/* aplicatie.css — stiluri proprii lecției „Aria dreptunghiului” (doar variabile de culoare; prefix ad-, adl-, adc-, adh-, an-). */

/* ---------- desenele SVG: rețeaua de pătrățele-unitate ---------- */
.ad-svg{display:block;width:100%;height:auto;max-height:100%;overflow:visible}
.ad-svg text{font-family:var(--f-display);font-weight:800;dominant-baseline:middle}
.ad-fond{fill:var(--card);stroke:var(--line);stroke-width:2;stroke-dasharray:5 4}
.ad-cel,.ad-cel1{fill:var(--leaf-tint);stroke:var(--leaf);stroke-width:1.5}
.ad-row .ad-cel,.ad-row .ad-nr{opacity:0;transition:opacity .35s}
.ad-row.plin .ad-cel,.ad-row.plin .ad-nr{opacity:1}
.ad-lin{stroke:var(--leaf);stroke-width:1.5;opacity:.55}
.ad-contur{fill:none;stroke:var(--leaf-deep);stroke-width:3}
.ad-nr{fill:var(--leaf-deep);text-anchor:middle}
.ad-tot{fill:var(--sun-ink);opacity:0;transition:opacity .35s}
.ad-tot.plin{opacity:1}
.ad-cota line{stroke:currentColor;stroke-width:2}
.ad-cota text{fill:currentColor;text-anchor:middle}
.ad-cota .ad-st,.ad-cl text{text-anchor:end}
.ad-cL{color:var(--berry)}
.ad-cl{color:var(--sky)}
.ad-nor{fill:var(--sky-tint);stroke:var(--sky);stroke-width:2.5;stroke-dasharray:8 6}
.ad-q{fill:var(--sky);text-anchor:middle;font-size:44px}
.ad-fant{fill:none;stroke:var(--line);stroke-width:1.2}
.ad-margine{fill:none;stroke:var(--berry);stroke-width:7;stroke-linejoin:round}

/* planșele: fundal de card și text lizibil în toate stilurile (card-ink) */
.plate .ad-fig,.plate .ad-unit,.plate .ad-tab,.plate .ad-ap,.plate .ad-fam{background:var(--card);color:var(--ink);border-radius:12px;padding:14px;font-weight:800}
.ad-fig{text-align:center}
.ad-fig .ad-svg{max-width:440px;max-height:330px;margin:0 auto}
/* L și l înclinate, cu serife: „l” nu se mai confundă cu „I” */
.ad-v,.ad-formula .ad-kL,.ad-formula .ad-kl{font-family:Georgia,"Times New Roman",serif;font-style:italic;font-weight:700}
.ad-cap{margin:10px 0 0;min-height:1.5em;font-family:var(--f-display);font-size:calc(21px * var(--fs));color:var(--ink);line-height:1.25}
.ad-fig.ad-gata .ad-cap{color:var(--leaf-deep)}
.ad-formula{display:flex;flex-wrap:wrap;gap:8px 14px;justify-content:center;align-items:center;margin:10px 0 0;font-family:var(--f-display);font-size:calc(22px * var(--fs))}
.ad-formula span{background:var(--sun-tint);border-radius:10px;padding:2px 12px}
.ad-formula b{color:var(--leaf-deep)}
.ad-formula .ad-kL{color:var(--berry)} .ad-formula .ad-kl{color:var(--sky)}

/* stația 2: unitățile */
.ad-unit{display:grid;grid-template-columns:1.6fr 1fr;gap:16px;align-items:center;text-align:center}
.ad-unit .ad-svg{max-width:300px;margin:0 auto}
.ad-ut{fill:var(--leaf-deep);text-anchor:middle;font-size:19px}
.ad-us{fill:var(--muted);text-anchor:middle;font-size:12px}
.ad-unit>div{display:flex;flex-direction:column;align-items:center;gap:6px;min-width:0}
.ad-unit small{font-size:calc(13px * var(--fs));color:var(--muted);line-height:1.2}
.ad-m2{display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:1;max-width:130px;border:4px dashed var(--leaf);border-radius:8px;background:var(--leaf-tint);font-family:var(--f-display);font-size:calc(26px * var(--fs));color:var(--leaf-deep)}

