/* ---------- Tokens ---------- */
:root {
  --bg: #ffffff;
  --bg-soft: #f3f3f1;
  --card: #ffffff;
  --ink: #121212;
  --ink-soft: #5c5c5c;
  --dark: #101113;
  --accent: #2d5089;
  --accent-soft: #91acd1;
  --line: #e2e2df;
  --white: #ffffff;

  /* Cores da marca NETAS (Tangram) */
  --netas-marrom: #724323;
  --netas-verde: #96bb52;
  --netas-amarelo: #eca240;
  --netas-vermelho: #c83732;
  --netas-azul: #2d5089;

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  --max: 1180px;
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0 0 .5em;
  color: var(--ink);
}
p { margin: 0 0 1em; }
ul { padding-left: 1.2em; }
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
}
.sr-only {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--dark); color: var(--white);
  padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

.rotulo {
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .74rem;
  font-weight: 700;
  color: var(--accent);
  display: inline-block;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--accent);
  margin-bottom: 22px;
}

/* ---------- Fotos em preto e branco ---------- */
.foto-pb { filter: grayscale(1) contrast(1.04); }

/* ---------- Buttons ---------- */
.botao {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 16px 0;
  text-decoration: none;
  border: none;
  border-top: 1px solid currentColor;
  cursor: pointer;
  background: none;
  color: inherit;
  transition: gap .2s ease, opacity .2s ease;
}
.botao::after { content: "→"; font-size: 1rem; transition: transform .2s ease; }
.botao:hover { gap: 16px; }
.botao--primario { color: var(--ink); }
.botao--secundario { color: var(--ink-soft); }
.botao--claro { color: var(--white); }
.botao--bloco {
  border-top: none;
  background: var(--netas-amarelo);
  color: var(--dark);
  padding: 17px 36px;
  font-weight: 700;
}
.botao--bloco:hover { background: var(--white); }
.botao--bloco::after { content: ""; }

/* ---------- Header ---------- */
.site-header {
  background: var(--dark);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
}
.brand { display: inline-flex; text-decoration: none; }
.brand__logo {
  height: 42px; width: auto; max-width: none;
  align-self: flex-start; flex-shrink: 0;
  filter: grayscale(1) brightness(1.4);
}
.brand__logo--footer { height: 38px; margin-bottom: 18px; }

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-weight: 500;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.nav a { text-decoration: none; color: #a7a8ac; padding-bottom: 3px; border-bottom: 1px solid transparent; }
.nav a:hover { color: var(--white); border-color: var(--accent-soft); }
.nav a.nav--ativo { color: var(--netas-amarelo); border-color: var(--netas-amarelo); }
.nav__cta {
  color: var(--dark) !important;
  font-weight: 700;
  background: var(--netas-amarelo);
  padding: 9px 18px;
  border-bottom: none !important;
}
.nav__cta:hover { background: var(--white); }

.nav__item-destaque { display: inline-flex; align-items: center; gap: 6px; }
.nav__badge {
  display: inline-block;
  background: var(--netas-vermelho);
  color: var(--white);
  font-size: .62rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 2px 7px;
  border-radius: 999px;
  line-height: 1.4;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none; border: none; cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--white);
}

/* ---------- Efeito de fundo tecnológico (pontos à deriva) ---------- */
@keyframes deriva-pontos {
  from { background-position: 0 0; }
  to { background-position: 140px 140px; }
}
.tech-bg { position: relative; }
.tech-bg::before {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(145,172,209,.55) 1px, transparent 1.6px);
  background-size: 30px 30px;
  animation: deriva-pontos 50s linear infinite;
  opacity: .35;
  pointer-events: none;
  z-index: 1;
  /* some pontos desaparecem suavemente nas bordas, evitando costura de
     renderização exatamente na linha de transição para a seção seguinte */
  mask-image: linear-gradient(to bottom, transparent 0, black 20px, black calc(100% - 20px), transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, black 20px, black calc(100% - 20px), transparent 100%);
}
@media (prefers-reduced-motion: reduce) {
  .tech-bg::before { animation: none; }
}

