/* ==========================================================================
   Heatpump Economics — Calculator & tool UI (shared across calculator pages)
   ========================================================================== */

.calc { padding-bottom: var(--space-9); border-top: 1px solid var(--line); padding-top: var(--space-7); }

/* Global inputs bar */
.calc-globals {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--space-4);
  padding: var(--space-5); background: var(--card); border: 1px solid var(--line); margin-bottom: var(--space-6);
}
.calc-globals[hidden] { display: none; }

/* Symmetric row-based input layout (used by battery-vs-generator.html) —
   every row keeps a fixed field count so nothing shifts as ZIP/model
   selections populate. */
.calc-globals-rows { display: flex; flex-direction: column; gap: var(--space-5); }

/* Card wrapper for a group of input rows — same neutral fill as every other
   panel on the site (.calc-globals, .hp-panel, .calc-chart, etc.), just
   scoped around a subset of fields instead of the whole input area. */
.calc-card {
  background: var(--card); border: 1px solid var(--line);
  padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-4);
}
.calc-row { display: grid; gap: var(--space-4); }
.calc-row-3 { grid-template-columns: 1fr 1fr 1fr; }
.calc-row-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 700px) {
  .calc-row-3, .calc-row-2 { grid-template-columns: 1fr; }
}

.calc-field { display: flex; flex-direction: column; gap: 0.4rem; }
.calc-field[hidden] { display: none; }
.calc-select:disabled { background-image: none; padding-right: 0.75rem; }
.calc-field-range .calc-label { display: flex; justify-content: space-between; align-items: baseline; }
.calc-years-display { font-family: var(--font-mono); font-weight: 500; color: var(--volt); }

.calc-label {
  font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute);
}

.calc-select, .calc-input {
  font-family: var(--font-sans); font-size: 0.9375rem; font-weight: 500; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line-strong); border-radius: 0;
  padding: 0.6rem 0.75rem; width: 100%; appearance: none; -webkit-appearance: none;
  transition: border-color var(--duration) var(--ease);
}

.calc-select {
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%; background-size: 6px 6px;
  background-repeat: no-repeat; padding-right: 2rem; cursor: pointer;
  text-overflow: ellipsis; white-space: nowrap; overflow: hidden;
}

.calc-select:disabled { color: var(--mute); cursor: not-allowed; background-color: var(--line); }
.calc-select:focus, .calc-input:focus { outline: none; border-color: var(--ink); }

.calc-input[type="number"]::-webkit-outer-spin-button,
.calc-input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.calc-input[type="number"] { -moz-appearance: textfield; }

.calc-input-prefix { display: flex; align-items: stretch; border: 1px solid var(--line-strong); background: var(--paper); }
.calc-input-prefix span {
  display: flex; align-items: center; padding: 0 0.5rem 0 0.75rem; font-family: var(--font-mono);
  font-size: 0.9375rem; color: var(--mute); white-space: nowrap; flex: 0 0 auto;
}
.calc-input-prefix .calc-input { border: none; padding-left: 0; background: transparent; }
.calc-input-prefix:focus-within { border-color: var(--ink); }
.calc-select-inline {
  flex: 0 0 auto; border: none; border-left: 1px solid var(--line); background: var(--surface-alt, var(--paper));
  font-family: var(--font-mono); font-size: 0.8125rem; color: var(--ink); padding: 0 0.6rem; cursor: pointer;
}
.calc-select-inline:focus { outline: 2px solid var(--volt); outline-offset: -2px; }

.calc-range { -webkit-appearance: none; appearance: none; width: 100%; height: 4px; background: var(--line); cursor: pointer; padding: 0; border: none; }
.calc-range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 18px; height: 18px; background: var(--volt);
  border-radius: 50%; cursor: pointer; border: 2px solid var(--paper); box-shadow: 0 0 0 1px var(--ink);
}
.calc-range::-moz-range-thumb {
  width: 18px; height: 18px; background: var(--volt); border-radius: 50%;
  border: 2px solid var(--paper); box-shadow: 0 0 0 1px var(--ink);
}

/* Ownership horizon control relocated into the compare panel header */
.compare-meta-range {
  display: flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute);
}
.compare-meta-range .calc-range { width: 130px; }
.compare-meta-range .calc-years-display { color: var(--volt); font-weight: 500; }
@media (max-width: 560px) {
  .compare-meta-range { order: 3; width: 100%; }
  .compare-meta-range .calc-range { flex: 1 1 auto; }
}

/* System pickers (equivalent of "vehicle pickers") */
.calc-vehicles { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-bottom: var(--space-6); }
.calc-vehicles-single { grid-template-columns: 1fr; }
.calc-vehicle { background: var(--card); padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-4); }
.calc-vehicle-head { display: flex; flex-direction: column; gap: var(--space-2); padding-bottom: var(--space-3); border-bottom: 1px solid var(--line); }
.calc-vehicle-title { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.015em; }

.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.calc-grid-money { grid-template-columns: 1fr 1fr; }
.calc-grid-type { grid-template-columns: 3fr 2fr; }

.calc-status { font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute); padding: var(--space-2) 0; margin-top: auto; }
.calc-status.is-error { color: #B23A1A; }
.calc-status.is-ready { color: var(--credit); }

.hp-grid-four { grid-template-columns: repeat(4, 1fr); gap: var(--space-3); align-items: start; }
@media (max-width: 640px) { .hp-grid-four { grid-template-columns: 1fr 1fr; } }

/* System photo fills the dead space beside the field stack, instead of sitting under the dropdown */
.calc-vehicle-body { display: grid; grid-template-columns: 1fr 216px; gap: var(--space-4); align-items: stretch; }
.calc-vehicle-fields { display: flex; flex-direction: column; gap: var(--space-4); min-width: 0; }
.calc-vehicle-photo { border-radius: 8px; overflow: hidden; background: var(--line); border: 1px solid var(--line); min-height: 240px; min-width: 0; }
.calc-vehicle-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
@media (max-width: 860px) {
  .calc-vehicle-body { grid-template-columns: 1fr; }
  .calc-vehicle-fields { order: 1; }
  .calc-vehicle-photo { order: 2; width: 100%; min-height: 0; aspect-ratio: 16 / 9; }
}

