/* aplicatie.css — stiluri proprii lecției „Probleme cu estimarea produselor” (doar variabile de culoare). */

/* ---------- planșe desenate: fond de card, text lizibil în toate stilurile ---------- */
.plate .cv,.plate .tb,.plate .rz,.plate .cz,.plate .lb-pl,.plate .am2,.plate .am-pl,.plate .sg,.plate .ap,.plate .gr{
  background:var(--card);color:var(--ink);border-radius:12px;padding:14px;font-weight:800}

/* ---------- balanța (copertă, stația 4) ---------- */
.bl{display:block;width:100%;max-width:360px;margin:0 auto;overflow:visible}
.bl-st{stroke:var(--muted);stroke-width:6;stroke-linecap:round}
.bl-baza{fill:var(--muted)}
.bl-beam{transform-box:view-box;transform-origin:160px 53px;transition:transform .7s cubic-bezier(.3,1.4,.5,1)}
.bl-beam rect{fill:var(--sun);stroke:var(--sun-edge);stroke-width:2}
.bl-piv{fill:var(--ink)}
.bl-pan{transition:transform .7s cubic-bezier(.3,1.4,.5,1)}
.bl-f{stroke:var(--muted);stroke-width:2;fill:none}
.bl-v{stroke-width:3}
.bl-pan.st .bl-v{fill:var(--leaf-tint);stroke:var(--leaf)}
.bl-pan.dr .bl-v{fill:var(--sky-tint);stroke:var(--sky)}
.bl-em{font-size:26px;text-anchor:middle}
.bl-val{font-size:17px;font-weight:900;text-anchor:middle;fill:var(--ink)}
.bl-cap{font-size:13px;font-weight:800;text-anchor:middle;fill:var(--muted)}
.necunoscut .bl-pan.dr .bl-val{fill:var(--muted)}

/* copertă: pașii se aprind pe rând, din același ceas cu balanța */
.cv{display:flex;flex-direction:column;gap:6px;padding:16px!important}
.cv-pasi{display:flex;flex-direction:column;gap:4px}
.cv-l,.cv-concl{margin:0;font-size:calc(20px * var(--fs));opacity:.18;transition:opacity .4s}
.cv-l.on,.cv-concl.on{opacity:1}
.cv-r{color:var(--berry)}
.cv-concl{text-align:center;background:var(--leaf-tint);border-radius:12px;padding:6px 10px}
.cv-concl b{color:var(--leaf-deep)}

/* ---------- stația 1: tabloul de obiecte rotunjit ---------- */
.tb-svg{display:block;width:100%}
.tb-zece{fill:var(--sky);stroke:var(--ink);stroke-width:.6}
.tb-u{fill:var(--sun);stroke:var(--sun-edge);stroke-width:1}
.tb-f{fill:var(--card);stroke:var(--berry);stroke-width:1.6;stroke-dasharray:3 2;transition:fill .5s}
.tb.rot .tb-f{fill:var(--berry);stroke-dasharray:none}
.tb-leg{display:flex;flex-wrap:wrap;gap:6px 14px;justify-content:center;font-size:calc(13px * var(--fs));color:var(--muted);margin-top:6px}
.tb-leg span{display:inline-flex;align-items:center;gap:5px}
.tb-k{display:inline-block;width:12px;height:12px;border-radius:50%}
.tb-k.z{width:22px;border-radius:3px;background:var(--sky)}
.tb-k.u{background:var(--sun)}
.tb-k.f{border:2px dashed var(--berry)}
.tb-txt{position:relative;margin:8px 0 0;height:1.4em;text-align:center;font-size:calc(24px * var(--fs))}
.tb-txt span{position:absolute;left:0;right:0;transition:opacity .4s}
.tb-b{opacity:0;color:var(--berry)}
.tb.rot .tb-a{opacity:0}
.tb.rot .tb-b{opacity:1}
html.a-still .tb-txt{height:auto}
html.a-still .tb-txt span{position:static;opacity:1!important}
html.a-still .tb-a::after{content:" ≈ ";color:var(--muted)}

