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

/* ---------- fracția etajată ---------- */
.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}
/* culorile termenilor: aceleași pe bandă și în scriere */
.fr.p0>b{color:var(--sun-ink)}
.fr.p1>b{color:var(--sky)}
.fr.p2>b{color:var(--berry)}
.fr.p3>b{color:var(--leaf-deep)}
.fr.cs>b{color:var(--leaf-deep)}
/* în butoane și pe rândurile de text, fracția rămâne compactă */
.chip .fr,.pool-item .fr,.af-rand .fr,.ocard .fr{font-size:1em}
.ans .fr{font-size:1.15em}
.task .chips .chip{min-width:3.2em;justify-content:center}
.task h3 .fr,.big .fr,.key .fr,.fact .fr,.say .fr{font-size:.8em}
.dm-op{color:var(--muted);font-weight:800;margin:0 .14em}
.dm-q{display:inline-flex;align-items:center;justify-content:center;min-width:1.6em;height:1.6em;border:3px dashed var(--leaf);border-radius:10px;color:var(--muted);font-weight:900}

/* ---------- banda: un întreg = o bandă cu părți egale ---------- */
.dm-band{display:flex;height:calc(36px * var(--fs));border:3px solid var(--ink);border-radius:6px;overflow:hidden;background:var(--card);box-sizing:border-box;width:100%}
.dm-s{flex:1 1 0;min-width:0;border:0;border-right:2px solid var(--ink);background:var(--card);padding:0;margin:0;border-radius:0;transition:background .4s}
.dm-s:last-child{border-right:0}
.dm-s.dm-w{border-right:5px solid var(--ink)}
.dm-s.p0{background:var(--sun)}
.dm-s.p1{background:var(--sky)}
.dm-s.p2{background:var(--berry)}
.dm-s.p3{background:var(--leaf-deep)}
.dm-s.pc{background:var(--leaf)}
.dm-s.pt{background:repeating-linear-gradient(135deg,var(--leaf-tint) 0 7px,var(--card) 7px 14px)}
.dm-s.px{background-image:repeating-linear-gradient(45deg,transparent 0 6px,var(--card) 6px 10px)}
/* banda tăiată: grupuri lipite (desp = depărtate, fiecare cu marginile lui) */
.dm-taie{display:flex;align-items:flex-start;width:100%}
.dm-g{display:flex;flex-direction:column;min-width:0;transition:margin .5s ease}
.dm-taie:not(.desp) .dm-g+.dm-g .dm-band{border-left-width:0;border-top-left-radius:0;border-bottom-left-radius:0}
.dm-taie:not(.desp) .dm-g:not(:last-child) .dm-band{border-top-right-radius:0;border-bottom-right-radius:0}
.dm-taie.desp .dm-g+.dm-g{margin-left:calc(10px * var(--fs))}
.dm-taie.desp .dm-g:last-child:not(:first-child) .dm-band:not(:has(.p0,.p1,.p2,.p3)){opacity:.55}
.dm-et{display:flex;justify-content:center;align-items:center;min-height:calc(42px * var(--fs));font-size:calc(19px * var(--fs));text-align:center}

/* ---------- planșe ---------- */
.plate .dm-plansa,.plate .dm-anim,.plate .dm-tab,.plate .dm-col{background:var(--card);color:var(--ink);border-radius:12px;padding:14px 16px;font-weight:800}
.dm-ec{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:2px;margin:0 0 10px;font-size:calc(28px * var(--fs));font-family:var(--f-display);min-height:1.9em}
.dm-ec-mic{font-size:calc(21px * var(--fs));margin:0 0 6px;min-height:1.7em}
.dm-ec-2{margin-top:14px}
.dm-nota{margin:10px 0 0;text-align:center;color:var(--muted);font-size:calc(15px * var(--fs));line-height:1.4}
.dm-nota-sus{margin:0 0 4px}
.dm-tag{display:inline-flex;align-items:center;background:var(--sun-tint);color:var(--ink);border-radius:999px;padding:2px 12px;font-family:var(--f-body);font-size:calc(14px * var(--fs));margin-right:8px}
/* stația 2: trei rânduri, fiecare cu eticheta și suma deasupra benzii */
.dm-rand2+.dm-rand2{margin-top:12px}
.dm-rand2-sus{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:4px}
.dm-rand2-sus .dm-ec{margin:0;justify-content:flex-end;min-height:0}
.dm-rand2 .dm-band{height:calc(28px * var(--fs))}
/* stația 4: a doua bandă */
.dm-inv{margin-top:2px}
/* stația 9: suma la stânga, banda la dreapta */
.dm-rand{display:flex;align-items:center;gap:12px}
.dm-rand+.dm-rand{margin-top:10px}
.dm-rand>.dm-ec{flex:0 0 46%;margin:0;justify-content:flex-start}
.dm-rand>.dm-taie{flex:1;min-width:0}
.dm-rand .dm-band{height:calc(30px * var(--fs))}
/* stația 6 și animația: foarfecele la locurile de tăiat, exact pe granița dintre părți */
.dm-locuri{position:relative;padding-top:calc(30px * var(--fs))}
.dm-foarfeci{position:absolute;left:0;right:0;top:0;height:calc(30px * var(--fs))}
.dm-foarfeci span{position:absolute;top:0;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;line-height:1}
.dm-foarfeci b{color:var(--berry);font-size:calc(20px * var(--fs))}
.dm-foarfeci i{font-style:normal;font-size:calc(12px * var(--fs));color:var(--muted)}
.dm-plansa .dm-foarfeci span{top:auto;bottom:0}
.dm-plansa .dm-locuri{padding-top:calc(38px * var(--fs))}
.dm-plansa .dm-foarfeci{height:calc(38px * var(--fs))}
/* stația 10: întrebările lupei */
.dm-lupa-t{margin:0 0 10px;font-size:calc(19px * var(--fs))}
.dm-lupa-r{display:flex;align-items:center;gap:10px;margin:0 0 10px;font-size:calc(18px * var(--fs));line-height:1.3}
.dm-lupa-r b{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:1.8em;height:1.8em;border-radius:50%;background:var(--leaf);color:var(--on-leaf)}

