/* ============================================
   VIRTUAL OFFICE - ENHANCED FORM DESIGN SYSTEM
   ============================================ */

/* ===== FORM GROUP ===== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group:last-child {
  margin-bottom: 0;
}

/* ===== FORM LABELS ===== */
.form-label {
  display: block;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  transition: color var(--form-transition-fast);
}

.form-label:hover {
  color: var(--text-primary);
}

.form-label .label-icon {
  margin-right: var(--spacing-sm);
  color: var(--primary);
}

/* Required Indicator */
.required-indicator {
  color: var(--danger);
  font-weight: 700;
  margin-left: 2px;
}

.optional-indicator {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.85rem;
  margin-left: var(--spacing-sm);
}

/* ===== ENHANCED INPUT BASE ===== */
.form-control-enhanced,
.form-control {
  width: 100%;
  height: var(--form-field-height);
  padding: var(--form-field-padding-y) var(--form-field-padding-x);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: var(--form-border-width) solid var(--border-default);
  border-radius: var(--form-border-radius);
  transition: background-color var(--form-transition-fast),
              border-color var(--form-transition-fast),
              box-shadow var(--form-transition-fast);
}

.form-control-enhanced::placeholder,
.form-control::placeholder {
  color: var(--text-placeholder);
}

.form-control-enhanced:hover,
.form-control:hover {
  border-color: var(--text-muted);
  background: var(--bg-elevated);
}

.form-control-enhanced:focus,
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-subtle);
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.form-control-enhanced:disabled,
.form-control:disabled,
.form-select-enhanced:disabled,
.form-select:disabled,
.form-textarea-enhanced:disabled,
textarea.form-control:disabled {
  background: var(--bg-surface);
  border-color: var(--border-subtle);
  color: var(--text-muted);
  cursor: not-allowed;
  opacity: 0.65;
}

.form-control-enhanced[readonly],
.form-control[readonly],
.form-textarea-enhanced[readonly],
textarea.form-control[readonly] {
  background: var(--bg-surface);
  color: var(--text-secondary);
}

/* Input with Icon */
.input-icon-wrapper {
  position: relative;
}

.input-icon-wrapper .input-icon {
  position: absolute;
  left: var(--form-field-padding-x);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
  pointer-events: none;
  transition: color var(--form-transition-fast);
}

.input-icon-wrapper .form-control-enhanced,
.input-icon-wrapper .form-control {
  padding-left: 44px;
}

.input-icon-wrapper .form-control-enhanced:focus + .input-icon,
.input-icon-wrapper .form-control-enhanced:not(:placeholder-shown) + .input-icon,
.input-icon-wrapper .form-control:focus + .input-icon,
.input-icon-wrapper .form-control:not(:placeholder-shown) + .input-icon {
  color: var(--primary);
}

/* Input with Action Button */
.input-action-wrapper {
  position: relative;
}

.input-action-wrapper .form-control-enhanced,
.input-action-wrapper .form-control {
  padding-right: 48px;
}

.input-action-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--form-transition-fast);
}

.input-action-btn:hover {
  color: var(--primary);
  background: var(--primary-subtle);
}

/* ===== FLOATING LABEL INPUT ===== */
.floating-label-group {
  position: relative;
}

.floating-label-group .form-control-enhanced,
.floating-label-group .form-control {
  padding-top: 20px;
  padding-bottom: 8px;
}

.floating-label-group .floating-label {
  position: absolute;
  left: var(--form-field-padding-x);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  color: var(--text-placeholder);
  pointer-events: none;
  transition: all var(--form-transition-fast);
  background: transparent;
  padding: 0 4px;
}

.floating-label-group .form-control-enhanced:focus ~ .floating-label,
.floating-label-group .form-control-enhanced:not(:placeholder-shown) ~ .floating-label,
.floating-label-group .form-control:focus ~ .floating-label,
.floating-label-group .form-control:not(:placeholder-shown) ~ .floating-label {
  top: 0;
  transform: translateY(-50%) scale(0.85);
  color: var(--primary);
  background: var(--bg-elevated);
}

