:root {
  color-scheme: light dark;
  --background: #f4f7fb;
  --paper: #ffffff;
  --text: #192b40;
  --secondary: #4c6077;
  --accent: #315d91;
  --line: #d7e1ed;
  --selection: #d8e7fa;
}
* { box-sizing: border-box; }
html { scrollbar-color: var(--secondary) var(--background); }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}
::selection { background: var(--selection); color: var(--text); }
a { color: var(--accent); text-underline-offset: .2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
.page { width: min(100% - 40px, 780px); margin-inline: auto; }
.masthead { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 30px; }
.brand { color: var(--text); font-size: 22px; font-weight: 750; text-decoration: none; }
.languages { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 15px; }
.languages a { display: inline-flex; min-height: 44px; align-items: center; }
.languages [aria-current] { color: var(--text); font-weight: 650; text-decoration: none; }
main { padding: 40px 44px 44px; background: var(--paper); border-radius: 16px; }
h1 { margin: 0 0 8px; font-size: clamp(30px, 5vw, 40px); line-height: 1.2; letter-spacing: -.025em; text-wrap: balance; }
.updated { margin: 0 0 26px; color: var(--secondary); font-size: 14px; }
.intro { font-size: 19px; line-height: 1.6; }
h2 { margin: 34px 0 10px; font-size: 22px; line-height: 1.35; text-wrap: balance; }
p { margin: 0 0 14px; }
ul { padding-inline-start: 22px; margin: 12px 0 18px; }
li + li { margin-top: 8px; }
.contents { margin-block: 26px 30px; padding-block: 18px; border-block: 1px solid var(--line); }
.contents ul { display: flex; flex-wrap: wrap; gap: 10px 22px; list-style: none; padding: 0; margin: 0; }
.contents li + li { margin: 0; }
.contents a { display: inline-block; padding-block: 5px; }
section { scroll-margin-top: 24px; }
footer { padding: 24px 0 40px; color: var(--secondary); font-size: 14px; }
footer p { margin-bottom: 6px; }
@media (prefers-color-scheme: dark) {
  :root { --background: #0c1727; --paper: #142238; --text: #e4edf9; --secondary: #afc0d6; --accent: #a9c9f7; --line: #35465e; --selection: #31517d; }
}
@media (max-width: 560px) {
  .page { width: min(100% - 32px, 780px); }
  .masthead { padding-block: 18px; flex-wrap: wrap; }
  main { padding: 26px 22px 30px; }
  h2 { font-size: 21px; }
  .intro { font-size: 18px; }
}
@media print {
  :root { --background: white; --paper: white; --text: black; --secondary: #333; --accent: #222; }
  .page { width: 100%; }
  main { padding: 0; }
  .languages, .contents { display: none; }
  h2 { break-after: avoid; }
}