.backtest-hero{max-width:920px;margin-bottom:38px}.backtest-hero h1{font-size:clamp(40px,5.8vw,69px)}.timeline{display:grid;grid-template-columns:1fr 42px 1fr 42px 1fr;align-items:center;margin:34px 0 22px}.timeline article{border:1px solid var(--line);padding:22px;background:var(--surface);min-height:128px}.timeline article p{font-size:12px;color:var(--muted);margin:9px 0 0}.timeline article b{font-size:18px}.timeline>span{text-align:center;color:var(--muted);font-size:23px}.freeze{background:var(--green);color:var(--mint);display:inline-block;border-radius:4px;padding:7px 11px;font-size:11px;letter-spacing:1px}.reveal-band{display:flex;justify-content:space-between;align-items:center;gap:25px;margin:28px 0;background:#e6eddd;padding:24px}.reveal-band h2{font-size:22px;margin-bottom:7px}.reveal-band p{font-size:12px;max-width:640px;color:var(--muted);margin:0}.score-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:30px 0}.score-cards article{padding:26px;border:1px solid var(--line);background:var(--surface)}.score-cards strong{font-size:49px;letter-spacing:-2px;display:block;color:var(--green);margin:9px 0}.score-cards small{font-size:12px;color:var(--muted)}.metric-explanation{font-size:12px;line-height:1.75;margin-top:14px}.back-tabs{display:flex;gap:7px;margin-bottom:22px;flex-wrap:wrap}.back-tabs button{background:var(--surface);border:1px solid var(--line);padding:9px 15px;border-radius:5px;font-size:12px}.back-tabs button.active{background:var(--green);color:white}.paired-bars{display:grid;gap:20px;padding:26px;background:var(--surface);border:1px solid var(--line)}.paired-row{display:grid;grid-template-columns:120px 1fr;gap:20px;align-items:center}.paired-row b{font-size:13px}.pair{display:grid;gap:5px}.bar-track{display:flex;align-items:center;gap:10px;font-size:11px;min-height:19px}.bar-track i{display:block;height:12px;background:var(--green);min-width:1px}.bar-track.actual i{background:var(--orange)}.bar-track span{min-width:35px}.chart-key{display:flex;gap:20px;font-size:11px;margin-bottom:12px;color:var(--muted)}.chart-key i{width:9px;height:9px;display:inline-block;background:var(--green);margin-right:5px}.chart-key .actual{background:var(--orange)}.breakdown{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:22px}.breakdown>div{border:1px solid var(--line);padding:24px;background:var(--surface)}.breakdown p{font-size:13px;color:var(--muted)}.failure-list{margin:0;padding-left:20px;font-size:13px;line-height:1.8}.error-cell{color:var(--red);font-weight:600}.audit-columns{display:grid;grid-template-columns:1fr 1fr;gap:18px}.audit-columns h3{margin-top:20px}.method-code{white-space:pre-wrap;background:#eef0e8;padding:18px;border:1px solid var(--line);font-size:12px;line-height:1.8}.blind-label{border-left:4px solid #a2b593;padding:12px 18px;font-size:13px;color:var(--muted);margin-top:18px}.hide-answer{display:inline-block;filter:blur(6px);user-select:none}.score-interpretation{border:1px solid #cbb96a;background:#fbf4d9;padding:20px;font-size:14px;margin:25px 0}.backtest-audit-table{min-width:570px}.matrix-note{font-size:11px;color:var(--muted)}@media(max-width:740px){.timeline{grid-template-columns:1fr;gap:6px}.timeline>span{transform:rotate(90deg)}.timeline article{min-height:auto}.score-cards,.breakdown,.audit-columns{grid-template-columns:1fr}.reveal-band{align-items:start;flex-direction:column}.paired-row{grid-template-columns:85px 1fr;gap:10px}.paired-bars{padding:18px}.paired-row b{font-size:11px}}