/* Two-panel comparison layout: each panel is half-width, so the photo column
   needs to be narrower and the fields+photo split needs to stack sooner than
   the single-panel calculator. */
.calc-vehicles:not(.calc-vehicles-single) .calc-vehicle-body { grid-template-columns: 1fr 168px; }
@media (max-width: 1180px) {
  .calc-vehicles:not(.calc-vehicles-single) .calc-vehicle-body { grid-template-columns: 1fr; }
  .calc-vehicles:not(.calc-vehicles-single) .calc-vehicle-fields { order: 1; }
  .calc-vehicles:not(.calc-vehicles-single) .calc-vehicle-photo { order: 2; width: 100%; min-height: 0; aspect-ratio: 16 / 9; }
}

/* Panel wrapper */
.hp-panel { background: var(--card); border: 1px solid var(--line); padding: var(--space-5) var(--space-5) var(--space-6); margin-bottom: var(--space-6); }
.hp-panel-head { padding-bottom: var(--space-4); border-bottom: 1px solid var(--line); margin-bottom: var(--space-5); }
.hp-panel-title { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.015em; margin-bottom: 0.4rem; }
.hp-panel-sub { font-size: 0.9375rem; color: var(--mute); max-width: 66ch; line-height: 1.5; }

.hp-field-hint { font-family: var(--font-mono); font-size: 0.6875rem; color: var(--mute); margin-top: 0.4rem; line-height: 1.4; }

/* Toggle pair (e.g. Cash / Financed, or system tier) */
.hp-toggle { display: inline-flex; border: 1px solid var(--line-strong); background: var(--paper); margin-bottom: var(--space-5); }
.hp-toggle-btn {
  font-family: var(--font-mono); font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.05em;
  color: var(--mute); background: transparent; border: none; padding: 0.65rem 1.25rem; cursor: pointer;
  transition: color var(--duration) var(--ease), background var(--duration) var(--ease);
}
.hp-toggle-btn:hover { color: var(--ink); }
.hp-toggle-btn.is-active { background: var(--ink); color: var(--paper); }

.hp-financing-detail { display: block; }
.hp-financing-detail[hidden] { display: none; }
.hp-financing-inputs { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin-bottom: var(--space-5); }
@media (max-width: 640px) { .hp-financing-inputs { grid-template-columns: 1fr; } }

.hp-financing-summary { background: var(--paper); border-left: 3px solid var(--volt); padding: var(--space-4) var(--space-5); }
.hp-fs-row { display: flex; justify-content: space-between; align-items: baseline; padding: 0.35rem 0; border-bottom: 1px dashed var(--line); }
.hp-fs-row:last-child { border-bottom: none; }
.hp-fs-label { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--mute); letter-spacing: 0.02em; }
.hp-fs-value { font-family: var(--font-mono); font-size: 1.0625rem; font-weight: 500; color: var(--ink); font-feature-settings: "tnum"; }

/* Headline result */
.hp-headline { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--volt); padding: var(--space-6); margin-bottom: var(--space-6); }
.hp-headline-label { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute); margin-bottom: var(--space-3); }
.hp-headline-total { font-family: var(--font-mono); font-size: clamp(2.5rem, 5.5vw, 3.75rem); font-weight: 500; letter-spacing: -0.025em; color: var(--ink); font-feature-settings: "tnum"; line-height: 1; margin-bottom: var(--space-2); }
.hp-headline-peryear { font-family: var(--font-mono); font-size: 1.125rem; font-weight: 500; color: var(--volt); font-feature-settings: "tnum"; margin-bottom: var(--space-3); }
.hp-headline-system { font-size: 1.0625rem; color: var(--mute); }

.hp-breakdown .hp-breakdown-credit td:last-child { color: var(--credit); }

/* Results */
.calc-results { margin-top: var(--space-6); }

.calc-summary {
  display: grid; grid-template-columns: 1fr 1px 1fr 1px 1fr; gap: var(--space-5); align-items: stretch;
  background: var(--card); border: 1px solid var(--line); padding: var(--space-6) var(--space-5); margin-bottom: var(--space-6);
}
.calc-summary-divider { background: var(--line); }
.calc-summary-col { display: flex; flex-direction: column; gap: 0.25rem; }
.calc-summary-label { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); display: flex; align-items: center; gap: 0.5rem; }
.calc-summary-total { font-family: var(--font-mono); font-size: clamp(1.75rem, 3.2vw, 2.5rem); font-weight: 500; letter-spacing: -0.02em; color: var(--ink); font-feature-settings: "tnum"; }
.calc-summary-peryear { font-family: var(--font-mono); font-size: 0.875rem; font-weight: 500; color: var(--mute); font-feature-settings: "tnum"; }
.calc-summary-vehicle { font-size: 0.875rem; color: var(--mute); }
.calc-summary-result .calc-summary-total { color: var(--credit); }
.calc-summary-result .calc-summary-peryear { color: var(--credit); opacity: 0.75; }
.calc-summary-result.is-baseline-wins .calc-summary-total { color: #B23A1A; }
.calc-summary-result.is-baseline-wins .calc-summary-peryear { color: #B23A1A; opacity: 0.75; }

.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; flex: 0 0 auto; }
.dot-heatpump { background: var(--volt); }
.dot-baseline { background: var(--ink); }

.calc-chart { background: var(--card); border: 1px solid var(--line); padding: var(--space-5); margin-bottom: var(--space-6); }
.calc-chart svg { width: 100%; height: auto; }
.calc-chart .line { transition: d 600ms var(--ease); }

.calc-ledger-wrap { background: var(--card); border: 1px solid var(--line); padding: var(--space-5); margin-bottom: var(--space-6); }
.calc-section-title { font-family: var(--font-mono); font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); margin-bottom: var(--space-4); }

.calc-ledger-table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
.calc-ledger-table th, .calc-ledger-table td { text-align: left; padding: 0.7rem 0; border-bottom: 1px dashed var(--line); }
.calc-ledger-table th.num, .calc-ledger-table td.num { text-align: right; font-family: var(--font-mono); font-feature-settings: "tnum"; font-weight: 500; }
.calc-ledger-table th { font-weight: 500; color: var(--mute); font-size: 0.8125rem; padding-bottom: var(--space-3); }
.calc-ledger-table th .dot { margin-right: 0.4rem; vertical-align: middle; }
.calc-ledger-total td { border-top: 1px solid var(--ink); border-bottom: none; padding-top: 1rem; font-weight: 600; }
.calc-ledger-peryear td { border-bottom: none; padding-top: 0.35rem; color: var(--mute); font-size: 0.875rem; }

