/* Story 4.2 — Field Picker & Column Ordering
   ============================================
   Right sidebar panel for selecting dimensions/metrics and reordering.
   Follows Kwalee design tokens from theme.css.
*/

/* ── Sidebar backdrop ────────────────────────────────────────────── */
.fp-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1001;
  background: rgba(0, 0, 0, 0.5);
  transition:
    opacity 0.2s ease,
    visibility 0.2s ease;
}

.fp-modal-backdrop.fp-modal-visible {
  opacity: 1;
  visibility: visible;
}

.fp-modal-backdrop.fp-modal-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* ── Sidebar panel — slides from right ───────────────────────────── */
.fp-modal-container {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 420px;
  max-width: 90vw;
  background: var(--bg-primary, #ffffff);
  border-left: 1px solid var(--border-color, #e5e5e5);
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
  z-index: 1002;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateX(100%);
  transition: transform 0.25s ease;
}

.fp-modal-backdrop.fp-modal-visible .fp-modal-container {
  transform: translateX(0);
}

[data-theme="dark"] .fp-modal-container {
  background: var(--bg-secondary, #171717);
  border-left-color: var(--border-color, #404040);
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.4);
}

/* ── Header ─────────────────────────────────────────────────────── */
.fp-modal-header {
  padding: 24px 24px 16px;
  border-bottom: 1px solid var(--border-color, #e5e5e5);
}

[data-theme="dark"] .fp-modal-header {
  border-bottom-color: var(--border-color, #404040);
}

.fp-modal-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.fp-modal-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary, #171717);
}

[data-theme="dark"] .fp-modal-title {
  color: var(--text-primary, #fafafa);
}

.fp-modal-close-btn {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-secondary, #525252);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.15s ease;
}

.fp-modal-close-btn:hover {
  background: var(--bg-hover, #fafafa);
  color: var(--text-primary, #171717);
}

[data-theme="dark"] .fp-modal-close-btn:hover {
  background: var(--bg-hover, #404040);
  color: var(--text-primary, #fafafa);
}

.fp-modal-subtitle {
  margin: 4px 0 0;
  font-size: 0.875rem;
  color: var(--text-secondary, #525252);
}

/* ── Stacked body (vertical layout for sidebar width) ───────────── */
.fp-modal-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.fp-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.fp-panel-available {
  flex: 3;
  border-bottom: 1px solid var(--border-color, #e5e5e5);
}

[data-theme="dark"] .fp-panel-available {
  border-bottom-color: var(--border-color, #404040);
}

.fp-panel-selected {
  flex: 2;
}

.fp-panel-header {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fp-panel-selected .fp-panel-header {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.fp-panel-title {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary, #171717);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

[data-theme="dark"] .fp-panel-title {
  color: var(--text-primary, #fafafa);
}

.fp-selected-count {
  font-size: 0.75rem;
  color: var(--text-muted, #737373);
  font-weight: 500;
}

/* ── Search input ───────────────────────────────────────────────── */
.fp-search-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color, #d4d4d4);
  border-radius: 8px;
  font-size: 0.875rem;
  background: var(--bg-primary, #ffffff);
  color: var(--text-primary, #171717);
  outline: none;
  transition: border-color 0.15s ease;
  box-sizing: border-box;
}

.fp-search-input:focus {
  border-color: var(--accent, #facc15);
  box-shadow: 0 0 0 2px rgba(250, 204, 21, 0.15);
}

[data-theme="dark"] .fp-search-input {
  background: var(--bg-surface, #262626);
  border-color: var(--border-color, #404040);
  color: var(--text-primary, #fafafa);
}

/* ── Tabs ───────────────────────────────────────────────────────── */
.fp-tabs {
  display: flex;
  gap: 4px;
  padding: 0 16px 8px;
}

.fp-tab {
  flex: 1;
  padding: 8px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  border: 1px solid var(--border-color, #d4d4d4);
  background: var(--bg-primary, #ffffff);
  color: var(--text-secondary, #525252);
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.fp-tab:hover:not(.fp-tab-active) {
  background: var(--bg-hover, #fafafa);
}

.fp-tab.fp-tab-active {
  background: transparent;
  color: var(--accent, #facc15);
  border-color: transparent;
  border-bottom: 2px solid var(--accent, #facc15);
  border-radius: 0;
}

