/* ============================================================
   Giovani Beirigo | Direito Societário, Governança e M&A
   Identidade pessoal derivada do BBM
   ============================================================ */

:root {
  /* Cores base BBM */
  --petroleo: #124634;
  --petroleo-profundo: #0D3527;
  --prata: #A2A9AD;
  --neutro-claro: #F4F5F4;
  --branco: #FFFFFF;

  /* Assinatura pessoal: um dourado sóbrio como acento próprio do Giovani */
  --acento: #B08D57;
  --acento-claro: #C9A876;

  /* Tons de texto */
  --tinta: #16201C;
  --tinta-suave: #41524B;
  --tinta-tenue: #6E7B75;
  --linha: #E2E5E2;

  /* Tipografia */
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Archivo", Arial, Helvetica, sans-serif;

  /* Métricas */
  --container: 1120px;
  --container-estreito: 760px;
  --radius: 4px;
  --transicao: 0.25s ease;
}

/* ---------- Reset leve ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.65;
  color: var(--tinta);
  background: var(--branco);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--petroleo-profundo);
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.6rem); }
p { margin: 0 0 1.2em; }
.lead {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  line-height: 1.55;
  color: var(--tinta-suave);
}

/* Régua | barrinha de acento usada nos títulos de seção */
.eyebrow {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--acento);
  margin: 0 0 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--acento);
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.container-estreito { max-width: var(--container-estreito); }
section { padding: clamp(56px, 9vw, 110px) 0; }
.bg-claro { background: var(--neutro-claro); }
.bg-petroleo { background: var(--petroleo); color: var(--neutro-claro); }
.bg-petroleo h1, .bg-petroleo h2, .bg-petroleo h3 { color: var(--branco); }

/* ---------- Header / navegação ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--linha);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand { display: flex; flex-direction: column; line-height: 1.05; }
.brand .nome {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--petroleo-profundo);
  letter-spacing: -0.01em;
}
.brand .papel {
  font-family: var(--sans);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tinta-tenue);
  margin-top: 2px;
}
.nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--tinta-suave);
  position: relative;
  padding: 4px 0;
  transition: color var(--transicao);
}
.nav-links a:hover, .nav-links a.ativo { color: var(--petroleo); }
.nav-links a.ativo::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 2px;
  background: var(--acento);
}
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--petroleo);
  margin: 5px 0;
  transition: var(--transicao);
}

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transicao);
}
.btn-primario { background: var(--petroleo); color: var(--branco); }
.btn-primario:hover { background: var(--petroleo-profundo); transform: translateY(-1px); }
.btn-fantasma { border-color: var(--prata); color: var(--petroleo); background: transparent; }
.btn-fantasma:hover { border-color: var(--petroleo); background: var(--petroleo); color: var(--branco); }
.btn-claro { background: var(--branco); color: var(--petroleo); }
.btn-claro:hover { background: var(--acento); color: var(--branco); }
.btn .seta { transition: transform var(--transicao); }
.btn:hover .seta { transform: translateX(4px); }

/* ---------- Hero ---------- */
.hero { padding: clamp(70px, 12vw, 150px) 0 clamp(56px, 9vw, 110px); }
.hero .lead { max-width: 580px; }

/* Hero em duas colunas com foto */
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero-foto {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--neutro-claro);
}
.hero-foto img { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.hero-foto::after {
  content: "";
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 0 1px rgba(13,53,39,0.08);
  border-radius: var(--radius);
  pointer-events: none;
}
.hero-foto .selo {
  position: absolute;
  left: 18px; bottom: 18px;
  z-index: 2;
  font-family: var(--serif);
  font-size: 0.95rem;
  color: var(--branco);
  background: rgba(13,53,39,0.55);
  backdrop-filter: blur(4px);
  padding: 7px 14px;
  border-radius: 100px;
  letter-spacing: 0.02em;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }
.hero-meta {
  margin-top: 3.5rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--linha);
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
}
.hero-meta div span {
  display: block;
  font-family: var(--serif);
  font-size: 1.8rem;
  color: var(--petroleo);
}
.hero-meta div small {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tinta-tenue);
}

