:root {
  --calc-bg: #06110c;
  --calc-surface: #0a1812;
  --calc-surface-strong: #10231a;
  --calc-line: rgba(255, 255, 255, 0.13);
  --calc-line-strong: rgba(197, 239, 115, 0.48);
  --calc-text: #f4f7f3;
  --calc-muted: #aebbb3;
  --calc-accent: #c5ef73;
}

body.calculator-page {
  color: var(--calc-text);
  background: var(--calc-bg);
}

.calculator-page .calc-shell {
  min-height: 100dvh;
  overflow: hidden;
  padding-top: 72px;
  background:
    radial-gradient(circle at 78% 12%, rgba(197, 239, 115, 0.08), transparent 24rem),
    linear-gradient(180deg, #08150f 0%, var(--calc-bg) 42%, #07130e 100%);
}

.calculator-page .calc-hero {
  width: min(calc(100% - 44px), var(--max));
  min-height: min(610px, calc(100dvh - 72px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.58fr);
  align-items: center;
  gap: clamp(38px, 6vw, 86px);
  margin: 0 auto;
  padding: 48px 0 38px;
}

.calculator-page .calc-kicker {
  margin: 0 0 14px;
  color: var(--calc-accent);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.calculator-page .calc-hero h1 {
  max-width: 730px;
  margin: 0;
  color: var(--calc-text);
  font-size: clamp(48px, 5vw, 72px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.calculator-page .calc-hero h1 span {
  display: block;
  color: var(--calc-accent);
}

.calculator-page .calc-copy {
  max-width: 600px;
  margin: 20px 0 0;
  color: var(--calc-muted);
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.55;
}

.calculator-page .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.calculator-page .calc-visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--calc-line);
  border-radius: var(--radius);
  background: var(--calc-surface);
  box-shadow: 0 28px 78px rgba(0, 0, 0, 0.34);
}

.calculator-page .calc-visual img {
  width: 100%;
  height: min(520px, calc(100dvh - 180px));
  min-height: 390px;
  aspect-ratio: 0.82;
  object-fit: cover;
  object-position: center 38%;
  filter: saturate(0.86) contrast(1.03);
}

.calculator-page .calc-update {
  width: min(calc(100% - 44px), 1000px);
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  margin: 0 auto 24px;
  padding: 18px 20px;
  border: 1px solid var(--calc-line-strong);
  border-radius: var(--radius);
  background: rgba(197, 239, 115, 0.07);
}

.calculator-page .calc-update strong {
  color: var(--calc-accent);
  font-size: 14px;
  line-height: 1.35;
}

.calculator-page .calc-update p {
  margin: 0;
  color: var(--calc-muted);
  font-size: 13px;
  line-height: 1.5;
}

.calculator-page .calc-update a {
  color: var(--calc-text);
  font-size: 13px;
  font-weight: 850;
  text-decoration: underline;
  text-underline-offset: 4px;
  white-space: nowrap;
}

.calculator-page .calc-source-links {
  display: grid;
  gap: 8px;
}

.calculator-page .calc-card {
  width: min(calc(100% - 44px), 1000px);
  margin: 0 auto 88px;
  padding: clamp(22px, 4vw, 38px);
  scroll-margin-top: 96px;
  border: 1px solid var(--calc-line);
  border-radius: var(--radius);
  background: rgba(10, 24, 18, 0.94);
  box-shadow: 0 30px 84px rgba(0, 0, 0, 0.28);
}

.calculator-page .calc-step {
  display: none;
  scroll-margin-top: 96px;
}

.calculator-page .calc-step.is-active {
  display: block;
}

.calculator-page .calc-step:focus-visible {
  outline: 3px solid rgba(197, 239, 115, 0.82);
  outline-offset: 5px;
}

.calculator-page .calc-step-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin: 0 0 22px;
}

.calculator-page .calc-step-head h2 {
  margin: 0;
  color: var(--calc-text);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.calculator-page .calc-step-head span {
  color: var(--calc-muted);
  font-size: 12px;
  font-weight: 800;
  text-align: right;
}

.calculator-page .calc-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.calculator-page .calc-options.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.calculator-page .calc-options.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.calculator-page .calc-options.five { grid-template-columns: repeat(5, minmax(0, 1fr)); }

.calculator-page .calc-option,
.calculator-page .calc-check,
.calculator-page .calc-pill {
  border: 1px solid var(--calc-line);
  border-radius: 12px;
  color: var(--calc-text);
  background: var(--calc-surface-strong);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  transition:
    transform 180ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.calculator-page .calc-option {
  min-height: 92px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 17px;
  text-align: left;
}

