/* ==========================================================
   form-renderer.css — Form Sections & Field Styles
   ========================================================== */

/* ---- Form Renderer Container ---- */
.form-renderer {
  padding: 0;
}

.form-entry-container {
  max-width: 900px;
}

/* ---- Form Section ---- */
.form-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-lg);
  overflow: hidden;
}

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

.form-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-base);
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-bg);
}

.form-section-header h3 {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  margin: 0;
  color: var(--color-text);
}

.form-section-header p {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin: 2px 0 0 0;
}

.form-section-body {
  padding: var(--space-base);
}

/* Collapsed */
.form-section.collapsed .form-section-body {
  display: none;
}

/* Hidden (conditional) */
.form-section.hidden {
  display: none;
}

/* Collapse Toggle */
.collapse-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: transform var(--transition-base), color var(--transition-fast);
}

.collapse-toggle:hover {
  color: var(--color-text);
  background: var(--color-bg-hover);
}

.form-section.collapsed .collapse-toggle {
  transform: rotate(-90deg);
}

/* ---- Field Grid ---- */
.form-field-grid {
  display: grid;
  gap: var(--space-base);
}

.form-field-grid.cols-1 {
  grid-template-columns: 1fr;
}

.form-field-grid.cols-2 {
  grid-template-columns: 1fr 1fr;
}

.form-field-grid.cols-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

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

/* ---- Field Wrapper ---- */
.form-field-wrapper {
  padding: 0;
}

.form-field-wrapper.width-full {
  grid-column: 1 / -1;
}

.form-field-wrapper.width-half {
  /* default, fits grid */
}

.form-field-wrapper.width-third {
  /* default in 3-col grid */
}

.form-field-wrapper.hidden {
  display: none;
}

/* Error state */
.form-field-wrapper.has-error .form-input,
.form-field-wrapper.has-error .form-select,
.form-field-wrapper.has-error .form-textarea,
.form-field-wrapper.has-error .multiselect-container {
  border-color: var(--color-border-error);
}

.form-field-wrapper.has-error .form-input:focus,
.form-field-wrapper.has-error .form-select:focus,
.form-field-wrapper.has-error .form-textarea:focus {
  box-shadow: var(--shadow-error);
}

/* ---- Field Label ---- */
.form-field-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.form-field-label .required-marker {
  color: var(--color-danger);
  margin-left: 2px;
}

/* ---- Field Error ---- */
.form-field-error {
  display: none;
  font-size: var(--font-size-xs);
  color: var(--color-danger);
  margin-top: var(--space-xs);
  line-height: var(--line-height-base);
}

.form-field-wrapper.has-error .form-field-error {
  display: block;
}

/* ---- Field Hint ---- */
.form-field-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* ---- Toggle Field ---- */
.toggle-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
}

.toggle-slider {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--color-border);
  border-radius: 12px;
  cursor: pointer;
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.toggle-slider::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.toggle-slider.active {
  background: var(--color-primary);
}

.toggle-slider.active::after {
  transform: translateX(20px);
}

.toggle-label-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.toggle-label-text.active {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

/* ---- Number Input ---- */
.number-input-wrapper {
  display: flex;
  align-items: stretch;
}

.number-input-wrapper .form-input {
  border-radius: 0;
  text-align: right;
}

.number-input-wrapper .form-input:first-child {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.number-input-wrapper .form-input:last-child {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.number-input-wrapper .form-input:only-child {
  border-radius: var(--radius-md);
}

.input-prefix,
.input-suffix {
  display: flex;
  align-items: center;
  padding: 0 var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  white-space: nowrap;
}

.input-prefix {
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-suffix {
  border-left: none;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* ---- Multi-Value ---- */
.multi-value-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.multi-value-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.multi-value-row .form-input {
  flex: 1;
}

