/* Musique · Laboratório Musical — estilos. Tokens oficiais do Grupo
   Villela Stay (navy, gold, ice, graphite), herdados de paginas.js.
   Classes com prefixo lab- (lição: CSS de componente em folha
   compartilhada colide). */
.lab{padding:18px 20px 48px}
.lab h1{font-size:clamp(26px,4.2vw,38px);line-height:1.2;margin:6px 0 10px}
.lab h1 small{display:block;font:500 16px Inter,sans-serif;color:var(--suave);margin-top:4px}
.lab h2{font-size:clamp(20px,3vw,25px);margin:28px 0 10px}
.lab-lead{font-size:18px;color:var(--suave);max-width:760px;margin:0 0 14px}
.lab-cab-tipo{font:600 12px Inter,sans-serif;letter-spacing:.12em;text-transform:uppercase;color:#8A6D12;margin:0}
.lab-sub{background:#fff;border-bottom:1px solid var(--borda);position:sticky;top:0;z-index:20}
.lab-sub .wrap{display:flex;gap:4px;align-items:center;flex-wrap:wrap;padding:6px 20px}
.lab-sub a{white-space:nowrap;text-decoration:none;color:var(--graphite);font:500 14px Inter,sans-serif;padding:8px 10px;border-radius:8px}
.lab-sub a:hover,.lab-sub a:focus-visible{background:var(--ice)}
.lab-sub-home{font-weight:600!important;color:var(--navy)!important}
.lab-busca-mini{margin-left:auto;min-width:180px}
.lab-busca-mini input{width:100%;border:1px solid var(--borda);border-radius:999px;padding:7px 12px;font:14px Inter,sans-serif}
.lab-migalhas{font-size:14px;color:var(--suave);margin:4px 0 10px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.lab-migalhas a{color:var(--suave)}
.lab-fav{margin-left:auto;background:#fff;border:1px solid var(--borda);border-radius:999px;padding:5px 12px;font:500 13px Inter,sans-serif;cursor:pointer;color:var(--navy)}
.lab-fav[aria-pressed="true"]{background:#FEF3C7;border-color:#FDE68A}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}

/* hero, busca e caminhos */
.lab-hero{padding:18px 0 6px}
.lab-busca{margin:18px 0 8px;max-width:760px}
.lab-busca label{font-weight:600;display:block;margin-bottom:6px}
.lab-busca-linha{display:flex;gap:8px}
.lab-busca-linha input{flex:1;min-width:0;border:1px solid var(--borda);border-radius:12px;padding:12px 14px;font:16px Inter,sans-serif}
.lab-dica{font-size:14px;color:var(--suave)}
.lab-sugestoes{list-style:none;padding:0;margin:8px 0 0}
.lab-sugestoes li a{display:block;padding:8px 10px;border-radius:8px;text-decoration:none;color:var(--graphite)}
.lab-sugestoes li a:hover{background:#fff}
.lab-sugestoes small{color:var(--suave)}
.lab-caminhos{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:22px 0}
.lab-caminho{background:var(--navy);color:#fff!important;border-radius:var(--raio);padding:20px;text-decoration:none;display:flex;flex-direction:column;gap:6px}
.lab-caminho strong{font:600 19px Lora,Georgia,serif}
.lab-caminho span{color:#D7DCE6;font-size:15px}
.lab-caminho .lab-caminho-ico{font-size:26px;color:#fff}
.lab-cartoes{list-style:none;padding:0;margin:14px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px}
.lab-cartao{display:grid;grid-template-columns:40px 1fr;gap:2px 10px;background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:16px;text-decoration:none;color:var(--graphite);height:100%}
.lab-cartao:hover{border-color:var(--navy)}
.lab-cartao-ico{grid-row:span 2;font-size:26px;line-height:1.2}
.lab-cartao-t{font-weight:600;color:var(--navy)}
.lab-cartao-r{font-size:14px;color:var(--suave)}
.lab-selo{display:inline-block;background:#FEF3C7;border:1px solid #FDE68A;color:#7A4E06;border-radius:999px;padding:1px 8px;font:600 11px Inter,sans-serif;vertical-align:middle}

/* blocos, figuras e tabelas */
.lab-bloco{margin:10px 0 18px}
.lab-fig{margin:12px 0;background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:12px}
.lab-fig figcaption{font-size:14px;color:var(--suave);margin-top:6px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.lab-fig-rola,.lab-rola{overflow-x:auto}
