@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/Manrope-400.ttf") format("truetype");
}

@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/Manrope-500.ttf") format("truetype");
}

@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/Manrope-600.ttf") format("truetype");
}

@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/Manrope-700.ttf") format("truetype");
}

@font-face {
  font-family: "Prata";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/Prata-400.ttf") format("truetype");
}

.calculator-page {
  --calculator-bg: #070b0e;
  --calculator-surface: #10171b;
  --calculator-surface-deep: #090e11;
  --calculator-surface-soft: #131b20;
  --calculator-title: #f6f1e9;
  --calculator-text: #f6f1e9;
  --calculator-muted: #aaa8a3;
  --calculator-accent: #e0ad8f;
  --calculator-accent-soft: #f0cbb6;
  --calculator-line: rgba(215, 150, 54, 0.34);
  --calculator-line-soft: rgba(255, 255, 255, 0.09);
  background: var(--calculator-bg);
}

.calculator-page button,
.calculator-page input {
  font: inherit;
}

.calculator-page button:focus-visible,
.calculator-page a:focus-visible,
.calculator-page input:focus-visible {
  outline: 2px solid var(--calculator-accent-soft);
  outline-offset: 3px;
}

.calculator-main {
  padding-top: 7rem;
}

.calculator-shell {
  width: min(calc(100% - 4rem), 85rem);
  margin-inline: auto;
}

.calculator-page .desktop-nav-shell {
  width: min(calc(100% - 4rem), 85rem);
}

.calculator-eyebrow {
  margin-bottom: 1rem;
  color: var(--calculator-accent);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.calculator-pill-button {
  min-height: 3.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  padding: 0 1.45rem;
  border-radius: 999px;
  background: var(--calculator-accent);
  color: #22262b;
  font-size: 0.82rem;
  font-weight: 650;
  transition: transform 0.18s ease, background-color 0.18s ease;
}

.calculator-pill-button:hover {
  transform: translateY(-2px);
  background: var(--calculator-accent-soft);
}

.calculator-arrow {
  width: 0.85rem;
  height: 0.85rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
}

.calculator-arrow--down {
  transform: translateY(-0.15rem) rotate(45deg);
}

.calculator-arrow--right {
  position: relative;
  width: 1rem;
  height: 1rem;
  border: 0;
}

.calculator-arrow--right::before,
.calculator-arrow--right::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 0;
}

.calculator-arrow--right::before {
  width: 0.95rem;
  height: 1.5px;
  background: currentColor;
  transform: translateY(-50%);
}

.calculator-arrow--right::after {
  width: 0.45rem;
  height: 0.45rem;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
  transform-origin: center;
}

.calculator-mobile-progress {
  display: none;
}

.calculator-hero {
  min-height: 38.125rem;
  display: grid;
  grid-template-columns: minmax(24.375rem, 0.92fr) minmax(32.5rem, 1.32fr) 10.625rem;
  overflow: hidden;
  border-bottom: 1px solid var(--calculator-line-soft);
}

.calculator-hero__copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 4rem 2.625rem 3.75rem 1.375rem;
}

.calculator-hero h1 {
  max-width: 36.875rem;
  margin-bottom: 1.5625rem;
  color: var(--calculator-title);
  font-size: clamp(2.4375rem, 2.78vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.058em;
  line-height: 1;
}

.calculator-hero h1 span {
  color: var(--calculator-accent);
}

.calculator-hero__copy > p:not(.calculator-eyebrow) {
  max-width: 29rem;
  margin-bottom: 1.7rem;
  color: #c9bfb8;
  font-size: 0.94rem;
  line-height: 1.65;
}

.calculator-hero__media {
  position: relative;
  min-height: 38.125rem;
  overflow: hidden;
  border-radius: 2rem 2rem 0 0;
  background: var(--calculator-surface);
}

.calculator-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(32, 35, 41, 0.24), transparent 25%),
    linear-gradient(180deg, transparent 64%, rgba(32, 35, 41, 0.22));
  pointer-events: none;
}

.calculator-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.calculator-proof-list {
  margin: 0;
  display: grid;
  align-content: center;
  padding: 2.125rem 0.5rem 2.125rem 2.125rem;
}

.calculator-proof-list div {
  padding: 1.5625rem 0;
  border-bottom: 1px solid var(--calculator-line-soft);
  text-align: center;
}

.calculator-proof-list div:last-child {
  border-bottom: 0;
}

.calculator-proof-list dt {
  color: var(--calculator-title);
  font-size: 2.625rem;
  font-weight: 700;
  line-height: 1;
}

.calculator-proof-list dd {
  margin: 0.5rem 0 0;
  color: #c7bdb7;
  font-size: 0.6875rem;
  line-height: 1.35;
}

.calculator-included {
  padding-block: 6.5rem 5.625rem;
}

.calculator-section-intro,
.calculator-workspace__intro {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: end;
  gap: 4.375rem;
  margin-bottom: 3.375rem;
}

.calculator-section-intro h2,
.calculator-transition h2,
.calculator-workspace__intro h2 {
  margin-bottom: 0;
  color: var(--calculator-title);
  font-size: clamp(2.375rem, 4.1vw, 3.625rem);
  font-weight: 650;
  line-height: 1.04;
  letter-spacing: -0.047em;
}

.calculator-section-intro > p,
.calculator-workspace__intro > p {
  max-width: 36.875rem;
  margin: 0 0 0.3125rem auto;
  color: var(--calculator-muted);
  font-size: 0.875rem;
  line-height: 1.7;
}

.calculator-workspace__intro {
  grid-template-columns: 1fr 0.8fr;
  margin-bottom: 2rem;
}

.calculator-journey {
  position: relative;
  padding-left: 3.125rem;
}

.calculator-journey::before {
  content: "";
  position: absolute;
  top: 1.25rem;
  bottom: 1.25rem;
  left: 1rem;
  width: 1px;
  background: var(--calculator-line);
}

.calculator-chapter {
  position: relative;
  border-top: 1px solid var(--calculator-line-soft);
}

.calculator-chapter::before {
  content: "";
  position: absolute;
  z-index: 2;
  top: 1.8125rem;
  left: -2.5625rem;
  width: 0.875rem;
  height: 0.875rem;
  border: 1px solid var(--calculator-accent);
  border-radius: 50%;
  background: var(--calculator-bg);
  box-shadow: 0 0 0 0.375rem var(--calculator-bg);
}

.calculator-chapter.is-open::before {
  background: var(--calculator-accent);
}

.calculator-chapter__trigger {
  width: 100%;
  min-height: 4.875rem;
  display: grid;
  grid-template-columns: 4.75rem minmax(0, 1fr) 2.25rem;
  align-items: center;
  gap: 0.625rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--calculator-text);
  text-align: left;
  cursor: pointer;
}

.calculator-chapter__trigger > span {
  color: var(--calculator-accent);
  font-size: 1.875rem;
  font-weight: 500;
  letter-spacing: -0.035em;
}

.calculator-chapter__trigger strong {
  color: var(--calculator-title);
  font-size: 1.125rem;
  font-weight: 600;
}

.calculator-chapter__trigger i {
  position: relative;
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  justify-self: end;
  border: 1px solid var(--calculator-line);
  border-radius: 50%;
  color: var(--calculator-accent);
}

.calculator-chapter__trigger i::before,
.calculator-chapter__trigger i::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.8rem;
  height: 1px;
  background: var(--calculator-accent-soft);
  transform: translate(-50%, -50%);
}

.calculator-chapter__trigger i::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: opacity 0.2s ease;
}

.calculator-chapter.is-open .calculator-chapter__trigger i::after {
  opacity: 0;
}

.calculator-chapter__content {
  display: grid;
  grid-template-columns: minmax(19.375rem, 0.92fr) minmax(27.5rem, 1.08fr);
  gap: 3.5rem;
  padding: 0.3125rem 0 2.375rem 5.375rem;
}

