/* Obrena — Blog: hub (/blog/) e artigos (/blog/<slug>/). Só o que é do blog; o compartilhado das internas vive em interna.css. */

/* ===== Hub · abertura ===== */
.bl-hero{padding:64px 0 42px;background:var(--bg)}
.bl-hero-inner{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);align-items:start;gap:56px}
.bl-hero h1{margin:0;max-width:14ch;font-size:clamp(38px,4.4vw,62px);line-height:1.02;letter-spacing:-.04em}
.bl-hero h1 span{color:var(--accent)}
.bl-hero-lead{max-width:52ch;margin:22px 0 0;color:#4c515b;font-size:17px;line-height:1.7}

/* Caminhos de leitura — índice dos núcleos, sem depender de JS */
.bl-caminhos{padding-top:6px}
.bl-caminhos-titulo{margin:0;padding-bottom:10px;color:#666c77;font-size:11.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.bl-caminhos-lista{margin:0;padding:0;list-style:none;border-top:1.5px solid var(--ink)}
.bl-caminhos-lista li{border-bottom:1px solid var(--line)}
.bl-caminhos-lista a{display:grid;grid-template-columns:34px minmax(0,1fr);align-items:baseline;gap:12px;padding:13px 12px;margin:0 -12px;border-radius:12px;color:var(--ink);text-decoration:none;transition:background .2s ease}
.bl-caminhos-lista a:hover{background:#fff}
.bl-caminhos-lista a:focus-visible{outline:3px solid rgba(31,59,255,.35);outline-offset:2px}
.bl-caminho-num{font-family:var(--display);font-size:12.5px;font-weight:800;letter-spacing:.08em;color:#a3a8b5;font-variant-numeric:tabular-nums}
.bl-caminho-texto{font-size:15.5px;line-height:1.5;color:#4c515b}
.bl-caminho-texto b{color:var(--ink);font-weight:750}
.bl-caminhos-lista a:hover .bl-caminho-texto b{color:var(--accent-text)}
.bl-caminhos-lista a:hover .bl-caminho-num{color:var(--accent)}

/* ===== Hub · destaque ===== */
.bl-capa{padding:26px 0 8px;background:var(--bg)}
.bl-capa-inner{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);align-items:center;gap:52px;padding-top:44px;border-top:1.5px solid var(--ink)}
.bl-capa-figura{margin:0}
.bl-capa-figura img{display:block;width:100%;height:auto;aspect-ratio:8/5;object-fit:cover;object-position:50% 0;border-radius:22px;background:#eceef4;box-shadow:0 40px 80px -50px rgba(14,18,32,.7)}
.bl-capa-figura figcaption{margin-top:13px;color:#666c77;font-size:13.5px;line-height:1.55}
.bl-capa-rotulo{margin:0 0 14px;color:var(--accent-text);font-size:11.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.bl-capa-titulo{margin:0;font-size:clamp(28px,2.9vw,40px);line-height:1.08;letter-spacing:-.035em}
.bl-capa-titulo a{color:var(--ink);text-decoration:none}
.bl-capa-titulo a:hover{color:var(--accent-text)}
.bl-capa-titulo a:focus-visible{outline:3px solid rgba(31,59,255,.35);outline-offset:4px;border-radius:6px}
.bl-capa-resumo{margin:16px 0 0;max-width:56ch;color:#4c515b;font-size:16.5px;line-height:1.65}
.bl-capa-dentro{margin:20px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
.bl-capa-dentro li{position:relative;padding:9px 0 9px 26px;border-bottom:1px solid var(--line);color:var(--ink);font-size:14.5px;font-weight:650;line-height:1.45}
.bl-capa-dentro li::before{content:"";position:absolute;left:4px;top:16px;width:9px;height:5px;border-left:2.5px solid var(--accent);border-bottom:2.5px solid var(--accent);transform:rotate(-45deg)}
.bl-capa-meta{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;margin:18px 0 0;color:#666c77;font-size:13px;font-weight:600}
.bl-capa-tag{padding:3px 10px;border-radius:999px;background:#eef1ff;color:var(--accent-text);font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}

