/* ==========================================================================
   Editora Oiticica · estilo compartilhado por todas as páginas
   Cores tiradas da logomarca: teal do fundo (#274242) e ocre do anel (#C79A6B)
   Tipografia única: Manrope
   ========================================================================== */

:root {
  /* cor */
  --teal: #274242;
  --teal-escuro: #1B3030;
  --teal-medio: #3D5D5C;
  --nevoa: #EAF0EF;
  --nevoa-forte: #DCE6E5;
  --ocre: #C79A6B;
  --ocre-escuro: #8E6A43;
  --papel: #FAFBFA;
  --branco: #FFFFFF;
  --tinta: #102020;
  --tinta-2: #4A5A5A;
  --linha: #D8E2E1;
  --sobre-teal: #FFFFFF;
  --sobre-teal-2: rgba(255, 255, 255, .74);

  /* espaçamento (tabela fixa) */
  --s-25: 2px; --s-50: 4px; --s-75: 8px; --s-100: 12px; --s-200: 16px;
  --s-300: 24px; --s-400: 32px; --s-500: 40px; --s-600: 48px; --s-700: 64px;
  --s-800: 80px; --s-900: 96px;

  /* raio */
  --r-sm: 2px; --r: 4px; --r-md: 6px; --r-lg: 8px; --r-xl: 12px; --r-2xl: 16px; --r-3xl: 24px; --r-full: 9999px;

  /* movimento */
  --curva: cubic-bezier(0.22, 1, 0.36, 1);

  --fonte: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --largura: 1200px;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 96px; }
body {
  margin: 0;
  font-family: var(--fonte);
  font-size: 16px; line-height: 24px; font-weight: 400;
  color: var(--tinta);
  background: var(--papel);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; }
button { font: inherit; color: inherit; }
h1, h2, h3 { text-wrap: balance; }
p, li, dd { text-wrap: pretty; }
em, i { font-style: normal; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.pular {
  position: fixed; left: var(--s-200); top: var(--s-200); z-index: 500;
  background: var(--branco); color: var(--teal); padding: var(--s-75) var(--s-100);
  border-radius: var(--r-lg); font-weight: 600; transform: translateY(-200%);
}
.pular:focus { transform: none; }

:focus-visible { outline: 2px solid var(--ocre); outline-offset: 3px; border-radius: var(--r); }

.container { width: 100%; max-width: var(--largura); margin: 0 auto; padding: 0 var(--s-200); }
@media (min-width: 768px) { .container { padding: 0 var(--s-400); } }

/* ---------- estilos de texto (nomes fixos) ---------- */
.heading-1 { font-size: 60px; line-height: 60px; font-weight: 600; letter-spacing: -0.02em; }
.heading-2 { font-size: 48px; line-height: 48px; font-weight: 600; letter-spacing: -0.02em; }
.heading-3 { font-size: 36px; line-height: 40px; font-weight: 600; letter-spacing: -0.015em; }
.heading-4 { font-size: 30px; line-height: 36px; font-weight: 600; letter-spacing: -0.01em; }
.heading-5 { font-size: 24px; line-height: 32px; font-weight: 600; letter-spacing: -0.01em; }
.heading-6 { font-size: 20px; line-height: 28px; font-weight: 600; }
.title-1 { font-size: 20px; line-height: 28px; font-weight: 500; }
.title-2 { font-size: 18px; line-height: 28px; font-weight: 500; }
.title-3 { font-size: 16px; line-height: 24px; font-weight: 500; }
.title-4 { font-size: 14px; line-height: 20px; font-weight: 500; }
.title-5 { font-size: 12px; line-height: 16px; font-weight: 500; }
.body-1 { font-size: 16px; line-height: 24px; font-weight: 600; }
.body-2 { font-size: 16px; line-height: 24px; font-weight: 500; }
.body-3 { font-size: 16px; line-height: 24px; font-weight: 400; }
.body-4 { font-size: 14px; line-height: 20px; font-weight: 600; }
.body-5 { font-size: 14px; line-height: 20px; font-weight: 500; }
.body-6 { font-size: 14px; line-height: 20px; font-weight: 400; }
.body-7 { font-size: 18px; line-height: 28px; font-weight: 400; }
.caption-1 { font-size: 14px; line-height: 20px; font-weight: 500; }
.caption-2 { font-size: 14px; line-height: 20px; font-weight: 400; }
.caption-3 { font-size: 12px; line-height: 16px; font-weight: 600; }
.caption-4 { font-size: 12px; line-height: 16px; font-weight: 500; }
.caption-5 { font-size: 12px; line-height: 16px; font-weight: 400; }

