:root { --bg: #f5f6f8; --card: #fff; --text: #1d2330; --muted: #5c6577; --line: #dde1e8; --accent: #2a5bd7; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #14171d; --card: #1d222b; --text: #e8ebf1; --muted: #a2aaba; --line: #2e3440; --accent: #7fa4ff; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", sans-serif; line-height: 1.75; }
a { color: var(--accent); }
.head, main, .foot { max-width: 720px; margin: 0 auto; padding: 0 16px; }
.head { padding-top: 20px; }
.logo { margin: 0; font-weight: 800; font-size: 20px; letter-spacing: .02em; }
.logo a { color: var(--text); text-decoration: none; }
h1 { font-size: 22px; line-height: 1.4; margin: 20px 0 8px; }
.lead { color: var(--muted); margin: 0 0 16px; }
.site, .box { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; margin: 0 0 14px; }
.site h2 { margin: 0; font-size: 18px; }
.site h2 a { text-decoration: none; }
.site h2 a:hover { text-decoration: underline; }
.url { margin: 0 0 6px; font-size: 13px; color: var(--muted); word-break: break-all; }
.site p:last-child, .box p:last-child { margin-bottom: 0; }
.box h2 { font-size: 16px; margin: 0 0 8px; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 8px 6px; border-top: 1px solid var(--line); vertical-align: top; word-break: break-all; }
th { width: 9em; color: var(--muted); font-weight: 600; white-space: nowrap; }
.small { font-size: 13px; color: var(--muted); }
.foot { padding-top: 12px; padding-bottom: 32px; font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); margin-top: 24px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 4px 14px; }
.foot a { color: var(--muted); display: inline-block; padding: 8px 0; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
.foot p { margin: 6px 0 0; }
.site ul, .box ul { margin: 8px 0 0; padding-left: 1.3em; }
.site li, .box li { margin: 2px 0; }