/* ===== Hub · biblioteca ===== */
.bl-biblioteca{padding:64px 0 96px;background:var(--bg)}
.bl-biblioteca-cabeca{max-width:720px}
.bl-biblioteca-cabeca h2{margin:0;font-size:clamp(30px,3vw,44px);line-height:1.05;letter-spacing:-.038em}
.bl-biblioteca-cabeca h2 span{color:var(--accent)}
.bl-biblioteca-cabeca p{margin:16px 0 0;color:#4c515b;font-size:16.5px;line-height:1.65}

.bl-ferramentas{margin-top:30px}
.bl-ferramentas-form{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px}
.bl-campo{display:grid;gap:7px}
.bl-campo-busca{flex:1 1 300px;min-width:0}
.bl-campo-filtro{flex:0 1 260px;min-width:0}
.bl-campo label{color:#343a49;font-size:13px;font-weight:750}
.bl-campo input,.bl-campo select{width:100%;height:50px;padding:0 14px;border:1.5px solid #d8dce7;border-radius:13px;background:#fff;color:var(--ink);font-family:inherit;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease}
.bl-campo input::placeholder{color:#7a8190}
.bl-campo input:focus-visible,.bl-campo select:focus-visible{outline:3px solid rgba(31,59,255,.28);outline-offset:2px;border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.bl-limpar{height:50px;padding:0 20px;border:1.5px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);font-family:inherit;font-size:14.5px;font-weight:750;cursor:pointer;transition:border-color .2s ease,color .2s ease}
.bl-limpar:hover{border-color:var(--accent);color:var(--accent-text)}
.bl-limpar:focus-visible{outline:3px solid rgba(31,59,255,.35);outline-offset:2px}
.bl-status{margin:14px 0 0;min-height:20px;color:#5b6072;font-size:14px;font-weight:600}
.bl-vazio{margin:34px 0 0;padding:22px 24px;border:1.5px solid var(--line);border-left:3px solid var(--accent);border-radius:0 16px 16px 0;background:#fff;color:var(--ink);font-size:16px;line-height:1.6}
.bl-vazio a{color:var(--accent-text);font-weight:750}

.bl-catalogo{margin-top:38px}
.bl-nucleo{display:grid;grid-template-columns:minmax(0,264px) minmax(0,1fr);align-items:start;gap:22px 56px;padding:44px 0 26px;border-top:1.5px solid var(--ink);scroll-margin-top:calc(var(--header) + 24px)}
.bl-nucleo>h2{position:sticky;top:calc(var(--header) + 30px);margin:0;font-size:clamp(23px,2.2vw,31px);line-height:1.08;letter-spacing:-.035em;color:var(--ink)}
.bl-artigos{display:grid;gap:0;min-width:0}
.bl-item{border-bottom:1px solid var(--line)}
.bl-item>a{display:grid;grid-template-columns:42px minmax(0,1fr);column-gap:16px;margin:0 -14px;padding:20px 14px;border-radius:14px;color:inherit;text-decoration:none;transition:background .2s ease}
.bl-item>a:hover{background:#fff}
.bl-item>a:focus-visible{outline:3px solid rgba(31,59,255,.35);outline-offset:2px}
.bl-item-num{grid-row:1/span 3;padding-top:5px;color:#a3a8b5;font-family:var(--display);font-size:13px;font-weight:800;letter-spacing:.06em;font-variant-numeric:tabular-nums}
.bl-item h3{margin:0;font-size:clamp(19px,1.75vw,23px);line-height:1.2;letter-spacing:-.026em;color:var(--ink)}
.bl-item>a:hover h3{color:var(--accent-text)}
.bl-item p{margin:7px 0 0;max-width:62ch;color:#4c515b;font-size:15.5px;line-height:1.6}
.bl-item-meta{margin-top:11px;color:var(--accent-text);font-size:13px;font-weight:750}

