:root {
  /* Light Mode Variables */
  --color-background: #ffffff;
  --color-foreground: #1f2937;
  --color-primary: #05428c;
  --color-primary-foreground: #ffffff;
  --color-secondary: #64748b;
  --color-muted: #f1f5f9;
  --color-accent: #fbbf24;
  --color-border: #e2e8f0;
  --color-ring: #05428c;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
}

.dark {
  /* Dark Mode Variables */
  --color-background: #0f172a;
  --color-foreground: #f8fafc;
  --color-primary: #3b82f6;
  --color-primary-foreground: #ffffff;
  --color-secondary: #94a3b8;
  --color-muted: #1e293b;
  --color-accent: #fbbf24;
  --color-border: #334155;
  --color-ring: #3b82f6;
  --color-success: #059669;
  --color-warning: #d97706;
  --color-error: #dc2626;
}

/* Focus visible styles for accessibility */
:focus-visible {
  outline: 2px solid var(--color-ring);
  outline-offset: 2px;
}

/* Reduce motion preferences */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* Smooth theme transition */
* {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}