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

/* ---------- planșe desenate ---------- */
.plate .dl-plansa,.plate .dl-anim{background:var(--card);color:var(--ink);border-radius:12px;padding:10px 12px;font-weight:800;text-align:center}
.dl-mic{margin:4px 0;font-size:calc(14px * var(--fs));color:var(--muted);font-weight:800}
.dl-mic b{color:var(--ink)}
.dl-anim-t{margin:6px 0 0;font-size:calc(17px * var(--fs));color:var(--ink);min-height:1.4em}
.dl-anim-t b{color:var(--berry)}
.dl-anim-t span{display:none}
.dl-anim-t span.on,.dl-anim:not([data-f]) .dl-anim-t [data-f="3"]{display:inline}

/* livezile: pomi ca bulinițe, A verde și B albastru; tăiate: zeci albastru, unități galben */
.dl-livezi{display:block;width:100%;height:auto;max-height:260px}
.dl-pom{fill:var(--leaf)}
.dl-lv-1 .dl-pom{fill:var(--sky)}
.dl-pom.dl-z{fill:var(--sky)}
.dl-pom.dl-u{fill:var(--sun)}
.dl-lb{font:800 12px var(--f-body);fill:var(--ink);text-anchor:middle}
.dl-lb.dl-tz{fill:var(--sky)} .dl-lb.dl-tu{fill:var(--sun-ink)}
.dl-cap{font:800 13px var(--f-body);fill:var(--ink);text-anchor:middle}
.dl-val{font:800 17px var(--f-display);fill:var(--ink);text-anchor:middle;paint-order:stroke;stroke:var(--card);stroke-width:4px}
.dl-cut{stroke:var(--berry);stroke-width:2.5;stroke-dasharray:5 3}
.dl-lv{transition:opacity .5s}

/* bare comparate: A verde, B albastru, diferența roșie */
.dl-bare{display:block;width:100%;height:auto;margin:2px 0}
.dl-bara{stroke:var(--card);stroke-width:1}
.dl-ba{fill:var(--leaf)} .dl-bb{fill:var(--sky)} .dl-bd{fill:var(--berry)}
.dl-bn{font:800 13px var(--f-body);fill:var(--ink);text-anchor:end}
.dl-bv{font:800 13px var(--f-body);fill:var(--ink);text-anchor:middle}
.dl-bv.dl-in{fill:var(--card)}
.dl-bv.dl-dv{fill:var(--berry)}
.dl-bv.dl-tot{font-size:15px}
.dl-ref{stroke:var(--muted);stroke-width:1.5;stroke-dasharray:4 3}
.dl-sep{stroke:var(--card);stroke-width:2}
.dl-acolada{fill:none;stroke:var(--muted);stroke-width:1.5}
.dl-dif{transition:opacity .5s}
.dl-bare.dl-fara-dif .dl-dif{opacity:0}
.dl-livezi .dl-en,.dl-bare .dl-en{text-anchor:end} .dl-bare .dl-st{text-anchor:start}
/* planșele desenate rămân la o mărime potrivită, centrate */
.dl-bare{max-width:330px;margin-left:auto;margin-right:auto}
.dl-livezi{max-width:400px;margin-left:auto;margin-right:auto}
/* stațiile cu planșe desenate: mai mult loc pentru exercițiu; laboratoarele: planșa îngustă */
html:not(.flow) .view .lesson{grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr)}
html:not(.flow) .view:has(.lv,.dp,.an) .lesson{grid-template-columns:minmax(0,1.55fr) minmax(0,.45fr)}
html:not(.flow) .view:has(.lv,.dp,.an) .notes{gap:8px}

/* coperta: un singur ceas (js/aplicatie.js) arată A, B, barele, apoi diferența */
.dl-anim[data-f="0"] .dl-lv-1,.dl-anim[data-f="1"] .dl-lv-0{opacity:.22}
.dl-anim .dl-bare{transition:opacity .5s}
.dl-anim[data-f="0"] .dl-bare,.dl-anim[data-f="1"] .dl-bare{opacity:0}
.dl-anim[data-f="2"] .dl-dif{opacity:0}
.dl-cov .dl-livezi{max-height:230px}

