/*
Theme Name: Célula de Ensino
Theme URI: https://celuladeensino.com.br
Author: Manus AI
Author URI: https://manus.im
Description: Tema WordPress moderno, responsivo e acessível para plataformas de e-learning, inspirado em grandes plataformas de streaming e educação online. Atende aos requisitos legais brasileiros (LGPD, acessibilidade, etc.).
Version: 1.0.0
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: celula-ensino
Domain Path: /languages
Requires at least: 5.9
Requires PHP: 7.4
*/

/* ========================================
   VARIÁVEIS DE CORES E TIPOGRAFIA
   ======================================== */

:root {
  /* Paleta de Cores */
  --color-primary: #003366;        /* Azul Escuro - Elementos primários */
  --color-secondary: #68C3B7;      /* Verde Água - Destaques */
  --color-accent: #FFA500;         /* Orange - CTAs */
  --color-accent-dark: #FF8C00;    /* Dark Orange - Hover CTAs */
  --color-success: #006400;        /* Dark Green - Sucesso/Conclusão */
  --color-background: #F0FFF0;     /* Honeydew - Fundo */
  --color-text: #333333;           /* Cinza Escuro - Texto principal */
  --color-text-light: #666666;     /* Cinza Médio - Texto secundário */
  --color-border: #CCCCCC;         /* Cinza Claro - Bordas */
  --color-white: #FFFFFF;          /* Branco - Fundo de cards */
  --color-shadow: rgba(0, 0, 0, 0.1);

  /* Tipografia */
  --font-primary: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Open Sans', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Tamanhos de Fonte (Desktop) */
  --font-size-h1: 48px;
  --font-size-h2: 36px;
  --font-size-h3: 24px;
  --font-size-h4: 20px;
  --font-size-body: 16px;
  --font-size-small: 14px;

  /* Espaçamento */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Bordas */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;

  /* Transições */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

/* ========================================
   RESET E ESTILOS GLOBAIS
   ======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-secondary);
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
}

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: var(--font-size-h4); }

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary);
}

/* ========================================
   COMPONENTES REUTILIZÁVEIS
   ======================================== */

/* Botões */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius-md);
  font-family: var(--font-primary);
  font-size: var(--font-size-body);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Cards */
.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-body {
  padding: var(--spacing-lg);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Flex */
.flex {
  display: flex;
  gap: var(--spacing-md);
}

.flex-center {
  justify-content: center;
  align-items: center;
}

.flex-between {
  justify-content: space-between;
  align-items: center;
}

/* ========================================
   LAYOUT PRINCIPAL
   ======================================== */

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* ========================================
   ACESSIBILIDADE
   ======================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible para navegação por teclado */
:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* ========================================
   MEDIA QUERIES
   ======================================== */

@media (max-width: 1199px) {
  :root {
    --font-size-h1: 40px;
    --font-size-h2: 32px;
    --font-size-h3: 20px;
  }

  .grid-4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 767px) {
  :root {
    --font-size-h1: 32px;
    --font-size-h2: 24px;
    --font-size-h3: 18px;
    --font-size-body: 14px;
  }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}