:root { --bg: #f7f7fa; --fg: #1c1c1e; --muted: #5f5f66; --card: #fff; --accent: #4a6bd1; }
@media (prefers-color-scheme: dark) { :root { --bg: #0e0f1a; --fg: #f2f2f7; --muted: #a0a0aa; --card: #1a1b28; --accent: #8fd3c9; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.65 -apple-system, system-ui, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 28px; margin: 0 0 6px; }
h2 { font-size: 19px; margin: 28px 0 8px; }
h3 { font-size: 16px; margin: 18px 0 4px; }
p, li { color: var(--fg); }
.lead { color: var(--muted); }
.card { background: var(--card); border-radius: 14px; padding: 4px 18px 14px; margin: 14px 0; }
a { color: var(--accent); }
footer { margin-top: 40px; color: var(--muted); font-size: 14px; }
footer a { margin-right: 14px; }