/* aplicatie.css — stiluri proprii lecției „Probleme cu doi multipli de zece” (doar variabile de culoare). */

/* ---------- planșe desenate ---------- */
.plate .pz-cov,.plate .pz-arie-c,.plate .pz-rz,.plate .pz-desc,.plate .pz-reg,.plate .pz-ctx,.plate .pz-tb,.plate .pz-op,.plate .pz-axa-c,.plate .pz-banda{
  background:var(--card);color:var(--ink);border-radius:12px;padding:14px;font-weight:800}
.pz-n{white-space:nowrap}
/* zerourile colorate după proveniență: albastru = din factori, roșu = din faptul de bază */
.pz-zf{font-style:normal;color:var(--sky)}
.pz-zc{font-style:normal;color:var(--berry);text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:4px}
.pz-c{color:var(--sun-ink);background:var(--sun-tint);border-radius:8px;padding:0 6px}
.pz-d{color:var(--sky);background:var(--sky-tint);border-radius:8px;padding:0 6px}

/* copertă: un singur ceas schimbă exemplul */
.pz-cov{text-align:center;padding:20px 14px!important}
.pz-cov-q{font-family:"Baloo 2",system-ui,sans-serif;font-size:calc(50px * var(--fs));line-height:1.1}
.pz-cov-f{margin-top:8px;font-size:calc(22px * var(--fs));color:var(--muted)}
.pz-cov-p{font-family:"Baloo 2",system-ui,sans-serif;font-size:calc(46px * var(--fs));line-height:1.15}
.pz-cov-nota{margin:6px 0 0;min-height:2.6em;color:var(--muted);font-size:calc(15px * var(--fs))}
.pz-cov.nou .pz-cov-p,.pz-cov.nou .pz-cov-q{animation:pop .4s ease-out}

/* stația 1: modelul de arie */
.pz-arie-c{display:flex;justify-content:center}
.pz-arie{width:100%;max-width:300px;height:auto;display:block}

/* stația 2: rânduri de zerouri — rândurile apar pe rând (ceasul din aplicatie.js); fără animații se văd toate */
.pz-rz{display:grid;gap:10px}
.pz-rz-r{display:grid;grid-template-columns:1fr auto 1.1fr;align-items:center;column-gap:10px;border-radius:12px;padding:6px 10px;background:var(--paper);transition:opacity .35s,transform .35s,background .35s}
.pz-rz-f{text-align:right;font-size:calc(26px * var(--fs))}
.pz-rz-eq{color:var(--muted);font-size:calc(24px * var(--fs))}
.pz-rz-p{font-family:"Baloo 2",system-ui,sans-serif;font-size:calc(30px * var(--fs))}
.pz-rz-n{grid-column:1/-1;text-align:center;font-size:calc(13px * var(--fs));color:var(--muted)}
.pz-rz-r.ascuns{opacity:0;transform:translateY(8px)}
.pz-rz-r.acum{background:var(--sun-tint)}
.pz-rz-r.acum .pz-rz-p .pz-zf:last-child{display:inline-block;animation:slide-z .6s ease-out}
.pz-rz.static .pz-rz-r{opacity:1!important;transform:none!important}
@keyframes slide-z{0%{transform:translateY(-22px);opacity:0}100%{transform:none;opacity:1}}

/* stația 3: descompunerea */
.pz-desc{text-align:center}
.pz-desc-r{margin:6px 0;font-size:calc(22px * var(--fs))}

/* stația 4: regula în doi pași */
.pz-reg{text-align:center}
.pz-reg-top{font-family:"Baloo 2",system-ui,sans-serif;font-size:calc(40px * var(--fs));line-height:1.1}
.pz-reg-r{display:flex;align-items:stretch;justify-content:center;gap:10px;margin:10px 0}
.pz-reg-b{display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:12px;padding:6px 12px;font-size:calc(22px * var(--fs))}
.pz-reg-b small{font-size:calc(13px * var(--fs));color:var(--muted)}
.pz-reg-b.c{background:var(--sun-tint)} .pz-reg-b.z{background:var(--sky-tint)}
.pz-reg-plus{align-self:center;color:var(--muted);font-size:calc(24px * var(--fs))}
.pz-reg-res{font-family:"Baloo 2",system-ui,sans-serif;font-size:calc(38px * var(--fs))}

