/**
 * Form Validation Styles
 *
 * Provides consistent styling for form validation errors and feedback
 */

/* Error message styling */
.validation-error {
  display: none;
  margin-top: 0.375rem;
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: #dc2626;
  font-weight: 400;
  animation: slideDown 0.2s ease-out;
}

.validation-error.show,
.validation-error[style*="display: block"] {
  display: block;
}

/* Slide down animation for error messages */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Error field styling */
.validation-error-field {
  border-color: #dc2626 !important;
  border-width: 2px !important;
  background-color: #fef2f2;
}

.validation-error-field:focus {
  outline: none;
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Valid field styling (optional - for success states) */
.validation-valid-field {
  border-color: #16a34a !important;
  border-width: 2px !important;
}

.validation-valid-field:focus {
  outline: none;
  border-color: #16a34a !important;
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.1);
}

/* Form-level error message */
.form-error-message {
  display: none;
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  border-left: 4px solid #dc2626;
  border-radius: 0.375rem;
  color: #991b1b;
  font-size: 0.875rem;
  line-height: 1.5;
}

.form-error-message.show {
  display: block;
  animation: slideDown 0.2s ease-out;
}

.form-error-message::before {
  content: "⚠️ ";
  margin-right: 0.5rem;
}

/* Form-level success message */
.form-success-message {
  display: none;
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  background-color: #f0fdf4;
  border: 1px solid: #bbf7d0;
  border-left: 4px solid #16a34a;
  border-radius: 0.375rem;
  color: #166534;
  font-size: 0.875rem;
  line-height: 1.5;
}

.form-success-message.show {
  display: block;
  animation: slideDown 0.2s ease-out;
}

.form-success-message::before {
  content: "✓ ";
  margin-right: 0.5rem;
}

/* Label styling for required fields */
.required-field-label::after {
  content: " *";
  color: #dc2626;
  font-weight: 600;
}

/* Helpful hint text */
.field-hint {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  line-height: 1rem;
  color: #6b7280;
}

.field-hint.error {
  color: #dc2626;
}

/* Loading state for submit buttons */
.submit-btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.submit-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-radius: 50%;
  border-top-color: currentColor;
  border-right-color: currentColor;
  animation: spin 0.6s linear infinite;
  color: white;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Character counter for text fields */
.char-counter {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  line-height: 1rem;
  color: #6b7280;
  text-align: right;
}

.char-counter.limit-approaching {
  color: #f59e0b;
}

.char-counter.limit-exceeded {
  color: #dc2626;
  font-weight: 600;
}

/* Tooltip for validation messages */
.validation-tooltip {
  position: absolute;
  z-index: 10;
  padding: 0.5rem 0.75rem;
  background-color: #1f2937;
  color: white;
  font-size: 0.75rem;
  line-height: 1rem;
  border-radius: 0.375rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
}

.validation-tooltip.show {
  opacity: 1;
}

.validation-tooltip::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 50%;
  margin-left: -4px;
  border-width: 0 4px 4px 4px;
  border-style: solid;
  border-color: transparent transparent #1f2937 transparent;
}

/* Accessibility improvements */
.validation-error[role="alert"] {
  /* Screen reader will announce error */
}

/* Focus visible for keyboard navigation */
.validation-error-field:focus-visible {
  outline: 2px solid #dc2626;
  outline-offset: 2px;
}

/* Password strength indicator */
.password-strength-indicator {
  margin-top: 0.5rem;
  height: 4px;
  background-color: #e5e7eb;
  border-radius: 2px;
  overflow: hidden;
}

.password-strength-bar {
  height: 100%;
  width: 0%;
  transition: width 0.3s ease, background-color 0.3s ease;
}

.password-strength-bar.weak {
  width: 33%;
  background-color: #dc2626;
}

.password-strength-bar.medium {
  width: 66%;
  background-color: #f59e0b;
}

.password-strength-bar.strong {
  width: 100%;
  background-color: #16a34a;
}

.password-strength-text {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 500;
}

.password-strength-text.weak {
  color: #dc2626;
}

.password-strength-text.medium {
  color: #f59e0b;
}

.password-strength-text.strong {
  color: #16a34a;
}

/* Checkbox and radio validation */
input[type="checkbox"].validation-error-field,
input[type="radio"].validation-error-field {
  outline: 2px solid #dc2626;
  outline-offset: 2px;
  background-color: transparent;
}

/* Select field validation */
select.validation-error-field {
  border-color: #dc2626 !important;
  background-color: #fef2f2;
}

/* Textarea validation */
textarea.validation-error-field {
  border-color: #dc2626 !important;
  background-color: #fef2f2;
}

/* Mobile responsive adjustments */
@media (max-width: 640px) {
  .validation-error {
    font-size: 0.8125rem;
  }

  .form-error-message,
  .form-success-message {
    font-size: 0.8125rem;
    padding: 0.625rem 0.875rem;
  }

  .validation-tooltip {
    font-size: 0.6875rem;
  }
}

/* Dark mode support (if implemented) */
@media (prefers-color-scheme: dark) {
  .validation-error-field {
    background-color: rgba(220, 38, 38, 0.1);
  }

  .form-error-message {
    background-color: rgba(220, 38, 38, 0.1);
    border-color: rgba(220, 38, 38, 0.3);
    color: #fca5a5;
  }

  .form-success-message {
    background-color: rgba(22, 163, 74, 0.1);
    border-color: rgba(22, 163, 74, 0.3);
    color: #86efac;
  }
}