/* ==========================================================================
   NRGPAL — Battery savings calculator (page /battery-savings-calculator/)
   Loaded on that page only (inc/calculator-lead.php). Styles the markup that
   assets/js/battery-calculator.js draws into #nrg-calc and #nrg-calc-lead.
   Brand rules kept: radius 0 throughout, Sora display / Inter body, orange for
   the primary action only, green for rebate/eco, the green-rule motif.
   Tokens come from nrgpal-brand.css; fallbacks keep it readable without it.
   ========================================================================== */

.nrg-calc,
.nrg-calc-form {
  --c-ink: var(--nrg-ink, #101613);
  --c-ink-2: var(--nrg-ink-2, #5B6B78);
  --c-muted: var(--nrg-ink-muted, #8A938E);
  --c-page: var(--nrg-surface-page, #F1F3F1);
  --c-card: var(--nrg-surface-card, #FFFFFF);
  --c-subtle: var(--nrg-surface-subtle, #EAF3DE);
  --c-border: var(--nrg-border, #E5E9EA);
  --c-line: var(--nrg-btn-secondary-border, #C7CDC9);
  --c-green: var(--nrg-green, #009341);
  --c-lime: var(--nrg-lime, #8CC63C);
  --c-orange: var(--nrg-orange, #F7921A);
  --c-orange-h: var(--nrg-orange-hover, #D97C0C);
  --c-gold: var(--nrg-gold, #F3BD36);
  --c-rebate: var(--nrg-rebate-text, #3A6B1E);
  --c-dark: var(--nrg-dark-3, #0A1712);
  --c-dark-rule: var(--nrg-dark-rule, #26332C);
  --c-dark-text: var(--nrg-dark-text, #8A97A0);
  --c-dark-body: #C9D4CE;
  --c-display: var(--nrg-font-display, 'Sora', 'Helvetica Neue', Arial, sans-serif);
  --c-body: var(--nrg-font-body, 'Inter', 'Helvetica Neue', Arial, sans-serif);
  font-family: var(--c-body);
  color: var(--c-ink);
}

.nrg-calc *,
.nrg-calc-form * { box-sizing: border-box; }

/* --- Layout: questions left, live panel right --------------------------- */

.nrg-calc__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  border: 1px solid var(--c-border);
  background: var(--c-card);
}

.nrg-calc__steps {
  padding: 36px 34px 38px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.nrg-calc p { margin: 0; padding: 0; }

.nrg-calc__q {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-family: var(--c-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.35;
  letter-spacing: -0.2px;
  color: var(--c-ink);
}

.nrg-calc__num {
  font-weight: 800;
  font-size: 14px;
  color: var(--c-green);
  font-variant-numeric: tabular-nums;
}

.nrg-calc__help {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--c-ink-2);
  margin: 4px 0 14px !important;
  max-width: 56ch;
}

.nrg-calc__help--small { font-size: 13px; margin: 10px 0 0 !important; }

.nrg-calc__chips { display: flex; flex-wrap: wrap; gap: 10px; }

.nrg-calc__chip {
  font-family: var(--c-display);
  font-weight: 600;
  font-size: 14.5px;
  line-height: 1.2;
  color: var(--c-ink);
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: 0;
  padding: 13px 18px;
  cursor: pointer;
  transition: border-color .18s ease, background-color .18s ease, color .18s ease;
}

.nrg-calc__chip:hover { border-color: var(--c-ink); }

.nrg-calc__chip.is-selected {
  background: var(--c-ink);
  border-color: var(--c-ink);
  color: #FFFFFF;
}

.nrg-calc__chip:focus-visible,
.nrg-calc__btn:focus-visible,
.nrg-calc input:focus-visible,
.nrg-calc summary:focus-visible,
.nrg-calc-form input:focus-visible,
.nrg-calc-form a:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: 2px;
}

.nrg-calc__more { margin-top: 14px; }

.nrg-calc__more summary {
  display: inline-block;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-ink);
  border-bottom: 2px solid var(--c-green);
  padding-bottom: 2px;
  list-style: none;
}

