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1rem;z-index:50}.skip-link:focus{left:1rem}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:30;background:rgba(11,18,32,.92);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}.header-inner{display:flex;align-items:center;gap:1.5rem;min-height:68px;padding:.5rem 0}.wordmark{display:inline-flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--ink);font-family:var(--display);font-size:1.18rem;font-weight:600}.wordmark strong{font-weight:600;color:var(--lichen)}.wordmark-mark{width:24px;height:24px;border-radius:7px;background:linear-gradient(135deg,hsl(var(--nav-theme-light)),var(--moss));box-shadow:inset 0 0 0 2px hsla(0,0%,100%,.35);flex:none}.site-header nav[aria-label="Primary navigation"]{display:flex;gap:1.25rem;margin-left:auto;flex-wrap:wrap}.site-header nav[aria-label="Primary navigation"] a{text-decoration:none;color:var(--ink);font-size:.9rem;font-weight:500}.site-header nav[aria-label="Primary 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section:last-child{padding-bottom:0;margin-bottom:0;border-bottom:0}.article-body h2{max-width:660px;margin-bottom:1.5rem;font:600 clamp(2rem,3.7vw,3rem) /1.08 var(--display)}.article-body>section>p{margin-bottom:1.25rem;line-height:1.82}.article-body ol,.article-body ul,.article-body>section>p{max-width:670px;color:rgba(232,244,255,.82);font-size:1.05rem}.article-body ol,.article-body ul{margin:0 0 1.25rem;padding-left:1.3rem;line-height:1.8}.article-body a{color:var(--lichen);text-decoration:underline}.article-rail{position:-webkit-sticky;position:sticky;top:28px;align-self:start;padding:1.1rem 0;border-top:2px solid var(--moss);border-bottom:1px solid var(--rule)}.article-rail h4{margin:0 0 .9rem;font:600 .95rem/1.2 var(--display)}.article-rail ol{display:grid;grid-gap:.7rem;gap:.7rem;margin:0;padding:0;list-style:none;counter-reset:rail}.article-rail li{counter-increment:rail}.article-rail a{display:grid;grid-template-columns:24px 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