:root {
  --bg: #fbfaf7;
  --fg: #1c1b19;
  --muted: #6b675f;
  --line: #e3ded3;
  --accent: #9a3412;
  --accent-soft: #f4e7dd;
  --code-bg: #f2efe8;
  --max: 720px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.75 "Charter", "Iowan Old Style", "Songti SC", "Noto Serif CJK SC", Georgia, serif;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 247, .92);
  position: sticky;
  top: 0;
  backdrop-filter: saturate(180%) blur(6px);
}
.site-header .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding-top: 18px;
  padding-bottom: 14px;
  flex-wrap: wrap;
}
.brand {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .2px;
  color: var(--fg);
}
.brand .dot { color: var(--accent); }
nav.main { display: flex; gap: 18px; font-size: 15px; }
nav.main a { color: var(--muted); }
nav.main a.active, nav.main a:hover { color: var(--fg); text-decoration: none; }

/* ---------- hero ---------- */
.hero { padding: 54px 0 30px; border-bottom: 1px solid var(--line); }
.hero h1 {
  font-size: 34px;
  line-height: 1.25;
  margin: 0 0 14px;
  font-weight: 600;
  letter-spacing: -.4px;
}
.hero p { color: var(--muted); margin: 0; max-width: 620px; }
.hero .meta { margin-top: 18px; font-size: 14px; color: var(--muted); }
.hero .meta span + span::before { content: "·"; margin: 0 8px; color: var(--line); }

/* ---------- post list ---------- */
.post-list { padding: 12px 0 40px; }
.post-item { padding: 26px 0; border-bottom: 1px solid var(--line); }
.post-item:last-child { border-bottom: 0; }
.post-item h2 { font-size: 22px; margin: 0 0 6px; line-height: 1.35; font-weight: 600; }
.post-item h2 a { color: var(--fg); }
.post-item h2 a:hover { color: var(--accent); text-decoration: none; }
.post-item .date { font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.post-item p { margin: 10px 0 0; color: #33302b; }
.tags { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  font: 12px/1.6 ui-monospace, "SF Mono", Menlo, monospace;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 3px;
  padding: 1px 7px;
}

/* ---------- article ---------- */
article.post { padding: 44px 0 20px; }
article.post header { margin-bottom: 30px; }
article.post h1 {
  font-size: 31px;
  line-height: 1.3;
  margin: 0 0 10px;
  letter-spacing: -.3px;
  font-weight: 600;
}
article.post .post-meta { color: var(--muted); font-size: 14px; }
article.post h2 { font-size: 22px; margin: 38px 0 12px; font-weight: 600; }
article.post h3 { font-size: 18px; margin: 26px 0 8px; font-weight: 600; }
article.post p { margin: 0 0 16px; }
article.post ul, article.post ol { margin: 0 0 16px; padding-left: 24px; }
article.post li { margin: 6px 0; }
article.post blockquote {
  margin: 22px 0;
  padding: 2px 0 2px 18px;
  border-left: 3px solid var(--accent);
  color: #4a463f;
}
code {
  font: 14px/1.5 ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 3px;
}
pre {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 16px 18px;
  overflow-x: auto;
  margin: 0 0 18px;
}
pre code { background: none; padding: 0; font-size: 13.5px; }
hr { border: 0; border-top: 1px solid var(--line); margin: 34px 0; }
figure { margin: 24px 0; }
figcaption { color: var(--muted); font-size: 13.5px; margin-top: 8px; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding: 26px 0 44px;
  color: var(--muted);
  font-size: 14px;
}
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); text-decoration: underline; text-decoration-color: var(--line); }

@media (max-width: 560px) {
  body { font-size: 16px; }
  .hero { padding: 38px 0 24px; }
  .hero h1 { font-size: 27px; }
  article.post h1 { font-size: 25px; }
  .site-header .wrap { padding-top: 14px; padding-bottom: 12px; }
}