/* stațiile 5 și 9: contextele problemelor */
.pz-ctx{display:grid;gap:8px}
.pz-ctx p{margin:0;display:flex;align-items:center;gap:12px;background:var(--paper);border-radius:12px;padding:8px 12px;font-size:calc(19px * var(--fs))}
.pz-ctx-e{font-size:1.5em;line-height:1}
.pz-ctx .pz-ctx-r{justify-content:center;background:var(--leaf-tint);font-size:calc(24px * var(--fs))}

/* stația 6: tabloul de ordine */
.pz-tb{display:grid;grid-template-columns:auto repeat(5,minmax(0,1fr));gap:4px;align-items:center;text-align:center}
.pz-tb-h{font-size:calc(14px * var(--fs));color:var(--muted)}
.pz-tb-f{text-align:right;padding-right:8px;font-size:calc(17px * var(--fs));white-space:nowrap}
.pz-tb-c{display:flex;align-items:center;justify-content:center;height:calc(40px * var(--fs));border:2px solid var(--line);border-radius:8px;font-family:"Baloo 2",system-ui,sans-serif;font-size:calc(24px * var(--fs))}
.pz-tb-c.gol{border-style:dashed;opacity:.5}
.pz-tb-c.zf{background:var(--sky-tint);color:var(--sky);border-color:var(--sky)}
.pz-tb-c.zc{background:var(--berry-tint);color:var(--berry);border-color:var(--berry)}
.pz-leg{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin:8px 0 0;font-weight:800;font-size:calc(14px * var(--fs));background:var(--card);color:var(--ink);border-radius:10px;padding:4px 8px}

/* stația 8: adun sau înmulțesc */
.pz-op{display:grid;gap:10px}
.pz-op p{margin:0;display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;background:var(--paper);border-radius:12px;padding:10px 12px;font-size:calc(18px * var(--fs))}
.pz-op b{color:var(--berry)}
.pz-op-s{border-radius:999px;padding:2px 12px;font-size:calc(22px * var(--fs))}
.pz-op-s.x{background:var(--sun);color:var(--on-sun)} .pz-op-s.p{background:var(--sky-tint);color:var(--ink)}

/* stația 10: axa numerelor */
.pz-axa{width:100%;height:auto;display:block}

/* stația 11: modelul-bandă */
.pz-banda{text-align:center}
.pz-banda-t{font-size:calc(20px * var(--fs));margin-bottom:8px}
.pz-banda-b{display:flex;height:calc(48px * var(--fs));border:3px solid var(--ink);border-radius:10px;overflow:hidden}
.pz-banda-b span{display:flex;align-items:center;justify-content:center;font-size:calc(17px * var(--fs))}
.pz-banda-b .o{background:var(--sky-tint);border-right:3px solid var(--ink)}
.pz-banda-b .l{background:var(--sun-tint);color:var(--sun-ink);font-size:calc(24px * var(--fs))}
.pz-banda-n{margin-top:8px;font-size:calc(18px * var(--fs));color:var(--leaf-deep)}