/* ---------- stația 2: axa și tabelul de rotunjire ---------- */
.rz-ax{display:block;width:100%;max-width:340px;margin:0 auto}
.rz-l{stroke:var(--ink);stroke-width:2.5}
.rz-t{stroke:var(--muted);stroke-width:1.5}
.rz-t.m{stroke:var(--ink);stroke-width:2.5}
.rz-n{font-size:13px;font-weight:800;text-anchor:middle;fill:var(--muted)}
.rz-p{fill:var(--berry)}
.rz-pn{font-size:16px;font-weight:900;text-anchor:middle;fill:var(--berry)}
.rz-arr{fill:none;stroke:var(--leaf);stroke-width:3;stroke-dasharray:5 3}
.rz-tab{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin-top:8px;text-align:center;font-size:calc(18px * var(--fs))}
.rz-tab>*{border-radius:8px;padding:4px 6px;display:flex;align-items:center;justify-content:center}
.rz-tab .h{font-size:calc(13px * var(--fs));color:var(--muted)}
.rz-tab span:not(.h){background:var(--sky-tint)}
.rz-tab b{background:var(--leaf-tint);color:var(--leaf-deep)}

/* ---------- stația 3: cifrele și zerourile ---------- */
.cz p{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;margin:6px 0;font-size:calc(26px * var(--fs))}
.cz span{text-align:right}
.cz i{font-style:normal;color:var(--muted)}
.cz u{text-decoration:none;color:var(--berry)}
.cz .cz-atn{background:var(--sun-tint);border-radius:12px;padding:4px 10px;margin-top:10px}
.cz em{grid-column:1/-1;font-style:normal;font-size:calc(14px * var(--fs));color:var(--sun-ink);text-align:center}

/* ---------- modelul de arie (stațiile 5 și 6) ---------- */
.am-svg{display:block;width:100%;max-width:400px;margin:0 auto}
.am2 .am-svg{max-width:330px}
.am-ex{fill:var(--leaf-tint);stroke:var(--leaf);stroke-width:2}
.am-rl{stroke:var(--leaf);stroke-width:1;opacity:.6}
.am-dif{stroke-width:2;stroke-dasharray:4 3}
.am-plus{fill:var(--berry-tint);stroke:var(--berry)}
.am-minus{fill:var(--sky-tint);stroke:var(--sky)}
.am-q{font-size:16px;font-weight:900;text-anchor:end;fill:var(--sky)}
.am-n{font-size:14px;font-weight:900;text-anchor:middle;fill:var(--leaf-deep)}
.am-d{font-size:14px;font-weight:900;text-anchor:end}
.am-d.up{fill:var(--berry)} .am-d.dn{fill:var(--sky)}
.am-x{font-size:14px;font-weight:800;fill:var(--ink)}
.am-e{font-size:14px;font-weight:900;text-anchor:end;fill:var(--berry)}
.am2{display:flex;flex-direction:column;gap:10px}
.am2-r p{margin:0;display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;font-size:calc(18px * var(--fs))}
.am2 .up,.am2 .dn{font-size:calc(14px * var(--fs));border-radius:999px;padding:2px 10px}
.am2 .up{background:var(--berry-tint);color:var(--berry)}
.am2 .dn{background:var(--sky-tint);color:var(--sky)}
/* laborator: înainte de răspuns se ascund diferența și estimarea; după răspuns fâșia crește */
.am-pt{margin:0 0 4px;text-align:center;font-size:calc(22px * var(--fs))}
.am-pre .am-dif,.am-pre .am-d,.am-pre .am-x{opacity:0}
.am-arata .am-dif{transform-box:fill-box;transform-origin:left center;animation:am-creste .7s ease-out both}
.am-arata .am-d,.am-arata .am-x{animation:am-apare .5s .4s ease-out both}
@keyframes am-creste{from{transform:scaleX(0)}to{transform:none}}
@keyframes am-apare{from{opacity:0}to{opacity:1}}

