/* ==========================================================================
   Cathedra — Design System Oficial
   Conforme diretrizes de DESIGN.md:
   - Tipografia: Literata (serif) e Nunito Sans (sans-serif)
   - Estilo plano: sem sombras, sem drop-shadow, sem relevos
   - Paleta: base-100 (#FAF7F0), base-200 (#FFFFFF), base-300 (#DED6C9),
     base-content (#2B1B12), primary (#F2B83F), secondary (#704B1F),
     marrom Cathedra (#160A04)
   - Raios: 0.25rem (4px), 0.5rem (8px), 0.75rem (12px)
   ========================================================================== */

:root {
  /* Tipografia oficial */
  --font-serif: 'Literata', Georgia, serif;
  --font-sans: 'Nunito Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Tokens semânticos de cor (DESIGN.md) */
  --base-100: #faf7f0; /* Canvas principal */
  --base-200: #ffffff; /* Painéis, cartões e campos */
  --base-300: #ded6c9; /* Bordas e linhas divisórias */
  --base-content: #2b1b12; /* Texto principal */

  --primary: #f2b83f; /* Dourado Cathedra para ações e acentos */
  --primary-hover: #e5aa2d;
  --primary-content: #160a04; /* Texto escuro de alto contraste sobre primária */

  --secondary: #704b1f; /* Rótulos e ênfases discretas */
  --secondary-surface: #f4efe6;

  --cathedra-dark: #160a04; /* Marrom de identidade Cathedra */
  --cathedra-dark-border: #28170d;
  --cathedra-dark-text: #f4f0e8;

  /* Raios de borda oficiais */
  --radius-sm: 0.25rem; /* 4px: seletores, tags, badges */
  --radius-md: 0.5rem; /* 8px: botões e campos */
  --radius-lg: 0.75rem; /* 12px: caixas, painéis, cartões */
}

/* Tipografia */
.font-serif {
  font-family: var(--font-serif);
  font-feature-settings:
    'kern' 1,
    'liga' 1;
}

.font-sans {
  font-family: var(--font-sans);
}

/* Estilo plano rigoroso: sem sombras ou drop-shadows */
*,
*::before,
*::after {
  box-shadow: none !important;
  text-shadow: none !important;
}

html {
  scroll-behavior: smooth;
  background-color: var(--base-100);
}

body {
  font-family: var(--font-sans);
  background-color: var(--base-100);
  color: var(--base-content);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Seleção editorial de texto */
::selection {
  background-color: #ebdcb9;
  color: #160a04;
}

/* Scrollbar plano e discreto */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #faf7f0;
}

::-webkit-scrollbar-thumb {
  background: #ded6c9;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #c7bcab;
}

/* Botões de Ação Primária (Dourado Cathedra + Marrom Escuro) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--primary);
  color: var(--primary-content);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9375rem;
  line-height: 1.25;
  border: 1px solid #d99f2a;
  border-radius: var(--radius-md);
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease;
}

.btn-primary.btn-header {
  padding: 0.4375rem 0.875rem;
  font-size: 0.8125rem;
  border-radius: var(--radius-md);
}

@media (min-width: 640px) {
  .btn-primary.btn-header {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  border-color: #c98e1e;
}

.btn-primary:active {
  background-color: #d99f2a;
}

.btn-primary:focus-visible {
  outline: 2px solid var(--cathedra-dark);
  outline-offset: 3px;
}

/* Botão Secundário / Contorno */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--base-200);
  color: var(--base-content);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.875rem;
  line-height: 1.25;
  border: 1px solid var(--base-300);
  border-radius: var(--radius-md);
  padding: 0.625rem 1.25rem;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    border-color 0.15s ease;
}

.btn-secondary:hover {
  background-color: var(--base-100);
  border-color: #c7bcab;
}

.btn-secondary:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
}

/* Botões do Alternador de Abas de Consulta */
.demo-tab-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  border: 1px solid var(--base-300);
  background-color: var(--base-200);
  color: var(--secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.demo-tab-btn:hover {
  background-color: var(--base-100);
  color: var(--base-content);
}

.demo-tab-btn.active {
  background-color: var(--primary);
  color: var(--primary-content);
  border-color: #d99f2a;
  font-weight: 700;
}

.demo-tab-btn:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

/* Transições nas abas */
.tab-panel {
  display: block;
}

.tab-panel.hidden {
  display: none;
}

/* Accordion de Perguntas Frequentes (FAQ) */
.faq-item {
  background-color: var(--base-200);
  border: 1px solid var(--base-300);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.faq-item:hover {
  border-color: #c7bcab;
}

.faq-trigger {
  width: 100%;
  padding: 1.125rem 1.25rem;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: transparent;
  border: none;
  color: var(--base-content);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.15s ease;
}

.faq-trigger:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: -2px;
}

.faq-trigger .faq-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--secondary);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
}

.faq-content {
  padding: 0 1.25rem 1.25rem 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: #4a382c;
  border-top: 1px solid var(--base-300);
  padding-top: 0.875rem;
}

.faq-content.hidden {
  display: none;
}

/* Tags, Badges e Seletores com raio 0.25rem (4px) */
.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

/* Cartões com raio 0.75rem (12px) e borda plana */
.card-flat {
  background-color: var(--base-200);
  border: 1px solid var(--base-300);
  border-radius: var(--radius-lg);
}

/* ==========================================================================
   Logomarca Oficial Cathedra — Proporções e Enquadramento Editorial
   ========================================================================== */
.brand-logo-hor-wrap {
  position: relative;
  height: 38px;
  width: 145px;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 480px) {
  .brand-logo-hor-wrap {
    height: 44px;
    width: 175px;
  }
}

@media (min-width: 640px) {
  .brand-logo-hor-wrap {
    height: 52px;
    width: 215px;
  }
}

.brand-logo-hor-wrap .brand-logo-img {
  width: 300px;
  height: 300px;
  max-width: none;
  object-fit: contain;
  display: block;
  pointer-events: none;
  user-select: none;
}

@media (min-width: 480px) {
  .brand-logo-hor-wrap .brand-logo-img {
    width: 360px;
    height: 360px;
  }
}

@media (min-width: 640px) {
  .brand-logo-hor-wrap .brand-logo-img {
    width: 440px;
    height: 440px;
  }
}

.brand-logo-hor-light .brand-logo-img {
  mix-blend-mode: multiply;
}

.brand-logo-hor-dark .brand-logo-img {
  filter: contrast(1.02);
}