/* ---------- animația „colecția” (copertă, stația 1) ---------- */
.dm-anim .dm-ec{margin-bottom:4px}
.dm-anim-b{min-height:calc(108px * var(--fs))}
.dm-anim .dm-locuri .dm-band,.dm-anim .dm-taie .dm-band{height:calc(36px * var(--fs))}
.dm-anim .dm-taie.desp .dm-g{animation:dm-intra .45s ease-out}
.dm-anim-col{margin-top:6px;border-top:2px dashed var(--line);padding-top:8px}
.dm-anim-cap{display:block;text-align:center;color:var(--muted);font-size:calc(14px * var(--fs));margin-bottom:6px}
.dm-anim-lista{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}
.dm-col-it{display:inline-flex;align-items:center;gap:2px;background:var(--leaf-tint);border:2px solid var(--leaf);border-radius:12px;padding:2px 10px;font-size:calc(17px * var(--fs));color:var(--ink)}
.dm-col-it.ascuns{visibility:hidden}
.dm-col-it.nou{animation:dm-pop .45s ease-out}
@keyframes dm-pop{0%{transform:scale(.4) translateY(-20px);opacity:0}70%{transform:scale(1.12)}100%{transform:none;opacity:1}}
@keyframes dm-intra{0%{transform:scaleX(.85)}100%{transform:none}}

/* ---------- tabelul descompunerilor (stația 5) ---------- */
.dm-tab-cap,.dm-tab-r,.dm-tab-sag{display:grid;grid-template-columns:calc(30px * var(--fs)) 4.2em 1.2em 4.2em minmax(0,1fr);gap:6px;align-items:center;justify-items:center}
.dm-tab-cap{color:var(--muted);font-size:calc(13px * var(--fs));margin-bottom:4px}
.dm-tab-r{padding:4px 0;border-top:2px solid var(--line);transition:opacity .4s}
.dm-tab-r.ascuns{opacity:0}
.dm-tab-r.nou{animation:dm-apare .45s ease-out}
@keyframes dm-apare{0%{opacity:0}100%{opacity:1}}
.dm-tab-nr{display:inline-flex;align-items:center;justify-content:center;width:calc(26px * var(--fs));height:calc(26px * var(--fs));border-radius:50%;background:var(--sun-tint);font-size:calc(14px * var(--fs))}
.dm-tab-f{font-family:var(--f-display);font-size:calc(22px * var(--fs))}
.dm-tab-b{justify-self:stretch}
.dm-tab-b .dm-band{height:calc(24px * var(--fs));border-width:2px}
.dm-tab-b .dm-s{border-right-width:1.5px}
.dm-tab-b .dm-taie.desp .dm-g+.dm-g{margin-left:6px}
.dm-tab-sag{margin-top:4px;font-size:calc(15px * var(--fs));text-align:center;white-space:nowrap}
.dm-tab-sag .t-a{color:var(--sun-ink)} .dm-tab-sag .t-b{color:var(--sky)}