.calc-assumptions { background: var(--card); border: 1px solid var(--line); padding: var(--space-5); }
.calc-assumption-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3) var(--space-5); margin-bottom: var(--space-4); }
.calc-assumption-list li { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px dashed var(--line); padding: 0.5rem 0; }
.assumption-label { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }
.assumption-value { color: var(--ink); font-weight: 500; }

.calc-disclaimer { font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute); line-height: 1.55; max-width: 80ch; }

@media (max-width: 900px) {
  .calc-globals { grid-template-columns: 1fr; }
  .calc-vehicles { grid-template-columns: 1fr; }
  .calc-summary { grid-template-columns: 1fr; gap: var(--space-4); }
  .calc-summary-divider { height: 1px; width: 100%; }
  .calc-assumption-list { grid-template-columns: 1fr; }
}
@media (max-width: 560px) { .calc-grid, .calc-grid-money { grid-template-columns: 1fr; } }

/* ==========================================================================
   Commercial battery storage economics
   ========================================================================== */

.skip-link {
  position: fixed; left: var(--space-4); top: var(--space-4); z-index: 100;
  transform: translateY(-150%); background: var(--ink); color: var(--paper);
  padding: var(--space-3) var(--space-4); font-weight: 600;
}
.skip-link:focus { transform: translateY(0); }
.commercial-hero .hero-lede { max-width: 75ch; }
.commercial-scope-note { margin-top: 0; margin-bottom: var(--space-6); }
.commercial-calculator-shell {
  display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.82fr);
  gap: var(--space-6); align-items: start;
}
.commercial-step {
  font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--volt); margin-bottom: var(--space-2);
}
.field-optional { color: var(--mute); font-weight: 400; letter-spacing: 0; text-transform: lowercase; }
.commercial-feasibility,
.commercial-warning {
  margin-top: var(--space-4); padding: var(--space-3) var(--space-4);
  font-family: var(--font-mono); font-size: 0.75rem; line-height: 1.55;
  background: var(--paper); border: 1px solid var(--line);
}
.commercial-feasibility.is-ok { color: #315D16; border-color: rgba(67, 122, 34, 0.45); }
.commercial-feasibility.is-warning,
.commercial-warning { color: #7A3C18; border-color: rgba(150, 66, 25, 0.45); }
.commercial-warning[hidden] { display: none; }
.tax-note {
  font-size: 0.8125rem; line-height: 1.55; color: var(--mute);
  margin-top: var(--space-4); max-width: 78ch;
}
.tax-note a { color: var(--volt); text-decoration: underline; text-underline-offset: 2px; }

.commercial-details {
  border: 1px solid var(--line); background: var(--card); margin-bottom: var(--space-6);
}
.commercial-details summary {
  display: flex; justify-content: space-between; align-items: center; gap: var(--space-4);
  padding: var(--space-5); cursor: pointer; list-style: none; min-height: 72px;
}
.commercial-details summary::-webkit-details-marker { display: none; }
.commercial-details summary > span:first-child { display: flex; flex-direction: column; gap: 0.2rem; }
.commercial-details summary strong { font-size: 1.125rem; }
.commercial-details summary small { color: var(--mute); font-size: 0.8125rem; font-weight: 400; }
.details-toggle {
  font-family: var(--font-mono); font-size: 1.5rem; line-height: 1; color: var(--volt);
  transition: transform var(--duration) var(--ease);
}
.commercial-details[open] .details-toggle { transform: rotate(45deg); }
.commercial-details-body { padding: 0 var(--space-5) var(--space-5); border-top: 1px solid var(--line); }
.commercial-details-body > .calc-row-2 { padding-top: var(--space-5); }
.commercial-finance-grid { margin-top: var(--space-5); }
.commercial-finance-grid[hidden] { display: none; }
.commercial-threshold-grid { margin-top: var(--space-5); }

.commercial-results-sticky { position: sticky; top: 92px; display: grid; gap: var(--space-4); }
.commercial-screen-card {
  background: var(--ink); color: var(--paper); padding: var(--space-5);
  border: 1px solid var(--ink); min-height: 132px; display: flex; flex-direction: column; justify-content: center;
}
.commercial-screen-card .calc-summary-label { color: rgba(245,247,246,0.66); margin-bottom: var(--space-2); }
.commercial-screen-card strong { font-size: clamp(1.35rem, 2.2vw, 1.8rem); line-height: 1.15; }
.commercial-screen-card p { margin-top: var(--space-2); color: rgba(245,247,246,0.72); font-size: 0.875rem; line-height: 1.45; }
.commercial-screen-card.is-pass { background: #173E31; border-color: #173E31; }
.commercial-screen-card.is-mixed { background: #4A4022; border-color: #4A4022; }
.commercial-screen-card.is-fail { background: #4E272C; border-color: #4E272C; }
.commercial-kpi-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.commercial-kpi { background: var(--card); padding: var(--space-4); min-height: 112px; display: flex; flex-direction: column; }
.commercial-kpi > span {
  font-family: var(--font-mono); font-size: 0.6875rem; text-transform: uppercase;
  letter-spacing: 0.07em; color: var(--mute);
}
.commercial-kpi strong {
  font-family: var(--font-mono); font-size: clamp(1.45rem, 2.5vw, 2rem);
  font-weight: 500; letter-spacing: -0.03em; margin: auto 0 0.1rem; font-variant-numeric: tabular-nums;
}
.commercial-kpi small { font-size: 0.75rem; color: var(--mute); }
.commercial-kpi .is-positive,
.commercial-metrics .is-positive { color: #315D16; }
.commercial-kpi .is-negative,
.commercial-metrics .is-negative { color: #8F2635; }
.commercial-result-card {
  background: var(--card); border: 1px solid var(--line); padding: var(--space-5);
}
.commercial-result-head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); }
.commercial-result-head h3 { font-size: 1rem; margin-top: var(--space-2); }
.commercial-result-head > strong { font-family: var(--font-mono); font-size: 0.9rem; text-align: right; color: var(--volt); }
.commercial-result-caption { color: var(--mute); font-size: 0.78rem; margin: var(--space-2) 0 var(--space-4); line-height: 1.45; }
.peak-track { height: 12px; background: var(--ink); margin: var(--space-4) 0 var(--space-2); position: relative; }
.peak-track span { display: block; height: 100%; background: var(--volt); transition: width 320ms var(--ease); }
.peak-track-labels { display: flex; justify-content: space-between; gap: var(--space-3); font-family: var(--font-mono); font-size: 0.7rem; color: var(--mute); }
.commercial-value-stack { margin-top: var(--space-3); }
.commercial-value-stack .value-stack-track { background: var(--line); }
.commercial-metrics { margin-top: var(--space-3); }
.commercial-sensitivity-card > strong {
  display: block; margin: var(--space-3) 0 var(--space-2); font-family: var(--font-mono);
  font-size: clamp(1.45rem, 2.5vw, 2rem); color: var(--volt); font-weight: 500;
}
.commercial-sensitivity-card p { color: var(--mute); font-size: 0.8125rem; line-height: 1.5; }