/* ===== VALIDATION STATES ===== */
.form-control-enhanced.is-valid,
.form-control.is-valid {
  border-color: var(--form-success-border);
  background: var(--form-success-bg);
}

.form-control-enhanced.is-valid:focus,
.form-control.is-valid:focus {
  box-shadow: 0 0 0 3px var(--success-subtle);
}

.form-control-enhanced.is-invalid,
.form-control.is-invalid {
  border-color: var(--form-error-border);
  background: var(--form-error-bg);
}

.form-control-enhanced.is-invalid:focus,
.form-control.is-invalid:focus {
  box-shadow: 0 0 0 3px var(--danger-subtle);
}

.form-control-enhanced.is-warning,
.form-control.is-warning {
  border-color: var(--form-warning-border);
  background: var(--form-warning-bg);
}

.form-control-enhanced.is-warning:focus,
.form-control.is-warning:focus {
  box-shadow: 0 0 0 3px var(--warning-subtle);
}

/* Validation Messages */
.validation-message {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  font-size: 0.875rem;
  animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.validation-message.error {
  color: var(--form-error-text);
}

.validation-message.success {
  color: var(--form-success-text);
}

.validation-message.warning {
  color: var(--form-warning-text);
}

/* ===== SELECT DROPDOWN ===== */
.form-select-enhanced,
.form-select {
  width: 100%;
  height: var(--form-field-height);
  padding: var(--form-field-padding-y) calc(var(--form-field-padding-x) + 24px)
           var(--form-field-padding-y) var(--form-field-padding-x);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-elevated) url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%230A84FF' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e") no-repeat right 12px center;
  background-size: 16px 12px;
  border: var(--form-border-width) solid var(--border-default);
  border-radius: var(--form-border-radius);
  appearance: none;
  transition: background-color var(--form-transition-fast),
              border-color var(--form-transition-fast),
              box-shadow var(--form-transition-fast);
  cursor: pointer;
}

.form-select-enhanced:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-subtle);
  background-color: var(--bg-elevated);
}

.form-select-enhanced option,
.form-select option {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

/* ===== TEXTAREA ===== */
.textarea-wrapper {
  position: relative;
}

.form-textarea-enhanced,
textarea.form-control {
  width: 100%;
  min-height: 120px;
  padding: var(--form-field-padding-y) var(--form-field-padding-x);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: var(--form-border-width) solid var(--border-default);
  border-radius: var(--form-border-radius);
  resize: vertical;
  transition: background-color var(--form-transition-fast),
              border-color var(--form-transition-fast),
              box-shadow var(--form-transition-fast);
}

.form-textarea-enhanced:focus,
textarea.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-subtle);
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.char-count {
  position: absolute;
  bottom: 12px;
  right: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.char-count.warning {
  color: var(--warning);
}

.char-count.danger {
  color: var(--danger);
}

/* ===== CUSTOM CHECKBOX & RADIO ===== */
.form-check-enhanced {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  cursor: pointer;
}

.form-check-enhanced input[type="checkbox"],
.form-check-enhanced input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkmark {
  width: 22px;
  height: 22px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--form-transition-fast),
              border-color var(--form-transition-fast);
  flex-shrink: 0;
  margin-top: 2px;
}

.form-check-enhanced input[type="radio"] ~ .checkmark {
  border-radius: 50%;
}

.form-check-enhanced input:checked ~ .checkmark {
  background: var(--primary);
  border-color: var(--primary);
}

.form-check-enhanced input:checked ~ .checkmark::after {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 12px;
  color: white;
}

.form-check-enhanced input[type="radio"]:checked ~ .checkmark::after {
  content: '';
  width: 10px;
  height: 10px;
  background: white;
  border-radius: 50%;
}

.form-check-enhanced:hover .checkmark {
  border-color: var(--primary);
}

.form-check-enhanced input:focus-visible ~ .checkmark {
  box-shadow: 0 0 0 3px var(--primary-subtle);
}

.check-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.check-label strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 2px;
}

.check-label small {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Standard Bootstrap form-check override */
.form-check {
  margin-bottom: var(--spacing-md);
}

