:root {
  color-scheme: light dark;
  --background: #f5f6fb;
  --surface: #ffffff;
  --text: #18182a;
  --muted: #62627a;
  --accent: #6259df;
  --border: #dedfeb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #11111d;
    --surface: #1a1a2a;
    --text: #f4f3ff;
    --muted: #b7b5ca;
    --accent: #a8a1ff;
    --border: #343449;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main, footer {
  width: min(760px, calc(100% - 32px));
  margin-inline: auto;
}

main {
  margin-top: 48px;
  margin-bottom: 32px;
  padding: clamp(24px, 5vw, 48px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 18px 60px rgb(20 20 45 / 8%);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  margin-bottom: 36px;
}

h1 { font-size: clamp(2rem, 6vw, 3rem); line-height: 1.08; margin: 0 0 12px; }
h2 { margin-top: 2.2rem; line-height: 1.25; }
p, li { max-width: 68ch; }
.lede, .updated { color: var(--muted); }
.notice { padding: 16px 18px; border-left: 4px solid var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); border-radius: 10px; }
a { color: var(--accent); text-underline-offset: 3px; }
footer { padding: 0 8px 48px; color: var(--muted); font-size: 0.9rem; }
.lang { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--border); }