.calculator-chapter__content[hidden] {
  display: none;
}

.calculator-chapter__content ul {
  display: grid;
  align-content: center;
  gap: 0.625rem;
  margin: 0;
  padding: 0.625rem 0;
}

.calculator-chapter__content li {
  position: relative;
  padding-left: 1.5625rem;
  color: #c8beb7;
  font-size: 0.8125rem;
  line-height: 1.45;
}

.calculator-chapter__content li::before {
  content: "";
  position: absolute;
  top: 0.42rem;
  left: 0;
  width: 0.55rem;
  height: 0.3rem;
  border-left: 1.5px solid var(--calculator-accent);
  border-bottom: 1.5px solid var(--calculator-accent);
  transform: rotate(-45deg);
}

.calculator-chapter__content img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
  justify-self: end;
  overflow: hidden;
  border: 1px solid var(--calculator-line-soft);
  border-radius: 1.375rem;
  background: var(--calculator-surface);
  cursor: default;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
}

.calculator-transition {
  min-height: 24.375rem;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.25rem;
  align-items: center;
  overflow: hidden;
  padding: 4rem 4.375rem;
  border: 1px solid var(--calculator-line);
  border-radius: 2rem;
  background: #262a31;
}

.calculator-transition__copy {
  position: relative;
  z-index: 2;
}

.calculator-transition h2 {
  max-width: 31rem;
  margin-bottom: 0;
}

.calculator-transition__copy > p:not(.calculator-eyebrow) {
  max-width: 38.125rem;
  margin: 1.4375rem 0 1.5625rem;
  color: #c9bfb8;
  font-size: 0.875rem;
  line-height: 1.65;
}

.calculator-transition__art {
  height: 18.75rem;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-left: 1px solid var(--calculator-line-soft);
}

.calculator-transition__art img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0.72;
}

.calculator-workspace {
  padding-block: 6.5rem 7.5rem;
  scroll-margin-top: 1.5rem;
}

.project-controls {
  margin-bottom: 1.375rem;
  padding: 1.125rem;
  display: grid;
  grid-template-columns: 17.375rem minmax(16.25rem, 1fr) 13.75rem;
  gap: 1.0625rem;
  border: 1px solid var(--calculator-line);
  border-radius: 1.375rem;
  background: rgba(37, 41, 47, 0.78);
}

.project-controls > label,
.preset-control {
  min-width: 0;
  display: grid;
  align-content: end;
  gap: 0.5625rem;
}

.project-controls > label > span:first-child,
.preset-control > span:first-child {
  color: var(--calculator-muted);
  font-size: 0.625rem;
  line-height: 1.2;
}

.number-field {
  height: 3.625rem;
  display: grid;
  grid-template-columns: 3.125rem minmax(3.5rem, 1fr) 2.1875rem 3.125rem;
  align-items: center;
  border: 1px solid var(--calculator-line-soft);
  border-radius: 0.875rem;
  background: var(--calculator-surface-deep);
}

.number-field button {
  width: 100%;
  height: 100%;
  color: var(--calculator-accent);
  font-size: 1.35rem;
}

.number-field input {
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--calculator-title);
  font-size: 1.5625rem;
  font-weight: 600;
  text-align: right;
  -moz-appearance: textfield;
}

.number-field input::-webkit-inner-spin-button,
.number-field input::-webkit-outer-spin-button {
  margin: 0;
  -webkit-appearance: none;
}

.number-field b {
  color: var(--calculator-title);
  font-size: 0.6875rem;
  font-weight: 600;
  text-align: center;
}

.name-control input,
.reset-button {
  width: 100%;
  height: 3.625rem;
  border: 1px solid var(--calculator-line-soft);
  border-radius: 0.875rem;
  background: var(--calculator-surface-deep);
  color: var(--calculator-title);
}

.name-control input {
  padding: 0 1.0625rem;
  outline: 0;
  font-size: 0.8rem;
}

.reset-button {
  padding: 0 1.0625rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6875rem;
  color: var(--calculator-accent);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 19.875rem;
  align-items: start;
  gap: 1.375rem;
}

.sections {
  display: grid;
  gap: 0.875rem;
}

.section-card,
.summary,
.guide {
  border: 1px solid var(--calculator-line);
  border-radius: 1.375rem;
  background: rgba(37, 41, 47, 0.76);
  overflow: hidden;
}

.section-heading {
  width: 100%;
  min-height: 6.375rem;
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr) auto 1.5rem;
  align-items: center;
  gap: 1.125rem;
  padding: 1.125rem;
  border: 0;
  background: transparent;
  color: var(--calculator-text);
  text-align: left;
  cursor: pointer;
}

.section-number {
  width: 3.25rem;
  height: 3.25rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--calculator-accent);
  border-radius: 0.8125rem;
  color: var(--calculator-accent);
  font-size: 1.3125rem;
  font-weight: 650;
}

.section-title {
  min-width: 0;
}

.section-title b {
  display: block;
  margin-bottom: 0.4375rem;
  color: var(--calculator-title);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.028em;
}

.section-title small {
  display: block;
  overflow: hidden;
  color: var(--calculator-muted);
  font-size: 0.625rem;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.section-heading > strong {
  color: var(--calculator-accent-soft);
  font-size: 1.3125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.chevron {
  width: 0.55rem;
  height: 0.55rem;
  justify-self: center;
  border-right: 1.5px solid var(--calculator-accent);
  border-bottom: 1.5px solid var(--calculator-accent);
  transform: translateY(-0.15rem) rotate(45deg);
  transition: transform 0.2s ease;
}

.section-card.is-open .chevron {
  transform: translateY(0.15rem) rotate(225deg);
}

.section-body {
  display: none;
  padding: 0;
  border-top: 1px solid var(--calculator-line-soft);
}

.section-card.is-open .section-body {
  display: block;
}

.items-head,
.item-row {
  display: grid;
  align-items: center;
  gap: 0.625rem;
}

.items-head {
  grid-template-columns: minmax(0, 1fr) 8.125rem 8.125rem;
  padding: 0.8125rem 1.125rem 0.8125rem 4.875rem;
  border-bottom: 1px solid var(--calculator-line-soft);
  color: #868681;
  font-size: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.items-head span:first-child {
  grid-column: auto;
}

.items-head span:nth-child(n + 2) {
  text-align: right;
}

.item-row {
  min-height: 3.9375rem;
  grid-template-columns: 2.75rem minmax(0, 1fr) 8.125rem 8.125rem;
  padding: 0 1.125rem;
  border-bottom: 1px solid var(--calculator-line-soft);
}

.item-row:last-child {
  border-bottom: 0;
}

.calculator-page .metal-toggle {
  -webkit-appearance: none;
  appearance: none;
  position: relative;
  width: 2.625rem;
  min-width: 2.625rem;
  height: 1.4375rem;
  padding: 0;
  overflow: visible;
  border: 1px solid #625f5e;
  border-radius: 999px;
  background: #34383e;
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.43);
  cursor: pointer;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.calculator-page .metal-toggle span {
  position: absolute;
  top: 2px;
  left: 3px;
  width: 17px;
  height: 17px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  background: #565b61;
  box-shadow: inset 1px 1px 2px rgba(255, 255, 255, 0.18), 0 2px 4px rgba(0, 0, 0, 0.45);
  transition: left 170ms ease, background-color 170ms ease, box-shadow 170ms ease;
}

.calculator-page .metal-toggle[aria-checked="true"] {
  border-color: rgba(213, 182, 164, 0.62);
  background: #6e5b51;
}

.calculator-page .metal-toggle[aria-checked="true"] span {
  left: 20px;
  background: var(--calculator-accent-soft);
  box-shadow: inset 1px 1px 2px rgba(255, 255, 255, 0.58), 0 0 11px rgba(213, 182, 164, 0.47);
}

.calculator-page .metal-toggle:disabled {
  cursor: default;
}

.item-name {
  min-width: 0;
}

.item-name b {
  color: var(--calculator-title);
  font-size: 0.75rem;
  font-weight: 550;
  line-height: 1.35;
}

