/* Reset simples */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-page: #fbfaf8;
  --bg-surface: #ffffff;
  --text-main: #121212;       /* Grafite escuro / quase preto */
  --text-body: #1a1a1a;       /* Corpo principal padronizado */
  --text-muted: #333333;      /* Textos auxiliares mais escuros */
  --border-color: #ded9d0;
  --accent-color: #8c1d18;    /* Tom clássico de laca */
  --max-width: 800px;         /* Coluna reduzida para leitura confortável */
  --font-serif: "Georgia", "Cambria", "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

body {
  background-color: var(--bg-page);
  color: var(--text-body);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}


body, p, h1, h2, h3, .lead, .section-desc, .academic-box, .caption-subtle, .notice-box, .card-content, figcaption, footer, nav, a {
  font-family: Georgia, "Times New Roman", serif;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Header ===== */
header {
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 18px;
  padding-bottom: 18px;
}

.brand {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: 0.02em;
}

nav {
  display: flex;
  align-items: center;      /* Centraliza verticalmente itens e separador */
  gap: 18px;
}

nav a {
  color: #1f1f1f;           /* Menu mais escuro, legível */
  text-decoration: none;
  font-size: 0.95rem;
}

nav a:hover {
  color: var(--accent-color);
}

/* Separador vertical entre navegação e idioma */
.nav-separator {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1;
  margin: 0 4px;
}

/* ===== Conteúdo ===== */
main {
  padding-top: 48px;
  padding-bottom: 80px;
}

section {
  margin-bottom: 64px;
}

.tag-status {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1 {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  line-height: 1.25;
  color: var(--text-main);
  font-weight: normal;
  margin-bottom: 24px;
}

.lead {
  font-size: 1.15rem;
  color: var(--text-main);
  margin-bottom: 16px;
}

p {
  margin-bottom: 16px;
}

/* Imagem de destaque */
.featured-image {
  margin: 28px 0;
}

.featured-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.featured-image figcaption {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 8px;
  font-style: italic;
}

/* Nota de desenvolvimento */
.notice-box {
  background-color: var(--bg-surface);
  border-left: 3px solid var(--accent-color);
  padding: 16px 20px;
  font-size: 0.95rem;
  color: var(--text-body);
  border-radius: 0 4px 4px 0;
  margin-top: 24px;
}

/* Títulos de seção */
h2 {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: normal;
  color: var(--text-main);
  margin-bottom: 12px;
}

.section-desc {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* Vídeo responsivo (16:9) */
.video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 4px;
  background-color: #000;
  border: 1px solid var(--border-color);
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.caption-subtle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Lista de eixos */
.cards-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  display: flex;
  gap: 20px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 20px;
}

.card-num {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--accent-color);
  font-weight: bold;
}

.card-content h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: normal;
  color: var(--text-main);
  margin-bottom: 8px;
}

.card-content p {
  font-size: 0.95rem;
  margin-bottom: 0;
  color: var(--text-body);
}

/* Caixa de pesquisa / autoria */
.academic-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 24px;
}

.academic-box p {
  font-size: 0.95rem;
}

/* Links de contato centralizados no rodapé */
.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;  /* Centraliza horizontalmente */
  gap: 18px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.contact-links a {
  font-size: 0.9rem;
  color: var(--accent-color);
  text-decoration: none;
}

.contact-links a:hover {
  text-decoration: underline;
}

/* ===== Rodapé ===== */
footer {
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  padding: 28px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
}

/* ===== Mobile ===== */
@media (max-width: 600px) {
  h1 {
    font-size: 1.9rem;      /* Título maior no mobile */
  }

  .card {
    flex-direction: column;
    gap: 8px;
  }

  /* Header: empilha marca e nav, centraliza */
  .header-container {
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    padding-bottom: 16px;
  }

  /* Menu horizontal com quebra, centralizado */
  .nav-menu {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 12px;
    font-size: 0.95rem;     /* Fonte maior para leitura */
  }

  .nav-menu a {
    padding: 6px 0;         /* Maior área de toque */
  }

  /* Separador visível e alinhado no mobile */
  .nav-separator {
    display: inline-block;
    margin: 0 6px;
  }
}