:root {
  color-scheme: dark;
  --bg: #080b10;
  --panel: #0f151d;
  --line: #24303d;
  --text: #e6edf6;
  --muted: #8b9bb0;
  --soft: #a8b6c8;
  --amber: #fbbf24;
  --blue: #60a5fa;
  --green: #34d399;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: #93c5fd; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 11px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 11, 16, 0.94);
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
}

.mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, #1d4ed8, #0f766e);
  font-family: Georgia, serif;
  font-size: 18px;
  font-weight: 700;
}

.brand strong { display: block; font-size: 13px; }
.brand small {
  display: block;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.topnav { display: flex; gap: 14px; }
.topnav a {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  text-decoration: none;
}
.topnav a:hover { color: var(--text); }

.layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  max-width: 1280px;
  margin: 0 auto;
}

.sidebar {
  position: sticky;
  top: 53px;
  align-self: start;
  max-height: calc(100vh - 53px);
  overflow-y: auto;
  padding: 22px 16px 60px 20px;
  border-right: 1px solid var(--line);
}

.nav-group { margin-bottom: 20px; }
.nav-title {
  margin-bottom: 6px;
  color: var(--amber);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.nav-link {
  display: block;
  padding: 4px 7px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.45;
  text-decoration: none;
}
.nav-link:hover { color: var(--text); background: #121a24; }
.nav-link.active { color: var(--text); background: #162232; }

.main { padding: 38px 46px 90px; min-width: 0; }

.hero {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 30px;
}
.kicker {
  color: var(--green);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 10px 0 8px;
  font-size: 34px;
  letter-spacing: -0.025em;
}
.hero p { max-width: 680px; color: var(--soft); font-size: 14px; line-height: 1.7; }
.hero-links { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 16px; }
.button {
  display: inline-block;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--soft);
  font-family: var(--mono);
  font-size: 10px;
  text-decoration: none;
}
.button:hover { border-color: #38526d; color: var(--text); }
.button.primary { border-color: #1d4ed8; background: #172554; color: #dbeafe; }

.search {
  width: min(420px, 100%);
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0b1219;
  color: var(--text);
  font: inherit;
  font-size: 12px;
  outline: none;
}
.search:focus { border-color: #3b82f6; }

.doc-group { margin: 26px 0; }
.doc-group h2 {
  margin: 0 0 10px;
  color: #cbd5e1;
  font-size: 15px;
}
.doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 9px;
}
.doc-card {
  display: flex;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--panel);
  color: inherit;
  text-decoration: none;
}
.doc-card:hover { border-color: #36506b; background: #111a24; }
.doc-number {
  color: #334252;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
}
.doc-card strong { display: block; color: var(--text); font-size: 12.5px; line-height: 1.4; }
.doc-card small { display: block; margin-top: 4px; color: var(--muted); font-size: 10.5px; line-height: 1.5; }

.prose { max-width: 820px; color: var(--soft); font-size: 13.5px; line-height: 1.8; }
.prose h1 { margin: 0 0 18px; color: var(--text); font-size: 30px; letter-spacing: -0.02em; }
.prose h2 { margin: 34px 0 10px; padding-bottom: 5px; border-bottom: 1px solid var(--line); color: #dbe5f1; font-size: 19px; }
.prose h3 { margin: 24px 0 8px; color: #cbd5e1; font-size: 15px; }
.prose h4 { margin: 20px 0 6px; color: #cbd5e1; font-size: 13.5px; }
.prose p, .prose li { color: var(--soft); }
.prose li { margin: 3px 0; }
.prose strong { color: var(--text); }
.prose a { text-decoration: none; border-bottom: 1px solid rgba(96, 165, 250, 0.25); }
.prose a:hover { border-bottom-color: var(--blue); }
.prose blockquote {
  margin: 18px 0;
  padding: 10px 14px;
  border-left: 3px solid var(--amber);
  background: rgba(251, 191, 36, 0.05);
  border-radius: 0 8px 8px 0;
  color: #d6c9a8;
}
.prose blockquote p { color: inherit; margin: 0; }
.prose code {
  padding: 1px 4px;
  border-radius: 4px;
  background: #0b1219;
  color: #93c5fd;
  font-family: var(--mono);
  font-size: 11.5px;
}
.prose pre {
  margin: 14px 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #0b1219;
  overflow: auto;
  line-height: 1.6;
}
.prose pre code { padding: 0; background: transparent; color: #b8c7da; font-size: 11.5px; }
.prose table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 12px; }
.prose th, .prose td {
  padding: 7px 9px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.prose th { color: #9fb0c5; font-family: var(--mono); font-size: 9px; letter-spacing: 0.07em; text-transform: uppercase; }
.prose td { color: var(--soft); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }
.prose img { max-width: 100%; }

.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10.5px;
}
.edit { margin-top: 22px; font-family: var(--mono); font-size: 9.5px; }
.edit a { color: var(--muted); border: 0; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    max-height: none;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 16px 20px;
  }
  .nav-group { margin-bottom: 12px; }
  .main { padding: 26px 20px 70px; }
  .hero h1 { font-size: 27px; }
}