.cubic-page .tool-card { max-width: 1280px; }
.cubic-workspace { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(290px, .88fr); gap: 1.25rem; align-items: start; }
.cubic-inputs { min-width: 0; }
.cubic-input-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .9rem; margin: .9rem 0 1.1rem; }
.cubic-input-grid .field { min-width: 0; }
.cubic-areas-bar, .cubic-buy-bar { margin-top: 1.3rem; }
.cubic-areas { display: grid; gap: .9rem; margin: .75rem 0 1rem; }
.cubic-area-row, .cubic-quote-card, .cubic-result-card { min-width: 0; border: 1px solid var(--line, #d8e2dd); border-radius: 16px; background: rgba(255,255,255,.74); }
.cubic-area-row { padding: .9rem 1rem; }
.cubic-area-heading { display: flex; align-items: center; justify-content: space-between; gap: .75rem; margin-bottom: .65rem; }
.cubic-area-heading h3 { margin: 0; font-size: 1rem; }
.cubic-area-heading .button { flex: 0 0 auto; }
.cubic-row-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.cubic-row-grid .field { min-width: 0; }
.cubic-shape-fields { display: contents; }
.cubic-row-result { min-height: 1.5rem; margin: .55rem 0 0; color: var(--muted, #58665f); font-size: .9rem; line-height: 1.45; overflow-wrap: anywhere; }
.cubic-buy-grid { align-items: start; }
.cubic-quote-card { margin: 0; padding: .9rem; }
.cubic-quote-card legend { padding: 0 .4rem; color: var(--ink, #17231e); font-weight: 750; }
.cubic-quote-card .cubic-input-grid { margin: .25rem 0 0; gap: .75rem; }
.field-with-unit { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .5rem; align-items: center; }
.field-with-unit select { width: auto; min-width: 5.6rem; max-width: 7rem; }
.cubic-planning-note, .cubic-disclaimer, .cubic-formula-detail, .cubic-source-note { color: var(--muted, #58665f); font-size: .9rem; line-height: 1.65; }
.cubic-planning-note { margin: .25rem 0 .5rem; padding: .8rem 1rem; border-left: 3px solid var(--accent, #397957); background: rgba(255,255,255,.55); }
.cubic-estimate-panel { position: sticky; top: 1rem; }
.cubic-result-card { margin: .7rem 0; padding: .85rem 1rem; }
.cubic-result-card.emphasis { border-color: rgba(41, 107, 78, .35); background: rgba(237, 247, 241, .86); }
.cubic-result-value { margin-top: .35rem; font-size: clamp(1.05rem, 2vw, 1.35rem); font-weight: 780; line-height: 1.35; overflow-wrap: anywhere; }
.cubic-result-lines { margin-top: .3rem; color: var(--muted, #58665f); font-size: .92rem; line-height: 1.55; white-space: pre-line; overflow-wrap: anywhere; }
.cubic-row-results { margin: .65rem 0; }
.cubic-row-result-card { margin: .5rem 0; padding: .65rem .8rem; border: 1px solid var(--line, #d8e2dd); border-radius: 12px; background: rgba(255,255,255,.58); }
.cubic-row-result-card strong { display: block; margin-bottom: .2rem; }
.cubic-formula { color: var(--muted, #58665f); font-size: .9rem; line-height: 1.6; }
.cubic-formula-detail { margin-top: 1rem; padding: .9rem 1rem; border-left: 3px solid var(--accent, #397957); background: rgba(255,255,255,.56); }
.cubic-copy-fallback { width: 100%; max-width: 100%; margin-top: .6rem; }
.cubic-page [hidden] { display: none !important; }
.cubic-page .tool-heading h1 { font-size: clamp(1.8rem, 4vw, 2.65rem); line-height: 1.08; text-wrap: balance; }
.cubic-page .tool-heading .heading-copy { max-width: 64ch; color: #536259; font-weight: 400; line-height: 1.55; }
.cubic-page .estimate-panel .cubic-result-card { color: #203c32; background: #fffefa; border-color: #d8dfd3; }
.cubic-page .estimate-panel .cubic-result-card.emphasis { background: #e6eddd; }
.cubic-page .estimate-panel .result-label, .cubic-page .estimate-panel .cubic-result-lines { color: #536259; }
.cubic-page .estimate-panel .cubic-result-value { color: #203c32; font-variant-numeric: tabular-nums; }
.cubic-page .estimate-panel .cubic-disclaimer { color: #d1ddcd; }

@media (max-width: 960px) {
  .cubic-workspace { grid-template-columns: minmax(0, 1fr); }
  .cubic-estimate-panel { position: static; }
}

@media (max-width: 600px) {
  .cubic-input-grid, .cubic-row-grid { grid-template-columns: minmax(0, 1fr); gap: .75rem; }
  .cubic-quote-card, .cubic-area-row, .cubic-result-card { padding: .8rem; }
  .cubic-area-heading { align-items: flex-start; }
  .cubic-page .result-actions .button { width: 100%; }
}
.calculator-page.cubic-page .tool-card { padding: clamp(16px, 2.5vw, 32px); }