.calculator-hero {
  padding: 54px 0 42px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.calculator-hero__inner { max-width: 920px; }
.calculator-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  color: var(--petrol);
  font-size: .78rem;
  font-weight: 800;
  text-decoration: none;
}
.calculator-hero h1 {
  max-width: 820px;
  margin: 12px 0 13px;
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 5vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -.045em;
}
.calculator-hero p { max-width: 760px; margin: 0; color: var(--muted); font-size: 1rem; }
.calculator-section { padding: 48px 0 96px; }
.calculator-layout { display: grid; gap: 22px; }
.legacy-warning {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 13px;
  align-items: start;
  max-width: 920px;
  padding: 17px 18px;
  border: 1px solid rgba(138, 98, 19, .28);
  border-radius: var(--radius);
  background: var(--warning-pale);
  color: var(--warning);
}
.legacy-warning__mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid rgba(138, 98, 19, .35);
  border-radius: 50%;
  font-family: var(--font-display);
  font-weight: 900;
}
.legacy-warning strong { display: block; font-size: .8rem; }
.legacy-warning p { margin: 2px 0 0; font-size: .8rem; line-height: 1.5; }

.calculator-workspace { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr); gap: 22px; align-items: start; }
.calculator-form,
.calculator-result {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.calculator-form { padding: 30px; }
.calculator-result { position: sticky; top: 104px; overflow: hidden; }
.calculator-result__body { padding: 28px; }
.calculator-result__heading { margin-bottom: 21px; }
.calculator-result__heading h2 { margin: 4px 0 0; font-family: var(--font-display); font-size: 1.55rem; }
.calculator-result__heading p { margin: 5px 0 0; color: var(--muted); font-size: .78rem; }
.calculator-panel__heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; margin-bottom: 22px; }
.calculator-panel__heading h2 { margin: 2px 0 0; font-family: var(--font-display); font-size: 1.25rem; }
.step-kicker { color: var(--petrol); font-size: .65rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }

.calculator-field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.calculator-field { display: grid; min-width: 0; gap: 7px; }
.calculator-field--wide { grid-column: 1 / -1; }
.calculator-field--compact { max-width: 380px; }
.calculator-field > span,
.calculator-field legend,
.choice-fieldset legend { color: var(--ink-soft); font-size: .78rem; font-weight: 780; }
.calculator-field b { color: var(--orange); }
.calculator-field input,
.calculator-field select {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--ink);
  padding: 11px 13px;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}
.calculator-field input:focus,
.calculator-field select:focus { border-color: var(--petrol); box-shadow: 0 0 0 4px rgba(11,91,88,.1); outline: 0; }
.calculator-field input[aria-invalid="true"],
.calculator-field select[aria-invalid="true"] { border-color: var(--danger); }
.calculator-hint { margin: 14px 0 0; color: var(--muted); font-size: .76rem; }
.calculator-actions { display: flex; gap: 10px; margin-top: 25px; padding-top: 22px; border-top: 1px solid var(--line); }
.calculator-divider { height: 1px; margin: 28px 0; background: var(--line); }

.segmented-field,
.choice-fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.segmented-control { display: grid; grid-template-columns: repeat(2, 1fr); gap: 7px; }
.segmented-control label { cursor: pointer; }
.segmented-control input { position: absolute; opacity: 0; pointer-events: none; }
.segmented-control span {
  display: grid;
  min-height: 46px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--ink-soft);
  font-size: .8rem;
  font-weight: 800;
}
.segmented-control input:checked + span { border-color: var(--petrol); background: var(--petrol); color: white; }
.segmented-control input:focus-visible + span { outline: 3px solid rgba(231,111,61,.55); outline-offset: 3px; }