.lab-fig-circ svg{width:100%;max-width:380px;margin:0 auto;display:block}
.lab-svgbox svg,.lab-fig svg{max-width:100%;height:auto;display:block}
.lab-fig-rola svg,.lab-rola svg{min-width:640px}
.lab-grade-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px}
.lab-grade-inv,.lab-grade-diag{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.lab-grade-diag svg{min-width:260px}
.lab-tabela-rolagem{overflow-x:auto;margin:10px 0}
.lab-tabela{border-collapse:collapse;width:100%;background:#fff;font-size:15px}
.lab-tabela caption{text-align:left;font-weight:600;padding:6px 0;color:var(--navy)}
.lab-tabela th,.lab-tabela td{border:1px solid var(--borda);padding:7px 9px;text-align:left;vertical-align:top}
.lab-tabela thead th{background:var(--ice)}
.lab-atlas td{text-align:center;padding:5px}
.lab-atlas td a{text-decoration:none}
.lab-figuras .glifo{text-align:center}
.lab-chips{list-style:none;padding:0;margin:8px 0;display:flex;flex-wrap:wrap;gap:6px}
.lab-chips li a,.lab-chip-btn{display:inline-block;background:#fff;border:1px solid var(--borda);border-radius:999px;padding:6px 12px;text-decoration:none;font-size:14px;color:var(--navy);cursor:pointer;font-family:Inter,sans-serif}
.lab-chips li a[aria-current]{background:var(--navy);color:#fff;border-color:var(--navy)}
.lab-alias{font-size:14px;color:var(--suave)}
.lab-nota-convencao{background:#F1F5F9;border-left:3px solid var(--navy);padding:12px 14px;border-radius:8px;font-size:15px;color:#334155;margin:12px 0}
.lab-det{background:#fff;border:1px solid var(--borda);border-radius:10px;padding:10px 14px;margin:10px 0}
.lab-det summary{cursor:pointer;font-weight:600;color:var(--navy)}
.lab-legenda{font-size:14px;color:var(--suave)}
.lab-func{display:inline-block;min-width:22px;text-align:center;border-radius:6px;font:700 13px Inter,sans-serif;padding:1px 5px;border:2px solid}
.lab-func-T{background:#E8F5EE;color:#0F5D3C;border-color:#0F5D3C}
.lab-func-S{background:#EEF2FF;color:#1E3A8A;border-color:#1E3A8A;border-style:dashed}
.lab-func-D{background:#FEF2F2;color:#8A1C1C;border-color:#8A1C1C;border-style:double}
.lab-lista-prog li{margin:8px 0}
.lab-acoes{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:10px 0}
.lab-link-lab{font-weight:600}
.lab-ouvir{background:#fff;border:1px solid var(--navy);color:var(--navy);border-radius:999px;padding:8px 14px;font:600 14px Inter,sans-serif;cursor:pointer}
.lab-ouvir:hover{background:var(--navy);color:#fff}
.lab-ouvir.mini{padding:3px 10px;font-size:13px}
.lab-glossario div{padding:8px 0;border-bottom:1px solid var(--borda)}
.lab-glossario dt{font-weight:600}
.lab-glossario dd{margin:2px 0 0;color:#334155}
.lab-cheat{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.lab-cheat section{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:12px 16px}
.lab-cheat h2{font-size:18px;margin:0 0 6px}
.lab-portao{background:#FFFBEB;border:1px solid #FDE68A;border-radius:var(--raio);padding:18px;margin:16px 0}
.lab-trilha{list-style:none;padding:0;counter-reset:none}
.lab-trilha li a{display:grid;grid-template-columns:44px 1fr;gap:2px 12px;background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:14px;margin:8px 0;text-decoration:none;color:var(--graphite)}
.lab-trilha-n{grid-row:span 2;width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600}
.lab-trilha li.fechada .lab-trilha-n{background:#94A3B8}
.lab-trilha-t{font-weight:600;color:var(--navy)}
.lab-trilha-r{font-size:14px;color:var(--suave)}
.lab-licao{max-width:820px}
.lab-licao p{font-size:17px}
.lab-ferr-link{background:#fff;border:1px dashed var(--navy);border-radius:10px;padding:10px 14px}
.lab-mini-pratica{background:#E8F5EE;border-radius:10px;padding:10px 14px;margin:14px 0}