/* ---------- Hero (Início / Sobre / NETAS / Palestras / Livros) ---------- */
/* Duas colunas: texto à esquerda, foto à direita na proporção original (sem cortar o rosto) */
.hero-full {
  position: relative;
  display: flex;
  align-items: stretch;
  min-height: 78vh;
  background: var(--dark);
  overflow: hidden;
  color: var(--white);
  margin-bottom: -1px; /* evita costura de sub-pixel com a seção seguinte */
}
.hero-full--menor { min-height: 66vh; }
.hero-full__conteudo { position: relative; z-index: 3; flex: 1; display: flex; flex-direction: column; justify-content: flex-start; padding: 128px clamp(24px, 5vw, 64px) 56px; min-width: 0; }
.hero-full__media {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  height: auto;
  width: clamp(220px, 30vw, 460px);
  align-self: stretch;
}
.hero-full__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 50% 12%;
  /* filter: grayscale(1) contrast(1.08) brightness(.96); [teste: fotos coloridas — para voltar ao P&B, descomente esta linha] */
}
.hero-full__media img.sem-pb { filter: none; object-position: 50% 50%; object-fit: contain; }

/* ---------- Capa de livro em 3D (mockup via CSS, sem imagem gerada) ---------- */
.hero-full__media--livro3d {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  width: clamp(280px, 40vw, 580px);
}
.livro3d {
  perspective: 1400px;
  width: 100%;
  max-width: 338px;
}
.livro3d__capa {
  position: relative;
  transform-style: preserve-3d;
  transform: rotateY(-30deg) rotateX(3deg);
  transition: transform .5s cubic-bezier(.2, .8, .2, 1);
}
.livro3d:hover .livro3d__capa { transform: rotateY(-18deg) rotateX(1deg); }
.livro3d__capa img {
  display: block;
  width: 100%;
  aspect-ratio: 816 / 1170;
  object-fit: cover;
  border-radius: 2px 5px 5px 2px;
  box-shadow: 10px 14px 34px -10px rgba(0,0,0,.65);
}
/* páginas, na lateral direita — folhas finas + sombreado geral do papel */
.livro3d__capa::before {
  content: "";
  position: absolute;
  top: 3px; bottom: 3px; right: -68px;
  width: 68px;
  background-image: url(/assets/img/livros/textura-paginas.jpg);
  background-size: 100% 100%;
  transform: rotateY(90deg);
  transform-origin: left center;
  box-shadow: inset -8px 0 12px rgba(0,0,0,.35), inset 4px 0 5px rgba(0,0,0,.18);
}
/* sombreado sutil perto da lombada, para sugerir curvatura */
.livro3d__capa::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,.4), transparent 20%);
  border-radius: inherit;
  pointer-events: none;
}
/* sombra de contato no "chão" */
.livro3d-sombra {
  width: 68%;
  height: 22px;
  margin: 22px auto 0;
  background: radial-gradient(ellipse at center, rgba(0,0,0,.5), transparent 72%);
  filter: blur(2px);
}

.hero-full__duo {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(155deg, rgba(45,80,137,.45), rgba(10,12,20,.05) 60%);
  mix-blend-mode: multiply;
}
.hero-full .rotulo { color: var(--accent-soft); border-color: var(--accent-soft); }
.hero-full h1 { color: var(--white); font-size: clamp(2rem, 3.6vw, 3.1rem); max-width: 17ch; margin-bottom: .4em; }
.hero-full__intro { color: #d3d6de; font-size: 1.1rem; max-width: 50ch; line-height: 1.7; }
.hero-full__ctas { display: flex; gap: 34px; align-items: center; flex-wrap: wrap; margin-top: 30px; }

/* Hero sem foto (páginas internas) */
.hero-banner { background: var(--dark); color: var(--white); padding: 84px 0 66px; position: relative; margin-bottom: -1px; }
.hero-banner .wrap { position: relative; z-index: 2; }
.hero-banner .rotulo { color: var(--accent-soft); border-color: var(--accent-soft); }
.hero-banner h1 { color: var(--white); font-size: clamp(2rem, 3vw, 2.7rem); max-width: 18ch; }
.hero-banner__intro { color: #c7cad2; max-width: 60ch; font-size: 1.08rem; }
.hero-banner__conteudo { display: flex; flex-direction: column; max-width: 780px; }