/* stația 7: tabelul unităților */
.ad-tab{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ad-tc{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;align-items:center;align-content:start;border-radius:12px;padding:12px;text-align:center}
.ad-tc b{grid-column:1/-1;font-family:var(--f-display);font-size:calc(24px * var(--fs))}
.ad-tc small{grid-column:1/-1;color:var(--muted);font-size:calc(14px * var(--fs))}
.ad-tc span{border-radius:10px;padding:6px 0;font-size:calc(22px * var(--fs));background:var(--card)}
.ad-tl{background:var(--sky-tint)} .ad-tl b{color:var(--sky)}
.ad-ta{background:var(--leaf-tint)} .ad-ta b{color:var(--leaf-deep)}
.ad-tc i{grid-column:1/-1;justify-self:center;display:block}
.ad-bat{width:80%;height:8px;border-radius:4px;background:var(--sky)}
.ad-pat{width:56px;height:56px;border-radius:4px;background:var(--leaf);opacity:.8}

/* stația 8: arie sau perimetru */
.ad-ap{display:grid;grid-template-columns:1fr 1fr;gap:14px;text-align:center}
.ad-ap>div{display:flex;flex-direction:column;align-items:center;gap:4px;min-width:0}
.ad-ap .ad-svg{max-width:190px}
.ad-ap b{font-family:var(--f-display);font-size:calc(23px * var(--fs))}
.ad-apP{color:var(--berry)} .ad-apA{color:var(--leaf-deep)}
.ad-ap small{color:var(--muted);font-size:calc(14px * var(--fs))}
.ad-ap span{background:var(--sun-tint);border-radius:10px;padding:2px 10px;font-size:calc(18px * var(--fs))}

/* stația 11: o înmulțire și două împărțiri */
.ad-fam{display:grid;grid-template-columns:1fr 1fr;gap:10px;text-align:center}
.ad-fr{border-radius:12px;padding:10px;background:var(--sky-tint);display:flex;flex-direction:column;gap:2px}
.ad-fr b{font-family:var(--f-display);font-size:calc(26px * var(--fs));color:var(--ink)}
.ad-fr small{color:var(--muted);font-size:calc(14px * var(--fs))}
.ad-f0{grid-column:1/-1;background:var(--leaf-tint)}
.ad-fex{grid-column:1/-1;margin:4px 0 0;font-size:calc(18px * var(--fs))}
.ad-fex b{color:var(--leaf-deep)}

/* imaginile din verificare: coloană mai lată, ca rețeaua și cotele să se citească */
.ad-qimg{background:var(--card);border-radius:10px;padding:10px}
html:not(.flow) .qgrid:has(.ad-qimg){grid-template-columns:280px minmax(0,1fr)}
html.flow .qgrid .plate:has(.ad-qimg){max-width:300px}

/* ---------- laboratoarele: pe toată lățimea stației ---------- */
.lesson:has(.adl-wide){grid-template-columns:minmax(0,1fr)}
.lesson:has(.adl-wide) .work{display:none}
.adl-top{display:flex;justify-content:space-between;align-items:center;gap:8px 14px;flex-wrap:wrap;font-weight:800;font-size:calc(15px * var(--fs))}
.adl-step{color:var(--muted)}
.adl-tinta{font-size:calc(19px * var(--fs));color:var(--ink)}
.adl-tinta b{color:var(--leaf-deep)}
.adl-main{display:flex;gap:22px;align-items:center;margin-top:6px}
.adl-desen{flex:0 0 auto;width:min(42%,330px);background:var(--card);border:2px solid var(--line);border-radius:14px;padding:6px}
.adl-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)}
.adl-act .verif,.adl-act .adh-urm{margin-left:auto}
.adl-act .verif:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.adl-gata{display:flex;gap:10px;flex-wrap:wrap;min-height:28px;align-items:center}
.adl-ok{background:var(--leaf-tint);color:var(--leaf-deep);border:2px solid var(--leaf);border-radius:999px;padding:2px 12px;font-weight:800;animation:ad-fade .4s ease-out}