.commercial-analysis-section { margin-top: var(--space-8); }
.commercial-analysis-head { display: flex; align-items: end; justify-content: space-between; gap: var(--space-5); margin-bottom: var(--space-4); }
.commercial-analysis-head h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
.commercial-analysis-head > p { color: var(--mute); font-size: 0.875rem; max-width: 52ch; }
.chart-legend { display: flex; flex-wrap: wrap; gap: var(--space-4); font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute); }
.chart-legend span { display: inline-flex; align-items: center; gap: var(--space-2); }
.chart-legend i { width: 22px; height: 3px; display: inline-block; }
.legend-project { background: var(--volt); }
.legend-owner { background: var(--gold); }
.commercial-chart-card { border: 1px solid var(--line); background: var(--card); padding: var(--space-5); overflow-x: auto; }
.commercial-cashflow-chart { display: block; width: 100%; min-width: 620px; height: auto; }
.chart-grid { stroke: var(--line); stroke-width: 1; stroke-dasharray: 3 5; }
.chart-zero { stroke: var(--ink); stroke-width: 1.2; }
.chart-axis { fill: var(--mute); font: 11px var(--font-mono); }
.chart-unit { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; }
.chart-line { fill: none; stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.chart-line-project { stroke: var(--volt); }
.chart-line-owner { stroke: var(--gold); stroke-dasharray: 7 5; }
.commercial-ledger-wrap { overflow-x: auto; }
.commercial-ledger { min-width: 760px; }
.commercial-ledger tr:last-child td { border-bottom: none; }
.commercial-year-zero td { color: var(--mute); }
.commercial-finance-table { min-width: 650px; }
.commercial-finance-table tr.is-selected td { background: rgba(14, 124, 134, 0.08); color: var(--ink); }
.commercial-finance-table tr.is-selected td:first-child { box-shadow: inset 3px 0 0 var(--volt); }
.commercial-assumptions { margin-top: var(--space-8); }

@media (max-width: 1040px) {
  .commercial-calculator-shell { grid-template-columns: 1fr; }
  .commercial-results { order: -1; }
  .commercial-results-sticky { position: static; grid-template-columns: 1fr 1fr; }
  .commercial-screen-card, .commercial-kpi-grid { grid-column: 1 / -1; }
}
@media (max-width: 700px) {
  .commercial-results-sticky { grid-template-columns: 1fr; }
  .commercial-screen-card, .commercial-kpi-grid { grid-column: auto; }
  .commercial-analysis-head { align-items: flex-start; flex-direction: column; }
  .commercial-result-head { flex-direction: column; }
  .commercial-result-head > strong { text-align: left; }
  .commercial-details summary small { display: none; }
}
@media (max-width: 430px) {
  .commercial-kpi-grid { grid-template-columns: 1fr; }
  .commercial-kpi { min-height: 94px; }
  .commercial-kpi strong { margin-top: var(--space-3); }
}

.calc-field-wide { grid-column: 1 / -1; max-width: 50%; }
@media (max-width: 560px) { .calc-field-wide { max-width: 100%; } }

/* Critical-load checklist — multi-select checkbox cards (Battery Size Calculator) */
.calc-load-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); margin-bottom: var(--space-2); }
@media (max-width: 900px) { .calc-load-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .calc-load-grid { grid-template-columns: 1fr; } }

.calc-load-item {
  display: flex; align-items: flex-start; gap: 0.65rem; padding: var(--space-3);
  border: 1px solid var(--line); background: var(--paper); cursor: pointer;
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease);
}
.calc-load-item:hover { border-color: var(--line-strong); }
.calc-load-item.is-checked { border-color: var(--volt); background: var(--card); }
.calc-load-item input[type="checkbox"] { margin-top: 0.2rem; accent-color: var(--volt); flex: 0 0 auto; width: 16px; height: 16px; cursor: pointer; }
.calc-load-item-body { display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; }
.calc-load-item-label { font-size: 0.9375rem; font-weight: 500; color: var(--ink); line-height: 1.3; }
.calc-load-item-meta { font-family: var(--font-mono); font-size: 0.6875rem; color: var(--mute); line-height: 1.4; }

/* Multi-button group (e.g. 8/12/24/48/72hr backup duration) — extends .hp-toggle to N options */
.hp-toggle-multi { display: flex; flex-wrap: wrap; border: 1px solid var(--line-strong); background: var(--paper); }
.hp-toggle-multi .hp-toggle-btn { flex: 1 1 auto; text-align: center; border-right: 1px solid var(--line-strong); }
.hp-toggle-multi .hp-toggle-btn:last-child { border-right: none; }
@media (max-width: 640px) {
  .hp-toggle-multi .hp-toggle-btn { flex: 1 1 30%; border-bottom: 1px solid var(--line-strong); }
  .hp-toggle-multi .hp-toggle-btn:nth-last-child(-n+3) { border-bottom: none; }
}

/* Radio-card group (heating/cooling type pickers) */
.calc-radio-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: var(--space-2); }
.calc-radio-card {
  display: flex; align-items: center; gap: 0.5rem; padding: 0.65rem 0.75rem;
  border: 1px solid var(--line); background: var(--paper); cursor: pointer; font-size: 0.875rem;
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease);
}
.calc-radio-card:hover { border-color: var(--line-strong); }
.calc-radio-card.is-checked { border-color: var(--volt); background: var(--card); }
.calc-radio-card input[type="radio"] { accent-color: var(--volt); cursor: pointer; flex: 0 0 auto; }

