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

/* ---------- fracția etajată și numărul mixt ---------- */
.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,.mx .fr-l{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;text-decoration:none}
.mx{display:inline-flex;align-items:center;vertical-align:middle;gap:.06em;font-weight:800;white-space:nowrap}
.mx-w{font-family:var(--f-display);font-weight:800;font-size:1.5em;line-height:1}
.mx>.fr{font-size:.78em;margin-left:.04em}
.fr.cs>b,.fr.cs>i,.mx.cs{color:var(--leaf-deep)}
.fr.mare,.mx.mare{font-size:calc(42px * var(--fs));font-family:var(--f-display)}
.mx.mare .mx-w{font-size:1.1em}
/* în butoane și pe rândurile de text, fracția rămâne compactă */
.chip .fr,.pool-item .fr,.af-rand .fr,.ocard .fr,.bin .fr{font-size:1em}
.ans .fr{font-size:1.15em}
.task h3 .fr,.big .fr,.key .fr,.fact .fr,.say .fr,.cap .fr,.hint .fr{font-size:.8em}
.task .chips .chip{min-width:3.2em;justify-content:center}

/* ---------- piese comune ---------- */
.fu-op{color:var(--muted);font-weight:800;margin:0 .2em;font-size:1.1em}
.fu-k{display:inline-flex;align-items:center;justify-content:center;min-width:1.5em;padding:0 .2em;border-radius:10px;background:var(--sun-tint);color:var(--sun-ink);font-family:var(--f-display);font-weight:800;font-size:1.2em;line-height:1.3}
/* cartonașul unei fracții unitare */
.fu-c{display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;min-width:calc(42px * var(--fs));min-height:calc(56px * var(--fs));padding:2px 4px;border:3px solid var(--sky);border-radius:10px;background:var(--sky-tint);color:var(--ink);font-size:calc(20px * var(--fs));font-weight:800;vertical-align:middle}
.fu-c.pl{border-color:var(--leaf);background:var(--leaf-tint)}
.fu-c.nou{animation:fu-pop .35s ease-out}
.fu-mic{color:var(--muted);font-size:.75em;font-weight:800}
.fu-tr{display:inline-flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:center}
.fu-nota{margin:12px 0 0;text-align:center;color:var(--muted);font-size:calc(17px * var(--fs))}
.fu-nota b{color:var(--ink)}
.fu-sum-r{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:4px;font-size:calc(24px * var(--fs));margin-top:10px}
/* acolada sub un grup de cartonașe, cu eticheta centrată exact sub grup */
.fu-acol,.fu-g{display:inline-flex;flex-direction:column;align-items:stretch}
.fu-brace{margin-top:6px;padding-top:8px;border-top:3px solid var(--berry);border-radius:12px 12px 0 0;text-align:center;color:var(--berry);font-weight:800;font-size:calc(17px * var(--fs))}

/* planșele */
.plate .fu-unit,.plate .fu-sum,.plate .fu-short,.plate .fu-tab,.plate .fu-peste,.plate .ma-anim,.plate .ax-anim{background:var(--card);color:var(--ink);border-radius:12px;padding:16px;font-weight:800}

/* stația 1: fracțiile unitare, fiecare cu banda ei */
.fu-unit{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.fu-u{display:flex;flex-direction:column;align-items:center;gap:8px;padding:10px;border:2px solid var(--line);border-radius:12px}
.fu-uf{min-height:calc(92px * var(--fs));display:flex;align-items:center}
.fu-u small{color:var(--muted);font-size:calc(14px * var(--fs))}
.fu-bar{display:flex;width:100%;height:calc(26px * var(--fs));border:3px solid var(--ink);border-radius:6px;overflow:hidden;box-sizing:border-box}
.fu-bar i{flex:1 1 0;border-right:2px solid var(--ink);background:var(--card)}
.fu-bar i:last-child{border-right:0}
.fu-bar i.pl{background:var(--sun)}

/* stația 3: suma lungă cu termenii numerotați */
.fu-sum .fu-tr{flex-wrap:nowrap}
.fu-tc{display:inline-flex;flex-direction:column;align-items:center;gap:4px}
.fu-tc small{min-height:1.6em;display:flex;align-items:center;justify-content:center;min-width:1.6em;border-radius:999px;background:var(--sun);color:var(--on-sun);font-size:calc(14px * var(--fs))}
.fu-tc.fu-plus>span{min-height:calc(56px * var(--fs));display:flex;align-items:center;color:var(--muted);font-size:calc(24px * var(--fs))}
.fu-tc.fu-plus small{visibility:hidden}