/* títulos que crescem com a tela */
.titulo-pagina { font-size: 36px; line-height: 40px; font-weight: 600; letter-spacing: -0.015em; }
.titulo-secao { font-size: 30px; line-height: 36px; font-weight: 600; letter-spacing: -0.01em; }
@media (min-width: 768px) {
  .titulo-pagina { font-size: 48px; line-height: 48px; letter-spacing: -0.02em; }
  .titulo-secao { font-size: 36px; line-height: 40px; letter-spacing: -0.015em; }
}
@media (min-width: 1024px) {
  .titulo-pagina.grande { font-size: 60px; line-height: 60px; }
  .titulo-secao { font-size: 48px; line-height: 48px; letter-spacing: -0.02em; }
}
.suave { color: var(--tinta-2); }

/* ---------- botões ---------- */
.botao {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-75);
  padding: var(--s-75) var(--s-100);
  font-size: 16px; line-height: 24px; font-weight: 600;
  border-radius: var(--r-lg); border: 1px solid transparent;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background-color .3s var(--curva), color .3s var(--curva), border-color .3s var(--curva), transform .3s var(--curva);
}
.botao:active { transform: scale(0.98); }
.botao svg { width: 20px; height: 20px; flex: none; fill: currentColor; }
.botao-lg { font-size: 18px; line-height: 28px; }
.botao-sm { font-size: 14px; line-height: 20px; }
.botao-primario { background: var(--teal); color: var(--branco); }
.botao-primario:hover { background: var(--teal-escuro); }
.botao-claro { background: var(--branco); color: var(--teal); }
.botao-claro:hover { background: var(--nevoa); }
.botao-contorno { background: transparent; color: var(--teal); border-color: var(--linha); }
.botao-contorno:hover { border-color: var(--teal); background: var(--branco); }
.botao-contorno-claro { background: transparent; color: var(--branco); border-color: rgba(255, 255, 255, .4); }
.botao-contorno-claro:hover { border-color: var(--branco); background: rgba(255, 255, 255, .08); }

.link-seta {
  display: inline-flex; align-items: center; gap: var(--s-75);
  color: var(--teal); font-weight: 600; text-decoration: none;
  border-bottom: 1px solid var(--linha); padding-bottom: var(--s-25);
  transition: border-color .3s var(--curva);
}
.link-seta:hover { border-color: var(--teal); }
.link-seta svg { width: 16px; height: 16px; fill: currentColor; transition: transform .3s var(--curva); }
.link-seta:hover svg { transform: translate(2px, -2px); }

/* ---------- navegação flutuante ---------- */
.nav {
  position: fixed; top: var(--s-100); left: 0; right: 0; z-index: 200;
  display: flex; justify-content: center; padding: 0 var(--s-100);
  pointer-events: none;
}
.nav-barra {
  pointer-events: auto;
  display: flex; align-items: center; gap: var(--s-300);
  width: 100%; max-width: var(--largura);
  padding: var(--s-75) var(--s-75) var(--s-75) var(--s-200);
  background: rgba(39, 66, 66, .92);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--r-2xl);
  box-shadow: 0 8px 24px -12px rgba(16, 32, 32, .45);
}
@media (min-width: 1100px) { .nav-barra { width: auto; } }
.nav-marca { display: block; line-height: 0; flex: none; border-radius: var(--r-lg); }
.nav-marca img { height: 40px; width: auto; }
.nav-links { display: none; gap: var(--s-50); align-items: center; }
.nav-links a {
  color: var(--sobre-teal-2); text-decoration: none;
  font-size: 14px; line-height: 20px; font-weight: 500;
  padding: var(--s-75) var(--s-100); border-radius: var(--r-lg);
  transition: color .3s var(--curva), background-color .3s var(--curva);
}
.nav-links a:hover { color: var(--branco); background: rgba(255, 255, 255, .08); }
.nav-links a[aria-current="page"] { color: var(--branco); background: rgba(255, 255, 255, .12); }
.nav-acao { display: none; margin-left: auto; }
.nav-botao-menu {
  margin-left: auto; display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border: 0; background: transparent; color: var(--branco);
  border-radius: var(--r-lg); cursor: pointer;
}
.nav-botao-menu:hover { background: rgba(255, 255, 255, .08); }
.nav-botao-menu span { position: relative; display: block; width: 20px; height: 14px; }
.nav-botao-menu span::before, .nav-botao-menu span::after {
  content: ''; position: absolute; left: 0; right: 0; height: 2px; border-radius: 2px;
  background: currentColor; transition: transform .5s var(--curva);
}
.nav-botao-menu span::before { top: 2px; }
.nav-botao-menu span::after { bottom: 2px; }
.menu-aberto .nav-botao-menu span::before { transform: translateY(4px) rotate(45deg); }
.menu-aberto .nav-botao-menu span::after { transform: translateY(-4px) rotate(-45deg); }