/* Compact ZIP-derived context chips row */
.calc-context-strip { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-4); }
.calc-context-chip {
  display: flex; flex-direction: column; gap: 0.15rem; font-family: var(--font-mono); font-size: 0.6875rem;
  color: var(--ink); background: var(--paper); border: 1px solid var(--line); padding: 0.45rem 0.7rem; min-width: 108px;
}
.calc-context-chip .cc-label { color: var(--mute); letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.625rem; }
.calc-context-chip .cc-value { color: var(--ink); font-weight: 500; font-size: 0.8125rem; }
.calc-context-chip.is-pending .cc-value { color: var(--mute); }

/* Inline caution note (e.g. heat-pump aux-heat warning in cold climates) */
.calc-caution { font-family: var(--font-mono); font-size: 0.75rem; color: var(--ink); background: var(--paper); border-left: 3px solid var(--flame); padding: var(--space-3) var(--space-4); line-height: 1.5; margin-top: var(--space-3); }
.calc-caution.is-ok { border-left-color: var(--credit); }

/* Lightweight linked-toggle sections (Solar / TOU / VPP) */
.calc-link-toggles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: var(--space-6); }
.calc-link-toggles.is-pair { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) { .calc-link-toggles, .calc-link-toggles.is-pair { grid-template-columns: 1fr; } }
.calc-link-card { background: var(--card); padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-3); }
.calc-link-card-title { font-size: 1rem; font-weight: 600; color: var(--ink); display: flex; align-items: center; gap: 0.5rem; }
.calc-link-card-note { font-size: 0.8125rem; color: var(--mute); line-height: 1.5; flex: 1; }
.calc-link-card-cta { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); text-decoration: none; }
.calc-link-card-cta:hover { color: var(--volt); }
.calc-link-card-cta::after { content: '\2192'; margin-left: 0.35rem; }

/* Recommended battery stack results */
.calc-stack-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-bottom: var(--space-6); }
@media (max-width: 960px) { .calc-stack-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .calc-stack-grid { grid-template-columns: 1fr; } }
.calc-stack-card { background: var(--card); padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-2); position: relative; }
.calc-stack-card.is-best { border-top: 3px solid var(--volt); }
.calc-stack-card-badge { font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--volt); }
.calc-stack-card-name { font-size: 1.0625rem; font-weight: 600; color: var(--ink); }
.calc-stack-card-specs { font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute); line-height: 1.5; }
.calc-stack-card-specs strong { color: var(--ink); font-weight: 500; }
.calc-stack-card-cost-label { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--mute); margin-top: var(--space-1); }
.calc-stack-card-cost { font-size: 1.75rem; font-weight: 700; color: var(--volt); line-height: 1.1; letter-spacing: -0.01em; }
.calc-stack-empty { grid-column: 1 / -1; padding: var(--space-6) var(--space-5); background: var(--card); border: 1px dashed var(--line-strong); text-align: center; color: var(--mute); font-family: var(--font-mono); font-size: 0.8125rem; line-height: 1.6; }

/* Auto-fill hints (reused across pickers) */
.calc-hint { font-family: var(--font-mono); font-size: 0.6875rem; color: var(--mute); margin-top: 0.4rem; line-height: 1.4; }
.calc-hint.is-curated  { color: var(--credit); }
.calc-hint.is-estimate { color: var(--volt); }
.calc-hint.is-user     { color: var(--credit); }
.calc-hint.is-class    { color: var(--flame); }
.calc-hint.is-fallback { color: #B23A1A; }
.calc-hint.is-emphasis { color: var(--volt); font-weight: 600; font-size: 0.75rem; }

/* ZIP hint + utility chip */
.calc-zip-hint { font-family: var(--font-mono); font-size: 0.6875rem; color: var(--mute); margin-top: 0.4rem; line-height: 1.4; min-height: 1em; transition: color var(--duration) var(--ease); }
.calc-zip-hint.is-partial { color: var(--mute); }
.calc-zip-hint.is-ok { color: var(--credit); }
.calc-zip-hint.is-error { color: #B23A1A; }

.calc-utility-chip {
  display: inline-block; margin-top: 0.5rem; font-family: var(--font-mono); font-size: 0.7rem; line-height: 1.5;
  color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-left: 3px solid var(--volt);
  padding: 0.4rem 0.6rem; max-width: 42ch;
}
.calc-utility-chip strong { color: var(--volt); font-weight: 600; }
.calc-utility-chip.is-plan-active { border-left-color: var(--credit); }
.calc-utility-chip.is-plan-active strong { color: var(--credit); }
.calc-utility-chip-status { display: block; color: var(--mute); margin-top: 2px; font-size: 0.65rem; }

#calc-zip { font-family: var(--font-mono); letter-spacing: 0.05em; max-width: 12ch; }

/* ==========================================================================
   Incentives page (est-* estimator, inc-* results)
   ========================================================================== */

.est-section { padding: 0 0 var(--space-8); background: var(--paper); }

/* Generic content section wrapper — used by guide pages and lean calculator pages */
.calc-section { padding: var(--space-7) 0; }
.est-card { background: var(--card); border: 1px solid var(--line); padding: var(--space-6) var(--space-6) var(--space-5); max-width: 900px; }
.est-eyebrow { font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--credit); margin-bottom: var(--space-3); }
.est-heading { font-size: clamp(1.5rem, 2.6vw, 2rem); letter-spacing: -0.02em; margin-bottom: var(--space-3); }
.est-lede { color: var(--mute); font-size: 0.9375rem; max-width: 65ch; margin-bottom: var(--space-5); }

.est-inputs { display: grid; grid-template-columns: 140px 1fr auto; gap: var(--space-4); align-items: end; margin-bottom: var(--space-4); }
.est-field { display: flex; flex-direction: column; gap: 0.4rem; }
.est-field-wide { min-width: 0; }
.est-label { font-family: var(--font-sans); font-size: 0.8125rem; font-weight: 500; color: var(--ink); }

.est-input, .est-select {
  font-family: var(--font-sans); font-size: 1rem; color: var(--ink); background: var(--paper);
  border: 1px solid var(--line-strong); border-radius: 0; padding: 0.7rem 0.75rem; width: 100%;
  appearance: none; -webkit-appearance: none; transition: border-color var(--duration) var(--ease); min-height: 46px;
}
.est-input { font-family: var(--font-mono); letter-spacing: 0.05em; }
.est-select {
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%; background-size: 6px 6px;
  background-repeat: no-repeat; padding-right: 2.25rem; cursor: pointer;
}
.est-input:focus, .est-select:focus { outline: none; border-color: var(--ink); }

