/* ─── Training Dashboard — scoped styles ─────────────────────────────────────
   Every rule is scoped under .trd-root so nothing leaks into the rest of the
   app (no global `*` or bare-element selectors). Design tokens live as CSS
   variables on the root, mirroring the KPI-Assets settings design system.
   Per-card accent colours are passed in via the inline `--trd-accent` custom
   property, so the card classes stay generic. */

.trd-root {
  /* tokens */
  --trd-primary: #3f88a5;
  --trd-primary-dark: #2f6b83;
  --trd-blue-50: #f0f9ff;
  --trd-blue-100: #e0f2fe;
  --trd-blue-200: #bae6fd;
  --trd-blue-700: #0369a1;
  --trd-slate-50: #f8fafc;
  --trd-slate-100: #f1f5f9;
  --trd-slate-200: #e2e8f0;
  --trd-slate-300: #cbd5e1;
  --trd-slate-400: #94a3b8;
  --trd-slate-500: #64748b;
  --trd-slate-600: #475569;
  --trd-slate-700: #374151;
  --trd-slate-800: #1e293b;
  --trd-slate-900: #0f172a;
  --trd-green-50: #f0fdf4;
  --trd-green-100: #dcfce7;
  --trd-green-200: #bbf7d0;
  --trd-green-600: #16a34a;
  --trd-green-700: #15803d;
  --trd-green-800: #166534;
  --trd-amber-50: #fffbeb;
  --trd-amber-100: #fef3c7;
  --trd-amber-200: #fde68a;
  --trd-amber-300: #fcd34d;
  --trd-amber-600: #d97706;
  --trd-amber-700: #a16207;
  --trd-amber-800: #92400e;
  --trd-red-50: #fef2f2;
  --trd-red-100: #fee2e2;
  --trd-red-200: #fecaca;
  --trd-red-500: #ef4444;
  --trd-red-600: #dc2626;
  --trd-red-700: #b91c1c;
  --trd-red-800: #991b1b;

  --trd-accent: var(--trd-primary);
  --trd-radius: 14px;
  --trd-radius-sm: 10px;
  --trd-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --trd-shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.08);

  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--trd-slate-100);
  min-height: 100vh;
  color: var(--trd-slate-800);
}

.trd-root *,
.trd-root *::before,
.trd-root *::after {
  box-sizing: border-box;
}

.trd-root button {
  font-family: inherit;
}

.trd-root button:focus-visible,
.trd-root select:focus-visible {
  outline: 2px solid var(--trd-primary);
  outline-offset: 2px;
}

.trd-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 28px;
}

/* ─── Page heading ───────────────────────────────────────────────────────── */
.trd-page-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.trd-page-badge {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--trd-primary), var(--trd-primary-dark));
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(63, 136, 165, 0.28);
}
.trd-page-title {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  color: var(--trd-slate-900);
  letter-spacing: -0.2px;
}
.trd-page-subtitle {
  margin: 2px 0 0;
  font-size: 12.5px;
  color: var(--trd-slate-500);
}

/* ─── View toggle (segmented control) ────────────────────────────────────── */
.trd-toolbar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-bottom: 24px;
}
.trd-view-toggle {
  display: inline-flex;
  gap: 3px;
  background: var(--trd-slate-200);
  padding: 3px;
  border-radius: 11px;
}
.trd-seg {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border: none;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--trd-slate-500);
  transition: all 0.15s;
}
.trd-seg:hover { color: var(--trd-slate-700); }
.trd-seg--active {
  background: #fff;
  color: var(--trd-slate-900);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.12);
}
.trd-seg--active .trd-seg-ico { color: var(--trd-primary); }

/* ─── Section card ───────────────────────────────────────────────────────── */
.trd-section {
  background: #fff;
  border: 1px solid var(--trd-slate-200);
  border-radius: var(--trd-radius);
  box-shadow: var(--trd-shadow);
  padding: 22px 24px;
  margin-bottom: 24px;
}
.trd-section-head {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 20px;
}
.trd-section-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--trd-blue-50);
  border: 1.5px solid var(--trd-blue-100);
  color: var(--trd-primary);
  flex-shrink: 0;
}
.trd-section-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--trd-slate-800);
}
.trd-section-sub {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--trd-slate-500);
}

