/* aplicatie.css — stiluri proprii lecției „Descompune în fracții unitare cu modele” (doar variabile de culoare). */

/* ---------- fracții etajate (numărător 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(40px * var(--fs));font-family:var(--f-display)}
.fr.cs{color:var(--leaf-deep)}
.chip .fr,.pool-item .fr,.af-rand .fr,.ocard .fr{font-size:1em}
.ans .fr{font-size:1.15em}

/* ---------- modelele (SVG) ---------- */
.fu-m{display:block;width:100%;height:auto;overflow:visible}
.fu-p{fill:var(--card);stroke:var(--ink);stroke-width:2.2;stroke-linejoin:round;transition:transform .45s ease,fill .25s}
.fu-p.on{fill:var(--sun)}
.fu-salt{fill:none;stroke:var(--berry);stroke-width:3.6;stroke-linecap:round}
.fu-salt.on{fill:none}
.fu-ax{stroke:var(--ink);stroke-width:3;stroke-linecap:round}
.fu-tick{stroke:var(--ink);stroke-width:2}
.fu-tick.mare{stroke-width:3}
.fu-ax-n{fill:var(--ink);font-weight:800;font-size:17px;text-anchor:middle;font-family:var(--f-display)}
.fu-sfr text{fill:var(--ink);font-weight:800;font-size:12px;text-anchor:middle}
.fu-sfr line{stroke:var(--ink);stroke-width:1.4}
.fu-pct{fill:var(--berry);stroke:var(--card);stroke-width:2}
.fu-m.bun .fu-p.on{fill:var(--leaf);stroke:var(--leaf-deep)}
.fu-m.bun .fu-salt.on{stroke:var(--leaf-deep)}

/* termenii sumei: plăcuțe mici, la fel de înalte, pe un singur rând care se rupe frumos */
.fu-ec{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:4px 3px;font-weight:800;color:var(--ink);font-size:calc(19px * var(--fs));line-height:1}
.fu-t{display:inline-flex;align-items:center;justify-content:center;min-height:2.3em;padding:0 .2em;border-radius:9px;border:2px solid var(--line);background:var(--card);transition:background .25s,transform .25s}
.fu-t.on{background:var(--sun-tint);border-color:var(--sun-edge)}
.fu-t.lit{background:var(--berry);border-color:var(--berry);color:var(--card);transform:translateY(-3px)}
.fu-plus,.fu-eq{color:var(--muted);padding:0 2px}
.fu-rez{display:inline-flex;align-items:center;justify-content:center;min-width:1.8em;min-height:2.3em;border:2px dashed var(--leaf);border-radius:9px;color:var(--muted)}
.fu-pop{animation:fu-pop .4s ease-out}

/* ---------- planșe ---------- */
.plate .fu-grila,.plate .fu-plansa,.plate .fu-tab,.plate .fu-sync,.plate .fu-anim,.plate .fu-q{background:var(--card);color:var(--ink);border-radius:12px;padding:14px;font-weight:800}
.fu-grila{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 16px;align-items:end}
.fu-grila.fu-g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.fu-grila>.fu-ec{grid-column:1/-1;margin-top:4px}
.fu-fig{margin:0;display:flex;flex-direction:column;align-items:center;gap:6px}
.fu-fig .fu-m{max-height:92px;width:auto;max-width:100%}
.fu-fig .fu-banda,.fu-fig .fu-axa{width:100%}
.fu-fig figcaption{font-size:calc(15px * var(--fs));color:var(--ink);display:flex;align-items:center;gap:4px;min-height:2.3em}
.fu-sync .fu-grila{margin-bottom:12px}
.fu-sync .fu-p.lit{fill:var(--berry)}
.fu-sync .fu-salt.lit{fill:none;stroke:var(--sky);stroke-width:5.5}
.fu-plansa{display:flex;flex-direction:column;align-items:center;gap:12px}
.fu-plansa .fu-m{max-height:130px;width:auto;max-width:100%}
.fu-plansa .fu-banda,.fu-plansa .fu-lat{width:100%}
.fu-plansa .fu-mic{max-height:110px}
.fu-nota{margin:0;color:var(--muted);font-size:calc(16px * var(--fs));text-align:center;display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:center}
.fu-tab{display:grid;gap:10px}
.fu-tr{display:grid;grid-template-columns:4.2em minmax(0,1fr) 6.5em;align-items:center;gap:12px;background:var(--sun-tint);border-radius:12px;padding:8px 12px}
.fu-tr .fu-tm .fu-m{max-height:64px;width:auto;max-width:100%;margin:0 auto}
.fu-tr .fu-tm .fu-banda{width:100%}
.fu-tn{font-size:calc(18px * var(--fs));text-align:right}
.fu-tn b{color:var(--berry);font-size:1.3em}
.fu-q{display:flex;justify-content:center}
.fu-q .fu-m{max-height:150px;width:auto;max-width:100%}
.fu-q .fu-banda,.fu-q .fu-axa{width:100%}
.fu-cio .fu-p.on{fill:var(--sun)}