.item-name small {
  display: block;
  margin-top: 0.2rem;
  color: var(--calculator-accent);
  font-size: 0.5rem;
}

.item-quantity,
.item-price {
  color: #c9bfb8;
  font-size: 0.6875rem;
  text-align: right;
  white-space: nowrap;
}

.item-price {
  font-weight: 400;
}

.item-row:not(.is-selected) .item-name b,
.item-row:not(.is-selected) .item-quantity,
.item-row:not(.is-selected) .item-price {
  color: #707174;
}

.summary-column {
  position: sticky;
  top: 1.125rem;
  display: grid;
  gap: 1.0625rem;
}

.summary,
.guide {
  padding: 1.5rem;
  background: rgba(37, 41, 47, 0.94);
}

.summary-kicker {
  margin-bottom: 1.3125rem;
  color: var(--calculator-title);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.summary-meta {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6875rem 1rem;
}

.summary-meta span,
.summary-meta strong {
  font-size: 0.6875rem;
}

.summary-meta span {
  color: var(--calculator-muted);
}

.summary-meta strong {
  max-width: 9rem;
  overflow: hidden;
  color: var(--calculator-accent);
  font-weight: 600;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.summary-house {
  width: 100%;
  height: 9.25rem;
  margin: 0.75rem 0 1rem;
  object-fit: contain;
  opacity: 0.72;
}

.total-label {
  margin-bottom: 0.4375rem;
  color: var(--calculator-muted);
  font-size: 0.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.total {
  display: block;
  margin: 0 0 0.5625rem;
  color: var(--calculator-accent-soft);
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.035em;
  white-space: nowrap;
}

.price-note {
  margin-bottom: 1.125rem;
  color: #85837f;
  font-size: 0.5625rem;
  line-height: 1.45;
}

.primary-button,
.secondary-button {
  width: 100%;
  min-height: 3.1875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6875rem;
  border-radius: 0.8125rem;
  font-size: 0.6875rem;
  font-weight: 650;
  cursor: pointer;
}

.primary-button {
  background: var(--calculator-accent);
  color: #22262b;
}

.secondary-button {
  margin-top: 0.625rem;
  border: 1px solid var(--calculator-accent);
  background: transparent;
  color: var(--calculator-title);
}

.guide ol {
  display: grid;
  gap: 0;
}

.guide li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.625rem;
  margin-top: 0.9375rem;
}

.guide li > span {
  color: var(--calculator-accent);
  font-size: 1.0625rem;
  font-weight: 600;
}

.guide li p {
  color: var(--calculator-muted);
  font-size: 0.5625rem;
  line-height: 1.45;
}

.guide li b {
  display: block;
  margin-bottom: 0.3125rem;
  color: var(--calculator-title);
  font-size: 0.625rem;
}

.mobile-total {
  display: none;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  z-index: 90;
  max-width: calc(100vw - 2rem);
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--calculator-line);
  border-radius: 999px;
  background: #2a2e34;
  color: var(--calculator-title);
  box-shadow: 0 1rem 3rem rgba(8, 10, 13, 0.4);
  font-size: 0.78rem;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 1rem);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 70rem) {
  .calculator-shell,
  .calculator-page .desktop-nav-shell {
    width: min(calc(100% - 2.5rem), 85rem);
  }

  .calculator-hero {
    grid-template-columns: minmax(20.625rem, 0.9fr) minmax(26.875rem, 1.2fr) 8.4375rem;
  }

  .calculator-hero__copy {
    padding-right: 1.875rem;
    padding-left: 0.625rem;
  }

  .calculator-hero h1 {
    font-size: 2.8125rem;
  }

  .calculator-proof-list {
    padding-left: 1.125rem;
  }

  .calculator-chapter__content {
    grid-template-columns: 0.9fr 1.1fr;
    padding-left: 4.75rem;
  }

  .calculator-grid {
    grid-template-columns: minmax(0, 1fr) 18rem;
  }

  .section-heading {
    grid-template-columns: 3.25rem minmax(0, 1fr) auto 1.25rem;
    gap: 0.8125rem;
  }

  .item-row {
    grid-template-columns: 2.75rem minmax(0, 1fr) 5.9375rem 6.5625rem;
  }

  .items-head {
    grid-template-columns: minmax(0, 1fr) 5.9375rem 6.5625rem;
  }
}

@media (max-width: 51.25rem) {
  .calculator-main {
    padding-top: 5.5rem;
  }

  .calculator-shell {
    width: min(calc(100% - 2rem), 52rem);
  }

  .calculator-hero {
    min-height: auto;
    grid-template-columns: minmax(0, 1fr);
    overflow: visible;
    padding-top: 0;
    border-bottom: 0;
  }

  .calculator-hero__copy {
    align-items: flex-start;
    padding: 1.75rem 0.9375rem 1.5625rem;
    text-align: left;
  }

  .calculator-hero h1,
  .calculator-hero__copy > p:not(.calculator-eyebrow) {
    margin-inline: 0;
  }

  .calculator-hero__media {
    min-height: 19.375rem;
    height: 19.375rem;
    border-radius: 1.5rem;
  }

  .calculator-proof-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding: 0.8125rem 0.25rem 0;
    text-align: center;
  }

  .calculator-proof-list div {
    padding: 1.0625rem 0.3125rem;
    border-right: 1px solid var(--calculator-line-soft);
    border-bottom: 0;
  }

  .calculator-proof-list div:last-child {
    border-right: 0;
  }

  .calculator-section-intro,
  .calculator-workspace__intro {
    grid-template-columns: 1fr;
    gap: 1.125rem;
    margin-bottom: 1.875rem;
  }

  .calculator-section-intro h2,
  .calculator-transition h2,
  .calculator-workspace__intro h2 {
    max-width: 19ch;
  }

  .calculator-transition {
    grid-template-columns: 1fr;
  }

  .calculator-transition__art {
    border-top: 1px solid var(--calculator-line-soft);
    border-left: 0;
  }

}

@media (max-width: 51.25rem) {
  .calculator-main {
    padding-top: 4.6rem;
  }

  .calculator-shell {
    width: calc(100% - 1.25rem);
  }

  .calculator-eyebrow {
    margin-bottom: 0.75rem;
    font-size: 0.62rem;
  }

  .calculator-hero__copy {
    padding: 1.75rem 0.9375rem 1.5625rem;
  }

  .calculator-mobile-progress {
    position: relative;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0;
    padding: 0.125rem 0.8125rem 0.875rem;
  }

  .calculator-mobile-progress::before {
    content: "";
    position: absolute;
    top: 0.4375rem;
    right: 1.75rem;
    left: 1.75rem;
    height: 1px;
    background: var(--calculator-line);
  }

  .calculator-mobile-progress a {
    position: relative;
    z-index: 2;
    display: grid;
    place-items: center;
    gap: 0.375rem;
    color: var(--calculator-muted);
    font-size: 0.4375rem;
    text-decoration: none;
  }

  .calculator-mobile-progress a span {
    width: 0.625rem;
    height: 0.625rem;
    border: 1px solid var(--calculator-line);
    border-radius: 50%;
    background: var(--calculator-bg);
  }

  .calculator-mobile-progress a.is-current span {
    border-color: var(--calculator-accent);
    background: var(--calculator-accent);
  }

  .calculator-mobile-progress a small {
    font-size: 0.4375rem;
  }

  .calculator-hero h1 {
    max-width: 21rem;
    margin-bottom: 1.125rem;
    font-size: clamp(1.9375rem, 8.7vw, 2.1875rem);
    line-height: 1.02;
  }

  .calculator-hero__copy > p:not(.calculator-eyebrow) {
    max-width: 29.375rem;
    margin-bottom: 1.3125rem;
    font-size: 0.75rem;
  }

  .calculator-pill-button {
    min-height: 3rem;
    padding-inline: 1.15rem;
    font-size: 0.76rem;
  }

