/* aplicatie.css — stiluri proprii lecției „Probleme cu tipare numerice” (doar variabile de culoare).
   Prefixe: tn- (planșe), ax- (axa numerelor), tt- (pușculița și textele de sub ea), tc- (calendarul),
   am- (amfiteatrul), tr- (rezervorul), lab-/ls- (comun laboratoarelor), sa- (salturi pe axă),
   ca- (când ajunge?), an- (antrenament). */

/* stațiile-laborator nu au planșă: exercițiul ocupă toată lățimea */
.lesson:has(> .work:empty){grid-template-columns:minmax(0,1fr)}
.lesson > .work:empty{display:none}

/* ---------- planșe desenate ---------- */
.plate .tn-turn,.plate .tn-cal,.plate .tn-rez,.plate .tn-axw,.plate .tn-dou{background:var(--card);color:var(--ink);border-radius:12px;font-weight:800}
.tn-axw{padding:6px}
.tn-amf{display:block;width:100%;height:auto}

/* axa numerelor (SVG) */
.tn-ax{display:block;width:100%;height:auto}
.ax-l{stroke:var(--ink);stroke-width:3;stroke-linecap:round}
.ax-t{stroke:var(--muted);stroke-width:1.5}
.ax-t.ax-big{stroke:var(--ink);stroke-width:2}
.ax-arc path{fill:none;stroke:var(--sky);stroke-width:3;stroke-linecap:round}
.ax-arc polygon{fill:var(--sky)}
.ax-arc text{fill:var(--sky);font:800 17px var(--f-body);text-anchor:middle}
.ax-arc.a1 path{stroke:var(--berry)} .ax-arc.a1 polygon{fill:var(--berry)} .ax-arc.a1 text{fill:var(--berry)}
.ax-p circle{fill:var(--leaf);stroke:var(--card);stroke-width:2}
.ax-n{fill:var(--ink);font:800 19px var(--f-display);text-anchor:middle}
.ax-s{fill:var(--muted);font:800 14px var(--f-body);text-anchor:middle}
.ax-f{font-size:18px;text-anchor:middle}
.ax-p.nq circle{fill:var(--card);stroke:var(--berry);stroke-width:3;stroke-dasharray:4 3}
.ax-p.nq .ax-n{fill:var(--berry)}
.ax-p.ax-tinta circle{fill:var(--sun);stroke:var(--sun-edge);stroke-width:3}
/* laboratorul „Salturi pe axă”: steaguri, aterizări, salturi */
.ax-p.ax-flag circle{fill:var(--sun);stroke:var(--sun-edge);stroke-width:3;r:9px}
.ax-p.ax-flag.ax-hit circle{fill:var(--leaf);stroke:var(--leaf-deep)}
.ax-p.ax-flag.ax-rat circle{fill:var(--berry-tint);stroke:var(--berry)}
.ax-p.ax-flag.ax-rat .ax-n{fill:var(--berry)}
.ax-p.ax-land circle{fill:var(--sky);stroke:var(--card);r:5px}
.sa-j path{stroke-dasharray:240;stroke-dashoffset:240;animation:ax-draw .45s ease-out forwards}
.sa-j polygon,.sa-j text{opacity:0;animation:ax-fade .2s ease-out forwards}
.sa-j:nth-of-type(2) path{animation-delay:.35s} .sa-j:nth-of-type(2) polygon,.sa-j:nth-of-type(2) text{animation-delay:.7s}
.sa-j:nth-of-type(3) path{animation-delay:.7s} .sa-j:nth-of-type(3) polygon,.sa-j:nth-of-type(3) text{animation-delay:1.05s}
.sa-j:nth-of-type(4) path{animation-delay:1.05s} .sa-j:nth-of-type(4) polygon,.sa-j:nth-of-type(4) text{animation-delay:1.4s}
.sa-j:nth-of-type(1) polygon,.sa-j:nth-of-type(1) text{animation-delay:.35s}
@keyframes ax-draw{to{stroke-dashoffset:0}}
@keyframes ax-fade{to{opacity:1}}

