/**
 * ============================================
 * CASTRO CONTABIL - DESIGN SYSTEM
 * Design Tokens & Variables
 * ============================================
 */

:root {
  /* ========== CORES PRIMÁRIAS ========== */
  --primary: #1e40af;
  --primary-dark: #1e3a8a;
  --primary-light: #3b82f6;
  --primary-lighter: #60a5fa;

  /* ========== CORES SEMÂNTICAS ========== */
  --success: #10b981;
  --success-dark: #059669;
  --success-light: #34d399;
  --success-bg: #ecfdf5;

  --danger: #dc2626;
  --danger-dark: #b91c1c;
  --danger-light: #ef4444;
  --danger-bg: #fef2f2;

  --warning: #f59e0b;
  --warning-dark: #d97706;
  --warning-light: #fbbf24;
  --warning-bg: #fffbeb;

  --info: #3b82f6;
  --info-dark: #2563eb;
  --info-light: #60a5fa;
  --info-bg: #eff6ff;

  /* ========== ESCALA DE CINZAS ========== */
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --black: #000000;

  /* ========== CORES DAS EMPRESAS ========== */
  --empresa-castro: #3b82f6;
  --empresa-castro-bg: #dbeafe;

  --empresa-wikileads: #10b981;
  --empresa-wikileads-bg: #d1fae5;

  --empresa-sevs: #f59e0b;
  --empresa-sevs-bg: #fef3c7;

  --empresa-yuplan: #8b5cf6;
  --empresa-yuplan-bg: #ede9fe;

  /* ========== BACKGROUNDS ========== */
  --bg-base: #f9fafb;
  --bg-card: #ffffff;
  --bg-hover: #f3f4f6;
  --bg-overlay: rgba(0, 0, 0, 0.5);

  /* ========== BORDAS ========== */
  --border-color: #e5e7eb;
  --border-color-dark: #d1d5db;
  --border-width: 1px;

  --border-radius: 8px;
  --border-radius-sm: 4px;
  --border-radius-md: 6px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  --border-radius-full: 9999px;

  /* ========== SOMBRAS ========== */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* ========== TIPOGRAFIA ========== */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  --font-family-mono: 'SF Mono', 'Monaco', 'Consolas', monospace;

  /* Tamanhos */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */

  /* Pesos */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* ========== SPACING ========== */
  --space-0: 0;
  --space-1: 0.25rem;    /* 4px */
  --space-2: 0.5rem;     /* 8px */
  --space-3: 0.75rem;    /* 12px */
  --space-4: 1rem;       /* 16px */
  --space-5: 1.25rem;    /* 20px */
  --space-6: 1.5rem;     /* 24px */
  --space-8: 2rem;       /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */

  /* ========== TRANSIÇÕES ========== */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;

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

  /* ========== LAYOUT ========== */
  --container-max-width: 1280px;
  --navbar-height: 64px;
  --sidebar-width: 280px;

  /* ========== ESPECÍFICOS DO SISTEMA ========== */
  --valor-positivo: var(--success);
  --valor-negativo: var(--danger);
  --status-pendente: var(--warning);
  --status-confirmado: var(--success);
  --status-atrasado: var(--danger);
}

/**
 * ============================================
 * DARK MODE (Preparado para futuro)
 * ============================================
 */
@media (prefers-color-scheme: dark) {
  :root {
    /* Será implementado quando necessário */
  }
}