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alternate;will-change:transform}@keyframes bubble-rise{0%{transform:translateZ(0) scale(.85);opacity:0}12%{opacity:1}88%{opacity:1}to{transform:translate3d(0,-118vh,0) scale(1.1);opacity:0}}@keyframes bubble-sway{0%{transform:translate(calc(var(--drift) * -1))}to{transform:translate(var(--drift))}}.bubble-burst{position:fixed;top:0;right:0;bottom:0;left:0;z-index:25;overflow:hidden;pointer-events:none}.burstbubble{position:absolute;bottom:-8vh;left:var(--bx);width:var(--bsize);height:var(--bsize);border-radius:50%;border:1px solid var(--burst-line);background:radial-gradient(circle at 30% 26%,#fffffff2,#fff0 44%),radial-gradient(circle at 50% 50%,var(--burst-glow) 0%,rgba(255,255,255,0) 74%);opacity:0;animation:bubble-burst var(--bdur) cubic-bezier(.25,.7,.35,1) var(--bdelay) both;will-change:transform,opacity}@keyframes bubble-burst{0%{transform:translateZ(0) scale(.35);opacity:0}18%{opacity:var(--bo)}70%{opacity:var(--bo)}to{transform:translate3d(var(--bdrift),calc(var(--brise) * -1),0) scale(1.05);opacity:0}}@media(max-width:700px){.bubble:nth-child(n+11){display:none}}@media(prefers-reduced-motion:reduce){.bubble{bottom:auto;top:var(--y);animation:none}.bubble-inner{animation:none}}.brand-title,.hero h1,.toc h2,.chapter-head,.extra h1,.appendix h1,.rsection-head,.rule-head,.appx h2,.richtext h3,.richtext h4,.popup-title,.navgroup{font-family:var(--font-head)}.rule-title-alt{font-family:var(--font-body)}.hero h1,.chapter-head,.extra h1,.appendix h1{background:linear-gradient(100deg,var(--accent-strong),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}.hero-sub:after{content:"";display:block;width:5.5rem;height:3px;margin-top:.55rem;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--accent-soft))}.toc-card{position:relative;overflow:hidden;transition:border-color .15s,transform .12s,box-shadow .15s}.toc-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--accent),var(--accent-strong));opacity:0;transition:opacity .15s}.toc-card:hover{transform:translateY(-2px);box-shadow:0 6px 18px #083e6929}.toc-card:hover:before{opacity:1}:root[data-theme=dark] .toc-card:hover{box-shadow:0 6px 18px #00000073}.rsection-head,.appx h2{border-bottom:2px solid transparent;border-image:linear-gradient(90deg,var(--accent),var(--accent-soft)) 1}.appx-figure,.signal{background:var(--surface)}.signal figcaption{color:var(--text)}:root[data-theme=dark] .appx-figure img,:root[data-theme=dark] .signal img{background:#fff;border-radius:6px}@media(min-width:900px){.sidenav .sidenav-list{scrollbar-width:thin;margin-top:1rem;padding:.9rem .6rem;background:var(--panel);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);backdrop-filter:blur(6px) saturate(1.05);-webkit-backdrop-filter:blur(6px) saturate(1.05)}}.navitem.active{box-shadow:inset 2px 0 0 var(--accent)}