/* aplicatie.css — stiluri proprii lecției „Probleme cu fracții dintr-un grup” (doar variabile de culoare). */

/* ---------- fracția etajată: numărătorul peste numitor ---------- */
.fr{display:inline-flex;flex-direction:column;align-items:center;vertical-align:middle;line-height:1.02;font-weight:800;margin:0 .08em;font-size:.92em}
.fr>b{font-weight:inherit;padding:0 .14em}
.fr>i{font-style:normal;border-top:.11em solid currentColor;padding:.04em .14em 0;align-self:stretch;text-align:center}
.fr .fr-l{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;text-decoration:none}
.fr.mare{font-size:calc(26px * var(--fs));font-family:var(--f-display)}
.chip .fr,.pool-item .fr,.af-rand .fr,.ocard .fr{font-size:1em}
.ans .fr{font-size:1.1em}
.task h3 .fr,.big .fr,.key .fr,.fact .fr,.say .fr,.qcard h2 .fr,.cover .q .fr{font-size:.8em}

/* ---------- planșele ---------- */
.plate .fg-card,.plate .fg-leg{background:var(--card);color:var(--ink);border-radius:12px;padding:12px 14px;font-weight:800}
.fg-card{text-align:center}
.fg-ec{margin:8px 0 0;font-size:calc(18px * var(--fs))}
.fg-ec b{color:var(--leaf-deep)}

/* gruparea animată: fiecare bilă are două locuri (la grămadă / în grupa ei); clasa s0, s1, s2 alege starea */
.fg-svg{display:block;width:100%;height:auto;overflow:visible}
.fg-b{fill:var(--card);stroke:var(--ink);stroke-width:2.5px;transform:translate(calc(var(--x0) * 1px),calc(var(--y0) * 1px));
  transition:transform .9s cubic-bezier(.45,0,.25,1),fill .35s,opacity .35s;transition-delay:calc(var(--d) * 18ms),0s,0s}
.fg-svg.s1 .fg-b,.fg-svg.s2 .fg-b{transform:translate(calc(var(--x1) * 1px),calc(var(--y1) * 1px))}
.fg-tot{fill:var(--sky-tint);stroke:var(--sky);stroke-width:2.5px;stroke-dasharray:7 5;transition:opacity .4s}
.fg-f{fill:none;stroke:var(--line);stroke-width:3px;opacity:0;transition:opacity .4s .5s,fill .35s,stroke .35s}
.fg-svg.s0 .fg-f{transition-delay:0s}
.fg-svg.s1 .fg-tot,.fg-svg.s2 .fg-tot{opacity:0}
.fg-svg.s1 .fg-f,.fg-svg.s2 .fg-f{opacity:1;stroke:var(--sky)}
/* grupele luate se colorează */
.fg-luat.s2 .fg-f.on{fill:var(--sun-tint);stroke:var(--sun-edge)}
.fg-luat.s2 .fg-b.k{fill:var(--sun)}
/* grupele consumate dispar: rămâne doar rama punctată */
.fg-mancat.s2 .fg-f.on{stroke:var(--berry);stroke-dasharray:6 5}
.fg-mancat.s2 .fg-b.k{opacity:.12}
.fg-mancat.s2 .fg-f:not(.on){fill:var(--leaf-tint);stroke:var(--leaf)}

/* rândurile de sub animație: ceasul aprinde rândul care se potrivește cu desenul */
.fg-pasi{list-style:none;counter-reset:pas;margin:8px 0 0;padding:0;display:grid;gap:4px;text-align:left;font-size:calc(15px * var(--fs))}
.fg-pasi li{counter-increment:pas;display:flex;align-items:center;gap:6px;padding:3px 10px;border-radius:10px;color:var(--muted);opacity:.55;transition:opacity .3s,background .3s}
.fg-pasi li::before{content:counter(pas);flex:0 0 1.5em;height:1.5em;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:var(--line);color:var(--ink);font-size:.8em}
.fg-pasi li.on{opacity:1;color:var(--ink)}
.fg-pasi li.cur{background:var(--sun-tint)}
.fg-pasi li.cur::before{background:var(--sun);color:var(--on-sun)}

/* modelul-bandă */
.fg-banda{display:block;width:100%;height:auto;overflow:visible}
.fg-seg{fill:var(--card);stroke:var(--ink);stroke-width:2.5px}
.fg-seg.on{fill:var(--sun)}
.fg-seg.taiat{fill:var(--berry-tint)}
.fg-x{stroke:var(--berry);stroke-width:3px;stroke-linecap:round;fill:none}
.fg-tx{fill:var(--ink);font-weight:800;font-size:20px;font-family:var(--f-body)}
.fg-tx.necunoscut{fill:var(--muted)}
.fg-tx.jos{fill:var(--leaf-deep)}
.fg-acol{fill:none;stroke:var(--ink);stroke-width:2.5px;stroke-linecap:round}
.fg-acol.jos{stroke:var(--leaf-deep)}

/* stația 4: ce arată numărătorul și numitorul (etichetele stau exact în dreptul numerelor) */
.fg-leg{display:grid;grid-template-columns:auto 1fr;align-items:center;column-gap:14px;row-gap:0}
.fl-n,.fl-d{font-family:var(--f-display);font-size:calc(52px * var(--fs));line-height:1.1;text-align:center;padding:0 10px;color:var(--ink)}
.fl-n{color:var(--sun-ink)}
.fl-d{border-top:5px solid var(--ink);color:var(--sky)}
.fl-t{font-size:calc(16px * var(--fs));line-height:1.25}
.fl-t::before{content:"← ";color:var(--muted)}
.fl-t:nth-of-type(2) b{color:var(--sun-ink)}
.fl-t:nth-of-type(4) b{color:var(--sky)}
.fl-din{grid-column:1/-1;margin-top:8px;text-align:center;font-size:calc(16px * var(--fs));color:var(--muted)}

