/* =============================================================================
   PO Review - Site Styles (refactored)
   Plain CSS, no build step. Imports tokens.css first via base.html.
   ============================================================================= */

/* --------------------------------------------------------------------------- */
/* Base layout */
/* --------------------------------------------------------------------------- */
html, body {
  height: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--color-grey-100);
  color: var(--color-navy);
  margin: 0;
  display: flex;
  flex-direction: column;
}

.content-wrapper {
  flex: 1 0 auto;
}

.app-footer {
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------- */
/* Top navigation */
/* --------------------------------------------------------------------------- */
.navbar {
  background: var(--color-white);
  border-bottom: 4px solid var(--color-red);
  box-shadow: var(--shadow-sm);
  min-height: var(--header-height);
}

.btn-logout {
  background: var(--color-red);
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  border: none;
  border-radius: var(--border-radius-md);
  padding: var(--space-2) var(--space-3);
  transition: background var(--transition-fast);
}

.btn-logout:hover,
.btn-logout:focus-visible {
  background: #b3002a;
  color: var(--color-white);
}

.btn-help {
  background-color: var(--color-accent-blue);
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--border-radius-md);
  border: none;
  padding: var(--space-2) var(--space-3);
  margin-right: var(--space-4);
  transition: background var(--transition-fast);
}

.btn-help:hover,
.btn-help:focus-visible {
  background-color: #0053ba;
  color: var(--color-white);
}

.navbar-toggler {
  border: var(--border-width) solid var(--color-grey-300);
  border-radius: var(--border-radius-md);
  padding: var(--space-2);
}

.navbar-toggler:focus-visible {
  box-shadow: var(--shadow-focus);
}

/* --------------------------------------------------------------------------- */
/* Skip link and focus-visible */
/* --------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 1100;
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--border-radius-md);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

:focus-visible {
  outline: 2px solid var(--color-accent-blue);
  outline-offset: 2px;
}

a:focus-visible,
button:focus-visible,
[tabindex]:not([tabindex="-1"]):focus-visible {
  box-shadow: var(--shadow-focus);
}

/* --------------------------------------------------------------------------- */
/* Main header banner */
/* --------------------------------------------------------------------------- */
.page-header-banner {
  background: var(--color-white);
  border-bottom: 4px solid var(--color-red);
  position: relative;
  overflow: hidden;
}

.page-header-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(4, 30, 66, 0.04) 25%, transparent 25%) -1rem 0,
    linear-gradient(225deg, rgba(4, 30, 66, 0.04) 25%, transparent 25%) -1rem 0,
    linear-gradient(315deg, rgba(4, 30, 66, 0.04) 25%, transparent 25%),
    linear-gradient(45deg, rgba(4, 30, 66, 0.04) 25%, transparent 25%);
  background-size: 2rem 2rem;
  opacity: 0.6;
  pointer-events: none;
}

.page-title {
  position: relative;
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  margin: 0;
  padding: var(--space-4) 0;
}

/* --------------------------------------------------------------------------- */
/* Subnav */
/* --------------------------------------------------------------------------- */
.subnav {
  background: var(--color-white);
  border-bottom: var(--border-width) solid var(--color-grey-300);
  padding-left: var(--space-4);
}

.subnav .nav-pills {
  padding: var(--space-2) var(--space-4);
  flex-wrap: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.subnav .nav-pills .nav-link {
  color: var(--color-navy);
  font-weight: var(--font-weight-semibold);
  background: transparent;
  border-radius: 0;
  margin-right: var(--space-2);
  white-space: nowrap;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  border-bottom: 3px solid transparent;
}

.subnav .nav-pills .nav-link:hover,
.subnav .nav-pills .nav-link:focus-visible {
  background: var(--subnav-hover);
}

.subnav .nav-pills .nav-link.active {
  color: var(--color-red) !important;
  border: none;
  border-bottom: 3px solid var(--color-red);
  background: transparent !important;
}

/* --------------------------------------------------------------------------- */
/* Breadcrumb and footer */
/* --------------------------------------------------------------------------- */
.app-breadcrumb {
  background: var(--color-grey-50);
  border-bottom: var(--border-width) solid var(--color-grey-200);
}

.app-footer {
  background: var(--color-white);
  border-top: var(--border-width) solid var(--color-grey-300);
  padding: var(--space-4) 0;
  color: var(--color-grey-600);
  font-size: var(--text-sm);
}

.app-footer a {
  color: var(--color-red);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
}

.app-footer a:hover,
.app-footer a:focus-visible {
  text-decoration: underline;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0 var(--space-4);
  flex-wrap: wrap;
  gap: var(--space-2);
}

.footer-timestamp {
  font-size: var(--text-xs);
  color: var(--color-grey-500);
}

/* --------------------------------------------------------------------------- */
/* KPI cards */
/* --------------------------------------------------------------------------- */
.kpi-card {
  background: var(--color-white);
  border-left: 6px solid var(--color-red);
  box-shadow: var(--shadow-sm);
  border-radius: var(--border-radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  height: 100%;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.kpi-card:hover,
.kpi-card:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.kpi-label {
  font-size: var(--text-sm);
  color: var(--color-grey-600);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-1);
}