/* ---------- colecția din planșa laboratorului (stația 3) ---------- */
.dm-col-top{display:flex;justify-content:space-between;align-items:center;font-size:calc(18px * var(--fs));margin-bottom:10px}
.dm-col-nr{background:var(--sun-tint);border-radius:999px;padding:2px 12px;font-size:calc(15px * var(--fs))}
.dm-col-lista{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.dm-col .dm-col-it{min-height:calc(54px * var(--fs));justify-content:center;font-size:calc(19px * var(--fs));position:relative}
.dm-col .dm-col-it>b{position:absolute;left:8px;top:4px;font-size:calc(12px * var(--fs));color:var(--muted)}
.dm-col .dm-col-it.gol{background:transparent;border:2px dashed var(--line)}
.dm-col .dm-col-it.trei{border-color:var(--sky);background:var(--sky-tint)}
.dm-col .dm-col-it.asteapta{visibility:hidden}
.dm-col-cond{display:flex;flex-direction:column;gap:4px;margin-top:10px;font-size:calc(14px * var(--fs));color:var(--muted)}
.dm-col-cond .ok{color:var(--leaf-deep)}
/* copia care zboară spre colecție (în afara scenei, deasupra tuturor) */
.cl-zbor{position:fixed;z-index:50;margin:0;pointer-events:none;transform-origin:top left;transition:transform .6s cubic-bezier(.5,0,.3,1),opacity .6s;display:flex;align-items:center;justify-content:center;font-family:var(--f-display);font-size:calc(28px * var(--fs));color:var(--ink)}

/* ---------- laboratoare: părți comune ---------- */
.tb-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:calc(28px * var(--fs))}
.tb-made{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.tb-gata{display:inline-flex;align-items:center;gap:2px;background:var(--leaf-tint);color:var(--leaf-deep);border:2px solid var(--leaf);border-radius:999px;padding:0 10px;font-weight:800;font-size:calc(12px * var(--fs));animation:dm-pop .35s ease-out}
.tb-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)}
.tb-act .verif,.tb-act .iz-next{margin-left:auto}
.tb-act .verif:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.tb-msg{margin:4px 0 0;min-height:1.4em;text-align:center;font-weight:800;color:var(--muted);font-size:calc(15px * var(--fs))}
.tb-msg.rau{color:var(--berry)}
.tb-msg.bine{color:var(--leaf-deep)}
@keyframes shake{0%,100%{transform:none}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

/* ---------- laborator: colecționarul ---------- */
.cl-fr{display:inline-flex;align-items:center;gap:6px}
.cl-ec{display:flex;align-items:center;justify-content:center;gap:4px;margin:2px 0 8px;font-size:calc(28px * var(--fs));font-family:var(--f-display);min-height:calc(70px * var(--fs))}
.cl-sum{display:inline-flex;align-items:center}
.cl-gol{display:inline-flex;align-items:center;border:3px dashed var(--line);border-radius:12px;padding:4px 12px;color:var(--muted);font-family:var(--f-body);font-size:calc(16px * var(--fs))}
.cl-banda .dm-band{height:calc(48px * var(--fs))}
.cl-banda button.dm-s{cursor:pointer}
.cl-banda button.dm-s:hover{filter:brightness(1.08);box-shadow:inset -6px 0 0 var(--berry)}
.cl-banda .dm-et{font-size:calc(17px * var(--fs));color:var(--muted);min-height:calc(42px * var(--fs))}

/* ---------- laborator: câți termeni ---------- */
.tm-cer{display:block;font-size:calc(16px * var(--fs));color:var(--ink)}
.tm-pas{display:inline-flex;align-items:center;justify-content:center;width:calc(26px * var(--fs));height:calc(26px * var(--fs));border-radius:50%;border:2px solid var(--line);font-size:calc(13px * var(--fs));color:var(--muted)}
.tm-pas.acum{border-color:var(--sun);background:var(--sun-tint);color:var(--ink)}
.tm-pas.ok{border-color:var(--leaf);background:var(--leaf-tint);color:var(--leaf-deep)}
.tm-ec{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:4px;font-size:calc(26px * var(--fs));font-family:var(--f-display);margin-bottom:8px}
.tm-t{display:inline-flex;flex-direction:column;align-items:center;gap:4px;padding:4px 6px;border:3px solid var(--line);border-radius:14px;background:var(--card)}
.tm-t.p0{border-color:var(--sun)} .tm-t.p1{border-color:var(--sky)} .tm-t.p2{border-color:var(--berry)} .tm-t.p3{border-color:var(--leaf-deep)}
.tm-t{gap:3px;padding:3px 5px}
.tm-t .btn{min-width:calc(46px * var(--fs));min-height:calc(30px * var(--fs));padding:0 8px;font-size:calc(20px * var(--fs));line-height:1}
.tm-t .btn:disabled{opacity:.4;box-shadow:none}
.tm-benzi{display:grid;gap:6px}
.tm-benzi .dm-band{height:calc(28px * var(--fs))}
.tm-benzi.scutura{animation:shake .45s}