/* pușculița: turnul de monede */
.tn-turn,.tn-rez{display:flex;align-items:flex-end;justify-content:center;gap:16px;padding:14px}
.tt-pig{font-size:calc(46px * var(--fs));line-height:1;align-self:flex-end}
.tt-col{display:flex;flex-direction:column;align-items:center;gap:3px;min-width:calc(78px * var(--fs))}
.tt-coin{display:flex;align-items:center;justify-content:center;width:calc(62px * var(--fs));height:calc(19px * var(--fs));border-radius:99px;
  background:var(--sun);border:2px solid var(--sun-edge);color:var(--on-sun);font-size:calc(13px * var(--fs));line-height:1;box-sizing:border-box;transition:opacity .3s}
.tt-coin:not(.on):not(.tt-q){opacity:.12}
.tt-coin.tt-q{background:var(--card);border:2px dashed var(--berry);color:var(--berry)}
.tt-base{display:flex;align-items:center;justify-content:center;min-width:calc(78px * var(--fs));height:calc(32px * var(--fs));padding:0 8px;border-radius:10px;
  background:var(--leaf-tint);border:2px solid var(--leaf);color:var(--ink);font-family:var(--f-display);font-size:calc(17px * var(--fs));box-sizing:border-box;white-space:nowrap}
.tt-info{display:grid;gap:8px;min-width:0}
.tt-lbl{margin:0;font-size:calc(17px * var(--fs));color:var(--muted)}
.tt-lbl b{font-family:var(--f-display);font-size:1.5em;color:var(--leaf-deep)}
.tt-sir{display:flex;flex-wrap:wrap;align-items:center;gap:4px;max-width:calc(250px * var(--fs))}
.tt-sir i{font-style:normal;color:var(--muted);font-size:calc(14px * var(--fs))}
.tt-t{display:inline-flex;align-items:center;justify-content:center;min-width:calc(32px * var(--fs));height:calc(28px * var(--fs));padding:0 4px;border-radius:8px;
  background:var(--sky-tint);border:2px solid var(--sky);font-family:var(--f-display);font-size:calc(16px * var(--fs));box-sizing:border-box;transition:opacity .3s}
.tt-t:not(.on):not(.nq){opacity:.15}
.tt-t.nq{background:var(--card);border:2px dashed var(--berry);color:var(--berry)}
.tn-anim .nou{animation:tn-pop .45s ease-out}
@keyframes tn-pop{0%{transform:scale(.6)}70%{transform:scale(1.12)}100%{transform:none}}

/* rezervorul */
.tr-tank{position:relative;width:calc(90px * var(--fs));height:calc(150px * var(--fs));border:4px solid var(--ink);border-top-width:2px;border-radius:6px 6px 18px 18px;
  background:var(--paper);overflow:hidden;flex:0 0 auto}
.tr-apa{position:absolute;left:0;right:0;bottom:0;background:var(--sky);opacity:.75;transition:height .6s ease-in-out}
.tr-rob{position:absolute;right:-2px;bottom:4px;font-size:calc(22px * var(--fs))}

/* calendarul */
.tn-cal{padding:10px 12px}
.tc-t{margin:0 0 6px;text-align:center;font-size:calc(17px * var(--fs))}
.tc-g{display:grid;grid-template-columns:repeat(7,1fr);gap:3px}
.tc-h{text-align:center;font-size:calc(12px * var(--fs));color:var(--muted)}
.tc-z{display:flex;align-items:center;justify-content:center;height:calc(27px * var(--fs));border-radius:7px;border:1px solid var(--line);font-size:calc(14px * var(--fs));
  background:var(--paper);color:var(--ink)}
.tc-z.m.on{background:var(--leaf);border-color:var(--leaf-deep);color:var(--on-leaf);box-shadow:0 0 0 2px var(--leaf-tint)}