.hero-banner--artigo { padding-top: 56px; }
.artigo-voltar {
  display: inline-block; color: #c7cad2; text-decoration: none;
  font-size: .82rem; font-weight: 600; margin-bottom: 26px;
}
.artigo-voltar:hover { color: var(--white); }
.artigo-autoria { color: #c7cad2; font-size: .95rem; margin-top: 10px; }

/* ---------- Artigos ---------- */
.grid-artigos {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.artigos-vermais { text-align: center; margin-top: 40px; }
.artigo-card--oculto { display: none; }
.artigo-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 8px;
  padding: 0 28px 30px;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.artigo-card:hover { transform: translateY(-3px); box-shadow: 0 16px 28px -18px rgba(20,18,15,.28); }
.artigo-card__capa {
  display: block;
  width: calc(100% + 56px);
  margin: 0 -28px 22px;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.artigo-card__capa img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.artigo-card:hover .artigo-card__capa img { transform: scale(1.04); }
.artigo-card h3 { font-size: 1.12rem; line-height: 1.3; margin-bottom: .6em; }
.artigo-card h3 a { color: inherit; text-decoration: none; }
.artigo-card h3 a:hover { color: var(--accent); }
.artigo-card p { color: var(--ink-soft); font-size: .92rem; flex: 1; margin-bottom: 20px; }
.artigo-card .botao--secundario { margin-top: auto; }

/* Cores cicladas (marca NETAS), acompanhando a borda superior do card */
.artigo-card:nth-child(5n+1) { border-top-color: var(--netas-marrom); color: var(--netas-marrom); }
.artigo-card:nth-child(5n+2) { border-top-color: var(--netas-verde); color: var(--netas-verde); }
.artigo-card:nth-child(5n+3) { border-top-color: var(--netas-amarelo); color: var(--netas-amarelo); }
.artigo-card:nth-child(5n+4) { border-top-color: var(--netas-vermelho); color: var(--netas-vermelho); }
.artigo-card:nth-child(5n+5) { border-top-color: var(--netas-azul); color: var(--netas-azul); }
.artigo-card h3, .artigo-card p { color: var(--ink-soft); }
.artigo-card h3 { color: var(--ink); }

/* ---------- Capa gerada (arte, sem foto) ---------- */
.artigo-capa-arte {
  position: relative;
  background: var(--dark);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.artigo-capa-arte__formas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }
.artigo-capa-arte__palavra {
  position: relative; z-index: 2;
  display: block; color: var(--white);
  font-weight: 800; text-transform: uppercase; letter-spacing: .01em;
  line-height: 1.05;
}
.artigo-capa-arte--card { aspect-ratio: 16 / 9; padding: 18px 22px; }
.artigo-capa-arte--card .artigo-capa-arte__palavra { font-size: 1.35rem; max-width: 85%; }
.artigo-capa-arte--full {
  aspect-ratio: 21 / 9; border-radius: 8px; padding: 32px 40px;
  box-shadow: 0 20px 40px -20px rgba(20,18,15,.4);
  color: var(--accent);
}
.artigo-capa-arte--full .artigo-capa-arte__palavra { font-size: clamp(1.8rem, 4.4vw, 3rem); max-width: 70%; }

.artigo-capa { max-width: 900px; margin: 0 auto; padding: 0 24px; margin-top: -34px; position: relative; z-index: 2; }
.artigo-capa-foto {
  width: 100%; height: auto; aspect-ratio: 21/9; object-fit: cover;
  border-radius: 8px; display: block;
  box-shadow: 0 20px 40px -20px rgba(20,18,15,.4);
}
.artigo-capa-credito { font-size: .76rem; color: var(--ink-soft); text-align: right; margin: 8px 4px 0; }
.artigo-capa-credito a { color: var(--ink-soft); text-decoration: underline; }
.artigo-capa-credito a:hover { color: var(--ink); }

.artigo-corpo { max-width: 700px; }
.artigo-corpo p { color: var(--ink-soft); font-size: 1.05rem; line-height: 1.75; margin-bottom: 1.4em; }
.artigo-corpo strong { color: var(--ink); font-weight: 700; }
.artigo-corpo h3 { font-size: 1.25rem; margin-top: 1.3em; }
.artigo-corpo hr { border: none; border-top: 1px solid var(--line); margin: 2.2em 0; }
.artigo-corpo em { color: var(--ink-soft); }

