/**
 * ============================================================================
 * SIGL - DESIGN TOKENS
 * Sistema Integrado de Gestão Legislativa
 * ============================================================================
 * 
 * Este arquivo centraliza todas as variáveis de design do sistema.
 * NUNCA hardcode cores, espaçamentos ou tipografia diretamente nos componentes.
 * Sempre use as variáveis definidas aqui.
 * 
 * Autor: IntGest
 * Versão: 1.0.0
 * Data: 2025-12-14
 * ============================================================================
 */

:root {
  /* ==========================================================================
     PALETA DE CORES - PRIMARY (Teal/Cyan - Identidade Visual)
     ========================================================================== */
  --color-primary-50: #e6f7f9;
  --color-primary-100: #b3e5ec;
  --color-primary-200: #80d3df;
  --color-primary-300: #4dc1d2;
  --color-primary-400: #1aafc5;
  --color-primary-500: #198da8; /* COR PRINCIPAL */
  --color-primary-600: #147188;
  --color-primary-700: #0f5568;
  --color-primary-800: #0a3948;
  --color-primary-900: #051d28;
  
  /* Atalhos semânticos para Primary */
  --color-primary: var(--color-primary-500);
  --color-primary-light: var(--color-primary-50);
  --color-primary-dark: var(--color-primary-700);
  --color-primary-hover: var(--color-primary-600);
  --color-primary-active: var(--color-primary-700);

  /* ==========================================================================
     PALETA DE CORES - SECONDARY (Slate/Gray - Neutros)
     ========================================================================== */
  --color-secondary-50: #f8fafc;
  --color-secondary-100: #f1f5f9;
  --color-secondary-200: #e2e8f0;
  --color-secondary-300: #cbd5e1;
  --color-secondary-400: #94a3b8;
  --color-secondary-500: #64748b;
  --color-secondary-600: #475569;
  --color-secondary-700: #334155;
  --color-secondary-800: #1e293b;
  --color-secondary-900: #0f172a;
  
  --color-secondary: var(--color-secondary-500);
  --color-secondary-light: var(--color-secondary-100);
  --color-secondary-dark: var(--color-secondary-700);

  /* ==========================================================================
     PALETA DE CORES - SUCCESS (Verde)
     ========================================================================== */
  --color-success-50: #ecfdf5;
  --color-success-100: #d1fae5;
  --color-success-200: #a7f3d0;
  --color-success-300: #6ee7b7;
  --color-success-400: #34d399;
  --color-success-500: #10b981;
  --color-success-600: #059669;
  --color-success-700: #047857;
  --color-success-800: #065f46;
  --color-success-900: #064e3b;
  
  --color-success: var(--color-success-500);
  --color-success-light: var(--color-success-100);
  --color-success-dark: var(--color-success-700);

  /* ==========================================================================
     PALETA DE CORES - DANGER (Vermelho)
     ========================================================================== */
  --color-danger-50: #fef2f2;
  --color-danger-100: #fee2e2;
  --color-danger-200: #fecaca;
  --color-danger-300: #fca5a5;
  --color-danger-400: #f87171;
  --color-danger-500: #ef4444;
  --color-danger-600: #dc2626;
  --color-danger-700: #b91c1c;
  --color-danger-800: #991b1b;
  --color-danger-900: #7f1d1d;
  
  --color-danger: var(--color-danger-500);
  --color-danger-light: var(--color-danger-100);
  --color-danger-dark: var(--color-danger-700);

  /* ==========================================================================
     PALETA DE CORES - WARNING (Âmbar/Amarelo)
     ========================================================================== */
  --color-warning-50: #fffbeb;
  --color-warning-100: #fef3c7;
  --color-warning-200: #fde68a;
  --color-warning-300: #fcd34d;
  --color-warning-400: #fbbf24;
  --color-warning-500: #f59e0b;
  --color-warning-600: #d97706;
  --color-warning-700: #b45309;
  --color-warning-800: #92400e;
  --color-warning-900: #78350f;
  
  --color-warning: var(--color-warning-500);
  --color-warning-light: var(--color-warning-100);
  --color-warning-dark: var(--color-warning-700);