/* ---------- stația 7: regula „sigur” ---------- */
.sg{display:flex;flex-direction:column;gap:10px}
.sg-r{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:0;border-radius:12px;padding:8px 10px;font-size:calc(18px * var(--fs))}
.sg-r span{background:var(--card);border:2px solid var(--line);border-radius:10px;padding:2px 8px}
.sg-r i{font-style:normal;color:var(--muted)}
.sg-r.da{background:var(--leaf-tint)} .sg-r.da b{color:var(--leaf-deep)}
.sg-r.nu{background:var(--berry-tint)} .sg-r.nu b{color:var(--berry)}
.sg-r:last-child{background:var(--sun-tint)} .sg-r:last-child b{color:var(--sun-ink)}

/* ---------- stația 8: estimarea scrisă ---------- */
.ap{text-align:center}
.ap-e,.ap-s{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:6px;margin:0}
.ap-e{font-size:calc(26px * var(--fs))}
.ap-e i{font-style:normal;color:var(--berry)}
.ap-e span{background:var(--sky-tint);border-radius:10px;padding:4px 6px}
.ap-e b{background:var(--leaf-tint);color:var(--leaf-deep);border-radius:10px;padding:4px 6px}
.ap-s{margin-top:6px;font-size:calc(13px * var(--fs));color:var(--muted)}
.ap-s span:nth-child(1){grid-column:1} .ap-s span:nth-child(2){grid-column:3} .ap-s span:nth-child(3){grid-column:5}

/* ---------- stația 12: lista de verificare ---------- */
.gr p{display:flex;align-items:center;gap:10px;margin:8px 0;font-size:calc(19px * var(--fs))}
.gr b{flex:0 0 auto;width:1.8em;height:1.8em;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--sun);color:var(--on-sun)}

/* ---------- plăcuțele laboratoarelor: butoane mari, starea „ales” clară ---------- */
.ep-t{min-width:calc(76px * var(--fs));min-height:calc(48px * var(--fs));padding:4px 14px;font:inherit;font-size:calc(19px * var(--fs));font-weight:800;color:var(--ink);background:var(--card);
  border:3px solid var(--stripe,var(--line));border-radius:14px;box-shadow:0 5px 0 var(--stripe,var(--line));cursor:pointer;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.15}
.ep-t{--stripe:color-mix(in srgb,var(--leaf) 65%,var(--ink))}
.ep-t:hover:not(:disabled){transform:translateY(-2px)}
.ep-t:disabled{opacity:.45;cursor:default;transform:none}
.ep-t.ales,.ep-t.ales:disabled{opacity:1;background:var(--leaf);border-color:var(--leaf-deep);color:var(--on-leaf);box-shadow:0 5px 0 var(--leaf-deep)}
.ep-t.bun,.ep-t.bun:disabled{opacity:1;background:var(--leaf-tint);border-color:var(--leaf);color:var(--leaf-deep)}
.ep-t.rau,.ep-t.rau:disabled{opacity:1;background:var(--berry-tint);border-color:var(--berry);color:var(--berry)}
.ep-t small{font-size:calc(13px * var(--fs));font-weight:700;opacity:.85}
.ep-t.scutura{animation:ep-scutura .45s}
@keyframes ep-scutura{0%,100%{transform:none}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