/* ---------- Chamada NETAS ao final do artigo ---------- */
.artigo-netas-cta {
  display: flex;
  align-items: center;
  gap: 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 30px 34px;
  overflow: hidden;
  position: relative;
}
.artigo-netas-cta__faixa {
  position: absolute; top: 0; left: 0; bottom: 0;
  width: 5px;
  background: linear-gradient(180deg,
    var(--netas-marrom) 0 20%,
    var(--netas-verde) 20% 40%,
    var(--netas-amarelo) 40% 60%,
    var(--netas-vermelho) 60% 80%,
    var(--netas-azul) 80% 100%);
}
.artigo-netas-cta__texto { flex: 1; min-width: 0; padding-left: 10px; }
.artigo-netas-cta__texto .rotulo { border-bottom: none; padding-bottom: 0; margin-bottom: 6px; }
.artigo-netas-cta__texto p { margin: 0; color: var(--ink-soft); font-size: 1rem; }
.artigo-netas-cta .botao--secundario { flex-shrink: 0; }

/* ---------- Compartilhar artigo ---------- */
.artigo-compartilhar {
  display: flex;
  align-items: center;
  gap: 18px;
  max-width: 700px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.artigo-compartilhar__rotulo {
  font-size: .74rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  color: var(--ink-soft);
}
.artigo-compartilhar__links { display: flex; align-items: center; gap: 10px; }
.artigo-compartilhar__links a,
.artigo-compartilhar__copiar {
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  background: none;
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, transform .2s ease;
}
.artigo-compartilhar__links a svg,
.artigo-compartilhar__copiar svg { width: 17px; height: 17px; }
.artigo-compartilhar__links a:hover,
.artigo-compartilhar__copiar:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.artigo-compartilhar__copiar { gap: 0; }
.artigo-compartilhar__copiar span { display: none; }
.artigo-compartilhar__copiar.copiado { width: auto; padding: 0 16px; border-color: var(--netas-verde); color: var(--netas-verde); gap: 8px; }
.artigo-compartilhar__copiar.copiado span { display: inline; font-size: .8rem; font-weight: 600; white-space: nowrap; }

/* ---------- Navegação entre artigos (anterior / próximo) ---------- */
.artigo-navegacao {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}
.artigo-navegacao__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-decoration: none;
  color: inherit;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: border-color .2s ease, transform .2s ease;
}
.artigo-navegacao__item:hover { border-color: var(--accent); transform: translateY(-2px); }
.artigo-navegacao__item--proximo { grid-column: 2; text-align: right; align-items: flex-end; }
.artigo-navegacao__rotulo {
  font-size: .74rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  color: var(--accent);
}
.artigo-navegacao__titulo { font-weight: 600; font-size: 1rem; line-height: 1.35; }

/* ---------- Barra de números ---------- */
.stats-bar { background: var(--dark); padding: 44px 0; position: relative; margin-bottom: -1px; }
.stats-bar .wrap { position: relative; z-index: 2; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat b {
  display: block;
  font-weight: 800;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--white);
}
.stat span { display: block; margin-top: 6px; font-size: .82rem; color: #9a9ba0; letter-spacing: .02em; }

/* ---------- Sections ---------- */
section { padding: 92px 0; }
.section--tight { padding-top: 0; }
.section--soft { background: var(--bg-soft); }
.section__cabecalho { max-width: 640px; margin-bottom: 50px; }
.section__cabecalho h2 { font-size: clamp(1.7rem, 2.4vw, 2.2rem); }
.section__cabecalho > p { color: var(--ink-soft); margin-top: 12px; font-size: 1.05rem; }

/* ---------- Destaques (home) ---------- */
.grid-cards { display: grid; grid-template-columns: repeat(3, 1fr); }
.card { padding: 8px 40px 8px 0; }
.card:not(:first-child) { border-left: 1px solid var(--line); padding-left: 40px; }
.card .num { font-weight: 700; color: var(--accent); font-size: .95rem; display: block; margin: 20px 0 22px; }
.card:nth-child(1) .num { color: var(--netas-vermelho); }
.card:nth-child(2) .num { color: var(--netas-azul); }
.card:nth-child(3) .num { color: var(--netas-amarelo); }
.card h3 { font-size: 1.3rem; margin-bottom: .5em; }
.card p { color: var(--ink-soft); margin-bottom: 1.6em; }

