/* aplicatie.css — stiluri proprii lecției „Probleme cu scăderea numerelor mari” (doar variabile de culoare).
   Prefixe proprii: sc- (desene comune), ci- (laboratorul „Care întrebare?”), si- (laboratorul împrumutului),
   an- (antrenament). */

/* ---------- carduri și note ---------- */
.sc-card{background:var(--card);color:var(--ink);border-radius:12px;padding:14px 16px;text-align:center}
.plate .sc-card{font-weight:800}
.sc-nota{margin:10px 0 0;font-size:calc(15px * var(--fs));font-weight:800;color:var(--muted);line-height:1.3}
.sc-nota b{color:var(--ink)}
.sc-story{margin:0 0 10px;font-size:calc(16px * var(--fs));line-height:1.6;text-align:left}
.sc-story mark{border-radius:6px;padding:0 4px;color:var(--ink)}
.sc-m1{background:var(--sky-tint)} .sc-m2{background:var(--sun-tint)} .sc-mq{background:var(--berry-tint)}

/* ---------- scăderea în coloană (școala românească) ----------
   o coloană pe ordin + o coloană pentru semn, la DREAPTA primului număr; linia sub al doilea număr;
   rândul de deasupra arată valoarea nouă a cifrei din care s-a împrumutat (cifra veche e tăiată) */
.sc-col{--w:1.05em;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:1.12;font-variant-numeric:tabular-nums;color:var(--ink);vertical-align:middle}
.sc-col>span,.sc-col>button{display:flex;align-items:center;justify-content:center;box-sizing:border-box;min-width:0}
.sc-col.sc-mic{font-size:calc(26px * var(--fs))}
.sc-col .sc-mii{padding-right:.16em}                          /* spațiu între clasa miilor și clasa unităților */
.sc-h{font-size:.38em;font-weight:900;padding:2px 0;border-radius:6px 6px 0 0}
.sc-h.sc-cu{color:var(--sky);background:var(--sky-tint)}
.sc-h.sc-cm{color:var(--leaf-deep);background:var(--leaf-tint)}
.sc-col .sc-h:empty{background:none}
.sc-imp{font-size:.5em;font-weight:900;color:var(--berry);height:1.35em;align-items:flex-end!important;letter-spacing:-.04em}
.sc-taiat{position:relative;color:var(--muted)!important}
.sc-taiat::after{content:"";position:absolute;left:12%;right:12%;top:50%;border-top:.09em solid var(--berry);transform:rotate(-28deg)}
.sc-semn{color:var(--berry)}
.sc-r{border-top:4px solid var(--ink);min-height:1.12em}
.sc-r.sc-gol::after{content:"";width:.6em;height:.86em;border:2px dashed var(--muted);border-radius:6px;opacity:.7}
.sc-col .sc-act{background:var(--sun-tint)}
.sc-col .sc-h.sc-act{background:var(--sun);color:var(--on-sun)}

/* coperta, stația 6 și stația 7: coloana animată (înălțimea rezervată, ca textul să nu sară) */
.sc-colanim .sc-colbox{min-height:calc(40px * 5.3 * 1.12 * var(--fs))}
.sc-cov .sc-col{font-size:calc(44px * var(--fs))}
.sc-cov .sc-colbox{min-height:calc(44px * 5.3 * 1.12 * var(--fs))}
.sc-cov-pb{margin:0 0 8px;font-size:calc(15px * var(--fs));font-weight:800;color:var(--muted);line-height:1.35}
.sc-cov-pb b{color:var(--ink)}
.sc-anim-txt{margin:10px 0 0;min-height:2.6em;display:block;text-align:center;font-size:calc(17px * var(--fs));font-weight:800;color:var(--muted);line-height:1.3}
.sc-anim-txt b{color:var(--ink)}

/* ---------- bare comparate ---------- */
.sc-bare{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px 10px;align-items:center;text-align:left;margin:4px 0}
.sc-bn{font-weight:900;font-size:calc(15px * var(--fs));color:var(--muted)}
.sc-bb{min-width:0}
.sc-bar{display:flex;align-items:stretch;min-height:calc(44px * var(--fs))}
.sc-seg{display:flex;align-items:center;justify-content:center;min-width:0;padding:4px 6px;border:3px solid var(--ink);font-weight:900;font-size:calc(15px * var(--fs));color:var(--ink);white-space:nowrap;overflow:hidden}
.sc-seg+.sc-seg{border-left-width:0}
.sc-seg:first-child{border-radius:10px 0 0 10px}
.sc-seg:last-child{border-radius:0 10px 10px 0}
.sc-seg:only-child{border-radius:10px}
.sc-plin{background:var(--sky-tint)}
.sc-alt{background:var(--sun-tint)}
.sc-tinta{background:var(--leaf-tint)}
.sc-nec{border-style:dashed;color:var(--berry);background:var(--card)}
.sc-luat{background:repeating-linear-gradient(-45deg,var(--berry-tint) 0 8px,var(--card) 8px 14px);color:var(--berry);text-decoration:line-through}

