/* Accessibility utilities */

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Focus indicators */
.focus-visible:focus {
  outline: 2px solid #9b59b6;
  outline-offset: 2px;
}

/* Skip link for screen readers */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: #9b59b6;
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 9999;
}

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

/* High contrast support */
@media (prefers-contrast: high) {
  .form-control,
  .form-select,
  .btn {
    border-width: 2px !important;
  }
}

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

/* Better form validation styles */
.form-control:invalid {
  border-color: #dc3545;
}

.form-control:valid {
  border-color: #28a745;
}

/* Loading states */
.btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-loading {
  position: relative;
  color: transparent !important;
}

.btn-loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: button-loading-spinner 1s ease infinite;
}

@keyframes button-loading-spinner {
  from {
    transform: rotate(0turn);
  }
  to {
    transform: rotate(1turn);
  }
}