  .calculator-hero__media {
    min-height: 19.375rem;
    height: 19.375rem;
  }

  .calculator-hero__media img {
    object-position: 63% center;
  }

  .calculator-proof-list dt {
    font-size: 1.75rem;
  }

  .calculator-proof-list dd {
    font-size: 0.5rem;
  }

  .calculator-included {
    padding-block: 4.375rem 3.4375rem;
  }

  .calculator-section-intro h2,
  .calculator-transition h2,
  .calculator-workspace__intro h2 {
    font-size: 2.1875rem;
  }

  .calculator-section-intro > p,
  .calculator-workspace__intro > p,
  .calculator-transition__copy > p:not(.calculator-eyebrow) {
    margin: 0;
    font-size: 0.75rem;
  }

  .calculator-journey {
    padding-left: 0;
  }

  .calculator-journey::before,
  .calculator-chapter::before {
    display: none;
  }

  .calculator-chapter__trigger {
    min-height: 4.3125rem;
    grid-template-columns: 3rem minmax(0, 1fr) 1.9375rem;
    gap: 0.625rem;
  }

  .calculator-chapter__trigger > span {
    font-size: 1.4375rem;
  }

  .calculator-chapter__trigger strong {
    font-size: 0.92rem;
  }

  .calculator-chapter__trigger i {
    width: 2rem;
    height: 2rem;
  }

  .calculator-chapter__content {
    grid-template-columns: 1fr;
    gap: 1.1875rem;
    padding: 0.25rem 0 1.8125rem;
  }

  .calculator-chapter__content li {
    font-size: 0.76rem;
  }

  .calculator-chapter__content img {
    height: 12.5rem;
    border-radius: 1.125rem;
  }

  .calculator-transition {
    min-height: 0;
    gap: 1.75rem;
    padding: 2.125rem 1.5rem 1.625rem;
    border-radius: 1.5rem;
  }

  .calculator-transition__copy > p:not(.calculator-eyebrow) {
    margin-top: 1.125rem;
    font-size: 0.75rem;
  }

  .calculator-transition__art {
    height: 10.9375rem;
  }

  .calculator-workspace {
    padding-block: 4.25rem 4.5rem;
  }

  .project-controls {
    grid-template-columns: 1fr;
    gap: 0.8125rem;
    padding: 0.875rem;
  }

  .preset-control {
    grid-column: auto;
  }

  .calculator-grid {
    grid-template-columns: 1fr;
  }

  .section-heading {
    min-height: 5.5rem;
    grid-template-columns: 2.875rem minmax(0, 1fr) auto;
    gap: 0.6875rem;
    padding: 0.875rem;
  }

  .section-number {
    width: 2.75rem;
    height: 2.75rem;
    font-size: 1.0625rem;
  }

  .section-title b {
    margin-bottom: 0.3125rem;
    font-size: 1.0625rem;
  }

  .section-title small {
    max-width: 13.125rem;
    font-size: 0.5rem;
  }

  .section-heading > strong {
    font-size: 0.8125rem;
  }

  .chevron {
    display: none;
  }

  .section-body {
    padding: 0;
  }

  .items-head {
    display: none;
  }

  .item-row {
    min-height: 4.6875rem;
    grid-template-columns: 2.875rem minmax(0, 1fr) auto;
    grid-template-rows: auto auto;
    column-gap: 0.6875rem;
    padding: 0.625rem 0.875rem;
  }

  .calculator-page .metal-toggle {
    grid-row: 1 / span 2;
  }

  .item-name {
    grid-column: 2 / span 2;
  }

  .item-name b {
    font-size: 0.6875rem;
  }

  .item-quantity {
    grid-column: 2;
    grid-row: 2;
    color: var(--calculator-muted);
    font-size: 0.5625rem;
    text-align: left;
  }

  .item-price {
    grid-column: 3;
    grid-row: 2;
    color: var(--calculator-accent);
    font-size: 0.5625rem;
  }

  .summary-column {
    position: static;
  }

  .summary,
  .guide {
    display: none;
  }

  .mobile-total {
    position: fixed;
    right: 0.625rem;
    bottom: calc(0.5625rem + env(safe-area-inset-bottom, 0px));
    left: 0.625rem;
    z-index: 70;
    min-height: 4.3125rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.625rem;
    padding: 0.5625rem 0.5625rem 0.5625rem 1rem;
    border: 1px solid var(--calculator-line);
    border-radius: 1.125rem;
    background: rgba(37, 41, 47, 0.97);
    box-shadow: 0 1.125rem 2.875rem rgba(9, 11, 14, 0.5);
  }

  .mobile-total div {
    min-width: 0;
    display: grid;
    gap: 0.18rem;
  }

  .mobile-total small {
    margin-bottom: 0.25rem;
    color: var(--calculator-muted);
    font-size: 0.4375rem;
  }

  .mobile-total strong {
    overflow: hidden;
    color: var(--calculator-accent-soft);
    font-size: 1rem;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .mobile-total button {
    min-height: 3rem;
    padding-inline: 0.8125rem;
    border-radius: 0.75rem;
    background: var(--calculator-accent);
    color: #22262b;
    font-size: 0.5625rem;
    font-weight: 700;
  }

  .calculator-page .site-footer {
    padding-bottom: 6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .calculator-page *,
  .calculator-page *::before,
  .calculator-page *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

/* Experimental calculator integration, 2026-07-29. */
.calculator-page {
  --calculator-bg: #070b0e;
  --calculator-bg-soft: #0d1317;
  --calculator-surface: #10171b;
  --calculator-surface-deep: #090e11;
  --calculator-surface-soft: #131b20;
  --calculator-title: #f6f1e9;
  --calculator-text: #f6f1e9;
  --calculator-muted: #aaa8a3;
  --calculator-gold: #d79636;
  --calculator-gold-soft: #b77c2a;
  --calculator-accent: #e0ad8f;
  --calculator-accent-soft: #f0cbb6;
  --calculator-line: rgba(215, 150, 54, 0.34);
  --calculator-line-soft: rgba(255, 255, 255, 0.09);
  background: var(--calculator-bg);
  color: var(--calculator-text);
  font-family: "Manrope", "Montserrat", sans-serif;
}

.calculator-main {
  padding-top: 0;
}

.calculator-shell,
.calculator-page .desktop-nav-shell {
  width: min(82.5rem, calc(100% - 3rem));
}

.calculator-eyebrow {
  margin: 0 0 1rem;
  color: #d4cec5;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.calculator-hero {
  position: relative;
  min-height: 34rem;
  display: flex;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
  padding-top: 5.5rem;
  background: url("../images/calculator/hero-house.jpg") center 52% / cover no-repeat;
}

.calculator-hero::after {
  content: "";
  position: absolute;
  z-index: -2;
  inset: 0;
  background: linear-gradient(90deg, #05090c 0%, rgba(5, 9, 12, 0.92) 30%, rgba(5, 9, 12, 0.25) 66%, rgba(5, 9, 12, 0.55));
}

.calculator-hero__shade {
  position: absolute;
  z-index: -1;
  inset: auto 0 0;
  height: 26%;
  background: linear-gradient(180deg, transparent, rgba(7, 11, 14, 0.78));
  pointer-events: none;
}

.calculator-hero__content {
  padding: 4rem 0 4.75rem;
}

.calculator-hero h1 {
  max-width: 48rem;
  margin: 0 0 1.25rem;
  color: var(--calculator-title);
  font-family: "Prata", Georgia, serif;
  font-size: clamp(3.25rem, 6.1vw, 5.2rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.04;
  text-transform: uppercase;
}

.calculator-hero h1 span {
  color: #fff;
}

.calculator-hero__content > p:not(.calculator-eyebrow) {
  max-width: 32rem;
  color: #d3d0ca;
  font-size: 1rem;
  line-height: 1.65;
}

.calculator-included {
  padding-block: 6.75rem 5.75rem;
}

.calculator-section-intro {
  grid-template-columns: minmax(0, 0.98fr) minmax(22rem, 1.02fr);
  align-items: end;
  gap: 5rem;
  margin-bottom: 4rem;
}

