/* ============================================================
   components.css — Reusable UI Components
   Sherpa AI Admin Dashboard
   ============================================================ */

/* =============================================================
   STAT CARDS
   ============================================================= */
.stat-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border-light);
  padding: var(--spacing-xl);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-base);
  transition: box-shadow var(--transition-base),
    transform var(--transition-base),
    border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
  border-color: var(--color-border);
}

/* Subtle top accent line */
.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 20px;
}

.stat-card-icon--blue {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.stat-card-icon--green {
  background-color: var(--color-success-light);
  color: var(--color-success);
}

.stat-card-icon--amber {
  background-color: var(--color-warning-light);
  color: var(--color-warning);
}

.stat-card-icon--red {
  background-color: var(--color-danger-light);
  color: var(--color-danger);
}

/* New: purple variant */
.stat-card-icon--purple {
  background-color: var(--color-purple-light);
  color: var(--color-purple);
}

.stat-card-content {
  flex: 1;
  min-width: 0;
}

.stat-card-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-card-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.2;
  margin-top: var(--spacing-xs);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.stat-card-change {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  margin-top: var(--spacing-xs);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.stat-card-change--up {
  color: var(--color-success-dark);
  background: var(--color-success-light);
}

.stat-card-change--down {
  color: var(--color-danger-dark);
  background: var(--color-danger-light);
}

.stat-card-change--neutral {
  color: var(--color-text-tertiary);
  background: var(--color-border-light);
}

/* =============================================================
   DATA TABLE
   ============================================================= */
.data-table-wrapper {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-md);
}

.data-table thead {
  background: var(--color-bg);
}

.data-table thead tr {
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  padding: var(--spacing-sm) var(--spacing-base);
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  user-select: none;
}

.data-table th.sortable {
  cursor: pointer;
  transition: color var(--transition-fast);
}

.data-table th.sortable:hover {
  color: var(--color-text-primary);
}

.data-table th.sorted {
  color: var(--color-primary);
}

.data-table th .sort-icon {
  display: inline-block;
  margin-left: 4px;
  opacity: 0.4;
  font-size: 10px;
}

.data-table th.sorted .sort-icon {
  opacity: 1;
}

.data-table td {
  padding: var(--spacing-md) var(--spacing-base);
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:hover {
  background-color: var(--color-primary-50);
}

.data-table tbody tr.selected {
  background-color: var(--color-primary-100);
}

/* Clickable row */
.data-table tbody tr.clickable {
  cursor: pointer;
}

/* Cell variants */
.data-table .cell-muted {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.data-table .cell-mono {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  letter-spacing: 0.01em;
}

.data-table .cell-actions {
  text-align: right;
  white-space: nowrap;
}

/* =============================================================
   BADGES
   ============================================================= */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  line-height: 1.5;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: currentColor;
  flex-shrink: 0;
}

/* Badge variants */
.badge--pending,
.badge--warning {
  background-color: var(--color-warning-light);
  color: var(--color-warning-dark);
  border: 1px solid var(--color-warning);
}

.badge--answered,
.badge--success {
  background-color: var(--color-success-light);
  color: var(--color-success-dark);
  border: 1px solid var(--color-success);
}

.badge--closed,
.badge--neutral {
  background-color: var(--color-border-light);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.badge--active,
.badge--info {
  background-color: var(--color-primary-light);
  color: var(--color-primary-700);
  border: 1px solid var(--color-primary-100);
}

.badge--danger {
  background-color: var(--color-danger-light);
  color: var(--color-danger-dark);
  border: 1px solid var(--color-danger);
}

/* New: purple for premium/ultra */
.badge--purple {
  background-color: var(--color-purple-light);
  color: var(--color-purple-dark);
  border: 1px solid var(--color-purple-border);
}

/* =============================================================
   BUTTONS
   ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0 var(--spacing-base);
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  line-height: 1;
}

.btn:hover:not(:disabled) {
  background-color: var(--color-bg);
  border-color: var(--color-text-tertiary);
}

