:root {
  --bg: #f8f8fa; --card: #ffffff; --text: #111114; --sub: #6b6b72; --line: #ececf0; --link: #2d5bd3;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0d0d0f; --card: #1c1c1f; --text: #f5f5f7; --sub: #9b9ba1; --line: #2e2e33; --link: #8fb0ff; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", system-ui, sans-serif;
  font-size: 16px; line-height: 1.7; word-break: keep-all;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
header a { color: var(--text); text-decoration: none; font-weight: 700; font-size: 20px; }
h1 { font-size: 26px; line-height: 1.35; margin: 0 0 8px; }
h2 { font-size: 18px; margin: 32px 0 8px; }
p, li { color: var(--text); }
.sub { color: var(--sub); font-size: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px; margin: 16px 0; }
a { color: var(--link); }
ul { padding-left: 20px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 8px 0; }
th, td { border: 1px solid var(--line); padding: 8px; text-align: left; vertical-align: top; }
th { background: var(--card); }
.table { overflow-x: auto; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 14px; color: var(--sub); }
footer a { margin-right: 14px; }