.lab-licao-rodape{margin-top:28px;border-top:1px solid var(--borda);padding-top:14px}
.lab-autoria{font-size:13px;color:var(--suave)}
.lab-licao-nav{display:flex;justify-content:space-between;gap:12px;margin-top:10px}
.lab-prereq{font-size:14px;color:var(--suave)}
.lab-resultados li{margin:10px 0}
.lab-relacionados{margin-top:24px}

/* ferramentas */
.lab-controles{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:flex-end;background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:12px 14px;margin:0 0 12px}
.lab-campo{display:flex;flex-direction:column;gap:4px;min-width:120px}
.lab-campo label{font-size:13px;font-weight:600;color:var(--suave)}
.lab-campo select,.lab-campo input,.lab-textarea{border:1px solid var(--borda);border-radius:10px;padding:8px 10px;font:15px Inter,sans-serif;background:#fff;color:var(--graphite);min-height:40px}
.lab-campo-largo{flex:1 1 280px}
.lab-textarea{width:100%;font-family:ui-monospace,Consolas,monospace}
.lab-check{display:flex;gap:6px;align-items:center;font-size:14px;min-height:40px}
.btn.sec{background:#fff;color:var(--navy);border:1px solid var(--navy)}
.lab-resumo{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:14px 16px;margin:0 0 12px}
.lab-resumo h2{margin:0 0 6px}
.lab-resumo p{margin:2px 0;color:#334155}
.lab-info{font-size:15px;color:#334155;min-height:1.6em}
.lab-erro{color:#991B1B;background:#FEF2F2;border:1px solid #FECACA;border-radius:10px;padding:10px 14px}
.lab-campo-chips h3{font-size:16px;margin:10px 0 4px}
.lab-circ-info{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:14px}
.lab-circ-info h2{margin-top:0}
.lab-candidatos li{margin:6px 0}
.lab-grande{font:600 clamp(40px,8vw,64px)/1.1 Lora,Georgia,serif;color:var(--navy);margin:10px 0}
.lab-botao-toque{width:min(100%,360px);height:160px;border-radius:24px;border:0;background:var(--navy);color:#fff;font:600 22px Inter,sans-serif;cursor:pointer;touch-action:manipulation}
.lab-botao-toque:active{background:#C9A227;color:var(--navy)}
.lab-saida{background:#0F172A;color:#E2E8F0;border-radius:12px;padding:14px;white-space:pre-wrap;font:16px ui-monospace,Consolas,monospace;min-height:3em}
.lab-canvas{width:100%;height:auto;background:#fff;border-radius:10px}
.lab-serie{display:flex;align-items:flex-end;gap:4px;overflow-x:auto;padding:8px 0}
.lab-harm{flex:1 0 42px;border:1px solid var(--navy);background:#EEF2FF;border-radius:8px 8px 4px 4px;cursor:pointer;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;font:600 13px Inter,sans-serif;color:var(--navy);padding:4px}
.lab-harm small{font-weight:400}
.lab-grade-passos{overflow-x:auto;background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:10px}
.lab-linha-passos{display:grid;grid-template-columns:78px repeat(16,minmax(28px,1fr));gap:4px;align-items:center;margin:4px 0;min-width:620px}
.lab-rot-faixa{font:600 13px Inter,sans-serif;color:var(--suave)}
.lab-passo{height:32px;border-radius:6px;border:1px solid var(--borda);background:#F8FAFC;cursor:pointer}
.lab-passo.tempo{background:#EEF1F5}
.lab-passo[aria-pressed="true"]{background:var(--navy);border-color:var(--navy)}
.lab-passo.agora{box-shadow:0 0 0 3px var(--gold) inset}
.lab-graus{display:grid;grid-template-columns:repeat(auto-fit,minmax(88px,1fr));gap:8px;margin:8px 0 14px}
.lab-grau{display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 6px;border-radius:12px;cursor:pointer;font-family:Inter,sans-serif;border:2px solid}
.lab-grau strong{font:600 18px Lora,Georgia,serif}
.lab-grau small{font-size:11px}
.lab-lista-pos{columns:2 220px;font-size:14px;color:#334155}
.lab-poli{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:12px;overflow-x:auto}
.lab-poli-linha{display:flex;gap:4px;align-items:center;margin:6px 0}
