/* AC Electricity Cost Calculator — refconhvac.com/ac-electricity-cost-calculator/
   Reuses btu-calc.v7.css for base styles (.btu-calc, .card, .seg, .results, .btu-sticky, .faq, .ref-table, .disclaimer, .callout-tonnage).
   This file adds only the new wrappers/components needed for cost calculation:
   - .currency-row   : currency dropdown + electricity-rate input on one line (custom, not .country-row, to avoid collision with #btu-country on BTU page)
   - .setpoint-tip   : static 1°C-saves-6-8% informational card
   - .savings-card   : inverter-vs-non-inverter comparison card (light background, sits below dark .results panel)
   - Sticky-footer override for this page (emphasise cost figure)
   - Mobile (<640px) stacking for the new pieces
   v1.0: 2026-07-21.
*/

/* Currency + rate row — flex layout for [select currency] [number W/kWh] on one line at >=640px */
.btu-calc .currency-row{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap}
.btu-calc .currency-row > .field-cur{flex:0 0 130px;min-width:120px}
.btu-calc .currency-row > .field-rate{flex:1 1 180px;min-width:160px}
.btu-calc .currency-row .field-cur select,
.btu-calc .currency-row .field-rate input[type=number]{width:100%}
.btu-calc .currency-row .field-cur label,
.btu-calc .currency-row .field-rate label{display:block;font-size:.85rem;font-weight:600;color:#334155;margin-bottom:6px}
.btu-calc .currency-row .field-cur select{padding:14px;font-size:16px;border:2px solid var(--c-line);border-radius:10px;background:#fff;color:var(--c-ink);min-height:48px}
.btu-calc .currency-row .field-cur select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,165,233,.15)}
@media (max-width:639px){
  .btu-calc .currency-row{flex-direction:column;align-items:stretch;gap:10px}
  .btu-calc .currency-row > .field-cur,
  .btu-calc .currency-row > .field-rate{flex:1 1 auto;width:100%;min-width:0}
}

/* Static setpoint tip — light blue info card, sits inside .results or just below it */
.btu-calc .setpoint-tip{display:flex;gap:10px;align-items:flex-start;background:linear-gradient(135deg,#f0f9ff 0%,#e0f2fe 100%);border:1px solid #bae6fd;border-left:5px solid #0ea5e9;border-radius:12px;padding:12px 14px;margin-top:14px;color:#0c4a6e;font-size:.88rem;line-height:1.45}
.btu-calc .setpoint-tip .ico{font-size:1.2rem;line-height:1;flex-shrink:0;margin-top:1px}
.btu-calc .setpoint-tip strong{color:#0369a1}
.btu-calc .setpoint-tip a{color:#0369a1;text-decoration:underline}

/* Inverter vs Non-Inverter savings card — sits BELOW the dark .results panel, so light background */
.btu-calc .savings-card{background:linear-gradient(135deg,#f0fdf4 0%,#dcfce7 100%);border:1px solid #86efac;border-left:5px solid #10b981;border-radius:14px;padding:16px;margin-top:14px;color:#065f46}
.btu-calc .savings-card .savings-headline{font-size:1rem;font-weight:700;color:#065f46;margin:0 0 10px;display:flex;align-items:center;gap:6px}
.btu-calc .savings-card .savings-headline .ico{font-size:1.15rem}
.btu-calc .savings-card .savings-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.btu-calc .savings-card .savings-stat{background:#fff;border:1px solid #bbf7d0;border-radius:10px;padding:10px 12px}
.btu-calc .savings-card .savings-stat.is-winner{border-color:#10b981;background:#ecfdf5}
.btu-calc .savings-card .savings-stat .k{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:#047857;opacity:.85;margin-bottom:2px}
.btu-calc .savings-card .savings-stat .v{font-size:1.1rem;font-weight:700;color:#064e3b;line-height:1.2}
.btu-calc .savings-card .savings-stat .v small{font-size:.78rem;font-weight:600;opacity:.85;margin-left:3px}
.btu-calc .savings-card .savings-foot{margin-top:10px;font-size:.82rem;color:#047857;line-height:1.4}
.btu-calc .savings-card .savings-foot strong{color:#065f46}
@media (max-width:639px){
  .btu-calc .savings-card{padding:12px;border-radius:12px}
  .btu-calc .savings-card .savings-grid{grid-template-columns:1fr;gap:8px}
  .btu-calc .savings-card .savings-stat .v{font-size:1rem}
}

/* Sticky footer override for THIS calculator — emphasise cost ($XX.XX) over kWh */
.btu-calc[data-calc-id="ac_electricity_cost_calc"] .btu-sticky-val span{font-size:1.5rem}
.btu-calc[data-calc-id="ac_electricity_cost_calc"] .btu-sticky-val small{font-size:.85rem;opacity:.85}
.btu-calc[data-calc-id="ac_electricity_cost_calc"] .btu-sticky-tons{margin-left:12px;padding-left:12px;border-left:1px solid rgba(255,255,255,.18)}
@media (max-width:639px){
  .btu-calc[data-calc-id="ac_electricity_cost_calc"] .btu-sticky-val span{font-size:1.2rem}
}

/* Results big-number secondary line (e.g. "= 12.8 kWh/day × 30 days") */
.btu-calc .results .secondary{font-size:.85rem;font-weight:500;opacity:.85;margin:6px 0 0}
.btu-calc .results .secondary small{opacity:.7}

/* On this calculator the .results .big stat below it shows monthly as the primary; keep extra breathing room above the stat grid */
.btu-calc .results .stat.is-primary{background:rgba(16,185,129,.12);border-color:rgba(16,185,129,.4)}
.btu-calc .results .stat.is-primary .v{color:#34d399}

/* This calculator's results row has THREE stats (Daily/Monthly/Seasonal); the base .results .row
   is a 2-col grid (built for the BTU calc's 2 stats), which left Seasonal orphaned half-width.
   Force 3 columns; stack to 1 column on narrow phones. */
.btu-calc[data-calc-id="ac_electricity_cost_calc"] .results .row{grid-template-columns:1fr 1fr 1fr}
@media (max-width:479px){
  .btu-calc[data-calc-id="ac_electricity_cost_calc"] .results .row{grid-template-columns:1fr}
}

/* Mobile: the base .type-label keeps white-space:nowrap, so the long "Custom wattage
   (only used if 'Custom' is selected):" label refused to wrap and forced the card wider
   than the viewport. Let it wrap on this calculator. */
@media (max-width:639px){
  .btu-calc[data-calc-id="ac_electricity_cost_calc"] .type-row .type-label{white-space:normal;line-height:1.35}
}

/* Astra's global #ast-scroll-top floating button is raised above this page's
   sticky footer by the shared btu-calc.v7.css base (so all 3 cluster
   calculators get the same fix). No per-calc override needed. */