.calculator-section-intro h2 {
  max-width: 10ch;
  color: var(--calculator-title);
  font-size: clamp(3.5rem, 6.4vw, 6rem);
  font-weight: 650;
  letter-spacing: -0.065em;
  line-height: 1.02;
}

.calculator-section-intro > p {
  max-width: 40rem;
  margin: 0 0 0.3rem auto;
  color: var(--calculator-muted);
  font-size: 1rem;
  line-height: 1.75;
}

.calculator-journey {
  padding-left: 3.25rem;
}

.calculator-journey::before {
  top: 2rem;
  bottom: 2rem;
  left: 1.05rem;
  background: rgba(224, 173, 143, 0.34);
}

.calculator-chapter {
  border-top: 1px solid var(--calculator-line-soft);
}

.calculator-chapter:last-child {
  border-bottom: 1px solid var(--calculator-line-soft);
}

.calculator-chapter::before {
  top: 2rem;
  left: -2.72rem;
  width: 1rem;
  height: 1rem;
  border-color: var(--calculator-accent);
  background: var(--calculator-bg);
  box-shadow: 0 0 0 0.45rem var(--calculator-bg);
}

.calculator-chapter.is-open::before {
  background: var(--calculator-accent);
}

.calculator-chapter__trigger {
  min-height: 7.75rem;
  grid-template-columns: 6rem minmax(0, 1fr) 3.5rem;
  gap: 1rem;
}

.calculator-chapter__trigger > span {
  color: var(--calculator-accent);
  font-size: 2.2rem;
  font-weight: 500;
}

.calculator-chapter__trigger strong {
  color: var(--calculator-title);
  font-size: 1.35rem;
  font-weight: 600;
}

.calculator-chapter__trigger i {
  width: 3.1rem;
  height: 3.1rem;
  border-color: rgba(224, 173, 143, 0.28);
  color: var(--calculator-accent);
}

.calculator-chapter__trigger i::before,
.calculator-chapter__trigger i::after {
  width: 1.1rem;
  background: var(--calculator-accent);
}

.calculator-chapter__content {
  grid-template-columns: minmax(19rem, 0.88fr) minmax(27rem, 1.12fr);
  gap: 3.5rem;
  padding: 0.25rem 0 2.75rem 7rem;
}

.calculator-chapter__content li {
  color: #c8c2bc;
  font-size: 0.88rem;
}

.calculator-chapter__content img {
  height: auto;
  aspect-ratio: 3 / 2;
  border-color: var(--calculator-line-soft);
  background: var(--calculator-surface);
}

.calculator-workspace {
  padding-block: 1.5rem 1.75rem;
  scroll-margin-top: 1rem;
}

.project-controls,
.section-card,
.summary,
.guide {
  border: 1px solid var(--calculator-line);
  background: linear-gradient(145deg, rgba(18, 26, 31, 0.97), rgba(8, 13, 16, 0.97));
  box-shadow: 0 1.375rem 4.375rem rgba(0, 0, 0, 0.38);
}

.project-controls {
  grid-template-columns: 15rem minmax(0, 1fr) 13.75rem;
  gap: 1.125rem;
  margin-bottom: 1.375rem;
  padding: 1.125rem;
  border-radius: 0.75rem;
}

.project-controls > label > span:first-child,
.preset-control > span:first-child {
  color: var(--calculator-muted);
  font-size: 0.75rem;
}

.number-field,
.name-control input {
  height: 3.375rem;
  border-color: var(--calculator-line-soft);
  border-radius: 0.5rem;
  background: var(--calculator-surface-deep);
}

.number-field {
  grid-template-columns: 2.5rem minmax(3.5rem, 1fr) 2.2rem 2.5rem;
}

.number-field button {
  color: var(--calculator-gold);
}

.number-field input {
  color: #fff;
  font-size: 1.5rem;
  text-align: center;
}

.number-field b {
  color: #d5d0c9;
  font-size: 0.8rem;
}

.name-control input {
  padding: 0 1rem;
  color: #fff;
  font-size: 1rem;
}

.reset-button {
  height: 3.375rem;
  border-color: var(--calculator-line);
  border-radius: 0.5rem;
  background: transparent;
  color: var(--calculator-gold);
  font-size: 0.68rem;
}

.calculator-grid {
  grid-template-columns: minmax(0, 1fr) 19.375rem;
  gap: 1.375rem;
}

.sections {
  gap: 1rem;
}

.section-card,
.summary,
.guide {
  border-radius: 0.75rem;
}

.section-heading {
  min-height: 5.125rem;
  grid-template-columns: 3rem minmax(0, 1fr) auto 1.875rem;
  gap: 1rem;
  padding: 0.875rem 1.125rem;
}

.section-number {
  width: 2.75rem;
  height: 2.75rem;
  border-color: var(--calculator-gold);
  border-radius: 0.5rem;
  color: var(--calculator-gold);
  font-family: "Montserrat", sans-serif;
  font-size: 1.3rem;
  font-weight: 650;
}

.section-title b {
  margin-bottom: 0.18rem;
  font-family: "Prata", Georgia, serif;
  font-size: 1.55rem;
  font-weight: 400;
}

.section-title small {
  color: var(--calculator-muted);
  font-size: 0.68rem;
}

.section-heading > strong {
  color: var(--calculator-gold);
  font-family: "Montserrat", sans-serif;
  font-size: 1.25rem;
  font-weight: 650;
}

.chevron {
  border-color: var(--calculator-gold);
}

.section-body {
  border-top-color: var(--calculator-line-soft);
}

.items-head {
  grid-template-columns: minmax(0, 1fr) 6.875rem 7.8125rem;
  padding: 0.75rem 1.125rem 0.75rem 4.625rem;
  color: #858989;
  font-size: 0.56rem;
}

.item-row {
  min-height: 3.5625rem;
  grid-template-columns: 2.625rem minmax(0, 1fr) 6.875rem 7.8125rem;
  padding: 0.5rem 1.125rem;
  border-bottom-color: var(--calculator-line-soft);
}

.item-row:hover {
  background: rgba(215, 150, 54, 0.035);
}

.calculator-page .metal-toggle {
  width: 2.625rem;
  min-width: 2.625rem;
  height: 1.4375rem;
  border-color: #50565a;
  background: linear-gradient(180deg, #30373b, #0b0e10);
  box-shadow: inset 0 0 0 1px #50565a, inset 0 4px 7px rgba(0, 0, 0, 0.75);
}

.calculator-page .metal-toggle span {
  top: 2px;
  left: 2px;
  width: 19px;
  height: 19px;
  border: 0;
  background: linear-gradient(145deg, #9aa0a2, #24282a 58%, #0a0c0d);
  box-shadow: 0 2px 5px #000;
}

.calculator-page .metal-toggle[aria-checked="true"] {
  border-color: transparent;
  background: linear-gradient(90deg, #7f531a, #e8b44f);
}

.calculator-page .metal-toggle[aria-checked="true"] span {
  left: 21px;
  background: radial-gradient(circle at 30% 25%, #ffe8a7, #d8972d 45%, #7c4b10);
  box-shadow: 0 2px 5px #000;
}

.item-name b {
  color: #e6e1da;
  font-size: 0.8rem;
  font-weight: 500;
}

.item-name small {
  color: var(--calculator-gold);
  font-size: 0.56rem;
}

.item-quantity,
.item-price {
  color: #bdb8b1;
  font-size: 0.75rem;
}

.calculator-chapter__trigger > span,
.section-number,
.section-heading > strong,
.number-field input,
.summary-meta strong,
.total,
.item-quantity,
.item-price,
.mobile-total strong {
  font-family: "Montserrat", sans-serif;
  font-variant-numeric: tabular-nums;
}

.summary-column {
  top: 1.125rem;
  gap: 1rem;
}

.summary,
.guide {
  padding: 1.375rem;
}

.summary-kicker {
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
}

.summary-meta span,
.summary-meta strong {
  font-size: 0.75rem;
}

.summary-meta strong {
  color: var(--calculator-gold);
}

.summary-house {
  width: 82%;
  height: auto;
  margin: 1rem 9% 0.75rem;
  opacity: 1;
}

