#js-tool-container-gost-3900-petroleum-density-calculator .gpd-calculator-layout{display:flex;flex-direction:column;gap:20px;font-family:var(--font-sans);color:var(--text-primary)}#js-tool-container-gost-3900-petroleum-density-calculator .gpd-form-pane{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:22px;display:flex;flex-direction:column;gap:16px}#js-tool-container-gost-3900-petroleum-density-calculator .gpd-grid-2col{display:grid;grid-template-columns:1fr 1fr;gap:16px}#js-tool-container-gost-3900-petroleum-density-calculator .gpd-grid-3col{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}@media (max-width:768px){#js-tool-container-gost-3900-petroleum-density-calculator .gpd-grid-2col,#js-tool-container-gost-3900-petroleum-density-calculator .gpd-grid-3col{grid-template-columns:1fr}}#js-tool-container-gost-3900-petroleum-density-calculator .gpd-alert-box{padding:12px 16px;border-radius:var(--radius-sm);font-size:0.875rem;font-weight:600;background:var(--warning-light);border:1px solid var(--warning);color:var(--text-primary);line-height:1.45}#js-tool-container-gost-3900-petroleum-density-calculator .gpd-cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}#js-tool-container-gost-3900-petroleum-density-calculator .gpd-card{background:var(--bg-primary);border:1px solid var(--border-color);border-left:4px solid var(--accent-primary);border-radius:var(--radius-md);padding:16px;display:flex;flex-direction:column;gap:6px}#js-tool-container-gost-3900-petroleum-density-calculator .gpd-res-val{font-size:clamp(1.2rem,2.3vw,1.5rem);font-weight:800;color:var(--text-primary);font-variant-numeric:tabular-nums}#js-tool-container-gost-3900-petroleum-density-calculator .gpd-unit{font-size:0.85rem;font-weight:600;color:var(--text-secondary)}#js-tool-container-gost-3900-petroleum-density-calculator .gpd-subtext{font-size:0.775rem;color:var(--text-muted);font-weight:600}