:root{
  --bg:#101622; --panel:#1e2a3e; --panel2:#25364f; --line:#29374d; --text:#e6edf7; --dim:#8fa1bf;
  --acc:#e8645f; --amber:#e0a83c; --ok:#4fb38a;
  --papel:#f7f5ef; --tinta:#1f2937; --cons:#4f6d9a; --res:#d1342f; --aux:#8c97a8; --atual:#f08c00;
  --r:14px; --sombra:0 6px 24px rgba(0,0,0,.25);
}
[data-tema="claro"]{ --bg:#f3f5f9; --panel:#ffffff; --panel2:#eef1f6; --line:#d5dbe4; --text:#1f2937; --dim:#5d6b82; --sombra:0 6px 20px rgba(20,30,50,.08); }
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 Inter,system-ui,sans-serif;-webkit-text-size-adjust:100%}
h1,h2,h3{font-family:Sora,Inter,sans-serif;line-height:1.2;margin:0 0 .5em}
button,input,select,textarea{font:inherit;color:inherit}
.dim{color:var(--dim)}
[hidden]{display:none!important}

.topo{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:10px 16px;padding-top:max(10px,env(safe-area-inset-top));background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.marca{display:flex;align-items:center;gap:10px;background:none;border:0;cursor:pointer;font-family:Sora;font-size:17px;padding:0}
.marca b{color:var(--acc)}
.topo-acoes{display:flex;gap:6px}
.icone{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--panel);cursor:pointer;font-size:17px}

.ecra{max-width:1500px;margin:0 auto;padding:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;border-radius:12px;border:1px solid var(--line);background:var(--panel);cursor:pointer;font-weight:600;text-align:center}
.btn:hover{border-color:var(--dim)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.grande{padding:15px 20px;font-size:16px;border-radius:14px}
.btn.pequeno{padding:7px 12px;font-size:13.5px;border-radius:10px}
.btn.primario{background:var(--panel2)}
.btn.acento{background:var(--acc);border-color:var(--acc);color:#fff}
.btn .ico{font-size:20px}
.link{background:none;border:0;color:var(--acc);cursor:pointer;padding:0;font-weight:500}

/* Início */
.hero{max-width:720px;margin:12px auto 26px;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--sombra)}
.hero h1{font-size:clamp(22px,4vw,30px)}
.hero p{color:var(--dim);margin:0 0 18px}
.captura{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
@media (max-width:520px){.captura{grid-template-columns:1fr}}
.previsao{position:relative;margin:0 0 14px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#000}
.previsao img{display:block;width:100%;max-height:340px;object-fit:contain}
.previsao .btn{position:absolute;top:8px;right:8px;background:rgba(0,0,0,.6);color:#fff;border-color:transparent}
details{margin:0 0 12px}
summary{cursor:pointer;color:var(--dim);padding:6px 0}
textarea,input:not([type=range]),select{width:100%;padding:11px 12px;border-radius:12px;border:1px solid var(--line);background:var(--bg);outline:none}
textarea:focus,input:focus,select:focus{border-color:var(--acc)}
.campo{display:block;margin:0 0 14px}
.campo>span{display:block;font-size:13px;color:var(--dim);margin-bottom:5px}
#btnResolver{width:100%}
.bloco{max-width:1100px;margin:0 auto 26px}
.bloco h2{font-size:18px}
.cartoes{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.cartao{display:flex;gap:12px;align-items:flex-start;text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:12px;cursor:pointer;position:relative}
.cartao:hover{border-color:var(--acc)}
.cartao img,.cartao .thumb{width:64px;height:64px;border-radius:10px;object-fit:cover;flex:none;background:var(--papel);display:grid;place-items:center;color:var(--tinta);font-family:Sora;font-size:22px}
.cartao b{display:block;font-size:14.5px;line-height:1.3;margin-bottom:3px}
.cartao small{color:var(--dim)}
.cartao .apagar{position:absolute;top:6px;right:6px;border:0;background:none;color:var(--dim);cursor:pointer;font-size:15px;padding:4px}

/* Progresso */
.progresso{max-width:640px;margin:40px auto;text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:30px 22px}
.spinner{width:46px;height:46px;border-radius:50%;border:4px solid var(--line);border-top-color:var(--acc);margin:0 auto 16px;animation:gira 1s linear infinite}
@keyframes gira{to{transform:rotate(360deg)}}
.pensamento{text-align:left;max-height:260px;overflow:auto;font-size:13.5px;color:var(--dim);background:var(--bg);border-radius:12px;padding:12px;margin:14px 0;white-space:pre-wrap;border:1px solid var(--line)}
.pensamento:empty{display:none}

