:root { color-scheme: light dark; --fg:#16181d; --bg:#fff; --mut:#5b6270; --line:#e3e6ec; --acc:#0b7285; }
@media (prefers-color-scheme: dark) {
  :root { --fg:#e6e8ee; --bg:#14161a; --mut:#9aa1ae; --line:#2a2e36; --acc:#5cc8dd; }
}
* { box-sizing: border-box; }
body {
  margin: 0 auto; padding: 32px 20px 80px; max-width: 46rem;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.9; color: var(--fg); background: var(--bg);
}
h1 { font-size: 1.5rem; line-height: 1.4; margin: 0 0 4px; }
h2 { font-size: 1.05rem; margin: 40px 0 8px; padding-top: 16px; border-top: 1px solid var(--line); }
h3 { font-size: .95rem; margin: 24px 0 4px; color: var(--acc); }
p, li { font-size: .94rem; }
ul { padding-left: 1.25em; }
.meta { color: var(--mut); font-size: .82rem; margin: 0 0 8px; }
.lead { color: var(--mut); font-size: .9rem; }
table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: .88rem; }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: color-mix(in srgb, var(--line) 40%, transparent); font-weight: 700; }
.box, .note { border: 1px solid var(--line); border-left: 3px solid var(--acc); padding: 12px 16px; margin: 20px 0; border-radius: 4px; }
.box strong, .note strong { color: var(--acc); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .86em; background: color-mix(in srgb, var(--line) 50%, transparent); padding: 1px 5px; border-radius: 3px; }
a { color: var(--acc); }
footer { margin-top: 56px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--mut); font-size: .82rem; }
.scroll { overflow-x: auto; }