/* constructor: rânduri cu eticheta, −, valoarea, +; toate de aceeași înălțime, pe aceeași linie */
.adc-ctrl{flex:1;display:flex;flex-direction:column;gap:12px;min-width:0}
.adc-rand{display:flex;align-items:center;gap:10px}
.adc-et{flex:0 0 7.2em;font-weight:800;font-size:calc(17px * var(--fs))}
.adc-rand:nth-child(1) .adc-et{color:var(--berry)}
.adc-rand:nth-child(2) .adc-et{color:var(--sky)}
.adc .adc-b{width:calc(52px * var(--fs));height:calc(52px * var(--fs));min-height:0;padding:0;display:inline-flex;align-items:center;justify-content:center;font-size:calc(30px * var(--fs));font-weight:900;line-height:1;border-radius:14px}
.adc .adc-b:disabled{opacity:.4;cursor:not-allowed}
.adc-val{min-width:4.2em;height:calc(52px * var(--fs));display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;border:3px solid var(--line);border-radius:14px;background:var(--card);font-family:var(--f-display);font-size:calc(24px * var(--fs))}
.adc-arie{margin:4px 0 0;font-family:var(--f-display);font-size:calc(24px * var(--fs));background:var(--leaf-tint);border-radius:12px;padding:6px 12px}
.adc-arie b{color:var(--leaf-deep)}
.adc-per{margin:0;color:var(--muted);font-weight:800;font-size:calc(15px * var(--fs))}

/* latura ascunsă: doi pași, plăcuțe mari, starea „ales” clară */
.adh-pasi{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}
.adh-pas{margin:0;font-weight:800;font-size:calc(17px * var(--fs))}
.adh-p2{opacity:.55}
.adh.adh-pas2 .adh-p2{opacity:1}
.adh .chips{display:flex;gap:10px;flex-wrap:wrap}
.adh .chip.adh-t{min-width:calc(92px * var(--fs));min-height:calc(48px * var(--fs));padding:4px 14px;font-size:calc(20px * 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}
.adh .chip.adh-t:hover:not(:disabled){transform:translateY(-2px)}
.adh .chip.adh-t:disabled{opacity:.5;cursor:default;box-shadow:none}
.adh .chip.adh-t.ales{opacity:1;background:var(--leaf);border-color:var(--leaf-deep);color:var(--on-leaf);box-shadow:0 5px 0 var(--leaf-deep)}
.adh .chip.adh-t.rau{animation:ad-shake .45s;border-color:var(--berry)}
.adh-msg{margin:2px 0 0;min-height:1.4em;font-weight:800;font-size:calc(16px * var(--fs))}
.adh-msg.bine{color:var(--leaf-deep)} .adh-msg.rau{color:var(--berry)}

/* ---------- 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:ad-pop .4s ease-out}
.an-corp{display:flex;gap:20px;align-items:center;margin-top:10px}
.an-desen{flex:0 0 auto;width:min(40%,300px);background:var(--card);border:2px solid var(--line);border-radius:14px;padding:8px}
.an-dr{flex:1;min-width:0}
.an-q{font-size:calc(22px * var(--fs));font-weight:800;margin:0 0 12px;color:var(--ink)}
.an-var{display:grid!important;grid-template-columns:1fr 1fr;gap:10px}
.an-var .chip{font-size:calc(21px * var(--fs));min-height:calc(50px * var(--fs));display:flex;align-items:center;justify-content:center}
.an-msg{min-height:1.5em;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:ad-pop .5s}

@keyframes ad-fade{from{opacity:0}to{opacity:1}}
@keyframes ad-pop{0%{transform:scale(.6)}70%{transform:scale(1.15)}100%{transform:none}}
@keyframes ad-shake{0%,100%{transform:none}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

/* telefon: desenul deasupra controalelor */
html.flow .adl-main,html.flow .an-corp{flex-direction:column;align-items:stretch}
html.flow .adl-desen,html.flow .an-desen{width:100%;max-width:360px;align-self:center}
html.flow .ad-unit{grid-template-columns:1fr}

/* mișcare redusă (sistem): fără animații decorative; rețelele sunt oprite pe starea completă din js/aplicatie.js */
@media (prefers-reduced-motion: reduce){
  .adl-ok,.an-serie,.an-scor,.adh .chip.adh-t.rau{animation:none!important}
  .ad-row .ad-cel,.ad-row .ad-nr,.ad-tot{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}