/* ---------- animația „partea se desprinde” (un singur ceas în js/aplicatie.js) ---------- */
.fu-anim{position:relative;display:flex;flex-direction:column;align-items:center;gap:12px;min-height:270px}
.fa-model{width:100%;display:flex;justify-content:center;min-height:132px;align-items:center}
.fa-model .fu-m{max-height:130px;width:auto;max-width:100%}
.fa-model .fu-banda-l,.fa-model .fu-axa-l{width:100%;max-height:96px}
.fu-p.out{transform:translate(var(--dx),var(--dy));stroke:var(--berry);stroke-width:3}
.fu-salt.out{stroke:var(--sky)}
.fa-ec{min-height:3.2em}
.fa-slot{display:inline-flex;align-items:center;gap:3px;visibility:hidden}
.fa-slot.vis{visibility:visible}
.fa-slot.nou .fu-t{animation:fu-pop .35s ease-out}
.fa-nota{margin:0;color:var(--muted);font-size:calc(17px * var(--fs));display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:center;opacity:0;transition:opacity .4s}
.fa-nota b{color:var(--berry);font-size:1.2em}
.fu-anim.nota .fa-nota,.fu-anim.static .fa-nota{opacity:1}
.fa-zbor{position:absolute;z-index:3;pointer-events:none;display:inline-flex;align-items:center;justify-content:center;min-height:2.3em;padding:0 .2em;
  background:var(--sun);color:var(--ink);border:2px solid var(--berry);border-radius:9px;font-weight:800;font-size:calc(19px * var(--fs));box-shadow:var(--shadow);transform:translate(-50%,-50%)}

/* ---------- laboratoarele: părți comune ---------- */
.fu-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));min-height:30px}
.fu-facute{display:flex;gap:6px;flex-wrap:wrap}
.fu-ok{display:inline-flex;align-items:center;gap:3px;background:var(--leaf-tint);color:var(--leaf-deep);border:2px solid var(--leaf);border-radius:999px;padding:0 10px;font-size:calc(13px * var(--fs));animation:fu-pop .35s ease-out}
.fu-ok .fr{font-size:.9em}
.fu-act{display:flex;gap:12px;justify-content:flex-start;align-items:center;flex-wrap:wrap;margin-top:8px;padding-top:8px;border-top:2px dashed var(--line)}
.fu-act .verif{margin-left:auto}
.fu-act .btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.fu-nr{color:var(--muted);font-weight:800}
.fu-nr b{color:var(--ink);font-size:1.15em}
.fu-scutura{animation:fu-shake .45s}
@keyframes fu-pop{0%{transform:scale(.6)}70%{transform:scale(1.15)}100%{transform:none}}
@keyframes fu-shake{0%,100%{transform:none}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

/* laborator 1: colorează după egalitate */
.cm-ec{margin:4px 0 10px}
.cm-rand{display:flex;align-items:center;gap:14px}
.cm-model{flex:1;display:flex;justify-content:center;min-width:0}
.cm-model .fu-m{max-height:100px;width:auto;max-width:100%}
.cm-model .fu-banda{width:100%;max-height:none}
.cm-rand .fu-nr{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;font-size:calc(13px * var(--fs))}
.cm-rand .fu-nr b{font-size:calc(30px * var(--fs));font-family:var(--f-display);line-height:1.1}
.fu-clic .fu-p{cursor:pointer;outline:none}
.fu-clic .fu-p:hover,.fu-clic .fu-p:focus-visible{stroke:var(--sky);stroke-width:4}

