:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1d24;
  --muted: #5b6472;
  --accent: #0b5fff;
  --border: #e6e9ef;
  --card: #f7f9fc;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --fg: #e7ebf2;
    --muted: #9aa4b2;
    --accent: #5b8bff;
    --border: #232a35;
    --card: #151a22;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.65;
  font-size: 17px;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 48px 22px 72px; }
header.site { display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.brand { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.02em; }
.brand span { color: var(--accent); }
nav.top { margin: 18px 0 34px; font-size: 0.95rem; }
nav.top a { color: var(--muted); text-decoration: none; margin-right: 18px; }
nav.top a:hover { color: var(--accent); }
h1 { font-size: 1.9rem; letter-spacing: -0.02em; margin: 0 0 6px; }
h2 { font-size: 1.2rem; margin: 34px 0 8px; letter-spacing: -0.01em; }
p, li { color: var(--fg); }
.muted { color: var(--muted); }
a { color: var(--accent); }
.lead { font-size: 1.1rem; color: var(--muted); margin-top: 4px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 22px 0;
}
.draft {
  background: #fff8e1;
  border: 1px solid #f0d98a;
  color: #6b5300;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 0.9rem;
  margin: 18px 0;
}
@media (prefers-color-scheme: dark) {
  .draft { background: #2a2410; border-color: #4d421a; color: #e8d493; }
}
footer.site {
  margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--border);
  color: var(--muted); font-size: 0.88rem;
}
footer.site a { color: var(--muted); margin-right: 16px; }
code { background: var(--card); padding: 1px 6px; border-radius: 5px; font-size: 0.9em; }