/* Resolução */
.resolucao{padding-bottom:118px;max-width:none}
.res-topo{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;justify-content:space-between;margin-bottom:10px}
.res-titulo h1{font-size:clamp(18px,2.4vw,24px);margin-bottom:2px}
.res-acoes{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--panel)}
.seg button{border:0;background:none;padding:7px 12px;cursor:pointer;font-size:13.5px;font-weight:600;color:var(--dim)}
.seg button.on{background:var(--acc);color:#fff}
.aviso{background:color-mix(in srgb,var(--amber) 18%,var(--panel));border:1px solid var(--amber);border-radius:12px;padding:10px 12px;margin-bottom:10px;font-size:13.5px}
.res-corpo{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:14px;align-items:start}
.vistas{display:grid;grid-template-columns:1fr 1fr;gap:14px;min-width:0}
.res-corpo[data-vista="epura"] .v3d,.res-corpo[data-vista="3d"] .vEpura{display:none}
.res-corpo[data-vista="epura"] .vistas,.res-corpo[data-vista="3d"] .vistas{grid-template-columns:1fr}
.vista{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;min-width:0}
.vista figcaption{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:8px 12px;font-family:Sora;font-weight:600;font-size:14px;border-bottom:1px solid var(--line)}
.vista figcaption small{font-family:Inter;font-weight:400;color:var(--dim)}
.ctl3d{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
.mini{border:1px solid var(--line);background:var(--panel2);border-radius:8px;padding:4px 8px;font-size:12.5px;cursor:pointer;font-family:Inter;font-weight:600}
.mini.on{background:var(--acc);border-color:var(--acc);color:#fff}
#btnZoomRepor{margin-left:auto}
.papel{background:var(--papel);height:min(68vh,640px);touch-action:none;cursor:grab}
.papel svg{width:100%;height:100%;display:block}
.cena{position:relative;height:min(68vh,640px);touch-action:none}
.cena canvas{display:block;width:100%!important;height:100%!important}
.labels3d{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.l3{position:absolute;left:0;top:0;font:600 12.5px Inter;color:var(--text);text-shadow:0 0 3px var(--bg),0 0 3px var(--bg);white-space:nowrap}
[data-tema="claro"] .l3{color:#1f2937}
.l3.pj{font-weight:500;font-size:11px;opacity:.8}
.l3.atual{color:var(--atual)}
.l3.e-resultado{color:var(--res)}
[data-tema="escuro"] .l3.e-resultado{color:#ff7b70}
.l3.plano{font-family:Sora;opacity:.7}
.l3 sub{font-size:.72em}

.passos{position:sticky;top:70px;display:flex;flex-direction:column;gap:12px;max-height:calc(100vh - 200px);overflow:auto}
.explica{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--atual);border-radius:var(--r);padding:14px 16px}
.explica-num{font:700 12px Sora;letter-spacing:.06em;text-transform:uppercase;color:var(--atual);margin-bottom:4px}
.explica h3{font-size:17px}
.explica p{margin:0 0 10px}
.porque{background:var(--bg);border-radius:10px;padding:10px 12px;font-size:14px}
.porque b{color:var(--amber)}
.medidas:empty{display:none}
.medidas{margin-top:10px;font:600 14px Inter;color:var(--ok)}
.lista-passos{list-style:none;margin:0;padding:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.lista-passos li{display:flex;gap:10px;align-items:flex-start;padding:9px 12px;border-bottom:1px solid var(--line);cursor:pointer;font-size:14px;color:var(--dim)}
.lista-passos li:last-child{border-bottom:0}
.lista-passos li .n{flex:none;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font:700 12px Sora;background:var(--panel2);color:var(--dim)}
.lista-passos li.feito{color:var(--text)}
.lista-passos li.feito .n{background:color-mix(in srgb,var(--ok) 30%,var(--panel2));color:var(--text)}
.lista-passos li.atual{background:color-mix(in srgb,var(--atual) 12%,var(--panel));color:var(--text);font-weight:600}
.lista-passos li.atual .n{background:var(--atual);color:#fff}
.resposta{background:color-mix(in srgb,var(--ok) 14%,var(--panel));border:1px solid var(--ok);border-radius:var(--r);padding:12px 14px;font-size:14px}

