:root { color-scheme: light dark; font-family: system-ui, sans-serif; line-height: 1.55; }
body { max-width: 860px; margin: 0 auto; padding: 24px; }
nav { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; }
nav a { border: 1px solid #1596b8; border-radius: 999px; padding: 7px 13px; text-decoration: none; }
h1, h2 { line-height: 1.2; }
h2 { margin-top: 28px; }
.notice { border: 2px solid #d97706; border-radius: 10px; padding: 12px; }
footer { margin-top: 36px; opacity: .8; }