/* Approved Engineering Workbench; the existing brand owns type, canvas and actions. */
.calculator-page { background: var(--canvas); }
.calculator-page ::selection { background: #c1e5d7; color: var(--ink); }
.calculator-shell { padding-block: 24px 72px; }
.calculator-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 44px; font-size: .8125rem; color: #52615f; }
.calculator-breadcrumb a { color: inherit; text-decoration: none; }
.calculator-breadcrumb a:hover { text-decoration: underline; text-underline-offset: 4px; }
.calculator-intro { display: flex; justify-content: space-between; align-items: end; gap: 32px; margin-bottom: 42px; }
.calculator-intro h1 { margin: 0; font-size: clamp(2rem,3.4vw,3.3rem); line-height: 1.12; font-weight: 600; letter-spacing: -.035em; }
.calculator-intro > div > p { margin: 16px 0 0; font-size: 1.125rem; line-height: 1.6; color: #52615f; }
.calculator-intro .calculator-pricing-intro { flex: 0 0 21ch; margin: 0 0 2px; color: #52615f; font-size: .8125rem; line-height: 1.7; }
.calculator-layout { display: grid; grid-template-columns: minmax(0,300px) minmax(0,1fr); column-gap: clamp(32px,5vw,72px); align-items: start; }
.calculator-controls { padding-top: 10px; min-width: 0; }
.calculator-controls fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.calculator-controls legend,.calculator-field > label { display: block; margin-bottom: 12px; padding: 0; color: var(--ink); font-size: 1rem; line-height: 1.5; font-weight: 600; }
.calculator-segments { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 8px; }
.calculator-segments label { position: relative; min-width: 0; cursor: pointer; }
.calculator-segments input,.calculator-swatches input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.calculator-segments span { display: grid; place-items: center; min-height: 48px; padding: 10px; border: 1px solid var(--rule); border-radius: 4px; font-size: .9375rem; background: #fff; transition: background-color .15s,border-color .15s,color .15s; }
.calculator-segments input:checked + span { background: var(--green); color: #fff; border-color: var(--green); }
.calculator-segments input:focus-visible + span { outline: 2px solid var(--ink); outline-offset: 3px; }
.calculator-field { margin-top: 28px; }
.calculator-input-wrap { display: flex; min-height: 52px; border: 1px solid var(--rule); border-radius: 4px; overflow: hidden; background: #fff; }
.calculator-input-wrap:focus-within { border-color: var(--green); outline: 2px solid var(--green); outline-offset: 2px; }
.calculator-input-wrap input { min-width: 0; width: 100%; padding: 12px 16px; background: transparent; border: 0; border-radius: 0; color: var(--ink); font: inherit; font-size: 1.125rem; font-variant-numeric: tabular-nums; caret-color: var(--green); }
.calculator-input-wrap input:focus-visible { outline: 0; }
.calculator-input-wrap span { display: grid; place-items: center; padding-inline: 18px; border-left: 1px solid var(--rule); background: #ecefed; color: #52615f; }
.calculator-field:has([aria-invalid="true"]) .calculator-input-wrap { border-color: #a02d2d; }
.calculator-help { margin: 10px 0 0; font-size: .8125rem; color: #52615f; line-height: 1.65; }
.calculator-error { margin: 10px 0 0; color: #9b2727; font-size: .8125rem; line-height: 1.6; }
.calculator-shape-note { margin-top: 18px; }
.calculator-colours { margin-top: 30px; }
.calculator-swatches { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 12px; }
.calculator-swatches label { position: relative; display: flex; flex-direction: column; align-items: center; gap: 10px; min-height: 86px; padding: 3px; cursor: pointer; font-size: .8125rem; color: var(--ink); }
.calculator-swatch-chip { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid #bdc7c1; border-radius: 50%; background: var(--roof-swatch); }
.calculator-swatches input:checked + .calculator-swatch-chip { outline: 2px solid var(--green); outline-offset: 3px; }
.calculator-swatches input:focus-visible + .calculator-swatch-chip { outline: 3px solid var(--ink); outline-offset: 5px; }
.calculator-swatch-chip svg { width: 22px; height: 22px; opacity: 0; color: white; }
.calculator-swatches input:checked + .calculator-swatch-chip svg { opacity: 1; }
.calculator-swatches label:first-child .calculator-swatch-chip svg { color: var(--green-hover); }
.calculator-colour-pricing { margin-top: 8px; }
.calculator-model { min-width: 0; }
.calculator-model-stage { position: relative; min-height: 430px; height: clamp(430px,35vw,530px); overflow: hidden; isolation: isolate; }