.choice-fieldset { margin-bottom: 23px; }
.choice-fieldset legend { margin-bottom: 9px; }
.choice-grid { display: grid; gap: 9px; }
.choice-grid--four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.choice-card { min-width: 0; cursor: pointer; }
.choice-card input { position: absolute; opacity: 0; pointer-events: none; }
.choice-card > span { display: grid; min-height: 82px; align-content: center; padding: 14px; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.choice-card strong { font-family: var(--font-display); font-size: .87rem; }
.choice-card small { margin-top: 4px; color: var(--muted); font-size: .66rem; }
.choice-card input:checked + span { border-color: var(--petrol); background: var(--petrol-pale); box-shadow: inset 0 0 0 1px var(--petrol); }
.choice-card input:focus-visible + span { outline: 3px solid rgba(231,111,61,.55); outline-offset: 3px; }
.check-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.check-grid--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.check-card { display: grid; grid-template-columns: 18px 1fr; gap: 9px; align-items: start; padding: 11px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: white; cursor: pointer; }
.check-card:has(input:checked) { border-color: var(--petrol); background: var(--petrol-pale); }
.check-card input { width: 17px; height: 17px; margin: 2px 0 0; accent-color: var(--petrol); }
.check-card span { color: var(--ink-soft); font-size: .76rem; line-height: 1.4; }
.check-card small { color: var(--petrol); font-weight: 800; }

.repeater-list { display: grid; gap: 10px; }
.repeater-row { display: grid; grid-template-columns: minmax(170px, 1fr) minmax(125px, .65fr) 38px; gap: 10px; align-items: end; padding: 13px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.repeater-row--commercial { grid-template-columns: minmax(180px, 1.1fr) minmax(125px, .75fr) minmax(95px, .5fr) 38px; }
.icon-button { display: grid; width: 38px; height: 48px; place-items: center; border: 0; border-radius: var(--radius-sm); background: transparent; color: var(--danger); font-size: 1.35rem; }
.icon-button:hover { background: var(--danger-pale); }
.inline-add { display: grid; grid-template-columns: minmax(230px, 1fr) auto; gap: 10px; align-items: end; margin-bottom: 12px; }

.result-stat-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.result-stat { min-width: 0; padding: 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.result-stat--primary { border-color: rgba(11,91,88,.35); background: var(--petrol-pale); }
.result-stat--danger { border-color: rgba(166,60,53,.28); background: var(--danger-pale); }
.result-stat span { display: block; color: var(--muted); font-size: .65rem; line-height: 1.35; }
.result-stat strong { display: block; overflow-wrap: anywhere; margin-top: 4px; font-family: var(--font-display); font-size: 1.17rem; line-height: 1.25; }
.result-stat--primary strong { color: var(--petrol); }
.result-stat--danger strong { color: var(--danger); }
.result-section { margin-top: 23px; }
.result-section h3 { margin: 0 0 9px; font-family: var(--font-display); font-size: .88rem; }
.result-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.result-table { width: 100%; border-collapse: collapse; font-size: .72rem; }
.result-table th,
.result-table td { padding: 10px 11px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.result-table th { color: var(--muted); font-size: .62rem; letter-spacing: .04em; text-transform: uppercase; }
.result-table tr:last-child td { border-bottom: 0; }
.result-note { margin: 18px 0 0; padding: 12px; border-radius: var(--radius-sm); background: var(--warning-pale); color: var(--warning); font-size: .69rem; }
.calculator-error { padding: 22px; color: var(--danger); }
.calculator-error strong { display: block; margin-bottom: 4px; font-family: var(--font-display); }
.calculator-error p { margin: 0; font-size: .8rem; }

@media (max-width: 980px) {
  .calculator-workspace { grid-template-columns: 1fr; }
  .calculator-result { position: static; }
}

@media (max-width: 680px) {
  .calculator-hero { padding: 38px 0 31px; }
  .calculator-hero h1 { font-size: 2.45rem; }
  .calculator-section { padding: 28px 0 64px; }
  .calculator-form { padding: 20px; }
  .calculator-result__body { padding: 20px; }
  .calculator-field-grid,
  .choice-grid--four,
  .check-grid,
  .check-grid--two,
  .result-stat-grid { grid-template-columns: 1fr; }
  .repeater-row,
  .repeater-row--commercial { grid-template-columns: 1fr 1fr 38px; }
  .repeater-row--commercial .calculator-field:first-child { grid-column: 1 / -1; }
  .inline-add { grid-template-columns: 1fr; }
  .inline-add .button { width: 100%; }
  .calculator-panel__heading { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 430px) {
  .repeater-row,
  .repeater-row--commercial { grid-template-columns: 1fr 38px; }
  .repeater-row .calculator-field { grid-column: 1 / -1; }
  .repeater-row .icon-button { grid-column: 2; grid-row: 1; }
  .calculator-actions { flex-direction: column; }
  .calculator-actions .button { width: 100%; }
}