:root {
  --bg: #fbfcf9;
  --fg: #1c2419;
  --muted: #4d5a49;
  --accent: #2e6b34;
  --line: #d9e0d4;
  --card: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121611;
    --fg: #e4eadf;
    --muted: #aab6a4;
    --accent: #8fd18f;
    --line: #2c3529;
    --card: #1a2018;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 48px; }
header.site { border-bottom: 1px solid var(--line); }
header.site nav { max-width: 760px; margin: 0 auto; padding: 12px 16px; display: flex; flex-wrap: wrap; gap: 16px; }
header.site nav a { font-weight: 600; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 1.3rem; margin: 36px 0 8px; }
h3 { font-size: 1.08rem; margin: 24px 0 6px; }
p, ul, ol, table { margin: 0 0 14px; }
ul, ol { padding-left: 1.3em; }
li { margin: 4px 0; }
a { color: var(--accent); text-underline-offset: 2px; overflow-wrap: anywhere; }
.meta { color: var(--muted); margin-bottom: 24px; }
.note { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 8px; padding: 12px 16px; margin: 16px 0; }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); padding: 8px 8px 8px 0; }
th { color: var(--muted); font-weight: 600; }
footer { max-width: 760px; margin: 0 auto; padding: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.92rem; }
.links { list-style: none; padding: 0; }
.links li { margin: 8px 0; }
.hash { overflow-wrap: anywhere; word-break: break-all; }