/* ---------- laborator: descompunerea greșită ---------- */
.iz .iz-q{margin:2px 0 6px;font-size:calc(24px * var(--fs))}
.iz-opt{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.iz .iz-opt .chip.iz-o{min-height:calc(48px * var(--fs));justify-content:center;font-size:calc(18px * var(--fs));border:3px solid var(--stripe);border-radius:14px;box-shadow:0 4px 0 var(--stripe);color:var(--ink)}
.iz .iz-opt .chip.iz-o.ales{background:var(--berry);border-color:var(--berry);color:var(--card);box-shadow:0 4px 0 var(--ink);transform:translateY(-2px)}
.iz .iz-opt .chip.iz-o.ales .fr>b{color:var(--card)}
.iz .iz-opt .chip.iz-o.fals{border-color:var(--berry);background:var(--berry-tint)}
.iz .iz-opt .chip.iz-o.fals::after{content:"✗";margin-left:6px;color:var(--berry);font-weight:900}
.iz .iz-opt .chip.iz-o.good::after{content:"✓";margin-left:6px;color:var(--leaf-deep);font-weight:900}
.iz-dov{margin-top:6px;display:grid;gap:3px}
.iz-r{display:grid;grid-template-columns:8.5em 1fr;gap:10px;align-items:center}
.iz-et{display:flex;align-items:center;justify-content:flex-end;gap:2px;font-weight:800;font-size:calc(13px * var(--fs));color:var(--ink);white-space:nowrap}
.iz-b .dm-band{height:calc(16px * var(--fs));border-width:2px}
.iz-b .dm-s{border-right-width:1.5px}
.iz-b .dm-s.dm-w{border-right-width:4px}
.iz-b .dm-taie.desp .dm-g+.dm-g{margin-left:5px}
.iz .iz-msg{flex:1 1 14em;margin:0;text-align:left;font-size:calc(14px * var(--fs));line-height:1.35;min-height:0}
.iz-act{flex-wrap:nowrap}
.iz-act .btn{flex:0 0 auto}
html.flow .iz-act{flex-wrap:wrap}

/* ---------- laborator: 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:dm-pop .4s ease-out}
.an-cer{margin:8px 0 0;text-align:center;font-weight:800;color:var(--muted);font-size:calc(15px * var(--fs))}
.an-q{display:flex;align-items:center;justify-content:center;gap:4px;flex-wrap:wrap;font-size:calc(28px * var(--fs));font-family:var(--f-display);font-weight:800;margin:8px 0 12px;color:var(--ink);text-align:center}
.an-q .gol{display:inline-flex;align-items:center;justify-content:center;min-width:2.2em;min-height:1.9em;border:3px dashed var(--leaf);border-radius:10px;color:var(--muted)}
.an-q .gol.plin{border-style:solid;color:var(--leaf-deep);animation:dm-pop .35s}
.an-var{justify-content:center}
.an-var .chip{font-size:calc(18px * var(--fs));min-width:5em;min-height:calc(56px * var(--fs));justify-content:center}
.an-msg{min-height:1.5em;margin:8px 0 0;text-align:center;font-weight:800;line-height:1.6}
.an-msg.bine{color:var(--leaf-deep)} .an-msg.rau{color:var(--berry)}
.an-final{text-align:center}
.an-final .an-q{display:block}
.an-scor{font-family:var(--f-display);font-size:calc(54px * var(--fs));color:var(--leaf-deep);animation:dm-pop .5s}

/* telefon */
html.flow .dm-rand{flex-direction:column;align-items:stretch;gap:4px}
html.flow .dm-rand>.dm-ec{flex-basis:auto;justify-content:center}
html.flow .iz-opt{grid-template-columns:minmax(0,1fr)}
html.flow .iz-r{grid-template-columns:6.5em 1fr}
html.flow .dm-tab-cap,html.flow .dm-tab-r,html.flow .dm-tab-sag{grid-template-columns:calc(26px * var(--fs)) 3.4em 1em 3.4em minmax(0,1fr);gap:4px}

/* fără animații (accesibilitate) și mișcare redusă: totul apare direct, în starea completă */
html.a-still .dm-col-it,html.a-still .dm-tab-r,html.a-still .dm-g,html.a-still .tb-gata,html.a-still .an-scor,html.a-still .an-q .gol,html.a-still .tm-benzi{animation:none!important;transition:none!important}
@media (prefers-reduced-motion: reduce){
  .dm-s,.dm-g,.dm-col-it,.dm-tab-r,.tb-gata,.an-q .gol,.an-scor,.an-serie,.tm-benzi,.cl-zbor{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}