/* stația 4: adunarea repetată devine înmulțire */
.fu-short{text-align:center}
.fu-short .fu-acol{display:inline-flex}

/* stația 6: tabelul fracție · bucăți · forma scurtă */
.fu-tab{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;text-align:center;font-size:calc(21px * var(--fs))}
.fu-tab>span{display:flex;align-items:center;justify-content:center;gap:4px;min-height:calc(64px * var(--fs));border-radius:10px;background:var(--sky-tint)}
.fu-tab>span.h{min-height:0;padding:6px 4px;background:transparent;color:var(--muted);font-size:calc(15px * var(--fs))}
.fu-tab b{color:var(--sun-ink);background:var(--sun-tint);border-radius:8px;padding:0 6px}

/* stațiile 9 și 10: grupuri de cartonașe */
.fu-gr{display:flex;justify-content:center;align-items:flex-start;gap:18px;flex-wrap:wrap}

/* ---------- mașina de cartonașe (ceasul din js/aplicatie.js) ---------- */
.ma-anim{text-align:center}
.ma-top{display:flex;align-items:center;justify-content:center;gap:10px;min-height:calc(96px * var(--fs))}
.ma-arr{color:var(--muted);font-size:calc(26px * var(--fs))}
.ma-box{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;width:calc(96px * var(--fs));height:calc(78px * var(--fs));border:3px solid var(--ink);border-radius:16px;background:var(--sun-tint);box-shadow:0 5px 0 var(--line)}
.ma-box small{font-size:calc(13px * var(--fs));color:var(--sun-ink)}
.ma-gear{font-size:calc(32px * var(--fs));line-height:1;display:inline-block}
.ma-box.lucreaza .ma-gear{animation:fu-roata 1s linear infinite}
/* rândul cu cartonașe: locul e rezervat pentru cel mai lung exemplu, deci nimic nu sare */
.ma-out{display:flex;justify-content:center;align-items:flex-end;gap:6px;min-height:calc(84px * var(--fs));margin-top:6px;flex-wrap:wrap}
html.flow .ma-out{min-height:calc(172px * var(--fs));align-content:flex-start}
.ma-cc{display:inline-flex;flex-direction:column;align-items:center;gap:3px;opacity:0;transform:translateY(-14px);transition:opacity .3s,transform .3s}
.ma-cc.on{opacity:1;transform:none}
.ma-cc em{font-style:normal;min-width:1.5em;border-radius:999px;background:var(--sun);color:var(--on-sun);font-size:calc(13px * var(--fs));font-weight:900}
.ma-cc .fu-c{min-width:calc(38px * var(--fs));min-height:calc(52px * var(--fs));font-size:calc(18px * var(--fs))}
.ma-say,.ax-say{margin:8px 0 0;min-height:2.6em;display:flex;align-items:center;justify-content:center;gap:6px;color:var(--muted);font-size:calc(18px * var(--fs))}
.ma-say b,.ax-say b{color:var(--ink);font-size:1.2em}
.ma-eq{margin:4px 0 0;min-height:2.6em;display:flex;align-items:center;justify-content:center;gap:6px;font-size:calc(24px * var(--fs));color:var(--leaf-deep);opacity:0;transition:opacity .35s}
.ma-eq.on{opacity:1}
/* fără animații: starea completă (toate cartonașele, egalitatea) */
.ma-anim.static .ma-cc,.ax-anim.static .ma-eq{transition:none}

/* ---------- axa numerică ---------- */
.ax-svg{display:block;width:100%;height:auto;overflow:visible}
.ax-l,.ax-t{stroke:var(--ink);stroke-width:3;stroke-linecap:round}
.ax-t{stroke-width:2}
.ax-t.ax-T{stroke-width:3.5}
.ax-int{fill:var(--ink);font-weight:900;font-size:22px;text-anchor:middle;font-family:var(--f-display)}
.ax-f text{fill:var(--muted);font-weight:800;font-size:14px;text-anchor:middle}
.ax-f line{stroke:var(--muted);stroke-width:1.6}
.ax-f.ax-ti text,.ax-int.ax-ti{fill:var(--berry)}
.ax-f.ax-ti line{stroke:var(--berry)}
.ax-steag{font-size:18px;text-anchor:middle}
.ax-s{fill:none;stroke:var(--sky);stroke-width:3.5;stroke-linecap:round}
.ax-s.nou{stroke-dasharray:200;stroke-dashoffset:200;animation:fu-arc .45s ease-out forwards}
.ax-nr{fill:var(--sky);font-weight:900;font-size:14px;text-anchor:middle}
.ax-nr.nou{animation:fu-fade .45s ease-out}
.ax-p{fill:var(--leaf);stroke:var(--card);stroke-width:3}
.ax-p0{fill:var(--muted)}
.ax-anim .ma-eq{font-size:calc(22px * var(--fs))}