.kpi-value {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  line-height: var(--line-height-tight);
}

.kpi-delta {
  font-size: var(--text-xs);
  color: var(--color-grey-600);
  margin-top: var(--space-1);
}

.progress-bar {
  background: var(--color-red);
}

/* --------------------------------------------------------------------------- */
/* Tables — generic, non-DataTable specific */
/* --------------------------------------------------------------------------- */
.table-card {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.table-card .table {
  margin-bottom: 0;
}

.table-card thead th {
  background: var(--color-navy);
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-sm);
  border-bottom: 2px solid var(--color-red);
  white-space: nowrap;
}

.table-card tbody tr:nth-child(even) {
  background: var(--color-grey-100);
}

.table-card tbody tr:hover,
.table-card tbody tr:focus-within {
  background: var(--hover-row);
}

.table-card td,
.table-card th {
  padding: var(--space-3) var(--space-4);
  vertical-align: middle;
}

.table-cell--numeric {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.table-cell--icon,
.table-cell--control {
  text-align: center;
  width: 3rem;
}

.table-cell--text {
  text-align: left;
}

/* DataTable wrapper class, scoped to avoid global rule changes */
.table--data-loaded .dataTables_wrapper {
  padding: 0;
}

/* Sticky headers for any table with sticky class */
.table--sticky thead th {
  position: sticky;
  top: 0;
  z-index: 5;
}

/* Expand/Collapse control */
td.details-control,
th.details-control {
  cursor: pointer;
  text-align: center;
  width: 3rem;
}

td.details-control::before {
  content: "+";
  font-family: var(--font-mono);
  color: var(--color-navy);
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
}

tr.shown td.details-control::before {
  content: "−";
  color: var(--color-red);
}

/* --------------------------------------------------------------------------- */
/* Status badges */
/* --------------------------------------------------------------------------- */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--border-radius-md);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  border: var(--border-width) solid transparent;
}

.status-badge .status-icon {
  font-size: 0.9em;
}

.status-badge--new {
  color: var(--color-grey-700);
  background: var(--status-new-bg);
  border-color: var(--color-grey-300);
}

.status-badge--in-progress {
  color: var(--status-in-progress);
  background: var(--status-in-progress-bg);
  border-color: rgba(0, 105, 217, 0.25);
}

.status-badge--pending {
  color: var(--status-pending);
  background: var(--status-pending-bg);
  border-color: rgba(179, 89, 0, 0.25);
}

.status-badge--completed {
  color: var(--status-completed);
  background: var(--status-completed-bg);
  border-color: rgba(25, 135, 84, 0.25);
}

.status-badge--overdue {
  color: var(--status-overdue);
  background: var(--status-overdue-bg);
  border-color: rgba(213, 0, 50, 0.25);
}

/* --------------------------------------------------------------------------- */
/* Child-row card and inner tables */
/* --------------------------------------------------------------------------- */
.child-card {
  background: var(--color-white);
  border-left: 4px solid var(--color-red);
  padding: var(--space-3);
  box-shadow: var(--shadow-sm);
  margin: var(--space-4) 0;
  border-radius: var(--border-radius-md);
}

.child-card .table-responsive {
  max-height: 300px;
  overflow-y: auto;
}

.child-card thead th,
.export-child thead th {
  background: var(--color-white) !important;
  color: var(--color-navy) !important;
  font-weight: var(--font-weight-semibold) !important;
  border-bottom: 2px solid var(--color-red) !important;
  position: sticky;
  top: 0;
  z-index: 2;
}

/* --------------------------------------------------------------------------- */
/* Cell highlights */
/* --------------------------------------------------------------------------- */
.bg-danger-subtle  { background: var(--color-danger-bg) !important; }
.bg-warning-subtle { background: var(--color-warning-bg) !important; }
.bg-success-subtle { background: var(--color-success-bg) !important; }
.bg-info-subtle    { background: var(--color-info-bg) !important; }

.cell-mismatch {
  background: #fff9d6 !important;
}

/* --------------------------------------------------------------------------- */
/* Action cells */
/* --------------------------------------------------------------------------- */
.action-cell {
  text-align: left;
  font-size: var(--text-sm);
  line-height: var(--line-height-normal);
}

.action-cell strong {
  font-weight: var(--font-weight-semibold);
}

.action-cell ul li {
  margin-bottom: var(--space-3);
}

/* --------------------------------------------------------------------------- */
/* Progress ring */
/* --------------------------------------------------------------------------- */
.progress-ring {
  position: relative;
  width: 52px;
  height: 52px;
  margin: 0 auto;
}

.progress-ring svg {
  width: 52px;
  height: 52px;
}

.progress-ring svg circle {
  fill: none;
  stroke-width: 6;
}

.progress-ring-bg {
  stroke: var(--color-grey-200) !important;
}

.progress-ring-value {
  stroke-linecap: round;
  transition: stroke-dasharray 0.6s ease, stroke 0.3s ease;
}