/* ---------- Citação ---------- */
.citacao { text-align: center; max-width: 780px; margin: 0 auto; }
.citacao p.frase {
  font-weight: 700;
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  color: var(--ink);
  margin: 0 auto 20px;
  line-height: 1.4;
  letter-spacing: -.01em;
}
.citacao .fonte { color: var(--ink-soft); font-size: .84rem; text-transform: uppercase; letter-spacing: .08em; }

/* ---------- Timeline (Linha do Tempo) ---------- */
.timeline { position: relative; margin-top: 8px; max-width: 900px; }
.timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
  align-items: center;
}
.timeline__item:last-child { border-bottom: 1px solid var(--line); }
.timeline__ano { font-weight: 800; color: var(--accent); font-size: 1rem; }
.timeline__item p { color: var(--ink-soft); margin: 0; max-width: 58ch; }

.timeline__foto {
  width: 128px; height: 128px;
  border-radius: 50%;
  object-fit: cover;
  /* filter: grayscale(1) contrast(1.05); [teste: fotos coloridas — para voltar ao P&B, descomente esta linha] */
  grid-row: 1 / 2;
  box-shadow: 0 0 0 1px var(--line);
}
.timeline__foto--livro {
  width: 108px; height: auto;
  aspect-ratio: 816 / 1170;
  border-radius: 6px;
  object-fit: contain;
  filter: none;
  border: 3px solid var(--netas-amarelo);
  padding: 3px;
  background: var(--white);
  align-self: center;
}
.timeline--fotos .timeline__item:has(.timeline__foto) { grid-template-columns: 128px 96px 1fr; gap: 20px; }
.timeline--fotos .timeline__item:not(:has(.timeline__foto)) { grid-template-columns: 96px 1fr; gap: 20px; padding-left: 148px; }

/* ---------- Sigla NETAS ---------- */
.netas-sigla {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.netas-sigla > div {
  text-align: center;
  padding: 28px 10px;
}
.netas-sigla .letra { display: block; width: 128px; height: 128px; margin: 0 auto; object-fit: contain; }
.netas-sigla .palavra { display: block; margin-top: 12px; font-weight: 600; font-size: .92rem; }

/* ---------- Destaque: lançamento da biografia ---------- */
.destaque-biografia {
  display: flex;
  align-items: center;
  gap: 32px;
  background: var(--dark);
  color: var(--white);
  border-radius: 8px;
  padding: 28px 32px;
}
.destaque-biografia__capa { width: 64px; flex-shrink: 0; box-shadow: 0 10px 20px -8px rgba(0,0,0,.5); }
.destaque-biografia__texto { flex: 1; min-width: 0; }
.destaque-biografia .rotulo { color: var(--accent-soft); border-color: var(--accent-soft); margin-bottom: 8px; }
.destaque-biografia h3 { color: var(--white); font-size: 1.15rem; margin-bottom: .3em; }
.destaque-biografia p { color: #c7cad2; margin-bottom: 0; font-size: .92rem; }
.destaque-biografia .botao { color: var(--white); flex-shrink: 0; }

/* ---------- Ficha técnica do livro (Biografia) ---------- */
.ficha-livro { display: grid; grid-template-columns: 1.4fr 1fr; gap: 64px; align-items: start; }
.ficha-livro .rotulo { display: inline-block; }
.ficha-livro h2 { margin-top: 0; }
.ficha-livro p { color: var(--ink-soft); }
.ficha-livro .contato-info { margin-top: 40px; }

.autor-bloco { display: flex; gap: 28px; align-items: flex-start; }
.autor-bloco__foto {
  width: 150px; height: auto;
  aspect-ratio: 1024 / 1536;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
  filter: grayscale(1) contrast(1.05);
  box-shadow: 0 0 0 1px var(--line);
}
.autor-bloco > div { min-width: 0; }

