/* kbshelf default help-center theme. Colours come from theme.css (generated per
   site: --brand, --brand-ink). Customers override anything in custom.css. */
:root{
  --bg:#ffffff;--bg-soft:#f6f7f9;--card:#ffffff;--ink:#14171c;--ink-2:#3d4450;--muted:#6b7380;
  --line:#e6e8ec;--line-2:#d6d9df;--focus:color-mix(in srgb,var(--brand) 35%,transparent);
  --radius:14px;--shadow:0 1px 2px rgba(16,24,40,.05),0 8px 24px -12px rgba(16,24,40,.12);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0d1014;--bg-soft:#13171c;--card:#151a20;--ink:#e8ecf1;--ink-2:#c3cad3;--muted:#8a94a0;--line:#232a32;--line-2:#2e3742;--shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px -12px rgba(0,0,0,.6)}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--brand-text,var(--brand))}
img{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--bg);padding:8px 12px;border-radius:8px;z-index:9}
.skip:focus{left:8px}

/* header */
.hd{border-bottom:1px solid var(--line);background:var(--bg)}
.hd-in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:650;letter-spacing:-.01em}
.brand picture{display:flex;align-items:center}
.brand-logo{height:30px;width:auto;max-width:180px;object-fit:contain}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--brand);color:var(--brand-ink);display:grid;place-items:center;font-weight:800;font-size:15px}
.brand-name{font-size:16px}
.hd-nav{display:flex;align-items:center;gap:18px;font-size:14px}
.hd-nav a{color:var(--ink-2);text-decoration:none}
.hd-nav a:hover{color:var(--ink)}
.hd-nav .hd-cta{background:var(--brand);color:var(--brand-ink);padding:8px 14px;border-radius:999px;font-weight:600;white-space:nowrap}
.brand{min-width:0}
.brand-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hd-search{padding:14px 24px 16px}
.is-home .hd{border-bottom:0}

/* search */
.search{position:relative;display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line-2);border-radius:12px;padding:0 12px;max-width:560px}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px var(--focus)}
.search svg{width:18px;height:18px;fill:var(--muted);flex:none}
.search input{flex:1;border:0;outline:0;background:transparent;color:var(--ink);font:inherit;padding:11px 0;min-width:0}
.search input::-webkit-search-cancel-button{display:none}
.search kbd{font:12px var(--mono);color:var(--muted);border:1px solid var(--line-2);border-radius:6px;padding:1px 6px}
.search-lg{max-width:640px;margin:0 auto;padding:4px 16px;border-radius:14px;box-shadow:var(--shadow)}
.search-lg input{font-size:17px;padding:14px 0}
.search-pop{position:absolute;left:-1px;right:-1px;top:calc(100% + 6px);background:var(--card);border:1px solid var(--line-2);border-radius:12px;box-shadow:var(--shadow);z-index:20;overflow:hidden;text-align:left}
.search-pop a{display:block;padding:11px 14px;text-decoration:none;color:var(--ink);border-top:1px solid var(--line)}
.search-pop a:first-child{border-top:0}
.search-pop a:hover,.search-pop a.on{background:var(--bg-soft)}
.search-pop b{display:block;font-weight:600;font-size:15px}
.search-pop span{display:block;color:var(--muted);font-size:13px;margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.search-pop .pop-empty{padding:14px;color:var(--muted);font-size:14px}
.search-pop .pop-all{font-size:13px;font-weight:600;color:var(--brand-text,var(--brand))}
mark{background:color-mix(in srgb,var(--brand) 22%,transparent);color:inherit;border-radius:3px;padding:0 1px}

/* hero */
.hero{background:linear-gradient(180deg,color-mix(in srgb,var(--brand) 10%,var(--bg)) 0%,var(--bg) 100%);padding:56px 0 48px;text-align:center;border-bottom:1px solid var(--line)}
.hero h1{margin:0 0 22px;font-size:clamp(28px,4.4vw,42px);line-height:1.15;letter-spacing:-.025em}
.hero-pop{margin:18px 0 0;font-size:14px;color:var(--muted)}
.hero-pop a{color:var(--ink-2)}

