/* =============================================
   Estadísticas de uso — panel admin
   Render: js/admin/panels/stats_panel.js
   Barras en CSS puro (sin Chart.js): son comparaciones
   de una sola dimensión, no series de tiempo.
   Usa las variables de tema de admin.css.
   ============================================= */

.sts-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.sts-head h3 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.4px;
  color: var(--text);
  line-height: 1.15;
}

.sts-head p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 3px;
  max-width: 70ch;
}

.sts-refresh {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}

.sts-refresh:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.sts-refresh .material-icons-outlined {
  font-size: 17px;
}

/* ── Embudo de usuarios ── */
.sts-funnel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 22px;
}

.sts-funnel-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--step, var(--primary));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 14px 16px;
}

.sts-funnel-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--text-muted);
}

.sts-funnel-value {
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.6px;
  color: var(--text);
  margin-top: 6px;
}

.sts-funnel-foot {
  margin-top: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.sts-funnel-foot b {
  color: var(--step, var(--primary));
  font-weight: 800;
}

/* ── Bloques ── */
.sts-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: 20px 22px;
  margin-bottom: 18px;
}

.sts-block-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.sts-block-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 3px;
  margin-bottom: 18px;
  max-width: 80ch;
}

/* ── Números sueltos (promedio, mediana…) ── */
.sts-numbers {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.sts-number {
  flex: 1 1 120px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 10px 14px;
}

.sts-number-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
}

.sts-number-value {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
  margin-top: 3px;
  font-variant-numeric: tabular-nums;
}

/* ── Barras horizontales ── */
.sts-bars {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.sts-bar-row {
  display: grid;
  grid-template-columns: minmax(120px, 190px) 1fr auto;
  align-items: center;
  gap: 12px;
}

.sts-bar-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sts-bar-track {
  height: 22px;
  background: var(--bg);
  border-radius: 6px;
  overflow: hidden;
}

.sts-bar-fill {
  height: 100%;
  border-radius: 6px;
  background: var(--bar, var(--primary));
  min-width: 2px;
  transition: width .5s ease;
}

.sts-bar-meta {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.sts-bar-meta span {
  font-weight: 600;
  color: var(--text-muted);
}

/* ── Grupos de features ── */
.sts-group {
  margin-bottom: 22px;
}

.sts-group:last-child {
  margin-bottom: 0;
}

.sts-group-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.sts-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.sts-group-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bar, var(--primary));
}

/* ── Tabla de incidentes ── */
.sts-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.sts-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--text-muted);
  padding: 0 10px 8px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.sts-table th.num,
.sts-table td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.sts-table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.sts-table tr:last-child td {
  border-bottom: 0;
}

.sts-table code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: var(--text);
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 5px;
}

.sts-table td.num b {
  color: var(--text);
  font-weight: 800;
}

.sts-hot {
  color: var(--rose) !important;
  font-weight: 800;
}

/* ── Nota metodológica ── */
.sts-note {
  display: flex;
  gap: 10px;
  background: var(--primary-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-secondary);
}

.sts-note .material-icons-outlined {
  font-size: 18px;
  color: var(--primary);
  flex-shrink: 0;
}

.sts-note b {
  color: var(--text);
}

/* =============================================
   Enganche y retención — render: js/admin/panels/stats_engagement.js
   La "lectura" son reglas fijas, no adornos: el color del borde es el tono
   (rojo = atender, ámbar = ojo, verde = va bien). Sin íconos a propósito —
   dos hallazgos del mismo tono repetirían el mismo ícono en la pantalla.
   ============================================= */
.sts-read {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}

.sts-read-card {
  border: 1px solid var(--border);
  border-left: 3px solid var(--tone, var(--primary));
  border-radius: var(--radius-lg);
  background: var(--tone-soft, var(--primary-soft));
  padding: 12px 14px;
}

.sts-t-mal {
  --tone: var(--rose);
  --tone-soft: var(--rose-soft);
}

.sts-t-ojo {
  --tone: var(--orange);
  --tone-soft: var(--orange-soft);
}

.sts-t-bien {
  --tone: var(--green);
  --tone-soft: var(--green-soft);
}

.sts-read-title {
  font-size: 13.5px;
  font-weight: 800;
  letter-spacing: -.2px;
  color: var(--text);
  line-height: 1.3;
}

.sts-read-text {
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-secondary);
  margin-top: 5px;
}

.sts-read-text b {
  color: var(--text);
  font-weight: 700;
}

/* ── Tarjetas de número ── */
.sts-kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.sts-kpi {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--step, var(--primary));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 12px 14px;
}

.sts-kpi-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--text-muted);
}

.sts-kpi-value {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text);
  line-height: 1.1;
  margin-top: 4px;
}

.sts-kpi-foot {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 2px;
}

.sts-chart-wrap {
  position: relative;
  height: 180px;
  margin-top: 18px;
}

/* Segundo renglón dentro de una celda o etiqueta (el 12/34 de una cohorte). */
.sts-sub {
  display: block;
  font-size: 10.5px;
  font-weight: 500;
  color: var(--text-muted);
}

.sts-bar-label .sts-sub {
  display: inline;
}

/* Ventana que todavía no cierra: no es un cero, es un "no se sabe". */
.sts-pend {
  color: var(--text-muted);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .sts-funnel {
    grid-template-columns: 1fr;
  }

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

  .sts-bar-row {
    grid-template-columns: 1fr auto;
    gap: 4px 10px;
  }

  .sts-bar-label {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .sts-head {
    flex-direction: column;
    align-items: flex-start;
    padding-left: 44px;
    /* espacio para el toggle del sidebar */
  }

  .sts-block {
    padding: 16px;
  }

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

  .sts-read,
  .sts-kpis {
    grid-template-columns: 1fr;
  }
}