:root {
  --bg: #ffffff;
  --fg: #1f2328;
  --muted: #6b727c;
  --line: #e3e6ea;
  --accent: #0b5fa5;
  --code-bg: #f5f6f8;
  --callout: #fff8e6;
  --callout-line: #e0b84a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --fg: #e6e8ea;
    --muted: #9aa3ad;
    --line: #2a2f35;
    --accent: #79b8ff;
    --code-bg: #1c2126;
    --callout: #2a2415;
    --callout-line: #8a6d24;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;
  line-height: 1.85;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}
.wrap { max-width: 46rem; margin: 0 auto; padding: 0 1.1rem; }

.site-header { border-bottom: 1px solid var(--line); padding: 1rem 0; }
.site-header .wrap { display: flex; flex-wrap: wrap; gap: .6rem 1.2rem; align-items: baseline; }
.site-title { font-weight: 700; font-size: 1.05rem; text-decoration: none; color: var(--fg); }
.site-header nav { display: flex; gap: 1rem; margin-left: auto; }
.site-header nav a { font-size: .9rem; color: var(--muted); text-decoration: none; }
.site-header nav a:hover { color: var(--accent); }

main.wrap { padding-top: 2rem; padding-bottom: 3rem; }

a { color: var(--accent); }
h1 { font-size: 1.6rem; line-height: 1.4; margin: 0 0 .4rem; }
h2 { font-size: 1.25rem; margin: 2.4rem 0 .8rem; padding-bottom: .3rem; border-bottom: 1px solid var(--line); }
h3 { font-size: 1.05rem; margin: 1.8rem 0 .5rem; }
p, ul, ol { margin: .8rem 0; }
li { margin: .25rem 0; }

.intro { color: var(--muted); font-size: .95rem; border-left: 3px solid var(--line); padding-left: 1rem; margin-bottom: 2.5rem; }

.meta { color: var(--muted); font-size: .85rem; margin: .2rem 0 .8rem; display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.tag { display: inline-block; font-size: .78rem; padding: .05rem .5rem; margin-right: .3rem; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; color: var(--muted); }
.tag:hover { border-color: var(--accent); color: var(--accent); }

.post-list { list-style: none; padding: 0; }
.post-list > li { padding: 1.1rem 0; border-bottom: 1px solid var(--line); }
.post-link { font-size: 1.1rem; font-weight: 600; text-decoration: none; }
.excerpt { color: var(--muted); font-size: .92rem; margin: .3rem 0 0; }

.term-list { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .6rem; }
.term-list a { text-decoration: none; border: 1px solid var(--line); border-radius: 999px; padding: .2rem .8rem; }
.count { color: var(--muted); font-size: .8rem; }

blockquote {
  margin: 1.2rem 0; padding: .7rem 1rem;
  background: var(--callout); border-left: 4px solid var(--callout-line);
}
blockquote p { margin: .3rem 0; }

code { background: var(--code-bg); padding: .12rem .35rem; border-radius: 3px; font-size: .88em; }
pre { background: var(--code-bg); padding: .9rem 1rem; border-radius: 6px; overflow-x: auto; }
pre code { background: none; padding: 0; }

/* 横に長い表はページではなく表自身をスクロールさせる */
.table-scroll, table { display: block; overflow-x: auto; max-width: 100%; }
table { border-collapse: collapse; font-size: .9rem; white-space: nowrap; }
th, td { border: 1px solid var(--line); padding: .4rem .7rem; text-align: left; }
th { background: var(--code-bg); }

img { max-width: 100%; height: auto; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

.pager { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--line); font-size: .9rem; }

.site-footer { border-top: 1px solid var(--line); padding: 1.5rem 0 3rem; color: var(--muted); font-size: .82rem; }