/* aplicatie.css — stiluri proprii lecției „Scade două numere cu mai multe cifre” (doar variabile de culoare).
   Toate clasele proprii au prefixul sd- / sp- / gg- / an-, ca să nu se amestece cu edulogia.css. */

/* ---------- cardul planșelor și al laboratoarelor ---------- */
.sd-card{background:var(--card);color:var(--ink);border-radius:12px;padding:12px 16px;text-align:center}
.plate .sd-card{font-weight:800}
.sd-nota{margin:8px 0 0;font-size:calc(15px * var(--fs));font-weight:800;color:var(--muted);line-height:1.3}
.sd-nota b{color:var(--ink)}
.sd-leg{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:10px}
.sd-leg span{background:var(--sun-tint);color:var(--ink);border-radius:999px;padding:3px 12px;font-size:calc(14px * var(--fs));font-weight:800}
.sd-leg b{color:var(--berry)}

/* ---------- scăderea în coloană (școala românească) ----------
   antet cu ordinele, o coloană pe ordin + o coloană pentru semn, la DREAPTA descăzutului; linia sub scăzător */
.sd-col{--w:1.1em;position:relative;display:inline-grid;grid-template-columns:repeat(var(--n),var(--w)) var(--w);
  font-family:var(--f-display);font-weight:800;font-size:calc(42px * var(--fs));line-height:1.12;font-variant-numeric:tabular-nums;color:var(--ink);vertical-align:middle}
.sd-col.sd-cu-et{grid-template-columns:auto repeat(var(--n),var(--w)) var(--w)}
.sd-col>span{display:flex;align-items:center;justify-content:center;box-sizing:border-box;min-width:0}
.sd-col.sd-mic{font-size:calc(28px * var(--fs))}
.sd-et{justify-content:flex-end!important;padding-right:.5em;font-family:var(--f-body);font-size:.36em;font-weight:900;color:var(--sky);text-transform:lowercase}
.sd-h{font-size:.4em;font-weight:900;padding:2px 0;border-radius:6px 6px 0 0;letter-spacing:.02em}
.sd-h.sd-o0{color:var(--leaf-deep);background:var(--leaf-tint)}
.sd-h.sd-o1{color:var(--sky);background:var(--sky-tint)}
.sd-h.sd-o2{color:var(--berry);background:var(--berry-tint)}
.sd-im{font-size:.5em;color:var(--berry);height:1.3em;align-items:flex-end!important;line-height:1}
.sd-semn{color:var(--berry)}
.sd-taiat{position:relative;color:var(--muted)}
.sd-taiat::after{content:"";position:absolute;left:18%;right:18%;top:52%;border-top:.07em solid var(--berry);transform:rotate(-24deg)}
.sd-r{border-top:4px solid var(--ink);min-height:1.12em}
.sd-col .sd-mii{padding-right:.14em}                     /* mic spațiu între clasa miilor și clasa unităților */
.sd-r.sd-gol::after{content:"";width:.6em;height:.86em;border:2px dashed var(--muted);border-radius:6px;opacity:.7}
.sd-act{background:var(--sun-tint)}
.sd-prop{color:var(--sky)}
.sd-rau{color:var(--berry);animation:sd-shake .45s}
.sd-r.sd-gr{background:var(--berry-tint);color:var(--leaf-deep);border-radius:0 0 6px 6px}
.sd-sag{font-size:calc(28px * var(--fs));color:var(--muted);font-weight:900}
@keyframes sd-pop{0%{transform:scale(.6)}70%{transform:scale(1.15)}100%{transform:none}}
@keyframes sd-shake{0%,100%{transform:none}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}

/* bulina împrumutului și cele 10 bucăți în care se desface (create din js/aplicatie.js) */
.sd-scena,.sp-col,.sd-zu{position:relative}
.sd-bul,.sd-mini{position:absolute;z-index:3;pointer-events:none;border-radius:50%;transform:translate(-50%,-50%)}
.sd-bul{width:calc(20px * var(--fs));height:calc(20px * var(--fs));background:var(--berry);border:3px solid var(--card);box-shadow:0 0 0 2px var(--berry)}
.sd-mini{width:calc(8px * var(--fs));height:calc(8px * var(--fs));background:var(--sun);border:1px solid var(--sun-edge)}

/* coperta și stația 7: coloana animată, cu textul pasului dedesubt */
.sd-anim{padding:16px 14px!important}
.sd-anim .sd-col{font-size:calc(50px * var(--fs))}
.sd-anim .sd-col>span{transition:background .25s,color .25s}
.sd-anim-txt{margin:10px 0 0;min-height:2.7em;display:flex;align-items:center;justify-content:center;font-size:calc(17px * var(--fs));font-weight:800;color:var(--muted);line-height:1.3}
.sd-anim-txt b{color:var(--ink)}