.multi-value-row .btn-icon {
  flex-shrink: 0;
}

.multi-value-add {
  margin-top: var(--space-sm);
}

/* ---- Multiselect ---- */
.multiselect-container {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-input);
  min-height: 38px;
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.multiselect-container:focus-within {
  border-color: var(--color-border-focus);
  box-shadow: var(--shadow-focus);
}

.multiselect-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding: 4px 8px;
  min-height: 30px;
  align-items: center;
}

.multiselect-tag {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px 6px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  max-width: 200px;
}

.multiselect-tag span {
  overflow: hidden;
  text-overflow: ellipsis;
}

.tag-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  border-radius: 2px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.tag-remove:hover {
  background: rgba(0, 115, 230, 0.2);
}

.multiselect-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: -1px;
  right: -1px;
  max-height: 200px;
  overflow-y: auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: var(--z-dropdown);
}

.multiselect-dropdown.open {
  display: block;
}

.multiselect-option {
  padding: 8px 12px;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.multiselect-option:hover {
  background: var(--color-bg-hover);
}

.multiselect-option.selected {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

.multiselect-option.selected::before {
  content: '✓';
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
}

.multiselect-search {
  padding: var(--space-sm);
  border-bottom: 1px solid var(--color-border-light);
  position: sticky;
  top: 0;
  background: var(--color-bg-card);
}

.multiselect-search .form-input {
  font-size: var(--font-size-sm);
  padding: 4px 8px;
}

/* ---- Linked Fields ---- */
.linked-fields-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.linked-fields-row {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  padding: var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
}

.linked-field-input {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  flex: 1;
  min-width: 0;
}

.linked-field-input label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
}

.linked-fields-row .btn-icon {
  margin-top: 18px;
  flex-shrink: 0;
}

.linked-fields-add {
  margin-top: var(--space-sm);
}

/* ---- Readonly Field ---- */
.readonly-field {
  background: var(--color-bg-disabled);
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  min-height: 38px;
  display: flex;
  align-items: center;
}

/* Flip upward when near bottom of viewport */
.multiselect-dropdown.open-upward {
  top: auto;
  bottom: 100%;
  border-top: 1px solid var(--color-border);
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

/* ── Lookup Field Styles ── */
.lookup-field-wrapper {
  position: relative;
}

.lookup-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-bg, #fff);
  border: 1px solid var(--color-border, #e2e8f0);
  border-top: none;
  border-radius: 0 0 8px 8px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
  max-height: 280px;
  overflow-y: auto;
}

.lookup-item {
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: background 0.15s;
}
.lookup-item:hover,
.lookup-item.active {
  background: var(--color-primary-light, #e6f0ff);
}
.lookup-item:last-child {
  border-bottom: none;
}
.lookup-item-primary {
  font-size: 13px;
  color: var(--color-text, #1a202c);
}
.lookup-item-primary strong {
  color: var(--color-primary, #3b82f6);
}
.lookup-item-secondary {
  font-size: 11px;
  color: var(--color-text-muted, #718096);
  margin-top: 2px;
}

.lookup-no-results {
  padding: 16px;
  text-align: center;
  color: var(--color-text-muted, #718096);
  font-size: 13px;
}

.lookup-status {
  font-size: 12px;
  margin-top: 4px;
  min-height: 18px;
}
.lookup-status-success {
  color: var(--color-success, #00a854);
  font-weight: 600;
}
.lookup-status-error {
  color: var(--color-danger, #f5222d);
}

.lookup-preview {
  display: none;
  margin-top: 8px;
  padding: 10px 12px;
  background: var(--color-success-light, #f0fff4);
  border: 1px solid var(--color-success, #00a854);
  border-radius: 8px;
  font-size: 12px;
}
.lookup-preview-header {
  font-weight: 600;
  color: var(--color-success, #00a854);
  margin-bottom: 6px;
}
.lookup-preview-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.lookup-preview-item {
  background: white;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--color-border, #e2e8f0);
  font-size: 11px;
  color: var(--color-text-secondary, #4a5568);
}