.summary-house path {
  fill: none;
  stroke: var(--calculator-gold);
  stroke-width: 2;
}

.total {
  color: var(--calculator-gold);
  font-family: "Montserrat", sans-serif;
  font-size: 2.125rem;
  font-weight: 700;
}

.primary-button,
.secondary-button {
  min-height: 3.375rem;
  border-radius: 0.45rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.primary-button {
  border: 0;
  background: linear-gradient(135deg, #f2bd5c, #aa6919 60%, #edb85a);
  color: #17120c;
  box-shadow: 0 0.625rem 1.5rem rgba(196, 126, 31, 0.17);
}

.primary-button.is-loading,
#mobile-pdf.is-loading {
  cursor: wait;
  opacity: 0.72;
}

.secondary-button {
  border-color: var(--calculator-gold);
}

.guide li > span {
  color: var(--calculator-gold);
}

.calculator-trust {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0 auto 5.625rem;
  border: 1px solid var(--calculator-line);
  border-radius: 0.625rem;
  background: var(--calculator-surface-deep);
}

.calculator-trust article {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1.125rem 1.375rem;
  border-right: 1px solid var(--calculator-line-soft);
}

.calculator-trust article:last-child {
  border-right: 0;
}

.calculator-trust article > span {
  color: var(--calculator-gold);
  font-size: 1.625rem;
}

.calculator-trust article div {
  min-width: 0;
  display: grid;
}

.calculator-trust b {
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.calculator-trust small {
  color: #898c8d;
  font-size: 0.625rem;
}

.toast {
  border-color: var(--calculator-line);
  background: #11181c;
}

@media (max-width: 56.25rem) {
  .calculator-shell,
  .calculator-page .desktop-nav-shell {
    width: calc(100% - 2rem);
  }

  .calculator-hero {
    min-height: 31rem;
    background-position: 64% center;
  }

  .calculator-hero__content {
    padding-block: 8.5rem 4.5rem;
  }

  .calculator-hero h1 {
    max-width: 36rem;
    font-size: clamp(2.8rem, 8vw, 4.4rem);
  }

  .calculator-section-intro {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .calculator-section-intro > p {
    margin-left: 0;
  }

  .calculator-grid {
    grid-template-columns: 1fr;
  }

  .summary-column {
    position: static;
  }

  .calculator-trust {
    grid-template-columns: 1fr 1fr;
  }

  .calculator-trust article:nth-child(2) {
    border-right: 0;
  }

  .calculator-trust article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--calculator-line-soft);
  }
}

@media (max-width: 51.25rem) {
  .calculator-main {
    padding-top: 0;
  }

  .calculator-hero {
    min-height: 29rem;
    padding-top: 0;
    background-position: 66% center;
  }

  .calculator-hero::after {
    background: linear-gradient(90deg, #05090c 0%, rgba(5, 9, 12, 0.9) 58%, rgba(5, 9, 12, 0.34));
  }

  .calculator-hero__content {
    padding: 7.25rem 0 3.25rem;
  }

  .calculator-hero h1 {
    max-width: 21rem;
    font-size: clamp(2.25rem, 11.2vw, 3.15rem);
  }

  .calculator-hero__content > p:not(.calculator-eyebrow) {
    max-width: 20rem;
    font-size: 0.78rem;
  }

  .calculator-included {
    padding-block: 4.5rem 3.75rem;
  }

  .calculator-section-intro {
    margin-bottom: 2.75rem;
  }

  .calculator-section-intro h2 {
    max-width: 10ch;
    font-size: clamp(2.55rem, 12.5vw, 3.7rem);
  }

  .calculator-section-intro > p {
    font-size: 0.8rem;
  }

  .calculator-journey {
    padding-left: 0;
  }

  .calculator-journey::before,
  .calculator-chapter::before {
    display: none;
  }

  .calculator-chapter__trigger {
    min-height: 5.25rem;
    grid-template-columns: 3.25rem minmax(0, 1fr) 2.5rem;
  }

  .calculator-chapter__trigger > span {
    font-size: 1.55rem;
  }

  .calculator-chapter__trigger strong {
    font-size: 0.95rem;
  }

  .calculator-chapter__trigger i {
    width: 2.4rem;
    height: 2.4rem;
  }

  .calculator-chapter__content {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 0 0 1.75rem;
  }

  .calculator-chapter__content img {
    height: auto;
    aspect-ratio: 3 / 2;
  }

  .calculator-workspace {
    padding-block: 0.75rem 1.25rem;
  }

  .project-controls {
    grid-template-columns: 1fr;
    gap: 0.875rem;
    padding: 0.875rem;
  }

  .calculator-grid {
    gap: 1rem;
  }

  .section-heading {
    min-height: 5.5rem;
    grid-template-columns: 2.875rem minmax(0, 1fr) auto;
    padding: 0.875rem;
  }

  .section-number {
    width: 2.75rem;
    height: 2.75rem;
    font-size: 1.1rem;
  }

  .section-title b {
    font-size: 1.15rem;
  }

  .section-title small {
    max-width: 12rem;
    font-size: 0.54rem;
  }

  .section-heading > strong {
    font-size: 0.88rem;
  }

  .items-head {
    display: none;
  }

  .item-row {
    min-height: 4.625rem;
    grid-template-columns: 2.75rem minmax(0, 1fr) auto;
    grid-template-rows: auto auto;
    gap: 0.35rem 0.75rem;
    padding: 0.625rem 0.875rem;
  }

  .calculator-page .metal-toggle {
    grid-row: 1 / span 2;
  }

  .item-name {
    grid-column: 2 / span 2;
  }

  .item-name b {
    font-size: 0.72rem;
  }

  .item-quantity {
    grid-column: 2;
    grid-row: 2;
    font-size: 0.62rem;
    text-align: left;
  }

  .item-price {
    grid-column: 3;
    grid-row: 2;
    color: var(--calculator-gold);
    font-size: 0.62rem;
  }

  .summary,
  .guide {
    display: none;
  }

  .mobile-total {
    border-color: var(--calculator-line);
    background: rgba(8, 13, 16, 0.96);
  }

  .mobile-total strong {
    color: var(--calculator-gold);
  }

  .mobile-total button {
    border-radius: 0.5rem;
    background: linear-gradient(135deg, #eab458, #a9681c);
    color: #15110c;
  }

  .calculator-trust {
    grid-template-columns: 1fr;
    margin-bottom: 2rem;
  }

  .calculator-trust article {
    border-right: 0;
    border-bottom: 1px solid var(--calculator-line-soft);
  }

  .calculator-trust article:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 26.875rem) {
  .calculator-hero {
    min-height: 27.5rem;
  }

  .calculator-hero h1 {
    font-size: clamp(2rem, 10.7vw, 2.75rem);
  }

  .section-title small {
    display: none;
  }

  .section-heading {
    grid-template-columns: 2.75rem minmax(0, 1fr) auto;
    gap: 0.55rem;
    padding-inline: 0.75rem;
  }

  .section-heading > strong {
    font-size: 0.76rem;
  }
}

/* Graphite refinement and terrace controls, 2026-07-29. */
.calculator-page {
  --calculator-bg: #101419;
  --calculator-bg-soft: #131820;
  --calculator-surface: #161c23;
  --calculator-surface-deep: #0f141a;
  --calculator-surface-soft: #1a2028;
  --calculator-title: #f5eee8;
  --calculator-text: #f0e9e3;
  --calculator-muted: #b9b4af;
  --calculator-line: rgba(224, 173, 143, 0.32);
  --calculator-line-soft: rgba(238, 223, 211, 0.11);
  background: var(--calculator-bg);
  font-family: "Montserrat", sans-serif;
}

.calculator-page button,
.calculator-page input,
.calculator-page output {
  font-family: "Montserrat", sans-serif;
}

