/**
 * @file
 * Form ARIA Enhancements Styles
 * Visual styling for accessible form error prevention
 * WCAG 2.0 AA 3.3.1, 3.3.2, 3.3.3, 3.3.4 Compliance
 */

/* ==========================================================================
   Error Summary - Top of Form
   ========================================================================== */

.form-error-summary {
  background-color: #f8d7da;
  border: 2px solid #dc3545;
  border-left-width: 5px;
  border-radius: 0.375rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  color: #721c24;
}

.form-error-summary h2,
.form-error-summary .h4 {
  color: #721c24;
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: 1rem;
}

.form-error-summary ul {
  margin: 0;
  padding-left: 1.5rem;
  list-style-type: disc;
}

.form-error-summary li {
  margin-bottom: 0.5rem;
}

.form-error-summary a {
  color: #721c24;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-error-summary a:hover,
.form-error-summary a:focus {
  color: #491217;
  text-decoration-thickness: 2px;
  outline: 2px solid #dc3545;
  outline-offset: 2px;
}

/* ==========================================================================
   Individual Field Errors
   ========================================================================== */

.form-item--error {
  position: relative;
  padding-left: 0.75rem;
  border-left: 4px solid #dc3545;
}

.form-item--error-message {
  background-color: #f8d7da;
  border: 1px solid #dc3545;
  border-radius: 0.25rem;
  padding: 0.75rem 1rem;
  margin-top: 0.5rem;
  color: #721c24;
}

.form-item--error-message strong {
  display: block;
  font-weight: 600;
  font-size: 0.9375rem;
}

/* Icon for error message */
.form-item--error-message::before {
  content: '⚠️ ';
  margin-right: 0.5rem;
  font-size: 1.125rem;
}

/* Highlight invalid form controls */
.form-item--error input,
.form-item--error select,
.form-item--error textarea,
input[aria-invalid="true"],
select[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: #dc3545 !important;
  border-width: 2px !important;
  background-color: #fff5f5;
}

.form-item--error input:focus,
.form-item--error select:focus,
.form-item--error textarea:focus,
input[aria-invalid="true"]:focus,
select[aria-invalid="true"]:focus,
textarea[aria-invalid="true"]:focus {
  border-color: #dc3545 !important;
  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25) !important;
  outline: 2px solid #dc3545 !important;
  outline-offset: 2px !important;
}

/* Valid state (optional - shows when field passes validation) */
input[aria-invalid="false"]:not(:placeholder-shown),
select[aria-invalid="false"],
textarea[aria-invalid="false"]:not(:placeholder-shown) {
  border-color: #28a745;
}

/* ==========================================================================
   Required Field Indicators
   ========================================================================== */

.required-fields-legend {
  background-color: #e7f3ff;
  border-left: 4px solid #0d3328;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  border-radius: 0.25rem;
}

.required-fields-legend p {
  margin: 0;
  font-size: 0.9375rem;
  color: #212529;
}

.form-required {
  color: #dc3545;
  font-weight: 700;
  margin-left: 0.25rem;
}

/* Ensure required marker is visible but announced only once */
label .form-required {
  font-size: 1.125rem;
}

/* ==========================================================================
   Help Text and Descriptions
   ========================================================================== */

.description,
.form-text {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: #6c757d;
  line-height: 1.5;
}

.form-item--error .description,
.form-item--error .form-text {
  color: #721c24;
}

/* Help icon next to labels */
.form-item-help-icon {
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  margin-left: 0.5rem;
  background-color: #0d3328;
  color: #ffffff;
  border-radius: 50%;
  text-align: center;
  line-height: 1.25rem;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: help;
}

.form-item-help-icon:hover,
.form-item-help-icon:focus {
  background-color: #18453b;
  outline: 2px solid #0d3328;
  outline-offset: 2px;
}

/* ==========================================================================
   Live Region for Screen Readers
   ========================================================================== */

.form-errors-live-region {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Alternative visually-hidden class */
.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;
}

/* ==========================================================================
   Form Field Format Examples
   ========================================================================== */

.form-format-example {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.8125rem;
  color: #6c757d;
  font-style: italic;
}

.form-format-example::before {
  content: 'Example: ';
  font-weight: 600;
}

/* Email field example */
input[type="email"] + .form-format-example::after {
  content: 'name@example.com';
}

/* Phone field example */
input[type="tel"] + .form-format-example::after {
  content: '123-456-7890';
}

/* URL field example */
input[type="url"] + .form-format-example::after {
  content: 'https://www.example.com';
}

/* ==========================================================================
   Improved Label Visibility
   ========================================================================== */

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  color: #212529;
}

label.option {
  /* Checkbox and radio labels */
  display: inline-block;
  margin-bottom: 0;
  margin-left: 0.5rem;
  font-weight: 500;
}

/* Ensure labels have sufficient contrast */
.form-item label {
  color: #212529;
  /* WCAG AA: 16.1:1 contrast on white */
}

/* ==========================================================================
   Focus States for Form Elements
   ========================================================================== */

input:focus,
select:focus,
textarea:focus,
.form-control:focus,
.form-select:focus {
  border-color: #0d3328 !important;
  box-shadow: 0 0 0 0.25rem rgba(13, 51, 40, 0.25) !important;
  outline: 2px solid #0d3328 !important;
  outline-offset: 2px !important;
}

/* ==========================================================================
   Fieldset and Legend Improvements
   ========================================================================== */

fieldset {
  border: 2px solid #dee2e6;
  border-radius: 0.375rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

legend {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0d3328;
  padding: 0 0.75rem;
  margin-bottom: 1rem;
  width: auto;
}

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */

@media (max-width: 767px) {
  .form-error-summary {
    padding: 1rem;
    font-size: 0.9375rem;
  }

  .form-error-summary h2,
  .form-error-summary .h4 {
    font-size: 1.125rem;
  }

  .form-item--error {
    padding-left: 0.5rem;
    border-left-width: 3px;
  }

  .form-item--error-message {
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
  }
}

/* ==========================================================================
   High Contrast Mode Support
   ========================================================================== */

@media (prefers-contrast: high) {
  .form-error-summary {
    border-width: 3px;
    border-color: #000000;
  }

  .form-item--error {
    border-left-width: 5px;
    border-color: #000000;
  }

  input[aria-invalid="true"],
  select[aria-invalid="true"],
  textarea[aria-invalid="true"] {
    border-color: #000000 !important;
    border-width: 3px !important;
  }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  .form-error-summary,
  .form-item--error-message {
    border: 2px solid #000000;
    background-color: #ffffff;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .form-required {
    color: #000000;
  }
}