.calculator-model-fallback { width: 100%; height: 100%; min-height: 430px; display: block; color: #52615f; font-family: var(--font-sans); }
.calculator-model-fallback text { fill: currentColor; font-size: 19px; }
.calculator-model-fallback text:last-child { font-size: 14px; }
.calculator-model-stage.has-roof-model .calculator-model-fallback { display: none; }
.calculator-model-caption { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-top: 12px; color: #52615f; font-size: .8125rem; line-height: 1.6; }
.calculator-model-caption > [data-model-help] { flex: 1 1 auto; }
.calculator-model-tools { display: flex; flex: 0 0 auto; gap: 4px; }
.calculator-zoom-level { align-self: center; min-width: 36px; margin-right: 4px; text-align: right; color: #52615f; font-size: .75rem; font-variant-numeric: tabular-nums; }
.calculator-model-tools button { display: grid; place-items: center; width: 44px; min-width: 44px; height: 44px; padding: 10px; border: 1px solid var(--rule); border-radius: 4px; background: var(--surface); color: var(--ink); cursor: pointer; transition: color .15s,border-color .15s,background-color .15s; }
.calculator-model-tools button:hover:not(:disabled) { border-color: var(--green); color: var(--green-hover); background: #edf5f1; }
.calculator-model-tools button:disabled { color: #8a9590; background: #ecefed; cursor: not-allowed; }
.calculator-model-tools svg { display: block; width: 22px; height: 22px; }
.calculator-model-error { margin: 16px 0 0; font-size: .8125rem; color: #52615f; line-height: 1.7; }
.calculator-summary { display: grid; grid-template-columns: 1.05fr 1fr 1fr 1.05fr; gap: 24px; align-items: start; grid-column: 1/-1; margin-top: 40px; padding-top: 28px; border-top: 1px solid #aab5af; }
.calculator-summary h2 { font-size: 1rem; font-weight: 600; line-height: 1.6; margin: 6px 0 0; letter-spacing: -.02em; }
.calculator-quantity strong,.calculator-area strong { display: block; font-size: clamp(1.8rem,2.6vw,2.5rem); line-height: 1.2; font-weight: 600; letter-spacing: -.025em; font-variant-numeric: tabular-nums; }
.calculator-quantity p,.calculator-area p { margin: 10px 0 0; color: #52615f; font-size: .8125rem; line-height: 1.65; }
.calculator-area { padding-left: 24px; border-left: 1px solid var(--rule); }
.calculator-quote { display: flex; flex-direction: column; align-items: stretch; }
.calculator-quote .button { width: 100%; min-height: 52px; padding: 14px 18px; font-size: .9375rem; }
.calculator-estimate-note { margin: 0; padding-top: 18px; border-top: 1px solid var(--rule); grid-column: 1/-1; color: #52615f; font-size: .8125rem; line-height: 1.7; max-width: none; }
.calculator-summary-selection,.calculator-summary-dimensions,.calculator-summary-edit,.calculator-mobile-heading,.calculator-colour-description,.calculator-mobile-action,.calculator-steps { display: none; }
.calculator-live-status { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.calculator-noscript { margin-top: 32px; padding: 24px; border: 1px solid var(--rule); color: var(--ink); }
.calculator-page button,.calculator-page input,.calculator-page a { -webkit-tap-highlight-color: #00865f22; touch-action: manipulation; }
.calculator-page button:focus-visible,.calculator-page a:focus-visible { outline: 2px solid var(--green); outline-offset: 4px; }
.calculator-summary [data-quote-link][aria-disabled="true"] { background: #687570; cursor: not-allowed; }
.calculator-total-label { margin: 0 0 8px; color: #52615f; font-size: .8125rem; line-height: 1.5; }
.calculator-total { display: block; margin-bottom: 20px; color: var(--ink); font-size: clamp(1.25rem,1.55vw,1.75rem); font-weight: 600; line-height: 1.3; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.calculator-costing { grid-column: 1/-1; min-width: 0; padding-top: 24px; border-top: 1px solid var(--rule); }
.calculator-cost-heading { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; margin-bottom: 20px; }
.calculator-cost-heading h3 { margin: 0; font-size: 1rem; line-height: 1.5; font-weight: 600; letter-spacing: -.02em; }
.calculator-reset-accessories { min-height: 44px; padding: 8px 0; border: 0; background: transparent; color: var(--green-hover); font: inherit; font-size: .8125rem; text-decoration: underline; text-underline-offset: 4px; cursor: pointer; }
.calculator-roof-cost { margin: 0 0 24px; }
.calculator-roof-cost > div { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: start; gap: 16px 32px; }
.calculator-roof-cost dt { font-size: .9375rem; font-weight: 600; line-height: 1.5; }