.calculator-page .calc-option.center {
  justify-content: center;
  text-align: center;
}

.calculator-page .calc-option.is-selected,
.calculator-page .calc-check.is-selected,
.calculator-page .calc-pill.is-selected {
  border-color: var(--calc-accent);
  color: #09130d;
  background: var(--calc-accent);
}

@media (hover: hover) {
  .calculator-page .calc-option:hover,
  .calculator-page .calc-check:hover,
  .calculator-page .calc-pill:hover {
    border-color: var(--calc-accent);
    transform: translateY(-2px);
  }
}

.calculator-page .calc-option:active,
.calculator-page .calc-check:active,
.calculator-page .calc-pill:active,
.calculator-page .calc-next:active {
  transform: scale(0.98);
}

.calculator-page .calc-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  flex: 0 0 48px;
  border-radius: 50%;
  color: var(--calc-accent);
  background: rgba(197, 239, 115, 0.12);
}

.calculator-page .is-selected .calc-icon {
  color: #0a170f;
  background: rgba(5, 18, 11, 0.12);
}

.calculator-page .calc-icon svg {
  width: 26px;
  height: 26px;
}

.calculator-page .calc-house-icon {
  width: 76px;
  height: 54px;
  flex-basis: 76px;
  border-radius: 8px;
}

.calculator-page .calc-house-icon svg {
  width: 70px;
  height: 50px;
}

.calculator-page .calc-option small,
.calculator-page .calc-check small {
  display: block;
  margin-top: 4px;
  color: currentColor;
  font-size: 12px;
  font-weight: 650;
  line-height: 1.35;
  opacity: 0.72;
}

.calculator-page .calc-field-group {
  margin-top: 26px;
}

.calculator-page .calc-field-group.is-hidden {
  display: none;
}

.calculator-page .calc-label,
.calculator-page .calc-email-row label {
  display: block;
  margin: 0 0 8px;
  color: var(--calc-text);
  font-size: 13px;
  font-weight: 850;
}

.calculator-page .calc-help {
  max-width: 700px;
  margin: 0 0 13px;
  color: var(--calc-muted);
  font-size: 13px;
  line-height: 1.45;
}

.calculator-page .calc-pills {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.calculator-page .calc-pill {
  min-height: 46px;
  padding: 8px 10px;
}

.calculator-page .calc-range-label {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--calc-text);
  font-weight: 750;
}

.calculator-page .calc-range-label strong { color: var(--calc-accent); }

.calculator-page .calc-range {
  width: 100%;
  margin-top: 15px;
  accent-color: var(--calc-accent);
}

.calculator-page .calc-unit-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.calculator-page .calc-cost-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.calculator-page .calc-unit-entry,
.calculator-page .calc-unit-cap {
  min-height: 106px;
  padding: 15px 17px;
  border: 1px solid var(--calc-line);
  border-radius: 10px;
  background: rgba(4, 15, 10, 0.38);
}

.calculator-page .calc-unit-entry label,
.calculator-page .calc-unit-cap > span {
  display: block;
  margin-bottom: 8px;
  color: var(--calc-muted);
  font-size: 12px;
  font-weight: 760;
  line-height: 1.35;
}

.calculator-page .calc-unit-entry input {
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--calc-line-strong);
  border-radius: 8px;
  color: var(--calc-text);
  background: rgba(255, 255, 255, 0.06);
  font: inherit;
  font-size: 18px;
  font-weight: 800;
}

.calculator-page .calc-unit-entry[hidden],
.calculator-page .calc-cost-grid[hidden] {
  display: none;
}

.calculator-page .calc-unit-entry input:focus-visible {
  outline: 3px solid rgba(197, 239, 115, 0.28);
  outline-offset: 2px;
  border-color: var(--calc-accent);
}

.calculator-page .calc-unit-cap strong {
  display: block;
  color: var(--calc-accent);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1;
  letter-spacing: -0.03em;
}

.calculator-page .calc-unit-cap small {
  display: block;
  margin-top: 7px;
  color: var(--calc-muted);
  font-size: 11px;
  line-height: 1.4;
}

.calculator-page .calc-unit-help {
  grid-column: 1 / -1;
  margin: -2px 0 0;
}

.calculator-page .calc-unit-help a {
  color: var(--calc-accent);
  font-weight: 800;
  text-underline-offset: 3px;
}

