:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1c1c1e;
  --muted: #6b6b70;
  --link: #0a7aff;
  --border: #e5e5ea;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1c1e;
    --fg: #f2f2f7;
    --muted: #98989e;
    --link: #5aa9ff;
    --border: #38383a;
  }
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

header.site-header {
  border-bottom: 1px solid var(--border);
  padding: 16px 20px;
}

header.site-header a {
  color: var(--fg);
  font-weight: 600;
  text-decoration: none;
  font-size: 17px;
}

h1 {
  font-size: 22px;
  margin: 16px 0 4px;
}

h2 {
  font-size: 17px;
  margin: 28px 0 8px;
}

p {
  margin: 0 0 12px;
  font-size: 15px;
  white-space: pre-line;
}

.meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 24px;
}

ul.menu {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  border-top: 1px solid var(--border);
}

ul.menu li {
  border-bottom: 1px solid var(--border);
}

ul.menu a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 4px;
  color: var(--fg);
  text-decoration: none;
  font-size: 16px;
}

ul.menu a::after {
  content: "›";
  color: var(--muted);
  font-size: 20px;
}

a {
  color: var(--link);
}