:root{
  --brand:#0b3d63; --brand-2:#1a5a8a; --brand-ink:#08304f;
  --accent:#0f9e75; --bg:#f6f8fa; --surface:#ffffff;
  --ink:#1f2933; --ink-2:#52606d; --muted:#7b8794;
  --line:#e1e7ec; --line-2:#cdd9e3;
  --hi-bg:#fcebeb; --hi-tx:#a32d2d; --md-bg:#fbeed9; --md-tx:#8a5310;
  --radius:10px; --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--brand-2);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--brand);color:#fff;
  border-bottom:3px solid var(--brand-ink)}
.hbar{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:18px;
  padding:0 22px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;color:#fff;font-size:17px}
.brand:hover{text-decoration:none}
.brand .dot{width:26px;height:26px;border-radius:7px;background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px}
.nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav a{color:#dce8f2;padding:7px 12px;border-radius:8px;font-size:14.5px}
.nav a:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none}
.nav a.active{background:#fff;color:var(--brand);font-weight:600}

/* layout */
.layout{max-width:var(--maxw);margin:0 auto;padding:30px 22px 60px}
.layout.with-toc{display:grid;grid-template-columns:1fr 250px;gap:40px;align-items:start}
.toc{position:sticky;top:84px}
.toc-inner{border-left:2px solid var(--line-2);padding:2px 0 2px 16px}
.toc-h{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.toc ul{list-style:none;margin:0;padding:0}
.toc ul ul{padding-left:14px}
.toc li{margin:3px 0}
.toc a{color:var(--ink-2);font-size:13.5px;line-height:1.4}
.toc a:hover{color:var(--brand-2)}

/* doc bar */
.docbar{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;
  border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:26px;flex-wrap:wrap}
.eyebrow{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);font-weight:600}
.docbar-title{margin:6px 0 4px;font-size:30px;line-height:1.15;color:var(--brand)}
.docbar-sub{margin:0;color:var(--ink-2);max-width:60ch}

/* prose */
.prose{max-width:74ch}
.layout.with-toc .prose{max-width:none}
.prose h1{font-size:26px;color:var(--brand);margin:0 0 .4em;line-height:1.2}
.prose h1:first-child{display:none}
.prose h2{font-size:21px;color:var(--brand);margin:1.8em 0 .5em;padding-bottom:.25em;border-bottom:1px solid var(--line)}
.prose h3{font-size:17px;color:var(--brand-2);margin:1.5em 0 .4em}
.prose p{margin:.7em 0}
.prose ul,.prose ol{margin:.6em 0 .6em 1.2em;padding:0}
.prose li{margin:.25em 0}
.prose blockquote{margin:1.1em 0;background:#eef3f8;border-left:4px solid var(--brand);
  padding:12px 18px;border-radius:0 8px 8px 0;color:#33485c}
.prose blockquote p{margin:.3em 0}
.prose code{background:#eef0f2;padding:1px 5px;border-radius:5px;font-size:.88em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.prose pre{background:#0f2536;color:#dce8f2;padding:16px;border-radius:10px;overflow:auto;font-size:12.5px;line-height:1.45}
.prose pre code{background:none;color:inherit;padding:0}
.prose table{border-collapse:collapse;width:100%;margin:1.1em 0;font-size:14px;display:block;overflow-x:auto}
.prose th{background:var(--brand);color:#fff;text-align:left;padding:9px 11px;font-weight:600;white-space:nowrap}
.prose td{border:1px solid var(--line-2);padding:8px 11px;vertical-align:top}
.prose tr:nth-child(even) td{background:#f4f8fb}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line-2);
  background:var(--surface);color:var(--brand);padding:9px 16px;border-radius:9px;
  font-size:14.5px;font-weight:600;white-space:nowrap}
.btn:hover{border-color:var(--brand-2);background:#f0f6fb;text-decoration:none}
.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn.primary:hover{background:var(--brand-ink)}

/* home */
.hero{padding:14px 0 6px}
.hero h1{font-size:40px;line-height:1.1;color:var(--brand);margin:.25em 0 .2em}
.lead{font-size:18px;color:var(--ink-2);max-width:64ch;margin:.4em 0 1.2em}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.note{background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:0 8px 8px 0;padding:12px 16px;color:var(--ink-2);font-size:14.5px;max-width:80ch}
.note strong{color:var(--ink)}
section{margin-top:42px}
section h2{font-size:24px;color:var(--brand);margin:0 0 .15em}
.sec-sub{color:var(--muted);margin:0 0 18px;font-size:15px}

.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-top:34px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;display:flex;flex-direction:column}
.kpi-l{font-size:13px;color:var(--muted)}
.kpi-v{font-size:26px;font-weight:700;color:var(--brand);margin-top:4px;line-height:1.1}
.kpi-e{font-size:11px;color:var(--muted);margin-top:3px}

.dcards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.dcard{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px 20px;display:flex;flex-direction:column;color:var(--ink)}
.dcard:hover{border-color:var(--brand-2);box-shadow:0 4px 18px rgba(11,61,99,.08);text-decoration:none;transform:translateY(-2px);transition:.15s}
.dcard-ic{width:40px;height:40px;border-radius:10px;background:#eef3f8;color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:12px}
.dcard-t{font-weight:600;font-size:16px;color:var(--brand)}
.dcard-d{font-size:14px;color:var(--ink-2);margin:6px 0 14px;flex:1}
.dcard-go{font-size:14px;font-weight:600;color:var(--brand-2)}
.dcard-go span{transition:.15s}
.dcard:hover .dcard-go span{margin-left:4px}

.hlist{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface)}
.hrow{display:flex;align-items:center;gap:14px;padding:13px 18px;border-top:1px solid var(--line)}
.hrow:first-child{border-top:0}
.badge{font-size:12px;font-weight:700;padding:3px 10px;border-radius:20px;white-space:nowrap;flex:none}
.b-hi{background:var(--hi-bg);color:var(--hi-tx)}
.b-md{background:var(--md-bg);color:var(--md-tx)}
.hrow span:last-child{font-size:14.5px}

.layers{display:flex;flex-direction:column;gap:8px}
.layer{display:flex;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand);padding:13px 18px;border-radius:0 8px 8px 0}
.layer-n{width:30px;height:30px;border-radius:8px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex:none}
.layer-t{font-weight:600;color:var(--brand)}
.layer-d{font-size:13.5px;color:var(--ink-2)}
.verbs{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.verb{background:#eef3f8;color:var(--brand);font-weight:600;font-size:14px;padding:8px 16px;border-radius:20px}

.roadmap{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.rstep{background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:8px;padding:14px 16px}
.rstep-f{font-size:12px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.05em}
.rstep-t{font-size:15px;color:var(--brand);font-weight:600;margin-top:5px}
.rstep-h{font-size:12.5px;color:var(--muted);margin-top:4px}

/* footer */
.site-footer{background:var(--brand);color:#cddceb;margin-top:60px}
.fbar{max-width:var(--maxw);margin:0 auto;padding:30px 22px;font-size:13.5px}
.fbar a{color:#fff}
.fbar .disc{color:#9fb8cd;margin-top:10px;max-width:90ch}

@media (max-width:820px){
  .layout.with-toc{grid-template-columns:1fr}
  .toc{display:none}
  .hero h1{font-size:32px}
  .nav{width:100%;margin-left:0}
}