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

@layer base {
  html {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 16px;
  }

  body {
    background-color: #f8fafc;
    color: #1f2937;
    line-height: 1.6;
  }

  /* Focus indicators für Barrierefreiheit */
  *:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
  }

  /* Skip-to-content für Screenreader */
  .skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #2563eb;
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
  }
  
  .skip-link:focus {
    top: 6px;
  }
}

@layer components {
  .btn {
    @apply inline-flex items-center justify-center px-4 py-2 text-base font-medium rounded-md border border-transparent focus:outline-none focus:ring-2 focus:ring-offset-2 min-h-[44px] min-w-[44px];
  }

  .btn-primary {
    @apply btn bg-primary text-white hover:bg-blue-700 focus:ring-primary;
  }

  .btn-secondary {
    @apply btn bg-white text-gray-700 border-gray-300 hover:bg-gray-50 focus:ring-gray-500;
  }

  .btn-danger {
    @apply btn bg-danger text-white hover:bg-red-700 focus:ring-danger;
  }

  .input {
    @apply block w-full px-3 py-2 text-base border border-gray-300 rounded-md shadow-sm placeholder-gray-400 focus:outline-none focus:ring-primary focus:border-primary min-h-[44px];
  }

  .card {
    @apply bg-white rounded-lg shadow border border-gray-200 overflow-hidden;
  }

  .allergen-badge {
    @apply inline-flex items-center px-2 py-1 text-xs font-medium rounded text-white;
  }
}

@layer utilities {
  .text-contrast-aa {
    color: #1f2937; /* Mindestens 4.5:1 Kontrast auf weißem Hintergrund */
  }
}