/* ---------- laboratoare: părți comune ---------- */
.lb-top{display:flex;justify-content:space-between;align-items:center;gap:8px 14px;flex-wrap:wrap;font-weight:800;color:var(--muted);font-size:calc(14px * var(--fs))}
.lb-tinta{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:calc(19px * var(--fs));background:var(--sun-tint);border:2px solid var(--sun-edge);border-radius:12px;padding:2px 12px}
.lb-tinta .fr.mare{font-size:calc(22px * var(--fs))}
.lb-et{margin:6px 0 6px;font-weight:800;color:var(--ink);font-size:calc(15px * var(--fs))}
.lb-et b{color:var(--sky)}
.lb-rand{display:flex;align-items:center;gap:6px 14px;flex-wrap:wrap;margin:8px 0 4px}
.lb-rand .lb-et{margin:0}
/* plăcuțele de ales: mari, la fel, cu starea „ales” clară */
.lb-ch{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.task .lb-ch .chip.lb-t{min-width:calc(46px * var(--fs));min-height:calc(42px * var(--fs));padding:2px 12px;font-size:calc(18px * 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;justify-content:center}
.task .lb-ch .chip.lb-t:hover{transform:translateY(-2px)}
.task .lb-ch .chip.lb-t.ales{background:var(--sky);border-color:var(--sky);color:var(--card);box-shadow:0 4px 0 var(--ink);transform:translateY(-2px)}
/* butoanele de jos: separate de plăcuțe */
.lb-act{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-top:8px;padding-top:8px;border-top:2px dashed var(--line)}
.lb-act .verif{margin-left:auto}
.lb-act .verif:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

/* laborator 1: împarte în grupe */
.gl-main{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:16px;align-items:center;margin-top:4px}
.gl-ctrl .lb-ch{min-height:calc(46px * var(--fs))}
.gl-ctrl .lb-et{margin:4px 0}
.gl-gol{color:var(--muted);font-weight:700;font-size:calc(14px * var(--fs))}
.gl-viz{background:var(--card);border:2px solid var(--line);border-radius:14px;padding:6px}
.gl-viz .fg-svg{max-height:calc(170px * var(--fs))}
.gl-rez{display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap;margin:4px 0 0;min-height:calc(40px * var(--fs));text-align:center;font-weight:800;color:var(--ink);font-size:calc(16px * var(--fs))}
.gl-rez b{color:var(--leaf-deep)}

/* laborator 2: ce a rămas? */
.rm-pov{margin:6px 0 2px;font-weight:700;color:var(--ink);font-size:calc(16px * var(--fs));line-height:1.5}
.rm-pov .fr.mare{font-size:calc(20px * var(--fs))}
.rm-ok{color:var(--leaf-deep)}
.rm-gr{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;align-items:stretch}
.rm-g{display:grid;grid-template-columns:repeat(3,auto);align-content:center;justify-content:center;gap:2px;min-width:calc(64px * var(--fs));padding:6px 8px;border:3px solid var(--sky);border-radius:14px;background:var(--card);box-shadow:0 4px 0 var(--line);cursor:pointer;transition:background .25s,border-color .25s}
.rm-g:hover{transform:translateY(-2px)}
.rm-o{display:inline-block;font-size:calc(20px * var(--fs));line-height:1.15;transition:transform .35s,opacity .35s}
.rm-g.scos{border-style:dashed;border-color:var(--berry);background:var(--berry-tint);box-shadow:none}
.rm-g.scos .rm-o{transform:scale(.4);opacity:.15}
.rm-g.ramas{border-color:var(--leaf);background:var(--leaf-tint)}

/* ---------- 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(22px * var(--fs));font-weight:800;margin:12px 0;color:var(--ink);text-align:center;line-height:1.45}
.an-var{justify-content:center}
.an-var .chip{font-size:calc(20px * var(--fs));min-width:4.5em;justify-content:center}
.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-viz{max-width:calc(380px * var(--fs));margin:6px auto 0}
.an-viz:empty{display:none}
.an-final{text-align:center}
.an-scor{font-family:var(--f-display);font-size:calc(54px * var(--fs));color:var(--leaf-deep);animation:pop .5s}
@keyframes pop{0%{transform:scale(.6)}70%{transform:scale(1.15)}100%{transform:none}}

/* laboratoarele au nevoie de loc: planșa rămâne îngustă */
html:not(.flow) #v-s4 .lesson,html:not(.flow) #v-s12 .lesson{grid-template-columns:minmax(0,1.5fr) minmax(0,.5fr)}
html:not(.flow) #v-s8 .lesson,html:not(.flow) #v-s9 .lesson{grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr)}
/* telefon: laboratorul pe o coloană */
html.flow .gl-main{grid-template-columns:1fr}

/* fără animații (accesibilitate) și mișcare redusă: totul static, în starea completă */
html.a-still .fg-b,html.a-still .fg-f,html.a-still .fg-tot,html.a-still .fg-pasi li,html.a-still .rm-o,html.a-still .an-scor,html.a-still .an-serie{transition:none!important;animation:none!important}
@media (prefers-reduced-motion: reduce){
  .fg-b,.fg-f,.fg-tot,.fg-pasi li,.rm-o,.an-scor,.an-serie{transition:none!important;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}