:root {
  --bg: #f7f6f2; --fg: #1b1b1b; --muted: #5d5d5d; --line: #dedbd2; --accent: #1f6f5c; --mark: #fff3b0;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #151614; --fg: #ecebe6; --muted: #a8a69f; --line: #34352f; --accent: #5fbfa4; --mark: #5a4b00; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
.brand { font-weight: 700; letter-spacing: .02em; color: var(--accent); margin: 0 0 8px; text-decoration: none; display: inline-block; }
h1 { font-size: 1.8rem; line-height: 1.25; margin: 8px 0 4px; }
h2 { font-size: 1.2rem; margin: 36px 0 8px; padding-top: 12px; border-top: 1px solid var(--line); }
h3 { font-size: 1.02rem; margin: 20px 0 6px; }
p, li { margin: 0 0 10px; }
ul { padding-left: 22px; }
.muted { color: var(--muted); }
.summary { border: 1px solid var(--line); border-radius: 12px; padding: 12px 18px; margin: 20px 0; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; margin: 8px 0 16px; display: block; overflow-x: auto; }
th, td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); padding: 8px 10px 8px 0; }
th { font-weight: 600; }
a { color: var(--accent); }
mark { background: var(--mark); color: inherit; padding: 0 3px; border-radius: 3px; }
footer { margin-top: 48px; font-size: .9rem; color: var(--muted); }