.est-button {
  font-family: var(--font-sans); font-size: 0.9375rem; font-weight: 500; background: var(--ink); color: #FFFFFF;
  border: none; border-radius: 0; padding: 0.75rem 1.25rem; min-height: 46px; cursor: pointer;
  transition: background var(--duration) var(--ease); white-space: nowrap;
}
.est-button:hover { background: var(--ink-soft); }
.est-button:active { background: #000; }

.est-status { font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute); margin-top: var(--space-3); }
.est-status.is-error { color: #B23A1A; }

@media (max-width: 720px) {
  .est-inputs { grid-template-columns: 1fr; gap: var(--space-3); }
  .est-button { width: 100%; }
}

.inc-results { padding: var(--space-8) 0; border-top: 1px solid var(--line); }
.inc-results-alt { background: var(--card); }
.inc-results-head { margin-bottom: var(--space-6); max-width: 60ch; }
.inc-results-eyebrow { font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--volt); margin-bottom: var(--space-3); }
.inc-results-heading { font-size: clamp(1.5rem, 3vw, 2.25rem); letter-spacing: -0.02em; margin-bottom: var(--space-3); }
.inc-results-count { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--mute); }

.inc-program-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.inc-program { background: var(--paper); padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-3); min-height: 220px; }
.inc-results-alt .inc-program { background: var(--paper); }
.inc-program-head { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-3); }

.inc-program-badge { font-family: var(--font-mono); font-size: 0.625rem; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; padding: 0.2rem 0.45rem; border: 1px solid currentColor; flex: 0 0 auto; }
.inc-program-badge.badge-federal { color: var(--credit); }
.inc-program-badge.badge-state   { color: var(--flame); }
.inc-program-badge.badge-utility { color: var(--volt); }
.inc-program-badge.badge-local   { color: var(--mute); }

.inc-program-amount { font-family: var(--font-mono); font-size: 1.25rem; font-weight: 500; color: var(--ink); font-feature-settings: "tnum"; letter-spacing: -0.01em; text-align: right; }
.inc-program-amount .amount-range { color: var(--mute); font-size: 0.8125rem; display: block; margin-top: 0.15rem; }

.inc-program-title { font-size: 1rem; font-weight: 600; line-height: 1.3; color: var(--ink); }
.inc-program-summary { font-size: 0.875rem; line-height: 1.5; color: var(--ink-soft); flex: 1; }
.inc-program-notes { font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute); line-height: 1.5; padding-top: var(--space-3); border-top: 1px dashed var(--line); }

.inc-program-link { display: inline-flex; align-items: center; gap: 0.35rem; font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); text-decoration: none; padding-top: var(--space-2); transition: color var(--duration) var(--ease); }
.inc-program-link:hover { color: var(--volt); }
.inc-program-link::after { content: '→'; transition: transform var(--duration) var(--ease); }
.inc-program-link:hover::after { transform: translateX(3px); }

.inc-status-tag { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: #B23A1A; padding-top: var(--space-2); }

.inc-empty { grid-column: 1 / -1; padding: var(--space-6) var(--space-5); background: var(--card); border: 1px dashed var(--line-strong); text-align: center; color: var(--mute); font-family: var(--font-mono); font-size: 0.875rem; line-height: 1.6; }
.inc-empty p { max-width: 80ch; margin: 0 auto; }

.inc-disclaimer { padding: var(--space-7) 0 var(--space-9); background: var(--paper); }
.inc-disclaimer p { font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute); line-height: 1.6; max-width: 80ch; }

/* ==========================================================================
   Utility Rates page (ur-*)
   ========================================================================== */

.ur-inputs { padding: 0 0 var(--space-7); background: var(--paper); }
.ur-vehicle-card { background: var(--card); border: 1px solid var(--line); padding: var(--space-5) var(--space-5) var(--space-4); margin-top: var(--space-5); }
.ur-vehicle-card .calc-header { padding-bottom: var(--space-4); border-bottom: 1px solid var(--line); margin-bottom: var(--space-4); }

.ur-results { padding: var(--space-7) 0; background: var(--card); border-top: 1px solid var(--line); }
.ur-headline-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-bottom: var(--space-6); }
@media (max-width: 720px) { .ur-headline-grid { grid-template-columns: 1fr; } }
.ur-headline-card { background: var(--paper); padding: var(--space-6) var(--space-5); min-height: 220px; display: flex; flex-direction: column; justify-content: center; }
.ur-headline-card-alt { background: var(--paper); }
.ur-headline-label { font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--volt); margin-bottom: var(--space-3); }
.ur-headline-card.is-cool .ur-headline-label { color: var(--flame); }
.ur-headline-value { font-family: var(--font-sans); font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 600; line-height: 1; letter-spacing: -0.03em; color: var(--ink); font-feature-settings: "tnum"; margin-bottom: var(--space-3); }
.ur-headline-sub { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--mute); line-height: 1.5; max-width: 42ch; }

.ur-breakdown { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-bottom: var(--space-6); }
@media (max-width: 720px) { .ur-breakdown { grid-template-columns: repeat(2, 1fr); } }
.ur-breakdown-cell { background: var(--paper); padding: var(--space-4); }
.ur-breakdown-label { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); margin-bottom: var(--space-2); }
.ur-breakdown-value { font-family: var(--font-sans); font-size: 1.25rem; font-weight: 500; color: var(--ink); font-feature-settings: "tnum"; }

.ur-assumptions { padding: var(--space-5); background: var(--paper); border: 1px solid var(--line); }
.ur-assumptions-title { font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mute); margin-bottom: var(--space-3); }
.ur-assumptions-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-3) var(--space-5); }
@media (max-width: 720px) { .ur-assumptions-grid { grid-template-columns: 1fr; } }
.ur-assumptions-grid > div { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--ink); }
.ur-assumption-label { color: var(--mute); margin-right: 0.4rem; }