.calculator-main {
  background: var(--calculator-bg);
  overflow: clip;
}

.calculator-hero {
  margin: 0;
  border-bottom: 0;
  background:
    linear-gradient(
      180deg,
      rgba(16, 20, 25, 0.12) 0%,
      rgba(16, 20, 25, 0.22) 52%,
      rgba(16, 20, 25, 0.74) 78%,
      rgba(16, 20, 25, 0.96) 92%,
      #101419 100%
    ),
    linear-gradient(
      90deg,
      rgba(12, 16, 20, 0.98) 0%,
      rgba(12, 16, 20, 0.9) 31%,
      rgba(12, 16, 20, 0.38) 67%,
      rgba(12, 16, 20, 0.68) 100%
    ),
    url("../images/calculator/hero-house.jpg") center 52% / cover no-repeat;
}

.calculator-hero h1 {
  letter-spacing: -0.012em;
}

.calculator-hero::after {
  content: none;
  display: none;
}

.calculator-hero__shade {
  display: none;
}

.calculator-included {
  position: relative;
  z-index: 1;
  margin-top: 0;
  padding-block: 4.75rem 4.5rem;
  background: transparent;
  box-shadow: none;
}

.calculator-section-intro {
  display: block;
  margin-bottom: 3.25rem;
}

.calculator-section-intro h2 {
  max-width: 24ch;
  font-size: clamp(2rem, 3.15vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.calculator-section-intro > p {
  max-width: 55rem;
  margin: 1.35rem 0 0;
  color: var(--calculator-muted);
  font-size: 1rem;
  line-height: 1.7;
  text-align: left;
}

.calculator-chapter__trigger strong,
.calculator-chapter__content li,
.section-title b,
.section-title small,
.item-name b,
.item-name small,
.summary,
.guide {
  font-family: "Montserrat", sans-serif;
}

.calculator-chapter__trigger strong {
  font-size: 1.25rem;
}

.calculator-chapter__content li {
  font-size: 0.95rem;
  line-height: 1.65;
}

.project-controls,
.section-card,
.summary,
.guide {
  background: linear-gradient(145deg, rgba(24, 30, 38, 0.98), rgba(17, 22, 28, 0.99));
  box-shadow: 0 1.25rem 3.5rem rgba(2, 4, 7, 0.3);
}

.project-controls {
  grid-template-columns: 12rem 12rem minmax(14rem, 18rem) minmax(10.5rem, 1fr);
  align-items: end;
}

.project-controls > label > span:first-child,
.preset-control > span:first-child {
  min-height: 1.35rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
}

.project-controls > label > span:first-child small {
  color: var(--calculator-accent);
  font-size: 0.62rem;
  font-weight: 500;
  white-space: nowrap;
}

.number-field,
.name-control input,
.reset-button {
  height: 3.15rem;
}

.number-field input {
  font-size: 1.3rem;
}

.name-control input {
  font-size: 0.95rem;
}

.reset-button {
  font-size: 0.72rem;
}

.section-heading {
  min-height: 5.65rem;
}

.section-title b {
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-title small {
  max-width: 38rem;
  margin-top: 0.58rem;
  overflow: visible;
  font-size: 0.9rem;
  line-height: 1.55;
  letter-spacing: 0;
  text-overflow: clip;
  white-space: normal;
}

.section-heading > strong {
  font-size: 1.18rem;
}

.items-head {
  font-size: 0.65rem;
}

.item-row {
  min-height: 4.1rem;
}

.item-name b {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.38;
}

.item-name small {
  font-size: 0.63rem;
}

.item-quantity,
.item-price {
  font-size: 0.84rem;
}

.summary-kicker {
  font-size: 0.86rem;
}

.summary-meta span,
.summary-meta strong,
.guide li p {
  font-size: 0.82rem;
}

.price-note {
  font-size: 0.75rem;
  line-height: 1.5;
}

@media (min-width: 56.251rem) {
  .summary-column {
    top: 7rem;
    z-index: 1;
  }

  .summary,
  .guide {
    padding: 1.55rem;
  }

  .summary-kicker {
    margin-bottom: 1.35rem;
    font-size: 0.92rem;
    line-height: 1.35;
  }

  .summary-meta {
    gap: 0.75rem 1rem;
  }

  .summary-meta span,
  .summary-meta strong {
    font-size: 0.9rem;
    line-height: 1.42;
  }

  .total-label {
    margin-bottom: 0.55rem;
    font-size: 0.72rem;
    line-height: 1.4;
  }

  .total {
    max-width: 100%;
    margin-bottom: 0.8rem;
    font-size: clamp(2.15rem, 2.55vw, 2.75rem);
    line-height: 1.05;
    white-space: normal;
  }

  .price-note {
    margin-bottom: 1.25rem;
    font-size: 0.88rem;
    line-height: 1.55;
  }

  .guide li {
    grid-template-columns: 2.35rem minmax(0, 1fr);
    gap: 0.8rem;
    margin-top: 1.1rem;
  }

  .guide li > span {
    font-size: 1.2rem;
    line-height: 1.25;
  }

  .guide li p {
    font-size: 0.9rem;
    line-height: 1.55;
  }

  .guide li b {
    margin-bottom: 0.35rem;
    font-size: 0.9rem;
    line-height: 1.4;
  }
}

.toast {
  background: #1a2028;
}

@media (max-width: 75rem) and (min-width: 51.3125rem) {
  .project-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 51.25rem) {
  .calculator-hero {
    background:
      linear-gradient(
        180deg,
        rgba(16, 20, 25, 0.12) 0%,
        rgba(16, 20, 25, 0.26) 50%,
        rgba(16, 20, 25, 0.82) 78%,
        rgba(16, 20, 25, 0.97) 92%,
        #101419 100%
      ),
      linear-gradient(
        90deg,
        rgba(12, 16, 20, 0.98) 0%,
        rgba(12, 16, 20, 0.92) 58%,
        rgba(12, 16, 20, 0.46) 100%
      ),
      url("../images/calculator/hero-house.jpg") 66% center / cover no-repeat;
  }

  .calculator-included {
    padding-block: 3.75rem 3.25rem;
  }

  .calculator-section-intro {
    margin-bottom: 2.5rem;
  }

  .calculator-section-intro h2 {
    max-width: 15ch;
    font-size: clamp(1.9rem, 8.3vw, 2.55rem);
  }

  .calculator-section-intro > p {
    margin-top: 1rem;
    font-size: 0.9rem;
    line-height: 1.65;
  }

  .project-controls {
    grid-template-columns: 1fr;
  }

  .project-controls > label > span:first-child,
  .preset-control > span:first-child {
    font-size: 0.82rem;
  }

  .number-field input,
  .name-control input {
    font-size: 1rem;
  }

  .section-title b {
    font-size: 1.05rem;
  }

  .section-title small {
    display: block;
    max-width: 15rem;
    margin-top: 0.45rem;
    overflow: visible;
    font-size: 0.82rem;
    line-height: 1.52;
    text-overflow: clip;
    white-space: normal;
  }

  .section-heading > strong {
    font-size: 0.86rem;
  }

  .item-name b {
    font-size: 0.82rem;
  }

  .item-quantity,
  .item-price {
    font-size: 0.72rem;
  }

  .mobile-total {
    background: rgba(20, 25, 32, 0.97);
  }
}

/* Exact switch geometry from the approved calculator prototype. */
.calculator-page .item-row button.metal-toggle {
  -webkit-appearance: none;
  appearance: none;
  position: relative;
  display: block;
  flex: 0 0 42px;
  width: 42px;
  min-width: 42px;
  max-width: 42px;
  height: 23px;
  min-height: 23px;
  max-height: 23px;
  margin: 0;
  padding: 0;
  overflow: visible;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(180deg, #30373b, #0b0e10);
  box-shadow: inset 0 0 0 1px #50565a, inset 0 4px 7px rgba(0, 0, 0, 0.75);
  line-height: 0;
  cursor: pointer;
}