  /* ==========================================================================
     PALETA DE CORES - INFO (Azul)
     ========================================================================== */
  --color-info-50: #eff6ff;
  --color-info-100: #dbeafe;
  --color-info-200: #bfdbfe;
  --color-info-300: #93c5fd;
  --color-info-400: #60a5fa;
  --color-info-500: #3b82f6;
  --color-info-600: #2563eb;
  --color-info-700: #1d4ed8;
  --color-info-800: #1e40af;
  --color-info-900: #1e3a8a;
  
  --color-info: var(--color-info-500);
  --color-info-light: var(--color-info-100);
  --color-info-dark: var(--color-info-700);

  /* ==========================================================================
     PALETA DE CORES - NEUTRAL (Cinzas para texto e backgrounds)
     ========================================================================== */
  --color-neutral-50: #fafafa;
  --color-neutral-100: #f4f4f5;
  --color-neutral-200: #e4e4e7;
  --color-neutral-300: #d4d4d8;
  --color-neutral-400: #a1a1aa;
  --color-neutral-500: #71717a;
  --color-neutral-600: #52525b;
  --color-neutral-700: #3f3f46;
  --color-neutral-800: #27272a;
  --color-neutral-900: #18181b;

  /* ==========================================================================
     CORES FUNCIONAIS (Semânticas)
     ========================================================================== */
  /* Textos */
  --color-text-primary: var(--color-neutral-900);
  --color-text-secondary: var(--color-neutral-600);
  --color-text-muted: var(--color-neutral-400);
  --color-text-inverse: #ffffff;
  --color-text-link: var(--color-primary-600);
  --color-text-link-hover: var(--color-primary-700);
  
  /* Backgrounds */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: var(--color-neutral-50);
  --color-bg-tertiary: var(--color-neutral-100);
  --color-bg-inverse: var(--color-neutral-900);
  --color-bg-overlay: rgba(0, 0, 0, 0.5);
  
  /* Bordas */
  --color-border-light: var(--color-neutral-200);
  --color-border-default: var(--color-neutral-300);
  --color-border-dark: var(--color-neutral-400);
  --color-border-focus: var(--color-primary-500);

  /* ==========================================================================
     TIPOGRAFIA
     ========================================================================== */
  /* Font Families */
  --font-family-sans: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Mono', 'Droid Sans Mono', monospace;
  
  /* Font Sizes - Escala Modular (1.25 ratio) */
  --font-size-xs: 0.75rem;     /* 12px */
  --font-size-sm: 0.875rem;    /* 14px */
  --font-size-base: 1rem;      /* 16px */
  --font-size-lg: 1.125rem;    /* 18px */
  --font-size-xl: 1.25rem;     /* 20px */
  --font-size-2xl: 1.5rem;     /* 24px */
  --font-size-3xl: 1.875rem;   /* 30px */
  --font-size-4xl: 2.25rem;    /* 36px */
  --font-size-5xl: 3rem;       /* 48px */
  --font-size-6xl: 3.75rem;    /* 60px */
  
  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* Line Heights */
  --line-height-none: 1;
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* Letter Spacing */
  --letter-spacing-tighter: -0.05em;
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0em;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;
  --letter-spacing-widest: 0.1em;

  /* ==========================================================================
     ESPAÇAMENTO - Sistema de 4px
     ========================================================================== */
  --spacing-0: 0;
  --spacing-px: 1px;
  --spacing-0-5: 0.125rem;   /* 2px */
  --spacing-1: 0.25rem;      /* 4px */
  --spacing-1-5: 0.375rem;   /* 6px */
  --spacing-2: 0.5rem;       /* 8px */
  --spacing-2-5: 0.625rem;   /* 10px */
  --spacing-3: 0.75rem;      /* 12px */
  --spacing-3-5: 0.875rem;   /* 14px */
  --spacing-4: 1rem;         /* 16px */
  --spacing-5: 1.25rem;      /* 20px */
  --spacing-6: 1.5rem;       /* 24px */
  --spacing-7: 1.75rem;      /* 28px */
  --spacing-8: 2rem;         /* 32px */
  --spacing-9: 2.25rem;      /* 36px */
  --spacing-10: 2.5rem;      /* 40px */
  --spacing-11: 2.75rem;     /* 44px */
  --spacing-12: 3rem;        /* 48px */
  --spacing-14: 3.5rem;      /* 56px */
  --spacing-16: 4rem;        /* 64px */
  --spacing-20: 5rem;        /* 80px */
  --spacing-24: 6rem;        /* 96px */
  --spacing-28: 7rem;        /* 112px */
  --spacing-32: 8rem;        /* 128px */

