/* Forms Styles */

/* Form Container */
.form-container {
  background: white;
  border-radius: var(--radius);
  padding: var(--spacing-6);
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
}

/* Form Sections */
.form-section {
  margin-bottom: var(--spacing-8);
  padding-bottom: var(--spacing-8);
  border-bottom: 1px solid var(--gray-200);
}

.form-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.form-section h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-4);
}

/* Form Grid */
.form-grid {
  display: grid;
  gap: var(--spacing-5);
}

.form-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.form-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.form-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Form Row */
.form-row {
  display: flex;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-5);
}

.form-row .form-group {
  flex: 1;
  margin-bottom: 0;
}

/* Form Actions */
.form-actions {
  display: flex;
  gap: var(--spacing-3);
  padding-top: var(--spacing-6);
  border-top: 1px solid var(--gray-200);
  margin-top: var(--spacing-6);
}

.form-actions.right {
  justify-content: flex-end;
}

.form-actions.center {
  justify-content: center;
}

/* Inline Form */
.form-inline {
  display: flex;
  align-items: flex-end;
  gap: var(--spacing-4);
}

.form-inline .form-group {
  margin-bottom: 0;
  flex: 1;
}

/* Input Groups */
.input-group {
  display: flex;
  align-items: stretch;
}

.input-group .input,
.input-group .btn {
  border-radius: 0;
}

.input-group .input:first-child,
.input-group .btn:first-child {
  border-top-left-radius: var(--radius);
  border-bottom-left-radius: var(--radius);
}

.input-group .input:last-child,
.input-group .btn:last-child {
  border-top-right-radius: var(--radius);
  border-bottom-right-radius: var(--radius);
}

.input-group .input:not(:first-child),
.input-group .btn:not(:first-child) {
  border-left: none;
}

.input-group-prepend,
.input-group-append {
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-3);
  background-color: var(--gray-100);
  border: 1px solid var(--gray-300);
  color: var(--gray-600);
  font-size: var(--text-sm);
  white-space: nowrap;
}

.input-group-prepend {
  border-right: none;
  border-top-left-radius: var(--radius);
  border-bottom-left-radius: var(--radius);
}

.input-group-append {
  border-left: none;
  border-top-right-radius: var(--radius);
  border-bottom-right-radius: var(--radius);
}

/* File Upload */
.file-upload {
  position: relative;
}

.file-upload-input {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-upload-area {
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius);
  padding: var(--spacing-8);
  text-align: center;
  transition: all var(--transition-fast);
  background-color: var(--gray-50);
}

.file-upload-area:hover,
.file-upload-area.dragover {
  border-color: var(--primary);
  background-color: #dbeafe;
}

.file-upload-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-4);
  color: var(--gray-400);
}

.file-upload-text {
  font-size: var(--text-sm);
  color: var(--gray-600);
  margin-bottom: var(--spacing-2);
}

.file-upload-hint {
  font-size: var(--text-xs);
  color: var(--gray-400);
}

/* Image Preview */
.image-preview {
  margin-top: var(--spacing-4);
  display: none;
}

.image-preview.active {
  display: block;
}

.image-preview-container {
  position: relative;
  display: inline-block;
}

.image-preview img {
  max-width: 300px;
  max-height: 300px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
}

.image-preview-remove {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 28px;
  height: 28px;
  background-color: var(--danger);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all var(--transition-fast);
}

.image-preview-remove:hover {
  transform: scale(1.1);
}

/* Options List */
.options-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.option-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-4);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  background-color: white;
  transition: all var(--transition-fast);
}

.option-item:hover {
  border-color: var(--gray-300);
}

.option-item.correct {
  border-color: var(--success);
  background-color: #f0fdf4;
}

.option-item input[type="radio"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--success);
}

.option-label {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--gray-100);
  border-radius: 50%;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--gray-700);
  flex-shrink: 0;
}

.option-item.correct .option-label {
  background-color: var(--success);
  color: white;
}

.option-input {
  flex: 1;
}

.option-remove {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  cursor: pointer;
  border-radius: var(--radius);
  transition: all var(--transition-fast);
}

.option-remove:hover {
  background-color: #fee2e2;
  color: var(--danger);
}

/* Tags Input */
.tags-input-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  padding: var(--spacing-3);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  min-height: 42px;
  background-color: white;
}

.tags-input-container:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.tags-input-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-1) var(--spacing-3);
  background-color: var(--primary);
  color: white;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
}

.tags-input-tag-remove {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.tags-input-tag-remove:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.tags-input-field {
  flex: 1;
  min-width: 120px;
  border: none;
  outline: none;
  font-size: var(--text-sm);
  background: transparent;
}

/* Switch Toggle */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--gray-300);
  transition: var(--transition-base);
  border-radius: var(--radius-full);
}

.switch-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: var(--transition-base);
  border-radius: 50%;
}

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

.switch input:checked + .switch-slider:before {
  transform: translateX(20px);
}

/* Range Slider */
.range-slider {
  width: 100%;
}

.range-slider input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--gray-200);
  outline: none;
  -webkit-appearance: none;
}

.range-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: var(--shadow);
}

.range-slider input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: var(--shadow);
  border: none;
}

.range-value {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--spacing-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-700);
}

/* Validation */
.form-group.has-error label {
  color: var(--danger);
}

.form-group.has-error .input,
.form-group.has-error .select,
.form-group.has-error .textarea {
  border-color: var(--danger);
}

.form-group.has-error .input:focus,
.form-group.has-error .select:focus,
.form-group.has-error .textarea:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.error-message {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-top: var(--spacing-2);
  font-size: var(--text-xs);
  color: var(--danger);
}

.form-group.has-success .input,
.form-group.has-success .select,
.form-group.has-success .textarea {
  border-color: var(--success);
}

.success-message {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-top: var(--spacing-2);
  font-size: var(--text-xs);
  color: var(--success);
}

/* Responsive */
@media (max-width: 768px) {
  .form-grid-2,
  .form-grid-3,
  .form-grid-4 {
    grid-template-columns: 1fr;
  }

  .form-row {
    flex-direction: column;
  }

  .form-inline {
    flex-direction: column;
    align-items: stretch;
  }

  .form-actions {
    flex-direction: column;
  }

  .form-actions .btn {
    width: 100%;
  }
}