:root {
  --bg: #ffffff;
  --ink: #111318;
  --muted: #5d6370;
  --line: #e3e6eb;
  --accent: #4f7a00;
  --accent-soft: #eef7d9;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0b0e;
    --ink: #f4f5f7;
    --muted: #9aa0ab;
    --line: #23262e;
    --accent: #d6ff3b;
    --accent-soft: #1b2408;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
header, main, footer { max-width: 720px; margin: 0 auto; padding: 0 16px; }
header { padding-top: 28px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; font-size: 13px; color: var(--muted); }
.brand a { color: inherit; text-decoration: none; }
nav { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 15px; }
nav a { color: var(--accent); text-decoration: none; }
nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 4px; }
main { padding-top: 24px; padding-bottom: 48px; }
h1 { font-size: 32px; line-height: 1.15; margin: 0 0 6px; letter-spacing: -0.01em; }
h2 { font-size: 20px; margin: 32px 0 8px; }
h3 { font-size: 17px; margin: 20px 0 4px; }
p, li { max-width: 68ch; }
.meta { color: var(--muted); font-size: 15px; margin-bottom: 20px; }
.note { background: var(--accent-soft); border-left: 4px solid var(--accent); padding: 12px 14px; border-radius: 6px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px 8px 0; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92em; }
footer { padding: 18px 16px 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
a { color: var(--accent); }
ul.cards { list-style: none; padding: 0; margin: 20px 0; display: grid; gap: 12px; }
ul.cards li { border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
ul.cards a { font-weight: 600; text-decoration: none; }
ul.cards p { margin: 4px 0 0; color: var(--muted); font-size: 15px; }