/* ─── Stat card grids ────────────────────────────────────────────────────── */
.trd-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}
.trd-emp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

/* ─── Stat card ──────────────────────────────────────────────────────────── */
.trd-stat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 18px 20px;
  border-radius: var(--trd-radius);
  background: #fff;
  border: 1px solid var(--trd-slate-200);
  box-shadow: var(--trd-shadow);
  overflow: hidden;
  transition: box-shadow 0.18s, transform 0.18s;
}
.trd-stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--trd-accent);
  opacity: 0.9;
}
.trd-stat-card:hover {
  box-shadow: var(--trd-shadow-lg);
  transform: translateY(-1px);
}
.trd-stat-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.trd-stat-title {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--trd-slate-500);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.trd-stat-subtitle {
  display: block;
  margin-top: 2px;
  font-size: 11px;
  font-weight: 500;
  color: var(--trd-slate-400);
  letter-spacing: 0;
}
.trd-stat-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--trd-accent-soft, var(--trd-blue-50));
  color: var(--trd-accent);
}
.trd-stat-value {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--trd-accent);
  letter-spacing: -0.5px;
}
.trd-stat-value-den {
  font-size: 17px;
  font-weight: 600;
  color: var(--trd-slate-400);
}
.trd-stat-cover {
  font-size: 12px;
  color: var(--trd-slate-500);
  margin-top: 4px;
  font-weight: 500;
}
.trd-stat-warn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 5px;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--trd-amber-50);
  border: 1px solid var(--trd-amber-200);
  font-size: 11px;
  font-style: italic;
  color: var(--trd-amber-800);
}
.trd-stat-warn svg { color: var(--trd-amber-600); }
.trd-stat-warn--error {
  background: var(--trd-red-50);
  border-color: var(--trd-red-200);
  color: var(--trd-red-700);
  font-style: normal;
  font-weight: 600;
}
.trd-stat-warn--error svg { color: var(--trd-red-600); }

/* Loading: blur + pulse the stat cards while the analytics request is in flight. */
.trd-loading {
  filter: blur(2.5px);
  opacity: 0.6;
  pointer-events: none;
  user-select: none;
  animation: trd-pulse 1.25s ease-in-out infinite;
}
@keyframes trd-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 0.32; }
}

/* Shown in place of the stat cards when the analytics request fails. */
.trd-stat-error {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  margin-bottom: 18px;
  border-radius: var(--trd-radius);
  background: var(--trd-red-50);
  border: 1px solid var(--trd-red-200);
  color: var(--trd-red-700);
  font-size: 13px;
  font-weight: 500;
}
.trd-stat-error svg { color: var(--trd-red-600); flex-shrink: 0; }
.trd-stat-error button {
  margin-left: auto;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid var(--trd-red-200);
  background: #fff;
  color: var(--trd-red-700);
  font-weight: 600;
  font-size: 12px;
  cursor: pointer;
}
.trd-stat-error button:hover { background: var(--trd-red-100); }
.trd-stat-meta {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--trd-slate-200);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.trd-metric {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 12px;
}
.trd-metric-label { color: var(--trd-slate-500); }
.trd-metric-value { font-weight: 700; color: var(--trd-slate-700); }
.trd-metric-value--blue { color: var(--trd-blue-700); }
.trd-metric-value--green { color: var(--trd-green-700); }
.trd-metric-value--amber { color: var(--trd-amber-700); }
.trd-metric-value--red { color: var(--trd-red-600); }
.trd-metric-value--pink { color: #db2777; }

