/* ============================================================
   COMPONENT LIBRARY
   ============================================================ */

/* ---------------- Page header (used inside every module) ---------------- */

.pf-page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--pf-space-4);
  margin-bottom: var(--pf-space-6);
}

.pf-page-header__title {
  font-size: var(--pf-fs-xl);
  font-weight: var(--pf-fw-semibold);
  margin-bottom: 4px;
}

.pf-page-header__question {
  font-size: var(--pf-fs-sm);
  color: var(--pf-text-secondary);
}

.pf-page-header__actions {
  display: flex;
  gap: var(--pf-space-2);
  flex-shrink: 0;
}

/* ---------------- Buttons ---------------- */

.pf-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--pf-space-2);
  padding: 8px 14px;
  border-radius: var(--pf-radius-md);
  font-size: var(--pf-fs-sm);
  font-weight: var(--pf-fw-medium);
  border: 1px solid transparent;
  transition: background var(--pf-duration-fast) var(--pf-ease), border-color var(--pf-duration-fast) var(--pf-ease);
  white-space: nowrap;
}
.pf-btn svg { width: 15px; height: 15px; }

.pf-btn--primary {
  background: var(--pf-action-600);
  color: #fff;
}
.pf-btn--primary:hover { background: var(--pf-action-700); }

.pf-btn--secondary {
  background: var(--pf-surface);
  border-color: var(--pf-border-strong);
  color: var(--pf-text-primary);
}
.pf-btn--secondary:hover { background: var(--pf-surface-sunken); }

.pf-btn--ghost {
  color: var(--pf-text-secondary);
}
.pf-btn--ghost:hover { background: var(--pf-surface-sunken); color: var(--pf-text-primary); }

.pf-btn--danger {
  background: var(--pf-status-danger);
  color: #fff;
}
.pf-btn--danger:hover { filter: brightness(0.92); }

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

/* ---------------- KPI Card ---------------- */

.pf-kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--pf-space-4);
  margin-bottom: var(--pf-space-6);
}

.pf-kpi-card {
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-lg);
  padding: var(--pf-space-5);
  cursor: pointer;
  transition: border-color var(--pf-duration-fast) var(--pf-ease), box-shadow var(--pf-duration-fast) var(--pf-ease);
}
.pf-kpi-card:hover {
  border-color: var(--pf-border-strong);
  box-shadow: var(--pf-shadow-sm);
}

.pf-kpi-card__label {
  font-size: var(--pf-fs-xs);
  font-weight: var(--pf-fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--pf-text-tertiary);
  margin-bottom: var(--pf-space-2);
}

.pf-kpi-card__value {
  font-size: var(--pf-fs-2xl);
  font-weight: var(--pf-fw-bold);
  letter-spacing: -0.01em;
  line-height: 1;
  margin-bottom: var(--pf-space-2);
}

.pf-kpi-card__footer {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--pf-fs-xs);
  color: var(--pf-text-secondary);
}

.pf-kpi-card__trend {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-weight: var(--pf-fw-semibold);
}
.pf-kpi-card__trend svg { width: 12px; height: 12px; }
.pf-kpi-card__trend--up { color: var(--pf-status-good); }
.pf-kpi-card__trend--down { color: var(--pf-status-danger); }
.pf-kpi-card__trend--flat { color: var(--pf-text-tertiary); }

.pf-kpi-card--accent-good { border-left: 3px solid var(--pf-status-good); }
.pf-kpi-card--accent-caution { border-left: 3px solid var(--pf-status-caution); }
.pf-kpi-card--accent-danger { border-left: 3px solid var(--pf-status-danger); }

/* ---------------- Status Badge — modeled on a physical scaffold tag ---------------- */

.pf-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: var(--pf-radius-tag);
  font-size: 11px;
  font-weight: var(--pf-fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.6;
  white-space: nowrap;
}
.pf-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 1px;
  flex-shrink: 0;
}

.pf-tag--good { background: var(--pf-status-good-bg); color: var(--pf-status-good); }
.pf-tag--good::before { background: var(--pf-status-good); }

.pf-tag--caution { background: var(--pf-status-caution-bg); color: var(--pf-status-caution); }
.pf-tag--caution::before { background: var(--pf-status-caution); }

.pf-tag--danger { background: var(--pf-status-danger-bg); color: var(--pf-status-danger); }
.pf-tag--danger::before { background: var(--pf-status-danger); }

.pf-tag--neutral { background: var(--pf-status-neutral-bg); color: var(--pf-status-neutral); }
.pf-tag--neutral::before { background: var(--pf-status-neutral); }

.pf-tag--info { background: var(--pf-status-info-bg); color: var(--pf-status-info); }
.pf-tag--info::before { background: var(--pf-status-info); }