.form-check-input {
  background-color: var(--bg-elevated);
  border-color: var(--border-default);
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
}

.form-check-label {
  color: var(--text-secondary);
  margin-left: var(--spacing-sm);
  cursor: pointer;
}

/* ===== TOGGLE SWITCH ===== */
.toggle-switch {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  cursor: pointer;
}

.toggle-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: relative;
  width: 52px;
  height: 28px;
  background: var(--border-light);
  border-radius: var(--radius-full);
  transition: all var(--form-transition-fast);
}

.toggle-slider::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  background: var(--text-primary);
  border-radius: 50%;
  transition: transform var(--form-transition-fast);
  box-shadow: none;
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--primary);
}

.toggle-switch input:checked + .toggle-slider::after {
  transform: translateX(24px);
}

.toggle-switch input:focus-visible + .toggle-slider {
  box-shadow: 0 0 0 3px var(--primary-subtle);
}

.toggle-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* ===== FORM LAYOUTS ===== */
.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Form Section */
.form-section {
  margin-bottom: var(--spacing-xl);
}

.form-section-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-default);
}

.form-section-header i {
  color: var(--primary);
  font-size: 1.25rem;
}

.form-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ===== FORM CARDS ===== */
.form-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  box-shadow: none;
  overflow: hidden;
}

.form-card-header {
  background: var(--bg-elevated);
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--border-default);
}

.form-card-body {
  padding: var(--spacing-xl);
}

.form-card-footer {
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-default);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

@media (max-width: 768px) {
  .form-card-footer {
    flex-direction: column;
  }
  
  .form-card-footer .btn {
    width: 100%;
  }
}

/* ===== ALERTS & MESSAGES ===== */
.alert-enhanced {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  border: 1px solid transparent;
}

.alert-enhanced .alert-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.alert-enhanced .alert-content {
  flex: 1;
}

.alert-enhanced .alert-title {
  font-weight: 600;
  margin-bottom: 2px;
}

.alert-enhanced .alert-message {
  font-size: 0.95rem;
  opacity: 0.9;
}

.alert-enhanced.alert-error {
  background: var(--form-error-bg);
  border-color: var(--form-error-border);
  color: var(--form-error-text);
}

.alert-enhanced.alert-success {
  background: var(--form-success-bg);
  border-color: var(--form-success-border);
  color: var(--form-success-text);
}

.alert-enhanced.alert-warning {
  background: var(--form-warning-bg);
  border-color: var(--form-warning-border);
  color: var(--form-warning-text);
}

/* ===== DATE PICKER ===== */
.date-picker-wrapper {
  position: relative;
}

.date-picker-wrapper .form-control-enhanced,
.date-picker-wrapper .form-control {
  padding-right: 44px;
}

.date-picker-wrapper .calendar-icon {
  position: absolute;
  right: var(--form-field-padding-x);
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  pointer-events: none;
}

/* Date input styling for dark theme */
input[type="date"].form-control-enhanced,
input[type="date"].form-control,
input[type="time"].form-control-enhanced,
input[type="time"].form-control,
input[type="datetime-local"].form-control-enhanced,
input[type="datetime-local"].form-control {
  color-scheme: dark;
}

/* ===== FILE UPLOAD ===== */
.file-dropzone {
  border: 1px dashed var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
  background: var(--bg-surface);
  transition: background-color var(--form-transition-fast),
              border-color var(--form-transition-fast);
  cursor: pointer;
}

.file-dropzone:hover,
.file-dropzone.dragover {
  border-color: var(--primary);
  background: var(--primary-subtle);
}

.file-dropzone .dropzone-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.file-dropzone .dropzone-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.file-dropzone .dropzone-hint {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.file-dropzone input[type="file"] {
  display: none;
}

/* File Preview */
.file-preview {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-md);
}

.file-preview .file-icon {
  width: 48px;
  height: 48px;
  background: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
}

.file-preview .file-info {
  flex: 1;
}

.file-preview .file-name {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.file-preview .file-size {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.file-preview .file-remove {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: background-color var(--form-transition-fast);
}

.file-preview .file-remove:hover {
  background: var(--danger-subtle);
}