/* aplicatie.css — stiluri proprii lecției „Descompune fracții” (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.ca>b,.t-a{color:var(--sun-ink)}
.fr.cb>b,.t-b{color:var(--sky)}
.fr.cs>b,.mx.cs .mx-w,.t-s{color:var(--leaf-deep)}
.fr.mare{font-size:calc(46px * var(--fs));font-family:var(--f-display)}
/* 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:1.2em}
.task .chips .chip{min-width:3.2em;justify-content:center}
.task h3 .fr,.big .fr,.key .fr,.fact .fr,.say .fr{font-size:.8em}

/* ---------- benzile: un întreg = o bandă cu părți egale ---------- */
.df-band{display:flex;height:calc(40px * var(--fs));border:3px solid var(--ink);border-radius:6px;overflow:hidden;background:var(--card);box-sizing:border-box}
.df-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 .45s,opacity .45s}
.df-s:last-child{border-right:0}
.df-s.df-a{background:var(--sun)}
.df-s.df-b{background:var(--sky)}
.df-s.df-c{background:var(--leaf)}
.df-s.df-x{background:var(--berry)}
.df-s.df-t{background:repeating-linear-gradient(135deg,var(--sky-tint) 0 7px,var(--card) 7px 14px)}
.df-op{color:var(--muted);font-weight:800;margin:0 .15em}
.df-q{display:inline-flex;align-items:center;justify-content:center;min-width:1.6em;height:1.6em;border:3px dashed var(--sky);border-radius:10px;color:var(--sky);font-weight:900}

/* planșele */
.plate .df-plansa,.plate .df-anim,.plate .df-regula,.plate .df-sens{background:var(--card);color:var(--ink);border-radius:12px;padding:16px;font-weight:800}
.df-ec{display:flex;align-items:center;justify-content:center;gap:4px;margin:0 0 14px;font-size:calc(30px * var(--fs));font-family:var(--f-display);min-height:1.9em}
.df-nota{margin:12px 0 0;text-align:center;color:var(--muted);font-size:calc(16px * var(--fs));min-height:1.9em;line-height:1.9}
.df-unit-et{display:flex;margin-top:4px}
.df-unit-et span{flex:1 1 0;display:flex;justify-content:center;font-size:calc(15px * var(--fs));color:var(--leaf-deep)}
.df-rand{display:flex;align-items:center;gap:12px;margin-top:8px}
.df-rand .df-band{flex:1}
.df-rand-et{flex:0 0 8.5em;font-size:calc(15px * var(--fs));color:var(--muted);display:flex;align-items:center;gap:4px}

/* banda care se desparte: bucăți a | b | rest, eticheta exact sub bucata ei */
.df-desp{display:flex;align-items:flex-start}
.df-g{display:flex;flex-direction:column;min-width:0;transition:margin .55s ease}
.df-g .df-band{width:100%}
.df-g+.df-g .df-band{border-left-width:0;border-top-left-radius:0;border-bottom-left-radius:0}
.df-g:not(:last-child) .df-band{border-top-right-radius:0;border-bottom-right-radius:0}
.df-et{display:flex;justify-content:center;align-items:center;min-height:calc(46px * var(--fs));font-size:calc(22px * var(--fs));text-align:center;transition:opacity .4s}
.df-gr .df-et{visibility:hidden}
/* despărțit: bucățile se îndepărtează și fiecare își recapătă marginile */
.df-anim.f2 .df-g+.df-g,.df-static .df-g+.df-g,.df-desp.rupt .df-g+.df-g{margin-left:calc(18px * var(--fs))}
.df-anim.f2 .df-g .df-band,.df-static .df-g .df-band,.df-desp.rupt .df-g .df-band{border-width:3px;border-radius:6px}
.df-anim.f2 .df-gr,.df-static .df-gr,.df-desp.rupt .df-gr{opacity:.5}
/* animația pe pași (ceasul din js/aplicatie.js) */
.df-anim.f0 .df-s.df-a,.df-anim.f0 .df-s.df-b{background:var(--leaf)}
.df-anim .df-et,.df-anim .df-rest{opacity:0}
.df-anim.f2 .df-et,.df-anim.f2 .df-rest{opacity:1}
.df-rest{display:inline-flex;align-items:center;gap:4px;transition:opacity .45s}
.df-anim .df-nota b{font-weight:900}

/* stația 3: numărătorii se despart, numitorul rămâne */
.df-ec-mare{font-size:calc(40px * var(--fs))}
.df-rg{display:grid;grid-template-columns:auto 1fr;gap:8px 12px;align-items:center;font-size:calc(22px * var(--fs))}
.df-rg-k{background:var(--sun-tint);border-radius:999px;padding:2px 12px;color:var(--ink);font-size:calc(15px * var(--fs));text-align:center}
.df-rg-v b{font-weight:900}

