:root {
  --bg: #ffffff;
  --text: #191f28;
  --muted: #6b7684;
  --line: #e5e8eb;
  --link: #3182f6;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #17171c; --text: #e4e4e5; --muted: #9e9ea4; --line: #2c2c35; --link: #4593fc; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 20px 64px; }
h1 { font-size: 24px; line-height: 1.4; margin: 0 0 4px; }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 32px; }
h2 { font-size: 18px; line-height: 1.5; margin: 32px 0 8px; padding-top: 16px; border-top: 1px solid var(--line); }
p, li { margin: 0 0 8px; }
ol, ul { padding-left: 20px; margin: 0 0 8px; }
a { color: var(--link); }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 8px 0 16px; }
th, td { border: 1px solid var(--line); padding: 8px; text-align: left; vertical-align: top; }
th { width: 30%; font-weight: 600; }
.box { border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 16px 0; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }