/* Crawlhub Developers: persistent navigation, readable reference, existing brand. */
:root{--paper:#fff;--surface:#f7f9fc;--ink:#1c2632;--muted:#5d6b80;--line:#e0e6ef;--accent:#2143ef;--tint:#edf2ff;--code:#172334;--code-ink:#e5edfa;--font:'DM Sans',sans-serif;--mono:'IBM Plex Mono',monospace;--header:76px}
*{box-sizing:border-box}html{scroll-padding-top:100px}html,body{margin:0;overflow-x:clip}body{font:15px/1.8 var(--font);color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}a{color:var(--accent);text-underline-offset:3px}button,input{font:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}:focus-visible{outline:2px solid var(--accent);outline-offset:3px}[hidden]{display:none!important}
.portal-header{position:sticky;top:0;z-index:30;display:grid;grid-template-columns:280px minmax(200px,470px) 1fr;align-items:center;gap:32px;height:var(--header);padding:0 28px;background:var(--paper);border-bottom:1px solid var(--line)}
.portal-brand{display:flex;align-items:center;gap:16px;color:var(--ink);text-decoration:none;min-width:0}.portal-brand svg{display:block;width:158px;height:28px;flex-shrink:0}.portal-brand>span{font-size:12px;padding-left:16px;border-left:1px solid var(--line);color:var(--muted)}
.search-trigger{display:flex;align-items:center;gap:10px;width:100%;text-align:left;padding:10px 13px;height:40px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--muted);font-size:13px}.search-trigger svg{width:19px;height:19px;flex-shrink:0}.search-trigger kbd{margin-left:auto;font:10px/1.5 var(--mono);padding:2px 6px;border:1px solid var(--line);border-radius:3px;background:var(--paper);white-space:nowrap}.search-trigger:hover{border-color:#b6c6f3}
.portal-top-links{display:flex;align-items:center;justify-content:flex-end;gap:24px;font-size:12px;white-space:nowrap}.portal-top-links a{text-decoration:none;color:var(--muted)}.portal-top-links .portal-button{padding:9px 15px;background:var(--accent);color:#fff;border-radius:5px}
.portal-layout{display:grid;grid-template-columns:245px minmax(0,800px) 200px;gap:48px;max-width:1500px;padding:0 28px;margin:auto;align-items:start}.portal-sidebar{position:sticky;top:var(--header);max-height:calc(100dvh - var(--header));overflow:auto;border-right:1px solid var(--line);padding:28px 20px 32px 0;scrollbar-width:thin}.portal-navigation>summary{display:none}.nav-group{margin-bottom:26px}.nav-group>p{font-size:11px;font-weight:600;letter-spacing:.03em;color:var(--ink);margin:0 0 8px;padding:0 10px}.nav-group a{display:block;color:var(--muted);text-decoration:none;font-size:12px;line-height:1.6;padding:7px 10px;border-radius:5px;margin:2px 0}.nav-group a:hover{background:var(--surface);color:var(--ink)}.nav-group a[aria-current]{color:var(--accent);background:var(--tint);font-weight:500}.sidebar-help{border-top:1px solid var(--line);padding:18px 10px;display:grid;gap:8px}.sidebar-help a{font-size:12px;text-decoration:none;color:var(--muted)}
main{min-width:0;padding-top:40px}.article-topline{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted);margin-bottom:25px}.article-topline p{margin:0}.article-topline button{font-size:11px;border:1px solid var(--line);border-radius:5px;padding:6px 10px;color:var(--muted);background:var(--paper)}.article-heading{margin-bottom:36px}.page-kind{font:10px/1.5 var(--mono);color:var(--accent);display:inline-block;margin-bottom:12px}.pilot-kind{padding:3px 8px;border:1px solid #ead8b7;color:#805620;background:#fff9ee;border-radius:4px}h1{font-size:42px;line-height:1.13;letter-spacing:-.045em;font-weight:550;margin:0;overflow-wrap:anywhere;min-width:0}.lead{font-size:17px;line-height:1.75;color:var(--muted);margin:18px 0 0}.portal-welcome p{font-size:15px;color:var(--muted)}article>section{margin:42px 