:root,:root[data-theme=dark]{--bg: #0b0d12;--card: #141824;--tx: #e8ecf5;--mut: #a1a8b6;--line: #222a3b;--on: #ffd23f;--on-tx: #111111;--acc: #ffd23f;--acc-line: #4a3f10;--logo: none}:root[data-theme=light]{--bg: #fafafa;--card: #ffffff;--tx: #15171c;--mut: #565d6b;--line: #e2e4e9;--on: #15171c;--on-tx: #fafafa;--acc: #15171c;--acc-line: #c9ccd3;--logo: brightness(0)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--tx);font-family:IBM Plex Sans,system-ui,sans-serif;font-size:17px;line-height:1.65;min-height:100vh}a{color:inherit}a:hover{opacity:.75}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--acc);outline-offset:3px}.wrap{max-width:760px;margin:0 auto;padding:0 24px}.lab-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:28px 0;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none}.brand img{width:32px;height:32px;object-fit:contain;filter:var(--logo)}.brand span{font-weight:700;font-size:20px;letter-spacing:-.3px}.lab-header nav{display:flex;flex-wrap:wrap;align-items:center;gap:20px;font-size:15px}.lab-header nav a{text-decoration:none;color:var(--mut)}.lab-header nav a[aria-current=page]{color:var(--tx)}button{font:inherit;cursor:pointer}.theme-btn{font-size:14px;color:var(--tx);background:transparent;border:1px solid var(--line);border-radius:999px;padding:8px 14px;min-height:40px}.lab-section{padding:48px 0;display:flex;flex-direction:column;gap:24px}.lab-section.first{padding:72px 0 40px;gap:20px}.lab-section.tight{padding-top:8px}.lab-wrap h1{font-weight:600;font-size:clamp(34px,5vw,44px);letter-spacing:-1.2px;line-height:1.1;margin:0}.lab-wrap h2{margin:0;font-size:26px;font-weight:700;letter-spacing:-.4px}.lab-wrap 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a,.pager .off,.pager .cur{display:inline;min-width:0;min-height:0;padding:0;border:0;border-radius:0;background:none;font-weight:400;color:inherit}.pager a:hover{color:var(--tx);opacity:1}.pager .off{opacity:.35}.pager .count{font-family:IBM Plex Mono,ui-monospace,monospace;font-size:13px;opacity:.8}.card{border:1px solid var(--line);background:var(--card);border-radius:14px;padding:20px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border:0;border-radius:999px;background:var(--on);color:var(--on-tx);font-weight:600;text-decoration:none}.btn.ghost{background:transparent;color:var(--tx);border:1px solid var(--line)}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:14px;color:var(--mut)}.input{width:100%;padding:12px 14px;background:var(--card);color:var(--tx);border:1px solid var(--line);border-radius:10px;font:inherit}textarea.input{min-height:140px;resize:vertical}.prose{font-size:18px;line-height:1.75;overflow-wrap:anywhere}.lab-wrap .prose p{margin:1em 0}.prose h2{margin:2.2em 0 .5em;font-size:26px;line-height:1.25}.prose h3{margin:1.8em 0 .4em;font-size:21px;line-height:1.3;font-weight:700}.prose h4{margin:1.5em 0 .3em;font-size:18px;font-weight:700}.prose a{color:var(--acc);text-decoration:underline;text-underline-offset:3px}.prose ul,.prose ol{padding-left:1.4em;margin:1em 0}.prose li{margin:.35em 0}.prose blockquote{margin:1.4em 0;padding:.2em 0 .2em 1.1em;border-left:3px solid var(--line);color:var(--mut)}.prose code{font-family:IBM Plex Mono,ui-monospace,monospace;font-size:.88em;background:var(--card);border:1px solid var(--line);border-radius:6px;padding:1px 6px}.prose pre{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 16px;line-height:1.5}.prose pre 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var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font-size:14px;color:var(--mut)}.lab-footer .legal{max-width:520px;display:flex;flex-direction:column;gap:10px}.lab-footer .legal nav{display:flex;flex-wrap:wrap;gap:6px 16px}.lab-footer .foot-left{display:flex;flex-direction:column;gap:8px;align-items:flex-start}.lab-footer .brand img{width:24px;height:24px}.lab-footer .brand span{font-size:16px;color:var(--tx)}.lab-footer .icons{margin-left:-10px}@media(max-width:520px){.lab-section.first{padding:48px 0 32px}.prose{font-size:17px}}