.singularity-root .cpa{--cpa-nav:59px;--cpa-bar:48px;--cpa-rail-w:220px;--cpa-gap:clamp(28px, 4vw, 56px);--cpa-mark:var(--tc-accent)}.singularity-root .cpa-header{padding:clamp(48px, 6vw, 76px) var(--tc-gut) calc(var(--cpa-gap) - 8px)}.singularity-root .cpa-lead{grid-template-columns:var(--cpa-rail-w) minmax(0, 1fr);gap:var(--cpa-gap);display:grid}.singularity-root .cpa-lead-rail{flex-direction:column;align-items:flex-start;gap:16px;display:flex}.singularity-root .cpa-back{color:var(--tc-ink-2);align-items:center;gap:7px;font-size:13px;transition:color .16s;display:inline-flex}.singularity-root .cpa-back:hover{color:var(--tc-ink)}.singularity-root .cpa-back svg{width:14px;height:14px}.singularity-root .cpa-lead-tags{flex-wrap:wrap;gap:6px;display:flex}.singularity-root .cpa-lead-tags span{border:1px solid var(--tc-hair);font-family:var(--tc-mono);color:var(--tc-ink-2);border-radius:999px;padding:2px 9px;font-size:11px}.singularity-root .cpa-crumb{color:var(--tc-ink-3);align-items:center;gap:6px;font-size:12.5px;display:flex}.singularity-root .cpa-crumb a:hover{color:var(--tc-ink)}.singularity-root .cpa-copy h1{max-width:22ch;font-family:var(--tc-disp);letter-spacing:-.032em;color:var(--tc-ink);margin-top:12px;font-size:clamp(30px,3.9vw,50px);font-weight:600;line-height:1.05}.singularity-root .cpa-summary{max-width:58ch;color:var(--tc-ink-2);margin-top:18px;font-size:16px;line-height:1.58}.singularity-root .cpa-byline{color:var(--tc-ink-3);flex-wrap:wrap;align-items:center;gap:8px;margin-top:24px;font-size:13px;display:flex}.singularity-root .cpa-byline time{font-family:var(--tc-mono);letter-spacing:.02em;font-size:12px}.singularity-root .cpa-cover{border:1px solid var(--tc-hair);border-radius:6px;margin-top:22px;overflow:hidden}@media (min-width:981px){.singularity-root .cpa-cover{grid-column:2}}.singularity-root .cpa-dither{background:color-mix(in srgb, var(--tc-ink) 4%, transparent);display:block;overflow:hidden}.singularity-root .cpa-dither svg{width:100%;height:100%;display:block}.singularity-root .cpa-dither text{font-family:var(--tc-disp);font-weight:600}.singularity-root .cpa-dither pattern path{fill:var(--cpa-mark)}.singularity-root .cpa-cover .cpa-dither{aspect-ratio:2}.singularity-root .cpa-dither.is-card{aspect-ratio:16/6}.singularity-root .cpa-grid{grid-template-columns:var(--cpa-rail-w) minmax(0, 1fr);gap:var(--cpa-gap);padding-left:var(--tc-gut);display:grid}.singularity-root .cpa-rail,.singularity-root .cpa-main{min-width:0}.singularity-root .cpa-rail-sticky{top:calc(var(--cpa-nav) + 18px);position:sticky}.singularity-root .cpa-toc{padding:30px 26px 30px 0}.singularity-root .cpa-toc h2{font-family:var(--tc-sans);letter-spacing:.14em;text-transform:uppercase;color:var(--tc-ink-3);align-items:center;gap:8px;margin-bottom:18px;font-size:12px;font-weight:600;display:flex}.singularity-root .cpa-toc h2 .cpa-ring{margin-left:auto}.singularity-root .cpa-toc-list{border-left:1px solid var(--tc-hair);flex-direction:column;display:flex}.singularity-root .cpa-toc-item{color:var(--tc-ink-2);border-left:1px solid #0000;margin-left:-1px;padding:5px 0 5px 14px;font-size:12.5px;line-height:1.45;transition:color .16s,border-color .16s}.singularity-root .cpa-toc-item[data-depth="3"]{padding-left:24px}.singularity-root .cpa-toc-item:hover{color:var(--tc-ink)}.singularity-root .cpa-toc-item[data-active=true]{border-left-color:var(--cpa-mark);color:var(--tc-ink)}.singularity-root .cpa-ring{width:16px;height:16px;color:var(--cpa-mark);flex:none}.singularity-root .cpa-ring-track{stroke:var(--tc-hair)}.singularity-root .cpa-ring-arc{stroke:currentColor;transition:stroke-dashoffset .24s}.singularity-root .cpa-toc-pop{display:none}.singularity-root .cpa-toc-bar{width:100%;height:var(--cpa-bar);padding-inline:var(--tc-gut);font-family:var(--tc-sans);color:var(--tc-ink-2);cursor:pointer;background:0 0;border:0;align-items:center;gap:10px;font-size:13px;display:flex}.singularity-root .cpa-toc-bar .cpa-ring{width:18px;height:18px}.singularity-root .cpa-toc-bar-label{text-align:start;text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.singularity-root .cpa-toc-bar svg:last-child{flex:none;width:16px;height:16px;transition:transform .18s}.singularity-root .cpa-toc-bar svg:last-child.is-open{transform:rotate(180deg)}.singularity-root .cpa-toc-panel{padding:14px var(--tc-gut);border-top:1px solid var(--tc-hair)}.singularity-root .cpa-prose{width:min(100%,700px);padding:30px var(--tc-gut) clamp(64px, 7vw, 