  /* ==========================================================================
     BORDAS
     ========================================================================== */
  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.125rem;     /* 2px */
  --radius-default: 0.25rem; /* 4px */
  --radius-md: 0.375rem;     /* 6px */
  --radius-lg: 0.5rem;       /* 8px */
  --radius-xl: 0.75rem;      /* 12px */
  --radius-2xl: 1rem;        /* 16px */
  --radius-3xl: 1.5rem;      /* 24px */
  --radius-full: 9999px;
  
  /* Border Widths */
  --border-width-0: 0;
  --border-width-1: 1px;
  --border-width-2: 2px;
  --border-width-4: 4px;
  --border-width-8: 8px;

  /* ==========================================================================
     SOMBRAS
     ========================================================================== */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-default: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
  --shadow-none: 0 0 #0000;
  
  /* Sombras coloridas para estados de foco */
  --shadow-primary: 0 0 0 3px rgba(25, 141, 168, 0.2);
  --shadow-success: 0 0 0 3px rgba(16, 185, 129, 0.2);
  --shadow-danger: 0 0 0 3px rgba(239, 68, 68, 0.2);
  --shadow-warning: 0 0 0 3px rgba(245, 158, 11, 0.2);
  --shadow-info: 0 0 0 3px rgba(59, 130, 246, 0.2);

  /* ==========================================================================
     TRANSIÇÕES E ANIMAÇÕES
     ========================================================================== */
  /* Durations */
  --duration-75: 75ms;
  --duration-100: 100ms;
  --duration-150: 150ms;
  --duration-200: 200ms;
  --duration-300: 300ms;
  --duration-500: 500ms;
  --duration-700: 700ms;
  --duration-1000: 1000ms;
  
  /* Easing Functions */
  --ease-linear: linear;
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Transições padrão */
  --transition-fast: all var(--duration-150) var(--ease-in-out);
  --transition-normal: all var(--duration-200) var(--ease-in-out);
  --transition-slow: all var(--duration-300) var(--ease-in-out);
  --transition-colors: color var(--duration-150) var(--ease-in-out), 
                       background-color var(--duration-150) var(--ease-in-out), 
                       border-color var(--duration-150) var(--ease-in-out);

  /* ==========================================================================
     Z-INDEX (Layers)
     ========================================================================== */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;

  /* ==========================================================================
     BREAKPOINTS (para referência em media queries)
     ========================================================================== */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;

  /* ==========================================================================
     CONTAINER WIDTHS
     ========================================================================== */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

/* =============================================================================
   DARK MODE (Preparado para implementação futura)
   ============================================================================= */
/* @media (prefers-color-scheme: dark) {
  :root.auto-dark {
    --color-text-primary: var(--color-neutral-100);
    --color-text-secondary: var(--color-neutral-300);
    --color-text-muted: var(--color-neutral-500);
    
    --color-bg-primary: var(--color-neutral-900);
    --color-bg-secondary: var(--color-neutral-800);
    --color-bg-tertiary: var(--color-neutral-700);
    
    --color-border-light: var(--color-neutral-700);
    --color-border-default: var(--color-neutral-600);
    --color-border-dark: var(--color-neutral-500);
  }
} */

/* Classe manual para dark mode */
/* .dark {
  --color-text-primary: var(--color-neutral-100);
  --color-text-secondary: var(--color-neutral-300);
  --color-text-muted: var(--color-neutral-500);
  
  --color-bg-primary: var(--color-neutral-900);
  --color-bg-secondary: var(--color-neutral-800);
  --color-bg-tertiary: var(--color-neutral-700);
  
  --color-border-light: var(--color-neutral-700);
  --color-border-default: var(--color-neutral-600);
  --color-border-dark: var(--color-neutral-500);
} */