@tailwind base;
@tailwind components;
@tailwind utilities;

:root {
  /* Light mode colors */
  --color-primary: #3B82F6;
  --color-secondary: #8B5CF6;
  --color-error: #EF4444;
  --color-success: #10B981;
  --color-warning: #F59E0B;

  --color-bg: #FFFFFF;
  --color-bg-secondary: #F9FAFB;
  --color-text: #111827;
  --color-text-secondary: #6B7280;
  --color-border: #D1D5DB;

  /* Spacing base unit */
  --spacing-unit: 4px;
}

.dark {
  /* Dark mode colors */
  --color-bg: #1F2937;
  --color-bg-secondary: #111827;
  --color-text: #F9FAFB;
  --color-text-secondary: #D1D5DB;
  --color-border: #4B5563;
}

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

html,
body {
  max-width: 100vw;
  overflow-x: hidden;
}

body {
  color: var(--color-text);
  background: var(--color-bg);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-border: #000000;
  }

  .dark {
    --color-border: #FFFFFF;
  }
}

/* Screen reader only class */
.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;
}