96px) 0;font-family:var(--tc-sans);color:var(--tc-ink-2);font-size:15.5px;line-height:1.74}.singularity-root .cpa-prose h2,.singularity-root .cpa-prose h3{scroll-margin-top:calc(var(--cpa-nav) + 26px);font-family:var(--tc-disp);letter-spacing:-.025em;color:var(--tc-ink);font-weight:600;line-height:1.1}.singularity-root .cpa-prose h2{margin-top:1.7em;font-size:clamp(21px,2.2vw,27px)}.singularity-root .cpa-prose h3{margin-top:1.6em;font-size:clamp(17px,1.7vw,20px)}.singularity-root .cpa-prose p{margin-block:1.15em}.singularity-root .cpa-prose ul{margin-block:1.15em;padding-left:20px;list-style:outside}.singularity-root .cpa-prose li{margin-block:.35em}.singularity-root .cpa-prose strong{color:var(--tc-ink);font-weight:600}.singularity-root .cpa-prose :is(p,li,h2,h3)>code{font-family:var(--tc-mono);border:1px solid var(--tc-hair);background:var(--tc-white);color:var(--tc-ink);border-radius:4px;padding:1px 5px;font-size:.86em}.singularity-root .cpa-prose hr{border:0;border-top:1px solid var(--tc-hair);height:0;margin-block:2em}.singularity-root .cpa-prose .tc-code{margin-block:1.5em}.singularity-root .cpa-prose>:first-child{margin-top:0}.singularity-root .cpa-prose>:last-child{margin-bottom:0}.singularity-root .cpa-stub{border-top:1px solid var(--tc-hair);color:var(--tc-ink-3);padding-top:18px;font-size:13px;line-height:1.62}.singularity-root .cpa-foot{border-top:1px solid var(--tc-hair)}.singularity-root .cpa-foot-nav{grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.singularity-root .cpa-foot-link{min-height:140px;padding:28px var(--tc-gut);border-right:1px solid var(--tc-hair);color:inherit;flex-direction:column;justify-content:space-between;gap:22px;display:flex}.singularity-root .cpa-foot-link.is-next{text-align:right;border-right:0;align-items:flex-end}.singularity-root .cpa-foot-link>span{letter-spacing:.06em;text-transform:uppercase;color:var(--tc-ink-3);align-items:center;gap:8px;font-size:12px;display:inline-flex}.singularity-root .cpa-foot-link svg{width:14px;height:14px}.singularity-root .cpa-foot-link strong{max-width:30ch;font-family:var(--tc-disp);letter-spacing:-.02em;color:var(--tc-ink);font-size:clamp(18px,2vw,24px);font-weight:600;line-height:1.2}.singularity-root .cpa-explore{border-top:1px solid var(--tc-hair);padding:clamp(36px, 4.4vw, 56px) var(--tc-gut)}.singularity-root .cpa-explore-head{font-family:var(--tc-sans);letter-spacing:.14em;text-transform:uppercase;color:var(--tc-ink-3);align-items:center;gap:8px;padding-bottom:26px;font-size:12px;font-weight:600;display:flex}.singularity-root .cpa-explore-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.singularity-root .cpa-card{border:1px solid var(--tc-hair);border-radius:6px;flex-direction:column;min-width:0;transition:border-color .16s;display:flex;overflow:hidden}.singularity-root .cpa-card:hover{border-color:var(--tc-ink-3)}.singularity-root .cpa-card-body{flex-direction:column;flex:1;gap:10px;padding:18px 20px 22px;display:flex}.singularity-root .cpa-card-meta{font-family:var(--tc-mono);letter-spacing:.02em;color:var(--tc-ink-3);gap:14px;font-size:11.5px;display:flex}.singularity-root .cpa-card strong{font-family:var(--tc-disp);letter-spacing:-.02em;color:var(--tc-ink);font-size:18px;font-weight:600;line-height:1.24}.singularity-root .cpa-card-dek{-webkit-line-clamp:2;color:var(--tc-ink-2);-webkit-box-orient:vertical;font-size:13px;line-height:1.55;display:-webkit-box;overflow:hidden}@media (max-width:980px){.singularity-root .cpa-lead{grid-template-columns:minmax(0,1fr);gap:22px}.singularity-root .cpa-header{padding-bottom:14px}.singularity-root .cpa-grid{grid-template-columns:minmax(0,1fr);gap:0;padding-left:0}.singularity-root .cpa-rail{z-index:30;top:var(--cpa-nav);border-block:1px solid var(--tc-hair);background:var(--tc-paper);order:-1;position:sticky}.singularity-root .cpa-rail:empty,.singularity-root .cpa-rail-sticky{display:none}.singularity-root .cpa-toc-pop{display:block}.singularity-root .cpa-prose{padding-inline:var(--tc-gut)}.singularity-root .cpa-prose h2,.singularity-root .cpa-prose h3{scroll-margin-top:calc(var(--cpa-nav) + var(--cpa-bar) + 16px)}}@media (max-width:700px){.singularity-root .cpa-foot-nav{grid-template-columns:minmax(0,1fr)}.singularity-root .cpa-foot-link{border-right:0}.singularity-root .cpa-foot-link.is-next{border-top:1px solid var(--tc-hair)}.singularity-root .cpa-explore-grid{grid-template-columns:minmax(0,1fr)}}[data-theme=dark] .singularity-root .cpa{--cpa-mark:#86a8ff}