.calculator-page.square-page .tool-card { max-width: 1180px; padding: clamp(16px, 3vw, 32px); }
.square-page .tool-heading h1 { font-size: clamp(2rem, 4vw, 2.85rem); }
.square-page .heading-copy { max-width: 64ch; }
.square-workspace { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(290px, .88fr); gap: 1.25rem; align-items: start; }
.square-inputs { min-width: 0; }
.square-input-grid, .square-row-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .9rem; margin: .9rem 0 1rem; }
.square-row-grid { margin: 0; align-items: start; }
.square-row-grid [data-shape-fields] { display: contents; }
.square-input-grid .field, .square-row-grid .field { min-width: 0; }
.square-areas-bar { margin-top: 1.2rem; }
.square-areas { display: grid; gap: .85rem; margin: .75rem 0 1rem; }
.square-area-row, .square-result-card { min-width: 0; border: 1px solid var(--line, #d8e2dd); border-radius: 4px; background: rgba(255,255,255,.74); }
.square-area-row { padding: .9rem 1rem; }
.square-area-heading { display: flex; align-items: center; justify-content: space-between; gap: .75rem; margin-bottom: .65rem; }
.square-area-heading h3 { margin: 0; font-size: 1rem; }
.square-area-heading .button { flex: 0 0 auto; }
.square-row-result { min-height: 1.4rem; margin: .55rem 0 0; color: var(--muted, #58665f); font-size: .9rem; overflow-wrap: anywhere; }
.field-with-unit { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .5rem; align-items: center; }
.field-with-unit span { color: var(--muted, #58665f); font-size: .9rem; }
.square-estimate-panel { position: sticky; top: 1rem; }
.square-result-card { margin: .7rem 0; padding: .85rem 1rem; }
.square-result-card.emphasis { border-color: #63816e; background: #294a3b; color: #fffefa; }
.square-result-value { margin-top: .35rem; font-size: clamp(1.05rem, 2vw, 1.35rem); font-weight: 780; line-height: 1.35; overflow-wrap: anywhere; }
.square-result-lines { margin-top: .3rem; color: #dce6d7; font-size: .92rem; line-height: 1.55; white-space: pre-line; overflow-wrap: anywhere; }
.square-row-results { margin: .65rem 0; }
.square-row-result-card { margin: .5rem 0; padding: .65rem .8rem; border: 1px solid #63816e; border-radius: 3px; background: #294a3b; color: #fffefa; overflow-wrap: anywhere; }
.square-row-result-card strong { display: block; margin-bottom: .2rem; }
.square-formula, .square-disclaimer { color: var(--muted, #58665f); font-size: .9rem; line-height: 1.65; }
.square-estimate-panel .square-disclaimer, .square-estimate-panel .copy-status { color: #dce6d7; }
.square-formula { margin-top: .8rem; padding: .85rem 1rem; border-left: 3px solid var(--accent, #397957); background: rgba(255,255,255,.56); }
.square-copy-fallback { width: 100%; max-width: 100%; margin-top: .6rem; }
.square-page [hidden] { display: none !important; }
@media (max-width: 960px) { .square-workspace { grid-template-columns: minmax(0, 1fr); } .square-estimate-panel { position: static; } }
@media (max-width: 600px) { .square-input-grid, .square-row-grid { grid-template-columns: minmax(0, 1fr); gap: .75rem; } .square-area-row, .square-result-card { padding: .8rem; } .square-area-heading { align-items: flex-start; } .square-page .result-actions .button { width: 100%; } }
.square-shape-note { grid-column: 1 / -1; margin: 0; font-size: .88rem; line-height: 1.6; }
.square-triangle-guide { display: grid; grid-template-columns: 1.4fr 1fr; align-items: start; gap: clamp(1rem, 3vw, 2.5rem); }
.square-triangle-diagram { margin: 0; padding: .75rem; background: #f0f3e9; }
.square-triangle-diagram svg { display: block; width: 100%; height: auto; }
.square-triangle-diagram figcaption { font-size: .85rem; line-height: 1.6; color: #465541; }
@media (max-width: 760px) { .square-triangle-guide { grid-template-columns: 1fr; } }