/* ---------------- Progress Bar ---------------- */

.pf-progress {
  display: flex;
  align-items: center;
  gap: var(--pf-space-3);
}
.pf-progress__track {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: var(--pf-surface-sunken);
  overflow: hidden;
}
.pf-progress__fill {
  height: 100%;
  border-radius: 3px;
  background: var(--pf-action-600);
  transition: width var(--pf-duration-base) var(--pf-ease);
}
.pf-progress__fill--good { background: var(--pf-status-good); }
.pf-progress__fill--caution { background: var(--pf-status-caution); }
.pf-progress__fill--danger { background: var(--pf-status-danger); }
.pf-progress__label {
  font-size: var(--pf-fs-xs);
  font-weight: var(--pf-fw-semibold);
  color: var(--pf-text-secondary);
  min-width: 32px;
  text-align: right;
}

/* ---------------- Panel (generic card container) ---------------- */

.pf-panel {
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-lg);
  margin-bottom: var(--pf-space-5);
}
.pf-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--pf-space-4) var(--pf-space-5);
  border-bottom: 1px solid var(--pf-border);
}
.pf-panel__title {
  font-size: var(--pf-fs-md);
  font-weight: var(--pf-fw-semibold);
}
.pf-panel__subtitle {
  font-size: var(--pf-fs-xs);
  color: var(--pf-text-tertiary);
  margin-top: 2px;
}
.pf-panel__body {
  padding: var(--pf-space-5);
}
.pf-panel__body--flush { padding: 0; }

/* ---------------- Data Table ---------------- */

.pf-table-wrap { overflow-x: auto; }

.pf-table {
  width: 100%;
  font-size: var(--pf-fs-sm);
}
.pf-table thead th {
  text-align: left;
  font-size: 11px;
  font-weight: var(--pf-fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--pf-text-tertiary);
  padding: var(--pf-space-3) var(--pf-space-5);
  border-bottom: 1px solid var(--pf-border);
  white-space: nowrap;
}
.pf-table tbody td {
  padding: var(--pf-space-3) var(--pf-space-5);
  border-bottom: 1px solid var(--pf-border);
  color: var(--pf-text-primary);
  vertical-align: middle;
}
.pf-table tbody tr {
  cursor: pointer;
  transition: background var(--pf-duration-fast) var(--pf-ease);
}
.pf-table tbody tr:hover { background: var(--pf-surface-sunken); }
.pf-table tbody tr:last-child td { border-bottom: none; }
.pf-table td.pf-table__num { text-align: right; font-variant-numeric: tabular-nums; }
.pf-table__primary { font-weight: var(--pf-fw-medium); }
.pf-table__meta { color: var(--pf-text-tertiary); font-size: var(--pf-fs-xs); }

/* ---------------- Timeline ---------------- */

.pf-timeline { padding: var(--pf-space-5); }
.pf-timeline__item {
  display: flex;
  gap: var(--pf-space-4);
  position: relative;
  padding-bottom: var(--pf-space-5);
}
.pf-timeline__item:last-child { padding-bottom: 0; }
.pf-timeline__rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}
.pf-timeline__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--pf-action-600);
  border: 2px solid var(--pf-surface);
  box-shadow: 0 0 0 1px var(--pf-border-strong);
  flex-shrink: 0;
  margin-top: 3px;
}
.pf-timeline__line {
  width: 1px;
  flex: 1;
  background: var(--pf-border);
  margin-top: 4px;
}
.pf-timeline__content { flex: 1; padding-bottom: 2px; }
.pf-timeline__time {
  font-size: var(--pf-fs-xs);
  font-weight: var(--pf-fw-semibold);
  color: var(--pf-text-tertiary);
  margin-bottom: 2px;
}
.pf-timeline__text { font-size: var(--pf-fs-sm); color: var(--pf-text-primary); }

/* ---------------- Activity Feed ---------------- */

.pf-activity { padding: var(--pf-space-2) 0; }
.pf-activity__item {
  display: flex;
  gap: var(--pf-space-3);
  padding: var(--pf-space-3) var(--pf-space-5);
  transition: background var(--pf-duration-fast) var(--pf-ease);
}
.pf-activity__item:hover { background: var(--pf-surface-sunken); }
.pf-activity__icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--pf-action-100);
  color: var(--pf-action-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.pf-activity__icon svg { width: 14px; height: 14px; }
.pf-activity__body { flex: 1; min-width: 0; }
.pf-activity__text { font-size: var(--pf-fs-sm); }
.pf-activity__text b { font-weight: var(--pf-fw-semibold); }
.pf-activity__meta { font-size: var(--pf-fs-xs); color: var(--pf-text-tertiary); margin-top: 2px; }

/* ---------------- Quick Actions ---------------- */

.pf-quick-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--pf-space-3);
}
.pf-quick-action {
  display: flex;
  align-items: center;
  gap: var(--pf-space-3);
  padding: var(--pf-space-4);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-md);
  background: var(--pf-surface);
  transition: border-color var(--pf-duration-fast) var(--pf-ease), background var(--pf-duration-fast) var(--pf-ease);
}
.pf-quick-action:hover { border-color: var(--pf-action-600); background: var(--pf-action-100); }
.pf-quick-action__icon {
  width: 34px;
  height: 34px;
  border-radius: var(--pf-radius-md);
  background: var(--pf-surface-sunken);
  color: var(--pf-action-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.pf-quick-action__icon svg { width: 16px; height: 16px; }
.pf-quick-action__label { font-size: var(--pf-fs-sm); font-weight: var(--pf-fw-medium); text-align: left; }