.lab-poli-linha span{width:24px;font-weight:600}
.lab-poli-linha i{flex:1 0 12px;height:26px;border-radius:5px;background:#EEF1F5}
.lab-poli-linha i.on{background:var(--navy)}
.lab-poli-linha i.agora{box-shadow:0 0 0 3px var(--gold) inset}
.lab-chips-bot{display:flex;flex-wrap:wrap;gap:6px}
.lab-grande-rud{font:500 22px ui-monospace,Consolas,monospace}
.lab-grande-rud mark{background:var(--gold);color:var(--navy);border-radius:4px;padding:0 3px}

/* prática e jogos */
.lab-q-topo{font:600 14px Inter,sans-serif;color:var(--suave);margin-bottom:8px}
.lab-q{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:18px}
.lab-q-enunciado{font:600 20px Lora,Georgia,serif;margin:0 0 10px}
.lab-q-visual{max-width:560px}
.lab-q-visual svg{max-height:220px}
.lab-q-ouvir{margin:8px 0}
.lab-opcoes{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:8px;margin:14px 0}
.lab-opcao{display:flex;gap:10px;align-items:center;text-align:left;background:#fff;border:2px solid var(--borda);border-radius:12px;padding:12px 14px;font:500 16px Inter,sans-serif;cursor:pointer;min-height:52px;color:var(--graphite)}
.lab-opcao:hover:not(:disabled){border-color:var(--navy)}
.lab-opcao.certo{border-color:#0F5D3C;background:#E8F5EE}
.lab-opcao.certo::after{content:' ✓';font-weight:700;color:#0F5D3C}
.lab-opcao.errado{border-color:#991B1B;background:#FEF2F2}
.lab-opcao.errado::after{content:' ✗';font-weight:700;color:#991B1B}
.lab-opcao.era{border-style:dashed;border-color:#0F5D3C}
.lab-tecla{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:6px;background:var(--ice);font:600 12px Inter,sans-serif;color:var(--suave)}
.lab-feedback{border-radius:12px;padding:0 14px}
.lab-feedback.ok{background:#E8F5EE;padding:12px 14px}
.lab-feedback.nao{background:#FEF2F2;padding:12px 14px}
.lab-fb-t{margin:0 0 6px}
.lab-q-ritmo{display:flex;gap:18px;align-items:center;font-size:40px;padding:10px 0}
.lab-q-comp{font:700 26px Lora,Georgia,serif;border-right:2px solid var(--graphite);padding-right:14px}
.lab-q-figs{font-family:'Noto Music',serif;letter-spacing:.1em}
.lab-resumo-final h2{margin-top:0}
.lab-progresso{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:12px 16px;margin:12px 0}
.lab-dominio li{margin:4px 0}
.dom-dominado{color:#0F5D3C}
.lab-barras{display:grid;gap:6px;margin:10px 0}
.lab-barra{display:grid;grid-template-columns:120px 1fr 110px;gap:8px;align-items:center;font-size:14px}
.lab-barra-fundo{background:#EEF1F5;border-radius:6px;height:14px;display:block}
.lab-barra-cheia{background:var(--navy);display:block;height:14px;border-radius:6px}
.lab-previa-q{border-top:1px solid var(--borda);padding:10px 0}
.lab-form fieldset{border:1px solid var(--borda);border-radius:12px;padding:10px 14px;margin:10px 0;display:flex;flex-wrap:wrap;gap:4px 16px}

/* som */
.lab-som{position:fixed;left:50%;bottom:14px;transform:translateX(-50%);z-index:50;background:var(--navy);color:#fff;border-radius:999px;padding:8px 14px;display:flex;gap:14px;align-items:center;box-shadow:0 10px 30px rgba(0,0,0,.25);font-size:14px}
.lab-som[hidden]{display:none}
.lab-parar{background:#fff;color:var(--navy);border:0;border-radius:999px;padding:6px 14px;font:600 14px Inter,sans-serif;cursor:pointer}
.lab-aviso{position:fixed;left:16px;right:16px;bottom:70px;margin:0 auto;max-width:560px;background:#1F2933;color:#fff;border-radius:12px;padding:12px 16px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:60}
.lab-aviso.on{opacity:1}
.lab-aviso.erro{background:#991B1B}

/* SVG do núcleo */
.lab-svg text{font-family:Inter,system-ui,sans-serif}
.lab-piano .k-b{fill:#fff;stroke:#1F2933;stroke-width:1}
.lab-piano .k-p{fill:#1F2933;stroke:#1F2933}
.lab-piano .k{cursor:default}
.lab-piano[role="group"] .k{cursor:pointer}