.btn:active:not(:disabled) {
  transform: scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Size variants */
.btn-sm {
  height: 30px;
  padding: 0 var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  height: 44px;
  padding: 0 var(--spacing-xl);
  font-size: var(--font-size-base);
}

/* Primary */
.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

/* Danger */
.btn-danger {
  background-color: var(--color-danger);
  border-color: var(--color-danger);
  color: var(--color-text-inverse);
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--color-danger-dark);
  border-color: var(--color-danger-dark);
}

/* Secondary (outline) */
.btn-secondary {
  background-color: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-bg);
  border-color: var(--color-text-tertiary);
  color: var(--color-text-primary);
}

/* Ghost */
.btn-ghost {
  border-color: transparent;
  background-color: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-bg);
  border-color: transparent;
  color: var(--color-text-primary);
}

/* Success */
.btn-success {
  background-color: var(--color-success);
  border-color: var(--color-success);
  color: var(--color-text-inverse);
}

.btn-success:hover:not(:disabled) {
  background-color: var(--color-success-dark);
  border-color: var(--color-success-dark);
}

/* =============================================================
   TOAST NOTIFICATIONS
   ============================================================= */
.toast-container {
  position: fixed;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-base) var(--spacing-lg);
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dropdown);
  border: 1px solid var(--color-border-light);
  min-width: 320px;
  max-width: 420px;
  pointer-events: auto;
  animation: toastSlideIn 0.3s ease both;
}

.toast.removing {
  animation: toastSlideOut 0.2s ease both;
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(100%) translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateX(0) translateY(0);
  }
}

@keyframes toastSlideOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

.toast-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 1px;
}

.toast--success .toast-icon {
  color: var(--color-success);
}

.toast--error .toast-icon {
  color: var(--color-danger);
}

.toast--warning .toast-icon {
  color: var(--color-warning);
}

.toast--info .toast-icon {
  color: var(--color-primary);
}

.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--color-text-primary);
}

.toast-message {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: 2px;
  line-height: 1.4;
}

.toast-close {
  width: 24px;
  height: 24px;
  border: none;
  background: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: color var(--transition-fast),
    background-color var(--transition-fast);
}

.toast-close:hover {
  color: var(--color-text-primary);
  background-color: var(--color-bg);
}

/* Toast progress bar */
.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  animation: toastProgress linear forwards;
}

.toast--success .toast-progress {
  background-color: var(--color-success);
}

.toast--error .toast-progress {
  background-color: var(--color-danger);
}

@keyframes toastProgress {
  from {
    width: 100%;
  }
  to {
    width: 0;
  }
}

/* =============================================================
   MODAL (Generic)
   ============================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  animation: modalOverlayIn 0.2s ease both;
  padding: var(--spacing-xl);
}

@keyframes modalOverlayIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal-overlay.closing {
  animation: modalOverlayOut 0.2s ease both;
}

@keyframes modalOverlayOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

.modal-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 520px;
  max-height: calc(100vh - var(--spacing-4xl));
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modalCardIn 0.3s ease both;
}

@keyframes modalCardIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-overlay.closing .modal-card {
  animation: modalCardOut 0.2s ease both;
}

@keyframes modalCardOut {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
}

.modal-card--sm {
  max-width: 400px;
}

.modal-card--lg {
  max-width: 680px;
}

.modal-card--xl {
  max-width: 900px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--color-border-light);
  flex-shrink: 0;
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast),
    color var(--transition-fast);
  font-size: 18px;
}

.modal-close:hover {
  background-color: var(--color-bg);
  color: var(--color-text-primary);
}

.modal-body {
  padding: var(--spacing-xl);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-base) var(--spacing-xl);
  border-top: 1px solid var(--color-border-light);
  flex-shrink: 0;
}

/* =============================================================
   FORM ELEMENTS
   ============================================================= */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group + .form-group {
  margin-top: var(--spacing-base);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-primary);
}