/* stația 4: trei sensuri */
.sc-sens{display:grid;gap:10px}
.sc-sens-c{display:grid;gap:4px;border-radius:12px;padding:10px 12px;border:3px solid var(--line);text-align:left}
.sc-sens-c b{font-size:calc(19px * var(--fs))}
.sc-sens-c span{font-size:calc(15px * var(--fs));color:var(--muted)}
.sc-k1{background:var(--sky-tint);border-color:var(--sky)}
.sc-k2{background:var(--sun-tint);border-color:var(--sun)}
.sc-k3{background:var(--leaf-tint);border-color:var(--leaf)}

/* stația 10: proba */
.sc-proba{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}
.sc-sag{font-size:calc(28px * var(--fs));color:var(--muted);font-weight:900}

/* stația 11: axa numerică */
.sc-axa{width:100%;height:auto;display:block;font-family:var(--f-body)}
.sc-ax-l{stroke:var(--ink);stroke-width:3}
.sc-ax-t{stroke:var(--ink);stroke-width:2}
.sc-ax-n{fill:var(--muted);font-size:12px;font-weight:800;text-anchor:middle}
.sc-ax-z{fill:var(--sun);opacity:.85}
.sc-ax-e{fill:var(--ink);font-size:15px;font-weight:900;text-anchor:middle}
.sc-ax-ok{fill:var(--leaf);stroke:var(--card);stroke-width:2}
.sc-ax-rau{fill:var(--berry);stroke:var(--card);stroke-width:2}
.sc-ax-x{fill:var(--berry);font-size:13px;font-weight:900;text-anchor:middle}
.sc-ax-v{fill:var(--leaf-deep);font-size:13px;font-weight:900;text-anchor:middle}

/* ---------- laboratoarele: lățimea întreagă a scenei ---------- */
html:not(.flow) .view:has(.ci,.si) .lesson{grid-template-columns:minmax(0,1fr)}
.view:has(.ci,.si) .work{display:none}
html:not(.flow) .view:has(.an) .lesson{grid-template-columns:minmax(0,1.45fr) minmax(0,.55fr)}
.ci,.si,.an{display:grid;gap:8px}
.ci .chip,.si .chip{display:inline-flex;align-items:center;justify-content:center;min-height:calc(46px * var(--fs));padding:0 14px;font-family:var(--f-display);font-size:calc(20px * var(--fs));font-weight:800;color:var(--ink);border:3px solid var(--stripe);border-radius:12px;box-shadow:0 4px 0 var(--stripe);cursor:pointer}
.ci .chip.ales,.si .chip.ales{background:var(--berry);border-color:var(--berry);color:var(--card);box-shadow:0 4px 0 var(--ink);transform:translateY(-2px)}
.ci .chip:disabled,.si .chip:disabled{opacity:.35;box-shadow:none;transform:none;cursor:default}
.ci-act,.si-act{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;padding-top:8px;border-top:2px dashed var(--line)}
.ci-act .verif,.ci-act .ci-next{margin-left:auto}
.ci-act .verif:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.ci-et{font-weight:900;color:var(--muted);font-size:calc(14px * var(--fs));text-transform:uppercase;letter-spacing:.04em}