.lab-piano .k-b.on{fill:#DCE3F0}
.lab-piano .k-b.on-raiz{fill:#F4E3A1}
.lab-piano .k-p.on{fill:#3B5B95}
.lab-piano .k-p.on-raiz{fill:#A07F12}
.lab-piano .k:focus{outline:none;stroke:#C9A227;stroke-width:3}
.lab-piano .k-t{font-size:11px;fill:#1F2933;font-weight:600;pointer-events:none}
.lab-piano .k-tp{fill:#fff;font-size:9.5px}
.lab-piano .k-marca{fill:#1B2A4A;pointer-events:none}
.lab-pauta .p-linha,.lab-pauta .p-sup{stroke:#1F2933;stroke-width:1}
.lab-pauta .p-traco{fill:none;stroke:#1F2933;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.lab-pauta .p-traco.grosso{stroke-width:3}
.lab-pauta .p-traco.fino{stroke-width:1.3}
.lab-pauta .p-cheio{fill:#1F2933}
.lab-pauta .p-haste,.lab-pauta .p-barra{stroke:#1F2933;stroke-width:1.4}
.lab-pauta .p-formula{font:700 19px Lora,Georgia,serif;fill:#1F2933}
.lab-pauta .p-falta{fill:#FEF3C7;stroke:#C9A227;stroke-dasharray:4 3}
.lab-pauta .p-falta-t{font:700 20px Inter,sans-serif;fill:#8A6D12}
.lab-fig-mini{display:inline-block!important;vertical-align:middle}
.lab-pauta .p-nota{fill:none;stroke:#1F2933;stroke-width:2.2}
.lab-pauta .p-nota.on-raiz{fill:#C9A227}
.lab-pauta .p-rot{font-size:11px;fill:#5B6478}
.lab-pauta .p-marca{fill:#1B2A4A}
.lab-braco .b-corda{stroke:#6B7280}
.lab-braco .b-traste{stroke:#9CA3AF;stroke-width:2}
.lab-braco .b-pestana{stroke:#1F2933;stroke-width:6}
.lab-braco .b-inlay{fill:#E5E7EB}
.lab-braco .b-num{font-size:11px;fill:#5B6478}
.lab-braco .b-nome{font-size:12px;fill:#1F2933;font-weight:600}
.lab-braco .b-pt{fill:#1B2A4A}
.lab-braco .b-pt.on-raiz{fill:#C9A227;stroke:#1B2A4A;stroke-width:2}
.lab-braco .b-rot{font-size:9.5px;fill:#fff;font-weight:700;pointer-events:none}
.lab-braco .b-pt.on-raiz + .b-rot{fill:#1B2A4A}
.lab-braco .b-cel{fill:transparent;cursor:pointer}
.lab-braco .b-cel:hover{fill:rgba(201,162,39,.18)}
.lab-circulo .c-aro{fill:none;stroke:#E4E7EC;stroke-width:2}
.lab-circulo .c-poli{fill:rgba(27,42,74,.12);stroke:#1B2A4A;stroke-width:2}
.lab-circulo .c-no circle{fill:#fff;stroke:#1B2A4A;stroke-width:1.5}
.lab-circulo .c-no text{font-size:12px;font-weight:600;fill:#1F2933;pointer-events:none}
.lab-circulo .c-no .c-sub{font-size:9px;font-weight:400;fill:#5B6478}
.lab-circulo .c-int text{font-size:11px}
.lab-circulo .c-no.on-ativo circle{fill:#C9A227;stroke-width:3}
.lab-circulo .c-no.on-vizinho circle{fill:#F4E3A1;stroke-dasharray:3 2}
.lab-circulo .c-no.on-nota circle{fill:#DCE3F0}
.lab-circulo .c-no.on-raiz circle{fill:#C9A227}
.lab-circulo[role="group"] .c-no{cursor:pointer}
.lab-circulo .c-no:focus{outline:none}
.lab-circulo .c-no:focus circle{stroke:#C9A227;stroke-width:4}
.lab-circulo .c-centro{font:600 14px Lora,Georgia,serif;fill:#5B6478}

@media (max-width:620px){
  .lab{padding:12px 16px 40px}
  .lab-busca-mini{display:none}
  .lab-sub .wrap{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;padding:6px 16px}
  .lab-sub .wrap::-webkit-scrollbar{display:none}
  .lab-linha-passos{grid-template-columns:62px repeat(16,minmax(26px,1fr))}
  .lab-som{left:16px;right:16px;transform:none;justify-content:space-between}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
@media (forced-colors:active){.lab-passo[aria-pressed="true"],.lab-opcao.certo,.lab-opcao.errado{outline:3px solid CanvasText}}

/* ---- 2ª entrega ---- */
.lab-comecar{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:16px 18px;margin:18px 0}
.lab-comecar h2{margin-top:0}
.lab-recomendacao h3{margin:4px 0}
.lab-prog-acordes{font:600 20px Lora,Georgia,serif;margin:4px 0}
.lab-prog-acordes small{font:500 12px Inter,sans-serif;color:var(--suave)}
.lab-agulha{position:relative;height:56px;border:1px solid var(--borda);border-radius:12px;background:linear-gradient(90deg,#FDF2F2,#F2F7F2 50%,#FDF2F2);margin:10px 0;overflow:hidden}
