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.aurora-live{position:absolute;inset:0;width:100%;height:100%;opacity:.67;pointer-events:none}.feature-rail{height:300vh}.rail-pin{position:sticky;top:0;overflow:hidden;height:100vh;display:grid;align-content:center;background:#0a1321bb;backdrop-filter:blur(12px)}.rail-progress{width:min(1120px,88vw);margin:0 auto 1rem;display:flex;align-items:center;gap:1rem;color:#bbfff4;font-variant-numeric:tabular-nums}.pin-track{height:2px;flex:1;background:#79e1d342}.pin-line{height:100%;display:block;background:#79e1d3;transform:scaleX(0);transform-origin:left}.rail{display:flex;width:max-content}.chapter{width:100vw;box-sizing:border-box;padding:0 max(6vw,calc((100vw - 1120px)/2));display:grid;grid-template-columns:minmax(210px,1fr) minmax(0,2fr);gap:clamp(1rem,4vw,4rem);align-items:center;perspective:1300px}.chapter h2{font-size:clamp(1.8rem,4vw,4rem);line-height:1.06}.chapter img{width:100%;max-height:62vh;object-fit:contain;border-radius:16px;background:#091622;box-shadow:0 18px 48px #0009;border:1px solid #88f7df54}.reduced .feature-rail{height:auto}.reduced .rail-pin{position:static;height:auto;padding:2rem 0}.reduced .rail,.rail{transform:none}.reduced .rail{display:grid;width:100%;gap:2rem}.reduced .chapter{width:100%;opacity:1!important}.reduced .rail-progress{display:none}.reduced [data-light]::after{display:none}@media(max-width:799px){.feature-rail{height:auto}.rail-pin{position:static;height:auto;padding:2rem 0}.rail-progress{display:none}.rail{display:grid;width:100%;gap:2rem}.chapter{width:100%;grid-template-columns:1fr;opacity:1!important}}@media(prefers-reduced-motion:reduce){.feature-rail{height:auto}.rail-pin{position:static;height:auto;padding:2rem 0}.rail{display:grid;width:100%;gap:2rem}.chapter{width:100%}.rail-progress{display:none}}
.nav .brand,.navlinks>a,.motion-toggle{white-space:nowrap}.nav .brand{flex-shrink:0}.navlinks{flex-wrap:wrap;justify-content:flex-end}.navlinks .button{min-width:0}.index .steps{list-style:none}html[data-theme=day] .chapter,html[data-theme=day] .download-card,html[data-theme=day] .feature,html[data-theme=day] footer,html[data-theme=day] header{color:#ecf5fb}html[data-theme=day] .chapter h2,html[data-theme=day] .download-card h2{color:#ecf5fb}@media(max-width:1030px){.navlinks .desktop{display:none}}@media(max-width:480px){.nav{gap:.45rem}.nav .brand{font-size:.9rem;gap:.25rem}.nav .brand img{width:28px;height:28px}.navlinks{gap:.4rem}.navlinks .motion-toggle{font-size:.64rem;padding:.3rem .45rem}.navlinks>a{font-size:.74rem}.navlinks .button{padding:.45rem .55rem}}