/* Alternância de estado sem JS: os controles chegam ocultos e o script os revela. */
[data-blog-tools][hidden],.bl-item[hidden],.bl-nucleo[hidden],.bl-vazio[hidden],.bl-limpar[hidden]{display:none!important}

/* ===== Hub · fecho ===== */
.bl-fecho{padding:80px 0 90px;background:var(--ink);color:#fff}
.bl-fecho-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.bl-fecho .eyebrow{color:rgba(255,255,255,.78)}
.bl-fecho .eyebrow::before{background:var(--accent-2)}
.bl-fecho h2{margin:0;font-size:clamp(30px,3vw,42px);line-height:1.06;letter-spacing:-.035em;color:#fff}
.bl-fecho p:last-child{max-width:520px;margin:12px 0 0;color:rgba(255,255,255,.82);font-size:16px;line-height:1.65}
.bl-fecho .button{background:#fff;color:var(--ink);border-color:#fff}
.bl-fecho .button:hover{background:var(--accent-2);border-color:var(--accent-2)}

/* ===== Cartões (rodapé de artigo e listas auxiliares) ===== */
.bl-meta{display:flex;flex-wrap:wrap;gap:6px 14px;margin:0;color:#666c77;font-size:13px;font-weight:600}
.bl-tag{padding:3px 10px;border-radius:999px;background:#eef1ff;color:var(--accent-text);font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.bl-titulo{display:block;font-family:var(--display);font-weight:800;letter-spacing:-.03em;line-height:1.12;color:var(--ink)}
.bl-resumo{display:block;color:#4c515b;font-size:15.5px;line-height:1.65}
.bl-ler{color:var(--accent-text);font-weight:750}
.bl-grade{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding-top:24px}
.bl-card{display:grid;gap:12px;align-content:start;text-decoration:none;color:inherit}
.bl-card-midia{display:block;overflow:hidden;border-radius:18px;background:#eceef4}
.bl-card-midia img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.bl-card:hover .bl-card-midia img{transform:scale(1.03)}
.bl-card .bl-titulo{font-size:clamp(22px,2vw,27px)}
.bl-card:hover .bl-titulo{color:var(--accent-text)}

/* ===== Artigo ===== */
.ar-cabeca{padding:56px 0 0;background:var(--bg)}
.ar-cabeca-inner{max-width:900px;margin:auto}
.ar-migalha{display:flex;gap:10px;margin-bottom:22px;color:#666c77;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.ar-migalha a{color:var(--accent-text);text-decoration:none}
.ar-migalha a:hover{text-decoration:underline}
.ar-cabeca h1{margin:0;font-size:clamp(34px,4vw,56px);line-height:1.05;letter-spacing:-.04em}
.ar-cabeca h1 span{color:var(--accent)}
.ar-lead{max-width:760px;margin:22px 0 0;color:#3f4553;font-size:19px;line-height:1.6}
.ar-cabeca .bl-meta{margin-top:22px}
.ar-capa{max-width:1120px;margin:40px auto -80px;padding:0 26px}
/* Sem aspect-ratio fixo: a capa respeita a proporção do arquivo (a captura de celular é retrato) e só limita a altura. */
/* contain, nunca cover: capa pode ser marca ou captura em retrato, e corte deformaria a peça. */
.ar-capa img{display:block;width:100%;height:auto;max-height:clamp(300px,58vh,620px);object-fit:contain;object-position:50% 50%;border-radius:24px;background:#f2f3f7;box-shadow:0 40px 80px -50px rgba(14,18,32,.7)}
.ar-capa figcaption{max-width:760px;margin:14px auto 0;color:#666c77;font-size:13.5px;line-height:1.55;text-align:center}
.ar-corpo{max-width:none;padding:130px 26px 40px;background:#fff}
.ar-corpo>h2{max-width:700px;margin:56px auto 0;padding-top:14px;font-size:clamp(26px,2.6vw,33px);line-height:1.14;letter-spacing:-.032em;scroll-margin-top:calc(var(--header) + 20px)}
.ar-corpo>h2::before{content:"";display:block;width:52px;height:3px;margin-bottom:18px;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.ar-corpo>h3{max-width:700px;margin:34px auto 0;color:var(--accent-text);font-size:20px;line-height:1.22;letter-spacing:-.02em}
.ar-corpo>p:first-child{font-size:19px;color:var(--ink)}
.ar-corpo code,.ar-corpo kbd,.ar-corpo samp{padding:.12em .38em;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink);font-family:ui-monospace,"Cascadia Mono","SFMono-Regular",Menlo,Consolas,monospace;font-size:.92em;line-height:1.5;overflow-wrap:anywhere;word-break:break-word}
.ar-corpo pre{max-width:700px;margin:22px auto 0;padding:18px 20px;overflow-x:auto;border:1.5px solid var(--line);border-radius:14px;background:var(--bg)}
.ar-corpo pre code{padding:0;border:0;background:none;font-size:14.5px;white-space:pre-wrap;overflow-wrap:anywhere}
.ar-rodape{padding:40px 0 100px;background:#fff}
.ar-rodape .section-inner{max-width:900px}
.ar-rodape-titulo{margin:0 0 6px;color:#666c77;font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.ar-rodape .bl-ler{display:inline-block;margin-top:24px;text-decoration:none}
.ar-rodape .bl-ler:hover{color:var(--accent)}