/* ---------- laboratoare: părți comune ---------- */
.sc-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))}
.sc-made{display:flex;gap:6px;flex-wrap:wrap;align-items:center;min-height:30px}
.sc-gata{display:inline-flex;align-items:center;gap:4px;background:var(--leaf-tint);color:var(--leaf-deep);border:2px solid var(--leaf);border-radius:999px;padding:2px 10px;font-weight:800;font-size:calc(14px * var(--fs));animation:fu-pop .35s ease-out}
.sc-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)}
.sc-act .verif,.sa-act .verif{margin-left:auto}
.sc-act .verif:disabled,.sa-act .verif:disabled,.sa-act .btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
/* plăcuțe mari, la fel, cu starea „ales” clară */
.sc-c{display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;min-width:calc(62px * var(--fs));min-height:calc(62px * var(--fs));padding:4px 12px;font-size:calc(22px * var(--fs));font-weight:800;color:var(--ink);background:var(--card);border:3px solid var(--stripe);border-radius:14px;box-shadow:0 5px 0 var(--stripe);cursor:pointer;font-family:inherit}
.sc-c:hover{transform:translateY(-2px)}
.sc-c.ales{background:var(--berry);border-color:var(--berry);color:var(--card);box-shadow:0 5px 0 var(--ink);transform:translateY(-3px)}
.sc-c:disabled{opacity:.5;transform:none;cursor:default}

/* ---------- laborator 1: atelierul de scriere ---------- */
.sc-eq{display:flex;align-items:center;gap:6px;margin:4px 0 8px;min-height:calc(76px * var(--fs))}
.sc-tinta{flex:0 0 auto}
.sc-suma{flex:1;display:flex;align-items:center;flex-wrap:wrap;gap:2px 0;min-height:calc(64px * var(--fs));padding:4px 8px;border:3px dashed var(--line);border-radius:14px}
.sc-suma .fu-c{min-width:calc(36px * var(--fs));min-height:calc(50px * var(--fs));font-size:calc(17px * var(--fs))}
.sc-suma .fu-op{margin:0 .1em}
.sc-gol{color:var(--muted);font-size:calc(15px * var(--fs))}
.sc-rand{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:8px}
.sc-et{flex:0 0 auto;white-space:nowrap;font-weight:800;color:var(--muted);font-size:calc(15px * var(--fs))}
.sc-carti{display:flex;gap:10px;flex-wrap:wrap}
.sc-scurt{font-size:calc(22px * var(--fs))}
.sc-pm{display:inline-flex;align-items:center;justify-content:center;width:calc(46px * var(--fs));height:calc(46px * var(--fs));border:3px solid var(--stripe);border-radius:12px;background:var(--card);color:var(--ink);font-size:calc(24px * var(--fs));font-weight:900;box-shadow:0 4px 0 var(--stripe);cursor:pointer;font-family:inherit}
.sc-pm:disabled{opacity:.5;cursor:default}
.sc-k{display:inline-flex;align-items:center;justify-content:center;min-width:2em;height:calc(52px * var(--fs));border-radius:12px;background:var(--sun-tint);color:var(--sun-ink);font-family:var(--f-display);font-weight:800;font-size:calc(28px * var(--fs))}
.sc-unit{display:inline-flex;align-items:center}
.sc-q{display:inline-flex;align-items:center;justify-content:center;min-width:calc(42px * var(--fs));height:calc(56px * var(--fs));border:3px dashed var(--sky);border-radius:10px;color:var(--sky);font-weight:900}

/* ---------- laborator 2: salturi pe axă ---------- */
.sa-tinta{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-size:calc(20px * var(--fs));background:var(--berry-tint);border:2px solid var(--berry);border-radius:12px;padding:2px 12px}
.sa-axa{margin:4px 0 0}
.sa-live{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:4px;min-height:calc(58px * var(--fs));margin:4px 0 0;font-weight:800;font-size:calc(19px * var(--fs));color:var(--ink);text-align:center}
.sa-live b{color:var(--leaf-deep)}
.sa-act{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:6px;padding-top:8px;border-top:2px dashed var(--line)}
.sa-sari{min-height:calc(52px * var(--fs));font-size:calc(18px * var(--fs))}
.sa .sc-made{margin-top:6px}