.calculator-roof-cost dd { margin: 0; text-align: right; font-size: 1rem; line-height: 1.5; font-weight: 600; font-variant-numeric: tabular-nums; }
.calculator-roof-cost small,.calculator-accessory-choice small { display: block; margin-top: 6px; color: #52615f; font-size: .8125rem; line-height: 1.6; font-weight: 400; }
.calculator-accessories { min-width: 0; margin: 0; padding: 0; border: 0; }
.calculator-accessories legend { padding: 0; margin-bottom: 12px; font-size: .875rem; color: #52615f; line-height: 1.5; }
.calculator-accessory-row { display: grid; grid-template-columns: minmax(0,1fr) 120px minmax(140px,auto); align-items: center; gap: 12px 32px; padding-block: 16px; border-top: 1px solid var(--rule); }
.calculator-accessory-row[hidden] { display: none; }
.calculator-accessory-choice { display: flex; align-items: start; gap: 12px; min-height: 44px; color: var(--ink); font-size: .9375rem; line-height: 1.5; cursor: pointer; }
.calculator-accessory-choice input { flex: 0 0 20px; width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--green); cursor: pointer; }
.calculator-piece-input { display: flex; align-items: center; min-height: 44px; border: 1px solid var(--rule); border-radius: 4px; background: var(--surface); }
.calculator-piece-input:focus-within { outline: 2px solid var(--green); outline-offset: 2px; }
.calculator-piece-input input { width: 100%; min-width: 0; min-height: 44px; padding: 10px 12px; border: 0; background: transparent; color: var(--ink); font: inherit; font-size: 1rem; font-variant-numeric: tabular-nums; caret-color: var(--green); }
.calculator-piece-input input:focus-visible { outline: 0; }
.calculator-piece-input span { padding-right: 12px; font-size: .8125rem; color: #52615f; }
.calculator-piece-input:has(input:disabled) { background: #ecefed; }
.calculator-piece-input:has([aria-invalid="true"]) { border-color: #9b2727; }
.calculator-accessory-row output { text-align: right; color: var(--ink); font-size: .9375rem; line-height: 1.5; font-weight: 600; font-variant-numeric: tabular-nums; }
.calculator-accessory-basis { max-width: 85ch; margin: 12px 0 0; font-size: .8125rem; line-height: 1.7; color: #52615f; }
.calculator-custom-price { max-width: 65ch; margin: 20px 0 0; color: var(--ink); font-size: .875rem; line-height: 1.7; }
.calculator-custom-price[hidden] { display: none; }
@media (min-width: 1001px) { .calculator-quote { grid-column: 4; grid-row: 1; } }
@media (min-width: 1800px) { .calculator-model-stage { height: 580px; } }
@media (max-width: 1000px) and (min-width: 761px) { .calculator-layout { grid-template-columns: minmax(0,280px) minmax(0,1fr); gap: 24px; } .calculator-intro { align-items: start; } .calculator-intro .calculator-pricing-intro { flex-basis: 20ch; } .calculator-summary { grid-template-columns: 1fr 1fr 1fr; } .calculator-summary h2 { grid-column: 1/-1; } }
@media (max-width: 760px) {
  .calculator-shell { padding-block: 24px 48px; }
  .calculator-breadcrumb { display: none; }
  .calculator-steps { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; padding: 0; margin: 0 0 32px; list-style: none; scroll-margin-top: calc(var(--header-height) + 16px); }
  .calculator-steps button { display: flex; align-items: center; justify-content: flex-start; gap: 8px; width: 100%; min-height: 48px; padding: 0 0 12px; border: 0; border-bottom: 3px solid #dce1dd; background: transparent; color: #52615f; font: inherit; font-size: .8125rem; line-height: 1.4; font-weight: 500; cursor: pointer; }
  .calculator-steps button > span { display: grid; place-items: center; flex: 0 0 24px; height: 24px; border-radius: 50%; background: #dce1dd; font-size: .75rem; }
  .calculator-steps button[aria-current="step"] { border-color: var(--green); color: var(--green-hover); }
  .calculator-steps button[aria-current="step"] > span { background: var(--green); color: white; }
  .calculator-intro { display: block; margin-bottom: 14px; }
  .calculator-intro h1 { font-size: clamp(1.875rem,6.8vw,2.5rem); line-height: 1.17; font-weight: 600; }
  .calculator-intro > div > p { margin-top: 12px; font-size: 1rem; line-height: 1.65; }
  .calculator-intro .calculator-pricing-intro { margin-top: 12px; font-size: .8125rem; }
  .calculator-layout { display: flex; flex-direction: column; gap: 0; }
  .calculator-model { order: 0; width: 100%; margin: 0 0 28px; }
  .calculator-model-stage { height: clamp(260px,66vw,380px); min-height: 260px; margin-inline: -12px; }
  .calculator-model-fallback { min-height: 260px; }
  .calculator-model-caption { margin-top: 0; font-size: .75rem; flex-wrap: nowrap; gap: 12px; }