@media (min-width: 1100px) {
  .nav-links { display: flex; }
  .nav-acao { display: inline-flex; margin-left: var(--s-200); }
  .nav-botao-menu { display: none; }
}

/* painel do menu no celular */
.menu-painel {
  position: fixed; inset: 0; z-index: 150;
  background: rgba(39, 66, 66, .97);
  -webkit-backdrop-filter: blur(24px); backdrop-filter: blur(24px);
  padding: 104px var(--s-300) var(--s-400);
  display: flex; flex-direction: column; gap: var(--s-400);
  opacity: 0; visibility: hidden;
  transition: opacity .3s var(--curva), visibility 0s linear .3s;
  overflow-y: auto;
}
.menu-aberto .menu-painel { opacity: 1; visibility: visible; transition: opacity .3s var(--curva), visibility 0s; }
.menu-painel ul { display: flex; flex-direction: column; }
.menu-painel li { opacity: 0; transform: translateY(24px); transition: opacity .5s var(--curva), transform .5s var(--curva); }
.menu-aberto .menu-painel li { opacity: 1; transform: none; }
.menu-painel li a {
  display: block; padding: var(--s-100) 0; color: var(--branco); text-decoration: none;
  font-size: 24px; line-height: 32px; font-weight: 600; letter-spacing: -0.01em;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.menu-painel li a[aria-current="page"] { color: var(--ocre); }
.menu-painel .botao { width: 100%; }
.menu-painel-rodape { margin-top: auto; color: var(--sobre-teal-2); }
.menu-painel-rodape a { color: var(--branco); }
body.menu-aberto { overflow: hidden; }
@media (min-width: 1100px) { .menu-painel { display: none; } }

/* ---------- cabeçalho de páginas internas ---------- */
.topo { padding: 128px 0 var(--s-600); }
@media (min-width: 768px) { .topo { padding: 160px 0 var(--s-700); } }
.topo .titulo-pagina { max-width: 680px; }
.topo p { max-width: 680px; margin-top: var(--s-200); }
.topo .botao { margin-top: var(--s-300); }
.trilha { display: flex; gap: var(--s-75); margin-bottom: var(--s-200); color: var(--tinta-2); }
.trilha a { color: var(--tinta-2); text-decoration: none; }
.trilha a:hover { color: var(--teal); text-decoration: underline; }

/* ---------- seções ---------- */
.secao { padding: var(--s-700) 0; }
@media (min-width: 768px) { .secao { padding: var(--s-900) 0; } }
.secao-nevoa { background: var(--nevoa); }
.secao-cab { max-width: 680px; margin-bottom: var(--s-500); }
.secao-cab p { margin-top: var(--s-200); }
@media (min-width: 768px) { .secao-cab { margin-bottom: var(--s-600); } }

/* ---------- capas de livro (objeto físico) ---------- */
.capa {
  position: relative; aspect-ratio: 3 / 4; overflow: hidden;
  border-radius: var(--r-sm) var(--r) var(--r) var(--r-sm);
  background: var(--nevoa-forte);
  box-shadow: 0 1px 1px rgba(16, 32, 32, .12), 0 12px 24px -12px rgba(16, 32, 32, .45);
}
.capa img { width: 100%; height: 100%; object-fit: cover; }
.capa::after {
  /* lombada: leve sombra à esquerda, como um livro de verdade */
  content: ''; position: absolute; inset: 0; pointer-events: none;
  box-shadow: inset 3px 0 0 rgba(255, 255, 255, .18), inset 6px 0 6px -4px rgba(0, 0, 0, .25);
}