/* ---------- laborator 1: Ajung banii? ---------- */
.ab-top{display:flex;justify-content:space-between;align-items:center;gap:8px;font-weight:800;color:var(--muted);font-size:calc(14px * var(--fs))}
.ab-pct{color:var(--leaf);letter-spacing:2px}
.ab-cer{margin:4px 0 6px;font-weight:800;font-size:calc(18px * var(--fs));color:var(--ink)}
.ab-pas{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:4px 8px;margin:2px 0;border-radius:12px;border:2px solid transparent;opacity:.5}
.ab-pas.activ{opacity:1;border-color:var(--sun);background:var(--sun-tint)}
.ab-pas.gata{opacity:1}
.ab-n{flex:0 0 auto;width:1.7em;height:1.7em;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--line);color:var(--ink);font-weight:900}
.ab-pas.activ .ab-n{background:var(--sun);color:var(--on-sun)}
.ab-pas.gata .ab-n{background:var(--leaf);color:var(--on-leaf)}
.ab-t{font-weight:800;font-size:calc(17px * var(--fs));color:var(--ink)}
.ab-r{color:var(--berry)}
.ab-ch{display:flex;gap:8px;flex-wrap:wrap;margin-left:auto}
.ab-ch .ep-t{min-width:calc(60px * var(--fs));min-height:calc(40px * var(--fs));padding:2px 10px;font-size:calc(16px * var(--fs));box-shadow:0 4px 0 var(--stripe)}
/* bara de jos a laboratorului: mesajul la stânga, butonul principal separat, la dreapta */
.ab-act{display:flex;gap:10px;justify-content:flex-end;align-items:center;flex-wrap:wrap;margin-top:8px;padding-top:8px;border-top:2px dashed var(--line)}
.ab-msg{flex:1 1 200px;margin:0;min-height:1.3em;font-weight:800;font-size:calc(15px * var(--fs));color:var(--muted)}
.ab-msg.bine{color:var(--leaf-deep)}
.ab-act .btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

/* ---------- laborator 2: Mai mult sau mai puțin? ---------- */
.ps-ec{display:flex;align-items:center;justify-content:center;gap:12px;margin:8px 0;font-weight:900;font-size:calc(28px * var(--fs))}
.ps-ec i{font-style:normal;color:var(--muted)}
.ps-b{height:calc(54px * var(--fs));display:inline-flex;align-items:center;padding:0 14px;border-radius:14px;border:3px solid var(--leaf);background:var(--leaf-tint);color:var(--ink)}
.ps-b.est{border-color:var(--berry);background:var(--berry-tint)}
.ps-q{margin:4px 0 8px;text-align:center;font-weight:800;font-size:calc(17px * var(--fs));color:var(--ink)}
.ps-ch{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.ps-ch .ep-t{min-width:calc(170px * var(--fs))}

/* ---------- 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.aprinsa{color:var(--berry);animation:ep-pop .4s ease-out}
.an-tip{margin:8px 0 0;text-align:center}
.an-tip{display:block;width:max-content;max-width:100%;margin:8px auto 0;padding:2px 12px;border-radius:999px;background:var(--sky-tint);color:var(--sky);font-weight:900;font-size:calc(13px * var(--fs))}
.an-q{font-size:calc(20px * var(--fs));font-weight:800;margin:8px 0 10px;color:var(--ink);text-align:center;line-height:1.3}
.an-var{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.an-var .ep-t{min-width:calc(150px * var(--fs))}
.an-var.patru{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));max-width:440px;margin:0 auto}
.an-msg{min-height:1.4em;margin:10px 0 0;text-align:center;font-weight:800;font-size:calc(15px * var(--fs))}
.an-msg.bine{color:var(--leaf-deep)} .an-msg.rau{color:var(--berry)}
.an-final{text-align:center}
.an-scor{font-family:"Baloo 2",system-ui,sans-serif;font-size:calc(54px * var(--fs));color:var(--leaf-deep);animation:ep-pop .5s}
@keyframes ep-pop{0%{transform:scale(.6)}70%{transform:scale(1.15)}100%{transform:none}}

/* mișcare redusă (sistem) și „fără animații”: starea completă, fără tranziții */
@media (prefers-reduced-motion: reduce){
  .bl-beam,.bl-pan,.cv-l,.cv-concl,.tb-f,.tb-txt span{transition:none!important}
  .am-arata .am-dif,.am-arata .am-d,.am-arata .am-x,.an-scor,.an-serie,.ep-t.scutura{animation:none!important}
  .tb-txt{height:auto} .tb-txt span{position:static;opacity:1!important} .tb-a::after{content:" ≈ ";color:var(--muted)}
}

/* 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}