/* stația 5: în ambele sensuri */
.df-sens p{display:flex;align-items:center;justify-content:center;gap:6px;margin:6px 0;font-size:calc(30px * var(--fs));font-family:var(--f-display)}
.df-sens-e{flex:0 0 6.5em;font-family:var(--f-body);font-size:calc(15px * var(--fs));color:var(--muted);text-align:right;margin-right:8px}
.df-sens .df-sag{font-size:calc(26px * var(--fs));color:var(--leaf-deep);margin:0}

/* ---------- 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(30px * 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: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{margin-left:auto}
.tb-act .verif:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
@keyframes pop{0%{transform:scale(.6)}70%{transform:scale(1.15)}100%{transform:none}}
@keyframes shake{0%,100%{transform:none}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

/* ---------- laborator: taie banda ---------- */
.tb-ec{display:flex;align-items:center;justify-content:center;gap:6px;margin:4px 0 10px;font-size:calc(30px * var(--fs));font-family:var(--f-display)}
.tb-fr{display:inline-flex;flex-direction:column;align-items:center;gap:3px}
.tb-fr i{display:block;width:100%;border-top:4px solid var(--ink)}
.tb-in{width:calc(54px * var(--fs));height:calc(38px * var(--fs));box-sizing:border-box;text-align:center;font:inherit;font-size:calc(24px * var(--fs));font-weight:800;color:var(--ink);background:var(--card);border:3px solid var(--line);border-radius:10px;padding:0}
.tb-fr.ca .tb-in{border-color:var(--sun)}
.tb-fr.cb .tb-in{border-color:var(--sky)}
.tb-in:focus{outline:3px solid var(--leaf);outline-offset:1px}
.tb-in:disabled{opacity:.7}
.tb-banda .df-band{height:calc(46px * var(--fs))}
.tb-banda button.df-s{cursor:pointer}
.tb-banda button.df-s:hover{filter:brightness(1.08);box-shadow:inset -5px 0 0 var(--berry)}
.tb-banda .df-et{font-size:calc(14px * var(--fs));font-weight:800;color:var(--muted);min-height:calc(26px * var(--fs))}
.tb-banda .df-ga .df-et{color:var(--sun-ink)}
.tb-banda .taiat .df-gb .df-et{color:var(--sky)}
.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)}

/* ---------- laborator: completează banda ---------- */
.lp-ec{display:flex;align-items:center;justify-content:center;gap:6px;margin:2px 0 6px;font-size:calc(30px * var(--fs));font-family:var(--f-display)}
.lp-b{display:inline-block;min-width:1em;text-align:center}
.lp-benzi .df-band{height:calc(36px * var(--fs))}
.lp-benzi.scutura{animation:shake .45s}
.lp-ctl{display:flex;align-items:center;gap:12px;margin-top:10px;flex-wrap:wrap}
.lp-ctl .btn{min-width:calc(52px * var(--fs));font-size:calc(24px * var(--fs));padding:4px 12px}
.lp-ctl .btn:disabled{opacity:.45;box-shadow:none}
.lp-val{min-width:1.6em;text-align:center;font-family:var(--f-display);font-size:calc(28px * var(--fs));font-weight:800;color:var(--sky)}
.lp-live{flex:1 1 auto;display:flex;align-items:center;justify-content:flex-end;gap:4px;font-weight:800;color:var(--ink);font-size:calc(18px * var(--fs))}

/* telefon: eticheta întregului ocupă mai puțin loc, banda rămâne lată */
html.flow .df-rand{gap:8px}
html.flow .df-rand-et{flex-basis:5.2em;font-size:calc(13px * var(--fs))}
html.flow .lp-live{justify-content:flex-start}

/* ---------- laborator: detectorul ---------- */
.dc .dc-q{font-size:calc(30px * var(--fs));font-family:var(--f-display);margin:8px 0}
.dc-rand{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.dc-rand .chip{min-width:7em;min-height:calc(46px * var(--fs));justify-content:center;font-size:calc(17px * var(--fs));font-weight:800}
.dc-rand .dc-next{margin-left:auto}
.dc-dov{margin-top:10px;display:grid;gap:6px}
.dc-r{display:grid;grid-template-columns:7.5em 1fr;gap:10px;align-items:center}
.dc-et{display:flex;align-items:center;justify-content:flex-end;gap:2px;font-weight:800;font-size:calc(14px * var(--fs));color:var(--ink);white-space:nowrap}
.dc-b{display:grid;gap:4px}
.dc-b .df-band{height:calc(22px * var(--fs));border-width:2px}
.dc-b .df-s{border-right-width:1.5px}
.dc .dc-msg{font-size:calc(15px * var(--fs))}

/* ---------- 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{transition:transform .2s}
.an-serie.aprinsa{color:var(--berry);animation: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:6px;flex-wrap:wrap;font-size:calc(30px * 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:pop .35s}
.an-var{justify-content:center}
.an-var .chip{font-size:calc(19px * 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:1.7}
.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:pop .5s}

/* mișcare redusă (sistem): animațiile se opresc; banda animată este oprită din js/aplicatie.js pe starea completă */
@media (prefers-reduced-motion: reduce){
  .df-s,.df-g,.df-et,.df-rest,.tb-gata,.an-q .gol,.an-scor,.an-serie,.lp-benzi{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}