/* ---------- Bloco do Tangram (NETAS) ---------- */
.tangram-bloco { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; align-items: center; }
.tangram-bloco__imagem { display: flex; justify-content: center; }
.tangram-bloco__imagem img { max-width: 280px; }
.tangram-lista { margin-top: 28px; display: grid; gap: 18px; }
.tangram-lista dt { font-weight: 700; display: flex; align-items: center; gap: 10px; }
.tangram-lista dd { margin: 4px 0 0 22px; color: var(--ink-soft); font-size: .95rem; }
.ponto { width: 12px; height: 12px; border-radius: 50%; display: inline-block; flex-shrink: 0; }
.ponto--marrom { background: var(--netas-marrom); }
.ponto--verde { background: var(--netas-verde); }
.ponto--amarelo { background: var(--netas-amarelo); }
.ponto--vermelho { background: var(--netas-vermelho); }
.ponto--azul { background: var(--netas-azul); }

/* ---------- Filosofias de Vida (grade de cards, 2 colunas x 5 linhas) ---------- */
.filosofias-lista {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.filosofia-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 6px;
  padding: 28px;
}
.filosofia-item:nth-child(1) { border-top-color: var(--netas-marrom); }
.filosofia-item:nth-child(2) { border-top-color: var(--netas-verde); }
.filosofia-item:nth-child(3) { border-top-color: var(--netas-azul); }
.filosofia-item:nth-child(4) { border-top-color: var(--netas-vermelho); }
.filosofia-item:nth-child(5) { border-top-color: var(--netas-amarelo); }
.filosofia-item:nth-child(6) { border-top-color: var(--netas-azul); }
.filosofia-item:nth-child(7) { border-top-color: var(--netas-vermelho); }
.filosofia-item:nth-child(8) { border-top-color: var(--netas-marrom); }
.filosofia-item:nth-child(9) { border-top-color: var(--netas-amarelo); }
.filosofia-item:nth-child(10) { border-top-color: var(--netas-verde); }
.filosofia-item__cabecalho { display: flex; align-items: baseline; gap: 12px; margin-bottom: 10px; }
.filosofia-item .num { font-weight: 800; color: var(--ink-soft); font-size: .85rem; min-width: 20px; }
.filosofia-item h3 { font-size: 1.08rem; margin: 0; }
.filosofia-item p { color: var(--ink-soft); margin-bottom: 0; }
.filosofia-item blockquote {
  margin: 14px 0 0; padding-left: 16px;
  border-left: 3px solid var(--line);
  font-style: italic; color: var(--ink);
  font-size: .95rem;
}
.filosofia-item p + blockquote { margin-top: 14px; }

/* ---------- Palestras (cards) ---------- */
.grid-palestras {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.palestra-card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 8px;
  padding: 30px 28px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.palestra-card:hover { transform: translateY(-3px); box-shadow: 0 16px 28px -18px rgba(20,18,15,.28); }
.palestra-card:nth-child(5n+1) { border-top-color: var(--netas-marrom); }
.palestra-card:nth-child(5n+2) { border-top-color: var(--netas-verde); }
.palestra-card:nth-child(5n+3) { border-top-color: var(--netas-amarelo); }
.palestra-card:nth-child(5n+4) { border-top-color: var(--netas-vermelho); }
.palestra-card:nth-child(5n+5) { border-top-color: var(--netas-azul); }
.palestra-card__numero {
  font-size: .74rem; font-weight: 700; letter-spacing: .1em;
  color: var(--ink-soft); margin-bottom: 14px; display: block;
}
.palestra-card__numero::before { content: "TEMA "; }
.palestra-card h3 { font-size: 1.12rem; line-height: 1.3; margin-bottom: .6em; }
.palestra-card p { color: var(--ink-soft); font-size: .92rem; flex: 1; }
.palestra-card__duracao {
  display: block; font-weight: 600;
  font-size: .82rem; color: var(--ink); margin-top: 18px;
  border-top: 1px solid var(--line); padding-top: 14px;
}

/* ---------- Livros (cards editoriais, capa pequena) ---------- */
.grid-livros {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 48px;
  margin-top: 8px;
}
.livro-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.livro-card__capa {
  width: 76px; flex-shrink: 0;
  aspect-ratio: 3/4.3; background: var(--bg-soft);
  display: flex; align-items: center; justify-content: center;
}
.livro-card__capa img { width: 100%; height: 100%; object-fit: cover; box-shadow: 0 10px 18px -10px rgba(0,0,0,.35); }
.livro-card__corpo { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.livro-card h3 { font-size: .98rem; margin-bottom: .4em; }
.livro-card p { color: var(--ink-soft); font-size: .88rem; margin-bottom: .8em; }
.livro-card .botao { font-size: .74rem; padding: 0; border-top: none; align-self: flex-start; }