[data-theme="dark"] .fp-tab {
  background: var(--bg-surface, #262626);
  border-color: var(--border-color, #404040);
  color: var(--text-muted, #737373);
}

[data-theme="dark"] .fp-tab.fp-tab-active {
  background: transparent;
  color: var(--accent, #facc15);
  border-color: transparent;
  border-bottom: 2px solid var(--accent, #facc15);
  border-radius: 0;
}

/* ── Field list (left panel) ────────────────────────────────────── */
.fp-field-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 8px 16px;
}

.fp-category-header {
  padding: 10px 8px 4px;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--text-muted, #737373);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.fp-field-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: none;
  color: var(--text-primary, #171717);
  cursor: pointer;
  border-radius: 6px;
  font-size: 0.8125rem;
  text-align: left;
  transition: background 0.12s ease;
}

.fp-field-item:hover {
  background: var(--bg-hover, #fafafa);
}

[data-theme="dark"] .fp-field-item {
  color: var(--text-primary, #fafafa);
}

[data-theme="dark"] .fp-field-item:hover {
  background: var(--bg-hover, #404040);
}

.fp-field-item.fp-field-selected {
  background: rgba(250, 204, 21, 0.08);
}

[data-theme="dark"] .fp-field-item.fp-field-selected {
  background: rgba(250, 204, 21, 0.15);
}

.fp-field-check {
  width: 16px;
  font-size: 0.75rem;
  color: var(--accent, #facc15);
  font-weight: 700;
  flex-shrink: 0;
}

.fp-field-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.fp-field-type-badge {
  font-size: 0.625rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  flex-shrink: 0;
}

.fp-badge-dimension {
  background: rgba(59, 130, 246, 0.12);
  color: #3b82f6;
}

.fp-badge-metric {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
}

[data-theme="dark"] .fp-badge-dimension {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

[data-theme="dark"] .fp-badge-metric {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
}

.fp-field-list-empty {
  padding: 32px 16px;
  text-align: center;
  color: var(--text-muted, #737373);
  font-size: 0.875rem;
}

/* ── Selected fields (right panel) ──────────────────────────────── */
.fp-selected-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 8px 16px;
}

.fp-selected-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  margin-bottom: 4px;
  border: 1px solid var(--border-color, #e5e5e5);
  border-radius: 8px;
  background: var(--bg-primary, #ffffff);
  transition: box-shadow 0.15s ease;
}

.fp-selected-item:hover {
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] .fp-selected-item {
  border-color: var(--border-color, #404040);
  background: var(--bg-surface, #262626);
}

/* ── Drag handles (up/down buttons) ─────────────────────────────── */
.fp-selected-handle {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex-shrink: 0;
}

.fp-move-btn {
  background: none;
  border: none;
  padding: 2px 4px;
  font-size: 0.625rem;
  color: var(--text-muted, #737373);
  cursor: pointer;
  border-radius: 3px;
  line-height: 1;
  transition:
    color 0.12s ease,
    background 0.12s ease;
}

.fp-move-btn:hover:not(:disabled) {
  color: var(--accent, #facc15);
  background: rgba(250, 204, 21, 0.08);
}

.fp-move-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

.fp-selected-info {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.fp-selected-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary, #171717);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

[data-theme="dark"] .fp-selected-label {
  color: var(--text-primary, #fafafa);
}

.fp-remove-btn {
  background: none;
  border: none;
  font-size: 0.875rem;
  color: var(--text-muted, #737373);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  flex-shrink: 0;
  transition:
    color 0.12s ease,
    background 0.12s ease;
}

.fp-remove-btn:hover {
  color: var(--color-error);
  background: rgba(239, 68, 68, 0.08);
}

/* ── Empty state ────────────────────────────────────────────────── */
.fp-selected-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
}

.fp-selected-empty-icon {
  font-size: 2rem;
  margin-bottom: 8px;
}

.fp-selected-empty-text {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted, #737373);
}

/* ── Fields toolbar button ──────────────────────────────────────── */
.explore-fields-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--accent, #facc15);
  border-radius: 8px;
  background: rgba(250, 204, 21, 0.08);
  color: var(--accent, #facc15);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.explore-fields-btn:hover {
  background: var(--accent, #facc15);
  color: var(--accent-text, #171717);
}

/* ── Field summary in toolbar ───────────────────────────────────── */
.explore-field-summary {
  font-size: 0.8125rem;
  color: var(--text-secondary, #525252);
  padding: 4px 0;
}