:root {
  /* Cores Principais - Paleta Premium SIEG (Inspirada no Azul corporativo escuro e vibrante) */
  --color-primary: #001fdb;
  --color-primary-light: #435bfa;
  --color-primary-dark: #001180;
  
  /* Cores de Fundo - Modo Light */
  --bg-body: #f4f6fc;
  --bg-surface: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.7);
  
  /* Cores de Texto - Modo Light */
  --text-primary: #0a0e27;
  --text-secondary: #5a628a;
  --text-muted: #8d95bb;
  
  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, #0088ff 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.4) 100%);
  
  /* Sombras (Premium e Glassmorphism) */
  --shadow-sm: 0 4px 16px 0 rgba(14, 16, 22, 0.05);
  --shadow-md: 0 8px 32px 0 rgba(14, 16, 22, 0.1);
  --shadow-lg: 0 16px 48px 0 rgba(14, 16, 22, 0.15);
  --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
  
  /* Bordas */
  --border-glass: 1px solid rgba(255, 255, 255, 0.18);
  --border-light: 1px solid rgba(0, 0, 0, 0.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  /* Tipografia */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  
  /* Transições */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Suporte simplificado ao Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-body: #0d1117;
    --bg-surface: #161b22;
    --bg-glass: rgba(22, 27, 34, 0.7);
    
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    
    --gradient-glass: linear-gradient(135deg, rgba(30, 35, 45, 0.9) 0%, rgba(20, 25, 30, 0.4) 100%);
    
    --border-glass: 1px solid rgba(255, 255, 255, 0.05);
    --border-light: 1px solid rgba(255, 255, 255, 0.1);
    
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  }
}