0 0;scroll-margin-top:105px}article>section:first-child{margin-top:0}h2{font-size:25px;font-weight:550;line-height:1.3;letter-spacing:-.03em;margin:0 0 16px;overflow-wrap:anywhere}h3{font-size:19px;font-weight:550;line-height:1.4;letter-spacing:-.02em}article p{margin:16px 0;color:var(--ink);max-width:75ch}article ul,article ol{padding-left:23px}article li{padding-left:4px;margin:9px 0}article strong{font-weight:600}.note{padding:17px 20px;border:1px solid #dbe4fc;border-radius:7px;background:#f5f8ff;color:#3d4e69;font-size:13px;line-height:1.8;margin:22px 0}.guide-cards{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin-top:22px}.guide-cards a{display:block;border:1px solid var(--line);border-radius:8px;padding:20px;color:var(--ink);text-decoration:none;transition:border-color .15s,background-color .15s}.guide-cards a:hover{border-color:#adbef5;background:#fafbff}.guide-cards strong{display:block;font-size:15px;line-height:1.5;margin-bottom:8px}.guide-cards span{display:block;font-size:12px;line-height:1.75;color:var(--muted)}
.table-scroll{overflow:auto;max-width:100%;margin:20px 0;border:1px solid var(--line);border-radius:7px}table{border-collapse:collapse;width:100%;text-align:left;font-size:12px;line-height:1.8}th,td{padding:13px 16px;vertical-align:top;border-bottom:1px solid var(--line);min-width:130px}th{font-weight:600;background:var(--surface);color:var(--muted)}td:first-child{font-weight:500}tbody tr:last-child td{border-bottom:0}code{font:12px/1.7 var(--mono);padding:2px 5px;background:var(--surface);border:1px solid var(--line);border-radius:4px;overflow-wrap:anywhere}.code-example{border:1px solid #29384c;border-radius:8px;overflow:hidden;background:var(--code);color:var(--code-ink);margin:22px 0}.code-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 16px;border-bottom:1px solid #ffffff20;font:10px/1.5 var(--mono);color:#c1cde0}.code-heading button{border:1px solid #ffffff35;border-radius:4px;background:transparent;color:var(--code-ink);padding:5px 10px;min-height:32px;font:10px/1.5 var(--mono)}pre{margin:0;padding:20px;overflow:auto;tab-size:4}pre code{color:inherit;padding:0;border:0;background:transparent;font-size:11px;line-height:1.85;white-space:pre;overflow-wrap:normal}
.portal-toc{position:sticky;top:112px;padding-top:4px;font-size:12px}.portal-toc nav>p{font-size:11px;font-weight:600;margin:0 0 12px;color:var(--ink)}.portal-toc nav>a{display:block;padding:6px 0 6px 14px;border-left:1px solid var(--line);color:var(--muted);text-decoration:none;font-size:11px;line-height:1.65}.portal-toc a[aria-current]{border-color:var(--accent);color:var(--accent)}.toc-help{border-top:1px solid var(--line);margin-top:26px;padding-top:18px}.toc-help span,.toc-help a{display:block;font-size:11px}.toc-help span{color:var(--muted);margin-bottom:8px}.toc-help a{text-decoration:none}.page-pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:48px}.page-pager a{border:1px solid var(--line);border-radius:7px;padding:16px 18px;text-decoration:none;color:var(--ink)}.page-pager a:last-child{text-align:right}.page-pager span{display:block;font-size:10px;color:var(--muted);margin-bottom:5px}.page-pager strong{font-size:13px;font-weight:500}.page-pager a:hover{border-color:#adbef5}.article-footer{margin-top:30px;padding:22px 0 40px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted)}.article-footer a{color:var(--muted);text-decoration:none}
