@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .content {
    padding: 1.5rem;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 280px;
  }
  
  .header {
    padding: 1rem;
  }
  
  .header-title {
    font-size: 1.25rem;
  }
  
  .content {
    padding: 1rem;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .role-grid {
    grid-template-columns: 1fr;
  }
  
  .btn {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
  }
  
  .modal-content {
    padding: 1.5rem;
    margin: 1rem;
  }
  
  .table-container {
    overflow-x: auto;
  }
  
  .table {
    min-width: 600px;
  }
  
  .tab-list {
    overflow-x: auto;
    white-space: nowrap;
  }
  
  .tab-item {
    flex-shrink: 0;
  }
}

@media (max-width: 480px) {
  .login-card {
    padding: 1.5rem;
    margin: 1rem;
  }
  
  .login-title {
    font-size: 1.5rem;
  }
  
  .role-icon {
    font-size: 1.5rem;
  }
  
  .stat-card {
    padding: 1rem;
  }
  
  .stat-value {
    font-size: 1.5rem;
  }
  
  .card {
    padding: 1rem;
  }
  
  .header-right {
    gap: 0.5rem;
  }
  
  .btn-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
  }
}

/* Print styles */
@media print {
  .sidebar,
  .header,
  .btn,
  .dropdown,
  .modal {
    display: none !important;
  }
  
  .main-content {
    margin-left: 0 !important;
  }
  
  .content {
    padding: 0 !important;
  }
  
  .table {
    border-collapse: collapse;
  }
  
  .table th,
  .table td {
    border: 1px solid #000;
    padding: 0.5rem;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  :root {
    --border-color: #000000;
    --text-secondary: #000000;
  }
  
  [data-theme="dark"] {
    --border-color: #ffffff;
    --text-secondary: #ffffff;
  }
}

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

/* Focus styles for accessibility */
.btn:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus,
.nav-link:focus,
.dropdown-toggle:focus,
.tab-link:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Skip to content link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 9999;
}

.skip-link:focus {
  top: 6px;
}