/* Variáveis Principais de Cores Vivas */
:root {
  --fonte-tamanho-base: 1rem;
  --cor-fundo: #f0fdf4;
  --cor-card: #ffffff;
  --cor-texto: #0f172a;
  --cor-destaque: #6366f1;
}

html {
  font-size: var(--fonte-tamanho-base);
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: var(--cor-fundo);
  color: var(--cor-texto);
  line-height: 1.6;
  transition: background-color 0.3s, color 0.3s;
}

/* Atalho Acessível */
.skip-link {
  position: absolute;
  top: -50px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px;
  z-index: 1000;
}
.skip-link:focus {
  top: 0;
}

/* Foco em Teclas */
button:focus, a:focus {
  outline: 4px solid #f59e0b !important;
  outline-offset: 2px;
}

/* Header com Cores Vivas */
.header-custom {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  color: #ffffff;
}
.header-title {
  color: #ffffff;
}

/* Estilo dos Botões de Acessibilidade */
.btn-fonte {
  background-color: #ffffff;
  color: #4f46e5;
  font-weight: bold;
  border: none;
}
.btn-fonte:hover {
  background-color: #e0e7ff;
}

.btn-contraste {
  background-color: #fbbf24;
  color: #000000;
  font-weight: bold;
  border: none;
}
.btn-contraste:hover {
  background-color: #f59e0b;
  color: #ffffff;
}

.btn-voz {
  background-color: #10b981;
  color: #ffffff;
  font-weight: bold;
  border: none;
}
.btn-voz:hover {
  background-color: #059669;
}

.btn-voz-parar {
  background-color: #ef4444;
  color: #ffffff;
  font-weight: bold;
  border: none;
}
.btn-voz-parar:hover {
  background-color: #dc2626;
}

/* Hero Banner Gradiente Vibrante */
.hero-banner {
  background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
}

/* Estilização das Abas (Navegação) */
.nav-pills .nav-link {
  font-weight: bold;
  color: #334155;
  background-color: #e2e8f0;
  border: 2px solid #cbd5e1;
  transition: all 0.2s ease-in-out;
}

.nav-pills .nav-link:hover {
  background-color: #cbd5e1;
}

.nav-pills .nav-link.active {
  background-color: #4f46e5 !important;
  color: #ffffff !important;
  border-color: #4f46e5 !important;
}

/* Caixa de Conteúdo */
.conteudo-box {
  background-color: var(--cor-card);
  border: 2px solid #cbd5e1;
}

.titulo-secao {
  color: #4f46e5;
  border-bottom: 3px solid #06b6d4;
  padding-bottom: 8px;
}

.subtitulo {
  color: #7c3aed;
}

.destaque-card {
  background-color: #f8fafc;
  border-left: 5px solid #06b6d4;
}

/* Tabela Estilizada */
.table-header-custom {
  background-color: #4f46e5;
  color: #ffffff;
}

/* Cards da Aba Proposta */
.card-proposta {
  border: 2px solid #10b981;
  background-color: #ecfdf5;
}

.card-ia {
  border: 2px solid #3b82f6;
  background-color: #eff6ff;
}

/* Rodapé */
.footer-custom {
  background-color: #0f172a;
  color: #ffffff;
}

/* =====================================
   ESTILO ALTO CONTRASTE (PRETO E AMARELO)
   ===================================== */
body.alto-contraste {
  background-color: #000000 !important;
  color: #ffffff !important;
}

body.alto-contraste .header-custom,
body.alto-contraste .footer-custom,
body.alto-contraste .conteudo-box,
body.alto-contraste .hero-banner {
  background: #000000 !important;
  color: #ffffff !important;
  border: 3px solid #ffff00 !important;
}

body.alto-contraste .nav-pills .nav-link {
  background-color: #000000 !important;
  color: #ffffff !important;
  border: 2px solid #ffffff !important;
}

body.alto-contraste .nav-pills .nav-link.active {
  background-color: #ffff00 !important;
  color: #000000 !important;
  border: 2px solid #ffff00 !important;
}

body.alto-contraste .destaque-card,
body.alto-contraste .card-proposta,
body.alto-contraste .card-ia {
  background-color: #000000 !important;
  color: #ffffff !important;
  border: 2px solid #ffff00 !important;
}

body.alto-contraste .titulo-secao,
body.alto-contraste .subtitulo,
body.alto-contraste h4 {
  color: #ffff00 !important;
  border-color: #ffff00 !important;
}

body.alto-contraste .table {
  color: #ffffff !important;
  border-color: #ffffff !important;
}

body.alto-contraste .table-header-custom {
  background-color: #ffff00 !important;
  color: #000000 !important;
}