/* stația 4: o zece coboară la unități și se desface în 10 */
.sd-cutii{display:flex;gap:16px;justify-content:center;align-items:stretch}
.sd-cutie{display:flex;flex-direction:column;align-items:center;gap:6px;border:3px solid var(--line);border-radius:12px;padding:8px 10px}
.sd-cutie>b{font-size:calc(15px * var(--fs));color:var(--muted)}
.sd-cz{border-color:var(--sky)} .sd-cu{border-color:var(--leaf)}
.sd-buline{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;align-content:flex-start;width:calc(150px * var(--fs));min-height:calc(76px * var(--fs))}
.sd-bz{display:inline-flex;align-items:center;justify-content:center;width:calc(30px * var(--fs));height:calc(30px * var(--fs));border-radius:50%;background:var(--sky);color:var(--card);font-style:normal}
.sd-bz::after{content:"10";font-size:calc(11px * var(--fs));font-weight:900}
.sd-bz.sd-pleaca{background:var(--berry)}
.sd-bu{display:inline-block;width:calc(13px * var(--fs));height:calc(13px * var(--fs));border-radius:50%;background:var(--sun);border:2px solid var(--sun-edge);box-sizing:border-box}
.sd-nr{font-family:var(--f-display);font-size:calc(30px * var(--fs));line-height:1.1;color:var(--ink)}
.sd-nr s{color:var(--muted);text-decoration-color:var(--berry);text-decoration-thickness:3px}
.sd-nr em{font-style:normal;color:var(--berry)}
.sd-zu[data-st="0"] .sd-nou,.sd-zu[data-st="1"] .sd-nou{display:none}
.sd-zu[data-st="1"] .sd-pleaca{visibility:hidden}
.sd-zu[data-st="2"] .sd-pleaca{display:none}
.sd-zu[data-st="2"] .sd-nou{animation:sd-pop .4s ease-out both}
.sd-zu[data-st="0"] .sd-nr em,.sd-zu[data-st="1"] .sd-nr em{display:none}
.sd-zu[data-st="0"] .sd-nr s,.sd-zu[data-st="1"] .sd-nr s{text-decoration:none;color:var(--ink)}
.sd-zu-txt{margin:10px 0 0;min-height:2.6em;display:flex;align-items:center;justify-content:center;font-size:calc(17px * var(--fs));color:var(--muted)}
.sd-zu-txt b{color:var(--ink)}

/* stația 8: estimarea */
.sd-est p{margin:6px 0;font-size:calc(24px * var(--fs))}
.sd-est span{background:var(--sun-tint);border-radius:10px;padding:2px 10px}
.sd-est b{color:var(--berry)}
.sd-est .sd-est-r{border-top:3px dashed var(--line);padding-top:8px}
.sd-est .sd-nota{font-size:calc(15px * var(--fs))}

/* stația 10: scăderea și proba, una lângă alta */
.sd-proba-r{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}

/* stațiile-laborator: laboratorul primește mai mult loc, planșa rămâne mică (doar pe scenă; pe telefon totul e pe o coloană) */
html:not(.flow) .view:has(.sp,.gg,.an) .lesson{grid-template-columns:minmax(0,1.45fr) minmax(0,.55fr)}
html:not(.flow) .view:has(.sp,.gg,.an) .emoji-plansa{font-size:4.6em;padding:10px 0}

/* ---------- laborator: scăderea pas cu pas ---------- */
.sp,.gg,.an{display:grid;gap:8px}
.sp-top,.gg-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))}
.sp-op{color:var(--sky)}
.sp-main,.gg-main{display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;align-items:center}
html.flow .sp-main,html.flow .gg-main{grid-template-columns:minmax(0,1fr)}
.sp-col,.gg-col{border:2px solid var(--line);padding:6px 10px}
.sp-col .sd-col,.gg-col .sd-col{font-size:calc(36px * var(--fs))}
.sp-dr,.gg-dr{display:grid;gap:10px}
.sp-ex{margin:0;text-align:center;font-weight:800;font-size:calc(16px * var(--fs));line-height:1.35;min-height:2.7em;color:var(--ink)}
.sp-sus{color:var(--berry)}
.sp-proba{color:var(--leaf-deep);font-size:calc(14px * var(--fs))}
/* butonul împrumutului: o plăcuță mare, diferită de cifre; „apăsat” se vede clar */
.sp-imp{display:flex;align-items:center;justify-content:center;gap:10px;min-height:calc(48px * var(--fs));padding:6px 14px;border:3px dashed var(--berry);border-radius:14px;background:var(--card);color:var(--ink);font:inherit;font-weight:800;font-size:calc(16px * var(--fs));cursor:pointer;box-shadow:0 4px 0 var(--line)}
.sp-imp:hover{background:var(--berry-tint)}
.sp-pt{width:calc(18px * var(--fs));height:calc(18px * var(--fs));border-radius:50%;border:3px solid var(--berry);box-sizing:border-box;flex:none}
.sp-imp.on{border-style:solid;background:var(--berry-tint);box-shadow:0 4px 0 var(--berry);transform:translateY(-2px)}
.sp-imp.on .sp-pt{background:var(--berry)}
.sp-imp:disabled{opacity:.45;cursor:not-allowed;transform:none}
.sp-pad{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.sp .sp-pad .chip.sp-d{display:flex;align-items:center;justify-content:center;min-height:calc(44px * var(--fs));padding:0;font-family:var(--f-display);font-size:calc(22px * var(--fs));color:var(--ink);border:3px solid var(--line);border-radius:12px;box-shadow:0 4px 0 var(--line);cursor:pointer}
.sp .sp-pad .chip.sp-d:hover{border-color:var(--sky)}
.sp .sp-pad .chip.sp-d.ales{background:var(--sky);border-color:var(--sky);color:var(--card);box-shadow:0 4px 0 var(--ink);transform:translateY(-2px)}
.sp .sp-pad .chip.sp-d:disabled{opacity:.45;transform:none}
.sp-act,.gg-act{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;padding-top:8px;border-top:2px dashed var(--line)}
.sp-act .verif,.gg-act .verif,.gg-act .gg-next{margin-left:auto}
.sp-act .verif:disabled,.gg-act .verif:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