/* exercițiul cu paranteze (stația 8) și pașii (laboratorul 2) */
.dl-ex-e{margin:4px 0 8px;font:800 calc(26px * var(--fs)) var(--f-display);color:var(--ink)}
.dl-par{color:var(--berry);font-size:1.15em}
.dl-ex-p{display:flex;align-items:center;gap:8px;margin:6px 0;font-size:calc(18px * var(--fs));color:var(--ink);text-align:left;animation:dl-apare .45s ease-out both}
.dl-ex-p b{color:var(--leaf-deep)}
.dl-ex-p.rau{color:var(--berry)}
.dl-nr{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:1.6em;height:1.6em;border-radius:50%;background:var(--sun);color:var(--on-sun);font-size:.85em}
.dl-pasi{min-height:120px}

/* estimare (stația 11) */
.dl-est p{margin:4px 0;font-size:calc(18px * var(--fs));color:var(--ink)}
.dl-est b{color:var(--leaf-deep)}
.dl-est .dl-ok{color:var(--leaf-deep);background:var(--leaf-tint);border-radius:10px;padding:2px 8px}

/* ---------- tastatura cu cifre (laboratorul 1) ---------- */
.dl-tast{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}
.dl-key{min-width:calc(46px * var(--fs));min-height:calc(42px * var(--fs));border-radius:12px;border:3px solid var(--line);background:var(--card);color:var(--ink);font:800 calc(20px * var(--fs)) var(--f-display);box-shadow:0 4px 0 var(--line);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.dl-key:hover:not(:disabled){border-color:var(--sky);transform:translateY(-2px)}
.dl-key:active:not(:disabled){transform:translateY(2px);box-shadow:0 1px 0 var(--line)}
.dl-key:disabled{opacity:.4;cursor:not-allowed}
.dl-key.dl-sterge{color:var(--berry)}

/* ---------- laborator 1: două livezi ---------- */
.lv{display:grid;gap:8px}
.lv-pb{margin:0;font-weight:800;font-size:calc(16px * var(--fs));color:var(--ink);line-height:1.3}
.lv-pas{margin:0;font-weight:800;font-size:calc(16px * var(--fs));color:var(--sky);min-height:1.3em}
.lv-livezi{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:stretch}
html.flow .lv-livezi{grid-template-columns:minmax(0,1fr)}
.lv-card{border:3px solid var(--line);border-radius:14px;padding:6px 10px 8px;background:var(--card);color:var(--ink);display:flex;flex-direction:column;gap:2px}
.lv-card.alegibil{cursor:pointer;border-color:var(--sun);border-style:dashed}
.lv-card.alegibil:hover{transform:translateY(-2px)}
.lv-card.ales{border-style:solid;border-color:var(--berry);background:var(--berry-tint);box-shadow:0 4px 0 var(--berry)}
.lv-h{font:800 calc(17px * var(--fs)) var(--f-display);display:flex;align-items:center;gap:8px}
.lv-n{display:inline-flex;align-items:center;justify-content:center;width:1.5em;height:1.5em;border-radius:8px;background:var(--leaf);color:var(--on-leaf)}
.lv-card[data-k="1"] .lv-n{background:var(--sky);color:var(--card)}
/* rândul cu etichetele de sus: exact deasupra bucăților */
.lv-sus,.lv-arie{display:grid;grid-template-columns:2.2em 2.2fr 1fr;gap:4px;align-items:stretch}
.lv-sus span{text-align:center;font-weight:800;font-size:calc(14px * var(--fs))}
.lv-tz{color:var(--sky)} .lv-tu{color:var(--sun-ink)}
.lv-st{display:flex;align-items:center;justify-content:center;font-weight:800;font-size:calc(15px * var(--fs))}
.lv-buc{border-radius:10px;min-height:calc(58px * var(--fs));display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:4px 2px;min-width:0}
.lv-buc small{font-weight:800;font-size:calc(13px * var(--fs));color:var(--ink);white-space:nowrap}
.lv-z{background:var(--sky-tint);border:2px solid var(--sky)}
.lv-u{background:var(--sun-tint);border:2px solid var(--sun)}
.lv-v{display:inline-flex;align-items:center;justify-content:center;min-width:3.2em;height:calc(30px * var(--fs));border-radius:8px;font:800 calc(19px * var(--fs)) var(--f-display);color:var(--ink);box-sizing:border-box}
.lv-v.activ{border:3px dashed var(--berry);background:var(--card);color:var(--berry)}
.lv-v.bun{color:var(--leaf-deep);animation:dl-pop .35s ease-out}
.lv-tot{margin-left:auto;font-family:var(--f-body);font-weight:800;font-size:calc(15px * var(--fs));color:var(--muted)}
.lv-tot.bun{color:var(--ink)} .lv-tot b{color:var(--leaf-deep);font-size:1.15em}
.lv-difl{margin:0;display:flex;align-items:center;justify-content:center;gap:8px;font:800 calc(20px * var(--fs)) var(--f-display);color:var(--ink);visibility:hidden}
.lv-difl.on{visibility:visible}
.lv-act,.dp-act{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;padding-top:8px;border-top:2px dashed var(--line)}
.lv-act .verif,.dp-act .verif{margin-left:auto}
.lv-act .verif:disabled,.dp-act .verif:disabled,.dp-act .dp-sterge:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