.progress-ring-value.low {
  stroke: var(--color-danger) !important;
}

.progress-ring-value.medium {
  stroke: var(--color-warning) !important;
}

.progress-ring-value.high {
  stroke: var(--color-success) !important;
}

.progress-ring-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
}

/* --------------------------------------------------------------------------- */
/* Toggle icons and search guide */
/* --------------------------------------------------------------------------- */
.toggle-btn {
  color: var(--color-navy);
  font-size: var(--text-base);
}

.toggle-icon {
  font-size: var(--text-xl);
  color: var(--color-red);
  transition: transform var(--transition-fast);
}

.search-guide-wrapper {
  position: absolute;
  display: none;
  flex-direction: column;
  align-items: center;
  z-index: 1070;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
  pointer-events: none;
}

.search-guide-arrow-icon {
  font-size: 2.8rem;
  color: var(--color-red);
  text-shadow: 0 1px 3px rgba(0,0,0,0.2);
  animation: pointToSearchAnimation 1.5s ease-in-out infinite alternate;
}

.search-guide-message {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--border-radius-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-md);
  margin-top: -5px;
  text-align: center;
  white-space: nowrap;
}

@keyframes pointToSearchAnimation {
  0% { transform: translateY(0px); }
  50% { transform: translateY(8px); }
  100% { transform: translateY(0px); }
}

/* --------------------------------------------------------------------------- */
/* Loading spinner and skeletons */
/* --------------------------------------------------------------------------- */
#loading-spinner {
  position: fixed;
  inset: 0;
  background-color: rgba(255, 255, 255, 0.7);
  z-index: 1060;
  display: none;
  justify-content: center;
  align-items: center;
}

#loading-spinner .spinner-border {
  width: 3rem;
  height: 3rem;
  color: var(--color-accent-blue);
}

.skeleton {
  background: linear-gradient(90deg, var(--color-grey-200) 25%, var(--color-grey-100) 50%, var(--color-grey-200) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--border-radius-sm);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-2);
}

.skeleton-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
}

.skeleton-card {
  height: 100px;
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--space-4);
}

/* --------------------------------------------------------------------------- */
/* Empty states */
/* --------------------------------------------------------------------------- */
.empty-state {
  text-align: center;
  padding: var(--space-10) var(--space-4);
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
}

.empty-state__icon {
  font-size: var(--text-4xl);
  color: var(--color-grey-400);
  margin-bottom: var(--space-4);
}

.empty-state__title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-2);
}

.empty-state__message {
  color: var(--color-grey-600);
  max-width: 40ch;
  margin: 0 auto var(--space-4);
}

/* --------------------------------------------------------------------------- */
/* Buttons and form helpers */
/* --------------------------------------------------------------------------- */
.btn-brand {
  background: var(--color-red);
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  border: none;
  border-radius: var(--border-radius-md);
  padding: var(--space-2) var(--space-3);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-brand:hover,
.btn-brand:focus-visible {
  background: #b3002a;
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn-brand-secondary {
  background: var(--color-navy);
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  border: none;
  border-radius: var(--border-radius-md);
  padding: var(--space-2) var(--space-3);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-brand-secondary:hover,
.btn-brand-secondary:focus-visible {
  background: #0a2e5c;
  color: var(--color-white);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------- */
/* Print stylesheet kept in separate file but utility helpers here */
/* --------------------------------------------------------------------------- */
@media print {
  .no-print,
  .navbar,
  .subnav,
  .app-footer,
  .btn-help,
  .btn-logout,
  .skip-link {
    display: none !important;
  }

  body {
    background: var(--color-white);
  }

  .content-wrapper {
    flex: none;
  }

  .table-card {
    box-shadow: none;
    border: var(--border-width) solid var(--color-grey-300);
  }
}

/* --------------------------------------------------------------------------- */
/* Responsive helpers */
/* --------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .page-title {
    font-size: var(--text-xl);
  }

  .subnav .nav-pills {
    padding: var(--space-2);
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .table-card .table-responsive {
    border: 0;
  }
}

@media (max-width: 576px) {
  .container-fluid {
    --container-padding: var(--space-3);
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
  }

  .kpi-card {
    padding: var(--space-3);
  }

  .kpi-value {
    font-size: var(--text-xl);
  }
}

/* Dynamic progress bar width from data-width attribute */
/* D-None utility */
.d-none {
  display: none !important;
}

/* ARIA/screen-reader only */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Breadcrumb link colour override */
.app-breadcrumb .breadcrumb a {
  color: var(--color-red);
  text-decoration: none;
}

.app-breadcrumb .breadcrumb a:hover,
.app-breadcrumb .breadcrumb a:focus-visible {
  text-decoration: underline;
}

.app-breadcrumb .breadcrumb-item.active {
  color: var(--color-grey-600);
}

.skeleton-text--random {
  width: 75%;
}


@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; } }