:root {
  --bg: #faf7f6;
  --fg: #1d1a1a;
  --sub: #6b6363;
  --line: #e4dcda;
  --accent: #a3141e;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141111;
    --fg: #eee8e7;
    --sub: #a59c9b;
    --line: #2e2827;
    --accent: #e0545c;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.85;
  font-size: 16px;
}
main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}
.app {
  margin: 0;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--sub);
}
.app a { color: inherit; text-decoration: none; }
h1 {
  margin: 0.25rem 0 0.5rem;
  font-size: 1.75rem;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  text-wrap: balance;
}
h2 {
  margin: 2.5rem 0 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 1.1rem;
}
.date, .note { color: var(--sub); font-size: 0.9rem; }
.lead { margin-top: 0; }
a { color: var(--accent); }
ul { padding-left: 1.25rem; }
li + li { margin-top: 0.4rem; }
dt { font-weight: 600; margin-top: 1rem; }
dd { margin: 0.25rem 0 0; color: var(--fg); }
.links { margin-top: 3rem; }