:root{--bg-page:#0b0c0f;--bg-card:#14161b;--bg-elev:#1b1e25;--border:#272b33;--text:#e8eaed;--muted:#9aa0aa;--accent:#5b9dff;--accent-dim:#2b3a55;--positive:#4ec98f;--negative:#ff6b6b;--radius:8px;--mono:"JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;--sans:system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html,body{background:var(--bg-page);color:var(--text);font-family:var(--sans);-webkit-font-smoothing:antialiased;margin:0;padding:0;font-size:17px;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{width:100%;max-width:960px;margin:0 auto;padding:0 20px}.narrow{max-width:640px}.mono{font-family:var(--mono)}.muted{color:var(--muted)}.small{font-size:.85rem}.accent{color:var(--accent)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.site-header{border-bottom:1px solid var(--border)}.site-header .nav{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding-top:16px;padding-bottom:16px;display:flex}.brand{letter-spacing:-.01em;color:var(--text);font-size:1.15rem;font-weight:680}.brand .accent{color:var(--accent)}.nav-links{gap:18px;font-size:.95rem;display:flex}.site-footer{border-top:1px solid var(--border);margin-top:64px;padding:32px 0}.site-footer p{margin:4px 0}.hero{padding:56px 20px 32px}.eyebrow{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin:0 0 14px;font-size:.78rem}.hero h1{letter-spacing:-.02em;margin:0 0 18px;font-size:clamp(2rem,5vw,3.1rem);line-height:1.08}.lede{color:var(--muted);max-width:60ch;margin:0 0 28px;font-size:1.12rem}.ask{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.ask-input{resize:vertical;background:var(--bg-page);width:100%;min-height:76px;color:var(--text);border:1px solid var(--border);font-family:var(--sans);border-radius:6px;padding:12px 14px;font-size:1rem;line-height:1.5}.ask-input:focus{outline:2px solid var(--accent-dim);border-color:var(--accent)}.ask-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:12px;display:flex}.btn{background:var(--accent);color:#06080d;cursor:pointer;border:0;border-radius:6px;padding:10px 18px;font-size:.98rem;font-weight:600}.btn:disabled{background:var(--accent-dim);color:var(--muted);cursor:not-allowed}.btn:not(:disabled):hover{filter:brightness(1.08)}.data-status{color:var(--muted);align-items:center;gap:8px;margin-top:16px;font-size:.9rem;display:flex}.live-dot{background:var(--positive);border-radius:50%;flex:none;width:8px;height:8px;display:inline-block;box-shadow:0 0 0 3px rgba(78,201,143,.18)}.backtest{padding-top:40px}.controls{flex-wrap:wrap;align-items:flex-end;gap:12px;margin:18px 0;display:flex}.field{flex-direction:column;gap:6px;display:flex}.field-label{color:var(--muted);font-size:.8rem}.select{background:var(--bg-card);color:var(--text);border:1px solid var(--border);border-radius:6px;min-width:220px;padding:9px 12px;font-size:.95rem}.select:focus{outline:2px solid var(--accent-dim);border-color:var(--accent)}.result-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-top:8px;padding:18px}.result-head{color:var(--muted);margin:0 0 14px;font-size:.85rem}.metrics{grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:16px;display:grid}.metric{background:var(--bg-elev);border:1px solid var(--border);border-radius:6px;flex-direction:column;gap:4px;padding:10px 12px;display:flex}.metric-label{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:.72rem}.metric-value{font-size:1.1rem;font-weight:600}.metric.pos .metric-value{color:var(--positive)}.metric.neg .metric-value{color:var(--negative)}.chart{width:100%}.equity-svg{background:var(--bg-page);border-radius:6px;width:100%;height:220px;display:block}.equity-svg .baseline{stroke:var(--border);stroke-width:1px;stroke-dasharray:4 4}.eq-line.pos{stroke:var(--positive)}.eq-line.neg{stroke:var(--negative)}.error{color:var(--negative)}@media (width<=720px){.metrics{grid-template-columns:repeat(2,1fr)}.select{width:100%;min-width:140px}.controls{flex-direction:column;align-items:stretch}}.universe{padding-top:24px}.section-title{letter-spacing:-.01em;margin:0 0 8px;font-size:1.4rem}.chips{flex-wrap:wrap;gap:8px;margin:18px 0 0;padding:0;list-style:none;display:flex}.chip{background:var(--bg-card);border:1px solid var(--border);border-radius:999px;align-items:baseline;gap:8px;padding:6px 14px;font-size:.9rem;display:inline-flex}.chip-sym{color:var(--text);font-weight:600}.chip-name{color:var(--muted);font-size:.82rem}.chip-index{border-color:var(--accent-dim);color:var(--accent);font-weight:600}.chip-more{color:var(--muted);border-style:dashed}.why{padding-top:36px}.cards{grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px;display:grid}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.card h3{margin:0 0 8px;font-size:1.05rem}.card p{margin:0;font-size:.95rem}@media (width<=720px){body{font-size:16px}.cards{grid-template-columns:1fr}.site-header .nav{gap:10px}.hero{padding-top:40px}.ask-row{flex-direction:column;align-items:stretch}.ask-row .btn{width:100%}}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}