/* amfiteatrul */
.am-r circle{fill:var(--sky)}
.am-r:nth-of-type(2n) circle{fill:var(--leaf)}
.am-l{fill:var(--muted);font:800 14px var(--f-body)}
.am-l tspan{fill:var(--ink);font:800 17px var(--f-display)}
.am-q{fill:var(--berry);font:800 17px var(--f-body);text-anchor:middle}
.am-d{fill:var(--muted);font:800 18px var(--f-body);text-anchor:middle}
.am-sc{fill:var(--sun);stroke:var(--sun-edge);stroke-width:2}
.am-st{fill:var(--on-sun);font:800 11px var(--f-body);text-anchor:middle}

/* stația 11: două axe una sub alta */
.tn-dou{display:grid;gap:2px;padding:4px}

/* ---------- comun laboratoarelor ---------- */
.sa,.ca,.an{--kp-e:color-mix(in srgb,var(--sky) 55%,var(--line))}
.lab-top{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;font-weight:800;color:var(--muted);font-size:calc(15px * var(--fs))}
.lab-top b{color:var(--ink)}
.lab-lab{margin:0;font-weight:800;color:var(--ink);font-size:calc(17px * var(--fs))}
.lab-tiles{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.lab-tiles:empty{display:none}
.lab-t{min-width:calc(64px * var(--fs));height:calc(50px * var(--fs));padding:0 12px;border:3px solid var(--kp-e);border-radius:14px;background:var(--card);color:var(--ink);
  font-family:var(--f-display);font-size:calc(22px * var(--fs));font-weight:800;box-shadow:0 5px 0 var(--kp-e);cursor:pointer;transition:transform .15s;
  display:inline-flex;align-items:center;justify-content:center}
.lab-t:hover{transform:translateY(-2px)}
.lab-t.ales{background:var(--berry);border-color:var(--berry);color:var(--card);box-shadow:0 5px 0 var(--ink);transform:translateY(-3px)}
.lab-t.bad{animation:lab-shake .45s}
.lab-t:disabled{cursor:default}
.lab-t:disabled:not(.ales){opacity:.5}
.lab-act{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-top:10px;padding-top:8px;border-top:2px dashed var(--line)}
.lab-act .btn:last-child{margin-left:auto}
.lab-act .verif:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.lab-msg{color:var(--muted);font-weight:800;font-size:calc(15px * var(--fs));flex:1 1 200px;min-height:1.3em}
.lab-msg.bine{color:var(--leaf-deep)} .lab-msg.rau{color:var(--berry)}
@keyframes lab-shake{0%,100%{transform:none}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
/* șirul ca plăcuțe (laboratoare și antrenament) */
.lab-sir{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px}
.lab-sir i{font-style:normal;color:var(--muted);font-weight:800}
.ls-t{display:inline-flex;align-items:center;justify-content:center;min-width:calc(52px * var(--fs));height:calc(44px * var(--fs));padding:0 8px;border-radius:12px;
  background:var(--sky-tint);border:3px solid var(--sky);color:var(--ink);font-family:var(--f-display);font-size:calc(23px * var(--fs));box-sizing:border-box}
.ls-t.nq{background:var(--card);border:3px dashed var(--berry);color:var(--berry)}
.ls-t.plin{background:var(--leaf-tint);border-color:var(--leaf);color:var(--leaf-deep);animation:tn-pop .4s ease-out}

/* ---------- laborator 1: salturi pe axă ---------- */
.sa-sir{margin:8px 0 2px}
.sa-ax{background:var(--paper);border:2px dashed var(--line);border-radius:14px;padding:0 6px;margin:6px 0}
.sa-ctrl{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}

