:root{--bg:#f7f8fb;--card:#ffffff;--ink:#0b1526;--ink-2:#4a5568;--muted:#6b7280;--border:#e5e7eb;--brand:#0f4c81;--brand-2:#2f6dad;--chip-bg:#f0f6ff}
*{box-sizing:border-box}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;background:var(--bg);color:var(--ink)}
.container{max-width:1200px;margin:0 auto;padding:16px}
.site-header,.site-footer{background:var(--card);border-bottom:1px solid var(--border)}
.site-footer{border-top:1px solid var(--border);color:var(--muted)}
.site-header h1{margin:0 0 6px;font-size:1.75rem}
.subtitle{margin:0;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;box-shadow:0 1px 2px rgba(0,0,0,.04);margin-top:16px}
.toolbar{display:grid;grid-template-columns:1fr 1fr 320px;gap:12px;align-items:start}
.controls-grid{display:grid;grid-template-columns:repeat(5,minmax(140px,1fr));gap:12px}
.control label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:6px}
select,input[type=number]{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--ink)}
.metrics{display:flex;flex-wrap:wrap;gap:8px;align-items:end}
.chip{padding:8px 10px;border-radius:20px;border:1px solid #dbe7ff;background:var(--chip-bg);color:var(--brand-2);font-weight:600}
.your-details{border-left:1px solid var(--border);padding-left:12px}
.your-details h3{margin:0 0 8px}
.toggle{display:flex;gap:8px;align-items:center;margin-bottom:8px}
.primary{background:var(--brand);color:#fff;border:none;padding:10px 14px;border-radius:8px;cursor:pointer}
.primary:hover{background:var(--brand-2)}
.readout{margin-top:8px}
.caption{color:var(--muted)}
.chart-wrap{position:relative}
#chart{background:#fff;border:1px solid var(--border);border-radius:10px}
.tooltip{position:absolute;pointer-events:none;background:#111827;color:#fff;padding:8px 10px;border-radius:6px;font-size:12px;box-shadow:0 6px 16px rgba(0,0,0,.2)}
.axis path,.axis line{stroke:#d1d5db}
.grid line{stroke:#eef2f7}
.line{fill:none;stroke:var(--brand);stroke-width:2.5}
.marker-line{stroke-width:2}
.marker-median{stroke:#10b981}
.marker-p90{stroke:#f59e0b}
.marker-top1{stroke:#ef4444;stroke-dasharray:6 4}
.income-marker{stroke:#6b7280;stroke-dasharray:4 3}
.legend-label{font-size:12px;fill:var(--ink-2)}
.actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}
.actions button{padding:12px;border:1px solid var(--border);background:#fff;border-radius:8px;cursor:pointer;visibility:visible;opacity:1}
@media (max-width:1000px){.toolbar{grid-template-columns:1fr}.your-details{border-left:none;padding-left:0}}