.form-label-required::after {
  content: ' *';
  color: var(--color-danger);
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0 var(--spacing-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.form-input {
  height: 40px;
}

.form-textarea {
  padding: var(--spacing-md) var(--spacing-base);
  min-height: 100px;
  resize: vertical;
  line-height: 1.5;
}

.form-select {
  height: 40px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8.5L1 3.5h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-tertiary);
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
  border-color: var(--color-text-tertiary);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

.form-input.error,
.form-textarea.error,
.form-select.error {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.08);
}

.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
  background-color: var(--color-bg);
  color: var(--color-text-tertiary);
  cursor: not-allowed;
}

/* Form row for side-by-side fields */
.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-base);
}

/* =============================================================
   PAGINATION
   ============================================================= */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-lg) 0;
}

.pagination-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-text-secondary);
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.pagination-btn:hover:not(:disabled):not(.active) {
  background-color: var(--color-bg);
  border-color: var(--color-text-tertiary);
}

.pagination-btn.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pagination-btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.pagination-ellipsis {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-md);
}

.pagination-info {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-left: var(--spacing-base);
}

/* =============================================================
   EMPTY STATE
   ============================================================= */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4xl) var(--spacing-xl);
  text-align: center;
  animation: emptyStateFadeIn 0.4s ease both;
}

@keyframes emptyStateFadeIn {
  from { opacity: 0; transform: scale(0.97); }
  to   { opacity: 1; transform: scale(1); }
}

.empty-state-icon {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-bg), var(--color-border-light));
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-tertiary);
  font-size: 28px;
}

.empty-state-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
}

.empty-state-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
  max-width: 360px;
  line-height: 1.6;
}

.empty-state-action {
  margin-top: var(--spacing-lg);
}

/* =============================================================
   FILTER BAR
   ============================================================= */
.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-base) var(--spacing-xl);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  flex-wrap: wrap;
}

.filter-bar-search {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 320px;
}

.filter-bar-search-icon {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.filter-bar-search .form-input {
  padding-left: 36px;
  height: 36px;
}

.filter-bar-select {
  height: 36px;
  min-width: 140px;
}

.filter-bar-divider {
  width: 1px;
  height: 24px;
  background-color: var(--color-border);
}

.filter-bar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-50);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.filter-chip-remove {
  width: 14px;
  height: 14px;
  border: none;
  background: none;
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.filter-chip-remove:hover {
  opacity: 1;
}

/* =============================================================
   DETAIL PANEL (split-view, bottom half)
   ============================================================= */
.detail-panel {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.06);
  animation: detailPanelSlideUp 0.25s ease both;
  display: flex;
  flex-direction: column;
  max-height: 50vh;
  overflow: hidden;
}

@keyframes detailPanelSlideUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.detail-panel.closing {
  animation: detailPanelSlideDown 0.2s ease both;
}

@keyframes detailPanelSlideDown {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(16px);
  }
}

.detail-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-base) var(--spacing-xl);
  border-bottom: 1px solid var(--color-border-light);
  flex-shrink: 0;
}

.detail-panel-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
}

.detail-panel-close {
  width: 28px;
  height: 28px;
  border: none;
  background: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast),
    color var(--transition-fast);
}

.detail-panel-close:hover {
  background-color: var(--color-bg);
  color: var(--color-text-primary);
}

.detail-panel-body {
  padding: var(--spacing-xl);
  overflow-y: auto;
  flex: 1;
}

.detail-panel-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-base) var(--spacing-xl);
  border-top: 1px solid var(--color-border-light);
  flex-shrink: 0;
}

/* Detail field rows */
.detail-field {
  display: flex;
  gap: var(--spacing-base);
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.detail-field:last-child {
  border-bottom: none;
}

.detail-field-label {
  width: 120px;
  flex-shrink: 0;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.detail-field-value {
  flex: 1;
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  word-break: break-word;
}