/* home categories */
main.wrap{padding-top:32px;padding-bottom:64px;min-height:50vh}
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.cat{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-decoration:none;color:var(--ink);transition:border-color .15s,transform .15s,box-shadow .15s}
.cat:hover{border-color:color-mix(in srgb,var(--brand) 55%,var(--line));box-shadow:var(--shadow);transform:translateY(-1px)}
.cat-ic{width:44px;height:44px;border-radius:12px;background:color-mix(in srgb,var(--brand) 12%,var(--bg-soft));display:grid;place-items:center;font-size:22px;flex:none}
.cat-body{display:flex;flex-direction:column;gap:3px;min-width:0}
.cat-body b{font-size:16px;font-weight:650}
.cat-desc{color:var(--ink-2);font-size:14px;line-height:1.45}
.cat-n{color:var(--muted);font-size:13px}

/* lists */
.list-block{margin-top:40px}
h2{letter-spacing:-.015em}
.alist{list-style:none;margin:0;padding:0;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);overflow:hidden}
.alist li+li{border-top:1px solid var(--line)}
.alist a{display:block;padding:16px 20px;text-decoration:none;color:var(--ink)}
.alist a:hover{background:var(--bg-soft)}
.alist b{display:block;font-weight:600}
.alist span{display:block;color:var(--muted);font-size:14px;margin-top:3px}
.alist-compact a{padding:12px 18px}

/* category / article pages */
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:14px;color:var(--muted);margin-bottom:20px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--ink)}
.page-hd{display:flex;gap:16px;align-items:center;margin-bottom:24px}
.page-hd h1{margin:0;font-size:32px;letter-spacing:-.02em;line-height:1.2}
.page-hd p{margin:4px 0 0;color:var(--ink-2)}
.page-ic{width:56px;height:56px;border-radius:14px;background:color-mix(in srgb,var(--brand) 12%,var(--bg-soft));display:grid;place-items:center;font-size:28px;flex:none}
.others{margin-top:40px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips a{border:1px solid var(--line-2);border-radius:999px;padding:6px 12px;text-decoration:none;color:var(--ink-2);font-size:14px}
.chips a:hover{border-color:var(--brand);color:var(--ink)}

.art-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:56px;align-items:start}
.art-grid.no-toc{grid-template-columns:minmax(0,760px)}
.art h1{font-size:clamp(28px,3.6vw,38px);line-height:1.15;letter-spacing:-.025em;margin:0 0 10px}
.art-meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--muted);font-size:14px;margin:0 0 28px}
.toc{position:sticky;top:24px;font-size:14px;border-left:1px solid var(--line);padding-left:18px}
.toc b{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:10px}
.toc ul{list-style:none;margin:0 0 16px;padding:0}
.toc li{margin:6px 0}
.toc a{color:var(--ink-2);text-decoration:none}
.toc a:hover,.toc a.on{color:var(--brand-text,var(--brand))}
.toc .toc-l3{padding-left:12px}
.toc-md{font-size:13px;color:var(--muted)!important}

