:root { --bg: #fffbf0; --fg: #2b2416; --muted: #6e6250; --accent: #8a6400; --rule: #efe3c2; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #1c1810; --fg: #f3ecdb; --muted: #b5a88c; --accent: #ffc21a; --rule: #3a3220; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Segoe UI", Roboto, "Noto Sans JP", sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
nav { font-size: 14px; color: var(--muted); padding-bottom: 16px; border-bottom: 1px solid var(--rule); }
nav a[aria-current] { color: var(--fg); font-weight: 600; text-decoration: none; }
nav .lang { float: right; }
h1 { font-size: 30px; line-height: 1.25; margin: 28px 0 8px; }
h2 { font-size: 19px; margin: 32px 0 8px; }
h3 { font-size: 16px; margin: 20px 0 4px; }
.meta { color: var(--muted); font-size: 14px; margin-top: 0; }
a { color: var(--accent); overflow-wrap: anywhere; }
ul { padding-left: 22px; }
li { margin: 6px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 10px 8px; border-bottom: 1px solid var(--rule); }
th { width: 34%; font-weight: 600; }