/* ---------- laborator 1: Care întrebare? ---------- */
.ci-top{display:flex;align-items:center;gap:6px 10px;flex-wrap:wrap;background:var(--sun-tint);border-radius:12px;padding:6px 12px;color:var(--ink);font-size:calc(16px * var(--fs))}
.ci-nr{display:inline-block;background:var(--sun);color:var(--on-sun);border-radius:8px;padding:0 8px;font-weight:900}
.ci-date{display:flex;flex-wrap:wrap;gap:4px 14px;flex:1 1 auto;justify-content:flex-end}
.ci-dat{display:inline-flex;align-items:center;gap:6px;font-weight:800;font-size:calc(15px * var(--fs));color:var(--muted)}
.ci-dat i{font-style:normal}
.ci-dat b{color:var(--ink);font-family:var(--f-display);font-size:1.12em}
.ci-qs{display:grid;gap:7px}
.ci-q{display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;align-items:center;gap:10px;width:100%;text-align:left;border:3px solid var(--line);background:var(--card);color:var(--ink);border-radius:14px;padding:4px 10px;font:inherit;font-weight:800;font-size:calc(16px * var(--fs));line-height:1.25;cursor:pointer}
.ci-q:hover:not(:disabled){border-color:var(--sky)}
.ci-q.ales{border-color:var(--berry);background:var(--berry-tint)}
.ci-q.ok{border-color:var(--leaf);background:var(--leaf-tint);cursor:default}
.ci-q:disabled{opacity:1}
.ci-qn{display:inline-flex;align-items:center;justify-content:center;width:1.7em;height:1.7em;border-radius:50%;background:var(--ink);color:var(--card);font-weight:900}
.ci-slot{display:inline-flex;align-items:center;justify-content:center;min-width:9.6em;height:calc(38px * var(--fs));padding:0 10px;border:3px dashed var(--muted);border-radius:10px;background:var(--card);color:var(--muted);font-family:var(--f-display);font-weight:800;font-size:calc(18px * var(--fs));white-space:nowrap;box-sizing:border-box}
.ci-slot.plin{border-style:solid;border-color:var(--sky);color:var(--ink)}
.ci-q.ok .ci-slot{border-color:var(--leaf);color:var(--ink)}
.ci-slot b{color:var(--leaf-deep);margin-left:.25em}
.ci-sens{font-size:calc(13px * var(--fs));font-weight:900;border-radius:99px;padding:2px 10px;border:2px solid;white-space:nowrap}
.ci-rand{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.ci-carti{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.ci-ajutor{color:var(--sky);font-weight:800;font-size:calc(14px * var(--fs))}

/* ---------- laborator 2: împrumutul peste zerouri ---------- */
.si-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-weight:800;color:var(--muted);font-size:calc(15px * var(--fs))}
.si-top>b{font-family:var(--f-display);font-size:calc(22px * var(--fs));color:var(--ink)}
.si-nr{margin-left:auto}
.si-nr b{color:var(--berry)}
.si-main{display:grid;grid-template-columns:auto minmax(0,1fr);gap:18px;align-items:center}
html.flow .si-main{grid-template-columns:minmax(0,1fr)}
.si-col{border:2px solid var(--line);padding:6px 12px}
.si-col .sc-col{font-size:calc(42px * var(--fs))}
/* cifrele de sus sunt butoane mari: se apasă cifra care „dă 1” */
.sc-col .sc-tasta{font:inherit;color:inherit;background:var(--card);border:3px solid var(--leaf);border-radius:10px;box-shadow:0 4px 0 var(--leaf-deep);margin:2px 1px;padding:0;cursor:pointer;line-height:1.05}
.sc-col .sc-tasta:hover:not(:disabled){border-color:var(--berry);transform:translateY(-1px)}
.sc-col .sc-tasta:disabled{box-shadow:none;border-color:transparent;cursor:default;background:transparent}
.sc-col .sc-tasta.sc-act{background:var(--sun-tint)}
.si-dr{display:grid;gap:10px}
.si-pas{margin:0;font-weight:900;font-size:calc(19px * var(--fs));min-height:2.7em;color:var(--ink);line-height:1.35}
.si-pas b{color:var(--berry)}
.si-proba{font-size:calc(15px * var(--fs));color:var(--leaf-deep)}
.si-pad{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.si .chip.si-d{padding:0}
.si-leg{font-size:calc(13px * var(--fs));font-weight:800;color:var(--muted)}
.si-l1{text-decoration:line-through;text-decoration-color:var(--berry);text-decoration-thickness:2px}
.si-l2{color:var(--berry)}

/* ---------- laborator 3: antrenament rapid ---------- */
.an-top{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;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:sc-pop .4s ease-out}
.an-q{font-size:calc(20px * var(--fs));font-weight:800;margin:6px 0;color:var(--ink);text-align:center;line-height:1.35}
.an-var{justify-content:center}
.an .an-var .chip{font-family:var(--f-display);font-size:calc(19px * var(--fs));min-width:7.5em;min-height:calc(48px * var(--fs));border:3px solid var(--stripe);box-shadow:0 4px 0 var(--stripe)}
.an-msg{min-height:2.6em;margin:4px 0 0;text-align:center;font-weight:800;line-height:1.3}
.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:sc-pop .5s}

@keyframes sc-pop{0%{transform:scale(.6)}70%{transform:scale(1.15)}100%{transform:none}}
@media (prefers-reduced-motion: reduce){
  .an-serie,.an-scor{animation:none!important}
  .an-bar i{transition:none!important}
}
html.a-still .an-serie,html.a-still .an-scor{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}