:root{
  --ink:#0f1520;--paper:#ffffff;--bg:#f9fafb;--muted:#5a6472;--dim:#8a95a6;
  --border:#e5ebf1;--accent:#c8102e;--navy:#0f1b2d;--code:#f6f8fb;
  --font:-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",sans-serif;
  --serif:Georgia,"Times New Roman",serif;
  --mono:"SF Mono","Fira Code","Courier New",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--ink);font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none;border-bottom:1px solid rgba(200,16,46,.3)}
a:hover{border-bottom-color:var(--accent)}
code{font-family:var(--mono);font-size:13px;background:var(--code);padding:2px 6px;border-radius:3px}
pre{background:var(--navy);color:#e6e8ef;padding:20px;border-radius:6px;overflow-x:auto;font-size:13px;line-height:1.6;margin:18px 0}
pre code{background:none;padding:0;color:inherit}

/* Layout */
.docs-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.docs-side{background:var(--navy);color:#e6e8ef;padding:28px 22px;position:sticky;top:0;height:100vh;overflow-y:auto}
.docs-side .brand{font-family:var(--serif);font-size:19px;color:#fff;display:block;margin-bottom:4px;border:none}
.docs-side .brand-tag{font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:#8a95a6;font-weight:600;display:block;margin-bottom:28px}
.docs-nav-section{margin-bottom:22px}
.docs-nav-section h4{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:#6b7683;font-weight:700;margin-bottom:10px}
.docs-nav-section a{display:block;color:#c8cdd6;font-size:13.5px;padding:6px 0;border:none;line-height:1.4;transition:color .15s}
.docs-nav-section a:hover{color:#fff}
.docs-nav-section a.active{color:#fff;font-weight:600}

.docs-main{padding:48px 56px 80px;max-width:820px}
.docs-main h1{font-family:var(--serif);font-size:38px;font-weight:400;letter-spacing:-.02em;line-height:1.15;margin-bottom:12px;color:var(--ink)}
.docs-main h2{font-family:var(--serif);font-size:26px;font-weight:400;letter-spacing:-.01em;margin:44px 0 12px 0;padding-top:20px;border-top:1px solid var(--border)}
.docs-main h2:first-of-type{border-top:none;padding-top:0;margin-top:28px}
.docs-main h3{font-size:17px;font-weight:700;margin:28px 0 8px 0;color:var(--ink)}
.docs-main h4{font-size:15px;font-weight:700;margin:20px 0 6px 0}
.docs-main p{margin:0 0 14px 0;color:var(--muted)}
.docs-main ul,.docs-main ol{margin:0 0 16px 20px;color:var(--muted)}
.docs-main li{margin-bottom:6px}
.docs-main .lede{font-size:17px;color:var(--muted);margin-bottom:32px;line-height:1.6}

/* Tables */
.docs-main table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.docs-main th{text-align:left;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);font-weight:700;padding:10px 12px 8px 0;border-bottom:1px solid var(--border)}
.docs-main td{padding:11px 12px 11px 0;border-bottom:1px solid var(--border);color:var(--muted);vertical-align:top}
.docs-main td:first-child{color:var(--ink);font-weight:500}

/* Callouts */
.callout{padding:16px 20px;border-left:3px solid var(--dim);background:var(--code);border-radius:4px;margin:20px 0;font-size:14px;line-height:1.6;color:var(--muted)}
.callout.warn{border-left-color:var(--accent);background:rgba(200,16,46,.04);color:var(--ink)}
.callout.ok{border-left-color:#12c95c;background:rgba(18,201,92,.05)}
.callout strong{color:var(--ink)}

/* Step numbers */
.step-num{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:var(--navy);color:#fff;font-size:12px;font-weight:700;margin-right:10px;flex-shrink:0}

/* Breadcrumb */
.crumb{font-size:12px;color:var(--dim);margin-bottom:14px;letter-spacing:.02em}
.crumb a{color:var(--dim);border:none}

/* Footer */
.docs-foot{margin-top:64px;padding-top:24px;border-top:1px solid var(--border);font-size:12.5px;color:var(--dim);line-height:1.7}
.docs-foot a{color:var(--dim);border-bottom:1px solid rgba(138,149,166,.3)}

/* Responsive */
@media (max-width:900px){
  .docs-shell{grid-template-columns:1fr}
  .docs-side{position:relative;height:auto;padding:20px}
  .docs-main{padding:32px 24px 60px}
  .docs-main h1{font-size:28px}
  .docs-main h2{font-size:22px}
}