.calculator-page .calc-check {
  width: 100%;
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 17px;
  text-align: left;
}

.calculator-page .calc-family-check { margin-top: 10px; }

.calculator-page .calc-context-note {
  margin-top: 18px;
  padding: 13px 15px;
  border: 1px solid var(--calc-line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.035);
}

.calculator-page .calc-checkmark {
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  margin-left: auto;
  border: 2px solid rgba(255, 255, 255, 0.38);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
}

.calculator-page .calc-check.is-selected .calc-checkmark {
  border-color: #0a170f;
  background:
    linear-gradient(135deg, transparent 47%, #0a170f 47% 57%, transparent 57%),
    linear-gradient(45deg, transparent 40%, #0a170f 40% 51%, transparent 51%),
    rgba(255, 255, 255, 0.36);
}

.calculator-page .calc-rule-note {
  margin-top: 24px;
  padding: 15px 17px;
  border-left: 3px solid var(--calc-accent);
  background: rgba(197, 239, 115, 0.07);
}

.calculator-page .calc-rule-note strong { color: var(--calc-accent); }
.calculator-page .calc-rule-note p { margin: 5px 0 0; color: var(--calc-muted); font-size: 13px; }

.calculator-page .calc-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--calc-line);
}

.calculator-page .calc-back {
  min-height: 44px;
  border: 0;
  color: var(--calc-text);
  background: transparent;
  font: inherit;
  font-weight: 850;
  cursor: pointer;
}

.calculator-page .calc-back:disabled {
  color: rgba(255, 255, 255, 0.3);
  cursor: default;
}

.calculator-page .calc-next { min-width: 124px; }

.calculator-page .calc-result-box {
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--calc-line-strong);
  border-radius: var(--radius);
  background: rgba(197, 239, 115, 0.06);
}

.calculator-page .calc-result-top {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 16px;
}

.calculator-page .calc-result-top h2 {
  margin: 0;
  color: var(--calc-text);
  font-size: 26px;
}

.calculator-page .calc-result-top p {
  margin: 6px 0 0;
  color: var(--calc-muted);
}

.calculator-page .calc-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin: 22px 0;
}

.calculator-page .calc-summary div {
  min-height: 92px;
  padding: 14px;
  border: 1px solid var(--calc-line);
  border-radius: 10px;
  background: rgba(4, 15, 10, 0.46);
}

.calculator-page .calc-summary strong {
  display: block;
  margin-bottom: 3px;
  color: var(--calc-accent);
  font-size: 20px;
  line-height: 1.15;
}

.calculator-page .calc-summary span {
  color: var(--calc-muted);
  font-size: 12px;
  line-height: 1.35;
}

.calculator-page .calc-email-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 10px;
}

.calculator-page .calc-action-row { grid-template-columns: 1fr; }
.calculator-page .calc-action-row .btn { justify-self: start; }

.calculator-page .calc-email-row label {
  grid-column: 1 / -1;
  margin-bottom: -2px;
}

.calculator-page .calc-email-row input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  color: var(--calc-text);
  background: #0b1b14;
}

.calculator-page .calc-email-row input::placeholder { color: #91a097; }
.calculator-page .calc-email-row input:focus { border-color: var(--calc-accent); }

.calculator-page .calc-note {
  margin: 12px 0 0;
  color: var(--calc-muted);
  font-size: 12px;
}

.calculator-page .calc-output {
  display: none;
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--calc-line);
  border-radius: 10px;
  background: var(--calc-surface);
}

.calculator-page .calc-output.is-visible {
  display: block;
  animation: calc-output-in 180ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes calc-output-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.calculator-page .calc-output ul { margin: 12px 0 0; padding-left: 20px; color: var(--calc-muted); }
.calculator-page .calc-output li + li { margin-top: 8px; }
.calculator-page .calc-output .btn-secondary { color: var(--calc-text); }
.calculator-page .calc-pdf-report { display: none; }

.calculator-page .site-footer {
  color: var(--calc-text);
  background: #050d09;
  border-top: 1px solid var(--calc-line);
}

@media (max-width: 900px) {
  .calculator-page .calc-hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 54px 0 34px;
  }

  .calculator-page .calc-visual img {
    height: 340px;
    min-height: 310px;
    aspect-ratio: 16 / 9;
    object-position: center 34%;
  }

