:root{--color-primary: #1a5276;--color-primary-light: #2e86c1}html,body,#root{height:100%;margin:0;font-family:-apple-system,system-ui,sans-serif}.cell-invalid{border:2px solid #d9363e!important;background-color:#fff1f0}.row-invalid>td{background-color:#fff1f0!important}.row-invalid:hover>td{background-color:#ffe7e6!important}.heatcalc-header{background:var(--color-primary);color:#fff;padding:12px 24px;display:flex;align-items:center;gap:16px}.heatcalc-sidebar{background:#ebf5fb;width:220px;padding:16px 0}.heatcalc-content{flex:1;padding:24px;background:#fff}