.calc {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 28px;
  align-items: start;
}
.calc-main { min-width: 0; }
.calc-summary {
  position: sticky;
  top: 92px;
  padding: 18px 16px;
  border: 2px solid #0F172A;
  background: #0F172A;
  color: #E2E8F0;
}
.calc-summary h2,
.calc-summary h3 {
  margin: 0 0 10px;
  color: #F59E0B;
  font-weight: 700;
}
.calc-summary p {
  margin: 0 0 8px;
  color: #E2E8F0;
  line-height: 1.55;
}
.calc-volume {
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: #F59E0B;
}
.calc-paths,
.calc-homes,
.calc-purpose,
.calc-zones {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
}
.calc-purpose { border: 0; padding: 0; }
.calc-purpose legend { margin-bottom: 8px; color: #334155; }
.calc-paths button,
.calc-homes button,
.calc-purpose button,
.calc-zone button,
.calc-stepper button {
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid #CBD5E1;
  background: #FFFFFF;
  color: #334155;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.calc-paths button.is-on,
.calc-homes button.is-on,
.calc-purpose button.is-on,
.calc-zone button.is-on,
.calc-paths button[aria-selected="true"] {
  border-color: #0F172A;
  background: #0F172A;
  color: #FFFFFF;
}
.calc-paths button:focus-visible,
.calc-homes button:focus-visible,
.calc-purpose button:focus-visible,
.calc-zone button:focus-visible,
.calc-stepper button:focus-visible,
.calc-search:focus-visible,
.calc-measure input:focus-visible,
.calc-measure button:focus-visible,
.calc-bar button:focus-visible {
  outline: 2px solid #F59E0B;
  outline-offset: 2px;
}
.calc-paths small {
  display: block;
  color: #64748B;
  font-size: 11px;
}
.calc-note { color: #334155; max-width: 62ch; }
.calc-summary .calc-note { color: #CBD5E1; }
.calc-search,
.calc-measure input {
  width: 100%;
  box-sizing: border-box;
  height: 44px;
  margin: 0 0 12px;
  padding: 0 12px;
  border: 1px solid #CBD5E1;
  background: #FFFFFF;
  color: #0F172A;
  font: inherit;
  color-scheme: light;
  caret-color: #0F172A;
}
.calc-search::placeholder,
.calc-measure input::placeholder {
  color: #94A3B8;
  opacity: 1;
}
.calc-catalog h3,
.calc-chosen h3,
.calc-measure h3 { margin: 18px 0 8px; font-size: 16px; color: #0F172A; }
.calc-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid #E5E7EB;
  color: #0F172A;
}
.calc-stepper { display: flex; align-items: center; gap: 4px; }
.calc-stepper span { min-width: 1.5em; text-align: center; color: #0F172A; font-weight: 700; }
.calc-measure { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr) auto; gap: 8px; align-items: start; margin-top: 18px; }
.calc-measure h3 { grid-column: 1 / -1; }
.calc-field { min-width: 0; }
.calc-field-error { margin: 4px 0 0; font-size: 14px; line-height: 1.35; color: #0F172A; }
.calc-field-error:empty { display: none; }
.calc-measure input[aria-invalid="true"] { border-color: #F59E0B; }
.calc-measure button {
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid #F59E0B;
  background: #F59E0B;
  color: #0F172A;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.calc-soon { max-width: 46ch; padding: 8px 0 16px; }
.calc-bar { display: none; }
@media (max-width: 820px) {
  .calc { grid-template-columns: 1fr; }
  .calc-summary { position: static; display: none; }
  .calc.is-summary-open .calc-summary {
    display: block;
    margin-bottom: var(--calc-bar-space, calc(64px + env(safe-area-inset-bottom, 0px)));
    scroll-margin-bottom: var(--calc-bar-space, calc(64px + env(safe-area-inset-bottom, 0px)));
  }
  .calc:not(.is-summary-open) [data-calc-main] {
    padding-bottom: var(--calc-bar-space, calc(64px + env(safe-area-inset-bottom, 0px)));
  }
  .calc-measure { grid-template-columns: 1fr 1fr; }
  .calc-measure button { grid-column: 1 / -1; }
  .calc-bar {
    display: block;
    position: sticky;
    bottom: 0;
    z-index: 5;
    margin-top: 12px;
    background: #0F172A;
    color: #E2E8F0;
    border-top: 1px solid #1E293B;
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  .calc-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    min-height: 52px;
    color: #E2E8F0;
  }
  .calc-bar-inner strong,
  .calc-bar .calc-volume {
    color: #F59E0B;
    font-weight: 700;
  }
  .calc-bar button {
    min-height: 44px;
    padding: 8px 12px;
    border: 1px solid #F59E0B;
    background: #F59E0B;
    color: #0F172A;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
  }
}
@media (prefers-reduced-motion: reduce) {
  .calc, .calc * { transition: none; }
}
.transport-box,.quote-dock .transport-box,.calc-summary .transport-box{display:grid;gap:10px;margin:12px 0 4px;padding:12px 0 4px;border:0;border-top:1px solid #334155;min-width:0}
.transport-box legend,.quote-dock .transport-box legend,.calc-summary .transport-box legend{padding:0;margin:0 0 2px;color:#F59E0B;font-size:14px;font-weight:700;line-height:1.4}
.transport-box label{display:grid;grid-template-columns:18px 1fr;gap:10px;align-items:start;margin:0;color:#FFFFFF;font-size:13px;line-height:1.5;cursor:pointer}
.transport-box label strong{color:#F59E0B;font-weight:700}
.transport-box input[type=radio],.transport-box input[type=checkbox]{width:16px;height:16px;margin:3px 0 0;accent-color:#F59E0B;flex-shrink:0}
.transport-note,.transport-box .transport-note,.calc-summary p.transport-note{margin:4px 0 0;color:#F59E0B;font-size:13px;font-weight:600;line-height:1.5}
.transport-note[hidden]{display:none}
body.page-wizard .quote-dock .transport-box legend,body.page-home .quote-dock .transport-box legend,body.page-wizard .calc-summary .transport-box legend{color:#F59E0B}
body.page-wizard .quote-dock .transport-box label,body.page-home .quote-dock .transport-box label,body.page-wizard .calc-summary .transport-box label,body.page-wizard .calc-summary .transport-box span{color:#FFFFFF}
body.page-wizard .quote-dock .transport-box label strong,body.page-home .quote-dock .transport-box label strong,body.page-wizard .calc-summary .transport-box label strong{color:#F59E0B}
body.page-wizard .quote-dock p.transport-note,body.page-home .quote-dock p.transport-note,body.page-wizard .calc-summary p.transport-note,body.page-wizard .calc-summary .transport-note{color:#F59E0B}