:root {
  color-scheme: light dark;
  --fg: #1a1a1a;
  --bg: #ffffff;
  --muted: #5a5a5a;
  --line: #d8d8d8;
  --link: #0b57a4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e4e4e4;
    --bg: #16181a;
    --muted: #9a9a9a;
    --line: #34383c;
    --link: #79b8ff;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0 auto;
  padding: 3rem 1.25rem 5rem;
  max-width: 42rem;
  color: var(--fg);
  background: var(--bg);
  font-family: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.85;
  text-wrap: pretty;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  line-height: 1.4;
}

h2 {
  margin: 2.75rem 0 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 1.125rem;
  line-height: 1.5;
}

h3 {
  margin: 1.75rem 0 0.5rem;
  font-size: 1rem;
}

p,
ul,
ol,
table {
  margin: 0 0 1rem;
}

ul,
ol {
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.35rem;
}

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

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9375em;
}

.updated {
  margin-bottom: 2.5rem;
  color: var(--muted);
  font-size: 0.875rem;
}

nav {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.9375rem;
}

nav a {
  margin-right: 1.25rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

th,
td {
  padding: 0.5rem 0.75rem 0.5rem 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  font-weight: 600;
  white-space: nowrap;
}

footer {
  margin-top: 4rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.875rem;
}

@media (max-width: 30rem) {
  body {
    padding: 2rem 1rem 4rem;
  }

  th {
    white-space: normal;
  }
}