:root { color-scheme: light dark; --text: #1d1d1f; --muted: #5b5b60; --bg: #ffffff; --line: #e3e3e6; --accent: #3b5bdb; }
@media (prefers-color-scheme: dark) {
  :root { --text: #ececee; --muted: #a2a2a8; --bg: #141416; --line: #2c2c30; --accent: #8ea5ff; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 40px 16px 64px; }
h1 { margin: 0 0 6px; font-size: 1.8rem; line-height: 1.25; }
h2 { margin: 32px 0 8px; font-size: 1.15rem; }
p, li { color: var(--text); }
.meta { margin: 0 0 24px; color: var(--muted); font-size: .9rem; }
.note { padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted); font-size: .92rem; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { padding: 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
a { color: var(--accent); }
nav { margin-bottom: 24px; font-size: .92rem; }