.ur-utilities { padding: var(--space-8) 0; background: var(--paper); border-top: 1px solid var(--line); }
.ur-utilities-head { margin-bottom: var(--space-5); }
.ur-utilities-eyebrow { font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--flame); margin-bottom: var(--space-3); }
.ur-utilities-heading { font-size: clamp(1.25rem, 2.4vw, 1.75rem); letter-spacing: -0.02em; margin-bottom: var(--space-2); }
.ur-utilities-list { border: 1px solid var(--line); background: var(--card); margin-bottom: var(--space-4); }
.ur-util-row { display: grid; grid-template-columns: 1fr 1fr; padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--line); gap: var(--space-4); }
.ur-util-row:last-child { border-bottom: 0; }
.ur-util-name { font-weight: 500; color: var(--ink); }
.ur-util-abbr { font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute); margin-left: 0.5rem; }
.ur-util-territory { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--mute); }
.ur-utilities-empty { padding: var(--space-5); font-family: var(--font-mono); font-size: 0.875rem; color: var(--mute); text-align: center; line-height: 1.6; }
.ur-utilities-caveat { font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute); line-height: 1.6; max-width: 80ch; }

.ur-disclaimer { padding: var(--space-7) 0 var(--space-9); background: var(--card); border-top: 1px solid var(--line); }
.ur-disclaimer p { font-family: var(--font-mono); font-size: 0.75rem; color: var(--mute); line-height: 1.6; max-width: 80ch; }

@media (max-width: 720px) { .ur-util-row { grid-template-columns: 1fr; gap: var(--space-2); } }

/* ==========================================================================
   Case studies list
   ========================================================================== */

.cs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (max-width: 720px) { .cs-grid { grid-template-columns: 1fr; } }
.cs-card { background: var(--card); padding: var(--space-6) var(--space-5); display: flex; flex-direction: column; gap: var(--space-3); }
.cs-card-tags { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.cs-tag { font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute); border: 1px solid var(--line-strong); padding: 0.2rem 0.5rem; }
.cs-tag.is-heat { color: var(--volt); border-color: var(--volt); }
.cs-tag.is-cool { color: var(--flame); border-color: var(--flame); }
.cs-card-title { font-size: 1.375rem; font-weight: 600; letter-spacing: -0.015em; line-height: 1.25; }
.cs-card-result { font-family: var(--font-mono); font-size: 1.375rem; font-weight: 500; color: var(--credit); }
.cs-card-desc { font-size: 0.9375rem; color: var(--mute); line-height: 1.5; }
.cs-card-link { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); margin-top: auto; }
.cs-card:hover .cs-card-link { color: var(--volt); }

/* Individual case study article */
.cs-article { padding: var(--space-8) 0 var(--space-9); }
.cs-article-meta { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-5); }
.cs-article-body { max-width: 68ch; display: flex; flex-direction: column; gap: var(--space-4); font-size: 1.0625rem; line-height: 1.65; color: var(--ink-soft); }
.cs-article-body h2 { font-size: 1.5rem; margin-top: var(--space-4); color: var(--ink); }
.cs-pullquote { border-left: 3px solid var(--volt); padding-left: var(--space-4); font-size: 1.1875rem; font-weight: 500; color: var(--ink); }

/* Makes & Models — spec comparison table (cold-climate model comparisons, etc.) */
.cs-tag.is-live { color: var(--credit); border-color: var(--credit); }

.spec-table-hint { display: none; font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--mute); margin-bottom: var(--space-2); }
@media (max-width: 900px) { .spec-table-hint { display: block; } }

.spec-table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--card); margin: var(--space-5) 0; -webkit-overflow-scrolling: touch; }
.spec-table { width: 100%; min-width: 1220px; border-collapse: collapse; font-size: 0.8125rem; }
.spec-table th, .spec-table td { padding: 0.7rem 0.85rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.spec-table thead th { font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); font-weight: 500; background: var(--paper); white-space: nowrap; }
.spec-table tbody tr:hover { background: var(--paper); }
.spec-table tbody tr:last-child td { border-bottom: none; }
.spec-table td.num, .spec-table th.num { font-family: var(--font-mono); font-feature-settings: "tnum"; white-space: nowrap; font-weight: 500; }
.spec-model-name { font-weight: 600; color: var(--ink); white-space: nowrap; }
.spec-model-type { display: block; font-size: 0.6875rem; color: var(--mute); font-weight: 400; margin-top: 0.15rem; white-space: normal; }
.spec-badge { display: inline-block; font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.05em; text-transform: uppercase; padding: 0.2rem 0.5rem; border: 1px solid; white-space: nowrap; }
.spec-badge.is-yes { color: var(--credit); border-color: var(--credit); }
.spec-badge.is-no { color: var(--mute); border-color: var(--line-strong); }
.spec-na { color: var(--mute); font-style: italic; white-space: nowrap; }

.spec-alt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin: var(--space-5) 0; }
@media (max-width: 900px) { .spec-alt-grid { grid-template-columns: 1fr; } }
.spec-alt-card { background: var(--card); padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-3); }
.spec-alt-card h4 { font-size: 1rem; font-weight: 600; color: var(--ink); line-height: 1.3; }
.spec-alt-card dl { display: grid; grid-template-columns: auto 1fr; gap: 0.3rem var(--space-3); font-size: 0.8125rem; margin: 0; }
.spec-alt-card dt { color: var(--mute); }
.spec-alt-card dd { margin: 0; font-family: var(--font-mono); text-align: right; }
.spec-alt-card p { font-size: 0.8125rem; color: var(--mute); line-height: 1.5; margin: 0; }

.spec-footnotes { font-size: 0.8125rem; color: var(--mute); line-height: 1.6; display: flex; flex-direction: column; gap: var(--space-2); margin: var(--space-5) 0; }
.spec-footnotes li { list-style: none; }