  .calculator-page .calc-update {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .calculator-page .calc-update a { justify-self: start; }
  .calculator-page .calc-options.four { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .calculator-page .calc-options.five { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .calculator-page .calc-cost-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .calculator-page .calc-shell { padding-top: 64px; }
  .calculator-page .calc-hero,
  .calculator-page .calc-update,
  .calculator-page .calc-card { width: calc(100% - 24px); }
  .calculator-page .calc-hero { gap: 26px; padding-top: 38px; }
  .calculator-page .calc-hero h1 { font-size: clamp(40px, 12vw, 54px); }
  .calculator-page .calc-copy { font-size: 15px; }
  .calculator-page .calc-visual img { height: 240px; min-height: 240px; }
  .calculator-page .calc-card { margin-bottom: 54px; padding: 16px; }
  .calculator-page .calc-step-head { align-items: flex-start; flex-direction: column; gap: 5px; }
  .calculator-page .calc-step-head span { text-align: left; }
  .calculator-page .calc-options,
  .calculator-page .calc-options.two,
  .calculator-page .calc-options.four,
  .calculator-page .calc-options.five { grid-template-columns: 1fr; }
  .calculator-page .calc-option { min-height: 66px; padding: 13px; }
  .calculator-page .calc-options[data-single="building"] { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .calculator-page .calc-options[data-single="building"] .calc-option {
    min-height: 116px;
    flex-direction: column;
    gap: 7px;
    padding: 10px 6px;
    font-size: 11px;
  }
  .calculator-page .calc-pills { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .calculator-page .calc-unit-group { grid-template-columns: 1fr; }
  .calculator-page .calc-unit-help { grid-column: auto; }
  .calculator-page .calc-summary { grid-template-columns: 1fr; }
  .calculator-page .calc-summary div { min-height: 0; }
  .calculator-page .calc-email-row { grid-template-columns: 1fr; }
  .calculator-page .calc-email-row label { grid-column: auto; }
  .calculator-page .calc-email-row .btn { width: 100%; }
  .calculator-page .calc-result-top { grid-template-columns: 1fr; }
  .calculator-page .calc-nav { position: sticky; bottom: 0; z-index: 2; margin-inline: -16px; padding: 14px 16px max(14px, env(safe-area-inset-bottom)); background: rgba(10, 24, 18, 0.97); }
}

@media (prefers-reduced-motion: reduce) {
  .calculator-page .calc-option,
  .calculator-page .calc-check,
  .calculator-page .calc-pill { transition: none; }
  .calculator-page .calc-output.is-visible { animation: none; }
}

@media print {
  @page { size: A4; margin: 15mm; }
  body.calculator-page { color: #101712; background: #fff; }
  .calculator-page .site-header,
  .calculator-page .calc-hero,
  .calculator-page .calc-update,
  .calculator-page .calc-step,
  .calculator-page .calc-nav,
  .calculator-page .site-footer { display: none !important; }
  .calculator-page .calc-shell { min-height: 0; padding: 0; background: #fff; }
  .calculator-page .calc-card { width: 100%; margin: 0; padding: 0; border: 0; background: #fff; box-shadow: none; }
  .calculator-page .calc-step[data-step="5"].is-active { display: block !important; }
  .calculator-page .calc-result-box > :not(.calc-pdf-report) { display: none !important; }
  .calculator-page .calc-result-box { padding: 0; border: 0; background: #fff; }
  .calculator-page .calc-pdf-report { display: block; color: #101712; }
  .calculator-page .pdf-report-header,
  .calculator-page .pdf-highlight-grid,
  .calculator-page .pdf-report-grid { display: grid; gap: 10px; }
  .calculator-page .pdf-report-header { grid-template-columns: 1fr auto; margin-bottom: 24px; border-bottom: 2px solid #173c2a; padding-bottom: 12px; }
  .calculator-page .pdf-report-header div { display: grid; }
  .calculator-page .pdf-report-title h2 { margin: 4px 0; font-size: 28px; }
  .calculator-page .pdf-highlight-grid { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); margin: 20px 0; }
  .calculator-page .pdf-highlight-grid div { padding: 12px; border: 1px solid #ccd6ce; }
  .calculator-page .pdf-highlight-grid span,
  .calculator-page .pdf-highlight-grid strong { display: block; }
  .calculator-page .pdf-report-grid { grid-template-columns: 1fr 1fr; }
  .calculator-page .pdf-report-grid section,
  .calculator-page .pdf-benefit-box,
  .calculator-page .pdf-next-steps { break-inside: avoid; margin-top: 14px; padding: 14px; border: 1px solid #d8dfda; }
  .calculator-page .pdf-disclaimer { margin-top: 18px; font-size: 11px; color: #4d5c52; }
}