:root {
  --bg: #f7f3ea;
  --panel: #ffffff;
  --ink: #241a2e;
  --muted: #5d5468;
  --line: #e2d9c8;
  --accent: #c8402c;
  --accent-ink: #ffffff;
  --link: #1f5fa8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #140c1c;
    --panel: #1f1529;
    --ink: #f1ece4;
    --muted: #b6abc2;
    --line: #3a2d47;
    --accent: #e0573f;
    --accent-ink: #ffffff;
    --link: #8dc1ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.8;
  font-size: 16px;
}
a { color: var(--link); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
header.site .wrap { display: flex; align-items: center; gap: 12px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
header.site img { width: 40px; height: 40px; border-radius: 9px; image-rendering: pixelated; }
header.site .name { font-weight: 700; font-size: 18px; color: var(--ink); text-decoration: none; }
header.site nav { margin-left: auto; display: flex; gap: 14px; flex-wrap: wrap; font-size: 14px; }
header.site nav a { color: var(--muted); text-decoration: none; }
header.site nav a:hover, header.site nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; }
main { padding: 24px 0 48px; }
h1 { font-size: 26px; line-height: 1.4; margin: 8px 0 4px; }
h2 { font-size: 19px; margin: 32px 0 8px; padding-bottom: 4px; border-bottom: 2px solid var(--line); }
h3 { font-size: 16px; margin: 20px 0 4px; }
p, ul, ol, table { margin: 8px 0; }
ul, ol { padding-left: 1.4em; }
li { margin: 4px 0; }
.meta { color: var(--muted); font-size: 14px; }
.lead { font-size: 17px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin: 16px 0;
}
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 16px 0; }
.cards a.card { display: block; margin: 0; text-decoration: none; color: var(--ink); }
.cards a.card strong { display: block; font-size: 17px; }
.cards a.card span { color: var(--muted); font-size: 14px; }
.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 10px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  overflow-wrap: anywhere;
}
.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { border: 1px solid var(--line); padding: 8px; text-align: left; vertical-align: top; }
th { background: var(--panel); }
code { overflow-wrap: anywhere; }
footer.site { border-top: 1px solid var(--line); padding: 20px 0 32px; color: var(--muted); font-size: 14px; }
footer.site .wrap { display: flex; gap: 14px; flex-wrap: wrap; }
.hero { display: flex; gap: 16px; align-items: center; margin: 8px 0 16px; }
.hero img { width: 96px; height: 96px; border-radius: 20px; image-rendering: pixelated; flex: none; }
@media (max-width: 480px) {
  h1 { font-size: 22px; }
  .hero img { width: 72px; height: 72px; border-radius: 16px; }
}