/* ============================================================
 * Utilities Bunker — Power Factor Calculator v2.1
 * File: /assets/css/modules/electronics/power-factor.v2.1.css
 * Purpose:
 * - Tool-only layout + KPI/readout styling + work formatting
 * - NO changes to ub-toolkit.v2.1.css
 * - Mobile-first, 44x44 touch targets, clamp typography
 * ============================================================ */

/* Tool-scoped tokens */
:root{
  --pf-radius: 16px;
  --pf-gap: 14px;
}

/* ------------------------------
   Hero layout (lab + inputs)
------------------------------ */
.pf-hero{
  display:grid;
  grid-template-columns: 1.10fr 0.90fr;
  gap: var(--pf-gap);
}
@media (max-width: 980px){
  .pf-hero{ grid-template-columns: 1fr; }
}

/* ------------------------------
   Readout "lab" panel
------------------------------ */
.pf-lab{
  background: var(--ub-surface-2);
  border: 1px solid var(--ub-border);
  border-radius: var(--pf-radius);
  padding: 12px;
}
.pf-lab-top{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap: 10px;
  flex-wrap:wrap;
  margin-bottom: 10px;
}
.pf-lab-title{
  font-size: clamp(13px, 1.2vw, 14px);
  font-weight: 950;
  letter-spacing: .01em;
}
.pf-lab-sub{
  font-size: 12px;
  color: var(--ub-muted);
  margin-top: 2px;
}

/* ------------------------------
   KPI tiles
------------------------------ */
.pf-kpis{
  display:flex;
  flex-wrap:wrap;
  gap: 8px;
  justify-content:flex-end;
}
.pf-kpi{
  min-width: 108px;
  padding: 8px 10px;
  border-radius: 14px;
  border: 1px solid var(--ub-border);
  background: var(--ub-card-bg);
}
.pf-kpi .k{
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--ub-muted);
}
.pf-kpi .v{
  font-family: var(--ub-mono);
  font-weight: 950;
  font-size: 14px;
  margin-top: 2px;
}

/* ------------------------------
   Status + solve chips row
------------------------------ */
.pf-pillrow{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: 10px;
  flex-wrap:wrap;
  margin-top: 6px;
}
.pf-status{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--ub-border);
  background: var(--ub-card-bg);
  font-size: 12px;
  font-weight: 950;
  min-height: 44px;
}
.pf-dot{
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ub-muted);
  opacity: .7; /* JS adjusts */
}

.pf-chips{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
@media (max-width: 560px){
  .pf-chips{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.pf-chips .ub-chip{
  min-height: 44px;
  padding: 10px 12px;
}

/* ------------------------------
   Presets row
------------------------------ */
.pf-presets{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin-top: 10px;
}
.pf-presets .ub-chip{
  min-height: 44px;
  padding: 10px 12px;
}

/* ------------------------------
   Work area
------------------------------ */
.pf-work{
  font-family: var(--ub-mono);
  font-size: 13px;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* ------------------------------
   Small screen tweaks
------------------------------ */
@media (max-width: 520px){
  .pf-kpi{ min-width: 96px; }
}

/* ------------------------------
   Accessibility polish
------------------------------ */
.pf-chips .ub-chip:focus,
.pf-presets .ub-chip:focus{
  outline: none;
  box-shadow: 0 0 0 4px var(--ub-focus);
  border-radius: 999px;
}