/* qaqnuz developer docs — minimal static theme (DAS-1226). No build step, no
   external fonts/CDNs. Light + dark via prefers-color-scheme. */

:root {
  --bg: #ffffff;
  --bg-soft: #f6f8fa;
  --bg-code: #f6f8fa;
  --border: #d8dee4;
  --text: #1f2328;
  --text-muted: #59636e;
  --accent: #0b6bcb;
  --accent-soft: #ddebff;
  --topbar-bg: #0d1117;
  --topbar-text: #e6edf3;
  --sidebar-w: 256px;
  --max-content: 860px;
  --radius: 8px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --bg-soft: #161b22;
    --bg-code: #161b22;
    --border: #30363d;
    --text: #e6edf3;
    --text-muted: #9198a1;
    --accent: #4493f8;
    --accent-soft: #163056;
    --topbar-bg: #010409;
    --topbar-text: #e6edf3;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 8px 14px;
  z-index: 100;
}
.skip-link:focus { left: 8px; top: 8px; }

/* ── Topbar ─────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--topbar-bg);
  color: var(--topbar-text);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.topbar-inner {
  max-width: calc(var(--sidebar-w) + var(--max-content) + 64px);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
}
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; }
.brand-mark {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--topbar-text);
}
.brand-sub { color: #9198a1; font-size: 0.85rem; }
.menu-toggle {
  display: none;
  background: transparent;
  color: var(--topbar-text);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.85rem;
  cursor: pointer;
}

/* ── Shell / layout ─────────────────────────────────────── */
.shell {
  max-width: calc(var(--sidebar-w) + var(--max-content) + 64px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  gap: 32px;
  padding: 0 20px;
}

.sidebar {
  position: sticky;
  top: 57px;
  align-self: start;
  height: calc(100vh - 57px);
  overflow-y: auto;
  padding: 24px 8px 24px 0;
}
.nav { list-style: none; margin: 0; padding: 0; }
.nav li { margin: 1px 0; }
.nav a {
  display: block;
  padding: 7px 12px;
  border-radius: 6px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
}
.nav a:hover { background: var(--bg-soft); color: var(--text); }
.nav li.active a {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

/* ── Content ────────────────────────────────────────────── */
.content { min-width: 0; padding: 32px 0 64px; }
.prose { max-width: var(--max-content); }

.prose h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 0.6em;
  letter-spacing: -0.02em;
}
.prose h2 {
  font-size: 1.45rem;
  margin: 2em 0 0.6em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.01em;
}
.prose h3 { font-size: 1.18rem; margin: 1.6em 0 0.5em; }
.prose h4 { font-size: 1rem; margin: 1.4em 0 0.4em; }
.prose p { margin: 0.8em 0; }
.prose ul, .prose ol { margin: 0.8em 0; padding-left: 1.6em; }
.prose li { margin: 0.3em 0; }
.prose a { color: var(--accent); text-decoration: none; }
.prose a:hover { text-decoration: underline; }
.prose strong { font-weight: 650; }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 2em 0; }

.prose blockquote {
  margin: 1em 0;
  padding: 0.6em 1em;
  border-left: 3px solid var(--accent);
  background: var(--bg-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text-muted);
}

/* anchor links on headings */
.anchor {
  margin-left: 8px;
  color: var(--border);
  text-decoration: none;
  opacity: 0;
  font-weight: 400;
}
h1:hover .anchor, h2:hover .anchor, h3:hover .anchor { opacity: 1; }

/* inline code */
.prose :not(pre) > code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.12em 0.4em;
  word-break: break-word;
}

/* ── Code blocks ────────────────────────────────────────── */
.codeblock {
  margin: 1.1em 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-code);
}
.codeblock-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
}
.codeblock-lang {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-family: var(--mono);
}
.copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 5px;
  padding: 3px 10px;
  font-size: 0.75rem;
  cursor: pointer;
  font-family: var(--sans);
}
.copy-btn:hover { color: var(--text); border-color: var(--accent); }
.copy-btn.copied { color: #1a7f37; border-color: #1a7f37; }

.codeblock pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
}
.codeblock pre code {
  font-family: var(--mono);
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--text);
  background: none;
  border: none;
  padding: 0;
  white-space: pre;
}

/* ── Tables ─────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; margin: 1.1em 0; }
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
}
th, td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
}
thead th { background: var(--bg-soft); font-weight: 650; }
tbody tr:nth-child(even) { background: var(--bg-soft); }

/* ── Footer ─────────────────────────────────────────────── */
.page-footer {
  margin-top: 3em;
  padding-top: 1.5em;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ── Callouts (authored as blockquotes starting with NOTE:/WARNING:) ── */
blockquote strong:first-child { color: var(--text); }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 800px) {
  .shell { grid-template-columns: 1fr; gap: 0; }
  .menu-toggle { display: inline-block; }
  .sidebar {
    position: static;
    height: auto;
    padding: 8px 0 16px;
    border-bottom: 1px solid var(--border);
    display: none;
  }
  .sidebar.open { display: block; }
  .content { padding-top: 20px; }
}