/* Player */
.player{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;align-items:center;gap:14px;padding:10px 16px;padding-bottom:max(10px,env(safe-area-inset-bottom));background:color-mix(in srgb,var(--panel) 94%,transparent);backdrop-filter:blur(10px);border-top:1px solid var(--line)}
.player-btns{display:flex;gap:4px}
.pbtn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--panel2);cursor:pointer;font-size:14px}
.pbtn.play{width:48px;height:48px;background:var(--acc);border-color:var(--acc);color:#fff;font-size:18px}
.linha-tempo{flex:1;position:relative;padding-bottom:16px;min-width:0}
.linha-tempo input{width:100%;accent-color:var(--acc);margin:0;height:24px}
.marcas{position:absolute;left:8px;right:8px;top:24px;height:14px}
.marcas button{position:absolute;transform:translateX(-50%);border:0;background:none;color:var(--dim);font:600 11px Sora;cursor:pointer;padding:0 3px}
.marcas button.on{color:var(--atual)}
.player-info{display:flex;flex-direction:column;align-items:flex-end;gap:4px;font:600 13px Sora;white-space:nowrap}
.player-info select{width:auto;padding:3px 6px;font-size:12px;border-radius:8px}

/* Épura (SVG) */
.ep .lt{stroke:#111;stroke-width:1.6;vector-effect:non-scaling-stroke}
.ep .ltl{fill:#111;font-size:12px;font-style:italic}
.ep .lbl{font:500 11px Inter;fill:var(--tinta);paint-order:stroke;stroke:var(--papel);stroke-width:3px;stroke-linejoin:round}
.ep .lbl .sub{font-size:8px}
.ep .tag{font-family:Sora;font-weight:700;font-size:12px}
.ep line,.ep path{fill:none;stroke:var(--tinta);stroke-width:1.3;vector-effect:non-scaling-stroke;stroke-linecap:round}
.ep .chamada{stroke:#9aa3b2;stroke-width:.8}
.ep .chamada.atual{stroke:var(--atual);stroke-opacity:.6}
.ep .pt{fill:var(--tinta);stroke:none}
.ep .trac{stroke-dasharray:6 4}
.ep .e-dados{stroke:var(--tinta);stroke-width:1.5}
.ep .e-construcao{stroke:var(--cons);stroke-width:1.1}
.ep .e-auxiliar{stroke:var(--aux);stroke-width:.8}
.ep .arco{stroke-dasharray:3 3}
.ep .e-resultado{stroke:var(--res);stroke-width:2.2}
.ep .e-invisivel{stroke-dasharray:6 4}
.ep .traco{stroke-width:1.6}
.ep .pt.e-construcao{fill:var(--cons)} .ep .pt.e-resultado{fill:var(--res)} .ep .pt.e-auxiliar{fill:var(--aux)}
.ep .lbl.e-construcao{fill:var(--cons)} .ep .lbl.e-resultado{fill:var(--res);font-weight:700}
.ep .preench{fill:var(--tinta);fill-opacity:.07;stroke:none}
.ep .preench.e-resultado{fill:var(--res);fill-opacity:.16}
.ep .atual{stroke:var(--atual)!important}
.ep .pt.atual,.ep .lbl.atual{fill:var(--atual)!important}
.ep .lbl.atual{stroke:var(--papel)!important;font-weight:700}
.ep .preench.atual{fill:var(--atual)!important;fill-opacity:.16;stroke:none!important}
.ep .dest{stroke-width:3!important}
.ep .pt.dest{fill:var(--atual)}
.ep .novo:not(.trac):not(.pt):not(.lbl):not(.preench){stroke-dasharray:1;stroke-dashoffset:1;animation:desenha .9s ease-out forwards}
.ep .novo.trac,.ep .novo.preench,.ep .lbl.novo{animation:aparece .7s ease-out both}
.ep .pt.novo{animation:pop .45s ease-out both;transform-box:fill-box;transform-origin:center}
@keyframes desenha{to{stroke-dashoffset:0}}
@keyframes aparece{from{opacity:0}}
@keyframes pop{from{transform:scale(0)}60%{transform:scale(1.8)}}

/* Diálogos */
.dlg{border:1px solid var(--line);border-radius:18px;background:var(--panel);color:var(--text);padding:20px;width:min(560px,calc(100vw - 32px));max-height:85vh;box-shadow:var(--sombra)}
.dlg::backdrop{background:rgba(0,0,0,.55)}
.dlg h3{font-size:14px;margin-top:14px;color:var(--dim)}
.dlg ul{margin:0;padding-left:20px}
.dlg img{max-width:100%;border-radius:12px;margin-bottom:10px}
.dlg-acoes{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}

@media (max-width:1100px){
  .res-corpo{grid-template-columns:1fr}
  .passos{position:static;max-height:none}
}
@media (max-width:760px){
  .vistas{grid-template-columns:1fr!important}
  .res-corpo[data-vista="ambos"] .papel,.res-corpo[data-vista="ambos"] .cena{height:52vh}
  .papel,.cena{height:58vh}
  .player{gap:8px;padding-left:10px;padding-right:10px}
  .pbtn{width:34px;height:34px;font-size:12px}
  .pbtn.play{width:42px;height:42px}
  #pPrimeiro,#pUltimo{display:none}
  .player-info select{display:none}
  .res-acoes{width:100%}
}
@media print{
  .topo,.player,.res-acoes,.ctl3d,.v3d{display:none!important}
}