.lab-agulha-ok{position:absolute;left:45%;width:10%;top:0;bottom:0;background:rgba(21,154,120,.18)}
.lab-agulha-ponta{position:absolute;top:8px;bottom:8px;width:6px;margin-left:-3px;border-radius:3px;background:var(--navy);transition:left .08s linear}
.lab-cordas{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.lab-corda{background:#fff;border:2px solid var(--borda);border-radius:12px;padding:10px 14px;font:500 16px Inter,sans-serif;cursor:pointer;color:var(--graphite)}
.lab-corda.on{border-color:var(--gold);background:#FEF3C7}
.lab-corda small{color:var(--suave);font-size:12px}
.lab-pulsos{display:flex;gap:8px;margin:10px 0}
.lab-pulsos i{width:34px;height:34px;border-radius:50%;background:#E7EAEF;display:block}
.lab-pulsos i.on{background:var(--navy)}
.lab-pulsos i.forte{background:var(--gold)}
.lab-xilofone{display:flex;align-items:flex-end;gap:6px;padding:16px;background:#fff;border:1px solid var(--borda);border-radius:var(--raio);overflow-x:auto}
.lab-lamina{flex:1 0 34px;border:0;border-radius:8px;cursor:pointer;display:flex;align-items:flex-end;justify-content:center;padding-bottom:8px;box-shadow:inset 0 -4px 0 rgba(0,0,0,.15);touch-action:manipulation}
.lab-lamina span{font:700 13px Inter,sans-serif;color:#1F2933;background:rgba(255,255,255,.8);border-radius:6px;padding:1px 4px}
.lab-lamina:active{transform:translateY(2px)}
.lab-iso .iso polygon{fill:#fff;stroke:#1B2A4A;stroke-width:1}
.lab-iso .iso.do polygon{fill:#F1F5F9}
.lab-iso .iso.on polygon{fill:#DCE3F0}
.lab-iso .iso.raiz polygon{fill:#F4E3A1;stroke-width:2.5}
.lab-iso .iso text{font:600 10px Inter,sans-serif;fill:#1F2933;pointer-events:none}
.lab-iso .iso{cursor:pointer}
.lab-iso .iso:focus{outline:none}
.lab-iso .iso:focus polygon{stroke:#C9A227;stroke-width:3}
.lab-grau-mudou{background:#FEF3C7;font-weight:700}
.lab-grau-mudou small{color:#8A6D12}
.lab-matriz td{text-align:center;padding:4px 6px}
.lab-matriz th{text-align:center}
/* impressão */
.lab-imp-questoes > li{margin:0 0 22px;break-inside:avoid}
.lab-imp-opcoes li{margin:3px 0}
.lab-imp-gabarito{break-before:page}
@media print{
  header.topo,.lab-sub,footer,.lab-migalhas,.lab-som,.lab-nao-imprime,.lab-aviso{display:none!important}
  body{background:#fff}
  .lab{padding:0}
  .lab-fig,.lab-svgbox{border:0}
}
/* modo aula */
.lab-aula header.topo,.lab-aula .lab-sub,.lab-aula footer{display:none}
.lab-aula .wrap{max-width:none}
.lab-aula .lab{font-size:22px;padding:18px 32px}
.lab-aula .lab h1{font-size:44px}
.lab-aula .lab-svgbox svg,.lab-aula .lab-fig svg{width:100%;max-width:none}
.lab-aula .lab-fig-circ svg{max-width:640px}
.lab-aula .lab-opcao{font-size:24px;min-height:70px}
.lab-aula .lab-q-enunciado{font-size:32px}
.lab-link-botao{background:none;border:0;padding:0;color:var(--navy);font:600 15px Inter,sans-serif;text-decoration:underline;cursor:pointer;text-align:left}
.lab-rud-tab code{font-size:14px;white-space:nowrap}
.lab-rolagem-topo{overflow-x:auto;overflow-y:hidden;height:16px;margin:6px 0 0}
.lab-rolagem-topo > div{height:1px}
.lab-rolagem-topo[hidden]{display:none}
.lab-atlas th[scope="row"],.lab-atlas thead th:first-child{position:sticky;left:0;z-index:1;background:#fff;box-shadow:2px 0 0 var(--borda)}
.lab-atlas thead th:first-child{background:var(--ice)}

/* ---- Tutor de braço ---- */
.lab-tutor-info p{margin:4px 0 8px;color:var(--suave)}
.lab-tutor-info strong{color:var(--graphite)}
.lab-tutor-braco .lab-svgbox{overflow-x:auto}
.lab-braco .b-pt.on-agora{fill:#E0A800;stroke:#1B2A4A;stroke-width:2.5;transform-box:fill-box;transform-origin:center;animation:tb-pulso .35s ease-out}
.lab-braco .b-pt.on-certo{fill:#1E8E5A}
.lab-braco .b-pt.on-errado{fill:#C0392B}
.lab-braco .b-pt.on-agora + .b-rot{fill:#1B2A4A}