/* ─── Badges / pills ─────────────────────────────────────────────────────── */
.trd-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 20px;
}
.trd-badge--blue { background: var(--trd-blue-100); color: var(--trd-blue-700); border: 1px solid var(--trd-blue-200); }
.trd-badge--green { background: var(--trd-green-100); color: var(--trd-green-800); border: 1px solid var(--trd-green-200); }
.trd-badge--amber { background: var(--trd-amber-100); color: var(--trd-amber-700); border: 1px solid var(--trd-amber-200); }
.trd-badge--red { background: var(--trd-red-100); color: var(--trd-red-700); border: 1px solid var(--trd-red-200); }
.trd-badge--muted { background: var(--trd-slate-100); color: var(--trd-slate-500); border: 1px solid var(--trd-slate-200); }

/* ─── Tables ─────────────────────────────────────────────────────────────── */
.trd-table-wrap { overflow-x: auto; }
.trd-block { margin-bottom: 26px; }
.trd-block:last-child { margin-bottom: 0; }
.trd-block-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--trd-slate-700);
  margin: 0 0 12px;
}
.trd-block-title svg { color: var(--trd-slate-400); }

.trd-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
  border: 1px solid var(--trd-slate-200);
  border-radius: var(--trd-radius-sm);
  overflow: hidden;
}
.trd-table th,
.trd-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--trd-slate-100);
  border-right: 1px solid var(--trd-slate-100);
  text-align: center;
  vertical-align: top;
}
.trd-table th:last-child,
.trd-table td:last-child { border-right: none; }
.trd-table tr:last-child td { border-bottom: none; }
.trd-table thead th {
  background: var(--trd-slate-50);
  font-weight: 700;
  color: var(--trd-slate-600);
  font-size: 12px;
}
.trd-th-sub {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--trd-slate-400);
  margin-top: 3px;
}
.trd-table .trd-td-label,
.trd-table .trd-th-label {
  text-align: left;
  font-weight: 600;
  color: var(--trd-slate-700);
}
.trd-tr-total td {
  background: var(--trd-slate-50);
  font-weight: 700;
}
.trd-tr:hover td { background: var(--trd-slate-50); }
.trd-tr-total:hover td { background: var(--trd-slate-100); }

.trd-num { font-weight: 600; }
.trd-num--blue { color: #2563eb; }
.trd-num--green { color: var(--trd-green-600); }
.trd-num--red { color: var(--trd-red-600); }
.trd-num--muted { color: var(--trd-slate-400); }
.trd-sep { color: var(--trd-slate-300); margin: 0 4px; }

/* ─── Matrix coverage cell ───────────────────────────────────────────────── */
.trd-principle-key {
  font-weight: 800;
  color: var(--trd-primary);
  font-size: 15px;
  margin-bottom: 3px;
}
.trd-principle-desc {
  font-size: 12.5px;
  color: var(--trd-slate-600);
  line-height: 1.45;
}
.trd-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 10px 8px;
  border-radius: 8px;
}
.trd-cell--yes { background: var(--trd-green-100); }
.trd-cell--no { background: var(--trd-red-100); }
.trd-cell-status { font-size: 13px; font-weight: 700; }
.trd-cell--yes .trd-cell-status,
.trd-cell--yes .trd-cell-num { color: var(--trd-green-700); }
.trd-cell--no .trd-cell-status,
.trd-cell--no .trd-cell-num { color: var(--trd-red-600); }
.trd-cell-num { font-size: 13px; font-weight: 600; }
.trd-cell-hint { font-size: 11px; color: var(--trd-slate-500); }