/* ---------- Pilares ---------- */
.grid-pilares { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.pilar {
  background: var(--branco);
  border: 1px solid var(--linha);
  border-radius: var(--radius);
  padding: 2.2rem 2rem;
  transition: var(--transicao);
}
.pilar:hover { border-color: var(--acento); transform: translateY(-4px); box-shadow: 0 18px 40px rgba(13, 53, 39, 0.08); }
.pilar .num {
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--acento);
  border: 1px solid var(--acento);
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  margin-bottom: 1.4rem;
}
.pilar h3 { margin-bottom: 0.5rem; }
.pilar p { color: var(--tinta-suave); font-size: 1rem; margin: 0; }

/* ---------- Cabeçalho de seção ---------- */
.sec-head { max-width: 620px; margin-bottom: 3rem; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head.center .eyebrow { justify-content: center; }

/* ---------- Cards de post ---------- */
.grid-posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--branco);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--linha);
  transition: var(--transicao);
}
.post-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(13, 53, 39, 0.1); }
.post-card .capa {
  aspect-ratio: 16 / 10;
  background: var(--petroleo);
  position: relative;
  overflow: hidden;
}
.post-card .capa::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--petroleo) 0%, var(--petroleo-profundo) 100%);
  opacity: 0.92;
}
.post-card .capa .marca {
  position: absolute;
  bottom: 16px; right: 18px;
  z-index: 2;
  font-family: var(--serif);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.05em;
}
.post-card .corpo { padding: 1.6rem 1.6rem 1.8rem; display: flex; flex-direction: column; flex: 1; }
.tag {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--petroleo);
  background: var(--neutro-claro);
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 1rem;
}
.post-card h3 { font-size: 1.3rem; margin-bottom: 0.6rem; }
.post-card h3 a:hover { color: var(--acento); }
.post-card .resumo { font-size: 0.98rem; color: var(--tinta-suave); margin-bottom: 1.4rem; }
.post-card .meta {
  margin-top: auto;
  font-size: 0.82rem;
  color: var(--tinta-tenue);
  display: flex;
  gap: 0.6rem;
  align-items: center;
}
.post-card .meta .ponto { width: 3px; height: 3px; border-radius: 50%; background: var(--prata); }

/* ---------- Filtros do blog ---------- */
.filtros { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 3rem; justify-content: center; }
.filtro-btn {
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--linha);
  background: var(--branco);
  color: var(--tinta-suave);
  cursor: pointer;
  transition: var(--transicao);
}
.filtro-btn:hover { border-color: var(--petroleo); color: var(--petroleo); }
.filtro-btn.ativo { background: var(--petroleo); border-color: var(--petroleo); color: var(--branco); }
.post-card.oculto { display: none; }

/* ---------- Seção com foto (autor em ação) ---------- */
.secao-foto-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.secao-foto-grid.invertida { grid-template-columns: 1.05fr 0.95fr; }
.secao-foto-grid.invertida .moldura { order: 2; }
.moldura {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 5 / 4;
  background: var(--neutro-claro);
}
.moldura.retrato { aspect-ratio: 4 / 5; }
.moldura img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- Faixa CTA ---------- */
.cta-faixa { text-align: center; position: relative; }
.cta-faixa .lead { color: rgba(244,245,244,0.85); max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-faixa .hero-cta { justify-content: center; }
.cta-foto { position: relative; overflow: hidden; }
.cta-foto::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--bg-cta);
  background-size: cover;
  background-position: center;
  opacity: 0.16;
}
.cta-foto::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--petroleo) 0%, var(--petroleo-profundo) 100%);
  opacity: 0.82;
}
.cta-foto .container { position: relative; z-index: 2; }