/* ---------------- Filter Panel ---------------- */

.pf-filters {
  display: flex;
  align-items: center;
  gap: var(--pf-space-3);
  flex-wrap: wrap;
  margin-bottom: var(--pf-space-5);
}
.pf-filter-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.pf-filter-field label {
  font-size: 11px;
  font-weight: var(--pf-fw-semibold);
  color: var(--pf-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.pf-filter-select,
.pf-filter-input {
  border: 1px solid var(--pf-border-strong);
  border-radius: var(--pf-radius-md);
  padding: 7px var(--pf-space-3);
  font-size: var(--pf-fs-sm);
  background: var(--pf-surface);
  min-width: 160px;
}
.pf-filter-select:focus, .pf-filter-input:focus {
  outline: none;
  border-color: var(--pf-action-600);
}
.pf-filters__clear {
  align-self: flex-end;
  font-size: var(--pf-fs-xs);
  color: var(--pf-action-600);
  font-weight: var(--pf-fw-medium);
  padding: 8px 4px;
}

/* ---------------- Loading Skeleton ---------------- */

.pf-skeleton {
  background: linear-gradient(90deg, var(--pf-surface-sunken) 25%, #E4E8EC 37%, var(--pf-surface-sunken) 63%);
  background-size: 400% 100%;
  animation: pf-skeleton-shimmer 1.4s ease infinite;
  border-radius: var(--pf-radius-sm);
}
@keyframes pf-skeleton-shimmer {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}
.pf-skeleton--text { height: 12px; margin-bottom: 8px; }
.pf-skeleton--title { height: 20px; width: 40%; margin-bottom: 16px; }
.pf-skeleton--card { height: 96px; border-radius: var(--pf-radius-lg); }
.pf-skeleton--row { height: 44px; margin-bottom: 1px; }
.pf-skeleton-row-group .pf-skeleton--row:last-child { margin-bottom: 0; }

/* ---------------- Empty State ---------------- */

.pf-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--pf-space-12) var(--pf-space-6);
  color: var(--pf-text-secondary);
}
.pf-empty__icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--pf-surface-sunken);
  color: var(--pf-text-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--pf-space-4);
}
.pf-empty__icon svg { width: 20px; height: 20px; }
.pf-empty__title { font-size: var(--pf-fs-md); font-weight: var(--pf-fw-semibold); color: var(--pf-text-primary); margin-bottom: 4px; }
.pf-empty__text { font-size: var(--pf-fs-sm); max-width: 320px; margin-bottom: var(--pf-space-4); }

/* ---------------- Modal ---------------- */

.pf-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(14, 25, 34, 0.5);
  z-index: var(--pf-z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--pf-space-6);
}

.pf-modal {
  background: var(--pf-surface);
  border-radius: var(--pf-radius-lg);
  box-shadow: var(--pf-shadow-modal);
  width: 100%;
  max-width: 520px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  z-index: var(--pf-z-modal);
}
.pf-modal--lg { max-width: 780px; }

.pf-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--pf-space-5);
  border-bottom: 1px solid var(--pf-border);
  flex-shrink: 0;
}
.pf-modal__title { font-size: var(--pf-fs-lg); font-weight: var(--pf-fw-semibold); }
.pf-modal__close {
  width: 28px; height: 28px;
  border-radius: var(--pf-radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--pf-text-tertiary);
}
.pf-modal__close:hover { background: var(--pf-surface-sunken); color: var(--pf-text-primary); }
.pf-modal__close svg { width: 16px; height: 16px; }

.pf-modal__body {
  padding: var(--pf-space-5);
  overflow-y: auto;
}
.pf-modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--pf-space-3);
  padding: var(--pf-space-4) var(--pf-space-5);
  border-top: 1px solid var(--pf-border);
  flex-shrink: 0;
}

/* ---------------- Confirmation Dialog (compact modal variant) ---------------- */

.pf-confirm { max-width: 400px; text-align: left; }
.pf-confirm__icon {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--pf-space-4);
}
.pf-confirm__icon svg { width: 18px; height: 18px; }
.pf-confirm__icon--danger { background: var(--pf-status-danger-bg); color: var(--pf-status-danger); }
.pf-confirm__icon--caution { background: var(--pf-status-caution-bg); color: var(--pf-status-caution); }
.pf-confirm__text { font-size: var(--pf-fs-sm); color: var(--pf-text-secondary); }

/* ---------------- Section grid helpers used across modules ---------------- */

.pf-grid-2 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--pf-space-5);
  align-items: start;
}
@media (max-width: 980px) {
  .pf-grid-2 { grid-template-columns: 1fr; }
}

.pf-toast-region {
  position: fixed;
  bottom: var(--pf-space-6);
  right: var(--pf-space-6);
  z-index: var(--pf-z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--pf-space-2);
}
.pf-toast {
  background: var(--pf-structure-900);
  color: #fff;
  padding: var(--pf-space-3) var(--pf-space-4);
  border-radius: var(--pf-radius-md);
  font-size: var(--pf-fs-sm);
  box-shadow: var(--pf-shadow-lg);
  min-width: 240px;
}