.nrg-calc__more summary::-webkit-details-marker { display: none; }
.nrg-calc__more summary::after { content: " +"; color: var(--c-green); }
.nrg-calc__more[open] summary::after { content: " –"; }

.nrg-calc__inputs {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  margin-top: 14px;
}

.nrg-calc__inputs label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
}

.nrg-calc__unit {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  color: var(--c-ink-2);
}

.nrg-calc__inputs input {
  width: 110px;
  font: 500 15px var(--c-body);
  color: var(--c-ink);
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: 0;
  padding: 10px 11px;
}

.nrg-calc__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  align-items: center;
}

.nrg-calc__small { font-size: 13px; color: var(--c-muted); }

/* Primary action: square orange, as the site's buttons. */
.nrg-calc__btn,
.nrg-calc-form .nrg-calc__btn {
  display: inline-block;
  font-family: var(--c-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.3px;
  line-height: 1.2;
  color: #FFFFFF;
  background: var(--c-orange);
  border: 0;
  border-radius: 0;
  padding: 16px 26px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color .18s ease;
}

.nrg-calc__btn:hover,
.nrg-calc-form .nrg-calc__btn:hover { background: var(--c-orange-h); color: #FFFFFF; }
.nrg-calc__btn[disabled] { opacity: .7; cursor: default; }

.nrg-calc__btn--ghost {
  color: var(--c-ink);
  background: transparent;
  border: 1px solid var(--c-line);
}

.nrg-calc__btn--ghost:hover { background: transparent; color: var(--c-ink); border-color: var(--c-ink); }

/* --- The live panel ------------------------------------------------------ */

.nrg-calc__panel {
  background: var(--c-dark);
  color: #FFFFFF;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.nrg-calc__kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--c-lime);
}

.nrg-calc__cap {
  font-family: var(--c-display);
  font-weight: 800;
  font-size: clamp(34px, 3.4vw, 48px);
  line-height: 1;
  letter-spacing: -1px;
  color: #FFFFFF;
  font-variant-numeric: tabular-nums;
}

.nrg-calc__cap small {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--c-dark-text);
}

.nrg-calc__stack {
  display: flex;
  flex-direction: column-reverse;
  gap: 5px;
  width: 150px;
}

.nrg-calc__cell {
  display: block;
  height: 26px;
  background: #0F231B;
  border: 1px solid var(--c-dark-rule);
  position: relative;
  transition: border-color .25s ease;
}

.nrg-calc__cell.is-on { border-color: var(--c-lime); }

.nrg-calc__cell.is-on::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: var(--c-lime);
}

.nrg-calc__rule {
  display: block;
  width: 120px;
  height: 3px;
  background: var(--c-green);
}

.nrg-calc__note { font-size: 14px; line-height: 1.6; color: var(--c-dark-body); }

.nrg-calc__meta {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.1px;
  line-height: 1.6;
  text-transform: uppercase;
  color: var(--c-dark-text);
}

/* --- Results ------------------------------------------------------------- */

.nrg-calc__results { margin-top: 44px; }

.nrg-calc__flag {
  display: inline-block;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--c-rebate);
  background: var(--c-subtle);
  border-left: 3px solid var(--c-green);
  padding: 10px 14px;
}

.nrg-calc__flag strong { color: var(--c-ink); }

.nrg-calc__boxes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.nrg-calc__box {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  padding: 28px 26px 30px;
}

.nrg-calc__tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.3px;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: 10px !important;
}

.nrg-calc__fig {
  font-family: var(--c-display);
  font-weight: 800;
  font-size: clamp(26px, 2.3vw, 34px);
  line-height: 1.12;
  letter-spacing: -0.6px;
  color: var(--c-ink);
  font-variant-numeric: tabular-nums;
}

.nrg-calc__fig span { font-size: 15px; font-weight: 700; color: var(--c-ink-2); letter-spacing: 0; }