/* ---------- laborator 3: numărul mixt desfăcut ---------- */
.mi-sus{display:flex;align-items:center;gap:16px;margin:6px 0}
.mi-nr{flex:0 0 auto}
.mi-benzi{flex:1;display:flex;flex-direction:column;gap:6px;min-width:0}
.mi-b{display:flex;height:calc(42px * var(--fs));border:3px solid var(--ink);border-radius:8px;overflow:hidden;box-sizing:border-box}
.mi-s{position:relative;flex:1 1 0;min-width:0;display:flex;align-items:center;justify-content:center;border-right:2px solid var(--ink);background:var(--card);font-size:calc(13px * var(--fs))}
.mi-s:last-child{border-right:0}
.mi-s.pl{background:var(--sky-tint)}
.mi-b.intreg .mi-s.pl{background:var(--leaf-tint)}
.mi-s em{position:absolute;top:1px;right:3px;font-style:normal;font-weight:900;font-size:calc(11px * var(--fs));color:var(--berry);animation:fu-fade .3s ease-out both}
.mi-q{margin:8px 0 6px;font-weight:800;font-size:calc(18px * var(--fs));color:var(--ink);display:flex;align-items:center;gap:6px;min-height:1.6em}
.mi-opt{display:flex;gap:12px;flex-wrap:wrap}
.mi-lant{display:flex;align-items:center;flex-wrap:wrap;gap:4px;min-height:calc(46px * var(--fs));margin:8px 0 0;font-weight:800;font-size:calc(18px * var(--fs));color:var(--ink)}
.mi-lant b{color:var(--leaf-deep)}

/* ---------- laboratoarele fără planșă folosesc toată lățimea scenei ---------- */
.lesson:has(> .work:empty){grid-template-columns:minmax(0,1fr)}
.lesson>.work:empty{display:none}
.task .sc-c{border:3px solid var(--stripe);box-shadow:0 5px 0 var(--stripe)}
.task .sc-c.ales{border-color:var(--berry);box-shadow:0 5px 0 var(--ink)}
.task .sc-pm{border:3px solid var(--stripe);box-shadow:0 4px 0 var(--stripe)}
.sc-jos{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:8px 24px;align-items:center}
.sc-jos .sc-rand{margin-top:0}
.sc-pmg{display:inline-flex;align-items:center;gap:8px;flex-wrap:nowrap}
.sc-top .sc-made{flex:1;justify-content:center;min-height:0}
.sc-nr{color:var(--muted);font-weight:800;font-size:calc(14px * var(--fs))}
.sa-axa{max-width:600px;margin:0 auto}
.mi-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:12px 24px;align-items:center}
html.flow .sc-jos,html.flow .mi-grid{grid-template-columns:minmax(0,1fr)}

/* ---------- 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-q{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:6px;font-size:calc(26px * var(--fs));font-weight:800;margin:12px 0;color:var(--ink);text-align:center;min-height:calc(70px * var(--fs))}
.an-q .gol{display:inline-flex;align-items:center;justify-content:center;min-width:2.4em;min-height:1.6em;border-bottom:3px dashed var(--leaf);color:var(--muted)}
.an-q .gol.plin{border-bottom-style:solid;color:var(--leaf-deep);animation:fu-pop .35s}
.an-var{justify-content:center}
.an-var .chip{font-size:calc(19px * var(--fs));min-width:4.5em;min-height:calc(56px * var(--fs));display:inline-flex;align-items:center;justify-content:center}
.an-msg{min-height:2.8em;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:fu-pop .5s}

@keyframes fu-pop{0%{transform:scale(.6)}70%{transform:scale(1.15)}100%{transform:none}}
@keyframes fu-roata{to{transform:rotate(360deg)}}
@keyframes fu-arc{to{stroke-dashoffset:0}}
@keyframes fu-fade{from{opacity:0}to{opacity:1}}

/* mișcare redusă (sistem): animațiile decorative se opresc; mașina și axa sunt oprite din js/aplicatie.js */
@media (prefers-reduced-motion: reduce){
  .fu-c,.sc-gata,.ax-s,.ax-nr,.mi-s em,.an-q .gol,.an-scor,.an-serie,.ma-gear{animation:none!important}
  .ax-s{stroke-dashoffset:0!important}
}
:root.a-still .ax-s{stroke-dashoffset:0!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}