:root {
  --fg: #1a1a1a;
  --muted: #5a5a5a;
  --bg: #ffffff;
  --line: #e2e2e2;
  --accent: #12507a;
  --accent-fg: #ffffff;
  --codebg: #f6f7f8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e8e8e8; --muted: #a8a8a8; --bg: #16181a; --line: #33373b;
    --accent: #7fb8e0; --accent-fg: #0d1117; --codebg: #1d2023;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0 auto;
  padding: 2.5rem 1.25rem 5rem;
  max-width: 46rem;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
        "Hiragino Sans", "Noto Sans JP", sans-serif;
}
h1 { font-size: 1.6rem; line-height: 1.3; margin: 0 0 .25rem; }
h2 { font-size: 1.15rem; margin: 2.5rem 0 .75rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
h2:first-of-type { border-top: 0; padding-top: 0; }
h3 { font-size: 1rem; margin: 1.75rem 0 .5rem; }
.updated { color: var(--muted); font-size: .9rem; margin: 0 0 2rem; }
a { color: var(--accent); }
code { font-size: .875em; background: rgba(128,128,128,.14); padding: .1em .35em; border-radius: 3px; }
pre {
  background: var(--codebg); border: 1px solid var(--line); border-radius: 6px;
  padding: .9rem 1rem; overflow-x: auto; font-size: .85rem; line-height: 1.55;
}
pre code { background: none; padding: 0; font-size: inherit; }
table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .9rem; }
th, td { text-align: left; vertical-align: top; padding: .6rem .5rem; border-bottom: 1px solid var(--line); }
th { font-weight: 600; }
.scroll { overflow-x: auto; }
.lead { background: rgba(128,128,128,.08); border-left: 3px solid var(--accent); padding: 1rem 1.1rem; margin: 1.5rem 0; }
.lead p:first-child { margin-top: 0; }
.lead p:last-child { margin-bottom: 0; }
.note { border: 1px solid var(--line); border-radius: 6px; padding: .85rem 1rem; margin: 1.5rem 0; font-size: .93rem; }
.note p:first-child { margin-top: 0; }
.note p:last-child { margin-bottom: 0; }
ul, ol { padding-left: 1.25rem; }
.cta { margin: 1.75rem 0; }
.cta a.btn {
  display: inline-block; background: var(--accent); color: var(--accent-fg);
  padding: .6rem 1.15rem; border-radius: 6px; text-decoration: none; font-weight: 600;
}
.cta .sub { display: block; color: var(--muted); font-size: .85rem; margin-top: .5rem; }
.price { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1.25rem 0; }
.price div { flex: 1 1 11rem; border: 1px solid var(--line); border-radius: 6px; padding: .9rem 1rem; }
.price strong { display: block; font-size: 1.1rem; }
.price span { color: var(--muted); font-size: .85rem; }
nav.crumb { font-size: .85rem; color: var(--muted); margin-bottom: 1.25rem; }
footer { margin-top: 4rem; padding-top: 1.25rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
footer a { margin-right: 1rem; }
footer span { display: block; margin-top: .75rem; }