/* ============================================================
   Tool Styles — Cost Calculator v2.1
   File: /assets/css/modules/calculators/financialcalculators/cost-calculator.v2.1.css
   Purpose:
   - Tool-only layout + KPI tiles + work formatting
   - No changes to ub-toolkit.v2.1.css required
   - Mobile-first, 44x44 touch targets, clamp typography
   ============================================================ */

/* Tool-scoped tokens */
:root{
  --cost-radius: 16px;
  --cost-gap: 14px;
  --cost-soft: rgba(0,0,0,.06);
}

/* Main hero layout (inputs + results) */
.ub-cost-hero{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--cost-gap);
}

/* Stack on tablet/mobile */
@media (max-width: 980px){
  .ub-cost-hero{
    grid-template-columns: 1fr;
  }
}

/* Keep forms compact and consistent */
.ub-card--tight .ub-card-title{
  font-size: var(--ub-fs-3);
  font-weight: 950;
  margin: 0 0 8px;
}

/* Input row polish (tool-level, safe) */
.ub-inputrow{
  display:grid;
  grid-template-columns: 1fr minmax(140px, 0.48fr);
  gap: 10px;
  align-items:center;
}
@media (max-width: 520px){
  .ub-inputrow{
    grid-template-columns: 1fr;
  }
}

/* Inline error spacing (tool-level) */
.ub-inline-error{
  margin-top: 6px;
  font-size: 12px;
  color: var(--ub-danger);
  font-weight: 800;
  min-height: 16px;
}

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

/* KPI tiles under results */
.ub-cost-kpis{
  margin-top: 12px;
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
@media (max-width: 520px){
  .ub-cost-kpis{
    grid-template-columns: 1fr;
  }
}

.ub-cost-kpi{
  border: 1px solid var(--ub-border);
  background: var(--ub-surface-2);
  border-radius: var(--cost-radius);
  padding: 10px 12px;
  min-height: 44px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.ub-cost-kpi .k{
  font-size: 11px;
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ub-muted);
  margin-bottom: 4px;
}

.ub-cost-kpi .v{
  font-family: var(--ub-mono);
  font-weight: 950;
  font-size: clamp(16px, 1.1rem + 0.4vw, 20px);
}

/* Details summary focus ring polish */
.ub-collapsible summary{
  cursor:pointer;
  font-weight: 950;
  min-height: 44px;
  display:flex;
  align-items:center;
}
.ub-collapsible summary:focus{
  outline: none;
  box-shadow: 0 0 0 4px var(--ub-focus);
  border-radius: 12px;
}

/* Rail button block helper (tool-only) */
.ub-btn--block{ width: 100%; }

/* Slightly tighter out grid on very small screens */
@media (max-width: 420px){
  .ub-out-grid{
    gap: 10px;
  }
}

/* Dark-mode minor tweak for soft borders */
html.ub-theme-dark .ub-cost-kpi{
  border-color: rgba(255,255,255,.12);
}