/* Sumário do artigo */
.ar-sumario{max-width:700px;margin:6px auto 0;padding:22px 24px 24px;border:1.5px solid var(--line);border-left:3px solid var(--accent);border-radius:0 16px 16px 0;background:var(--bg)}
.ar-corpo .ar-sumario>p:first-child,.ar-sumario-titulo{margin:0 0 12px;color:#666c77;font-size:12px;font-weight:800;letter-spacing:.16em;line-height:1.4;text-transform:uppercase}
.ar-sumario ol{margin:0;padding-left:20px;color:#8a90a0;font-family:var(--display);font-size:14px;font-weight:700}
.ar-sumario li{margin:0;padding:5px 0}
.ar-sumario a{display:inline-block;padding:2px 0;color:var(--ink);font-family:Inter,"Segoe UI",sans-serif;font-size:15.5px;font-weight:600;line-height:1.45;text-decoration:none;border-bottom:1.5px solid transparent}
.ar-sumario a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.ar-sumario a:focus-visible{outline:3px solid rgba(31,59,255,.35);outline-offset:2px}

/* Figura dentro do corpo */
.ar-corpo>.ar-figura{max-width:940px;margin:46px auto 44px}
.ar-figura img{display:block;width:100%;height:auto;max-height:clamp(280px,52vh,560px);object-fit:contain;object-position:50% 50%;border-radius:20px;background:#f2f3f7;box-shadow:0 34px 60px -44px rgba(14,18,32,.8)}
.ar-figura figcaption{max-width:660px;margin:14px auto 0;color:#666c77;font-size:14px;line-height:1.6;text-align:center}

/* Fontes lidas */
.ar-corpo>.ar-fontes{max-width:700px;margin:52px auto 0;padding:24px 26px 26px;border:1.5px solid var(--line);border-radius:16px;background:var(--bg)}
.ar-corpo .ar-fontes h2,.ar-fontes-titulo{margin:0 0 6px;padding:0;max-width:none;color:#666c77;font-family:var(--display);font-size:12px;font-weight:800;letter-spacing:.16em;line-height:1.4;text-transform:uppercase;scroll-margin-top:calc(var(--header) + 20px)}
.ar-corpo .ar-fontes h2::before{display:none}
.ar-fontes ol,.ar-fontes ul{margin:0;padding:0;list-style:none}
.ar-fontes li{padding:10px 0;border-top:1px solid var(--line)}
.ar-fontes li:first-child{border-top:0}
.ar-fontes a{color:var(--ink);font-size:15.5px;font-weight:650;line-height:1.45;text-decoration:none;border-bottom:1.5px solid rgba(31,59,255,.32);overflow-wrap:anywhere}
.ar-fontes a:hover{color:var(--accent-text);border-bottom-color:var(--accent)}
.ar-fontes span{display:block;margin-top:3px;color:#666c77;font-size:13px;line-height:1.5;overflow-wrap:anywhere}
.ar-corpo .ar-fontes>p:last-child{margin:14px 0 0;color:#666c77;font-size:14px;line-height:1.6}