/* ---------- Newsletter ---------- */
.news-box {
  max-width: 540px;
  margin: 2rem auto 0;
  display: flex;
  gap: 0.6rem;
}
.news-box input {
  flex: 1;
  font-family: var(--sans);
  font-size: 1rem;
  padding: 14px 18px;
  border: 1px solid var(--prata);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.06);
  color: var(--branco);
}
.news-box input::placeholder { color: rgba(244,245,244,0.6); }
.news-box input:focus { outline: none; border-color: var(--acento); }

/* ---------- Artigo (post individual) ---------- */
.artigo-header { padding: clamp(50px, 8vw, 90px) 0 0; }
.artigo-header .voltar {
  font-size: 0.85rem;
  color: var(--tinta-tenue);
  display: inline-flex;
  gap: 0.4rem;
  margin-bottom: 2rem;
}
.artigo-header .voltar:hover { color: var(--petroleo); }
.artigo-header h1 { margin-bottom: 1rem; }
.artigo-meta {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  font-size: 0.88rem;
  color: var(--tinta-tenue);
  margin-bottom: 2.5rem;
}
.artigo-capa {
  aspect-ratio: 21 / 9;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--petroleo) 0%, var(--petroleo-profundo) 100%);
  margin-bottom: 3rem;
}
.artigo-corpo { font-size: 1.12rem; line-height: 1.8; color: var(--tinta); }
.artigo-corpo h2 { margin: 2.4rem 0 1rem; }
.artigo-corpo h3 { margin: 2rem 0 0.8rem; }
.artigo-corpo blockquote {
  margin: 2rem 0;
  padding: 0.5rem 0 0.5rem 1.8rem;
  border-left: 3px solid var(--acento);
  font-family: var(--serif);
  font-size: 1.3rem;
  font-style: italic;
  color: var(--petroleo);
}
.artigo-corpo ul, .artigo-corpo ol { padding-left: 1.4rem; margin-bottom: 1.4rem; }
.artigo-corpo li { margin-bottom: 0.5rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--petroleo-profundo); color: var(--neutro-claro); padding: 70px 0 32px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255,255,255,0.12); }
.footer-top .brand .nome { color: var(--branco); }
.footer-top .brand .papel { color: var(--prata); }
.footer-top p { color: rgba(244,245,244,0.7); font-size: 0.95rem; max-width: 320px; margin-top: 1rem; }
.footer-col h4 { font-family: var(--sans); font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--prata); margin-bottom: 1.1rem; }
.footer-col a { display: block; font-size: 0.95rem; color: rgba(244,245,244,0.8); margin-bottom: 0.7rem; transition: color var(--transicao); }
.footer-col a:hover { color: var(--acento-claro); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.8rem;
  font-size: 0.82rem;
  color: rgba(244,245,244,0.55);
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom .oab { max-width: 640px; }

/* ---------- Utilidades ---------- */
.fade-up { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visivel { opacity: 1; transform: translateY(0); }

/* ---------- Responsivo ---------- */
@media (max-width: 900px) {
  .grid-pilares, .grid-posts { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-foto { max-width: 420px; margin: 0 auto; }
  .secao-foto-grid, .secao-foto-grid.invertida { grid-template-columns: 1fr; }
  .secao-foto-grid.invertida .moldura { order: 0; }
  .moldura { max-width: 520px; margin: 0 auto; }
}
@media (max-width: 680px) {
  body { font-size: 17px; }
  .nav-links {
    position: fixed;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--branco);
    border-bottom: 1px solid var(--linha);
    padding: 1rem 24px 1.6rem;
    transform: translateY(-130%);
    transition: transform var(--transicao);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
  }
  .nav-links.aberto { transform: translateY(0); }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 12px 0; width: 100%; border-bottom: 1px solid var(--linha); }
  .nav-toggle { display: block; }
  .grid-pilares, .grid-posts { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .news-box { flex-direction: column; }
  .hero-meta { gap: 1.6rem; }
}