/* ---------- chamada final em bloco teal ---------- */
.chamada {
  background: var(--teal); color: var(--branco); border-radius: var(--r-3xl);
  padding: var(--s-500) var(--s-300);
  display: grid; gap: var(--s-400); align-items: center;
}
.chamada h2 { max-width: 680px; }
.chamada p { color: var(--sobre-teal-2); max-width: 560px; margin-top: var(--s-200); }
.chamada-acoes { display: flex; flex-wrap: wrap; gap: var(--s-100); }
@media (max-width: 559px) { .chamada-acoes .botao { width: 100%; } }
@media (min-width: 900px) {
  .chamada { grid-template-columns: 1fr auto; padding: var(--s-700); }
  .chamada-acoes { flex-direction: column; align-items: stretch; }
}

/* ---------- rodapé ---------- */
.rodape { background: var(--teal); color: var(--sobre-teal-2); padding: var(--s-700) 0 var(--s-400); }
.rodape-grade { display: grid; gap: var(--s-500); }
@media (min-width: 768px) { .rodape-grade { grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--s-400); } }
.rodape-marca img { width: 144px; height: 144px; margin: calc(var(--s-200) * -1) 0 var(--s-75) calc(var(--s-200) * -1); }
.rodape-marca p { max-width: 320px; }
.rodape h2 { color: var(--branco); margin-bottom: var(--s-200); }
.rodape li + li { margin-top: var(--s-75); }
.rodape a { color: var(--sobre-teal-2); text-decoration: none; transition: color .3s var(--curva); }
.rodape a:hover { color: var(--branco); text-decoration: underline; }
.rodape-base {
  margin-top: var(--s-600); padding-top: var(--s-300); border-top: 1px solid rgba(255, 255, 255, .12);
  display: flex; flex-wrap: wrap; gap: var(--s-100) var(--s-300); justify-content: space-between;
}
@media (max-width: 767px) { .rodape-base { padding-bottom: var(--s-800); } }

/* ---------- botão fixo de orçamento ---------- */
.zap {
  position: fixed; right: var(--s-200); bottom: var(--s-200); z-index: 120;
  display: inline-flex; align-items: center; gap: var(--s-75);
  padding: var(--s-100) var(--s-200);
  background: var(--teal); color: var(--branco); text-decoration: none;
  font-size: 16px; line-height: 24px; font-weight: 600;
  border-radius: var(--r-full);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .5), 0 12px 24px -8px rgba(16, 32, 32, .5);
  transition: background-color .3s var(--curva), transform .5s var(--curva), opacity .3s var(--curva);
}
.zap:hover { background: var(--teal-escuro); }
.zap:active { transform: scale(0.98); }
.zap svg { width: 24px; height: 24px; fill: currentColor; }
.zap.oculto { opacity: 0; transform: translateY(16px); pointer-events: none; }
.menu-aberto .zap { opacity: 0; pointer-events: none; }

/* ---------- campo de busca ---------- */
.busca { position: relative; }
.busca svg { position: absolute; left: var(--s-200); top: 50%; width: 20px; height: 20px; transform: translateY(-50%); fill: var(--tinta-2); pointer-events: none; }
.busca input {
  width: 100%; height: 48px; padding: var(--s-100) var(--s-200) var(--s-100) var(--s-600);
  font: inherit; font-size: 16px; color: var(--tinta);
  background: var(--branco); border: 1px solid var(--linha); border-radius: var(--r-xl);
  transition: border-color .3s var(--curva), box-shadow .3s var(--curva);
}
.busca input::placeholder { color: #7A8888; }
.busca input:hover { border-color: #B9C7C6; }
.busca input:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(39, 66, 66, .14); }

/* ---------- surgimento ao rolar ---------- */
.js .revela { opacity: 0; transform: translateY(32px); transition: opacity .7s var(--curva), transform .7s var(--curva); }
.js .revela.visivel { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; scroll-behavior: auto !important; }
  .js .revela { transform: none; }
  .menu-painel li { transform: none; }
}