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

/* ===== CONTAFLOW COLOR PALETTE ===== */
:root {
  /* Primary Colors */
  --cf-primary: #111827;
  --cf-primary-light: #1f2937;
  --cf-primary-dark: #0f172a;

  /* Secondary Colors */
  --cf-secondary: #374151;
  --cf-secondary-light: #4b5563;
  --cf-secondary-dark: #1f2937;

  /* Accent Colors */
  --cf-accent-blue: #3b82f6;
  --cf-accent-blue-light: #60a5fa;
  --cf-accent-blue-dark: #2563eb;

  /* Status Colors */
  --cf-success: #10b981;
  --cf-success-light: #34d399;
  --cf-success-dark: #059669;

  --cf-warning: #f59e0b;
  --cf-warning-light: #fbbf24;
  --cf-warning-dark: #d97706;

  --cf-error: #ef4444;
  --cf-error-light: #f87171;
  --cf-error-dark: #dc2626;

  --cf-info: #8b5cf6;
  --cf-info-light: #a78bfa;
  --cf-info-dark: #7c3aed;

  /* Neutral Colors */
  --cf-white: #ffffff;
  --cf-gray-50: #f9fafb;
  --cf-gray-100: #f3f4f6;
  --cf-gray-200: #e5e7eb;
  --cf-gray-300: #d1d5db;
  --cf-gray-400: #9ca3af;
  --cf-gray-500: #6b7280;
  --cf-gray-600: #4b5563;
  --cf-gray-700: #374151;
  --cf-gray-800: #1f2937;
  --cf-gray-900: #111827;

  /* Background Colors */
  --cf-bg-primary: #ffffff;
  --cf-bg-secondary: #f4f6f9;
  --cf-bg-tertiary: #f9fafb;

  /* Border Colors */
  --cf-border-light: #e5e7eb;
  --cf-border-medium: #d1d5db;
  --cf-border-dark: #9ca3af;

  /* Shadow Colors */
  --cf-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --cf-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --cf-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --cf-shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);

  /* Gradients */
  --cf-gradient-primary: linear-gradient(135deg, var(--cf-primary) 0%, var(--cf-primary-light) 100%);
  --cf-gradient-blue: linear-gradient(135deg, var(--cf-accent-blue) 0%, var(--cf-accent-blue-light) 100%);
  --cf-gradient-success: linear-gradient(135deg, var(--cf-success) 0%, var(--cf-success-light) 100%);

  /* Transitions */
  --cf-transition-fast: 0.15s ease;
  --cf-transition-normal: 0.2s ease;
  --cf-transition-slow: 0.3s ease;

  /* Border Radius */
  --cf-radius-sm: 4px;
  --cf-radius-md: 6px;
  --cf-radius-lg: 8px;
  --cf-radius-xl: 12px;
  --cf-radius-2xl: 16px;

  /* Spacing */
  --cf-space-xs: 4px;
  --cf-space-sm: 8px;
  --cf-space-md: 12px;
  --cf-space-lg: 16px;
  --cf-space-xl: 24px;
  --cf-space-2xl: 32px;
  --cf-space-3xl: 48px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #ffffff;
  color: #1f2937;
  line-height: 1.6;
}

/* ===== NORMALIZACIÓN SCROLL (Facturas) ===== */
html, body {
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
}

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

/* Button Base Styles */
button {
  cursor: pointer;
  border: none;
  outline: none;
  font-family: inherit;
  transition: all 0.2s ease;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form Elements */
input,
select,
textarea {
  font-family: inherit;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  padding: 8px 12px;
  transition: border-color 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Card Styles */
.card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Text Utilities */
.text-sm {
  font-size: 14px;
}
.text-xs {
  font-size: 12px;
}
.font-medium {
  font-weight: 500;
}
.font-semibold {
  font-weight: 600;
}
.font-bold {
  font-weight: 700;
}

/* Color Utilities */
.text-gray-500 {
  color: #6b7280;
}
.text-gray-600 {
  color: #4b5563;
}
.text-gray-700 {
  color: #374151;
}
.text-gray-900 {
  color: #111827;
}

/* Spacing Utilities */
.mb-2 {
  margin-bottom: 8px;
}
.mb-4 {
  margin-bottom: 16px;
}
.mb-6 {
  margin-bottom: 24px;
}
.p-4 {
  padding: 16px;
}
.p-6 {
  padding: 24px;
}

/* ===== UTILITY CLASSES ===== */
.cf-text-primary {
  color: var(--cf-primary);
}
.cf-text-secondary {
  color: var(--cf-secondary);
}
.cf-text-success {
  color: var(--cf-success);
}
.cf-text-warning {
  color: var(--cf-warning);
}
.cf-text-error {
  color: var(--cf-error);
}
.cf-text-info {
  color: var(--cf-info);
}

.cf-bg-primary {
  background-color: var(--cf-bg-primary);
}
.cf-bg-secondary {
  background-color: var(--cf-bg-secondary);
}
.cf-bg-success {
  background-color: var(--cf-success);
}
.cf-bg-warning {
  background-color: var(--cf-warning);
}
.cf-bg-error {
  background-color: var(--cf-error);
}

.cf-border {
  border: 1px solid var(--cf-border-light);
}
.cf-border-medium {
  border: 1px solid var(--cf-border-medium);
}
.cf-border-dark {
  border: 1px solid var(--cf-border-dark);
}

.cf-shadow-sm {
  box-shadow: var(--cf-shadow-sm);
}
.cf-shadow-md {
  box-shadow: var(--cf-shadow-md);
}
.cf-shadow-lg {
  box-shadow: var(--cf-shadow-lg);
}
.cf-shadow-xl {
  box-shadow: var(--cf-shadow-xl);
}

.cf-transition {
  transition: var(--cf-transition-normal);
}
.cf-transition-fast {
  transition: var(--cf-transition-fast);
}
.cf-transition-slow {
  transition: var(--cf-transition-slow);
}

/* Hover popout effect for containers */
.hover-popout {
  transition: all 0.2s ease;
  border-radius: var(--cf-radius-xl);
  border: 1px solid var(--cf-border-light);
  background: var(--cf-bg-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.hover-popout:hover {
  border-color: var(--cf-border-medium);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  transform: translateY(-1px);
}