@keyframes tb-pulso{from{transform:scale(1.45)}to{transform:scale(1)}}
@media (prefers-reduced-motion:reduce){.lab-braco .b-pt.on-agora{animation:none}}
.lab-tutor-seq{display:flex;gap:6px;list-style:none;padding:4px 0 10px;margin:0 0 8px;overflow-x:auto;scroll-behavior:smooth}
.lab-tutor-passo{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;min-width:52px;padding:6px 8px;border:1px solid var(--borda);border-radius:10px;background:#fff;font-size:14px}
.lab-tutor-passo small{font-size:11px;color:var(--suave)}
.lab-tutor-passo.agora{border-color:#E0A800;background:#FFF6D6;box-shadow:0 0 0 2px #E0A800 inset}
.lab-tutor-passo.certo{border-color:#1E8E5A;background:#E6F5EC}
.lab-tutor-passo.errado{border-color:#C0392B;background:#FBE9E7}
.lab-tutor-acoes{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 12px}
.lab-tutor-ops{display:flex;flex-wrap:wrap;gap:6px 16px;width:100%;margin-top:4px}
.lab-tutor-op{font-size:14px;color:var(--suave);display:flex;align-items:center;gap:6px;cursor:pointer}
.lab-tutor-painel{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:12px 16px;margin:0 0 14px}
.lab-tutor-cab{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.lab-tutor-avatar{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--ice);font-size:18px}
.lab-tutor-falas{margin:4px 0;padding-left:20px}
.lab-tutor-falas li{margin:3px 0}
.lab-tutor-nums{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:8px;margin:6px 0 10px}
.lab-tutor-num{background:var(--ice);border-radius:10px;padding:8px 10px;display:flex;flex-direction:column}
.lab-tutor-num strong{font-size:20px}
.lab-tutor-num small{color:var(--suave);font-size:12px}
.lab-tutor-rodadas{padding-left:20px;font-size:14px}
.lab-tutor-ia{background:#fff;border:1px dashed var(--borda);border-radius:var(--raio);padding:12px 16px;margin:0 0 14px}
.lab-tutor-ia[hidden]{display:none}
.lab-tutor-ia textarea{width:100%;box-sizing:border-box}
.lab-tutor-ia-saida{margin-top:8px}
.lab-campo-curto{min-width:80px;max-width:100px}
.lab-campo-check{justify-content:flex-end}
.lab-campo-check label{display:flex;align-items:center;gap:6px;min-height:40px}
.lab-destaque-tutor{margin:0 0 18px}
.lab-destaque-tutor a{display:block;background:var(--ice);border:1px solid var(--borda);border-radius:var(--raio);padding:12px 16px;text-decoration:none;color:var(--graphite)}
.lab-tutor-acoes .btn[disabled]{opacity:.5;cursor:default}
.lab-tutor-acoes .btn-mic{background:#1E8E5A}
.lab-tutor-acoes [hidden]{display:none}

/* ---- Transcrever música ---- */
.lab-tr-opcoes{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin:0 0 12px}
.lab-tr-cartao{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:14px 16px;display:flex;flex-direction:column;gap:8px}
.lab-tr-zona{display:flex;flex-direction:column;gap:4px;align-items:center;justify-content:center;text-align:center;border:2px dashed var(--borda);border-radius:var(--raio);padding:22px 12px;cursor:pointer;min-height:110px}
.lab-tr-zona.sobre,.lab-tr-zona:hover{border-color:var(--navy);background:var(--ice)}
.lab-tr-zona span{font-size:14px;color:var(--suave)}
.lab-tr-bts{display:flex;flex-wrap:wrap;gap:8px}
.lab-tr-prog{display:flex;align-items:center;gap:10px;margin:0 0 12px}
.lab-tr-prog[hidden],.lab-tr-vivo[hidden]{display:none}
.lab-tr-prog progress{flex:1;height:12px}
.lab-tr-vivo{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:14px 16px;margin:0 0 14px}
.lab-tr-vivo-cab{display:flex;flex-wrap:wrap;align-items:center;gap:10px;justify-content:space-between}
.lab-tr-vivo-grade{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0}
.lab-tr-vivo-grade > div{background:var(--ice);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column}
.lab-tr-agora{font:700 44px Lora,serif;color:var(--navy)}