/* ---------- laborator 2: un singur exercițiu ---------- */
.dp{display:grid;gap:10px}
.dp-pb{margin:0;font-weight:800;font-size:calc(17px * var(--fs));color:var(--ink);line-height:1.3}
.dp-linie{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px;min-height:calc(58px * var(--fs));border:3px dashed var(--sky);border-radius:14px;background:var(--sky-tint);padding:6px 10px}
.dp-gol{color:var(--muted);font-weight:800}
.dp-tok{display:inline-flex;align-items:center;justify-content:center;height:calc(40px * var(--fs));min-width:1.4em;padding:0 8px;border-radius:10px;font:800 calc(24px * var(--fs)) var(--f-display);animation:dl-pop .3s ease-out;box-sizing:border-box}
.dp-tok.n{background:var(--card);color:var(--ink);border:2px solid var(--line)}
.dp-tok.o{color:var(--sky)}
.dp-tok.p{color:var(--berry);font-size:calc(30px * var(--fs))}
.dp-rez{display:inline-flex;align-items:center;height:calc(40px * var(--fs));padding:0 10px;border-radius:10px;background:var(--leaf-tint);color:var(--leaf-deep);font:800 calc(24px * var(--fs)) var(--f-display);animation:dl-pop .4s ease-out}
.dp-placute{display:flex;flex-wrap:wrap;gap:10px 18px;justify-content:center;align-items:center}
.dp-gr{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.dp-et{font-weight:800;font-size:calc(13px * var(--fs));color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
/* plăcuțele: mari, la fel, ușor de atins */
.dp .dp-t{min-width:calc(54px * var(--fs));min-height:calc(48px * var(--fs));padding:2px 12px;border-radius:14px;border:3px solid var(--stripe);background:var(--card);color:var(--ink);font:800 calc(22px * var(--fs)) var(--f-display);box-shadow:0 5px 0 var(--stripe);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;--stripe:color-mix(in srgb,var(--leaf) 65%,var(--ink))}
.dp .dp-op{--stripe:color-mix(in srgb,var(--sky) 70%,var(--ink));color:var(--sky)}
.dp .dp-op[data-s="("],.dp .dp-op[data-s=")"]{color:var(--berry)}
.dp .dp-t:hover:not(:disabled){transform:translateY(-2px)}
.dp .dp-t:active:not(:disabled){transform:translateY(3px);box-shadow:0 2px 0 var(--stripe)}
.dp .dp-t:disabled{opacity:.35;transform:none;box-shadow:none;cursor:not-allowed}

/* ---------- 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:dl-pop .4s ease-out}
.an-q{font-size:calc(19px * var(--fs));font-weight:800;margin:10px 0;color:var(--ink);text-align:center;line-height:1.35}
.an-var{justify-content:center}
.an-var .chip{font-size:calc(20px * var(--fs));min-width:5.5em;min-height:calc(48px * var(--fs))}
.an-msg{min-height:1.5em;margin:8px 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-scor{font-family:var(--f-display);font-size:calc(54px * var(--fs));color:var(--leaf-deep);animation:dl-pop .5s}

@keyframes dl-pop{0%{transform:scale(.6)}70%{transform:scale(1.12)}100%{transform:none}}
@keyframes dl-apare{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* fără animații (accesibilitate) și mișcare redusă: stare statică, completă */
html.a-still .dl-anim *,html.a-still .dl-plansa *,html.a-still .lv *,html.a-still .dp *,html.a-still .an *{animation:none!important;transition:none!important}
html.a-still .dl-anim .dl-lv,html.a-still .dl-anim .dl-bare,html.a-still .dl-anim .dl-dif{opacity:1!important}
@media (prefers-reduced-motion: reduce){
  .dl-anim *,.dl-plansa *,.lv *,.dp *,.an *{animation:none!important;transition:none!important}
  .dl-anim .dl-lv,.dl-anim .dl-bare,.dl-anim .dl-dif{opacity:1!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}