:root {
  --primary-color: #2563eb;
  --secondary-color: #1e40af;
  --accent-color: #60a5fa;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --background: #ffffff;
  --background-light: #f9fafb;
  --background-dark: #111827;
  --border-color: #e5e7eb;
  --shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 24px 50px -20px rgba(15, 23, 42, 0.35);
  --radius-sm: 0.5rem;
  --radius-lg: 1rem;
}