.lab-tr-agora-nota{font:700 28px Inter,sans-serif;color:var(--graphite)}
.lab-tr-linha{font:600 16px Inter,sans-serif;word-break:break-word}
.lab-tr-res .lab-tutor-num strong{font-size:18px;overflow-wrap:anywhere}
.lab-tr-cifra{list-style:none;padding:0;margin:0 0 10px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
.lab-tr-comp{position:relative;background:#fff;border:1px solid var(--borda);border-radius:10px;padding:16px 6px 8px;display:flex;flex-wrap:wrap;gap:4px;justify-content:center;min-height:52px}
.lab-tr-comp small{position:absolute;top:2px;left:6px;font-size:10px;color:var(--suave)}
.lab-tr-comp.agora{border-color:#E0A800;background:#FFF6D6;box-shadow:0 0 0 2px #E0A800 inset}
.lab-tr-ac{background:none;border:0;font:700 18px Inter,sans-serif;color:var(--navy);cursor:pointer;padding:2px 4px;border-radius:6px}
.lab-tr-ac:hover,.lab-tr-ac:focus-visible{background:var(--ice)}
.lab-tr-pausa{color:var(--suave)}
.lab-tr-rolo{overflow-x:auto;background:#fff;border:1px solid var(--borda);border-radius:10px;padding:4px}
.lab-tr-rolo svg{max-width:none}
.lab-tr-rolo .tr-bar{stroke:#DCE3F0;stroke-width:1}
.lab-tr-rolo .tr-num{font-size:9px;fill:#6B7280}
.lab-tr-rolo .tr-nota{fill:#1B2A4A}
.lab-tr-notas{font-size:14px;color:var(--suave);word-break:break-word}
.lab-tr-res .lab-tutor-acoes a.btn{text-decoration:none}
@media (max-width:560px){.lab-tr-cifra{grid-template-columns:repeat(2,minmax(0,1fr))}.lab-tr-agora{font-size:34px}}

/* ---- Separar trilhas ---- */
.lab-sep-mixer{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:14px 16px;margin:0 0 14px}
.lab-sep-mixer[hidden]{display:none}
.lab-sep-transporte{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:0 0 12px}
.lab-sep-transporte input[type=range]{flex:1 1 200px;min-width:0}
.lab-sep-tempo{font:600 14px Inter,sans-serif;color:var(--suave);min-width:90px;text-align:right}
.lab-sep-receitas{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:0 0 12px}
.lab-sep-linhas{display:flex;flex-direction:column;gap:6px;margin:0 0 12px}
.lab-sep-linha{display:grid;grid-template-columns:minmax(110px,1.2fr) auto auto minmax(80px,2fr) auto;gap:8px;align-items:center;padding:8px 10px;border:1px solid var(--borda);border-radius:10px}
.lab-sep-linha.calada{opacity:.55;background:var(--ice)}
.lab-sep-nome{font:600 15px Inter,sans-serif}
.lab-sep-bt{border:1px solid var(--borda);background:#fff;border-radius:999px;padding:6px 10px;font:600 13px Inter,sans-serif;cursor:pointer;color:var(--navy);min-height:36px}
.lab-sep-bt.dentro{background:#E6F5EC;border-color:#1E8E5A;color:#14603C}
.lab-sep-bt.fora{background:#FBE9E7;border-color:#C0392B;color:#8E2A20}
.lab-sep-bt.solo{background:#FFF6D6;border-color:#E0A800}
@media (max-width:560px){.lab-sep-linha{grid-template-columns:1fr auto auto auto}.lab-sep-linha input[type=range]{grid-column:1 / -1;order:5}}

/* ---- Separar trilhas: etapas ---- */
.lab-sep-passos{list-style:none;padding:0;margin:0 0 12px;display:flex;flex-wrap:wrap;gap:6px}
.lab-sep-passo{display:flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--borda);border-radius:999px;background:#fff;font:600 14px Inter,sans-serif;color:var(--suave)}
.lab-sep-passo span{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--ice);font-size:12px}
.lab-sep-passo.atual{border-color:var(--navy);color:var(--navy)}
.lab-sep-passo.atual span{background:var(--navy);color:#fff}
.lab-sep-passo.feito{color:#14603C;border-color:#1E8E5A}
.lab-sep-passo.feito span{background:#1E8E5A;color:#fff}
.lab-sep-etapa{background:#fff;border:1px solid var(--borda);border-radius:var(--raio);padding:14px 16px;margin:0 0 14px}
.lab-sep-etapa h2{margin-top:0}
.lab-sep-info{margin:8px 0}
.lab-sep-fatos{padding-left:20px;margin:6px 0 10px}
.lab-sep-fatos li{margin:3px 0}