:root {
  color-scheme: light;
  --bg: #fafafa;
  --paper: #ffffff;
  --ink: #171717;
  --muted: #5f6368;
  --line: #e5e7eb;
  --accent: #111827;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.62;
}

main {
  width: min(860px, calc(100% - 32px));
  margin: 32px auto;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: clamp(24px, 4vw, 48px);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 32px;
}

a {
  color: var(--accent);
  font-weight: 650;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.08;
}

h2 {
  margin-top: 32px;
  font-size: 22px;
  line-height: 1.25;
}

h3 {
  margin-top: 24px;
  font-size: 17px;
}

p,
li {
  font-size: 16px;
}

ul {
  padding-left: 22px;
}

.meta {
  color: var(--muted);
  margin-top: 0;
}

.notice {
  background: #f5f5f5;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
}

footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}