:root { color-scheme: light dark; --fg: #1d1d1f; --bg: #ffffff; --muted: #5f6368; --line: #d7d7db; --link: #0b57d0; }
@media (prefers-color-scheme: dark) { :root { --fg: #ececf0; --bg: #16171a; --muted: #a8abb2; --line: #3a3c42; --link: #8ab4f8; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.7 system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif; }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 16px; }
header { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: baseline; border-bottom: 1px solid var(--line); }
header nav { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.brand { font-weight: 700; }
a { color: var(--link); }
h1 { font-size: 1.6rem; line-height: 1.3; }
h2 { font-size: 1.25rem; margin-top: 2rem; }
section.en { margin-top: 3rem; padding-top: 1rem; border-top: 2px solid var(--line); }
blockquote { margin: 1rem 0; padding: 0 1rem; border-inline-start: 4px solid var(--line); color: var(--muted); }
code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.9em; overflow-wrap: anywhere; }
.table { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { border: 1px solid var(--line); padding: 6px 8px; vertical-align: top; text-align: start; }
footer { color: var(--muted); font-size: 0.9rem; border-top: 1px solid var(--line); }