/* blog-2talk-jp — self-contained stylesheet, no CDN, no web fonts.
   System font stack includes CJK families so 中文/日本語 render natively. */

:root {
  --bg: #ffffff;
  --ink: #1a1e23;
  --dim: #5b6772;
  --line: #e6e9ee;
  --accent: #c0392b;
  --link: #b5361f;
  --code-bg: #f4f6f8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161a;
    --ink: #e3ebf2;
    --dim: #9aa6b1;
    --line: #262d34;
    --accent: #e2725b;
    --link: #e2725b;
    --code-bg: #1a1f25;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; background: var(--bg); color: var(--ink); }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans CJK TC",
    "Noto Sans CJK JP", "Microsoft JhengHei", "PingFang TC", "PingFang SC",
    "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.75;
  font-size: 17px;
  -webkit-text-size-adjust: 100%;
}

.site-head, main, .site-foot, .topnav {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.site-head { padding-top: 48px; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.site-head h1 { font-size: 28px; margin: 0 0 6px; letter-spacing: .01em; }
.tagline { color: var(--dim); margin: 0 0 10px; font-size: 15px; }
.feed-link { margin: 0; }
.feed-link a, .site-foot a, .topnav a { color: var(--link); }

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

main { padding-top: 24px; padding-bottom: 48px; }

/* index list */
.post-list { list-style: none; margin: 0; padding: 0; }
.post-item { padding: 22px 0; border-bottom: 1px solid var(--line); }
.post-item:last-child { border-bottom: 0; }
.post-link { font-size: 21px; font-weight: 600; }
.post-meta { color: var(--dim); font-size: 13px; margin: 4px 0 8px; }
.post-excerpt { margin: 0; color: var(--ink); }

/* post page */
.topnav { padding-top: 28px; font-size: 14px; }
.post-header { margin: 8px 0 24px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.post-header h1 { font-size: 30px; line-height: 1.35; margin: 0 0 8px; }
.post-body h2 { font-size: 22px; margin: 34px 0 12px; }
.post-body h3 { font-size: 18px; margin: 28px 0 10px; }
.post-body p { margin: 16px 0; }
.post-body ul { margin: 16px 0; padding-left: 1.4em; }
.post-body li { margin: 6px 0; }
.post-body code {
  background: var(--code-bg); border-radius: 4px; padding: 1px 5px;
  font-family: "SFMono-Regular", Menlo, Consolas, monospace; font-size: .9em;
}

.site-foot {
  border-top: 1px solid var(--line);
  padding-top: 20px; padding-bottom: 56px;
  color: var(--dim); font-size: 13px;
}