.calculator-page .item-row button.metal-toggle i {
  position: absolute;
  top: 2px;
  left: 2px;
  display: block;
  width: 19px;
  height: 19px;
  margin: 0;
  border: 0;
  border-radius: 50%;
  background: linear-gradient(145deg, #9aa0a2, #24282a 58%, #0a0c0d);
  box-shadow: 0 2px 5px #000;
  transform: translateX(0);
  transition: transform 220ms ease, background 220ms ease;
  pointer-events: none;
}

.calculator-page .item-row button.metal-toggle[aria-checked="true"] {
  background: linear-gradient(90deg, #7f531a, #e8b44f);
}

.calculator-page .item-row button.metal-toggle[aria-checked="true"] i {
  background: radial-gradient(circle at 30% 25%, #ffe8a7, #d8972d 45%, #7c4b10);
  transform: translateX(19px);
}

.calculator-page .item-row button.metal-toggle:disabled {
  cursor: default;
  opacity: 0.78;
}

.calculator-page .item-row button.metal-toggle:disabled::after {
  content: "";
  position: absolute;
  inset: 6px 15px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-top: 0;
  transform: rotate(-45deg);
}

.calculator-page .items-head {
  grid-template-columns: minmax(0, 1fr) 6.875rem;
}

.calculator-page .item-row {
  grid-template-columns: 42px minmax(0, 1fr) 6.875rem;
}

@media (max-width: 51.25rem) {
  .calculator-page .item-row {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .calculator-page .item-name {
    grid-column: 2;
  }

  .calculator-page .item-quantity {
    grid-column: 2;
  }
}

/* Final calculator controls and the fixed service scope. */
.calculator-page .project-controls {
  grid-template-columns: 12rem 12rem minmax(13rem, 1fr);
}

.calculator-page .section-expand:focus-visible {
  outline: 2px solid var(--calculator-accent-soft);
  outline-offset: -3px;
}

.calculator-page .section-title__line {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.calculator-page .section-title__line > b {
  margin-bottom: 0;
}

.calculator-page .section-title small {
  margin-top: 0.58rem;
}

.calculator-page .section-enable-toggle {
  -webkit-appearance: none;
  appearance: none;
  position: relative;
  flex: 0 0 34px;
  width: 34px;
  height: 19px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(180deg, #30373b, #0b0e10);
  box-shadow: inset 0 0 0 1px #50565a, inset 0 3px 6px rgba(0, 0, 0, 0.72);
  cursor: pointer;
}

.calculator-page .section-enable-toggle i {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: linear-gradient(145deg, #9aa0a2, #24282a 58%, #0a0c0d);
  box-shadow: 0 2px 4px #000;
  transition: transform 180ms ease, background 180ms ease;
  pointer-events: none;
}

.calculator-page .section-enable-toggle[aria-checked="true"] {
  background: linear-gradient(90deg, #7f531a, #e8b44f);
}

.calculator-page .section-enable-toggle[aria-checked="true"] i {
  background: radial-gradient(circle at 30% 25%, #ffe8a7, #d8972d 45%, #7c4b10);
  transform: translateX(15px);
}

.calculator-page .section-enable-toggle:focus-visible {
  outline: 2px solid var(--calculator-accent-soft);
  outline-offset: 3px;
}

.calculator-page .section-card.is-disabled .section-title small,
.calculator-page .section-card.is-disabled .section-heading > strong {
  color: #777a7e;
}

.calculator-page .section-card.is-disabled .item-row {
  opacity: 0.56;
}

.calculator-page .section-card.is-disabled .metal-toggle {
  cursor: not-allowed;
}

.calculator-page .section-card--included .chevron {
  grid-column: 4;
}

.calculator-page .included-services {
  padding: 1.2rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.calculator-page .section-card.is-open .included-services {
  display: grid;
}

.calculator-page .included-services__group {
  padding: 1rem;
  border: 1px solid var(--calculator-line-soft);
  border-radius: 1rem;
  background: rgba(8, 12, 16, 0.24);
}

.calculator-page .included-services__group h3 {
  margin: 0 0 0.8rem;
  color: var(--calculator-accent-soft);
  font-family: "Montserrat", sans-serif;
  font-size: 0.86rem;
  font-weight: 650;
  line-height: 1.35;
}

.calculator-page .included-services__group ul {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.62rem;
  list-style: none;
}

.calculator-page .included-services__group li {
  display: grid;
  grid-template-columns: 1.35rem minmax(0, 1fr);
  align-items: start;
  gap: 0.5rem;
}

.calculator-page .included-services__group li > span {
  width: 1.2rem;
  height: 1.2rem;
  display: grid;
  place-items: center;
  border: 1px solid rgba(211, 155, 114, 0.58);
  border-radius: 50%;
  color: var(--calculator-accent-soft);
  font-size: 0.7rem;
  line-height: 1;
}

.calculator-page .included-services__group p {
  margin: 0;
  color: var(--calculator-text);
  font-family: "Montserrat", sans-serif;
  font-size: 0.78rem;
  line-height: 1.52;
}

@media (max-width: 75rem) and (min-width: 51.3125rem) {
  .calculator-page .project-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .calculator-page .preset-control {
    grid-column: 1 / -1;
  }
}

@media (max-width: 51.25rem) {
  .calculator-page .project-controls,
  .calculator-page .included-services {
    grid-template-columns: 1fr;
  }

  .calculator-page .section-title__line {
    align-items: flex-start;
    gap: 0.55rem;
  }

  .calculator-page .section-enable-toggle {
    margin-top: 0.08rem;
  }

  .calculator-page .included-services {
    padding: 0.85rem;
  }

  .calculator-page .included-services__group {
    padding: 0.9rem;
  }

  .calculator-page .included-services__group p {
    font-size: 0.75rem;
  }
}

/* Final calculator hierarchy: compact controls, single-line section headers and fixed services. */
.calculator-page .project-controls {
  grid-template-columns: 12rem 12rem max-content;
  justify-content: start;
}

.calculator-page .preset-control {
  width: max-content;
}

.calculator-page .reset-button {
  width: auto;
  min-width: 10.25rem;
  padding-inline: 1rem;
  gap: 0.5rem;
  white-space: nowrap;
}

.calculator-page .reset-button svg {
  width: 1em;
  height: 1em;
  flex: 0 0 1em;
}

.calculator-page .section-title small {
  display: none;
}

.calculator-page .section-heading {
  min-height: 5.15rem;
}

.calculator-page .section-card--included .section-heading {
  grid-template-columns: 3.5rem minmax(0, 1fr) 1.5rem;
}

.calculator-page .section-card--included .chevron {
  grid-column: 3;
}

.calculator-page .included-services {
  padding: 0;
  grid-template-columns: none;
  gap: 0;
}

.calculator-page .section-card.is-open .included-services {
  display: block;
}

.calculator-page .items-head--included {
  grid-template-columns: minmax(0, 1fr);
}

.calculator-page .included-service-row {
  grid-template-columns: 42px minmax(0, 1fr);
}

.calculator-page .included-service-check {
  width: 1.45rem;
  height: 1.45rem;
  display: grid;
  place-items: center;
  justify-self: center;
  border: 1px solid rgba(105, 191, 128, 0.52);
  border-radius: 50%;
  background: rgba(65, 140, 86, 0.13);
  color: #77c68d;
  font-size: 0.76rem;
  font-weight: 800;
  line-height: 1;
}

@media (max-width: 75rem) and (min-width: 51.3125rem) {
  .calculator-page .project-controls {
    grid-template-columns: 12rem 12rem max-content;
  }

  .calculator-page .preset-control {
    grid-column: auto;
  }
}

@media (max-width: 51.25rem) {
  .calculator-page .project-controls {
    grid-template-columns: 1fr;
  }

  .calculator-page .preset-control,
  .calculator-page .reset-button {
    width: 100%;
  }

  .calculator-page .section-heading {
    min-height: 4.65rem;
  }

  .calculator-page .included-service-row {
    grid-template-columns: 42px minmax(0, 1fr);
  }
}