/* Botão "Baixar livro" — pill sofisticado com ícone */
.botao--download {
  gap: 8px;
  padding: 10px 18px 10px 14px;
  border: 1.5px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  transition: background .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.botao--download svg { width: 14px; height: 14px; flex-shrink: 0; }
.botao--download::after { content: none; }
.botao--download:hover {
  background: var(--accent); color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 8px 16px -8px rgba(45,80,137,.5);
  gap: 8px;
}
.livro-card .botao--download { padding: 10px 18px 10px 14px; border: 1.5px solid var(--accent); font-size: .74rem; }

/* ---------- Formulário ---------- */
.formulario { display: grid; gap: 24px; margin-top: 40px; max-width: 640px; }
.formulario__linha { display: flex; flex-direction: column; gap: 8px; }
.formulario__linha--dupla { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.formulario__linha--dupla > div { display: flex; flex-direction: column; gap: 8px; }
.formulario label {
  font-weight: 600; font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-soft);
}
.formulario input, .formulario textarea {
  font-family: var(--sans); font-size: 1rem; padding: 12px 2px;
  border: none; border-bottom: 1px solid var(--line); border-radius: 0;
  background: transparent; color: var(--ink);
}
.formulario input:focus, .formulario textarea:focus { outline: none; border-color: var(--ink); }
.formulario button { margin-top: 8px; justify-self: start; }

/* ---------- Contato info ---------- */
.contato-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; }
.contato-cta {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 8px;
  padding: 40px;
  align-self: start;
}
.contato-cta h3 { font-size: 1.3rem; margin-bottom: .4em; }
.contato-cta p { color: var(--ink-soft); margin-bottom: 24px; }
.contato-cta--solo { max-width: 520px; margin: 0 auto; text-align: center; padding: 56px 48px; }
.contato-cta--solo .rotulo { display: inline-block; }
.contato-info dt {
  font-size: .74rem; text-transform: uppercase; letter-spacing: .12em;
  font-weight: 700; color: var(--accent); margin-top: 28px;
}
.contato-info dd { margin: 8px 0 0; color: var(--ink-soft); font-size: 1.05rem; }
.contato-info dt:first-child { margin-top: 0; }

/* ---------- Footer ---------- */
.site-footer { background: var(--dark); color: #9a9ba0; padding: 68px 0 26px; }
.site-footer a { text-decoration: none; color: #9a9ba0; }
.site-footer a:hover { color: var(--white); }
.site-footer__inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.site-footer__col { display: flex; flex-direction: column; gap: 10px; font-size: .95rem; }
.site-footer__titulo {
  font-weight: 700; color: #d4d5d9; text-transform: uppercase;
  font-size: .74rem; letter-spacing: .12em; margin-bottom: 8px;
}
.social-links { display: flex; flex-direction: column; gap: 10px; }
.site-footer__copy { text-align: center; font-size: .78rem; color: #6d6e73; margin: 60px 0 0; }

/* ---------- Responsivo ---------- */
@media (max-width: 900px) {
  .hero-full { flex-direction: column-reverse; min-height: auto; }
  .hero-full--menor { min-height: auto; }
  .hero-full__media { width: 100%; height: 62vw; max-height: 380px; }
  .hero-full__media--livro3d { height: auto; max-height: none; padding: 28px 0 8px; }
  .livro3d { max-width: 220px; margin: 0 auto; }
  .hero-full__conteudo { padding: 32px 24px 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .netas-sigla { grid-template-columns: repeat(2, 1fr); }
  .tangram-bloco { grid-template-columns: 1fr; gap: 32px; }
  .ficha-livro { grid-template-columns: 1fr; gap: 32px; }
  .autor-bloco { flex-direction: column; }
  .destaque-biografia { flex-wrap: wrap; }
  .filosofias-lista { grid-template-columns: 1fr; }
  .grid-cards { grid-template-columns: 1fr; }
  .card:not(:first-child) { border-left: none; padding-left: 0; border-top: 1px solid var(--line); margin-top: 8px; }
  .grid-livros { grid-template-columns: repeat(2, 1fr); }
  .grid-palestras { grid-template-columns: repeat(2, 1fr); }
  .grid-artigos { grid-template-columns: repeat(2, 1fr); }
  .artigo-netas-cta { flex-direction: column; align-items: flex-start; gap: 18px; }
  .galeria { grid-template-columns: repeat(2, 1fr); }
  .contato-grid { grid-template-columns: 1fr; gap: 48px; }
  .site-footer__inner { grid-template-columns: 1fr; gap: 32px; }
  .timeline__item { grid-template-columns: 1fr !important; gap: 6px; padding-left: 0 !important; }
  .timeline__foto { margin-bottom: 8px; }
  .wrap { padding: 0 24px; }