/* =============================================================
   RESPONSIVE GRID UTILITIES
   ============================================================= */
.grid {
  display: grid;
  gap: var(--spacing-xl);
}

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

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

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

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

.grid-cols-6 {
  grid-template-columns: repeat(6, 1fr);
}

.grid-cols-12 {
  grid-template-columns: repeat(12, 1fr);
}

.col-span-2 {
  grid-column: span 2;
}

.col-span-3 {
  grid-column: span 3;
}

.col-span-4 {
  grid-column: span 4;
}

.col-span-6 {
  grid-column: span 6;
}

.col-span-full {
  grid-column: 1 / -1;
}

/* =============================================================
   TABS
   ============================================================= */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  gap: 0;
}

.tab {
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  background: none;
  color: var(--color-text-secondary);
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  font-weight: 500;
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

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

.tab.active {
  color: var(--color-primary);
}

.tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px 1px 0 0;
}

.tab:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

/* =============================================================
   DROPDOWN MENU
   ============================================================= */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 180px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dropdown);
  z-index: var(--z-dropdown);
  padding: var(--spacing-xs) 0;
  animation: dropdownIn 0.15s ease both;
}

@keyframes dropdownIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dropdown-menu.hidden {
  display: none;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-base);
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-family);
}

.dropdown-item:hover {
  background-color: var(--color-bg);
}

.dropdown-item--danger {
  color: var(--color-danger);
}

.dropdown-item--danger:hover {
  background-color: var(--color-danger-light);
}

.dropdown-divider {
  height: 1px;
  background-color: var(--color-border-light);
  margin: var(--spacing-xs) 0;
}

/* =============================================================
   AVATAR
   ============================================================= */
.avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-inverse);
  background-color: var(--color-primary);
  flex-shrink: 0;
}

.avatar-sm {
  width: 24px;
  height: 24px;
  font-size: 10px;
}

.avatar-lg {
  width: 40px;
  height: 40px;
  font-size: var(--font-size-sm);
}

.avatar img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-full);
  object-fit: cover;
}

/* =============================================================
   TOOLTIP
   ============================================================= */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 8px;
  background-color: var(--color-text-primary);
  color: var(--color-text-inverse);
  font-size: var(--font-size-xs);
  font-weight: 500;
  white-space: nowrap;
  border-radius: var(--radius-sm);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

[data-tooltip]:hover::after {
  opacity: 1;
}

/* =============================================================
   CONFIRM DIALOG
   ============================================================= */
.confirm-body {
  text-align: center;
  padding: var(--spacing-base) 0;
}

.confirm-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-base);
  font-size: 24px;
}

.confirm-icon--danger {
  background-color: var(--color-danger-light);
  color: var(--color-danger);
}

.confirm-icon--warning {
  background-color: var(--color-warning-light);
  color: var(--color-warning);
}

.confirm-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
}

.confirm-desc {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-sm);
  line-height: 1.5;
}

/* =============================================================
   BUTTON LOADING STATE
   ============================================================= */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: var(--radius-full);
  animation: spin 0.6s linear infinite;
}

/* =============================================================
   INQUIRY DETAIL PANEL TRANSITIONS
   ============================================================= */
#inquiry-detail-panel {
  transition: opacity 200ms ease;
}

/* Row flash animation for status transitions */
@keyframes rowFlashSuccess {
  0% { background-color: transparent; }
  25% { background-color: var(--color-success-light); }
  100% { background-color: transparent; }
}

.row-flash-success {
  animation: rowFlashSuccess 1.5s ease;
}

/* =============================================================
   KEYBOARD SHORTCUT HINT
   ============================================================= */
.kbd {
  display: inline-block;
  padding: 1px 5px;
  font-size: var(--font-size-xs);
  font-family: 'SF Mono', 'Fira Code', monospace;
  color: var(--color-text-tertiary);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  line-height: 1.4;
}

/* =============================================================
   SPINNER SIZES (inline)
   ============================================================= */
.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}