:root { color-scheme: light dark; --text: #1e293b; --muted: #64748b; --accent: #2563eb; --bg: #ffffff; }
@media (prefers-color-scheme: dark) { :root { --text: #dbe4f0; --muted: #9fb0c6; --accent: #60a5fa; --bg: #0f172a; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif; line-height: 1.6; }
main { max-width: 720px; margin: 0 auto; padding: 48px 20px 64px; }
h1 { font-size: 32px; margin: 0 0 8px; }
h2 { font-size: 18px; margin: 32px 0 8px; }
.lead { color: var(--muted); font-size: 16px; margin: 0; }
a { color: var(--accent); }
ul { padding-left: 20px; }
li { margin: 6px 0; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.95em; }
footer { margin-top: 48px; color: var(--muted); font-size: 14px; }