#search-dialog{border:1px solid var(--line);border-radius:12px;width:min(680px,calc(100vw - 32px));max-height:80dvh;margin:90px auto auto;padding:22px;color:var(--ink);box-shadow:0 20px 70px #10203e26}#search-dialog::backdrop{background:#17233466}.search-dialog-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}.search-dialog-top h2{font-size:17px;margin:0}.search-dialog-top button{border:1px solid var(--line);border-radius:4px;background:white;padding:5px 10px;color:var(--muted);font-size:11px}#portal-search{width:100%;border:1px solid #cbd6ed;border-radius:6px;padding:12px 14px;font-size:14px;color:var(--ink);background:var(--surface)}#search-status{font-size:12px;color:var(--muted);margin:14px 0}#search-results{list-style:none;padding:0;margin:0}#search-results li+li{border-top:1px solid var(--line)}#search-results a{display:block;text-decoration:none;padding:14px 10px;border-radius:5px;color:var(--ink)}#search-results a:hover,#search-results a:focus{background:var(--tint)}#search-results strong{font-size:14px;display:block;font-weight:500}#search-results small{display:block;font:9px/1.6 var(--mono);color:var(--accent);margin-bottom:5px}#search-results span{font-size:12px;line-height:1.7;display:block;color:var(--muted);margin-top:5px}.copy-feedback{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:50;background:var(--ink);color:white;border-radius:6px;padding:10px 16px;font-size:12px;max-width:calc(100vw - 32px)}.skip-link{position:fixed;top:-100px;left:16px;z-index:60;background:white;border:1px solid var(--accent);padding:8px 14px}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}button:active,.portal-button:active{filter:brightness(.95)}
@media(max-width:1250px){.portal-header{grid-template-columns:250px minmax(180px,1fr) auto;gap:24px}.portal-layout{grid-template-columns:225px minmax(0,1fr);gap:36px;max-width:1150px}.portal-toc{display:none}}
@media(max-width:900px){.portal-header{padding:0 20px;gap:18px;grid-template-columns:auto minmax(150px,1fr) auto}.portal-brand>span{display:none}.portal-brand svg{width:150px}.portal-top-links>a:first-child{display:none}.portal-layout{grid-template-columns:205px minmax(0,1fr);gap:28px;padding:0 20px}.search-trigger kbd{display:none}}
@media(max-width:760px){:root{--header:68px}.portal-header{grid-template-columns:1fr auto auto;gap:12px;padding:0 16px}.portal-brand svg{width:145px}.search-trigger{width:38px;height:38px;justify-content:center;padding:0}.search-trigger>span{display:none}.portal-top-links .portal-button{font-size:11px;padding:8px 11px}.portal-layout{display:block;padding:0 20px}.portal-sidebar{position:static;max-height:none;border-right:0;border-bottom:1px solid var(--line);padding:0}.portal-navigation>summary{display:block;cursor:pointer;padding:16px 0;font-size:12px;color:var(--accent)}.portal-navigation[open]>nav{padding:10px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.sidebar-help{padding:14px 10px 20px}.nav-group a{min-height:38px;padding-block:9px}.nav-group>p{font-size:11px}main{padding-top:26px}.article-topline{margin-bottom:22px}.article-heading{margin-bottom:28px}h1{font-size:34px}.lead{font-size:16px}h2{font-size:23px}body{font-size:14px}article>section{margin-top:34px}.article-footer{flex-direction:column;gap:8px}.code-heading button{min-height:38px}.guide-cards a{padding:17px}.page-pager a{padding:14px}#search-dialog{margin-top:82px;padding:18px}}
@media(max-width:440px){.portal-brand svg{width:130px}.portal-header{gap:9px}.portal-layout{padding:0 16px}.guide-cards{grid-template-columns:1fr}.portal-navigation[open]>nav{display:block}.nav-group a{font-size:13px}.page-pager{grid-template-columns:1fr}.page-pager a:last-child{text-align:left}.article-topline{font-size:10px}h1{font-size:31px}pre{padding:16px}th,td{padding:12px}.portal-top-links .portal-button{padding-inline:9px}}
@media(min-width:761px){.portal-navigation:not([open])>nav,.portal-navigation:not([open])>.sidebar-help{display:block}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.guide-cards a{transition:none}}