/* Solar + Battery Calculator */
.solar-verdict { font-size: clamp(1.75rem, 4vw, 2.75rem); }
.solar-battery-calc .calc-row-2 { display: grid; gap: var(--space-5); }
.solar-battery-calc .calc-field { gap: 0.55rem; }
.solar-battery-calc .calc-row-2 + .calc-row-2 { margin-top: var(--space-5); }
.solar-battery-calc .calc-hint {
  color: var(--volt);
  margin-top: 0.15rem;
}
.stage-choice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}
.stage-choice {
  display: flex;
  min-height: 112px;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-4);
  color: var(--ink);
  text-align: left;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  cursor: pointer;
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.stage-choice:hover { border-color: var(--ink); }
.stage-choice.is-active {
  border-color: var(--volt);
  box-shadow: inset 4px 0 0 var(--volt);
  background: color-mix(in srgb, var(--volt) 6%, var(--card));
}
.stage-choice-title { font-size: 1rem; font-weight: 650; line-height: 1.35; }
.stage-choice-copy { color: var(--mute); font-size: 0.875rem; line-height: 1.5; }
.calc-summary-four { grid-template-columns: 1.15fr 1px 1fr 1px 1fr 1px 1fr; }
.solar-metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: var(--space-6);
  background: var(--line);
  border: 1px solid var(--line);
}
.solar-metric {
  display: flex;
  min-height: 112px;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--card);
}
.solar-metric strong {
  font-size: 1.25rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.solar-metric-value {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(72px, 1fr);
  align-items: center;
  gap: var(--space-3);
}
.solar-bar {
  position: relative;
  display: block;
  height: 6px;
  overflow: hidden;
  background: var(--line);
}
.solar-bar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: var(--volt);
  transition: left 420ms var(--ease), width 420ms var(--ease);
}
.solar-bar-fill.is-negative { background: #B23A1A; }
.solar-bar-bidirectional { overflow: visible; }
.solar-bar-midpoint {
  position: absolute;
  top: -3px;
  bottom: -3px;
  left: 50%;
  width: 1px;
  background: var(--line-strong);
  z-index: 1;
}
@media (max-width: 760px) {
  .solar-metric-grid { grid-template-columns: 1fr 1fr; }
  .stage-choice-grid { grid-template-columns: 1fr; }
}
@media (max-width: 1100px) {
  .calc-summary-four { grid-template-columns: 1fr; gap: var(--space-4); }
  .calc-summary-four .calc-summary-divider { width: 100%; height: 1px; }
}
@media (max-width: 480px) {
  .solar-metric-grid { grid-template-columns: 1fr; }
  .solar-metric-value { grid-template-columns: 1fr; }
}

/* Battery Economics Calculator */
.economics-calc .meth-note { margin-bottom: var(--space-6); }
.economics-calc .calc-row-2 { display: grid; gap: var(--space-5); }
.economics-calc .calc-row-2.is-single { grid-template-columns: minmax(0, 1fr); }
.economics-calc .calc-field { gap: 0.55rem; }
.economics-calc .calc-hint { color: var(--volt); margin-top: 0.15rem; }
.finance-method-field { max-width: 580px; margin-bottom: var(--space-5); }
.finance-warning {
  margin-top: var(--space-5);
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--volt);
  background: rgba(14, 124, 134, 0.07);
  color: var(--ink);
  font-size: 0.9rem;
  line-height: 1.5;
}
.finance-boundary { margin-top: var(--space-4); }
.threshold-summary .calc-summary-total { font-size: clamp(1.45rem, 2.6vw, 2.1rem); }
.threshold-summary.is-pass .calc-summary-total { color: #437A22; }
.threshold-summary.is-fail .calc-summary-total { color: #A13544; }
.threshold-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin: var(--space-5) 0;
}
.threshold-grid.is-single { grid-template-columns: 1fr; }
.threshold-card {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.35rem 0.8rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  background: var(--card);
}
.threshold-card strong { grid-column: 2; font-family: var(--font-mono); font-size: 0.85rem; }
.threshold-status {
  grid-row: 1 / span 2;
  min-width: 4.5rem;
  padding: 0.35rem 0.55rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.threshold-name { font-size: 0.82rem; color: var(--mute); }
.threshold-card.is-pass { border-color: rgba(67, 122, 34, 0.5); }
.threshold-card.is-pass .threshold-status { color: #315D16; background: rgba(67, 122, 34, 0.12); }
.threshold-card.is-fail { border-color: rgba(161, 53, 68, 0.5); }
.threshold-card.is-fail .threshold-status { color: #8F2635; background: rgba(161, 53, 68, 0.11); }
.economics-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
  margin: var(--space-5) 0;
}
.economics-result-card { border: 1px solid var(--line); background: var(--card); padding: var(--space-5); }
.economics-result-card > strong {
  display: block;
  margin: 0.45rem 0 1.25rem;
  font-family: var(--font-mono);
  font-size: 1.85rem;
}
.value-stack { display: grid; gap: 0.75rem; }
.value-stack-row {
  display: grid;
  grid-template-columns: minmax(120px, 1.25fr) minmax(90px, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
  font-size: 0.82rem;
}
.value-stack-row strong { font-family: var(--font-mono); font-size: 0.78rem; }
.value-stack-track { height: 7px; background: var(--paper-deep); overflow: hidden; }
.value-stack-track span { display: block; height: 100%; transition: width 260ms ease; }
.economics-metrics { margin: 0.8rem 0 0; }
.economics-metrics div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
}
.economics-metrics div:last-child { border-bottom: 0; }
.economics-metrics dt { color: var(--mute); font-size: 0.86rem; }
.economics-metrics dd { margin: 0; font-family: var(--font-mono); font-weight: 600; }
.economics-metrics dd.is-negative { color: #A13544; }
.finance-table-heading {
  display: flex;
  justify-content: space-between;
  gap: var(--space-5);
  align-items: flex-end;
  margin-bottom: var(--space-4);
}
.finance-table-heading p { color: var(--mute); font-size: 0.88rem; max-width: 66ch; margin-top: 0.35rem; }
.dealer-fee-callout { text-align: right; flex: 0 0 auto; }
.dealer-fee-callout span { display: block; color: var(--mute); font-size: 0.75rem; }
.dealer-fee-callout strong { font-family: var(--font-mono); font-size: 1.45rem; }
.finance-comparison-table tr.is-lower-interest td:first-child { color: var(--volt); font-weight: 600; }
.finance-comparison-table tr.is-selected-term { background: rgba(14, 124, 134, 0.06); }
@media (max-width: 900px) {
  .economics-summary { grid-template-columns: 1fr; gap: var(--space-4); }
  .economics-summary .calc-summary-divider { height: 1px; width: 100%; }
  .threshold-grid, .economics-result-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .value-stack-row { grid-template-columns: minmax(0, 1fr) auto; }
  .value-stack-track { grid-column: 1 / -1; grid-row: 2; }
  .finance-table-heading { display: block; }
  .dealer-fee-callout { text-align: left; margin-top: var(--space-4); }
}