  .nav-toggle { display: flex; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--dark);
    flex-direction: column; align-items: flex-start; gap: 0;
    padding: 8px 24px 24px; display: none;
  }
  .nav.is-aberto { display: flex; }
  .nav a { width: 100%; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.12) !important; }
  .nav__cta { text-align: center; margin-top: 10px; }
}

@media (max-width: 560px) {
  .grid-livros { grid-template-columns: 1fr; }
  .grid-palestras { grid-template-columns: 1fr; }
  .grid-artigos { grid-template-columns: 1fr; }
  .artigo-navegacao { grid-template-columns: 1fr; }
  .artigo-navegacao__item--proximo { grid-column: 1; text-align: left; align-items: flex-start; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  section { padding: 60px 0; }
  .formulario__linha--dupla { grid-template-columns: 1fr; }
}

/* ---------- Reveal ao rolar a página ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal--in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Entrada animada da logo, ao carregar o site ---------- */
@keyframes marca-entrada {
  from { opacity: 0; transform: translateY(-10px) scale(.88); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.site-header .brand__logo {
  animation: marca-entrada .7s cubic-bezier(.2, .8, .2, 1) both;
}
@media (prefers-reduced-motion: reduce) {
  .site-header .brand__logo { animation: none; }
}

/* ---------- Entrada animada do livro 3D (Biografia) ---------- */
@keyframes livro3d-entrada {
  from { opacity: 0; transform: translateY(36px) scale(.9); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.livro3d {
  animation: livro3d-entrada 1s cubic-bezier(.2, .8, .2, 1) both;
  animation-delay: .15s;
}
@media (prefers-reduced-motion: reduce) {
  .livro3d { animation: none; }
}

/* ---------- Página 404 (terminal SIGA) ---------- */
.erro404 { align-items: stretch; }
.erro404__conteudo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  min-height: 78vh;
  padding-top: 76px;
  padding-bottom: 76px;
  position: relative;
  z-index: 3;
  flex-wrap: wrap-reverse;
}
.erro404__texto { flex: 1 1 360px; min-width: 280px; }
.erro404__texto h1 { color: var(--white); font-size: clamp(1.8rem, 3.2vw, 2.5rem); max-width: 17ch; margin-bottom: .4em; }

.terminal {
  flex: 1 1 460px;
  max-width: 520px;
  width: 100%;
  background: #0c0f0a;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.7);
  border: 1px solid rgba(255,255,255,.08);
}
.terminal__barra {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  background: #1b1e18;
}
.terminal__barra span:not(.terminal__titulo) {
  width: 10px; height: 10px; border-radius: 50%;
  background: #4a4d46;
  display: inline-block;
}
.terminal__titulo {
  margin-left: auto;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .06em;
  color: #7a8073;
}
.terminal__tela {
  padding: 26px 22px 32px;
  font-family: var(--mono);
  font-size: .84rem;
  line-height: 1.85;
}
.terminal__tela p {
  margin: 0;
  color: #7ee787;
  text-shadow: 0 0 6px rgba(126,231,135,.35);
}
.terminal__erro {
  color: #ff8383 !important;
  text-shadow: 0 0 8px rgba(255,131,131,.4) !important;
  font-weight: 700;
  margin-top: .5em !important;
}
.terminal__cursor { display: inline-block; animation: cursor-piscar 1s steps(1) infinite; }
@keyframes cursor-piscar { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) {
  .terminal__cursor { animation: none; }
}

@media (max-width: 900px) {
  .erro404__conteudo { padding-top: 48px; padding-bottom: 48px; min-height: auto; gap: 36px; }
  .terminal__tela { font-size: .76rem; }
}