:root { --border:#111; --text:#111; --muted:#666; --bg:#fff; --chip:#f2f2f2; --sidebar:#f8f8f8; --link:#0f172a; --link-muted:#475569; --surface:#ffffff; }
[data-theme="dark"]{ --border:#2a2a2a; --text:#e5e7eb; --muted:#9ca3af; --bg:#0b0b0b; --chip:#1b1b1b; --sidebar:#0f0f10; --link:#e5e7eb; --link-muted:#a1a1aa; --surface:#111113; }
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,sans-serif;color:var(--text);background:var(--bg)}
h1,h2,h3,header,aside,section,footer{transition:background .2s,color .2s,border-color .2s}
h1{font-size:28px;margin:0 0 12px}
h2{font-size:20px;margin:28px 0 8px}
h3{font-size:16px;margin:20px 0 8px}
p,li{line-height:1.7}
.note{font-size:13px;color:var(--muted)}
.card{border:1px solid var(--border);border-radius:10px;background:#fff;overflow:hidden}
.card-h{padding:12px;border-bottom:1px solid var(--border);background:#f6f6f6;font-weight:700;display:flex;justify-content:space-between;align-items:center}
.card-b{padding:16px}
pre{position:relative;background:#0f0f0f;color:#eee;padding:14px;border-radius:10px;overflow:auto;border:1px solid #222}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,'Liberation Mono','Courier New',monospace}
.copy{position:absolute;top:10px;right:10px;border:1px solid #444;background:#1a1a1a;color:#fff;font-size:12px;border-radius:8px;padding:6px 8px;cursor:pointer}
.grid{display:grid;gap:12px}
.grid-2{grid-template-columns:1fr 1fr}
.list{margin:8px 0 0 18px}
.kbd{display:inline-block;border:1px solid var(--border);padding:2px 6px;border-radius:6px;background:#fafafa}
.pill{display:inline-block;padding:2px 8px;border:1px solid #ccc;border-radius:999px;background:#fafafa;font-size:12px}
a{color:var(--link);text-decoration:underline}
.troubles{border-left:3px solid var(--border);padding-left:12px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{background:var(--chip);border:1px solid #ddd;border-radius:999px;padding:2px 8px;font-size:12px}

/* Layout */
.topbar{position:sticky;top:0;z-index:50;background:var(--surface);border-bottom:1px solid var(--border);height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 16px}
.brand{display:flex;align-items:center;gap:8px;color:inherit;text-decoration:none}
.brand-logo{width:20px;height:20px}
.brand-name{font-weight:700}
.top-actions{display:flex;gap:12px;align-items:center}
.top-link{color:var(--link);text-decoration:none;font-size:14px}
.top-link:hover{text-decoration:underline}
 .search{position:relative}
.search input{height:30px;padding:6px 10px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text);min-width:220px}
.search-results{position:absolute;top:36px;left:0;right:0;background:var(--surface);border:1px solid var(--border);border-radius:10px;max-height:360px;overflow:auto}
.search-results a{display:block;padding:8px 10px;text-decoration:none;color:var(--link)}
.search-results a:hover{background:#ececec}
.theme-toggle{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:8px;height:30px;padding:0 10px;cursor:pointer}

.container{display:grid;grid-template-columns:260px minmax(0,1fr) 260px;gap:0}
.sidebar{border-right:1px solid var(--border);background:var(--sidebar);min-height:calc(100vh - 56px);padding:16px}
.main{padding:24px}
.rightbar{border-left:1px solid var(--border);background:var(--surface);min-height:calc(100vh - 56px);padding:16px;position:sticky;top:56px}
.toc{position:sticky;top:72px}
.toc .toc-title{font-size:12px;color:var(--link-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px}
.toc a{display:block;text-decoration:none;color:var(--link);padding:4px 2px}
.toc a:hover{background:#ececec}

.nav{display:flex;flex-direction:column;gap:18px}
.nav-title{font-size:12px;color:var(--link-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}
.nav-item{display:block;padding:6px 6px;border-radius:8px;color:var(--link);text-decoration:none}
.nav-item:hover{background:#ececec}
.nav-item.active{background:#111;color:#fff}
.nav-sep{height:1px;background:#e5e5e5}

.title-block .lead{color:var(--muted)}
.doc-section{margin-top:28px}
.footer{margin-top:40px;padding-top:16px;border-top:1px solid var(--border);color:var(--muted);font-size:12px}

@media (max-width: 880px){
  .grid-2{grid-template-columns:1fr}
  .container{grid-template-columns:1fr}
  .sidebar{position:sticky;top:56px;min-height:auto}
  .rightbar{display:none}
}

@media (max-width: 1240px){
  .container{grid-template-columns:240px 1fr}
  .rightbar{display:none}
}