:root {
  --bg: #0b1020;
  --bg-2: #111827;
  --border: #1f2937;
  --text: #e2e8f0;
  --muted: #9ca3af;
  --accent: #2563eb;
  --accent-2: #60a5fa;
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
}
a { color: var(--accent-2); text-decoration: none; }

/* Header */
header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11,16,32,0.95); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  padding: 0 24px;
  height: 64px; display: flex; align-items: center; justify-content: space-between;
}
.logo { font-size: 20px; font-weight: 800; color: #fff; }
.logo span { color: var(--accent-2); }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { color: var(--muted); font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: #fff; }

/* Layout */
.container { max-width: 900px; margin: 0 auto; padding: 40px 24px; }
.page-title { font-size: 34px; margin: 0 0 10px; }
.page-subtitle { color: var(--muted); margin: 0 0 30px; font-size: 15px; }

/* Cards */
.card {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 12px;
  padding: 28px; margin-bottom: 24px;
}
.card h2 { font-size: 22px; margin: 0 0 14px; color: #fff; }
.card h3 { font-size: 18px; margin: 22px 0 10px; color: var(--accent-2); }
.card p { margin: 0 0 12px; color: var(--text); }
.card ul, .card ol { padding-left: 22px; margin: 0 0 12px; }
.card li { margin: 6px 0; }
.card code {
  background: rgba(255,255,255,0.08); padding: 2px 6px; border-radius: 4px;
  font-size: 13px; color: var(--accent-2);
}
.card blockquote {
  border-left: 3px solid var(--accent); margin: 16px 0; padding-left: 16px;
  color: var(--muted); font-style: italic;
}

/* Hub cards */
.hub-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px;
}
.hub-card {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 12px;
  padding: 24px; transition: transform .2s, border-color .2s;
}
.hub-card:hover { transform: translateY(-3px); border-color: rgba(96,165,250,0.4); }
.hub-card h3 { margin: 0 0 10px; font-size: 18px; }
.hub-card p { margin: 0 0 16px; color: var(--muted); font-size: 14px; }
.hub-card .btn {
  display: inline-block; padding: 8px 16px; background: var(--accent);
  color: #fff; border-radius: 6px; font-size: 14px; font-weight: 600;
}
.hub-card .btn:hover { background: #1d4ed8; }

/* Labels */
.tag {
  display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; font-weight: 600;
}
.tag-ok { background: rgba(52,211,153,0.15); color: var(--ok); }
.tag-warn { background: rgba(251,191,36,0.15); color: var(--warn); }
.tag-danger { background: rgba(248,113,113,0.15); color: var(--danger); }
.tag-info { background: rgba(96,165,250,0.15); color: var(--accent-2); }

/* Risk table */
table { width: 100%; border-collapse: collapse; margin-top: 12px; }
th, td { text-align: left; padding: 10px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--muted); font-weight: 600; }

/* Footer nav */
.footer-nav {
  display: flex; justify-content: space-between; margin-top: 30px;
  padding-top: 20px; border-top: 1px solid var(--border);
}
.footer-nav a { font-size: 14px; }

@media (max-width: 760px) {
  .nav-links { gap: 16px; }
  .page-title { font-size: 28px; }
}