  .calculator-controls { order: 1; width: 100%; padding: 0; }
  .calculator-size,.calculator-colours { width: 100%; margin: 0; }
  .calculator-mobile-heading { display: block; font-size: 1.25rem; font-weight: 600; margin: 0 0 24px; letter-spacing: -.025em; line-height: 1.3; }
  .calculator-size .calculator-mobile-heading { display: none; }
  .calculator-colour-description { display: block; margin: -12px 0 24px; color: #52615f; font-size: .9375rem; line-height: 1.65; }
  .calculator-controls legend,.calculator-field > label { font-size: .9375rem; }
  .calculator-field { margin-top: 24px; }
  .calculator-input-wrap { min-height: 56px; }
  .calculator-input-wrap input { font-size: 1.125rem; padding: 14px 16px; }
  .calculator-help { font-size: .8125rem; }
  .calculator-swatches { gap: 12px; max-width: 400px; }
  .calculator-swatches label { min-height: 100px; font-size: .875rem; }
  .calculator-swatch-chip { width: 54px; height: 54px; }
  .calculator-colours legend { display: none; }
  .calculator-colour-pricing { margin-top: 24px; }
  .calculator-mobile-action { display: flex; flex-direction: column; gap: 8px; margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--rule); }
  .calculator-mobile-action .button { width: 100%; min-height: 56px; padding: 14px 16px; font-size: 1rem; }
  .calculator-back { padding: 14px; min-height: 48px; background: transparent; border: 0; color: #52615f; font: inherit; font-size: .875rem; cursor: pointer; }
  .calculator-summary { order: 1; display: flex; flex-direction: column; align-items: stretch; width: 100%; gap: 0; margin: 0; padding: 0; border: 0; }
  .calculator-summary h2 { display: none; }
  .calculator-summary-selection { display: block; margin: 0 0 18px; font-size: .9375rem; color: #52615f; line-height: 1.6; }
  .calculator-quantity strong,.calculator-area strong { font-size: clamp(2rem,9vw,3rem); }
  .calculator-quantity p,.calculator-area p { font-size: .875rem; margin-top: 8px; }
  .calculator-area { margin-top: 24px; padding: 22px 0 0; border-left: 0; border-top: 1px solid var(--rule); }
  .calculator-summary-dimensions { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; margin: 24px 0 0; padding: 20px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
  .calculator-summary-dimensions div { min-width: 0; }
  .calculator-summary-dimensions dt { color: #52615f; font-size: .75rem; line-height: 1.5; }
  .calculator-summary-dimensions dd { margin: 8px 0 0; font-size: 1rem; font-weight: 600; font-variant-numeric: tabular-nums; }
  .calculator-summary-edit { display: flex; gap: 24px; padding-block: 8px; margin-bottom: 20px; }
  .calculator-summary-edit button { min-height: 48px; background: transparent; border: 0; padding: 12px 0; color: var(--green-hover); text-decoration: underline; text-underline-offset: 5px; font: inherit; font-size: .875rem; cursor: pointer; }
  .calculator-quote .button { min-height: 56px; font-size: 1rem; }
  .calculator-costing { margin-block: 4px 28px; padding-top: 20px; }
  .calculator-cost-heading { margin-bottom: 24px; gap: 4px 16px; }
  .calculator-roof-cost > div { gap: 12px; }
  .calculator-roof-cost dd { font-size: .9375rem; }
  .calculator-accessory-row { grid-template-columns: minmax(0,1fr) 100px; gap: 12px; }
  .calculator-accessory-row output { grid-column: 2; }
  .calculator-accessory-choice { grid-row: span 2; font-size: .875rem; }
  .calculator-total { font-size: clamp(1.5rem,6vw,2rem); margin-bottom: 20px; }
  .calculator-estimate-note { margin-top: 24px; padding-top: 24px; font-size: .8125rem; }
  [data-calculator].calculator-enhanced:not([data-step="0"]) .calculator-size { display: none; }
  [data-calculator].calculator-enhanced:not([data-step="1"]) .calculator-colours { display: none; }
  [data-calculator].calculator-enhanced:not([data-step="2"]) .calculator-summary { display: none; }
  [data-calculator].calculator-enhanced[data-step="2"] .calculator-controls { display: none; }
  [data-calculator]:not(.calculator-enhanced) .calculator-colours { margin-top: 28px; }
  [data-calculator]:not(.calculator-enhanced) .calculator-summary { margin-top: 32px; }
}
@media (max-width: 360px) { .calculator-steps { gap: 8px; } .calculator-steps button { gap: 5px; font-size: .75rem; } .calculator-steps button > span { flex-basis: 20px; height: 20px; } .calculator-model-caption { font-size: .6875rem; } .calculator-swatches { gap: 7px; } }
@media (prefers-reduced-motion: reduce) { .calculator-segments span,.calculator-model-tools button { transition: none; } }