/* Leitura relacionada */
.ar-relacionados{margin:14px 0 0;padding:0;list-style:none;border-top:1.5px solid var(--ink)}
.ar-relacionados li{padding:18px 0 16px;border-bottom:1px solid var(--line);list-style:none}
.ar-relacionados li::marker{content:""}
.ar-relacionados li>a,.ar-relacionados strong{display:block;font-family:var(--display);font-size:clamp(19px,1.7vw,22px);font-weight:800;line-height:1.2;letter-spacing:-.026em;color:var(--ink);text-decoration:none}
.ar-relacionados li>a:hover{color:var(--accent-text)}
.ar-relacionados li>a:focus-visible{outline:3px solid rgba(31,59,255,.35);outline-offset:3px;border-radius:6px}
.ar-relacionados p,.ar-relacionados em{margin:7px 0 0;max-width:70ch;font-style:normal;color:#4c515b;font-size:15px;line-height:1.6}

/* ===== Larguras ===== */
@media (max-width:1080px){
  .bl-hero-inner{gap:40px}
  .bl-capa-inner{gap:36px}
  .bl-nucleo{grid-template-columns:minmax(0,210px) minmax(0,1fr);gap:20px 36px}
}
@media (max-width:960px){
  .bl-hero{padding:48px 0 34px}
  .bl-hero-inner{grid-template-columns:1fr;gap:34px}
  .bl-hero h1{max-width:none}
  .bl-capa-inner{grid-template-columns:1fr;gap:26px}
  .bl-biblioteca{padding:52px 0 76px}
  .bl-nucleo{grid-template-columns:1fr;gap:6px;padding-top:36px}
  .bl-nucleo>h2{position:static}
  .bl-grade{grid-template-columns:1fr;gap:34px}
  .ar-capa{margin-bottom:-60px}
  .ar-corpo{padding-top:100px}
}
@media (max-width:700px){
  .bl-hero h1{font-size:clamp(31px,8.6vw,42px)}
  .bl-hero-lead{font-size:15.5px}
  .bl-caminho-texto{font-size:15px}
  .bl-capa-titulo{font-size:clamp(25px,7vw,32px)}
  .bl-capa-figura img{border-radius:16px}
  .bl-capa-resumo{font-size:15.5px}
  .bl-biblioteca-cabeca p{font-size:15.5px}
  .bl-ferramentas-form{gap:12px}
  .bl-campo-busca,.bl-campo-filtro{flex:1 1 100%}
  .bl-limpar{width:100%}
  .bl-item>a{grid-template-columns:32px minmax(0,1fr);column-gap:12px;margin:0 -10px;padding:17px 10px}
  .bl-item h3{font-size:clamp(18px,5vw,21px)}
  .bl-item p{font-size:15px}
  .ar-cabeca h1{font-size:clamp(29px,8.4vw,38px)}
  .ar-lead{font-size:17px}
  .ar-capa{margin:28px auto -40px;padding:0 18px}
  .ar-capa img{border-radius:16px}
  .ar-corpo{padding:70px 18px 30px}
  .ar-corpo>h2{margin-top:44px;font-size:clamp(23px,6.6vw,28px)}
  .ar-sumario{padding:19px 18px 20px}
  .ar-sumario a{font-size:15px}
  .ar-corpo>.ar-figura{margin:34px auto 32px}
  .ar-figura img{border-radius:14px}
  .ar-corpo>.ar-fontes{padding:20px 18px 21px}
  .ar-capa img{max-height:min(62vh,420px)}
  .ar-relacionados li{padding:15px 0 14px}
  .bl-fecho{padding:64px 0 72px}
}
@media (prefers-reduced-motion:reduce){
  .bl-card-midia img,.bl-item>a,.bl-caminhos-lista a,.ar-relacionados a,.bl-limpar{transition:none}
}