:root {
  --page: oklch(0.17 0.02 265); --ink: oklch(0.96 0.01 265);
  --muted: oklch(0.72 0.02 265); --line: oklch(0.34 0.03 265);
  --accent: oklch(0.83 0.16 85);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--page); color: var(--ink); font-family: var(--font); line-height: 1.6; }
.wrap { max-width: 720px; margin: 0 auto; padding: 20px 18px 64px; }
header.bar { display: flex; align-items: center; justify-content: space-between; padding: 4px 0 16px; border-bottom: 1px solid var(--line); margin-bottom: 24px; }
a.brand { font-weight: 800; font-size: 18px; letter-spacing: -0.02em; color: var(--ink); text-decoration: none; }
a.brand span { color: var(--accent); }
a.brand:hover { opacity: 0.85; }
.bar a.home { color: var(--muted); font-size: 13px; text-decoration: none; }
.bar a.home:hover { color: var(--ink); }
h1 { font-size: 24px; letter-spacing: -0.02em; margin: 0 0 4px; }
.updated { color: var(--muted); font-size: 13px; margin: 0 0 24px; }
h2 { font-size: 17px; margin: 28px 0 6px; }
p, li { color: var(--ink); }
a { color: var(--accent); }
ol, ul { padding-left: 22px; }
strong { color: var(--ink); }
footer.foot { margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 14px; }
footer.foot a { color: var(--muted); font-size: 13px; text-decoration: none; }
footer.foot a:hover { color: var(--ink); text-decoration: underline; }
.callout { background: oklch(0.22 0.025 265); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin: 18px 0; }