/* laborator 2: construiește egalitatea */
.cs-rand{display:flex;align-items:center;gap:14px;margin:4px 0 8px}
.cs-model{flex:0 0 38%;display:flex;justify-content:center}
.cs-model .fu-m{max-height:104px;width:auto;max-width:100%}
.cs-model .fu-banda-l,.cs-model .fu-axa-l{width:100%}
.cs-ec{flex:1;justify-content:flex-start;min-height:2.6em}
.cs-gol{color:var(--muted);font-size:calc(15px * var(--fs));border:2px dashed var(--line);border-radius:9px;padding:6px 10px}
.cs-placi{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.cs-et{font-weight:800;color:var(--muted)}
.cs-tiles{display:flex;gap:10px;flex-wrap:wrap}
.cs .cs-tiles .chip.cs-t{min-width:calc(76px * var(--fs));min-height:calc(56px * var(--fs));padding:2px 14px;font-size:calc(19px * var(--fs));font-weight:800;color:var(--ink);border:3px solid var(--stripe);border-radius:14px;box-shadow:0 5px 0 var(--stripe);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:4px}
.cs .cs-tiles .chip.cs-t:hover{transform:translateY(-2px)}
.cs .cs-tiles .chip.cs-t:active{transform:translateY(2px);box-shadow:0 2px 0 var(--stripe)}
.cs .cs-tiles .chip.cs-t:disabled{opacity:.5;transform:none}

/* laborator 3: potrivește modelele */
.pt-ec{margin:2px 0 8px}
.pt-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.pt-c{display:flex;align-items:center;justify-content:center;height:calc(64px * var(--fs));padding:5px 8px;border:3px solid var(--line);border-radius:14px;background:var(--card);box-shadow:0 4px 0 var(--line);cursor:pointer;transition:transform .15s,border-color .15s,background .15s}
.pt-c .fu-m{width:100%;height:100%;pointer-events:none}
.pt-c:hover{border-color:var(--sky)}
.pt-c.ales{border-color:var(--berry);background:var(--berry-tint);box-shadow:0 4px 0 var(--berry);transform:translateY(-3px)}
.pt-c.bun{border-color:var(--leaf);background:var(--leaf-tint);box-shadow:0 4px 0 var(--leaf)}
.pt-c:disabled{cursor:default}

/* ---------- laborator 4: 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:fu-pop .4s ease-out}
.an-rand{display:flex;align-items:center;justify-content:center;gap:16px;margin:10px 0;flex-wrap:wrap}
.an-viz{display:flex;justify-content:center;max-width:58%}
.an-viz .fu-m{max-height:92px;width:auto;max-width:100%}
.an-viz .fu-banda,.an-viz .fu-axa{width:260px}
.an-q{font-size:calc(21px * var(--fs));font-weight:800;margin:0;color:var(--ink);text-align:center;display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:center}
.an-ec{font-size:calc(19px * var(--fs))}
.an-ec .fu-t{background:var(--sun-tint);border-color:var(--sun-edge)}
.an-var{justify-content:center}
.an-var .chip{font-size:calc(17px * var(--fs));min-width:5em;display:inline-flex;align-items:center;justify-content:center}
.an-suma{display:inline-flex;align-items:center;flex-wrap:wrap;gap:2px}
.an-suma .fu-t{min-height:2.1em;border-width:0;background:none;padding:0}
.an-modele{gap:10px}
.an-modele .chip{width:calc(118px * var(--fs));min-width:0;height:calc(66px * var(--fs));padding:6px}
.an-modele .chip .fu-m{width:100%;height:100%;pointer-events:none}
.an-msg{min-height:1.5em;margin:8px 0 0;text-align:center;font-weight:800;display:flex;align-items:center;justify-content:center;gap:4px;flex-wrap:wrap}
.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:fu-pop .5s}

/* telefon: grilele trec pe mai puține coloane */
html.flow .pt-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
html.flow .fu-grila.fu-g3{grid-template-columns:repeat(2,minmax(0,1fr))}
html.flow .cs-rand{flex-direction:column;align-items:stretch}
html.flow .cs-model{flex-basis:auto}
html.flow .an-viz{max-width:100%}

/* mișcare redusă (sistem) și „fără animații”: nimic nu se mișcă; animațiile cu ceas se opresc din js/aplicatie.js pe starea completă */
@media (prefers-reduced-motion: reduce){
  .fu-pop,.fu-ok,.fa-slot.nou .fu-t,.an-scor,.an-serie,.fu-scutura{animation:none!important}
  .fu-p,.fu-t,.fa-nota{transition:none!important}
  .fu-p.out{transform:none}
}
html.a-still .fu-p.out{transform:none}

/* 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}