:root {
  --text: #23292f;
  --muted: #5b6570;
  --line: #dde2e8;
  --bg-soft: #f4f6f8;
  --accent: #159786;
  --accent-dark: #0e7466;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  color: var(--text);
  background: #ffffff;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 1.02rem;
  line-height: 1.65;
}
.wrap { max-width: 820px; margin: 0 auto; padding: 0 22px; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-dark); }

/* Top bar — mirrors index.html */
header.top { border-bottom: 1px solid var(--line); }
.top-inner { display: flex; align-items: center; gap: 10px; min-height: 58px; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
.top-inner img { width: 24px; height: 24px; }
.top-inner .name { font-weight: 600; color: var(--text); text-decoration: none; }
.top-links { margin-left: auto; display: flex; gap: 18px; align-items: center; font-size: 0.93rem; flex-wrap: wrap; }
.top-links a { color: var(--muted); text-decoration: none; }
.top-links a:hover { color: var(--text); text-decoration: underline; }

/* Article */
main { padding: 40px 0 8px; }
.crumb { font-size: 0.9rem; color: var(--muted); margin-bottom: 22px; }
.crumb a { color: var(--muted); text-decoration: none; }
.crumb a:hover { color: var(--text); text-decoration: underline; }

.doc h1 { font-size: 1.9rem; line-height: 1.25; letter-spacing: -0.01em; margin: 0 0 18px; }
.doc h2 { font-size: 1.35rem; margin: 34px 0 12px; letter-spacing: -0.01em; }
.doc h3 { font-size: 1.08rem; margin: 26px 0 6px; }
.doc p { margin: 0 0 14px; }
.doc ul, .doc ol { margin: 0 0 14px 24px; }
.doc li { margin-bottom: 6px; }
.doc li > ul, .doc li > ol { margin-top: 6px; margin-bottom: 0; }
.doc strong { font-weight: 650; }

.doc a { color: var(--accent-dark); }
.doc a:hover { text-decoration: none; }

.doc code {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.88em;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 6px;
}
.doc pre {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  margin: 0 0 16px;
}
.doc pre code { background: none; border: 0; padding: 0; font-size: 0.86em; }

.doc kbd {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.82em;
  background: #fff;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 6px;
  box-shadow: 0 1px 0 rgba(0,0,0,0.04);
}

.doc blockquote {
  margin: 0 0 16px;
  padding: 12px 18px;
  border-left: 4px solid var(--accent);
  background: var(--bg-soft);
  border-radius: 0 8px 8px 0;
  color: var(--text);
}
.doc blockquote p:last-child { margin-bottom: 0; }

.doc .table-scroll { overflow-x: auto; margin: 0 0 16px; }
.doc table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
.doc th, .doc td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; vertical-align: top; }
.doc th { background: var(--bg-soft); font-weight: 600; }

.doc hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }

.doc-error { padding: 20px 0; color: var(--muted); }

footer { border-top: 1px solid var(--line); margin-top: 44px; padding: 26px 0 40px; color: var(--muted); font-size: 0.9rem; }
footer p { margin-bottom: 6px; }
footer a { color: var(--accent-dark); }