;font-size:calc(15px * var(--fs));line-height:1.4}
.ei-rez span{color:var(--ink)}

/* ---------- laborator 3: 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{transition:transform .2s}
.an-serie.aprinsa{color:var(--berry);animation:po-pop .4s ease-out}
.an-q{font-size:calc(19px * var(--fs));font-weight:800;margin:12px 0;color:var(--ink);line-height:1.35}
.an-var{justify-content:center;gap:12px}
.an .an-var .chip{font-size:calc(20px * var(--fs));min-width:6em;min-height:calc(52px * var(--fs));justify-content:center;text-align:center;width:auto;border-width:3px;border-radius:14px}
.an-msg{min-height:2.8em;margin:10px 0 0;text-align:center;font-weight:800}
.an-msg.bine{color:var(--leaf-deep)} .an-msg.rau{color:var(--berry)}
.an-final{text-align:center}
.an-final .grp{justify-content:center}
.an-scor{font-family:var(--f-display);font-size:calc(54px * var(--fs));color:var(--leaf-deep);animation:po-pop .5s}

@keyframes po-in{0%{transform:scale(.75)}100%{transform:none}}
@keyframes po-pop{0%{transform:scale(.6)}70%{transform:scale(1.15)}100%{transform:none}}

/* fără animații (accesibilitate) și mișcare redusă: stare completă, fără tranziții */
html.a-still .po-anim [data-de],html.a-still .po-ou,html.a-still .po-rd,html.a-still .po-loc,html.a-still .po-bt,html.a-still .po-cb,html.a-still .po-cg>span,html.a-still .po-com-r,html.a-still .po-pt{transition:none}
html.a-still .cf-slot.pop,html.a-still .an-scor,html.a-still .an-serie,html.a-still .ei-cos i{animation:none}
@media (prefers-reduced-motion: reduce){
  .po-anim [data-de],.po-ou,.po-rd,.po-loc,.po-bt,.po-cb,.po-cg>span,.po-com-r,.po-pt{transition:none!important}
  .cf-slot.pop,.an-scor,.an-serie,.ei-cos i{animation:none!important}
}

/* 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}