:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0f1115;--bg-panel:#16181d;--bg-panel-2:#1c1f26;--border:#2a2d35;--text:#f4f4f5;--text-muted:#9ca3af;--accent:#60a5fa;--accent-strong:#3b82f6;--warning-bg:#3a2a12;--warning-border:#7c5a1e;--error-bg:#3a1414;--error-border:#7c1e1e;--success:#34d399;--tier-yellow:#fbbf24;--tier-red:#f87171;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);margin:0;padding:0}body{min-height:100vh}a{color:var(--accent)}h1,h2,h3{line-height:1.25}input,select,textarea,button{font:inherit;color:inherit}#root{min-height:100vh}.app-shell{flex-direction:column;min-height:100vh;display:flex}.app-header{border-bottom:1px solid var(--border);background:var(--bg-panel);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:16px 24px;display:flex}.brand{color:var(--text);font-size:1.1rem;font-weight:700;text-decoration:none}.app-header nav{flex-wrap:wrap;gap:20px;display:flex}.app-header nav a{color:var(--text-muted);border-bottom:2px solid #0000;padding:6px 2px;font-size:.95rem;text-decoration:none}.app-header nav a.active,.app-header nav a:hover{color:var(--text);border-bottom-color:var(--accent)}.app-main{flex:1;width:100%;max-width:880px;margin:0 auto;padding:24px 16px 48px}.app-footer{text-align:center;color:var(--text-muted);padding:16px 24px 32px;font-size:.85rem}.panel{background:var(--bg-panel);border:1px solid var(--border);border-radius:10px;margin-bottom:20px;padding:20px}.panel h2{margin-top:0;font-size:1.15rem}.field-row{flex-wrap:wrap;align-items:flex-end;gap:16px;margin-bottom:12px;display:flex}.field-row label{color:var(--text-muted);flex-direction:column;flex:180px;gap:4px;font-size:.85rem;display:flex}:is(.field-row label:has(input[type=radio]),.field-row label:has(input[type=checkbox])){color:var(--text);flex-direction:row;flex:auto;align-items:center;gap:8px}input,select,textarea{background:var(--bg-panel-2);border:1px solid var(--border);color:var(--text);border-radius:6px;padding:8px 10px}textarea{resize:vertical;width:100%;font-family:ui-monospace,monospace}.indent{border-left:2px solid var(--border);margin-top:8px;padding-left:16px}.hint{color:var(--text-muted);margin:4px 0 0;font-size:.85rem}.hint.note{background:var(--bg-panel-2);border:1px solid var(--border);border-radius:8px;padding:10px 12px}.error-panel{border-color:var(--error-border);background:var(--error-bg)}.error-panel h3{margin-top:0}.warning-panel{border-color:var(--warning-border);background:var(--warning-bg)}.warning-panel ul{margin:0;padding-left:20px}.result-panel{border-color:var(--accent-strong)}.result-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:16px 0;display:grid}.result-label{color:var(--text-muted);font-size:.8rem;display:block}.result-value{margin-top:2px;font-size:1.4rem;font-weight:700;display:block}.result-value.tier-green{color:var(--success)}.result-value.tier-yellow{color:var(--tier-yellow)}.result-value.tier-red{color:var(--tier-red)}.interpretation{background:var(--bg-panel-2);border-radius:8px;padding:14px 16px;font-size:.95rem}.evaporation-curve{background:var(--bg-panel-2);border:1px solid var(--border);border-radius:8px;width:100%;height:auto}.chart-gridline,.chart-tick{stroke:var(--border);stroke-width:1px}.chart-axis-label{fill:var(--text-muted);font-size:18px}.chart-axis-title{fill:var(--text-muted);font-size:17px}.chart-curve{stroke:var(--accent);stroke-width:2.5px}.chart-observed-line{stroke:var(--success);stroke-width:1px;stroke-dasharray:4 4}.chart-user-line{stroke:var(--text-muted);stroke-width:1px;stroke-dasharray:2 4}.chart-user-point{fill:var(--accent)}.chart-observed-point{fill:var(--success)}.share-row{flex-wrap:wrap;align-items:center;gap:16px;margin-top:16px;display:flex}button{background:var(--accent-strong);cursor:pointer;border:none;border-radius:6px;padding:10px 18px;font-weight:600}button:hover{background:var(--accent)}.download-link{color:var(--success)}.error-text{color:#f87171;margin:0}.disclaimer{color:var(--text-muted);border-top:1px solid var(--border);margin-top:24px;padding-top:16px;font-size:.8rem}.article{max-width:720px;margin:0 auto}.article pre{background:var(--bg-panel-2);border:1px solid var(--border);border-radius:8px;padding:14px 16px;font-size:1rem;overflow-x:auto}.article ul{padding-left:20px}.article .worked-example{background:var(--bg-panel-2);border:1px solid var(--border);border-radius:10px;padding:20px 24px}.article .worked-example h2{margin-top:0}@media (width<=640px){.app-header{flex-direction:column;align-items:flex-start}.field-row{flex-direction:column;align-items:stretch}.field-row label{flex:auto}}