/* ---------- laborator 2: când ajunge? ---------- */
.ca-main{display:flex;align-items:stretch;gap:22px;margin:10px 0 34px}
.ca-g.bani .ca-f{background:var(--sun)} .ca-g.apa .ca-f{background:var(--sky)}
.ca-g{position:relative;flex:0 0 auto;width:calc(86px * var(--fs));height:calc(230px * var(--fs));border:4px solid var(--ink);border-radius:12px;background:var(--paper);overflow:visible}
.ca-f{position:absolute;left:0;right:0;bottom:0;background:var(--leaf);opacity:.8;border-radius:0 0 8px 8px;transition:height .45s ease-out}
.ca-t{position:absolute;left:-10px;right:-10px;height:0;border-top:4px dashed var(--berry)}
.ca-t span{position:absolute;right:-6px;top:-24px;transform:translateX(100%);font-weight:800;font-size:calc(14px * var(--fs));color:var(--berry);white-space:nowrap}
.ca-v{position:absolute;left:50%;bottom:-30px;transform:translateX(-50%);font-family:var(--f-display);font-size:calc(17px * var(--fs));white-space:nowrap;color:var(--ink)}
.ca-dr{flex:1 1 auto;min-width:0;display:grid;gap:12px;align-content:start;padding-left:60px}
.ca-tinta b{color:var(--berry)}
.ca-sir{display:flex;flex-wrap:wrap;align-items:center;gap:4px;min-height:calc(50px * var(--fs))}
.ca-n{display:inline-flex;align-items:center;justify-content:center;min-width:calc(50px * var(--fs));height:calc(42px * var(--fs));padding:0 6px;border-radius:12px;
  background:var(--sky-tint);border:3px solid var(--sky);font-family:var(--f-display);font-size:calc(21px * var(--fs));box-sizing:border-box;color:var(--ink)}
.ca-n.nou{animation:tn-pop .4s ease-out}
.ca-n.tinta{background:var(--leaf-tint);border-color:var(--leaf);color:var(--leaf-deep)}
.ca-pas{position:relative;font-weight:800;font-size:calc(14px * var(--fs));color:var(--berry);padding:0 2px}
.ca-pas.numarat::after{content:attr(data-k);position:absolute;left:50%;top:-20px;transform:translateX(-50%);min-width:18px;height:18px;border-radius:99px;
  background:var(--berry);color:var(--card);font-size:11px;line-height:18px;text-align:center}
.ca-ctrl{justify-content:flex-start}
.ca-ctrl .btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.ca-faza{display:grid;gap:10px;justify-items:start}
.ca-os{justify-content:flex-start}
.ca-o{min-width:calc(140px * var(--fs));font-size:calc(19px * var(--fs))}

/* ---------- 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:tn-pop .4s ease-out}
.an-mid{display:grid;gap:14px;justify-items:center;margin:16px 0 12px}
.an-q{font-size:calc(21px * var(--fs));font-weight:800;margin:0;color:var(--ink);line-height:1.35;text-align:center}
.an-var{justify-content:center}
.an-var .chip{font-family:var(--f-display);font-size:calc(21px * var(--fs));min-width:5.5em;min-height:calc(48px * var(--fs))}
.an-msg{min-height:1.5em;margin:10px 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-final .an-q{margin:10px 0}
.an-scor{font-family:var(--f-display);font-size:calc(54px * var(--fs));color:var(--leaf-deep);animation:tn-pop .5s}

/* telefon */
html.flow .ca-main{flex-direction:column;align-items:center}
html.flow .ca-g{height:calc(150px * var(--fs));margin-bottom:30px}
html.flow .ca-dr{padding-left:0;width:100%}
html.flow .tn-turn,html.flow .tn-rez{flex-wrap:wrap}
html.flow .ls-t{min-width:calc(42px * var(--fs));font-size:calc(19px * var(--fs))}
html.flow .lab-t{min-width:calc(54px * var(--fs))}

/* fără animații (accesibilitate) și mișcare redusă: totul rămâne pe starea completă */
html.a-still .tn-anim *,html.a-still .sa *,html.a-still .ca *,html.a-still .an *,html.a-still .tn-ax *{animation:none!important;transition:none!important}
html.a-still .sa-j path{stroke-dashoffset:0} html.a-still .sa-j polygon,html.a-still .sa-j text{opacity:1}
@media (prefers-reduced-motion: reduce){
  .tn-anim *,.sa *,.ca *,.an *,.tn-ax *{animation:none!important;transition:none!important}
  .sa-j path{stroke-dashoffset:0} .sa-j polygon,.sa-j text{opacity:1}
}

/* 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}