/* ---- v2: base de dados, dados e métodos ---- */
.nota-ia{font-size:13px;margin:10px 2px 0}
.ou{display:flex;align-items:center;gap:10px;color:var(--dim);margin:16px 0;font-size:13px}
.ou::before,.ou::after{content:"";flex:1;height:1px;background:var(--line)}
#btnEscolher,#btnLer{width:100%}
.tema{font-size:14px;color:var(--dim);text-transform:uppercase;letter-spacing:.06em;margin:18px 0 8px}
.bloco h2 small{font-family:Inter;font-weight:500;font-size:13px}
.dados{max-width:1200px}
.dados-grelha{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:14px;align-items:start}
@media (max-width:900px){.dados-grelha{grid-template-columns:1fr}}
.cartao-g{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px}
.cartao-g h3{font-size:16px;margin-top:6px}
.lido{display:flex;gap:12px;background:var(--bg);border:1px solid var(--amber);border-radius:12px;padding:10px;margin-bottom:14px;font-size:13.5px}
.lido img{width:90px;height:90px;object-fit:cover;border-radius:8px;flex:none}
.lido p{margin:4px 0}
.form-dados{display:flex;flex-direction:column;gap:10px;margin-bottom:14px}
.param{display:grid;grid-template-columns:170px 1fr;gap:10px;align-items:center;padding:8px 0;border-bottom:1px dashed var(--line)}
@media (max-width:520px){.param{grid-template-columns:1fr}}
.param-rot{font-size:13.5px;color:var(--dim)}
.param-campos{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-family:Sora;font-weight:600}
.param-campos input{width:74px;padding:7px 8px;text-align:center;font-family:Inter}
.param-campos select{width:auto;padding:7px 8px}
.p-escolha .param-campos select{width:100%}
.mini-campo{display:flex;flex-direction:column;gap:3px;font-family:Inter;font-weight:400}
.mini-campo span{font-size:11.5px;color:var(--dim)}
.mini-campo>input,.mini-campo>select{display:inline-block}
.mini-campo{flex-direction:row;flex-wrap:wrap;align-items:center;gap:4px 6px;width:100%}
.mini-campo span{width:100%}
.p-plano .param-campos small{width:100%;font-family:Inter;font-weight:400}
.enunciado-gerado{background:var(--bg);border-radius:12px;padding:10px 12px;font-size:14px}
.enunciado-gerado p{margin:4px 0 0}
.metodos{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.metodo{display:flex;gap:10px;align-items:flex-start;padding:12px;border:1px solid var(--line);border-radius:12px;cursor:pointer;background:var(--bg)}
.metodo input{display:none}
.metodo.on{border-color:var(--acc);background:color-mix(in srgb,var(--acc) 10%,var(--bg))}
.metodo b{display:block;font-size:14.5px}
.metodo small{display:block;color:var(--dim);font-size:13px;margin-top:2px}
.metodo em{display:block;color:var(--amber);font-size:12.5px;margin-top:4px;font-style:normal}
.metodo.indisp{opacity:.6;cursor:not-allowed}
.met-n{flex:none;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font:700 12px Sora;background:var(--panel2)}
.metodo.on .met-n{background:var(--acc);color:#fff}
#btnResolver{width:100%}
.metodos-chips{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:10px;font-size:13px}
.chip{border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:5px 12px;cursor:pointer;font-size:13px;font-weight:600;color:var(--dim)}
.chip.on{background:var(--acc);border-color:var(--acc);color:#fff}
.cartao .thumb{font-size:20px}

/* ---- telemóvel ---- */
.topo{padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}
#btnInstalar{padding:7px 12px}
.dlg ol{margin:0 0 8px;padding-left:20px}
@media (max-width:520px){
  .ecra{padding:12px}
  .hero{padding:18px;margin-top:4px}
  .marca span{font-size:15px}
  .res-topo{gap:8px}
  .res-acoes .btn.pequeno{padding:6px 9px;font-size:12.5px}
  .seg button{padding:6px 9px}
  .metodos-chips{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}
  .chip{white-space:nowrap}
  .explica{padding:12px}
}
.marca span{white-space:nowrap}
@media (max-width:420px){ .longo{display:none} .marca{gap:7px} .marca img{width:26px;height:26px} .topo-acoes{gap:4px} .icone{width:34px;height:34px} }