/* article body */
.prose{font-size:17px;line-height:1.7;color:var(--ink-2)}
.prose>*:first-child{margin-top:0}
.prose h2,.prose h3,.prose h4{color:var(--ink);line-height:1.3;scroll-margin-top:20px}
.prose h2{font-size:24px;margin:2em 0 .6em}
.prose h3{font-size:19px;margin:1.6em 0 .5em}
.prose p,.prose ul,.prose ol{margin:0 0 1.1em}
.prose li{margin:.3em 0}
.prose li>input[type=checkbox]{margin-right:8px}
.prose strong{color:var(--ink)}
.prose code{font:.88em var(--mono);background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;padding:.1em .35em}
.prose pre{background:#0f141a;color:#e6edf3;border-radius:12px;padding:16px 18px;overflow:auto;font-size:14px;line-height:1.55}
.prose pre code{background:none;border:0;padding:0;color:inherit}
.prose img{border-radius:10px;border:1px solid var(--line);display:block;margin:1.2em 0}
.prose blockquote{margin:1.2em 0;padding:12px 18px;border-left:3px solid var(--line-2);background:var(--bg-soft);border-radius:0 10px 10px 0}
.prose blockquote p:last-child{margin-bottom:0}
.prose .kb-callout{border-left-color:var(--brand)}
.prose .kb-callout::before{display:block;font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;color:var(--ink)}
.prose .kb-callout-note::before{content:"Note"}
.prose .kb-callout-tip::before{content:"Tip";color:#15803d}
.prose .kb-callout-tip{border-left-color:#22c55e;background:color-mix(in srgb,#22c55e 8%,var(--bg))}
.prose .kb-callout-important::before{content:"Important";color:#7c3aed}
.prose .kb-callout-important{border-left-color:#8b5cf6}
.prose .kb-callout-warning::before{content:"Warning";color:#b45309}
.prose .kb-callout-warning{border-left-color:#f59e0b;background:color-mix(in srgb,#f59e0b 9%,var(--bg))}
.prose .kb-callout-caution::before{content:"Caution";color:#b91c1c}
.prose .kb-callout-caution{border-left-color:#ef4444;background:color-mix(in srgb,#ef4444 8%,var(--bg))}
.prose table{border-collapse:collapse;width:100%;margin:1.2em 0;font-size:15px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:8px 12px;text-align:left}
.prose th{background:var(--bg-soft);color:var(--ink)}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.prose kbd{font:.85em var(--mono);border:1px solid var(--line-2);border-bottom-width:2px;border-radius:5px;padding:0 5px}
.prose details{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:1em 0}
.prose summary{cursor:pointer;font-weight:600;color:var(--ink)}

/* feedback */
.fb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:40px 0 0;padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-soft);max-width:760px}
.fb-q{font-weight:600;margin-right:6px}
.fb button{font:inherit;font-size:14px;border:1px solid var(--line-2);background:var(--card);color:var(--ink);border-radius:999px;padding:6px 14px;cursor:pointer}
.fb button:hover{border-color:var(--brand)}
.fb button[aria-pressed=true]{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.fb-thanks{color:var(--muted);font-size:14px}
.fb-contact{font-size:14px}
.related{margin-top:40px;max-width:760px}

/* search page */
.results{list-style:none;padding:0;margin:20px 0 0}
.results li{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);margin-bottom:12px}
.results a{display:block;padding:16px 20px;text-decoration:none;color:var(--ink)}
.results a:hover{border-color:var(--brand)}
.results b{display:block;font-size:17px}
.results p{margin:6px 0 0;color:var(--ink-2);font-size:15px}
.results small{color:var(--muted)}
.search-status{color:var(--muted);font-size:14px;margin:16px 0 0;min-height:1.4em}
.no-results{margin-top:24px}
.empty{text-align:center;padding:48px 0;color:var(--ink-2)}

/* footer */
.ft{border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.ft-in{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-top:22px;padding-bottom:28px}
.ft-links{display:flex;gap:18px}
.ft a{color:var(--muted);text-decoration:none}
.ft a:hover{color:var(--ink)}
.powered b{color:var(--ink-2)}

@media (max-width:900px){
  .art-grid{grid-template-columns:minmax(0,1fr)}
  .toc{display:none}
}
@media (max-width:560px){
  .wrap{padding:0 16px}
  .hd-search{padding:10px 16px 12px}
  .hero{padding:36px 0 32px}
  .cats{grid-template-columns:1fr}
  .hd-nav a:not(.hd-cta){display:none}
  .search kbd{display:none}
  /* small screens: the logo already names the site; keep the header on one line */
  .brand picture + .brand-name{display:none}
  .brand-logo{height:26px;max-width:140px}
  .hd-nav .hd-cta{padding:7px 12px;font-size:13px}
}