.nrg-calc__boxnote { font-size: 14px; line-height: 1.6; color: var(--c-ink-2); margin-top: 10px !important; }

.nrg-calc__after {
  display: grid;
  gap: 16px;
  margin-top: 22px;
  justify-items: start;
}

.nrg-calc__match { font-size: 14.5px; line-height: 1.8; color: var(--c-ink-2); }
.nrg-calc__match strong { color: var(--c-ink); font-family: var(--c-display); font-weight: 700; font-size: 14px; }
.nrg-calc__match a { color: var(--c-ink); text-decoration: underline; text-decoration-color: var(--c-line); text-underline-offset: 3px; }
.nrg-calc__match a:hover { text-decoration-color: var(--c-ink); }

.nrg-calc__match a.nrg-calc__link {
  font-family: var(--c-display);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  border-bottom: 2px solid var(--c-green);
  padding-bottom: 2px;
}

.nrg-calc__disclaimer {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-ink-2);
  max-width: 78ch;
  border-top: 1px solid var(--c-border);
  padding-top: 16px !important;
}

/* --- Capture form: a white card on the dark band ------------------------- */

.nrg-calc-form {
  background: var(--c-card);
  color: var(--c-ink);
  padding: 32px 30px 30px;
}

.nrg-calc-form p { margin: 0; padding: 0; }

.nrg-calc-form__summary {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--c-rebate);
  background: var(--c-subtle);
  border-left: 3px solid var(--c-green);
  padding: 11px 14px !important;
  margin-bottom: 8px !important;
}

.nrg-calc-form__summary strong { color: var(--c-ink); }
.nrg-calc-form__summary span { color: var(--c-ink-2); }

.nrg-calc-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.nrg-calc-form__field { margin-top: 14px; }

.nrg-calc-form__field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
  margin-bottom: 6px;
}

.nrg-calc-form__field label span { font-weight: 400; color: var(--c-muted); }

.nrg-calc-form__field input {
  width: 100%;
  font: 400 15px var(--c-body);
  color: var(--c-ink);
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: 0;
  padding: 12px;
}

.nrg-calc-form input[aria-invalid="true"] { border-color: #B42318; }

.nrg-calc-form__consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--c-ink-2);
  cursor: pointer;
}

.nrg-calc-form__consent input { margin-top: 3px; flex: 0 0 auto; accent-color: var(--c-green); }

.nrg-calc-form__hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.nrg-calc-form .nrg-calc__btn { margin-top: 20px; }

.nrg-calc-form__status { font-size: 14px; line-height: 1.6; margin-top: 14px !important; }
.nrg-calc-form__status:empty { display: none; }
.nrg-calc-form__status.is-error { color: #B42318; }
.nrg-calc-form__status a { color: inherit; text-decoration: underline; }

.nrg-calc-form__fine { font-size: 12.5px; line-height: 1.6; color: var(--c-muted); margin-top: 14px !important; }
.nrg-calc-form__fine a { color: var(--c-ink-2); text-decoration: underline; }

.nrg-calc-form--done { outline: none; }

.nrg-calc-form__done-title {
  font-family: var(--c-display);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: -0.3px;
  color: var(--c-ink);
  margin-bottom: 10px !important;
}

.nrg-calc-form--done p { font-size: 15px; line-height: 1.7; color: var(--c-ink-2); }

/* --- Responsive ---------------------------------------------------------- */

@media (max-width: 980px) {
  .nrg-calc__grid { grid-template-columns: 1fr; }
  .nrg-calc__boxes { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .nrg-calc__steps { padding: 26px 20px 28px; gap: 26px; }
  .nrg-calc__panel { padding: 28px 20px; }
  .nrg-calc__chip { flex: 1 1 auto; }
  .nrg-calc-form { padding: 24px 18px; }
  .nrg-calc-form__row { grid-template-columns: 1fr; gap: 0; }
  .nrg-calc__btn { width: 100%; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .nrg-calc__chip,
  .nrg-calc__cell,
  .nrg-calc__btn { transition: none; }
}