:root {
  --bg: #ffffff;
  --fg: #1c1e21;
  --muted: #5b6470;
  --line: #e3e7ec;
  --accent: #2f6f4f;
  --card: #f6f8f9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #13171a;
    --fg: #e6e9ec;
    --muted: #9aa4ae;
    --line: #262d33;
    --accent: #7fc3a1;
    --card: #1a2025;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
  max-width: 880px; margin: 0 auto; padding: 22px 24px;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--fg); font-weight: 600; letter-spacing: .2px; }
.brand:hover { text-decoration: none; }
.brand svg { display: block; }
nav { display: flex; gap: 20px; flex-wrap: wrap; font-size: 15px; }
nav a { color: var(--muted); }
nav a:hover, nav a[aria-current="page"] { color: var(--fg); text-decoration: none; }
main { max-width: 880px; margin: 0 auto; padding: 40px 24px 64px; }
h1 { font-size: 30px; line-height: 1.25; margin: 0 0 12px; letter-spacing: -.3px; }
h2 { font-size: 20px; margin: 36px 0 12px; }
h3 { font-size: 17px; margin: 24px 0 8px; }
p { margin: 0 0 14px; }
.lead { font-size: 17px; color: var(--muted); max-width: 64ch; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 28px 0 0; }
.card {
  display: block; padding: 18px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--card); color: inherit;
}
.card:hover { text-decoration: none; border-color: var(--accent); }
.card strong { display: block; margin-bottom: 4px; }
.card span { color: var(--muted); font-size: 14px; }
ul, ol { padding-left: 22px; }
li { margin: 6px 0; }
code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
}
code { background: var(--card); padding: 2px 5px; border-radius: 4px; }
pre {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 14px 16px; overflow-x: auto; line-height: 1.5;
}
pre code { background: none; padding: 0; }
table { width: 100%; border-collapse: collapse; margin: 16px 0 8px; font-size: 15px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .4px; }
.tag { display: inline-block; padding: 1px 8px; border: 1px solid var(--accent); border-radius: 99px; font-size: 12px; color: var(--accent); }
.meta { color: var(--muted); font-size: 13px; }
footer {
  max-width: 880px; margin: 0 auto; padding: 24px;
  border-top: 1px solid var(--line); color: var(--muted); font-size: 13px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}