/* ---------- laborator 1: fabrica de zerouri ---------- */
.fz-top,.cz-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))}
.fz-made{display:flex;gap:6px}
.fz-dot{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;border:2px solid var(--line);font-size:13px}
.fz-dot.acum{border-color:var(--sun);background:var(--sun-tint);color:var(--sun-ink)}
.fz-dot.gata{border-color:var(--leaf);background:var(--leaf-tint);color:var(--leaf-deep)}
.fz-cmd{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;margin:0 0 6px;font-weight:800;font-size:calc(24px * var(--fs));color:var(--ink)}
.fz-ab{font-family:"Baloo 2",system-ui,sans-serif;font-size:calc(28px * var(--fs));line-height:1.1}
.fz-eq{color:var(--muted)}
/* fiecare rând: eticheta și plăcuțele pe aceeași linie, aceeași înălțime */
.fz-rand{display:flex;align-items:center;gap:8px;padding:4px 8px;margin-bottom:5px;border:2px solid var(--line);border-radius:14px;background:var(--card)}
.fz-rand.bun{border-color:var(--leaf);background:var(--leaf-tint)}
.fz-rand.rau{border-color:var(--berry);animation:shake .45s}
.fz-et{flex:0 0 calc(112px * var(--fs));display:flex;flex-direction:column;line-height:1.15;color:var(--ink)}
.fz-et small{font-size:calc(12px * var(--fs));font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}
.fz-et b{font-size:calc(17px * var(--fs));white-space:nowrap}
.fz-ch{display:flex;flex-wrap:nowrap;gap:6px;flex:1;min-width:0}
.fz .fz-ch .chip.fz-t{flex:1 1 0;min-width:0;padding:2px 6px;min-height:calc(40px * var(--fs));font-size:calc(18px * var(--fs));white-space:nowrap}
.fz .fz-ch .chip.fz-t,.cz .cz-var .chip.cz-t{min-width:calc(72px * var(--fs));min-height:calc(44px * var(--fs));padding:2px 12px;font-size:calc(19px * var(--fs));font-weight:800;color:var(--ink);border:3px solid var(--stripe);border-radius:14px;box-shadow:0 4px 0 var(--stripe);cursor:pointer;justify-content:center}
.fz .fz-ch .chip.fz-t:hover,.cz .cz-var .chip.cz-t:hover{transform:translateY(-2px)}
.fz .fz-ch .chip.fz-t.ales,.cz .cz-var .chip.cz-t.ales{background:var(--berry);border-color:var(--berry);color:var(--card);box-shadow:0 4px 0 var(--ink);transform:translateY(-3px)}
.fz .fz-ch .chip.fz-t:disabled{transform:none;cursor:default}
.cz .cz-var .chip.cz-t.good{background:var(--leaf);border-color:var(--leaf);color:var(--card);box-shadow:0 4px 0 var(--leaf-deep)}
.cz .cz-var .chip.cz-t.bad{background:var(--berry-tint);border-color:var(--berry);color:var(--berry);box-shadow:none}
.fz-act,.cz-act{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-top:4px;padding-top:6px;border-top:2px dashed var(--line)}
.fz-act .verif,.cz-act .btn{margin-left:auto}
.fz-act .verif:disabled,.cz-act .verif:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.fz-res{font-weight:800;color:var(--ink);font-size:calc(20px * var(--fs))}
.fz-prod{display:inline-block;animation:pop .45s ease-out}
.fz-prod .pz-n{font-family:"Baloo 2",system-ui,sans-serif;font-size:1.25em}

/* ---------- laborator 2: capcana zeroului ---------- */
.cz-ex{text-align:center;font-family:"Baloo 2",system-ui,sans-serif;font-weight:800;font-size:calc(44px * var(--fs));line-height:1.1;color:var(--ink)}
.cz-q{text-align:center;margin:4px 0 8px;font-weight:800;font-size:calc(19px * var(--fs));color:var(--ink)}
.cz-var{justify-content:center}
.cz .cz-var .chip.cz-t{min-width:calc(58px * var(--fs))}
.cz-rez{min-height:calc(78px * var(--fs));margin-top:8px;text-align:center;color:var(--ink)}
.cz-hint{color:var(--muted);font-weight:700}
.cz-calc{display:flex;justify-content:center;align-items:center;gap:18px;flex-wrap:wrap;font-weight:800;font-size:calc(22px * var(--fs));animation:pop .4s ease-out}
.cz-f{background:var(--sun-tint);border-radius:10px;padding:2px 10px}
.cz-cu0{color:var(--berry)}
.cz-p .pz-n{font-family:"Baloo 2",system-ui,sans-serif;font-size:1.25em}
.cz-msg{margin:6px 0 0;font-weight:800}
.cz-msg.bine{color:var(--leaf-deep)} .cz-msg.rau{color:var(--berry)}
.cz-final{text-align:center}
.cz-mare{font-family:"Baloo 2",system-ui,sans-serif;font-size:calc(54px * var(--fs));color:var(--leaf-deep);animation:pop .5s}

/* ---------- 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:pop .4s ease-out}
.an-q{font-size:calc(23px * var(--fs));font-weight:800;margin:12px 0;color:var(--ink);text-align:center;line-height:1.3}
.an-var{justify-content:center}
.an-var .chip{font-size:calc(20px * var(--fs));min-width:5.5em;justify-content:center;font-weight:800}
.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:"Baloo 2",system-ui,sans-serif;font-size:calc(54px * var(--fs));color:var(--leaf-deep);animation:pop .5s}

/* fără animații (accesibilitate) și mișcare redusă: totul se vede complet, fără mișcare */
html.a-still .pz-rz-r,html.a-still .pz-cov *,html.a-still .fz-prod,html.a-still .cz-calc{animation:none!important;transition:none!important}
@media (prefers-reduced-motion: reduce){
  .pz-rz-r,.pz-rz-r *,.pz-cov *,.fz-prod,.fz-rand,.cz-calc,.cz-mare,.an-scor,.an-serie{animation:none!important;transition: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}