.pg{padding-top:88px}.pg-hero{padding-block:clamp(56px,8vw,96px) clamp(40px,5vw,56px)}.pg-hero h1{max-width:18ch;font-size:var(--s-page-title);letter-spacing:-.04em;line-height:1.04}.pg-hero p{max-width:52ch;font-size:var(--s-lede);color:var(--ink-2);margin-top:20px;line-height:1.55}.pg-rule{background:var(--line);height:1px;position:relative;overflow:hidden}.pg-rule:after{content:"";background:linear-gradient(90deg,transparent,var(--blue-500),transparent);width:220px;height:1px;animation:9s cubic-bezier(.45,0,.55,1) infinite pg-read;position:absolute;top:0;left:0;transform:translate(-220px)}@keyframes pg-read{0%{transform:translate(-220px)}62%,to{transform:translate(100vw)}}@media (prefers-reduced-motion:reduce){.pg-rule:after{animation:none;transform:translate(18vw)}}.pg-body{padding-block:clamp(48px,6vw,80px) clamp(72px,9vw,120px)}.pg-h2{font-size:var(--s-page-h2);letter-spacing:-.03em;font-weight:570;line-height:1.12}.pg-note{font-size:var(--s-14);color:var(--ink-3);margin-top:14px;line-height:1.55}.pg-n{font:500 var(--s-12)/1 var(--mono);letter-spacing:0;color:var(--blue-600)}:root[data-theme=dark] .pg-n{color:var(--blue-400)}.vy{grid-template-columns:220px minmax(0,1fr);gap:clamp(32px,6vw,88px);display:grid}.vy-toc{align-self:start;gap:2px;margin:0;padding:0;list-style:none;display:grid;position:sticky;top:112px}.vy-toc a{border-radius:var(--r-2);min-height:40px;font-size:var(--s-14-5);color:var(--ink-2);align-items:center;gap:12px;padding:0 10px;transition:background-color .2s,color .2s;display:flex}.vy-toc a:hover,.vy-toc a[aria-current]{background:var(--raised);color:var(--ink)}.vy-sec{padding-bottom:clamp(48px,6vw,72px);scroll-margin-top:112px}.vy-sec+.vy-sec{border-top:1px solid var(--line);padding-top:clamp(40px,5vw,56px)}.vy-sec>header{align-items:baseline;gap:14px;display:flex}.vy-sec>p{max-width:62ch;font-size:var(--s-16-5);color:var(--ink-2);margin-top:14px;line-height:1.65}.vy-ledger{border-collapse:collapse;width:100%;font-size:var(--s-14-5);margin-top:28px}.vy-ledger th,.vy-ledger td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:14px 12px 14px 0}.vy-ledger thead th{font-size:var(--s-12-5);color:var(--ink-3);border-bottom-color:var(--line-2);font-weight:600}.vy-ledger tbody th{width:28%;color:var(--ink);font-weight:570}.vy-ledger td{color:var(--ink-2);line-height:1.5}.vy-pair{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:28px;display:grid}.vy-card{border:1px solid var(--line);border-radius:var(--r-4);background:var(--surface);padding:22px 24px}.vy-card h3{font-size:var(--s-17);letter-spacing:-.01em;align-items:center;gap:10px;font-weight:600;display:flex}.vy-card ul{gap:10px;margin:14px 0 0;padding:0;list-style:none;display:grid}.vy-card li{font-size:var(--s-15);color:var(--ink-2);padding-left:18px;line-height:1.55;position:relative}.vy-card li:before{content:"";background:var(--blue-500);border-radius:1px;width:6px;height:6px;position:absolute;top:.62em;left:0}.vy-card.is-not li:before{border:1px solid var(--ink-3);background:0 0}.vy-rules{counter-reset:r;gap:0;margin-top:24px;padding:0;list-style:none;display:grid}.vy-rules li{border-bottom:1px solid var(--line);font-size:var(--s-15-5);color:var(--ink-2);grid-template-columns:44px minmax(0,1fr);gap:8px;padding:16px 0;line-height:1.55;display:grid}.vy-rules li b{color:var(--ink);font-weight:600}.vy-rules li:before{counter-increment:r;content:counter(r,decimal-leading-zero);font:500 var(--s-12)/1.9 var(--mono);color:var(--blue-600)}:root[data-theme=dark] .vy-rules li:before{color:var(--blue-400)}.sq{grid-template-columns:220px minmax(0,1fr);gap:clamp(32px,6vw,88px);display:grid}.sq-group{scroll-margin-top:112px}.sq-group+.sq-group{margin-top:clamp(40px,5vw,56px)}.sq-group>h2{border-bottom:1px solid var(--line-2);font-size:var(--s-20);letter-spacing:-.02em;align-items:baseline;gap:14px;padding-bottom:14px;font-weight:600;display:flex}.sq-item{border-bottom:1px solid var(--line)}.sq-item summary{cursor:pointer;min-height:60px;font-size:var(--s-16-5);color:var(--ink);justify-content:space-between;align-items:center;gap:16px;padding:14px 0;font-weight:540;list-style:none;display:flex}.sq-item summary::-webkit-details-marker{display:none}.sq-item summary i{border:1px solid var(--line-2);border-radius:var(--r-2);width:28px;height:28px;color:var(--ink-2);transition:transform .25s var(--ease-out);flex:none;place-items:center;display:grid}.sq-item summary i svg{stroke:currentColor;fill:none;stroke-width:2px;stroke-linecap:round;width:14px;height:14px}.sq-item[open] summary i{transform:rotate(45deg)}.sq-item p{max-width:66ch;font-size:var(--s-15-5);color:var(--ink-2);padding:0 0 20px;line-height:1.65}.sq-item p+p{margin-top:-8px}.pg-cta{border:1px solid var(--line);border-radius:var(--r-4);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:clamp(56px,7vw,88px);padding:22px 24px;display:flex}.pg-cta p{font-size:var(--s-16);color:var(--ink)}.pg-cta p span{color:var(--ink-2)}.pg-cta div{flex-wrap:wrap;gap:10px;display:flex}@media (max-width:860px){.vy-pair{grid-template-columns:1fr}.vy,.sq{grid-template-columns:minmax(0,1fr)}.vy-toc{margin-inline:calc(var(--gutter) * -1);padding:0 var(--gutter) 4px;scrollbar-width:none;grid-auto-columns:max-content;grid-auto-flow:column;position:static;overflow-x:auto}.vy-toc::-webkit-scrollbar{display:none}.vy-ledger thead{display:none}.vy-ledger tr{border-bottom:1px solid var(--line);gap:4px;padding:14px 0;display:grid}.vy-ledger th,.vy-ledger td{border:0;width:auto;padding:0}}