:root{
  --bg:#ffffff; --fg:#1f2328; --muted:#656d76; --line:#d0d7de;
  --sidebar:#f6f8fa; --accent:#0969da; --accent-soft:#ddf4ff;
  --code-bg:#f6f8fa; --code-fg:#1f2328; --radius:8px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0d1117; --fg:#e6edf3; --muted:#8b949e; --line:#30363d;
    --sidebar:#0d1117; --accent:#4493f8; --accent-soft:#12283f;
    --code-bg:#161b22; --code-fg:#e6edf3;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--fg);
  font-family:var(--sans); font-size:16px; line-height:1.65;
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
code,pre{font-family:var(--mono)}
.topbar{
  display:flex; align-items:center; gap:16px;
  padding:12px 20px; border-bottom:1px solid var(--line);
  position:sticky; top:0; background:var(--bg); z-index:20;
}
.brand{display:flex; align-items:center; gap:10px; font-weight:700; font-size:17px; color:var(--fg)}
.brand:hover{text-decoration:none}
.brand svg{display:block}
.badge{
  font-size:12px; color:var(--muted); border:1px solid var(--line);
  padding:2px 8px; border-radius:20px; font-weight:600;
}
.topbar .spacer{flex:1}
.topbar .links{display:flex; gap:18px; font-size:14px; font-weight:600}
.menu-btn{display:none; background:none; border:1px solid var(--line); border-radius:6px; padding:6px 10px; color:var(--fg); cursor:pointer}
.layout{display:grid; grid-template-columns:240px 1fr; max-width:1160px; margin:0 auto}
.sidebar{
  border-right:1px solid var(--line); padding:24px 16px; background:var(--sidebar);
  position:sticky; top:57px; align-self:start; height:calc(100vh - 57px); overflow:auto;
}
.sidebar h4{font-size:12px; text-transform:uppercase; letter-spacing:.04em; color:var(--muted); margin:18px 0 8px}
.sidebar h4:first-child{margin-top:0}
.sidebar a{display:block; padding:6px 10px; border-radius:6px; color:var(--fg); font-size:14.5px}
.sidebar a:hover{background:var(--accent-soft); text-decoration:none}
.sidebar a.active{background:var(--accent-soft); color:var(--accent); font-weight:600}
.content{padding:36px 40px; min-width:0; max-width:820px}
.content h1{font-size:32px; margin:0 0 8px; line-height:1.2}
.content h2{font-size:22px; margin:34px 0 12px; padding-bottom:6px; border-bottom:1px solid var(--line)}
.content h3{font-size:17px; margin:24px 0 8px}
.lead{font-size:18px; color:var(--muted); margin:0 0 24px}
.content p,.content li{color:var(--fg)}
.content ul{padding-left:22px}
pre{
  background:var(--code-bg); color:var(--code-fg); padding:14px 16px;
  border-radius:var(--radius); overflow:auto; font-size:13.5px; line-height:1.5;
  border:1px solid var(--line); position:relative;
}
:not(pre)>code{
  background:var(--code-bg); padding:.15em .4em; border-radius:5px; font-size:.88em;
  border:1px solid var(--line);
}
.copy-btn{
  position:absolute; top:8px; right:8px; font-size:11px; font-weight:600;
  background:var(--bg); color:var(--muted); border:1px solid var(--line);
  border-radius:5px; padding:3px 8px; cursor:pointer; opacity:0; transition:opacity .15s;
}
pre:hover .copy-btn{opacity:1}
.copy-btn.done{color:#1a7f37; border-color:#1a7f37}
.hero{display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin:6px 0 20px}
.pill{font-size:12px; font-weight:600; color:var(--muted); border:1px solid var(--line); border-radius:20px; padding:3px 10px}
.cta{display:inline-block; background:var(--accent); color:#fff; font-weight:600; padding:10px 18px; border-radius:8px; margin:8px 8px 0 0}
.cta.secondary{background:transparent; color:var(--accent); border:1px solid var(--accent)}
.cta:hover{text-decoration:none; opacity:.92}
.note{background:var(--accent-soft); border:1px solid var(--line); border-radius:8px; padding:12px 16px; margin:18px 0; font-size:14.5px}
table{border-collapse:collapse; width:100%; margin:16px 0; font-size:14.5px}
th,td{border:1px solid var(--line); padding:9px 12px; text-align:left; vertical-align:top}
th{background:var(--sidebar); font-weight:600}
.api-item{border:1px solid var(--line); border-radius:8px; padding:4px 18px 14px; margin:16px 0}
.api-item h3{font-family:var(--mono); font-size:15px}
footer{border-top:1px solid var(--line); padding:22px 20px; color:var(--muted); font-size:13px; text-align:center}
.footgrid{max-width:1160px; margin:0 auto}
@media (max-width:820px){
  .layout{grid-template-columns:1fr}
  .sidebar{position:fixed; top:57px; left:0; right:0; height:auto; max-height:70vh; display:none; z-index:15; border-bottom:1px solid var(--line)}
  .sidebar.open{display:block}
  .menu-btn{display:inline-block}
  .topbar .links{display:none}
  .content{padding:24px 18px}
  .content h1{font-size:26px}
}