/* =====================================================
   DESIGN SYSTEM V2 - ANTECH O&M
   Sistema de Design Moderno e Profissional
   ===================================================== */

/* =====================================================
   1. DESIGN TOKENS - Variáveis CSS
   ===================================================== */

:root {
  /* ===== CORES - PALETTE PRINCIPAL ===== */
  
  /* Primary - Azul */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;
  
  /* Secondary - Roxo */
  --secondary-50: #faf5ff;
  --secondary-100: #f3e8ff;
  --secondary-200: #e9d5ff;
  --secondary-300: #d8b4fe;
  --secondary-400: #c084fc;
  --secondary-500: #a855f7;
  --secondary-600: #9333ea;
  --secondary-700: #7e22ce;
  --secondary-800: #6b21a8;
  --secondary-900: #581c87;
  
  /* Success - Verde */
  --success-50: #f0fdf4;
  --success-100: #dcfce7;
  --success-200: #bbf7d0;
  --success-300: #86efac;
  --success-400: #4ade80;
  --success-500: #22c55e;
  --success-600: #16a34a;
  --success-700: #15803d;
  --success-800: #166534;
  --success-900: #14532d;
  
  /* Danger - Vermelho */
  --danger-50: #fef2f2;
  --danger-100: #fee2e2;
  --danger-200: #fecaca;
  --danger-300: #fca5a5;
  --danger-400: #f87171;
  --danger-500: #ef4444;
  --danger-600: #dc2626;
  --danger-700: #b91c1c;
  --danger-800: #991b1b;
  --danger-900: #7f1d1d;
  
  /* Warning - Laranja */
  --warning-50: #fff7ed;
  --warning-100: #ffedd5;
  --warning-200: #fed7aa;
  --warning-300: #fdba74;
  --warning-400: #fb923c;
  --warning-500: #f97316;
  --warning-600: #ea580c;
  --warning-700: #c2410c;
  --warning-800: #9a3412;
  --warning-900: #7c2d12;
  
  /* Info - Ciano */
  --info-50: #ecfeff;
  --info-100: #cffafe;
  --info-200: #a5f3fc;
  --info-300: #67e8f9;
  --info-400: #22d3ee;
  --info-500: #06b6d4;
  --info-600: #0891b2;
  --info-700: #0e7490;
  --info-800: #155e75;
  --info-900: #164e63;
  
  /* Neutral - Cinza */
  --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;
  
  /* ===== TYPOGRAPHY ===== */
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;
  
  /* Font Sizes */
  --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 */
  --text-5xl: 3rem;        /* 48px */
  
  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* ===== 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 */
  
  /* ===== BORDERS ===== */
  
  --radius-none: 0;
  --radius-sm: 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-width: 1px;
  --border-width-2: 2px;
  --border-width-4: 4px;
  
  /* ===== SHADOWS ===== */
  
  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
  
  /* ===== TRANSITIONS ===== */
  
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* ===== Z-INDEX SCALE ===== */
  
  --z-0: 0;
  --z-10: 10;
  --z-20: 20;
  --z-30: 30;
  --z-40: 40;
  --z-50: 50;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* ===== BREAKPOINTS (para referência) ===== */
  
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

/* =====================================================
   2. TEMA ESCURO (Dark Mode)
   ===================================================== */

body.dark-theme {
  --gray-50: #111827;
  --gray-100: #1f2937;
  --gray-200: #374151;
  --gray-300: #4b5563;
  --gray-400: #6b7280;
  --gray-500: #9ca3af;
  --gray-600: #d1d5db;
  --gray-700: #e5e7eb;
  --gray-800: #f3f4f6;
  --gray-900: #f9fafb;
  
  background-color: var(--gray-900);
  color: var(--gray-100);
}

body.dark-theme .shadow-sm,
body.dark-theme .shadow-md,
body.dark-theme .shadow-lg {
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
}

/* =====================================================
   3. RESET E BASE STYLES
   ===================================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--gray-900);
  background-color: var(--gray-50);
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* =====================================================
   4. TYPOGRAPHY UTILITIES
   ===================================================== */

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }
.text-5xl { font-size: var(--text-5xl); }

.font-light { font-weight: var(--font-light); }
.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

/* =====================================================
   5. SPACING UTILITIES
   ===================================================== */

.m-0 { margin: var(--space-0); }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-4 { margin: var(--space-4); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }

.p-0 { padding: var(--space-0); }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

/* =====================================================
   6. ANIMAÇÕES E TRANSIÇÕES
   ===================================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.animate-fadeIn {
  animation: fadeIn var(--transition-base) ease-out;
}

.animate-slideInRight {
  animation: slideInRight var(--transition-base) ease-out;
}

.animate-slideInLeft {
  animation: slideInLeft var(--transition-base) ease-out;
}

.animate-scaleIn {
  animation: scaleIn var(--transition-base) ease-out;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Transições suaves */
.transition-all {
  transition: all var(--transition-base);
}

.transition-colors {
  transition: background-color var(--transition-base), 
              border-color var(--transition-base), 
              color var(--transition-base);
}

.transition-transform {
  transition: transform var(--transition-base);
}

/* =====================================================
   7. ACCESSIBILITY
   ===================================================== */

.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 visível para acessibilidade */
*:focus-visible {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}

/* =====================================================
   8. RESPONSIVE UTILITIES
   ===================================================== */

.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

/* =====================================================
   9. GRADIENTES MODERNOS
   ===================================================== */

.gradient-primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
}

.gradient-secondary {
  background: linear-gradient(135deg, var(--secondary-600), var(--secondary-400));
}

.gradient-success {
  background: linear-gradient(135deg, var(--success-600), var(--success-400));
}

.gradient-blue-purple {
  background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
}

.gradient-ocean {
  background: linear-gradient(135deg, var(--primary-500), var(--info-500));
}

.gradient-sunset {
  background: linear-gradient(135deg, var(--warning-500), var(--danger-500));
}

/* =====================================================
   10. GLASSMORPHISM
   ===================================================== */

.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

body.dark-theme .glass {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* =====================================================
   FIM DO DESIGN SYSTEM V2
   ===================================================== */