.chapter-rail{position:sticky;top:14px;align-self:start}.chapter-rail__lbl{display:block;font-family:JetBrains Mono,monospace;font-size:9px;letter-spacing:.16em;color:var(--flag);text-transform:uppercase}.chapter-rail__list{list-style:none;margin:10px 0 0;padding:0;border-top:2px solid var(--ink)}.chapter-rail__item{margin:0}.chapter-rail__link{display:grid;grid-template-columns:30px minmax(0,1fr);gap:10px;align-items:baseline;padding:11px 8px 11px 10px;border-bottom:.5px solid var(--rule-faint);border-left:3px solid transparent;text-decoration:none;color:var(--ink-60);background:transparent}.chapter-rail__link:hover{text-decoration:none;color:var(--ink);background:var(--vellum-tint)}.chapter-rail__link:focus-visible{outline:2px solid var(--flag);outline-offset:-2px}.chapter-rail__link[data-active=true]{background:var(--vellum);border-left-color:var(--flag);color:var(--ink)}.chapter-rail__n{font-family:JetBrains Mono,monospace;font-size:9px;color:var(--ink-40)}.chapter-rail__link[data-active=true] .chapter-rail__n{color:var(--flag)}.chapter-rail__body{min-width:0}.chapter-rail__t{display:block;font-family:Space Grotesk,sans-serif;font-weight:500;font-size:13.5px;color:inherit}.chapter-rail__s{display:block;font-family:JetBrains Mono,monospace;font-size:7.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-40);margin-top:2px}.chapter-rail__note{font-family:"Source Serif 4",serif;font-style:italic;font-size:11.5px;line-height:1.5;color:var(--ink-40);margin:12px 0 0;padding:0 10px}@media (max-width:860px){.chapter-rail{position:static;top:auto}.chapter-rail__list{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:0}.chapter-rail__note{display:none}}