/* ─── Coverage buckets (principle analysis) ──────────────────────────────── */
.trd-bucket-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.trd-bucket {
  border-radius: var(--trd-radius-sm);
  padding: 16px;
  border: 1px solid transparent;
}
.trd-bucket--high { background: var(--trd-green-50); border-color: var(--trd-green-200); }
.trd-bucket--medium { background: var(--trd-amber-50); border-color: var(--trd-amber-200); }
.trd-bucket--low { background: var(--trd-red-50); border-color: var(--trd-red-200); }
.trd-bucket-title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 12px;
}
.trd-bucket--high .trd-bucket-title { color: var(--trd-green-700); }
.trd-bucket--medium .trd-bucket-title { color: var(--trd-amber-600); }
.trd-bucket--low .trd-bucket-title { color: var(--trd-red-600); }
.trd-bucket-item {
  font-size: 13px;
  line-height: 1.45;
  margin-bottom: 5px;
}
.trd-bucket--high .trd-bucket-item { color: var(--trd-green-800); }
.trd-bucket--medium .trd-bucket-item { color: var(--trd-amber-800); }
.trd-bucket--low .trd-bucket-item { color: var(--trd-red-800); }
.trd-bucket-empty {
  font-size: 13px;
  color: var(--trd-slate-400);
  font-style: italic;
}

/* ─── Filter bar ─────────────────────────────────────────────────────────── */
.trd-filter {
  background: #fff;
  border: 1px solid var(--trd-slate-200);
  border-radius: var(--trd-radius);
  box-shadow: var(--trd-shadow);
  padding: 20px 24px;
  margin-bottom: 24px;
}
.trd-filter-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.trd-filter-title {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--trd-slate-800);
}
.trd-filter-title svg { color: var(--trd-primary); }
.trd-filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  align-items: start;
}
.trd-field { min-width: 200px; }
.trd-label {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 7px;
  font-size: 11px;
  font-weight: 700;
  color: var(--trd-slate-500);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.trd-label svg { color: var(--trd-slate-400); }
.trd-select {
  width: 100%;
  padding: 10px 34px 10px 12px;
  border-radius: var(--trd-radius-sm);
  border: 1.5px solid var(--trd-slate-200);
  font-size: 13px;
  background-color: #fff;
  color: var(--trd-slate-700);
  cursor: pointer;
  font-family: inherit;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2394a3b8'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 9px;
  transition: border-color 0.15s;
}
.trd-select:hover { border-color: var(--trd-slate-300); }
.trd-select:focus { border-color: var(--trd-primary); }

.trd-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--trd-radius-sm);
  border: 1.5px solid var(--trd-slate-200);
  background: #fff;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--trd-slate-600);
  cursor: pointer;
  transition: all 0.15s;
}
.trd-btn:hover { background: var(--trd-slate-50); border-color: var(--trd-slate-300); color: var(--trd-slate-800); }
.trd-btn--clear:hover { border-color: var(--trd-red-200); color: var(--trd-red-600); background: var(--trd-red-50); }

/* ─── Chart card ─────────────────────────────────────────────────────────── */
.trd-chart-card {
  background: #fff;
  border: 1px solid var(--trd-slate-200);
  border-radius: var(--trd-radius);
  box-shadow: var(--trd-shadow);
  padding: 22px 24px;
  margin-bottom: 20px;
}

/* ─── Loading / error ────────────────────────────────────────────────────── */
.trd-state {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
  background: var(--trd-slate-100);
}
.trd-state-box {
  text-align: center;
  padding: 40px 48px;
  background: #fff;
  border-radius: var(--trd-radius);
  border: 1px solid var(--trd-slate-200);
  box-shadow: var(--trd-shadow-lg);
}
.trd-state-box--error { border-color: var(--trd-red-200); }
.trd-spinner {
  width: 46px;
  height: 46px;
  border: 4px solid var(--trd-slate-100);
  border-top-color: var(--trd-primary);
  border-radius: 50%;
  margin: 0 auto 18px;
  animation: trd-spin 0.9s linear infinite;
}
@keyframes trd-spin { to { transform: rotate(360deg); } }
.trd-state-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--trd-slate-600);
}
.trd-state-title--error { color: var(--trd-red-600); }
.trd-state-msg {
  font-size: 13px;
  color: var(--trd-slate-500);
  margin-top: 6px;
}
.trd-state-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  background: var(--trd-red-50);
  color: var(--trd-red-500);
}

/* ─── Empty state ────────────────────────────────────────────────────────── */
.trd-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--trd-slate-400);
  font-size: 13px;
}