/* ---------- laborator: găsește greșeala ---------- */
.gg-pct{display:flex;gap:6px}
.gg-pct i{width:26px;height:8px;border-radius:99px;background:var(--line)}
.gg-pct i.acum{background:var(--sun)} .gg-pct i.gata{background:var(--leaf)}
.gg-ex{margin:0;font-weight:800;font-size:calc(15px * var(--fs));line-height:1.35;color:var(--ink)}
.gg-ex.gg-bine{font-size:calc(18px * var(--fs));text-align:center}
.gg-ex s{color:var(--berry)} .gg-ex b{color:var(--leaf-deep)}
.gg-proba{font-size:calc(14px * var(--fs));color:var(--muted)}
.gg-col .sd-r.gg-cif{cursor:pointer;outline:2px dashed var(--sky);outline-offset:-3px;border-radius:0 0 6px 6px}
.gg-col .sd-r.gg-cif:hover{background:var(--sky-tint)}
.gg-col .sd-r.gg-cif.ales{background:var(--berry);color:var(--card);outline-color:var(--berry)}
.gg-cauze{display:grid;gap:8px}
.gg-c{display:flex;align-items:center;min-height:calc(44px * var(--fs));padding:6px 12px;text-align:left;border:3px solid var(--line);border-radius:12px;background:var(--card);color:var(--ink);font:inherit;font-weight:800;font-size:calc(15px * var(--fs));line-height:1.25;box-shadow:0 4px 0 var(--line);cursor:pointer}
.gg-c:hover{border-color:var(--sky)}
.gg-c.ales{background:var(--sky-tint);border-color:var(--sky);box-shadow:0 4px 0 var(--sky);transform:translateY(-2px)}
.gg-msg{flex:1}

/* ---------- 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:sd-pop .4s ease-out}
.an-titlu{margin:0;font-weight:800;font-size:calc(16px * var(--fs));color:var(--ink)}
.an-col{border:2px solid var(--line);padding:6px 10px}
.an-col .sd-col{font-size:calc(32px * var(--fs))}
.an-col .sd-col.sd-mic{font-size:calc(28px * var(--fs))}
.an-expr{margin:6px 0;font-family:var(--f-display);font-size:calc(30px * var(--fs));color:var(--ink)}
.an-gol{display:inline-block;min-width:3em;border-bottom:3px dashed var(--leaf);color:var(--muted)}
.an-gol.plin{border-bottom-style:solid;color:var(--leaf-deep);animation:sd-pop .35s}
.an-var{justify-content:center;gap:10px}
.an .an-var .chip{font-size:calc(18px * var(--fs));min-width:6.5em;min-height:calc(44px * var(--fs));border-width:3px;border-radius:14px}
.an-msg{min-height:1.4em;margin: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-q{font-size:calc(24px * var(--fs));font-weight:800;margin:8px 0;color:var(--ink)}
.an-scor{font-family:var(--f-display);font-size:calc(54px * var(--fs));color:var(--leaf-deep);animation:sd-pop .5s}

/* mișcare redusă (sistem) și „fără animații”: animațiile decorative se opresc; coloanele animate sunt oprite din js/aplicatie.js */
@media (prefers-reduced-motion: reduce){
  .sd-rau,.sd-zu .sd-nou,.an-gol,.an-scor,.an-serie,.sd-anim .sd-col>span{animation:none!important;transition:none!important}
  .sd-bul,.sd-mini{display:none}
}
html.a-still .sd-bul,html.a-still .sd-mini{display:none}

/* 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}