:root {
  --bg: #ffffff;
  --surface: #f6f7f9;
  --text: #1d2129;
  --muted: #5b6270;
  --line: #e3e6eb;
  --accent: #c8102e;
  --accent-soft: #fbe9ec;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --surface: #1d2026;
    --text: #e8eaee;
    --muted: #a2a8b3;
    --line: #2d3139;
    --accent: #ff6b7f;
    --accent-soft: #2b1a1e;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Malgun Gothic", "Noto Sans KR", sans-serif;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header.top { border-bottom: 1px solid var(--line); padding-bottom: 20px; margin-bottom: 28px; }
.brand { font-size: 14px; font-weight: 600; color: var(--accent); letter-spacing: .02em; }
h1 { font-size: 28px; line-height: 1.3; margin: 6px 0 8px; }
.meta { color: var(--muted); font-size: 14px; margin: 0; }
nav.tabs { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
nav.tabs a {
  font-size: 14px; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line);
  color: var(--text); text-decoration: none;
}
nav.tabs a[aria-current="page"] { background: var(--accent); border-color: var(--accent); color: #fff; }
h2 { font-size: 19px; margin: 40px 0 10px; padding-top: 4px; scroll-margin-top: 16px; }
h3 { font-size: 16px; margin: 22px 0 6px; }
p, ul, ol { margin: 8px 0; }
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }
a { color: var(--accent); }
.summary { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.summary ul { margin: 0; }
.note { background: var(--accent-soft); border-radius: 10px; padding: 12px 16px; font-size: 15px; }
.toc { background: var(--surface); border-radius: 12px; padding: 14px 18px; font-size: 15px; }
.toc ol { margin: 0; }
.table-scroll { overflow-x: auto; margin: 10px 0; }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; min-width: 520px; }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: var(--surface); font-weight: 600; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.cards { display: grid; gap: 12px; margin-top: 20px; }
.cards a {
  display: block; padding: 18px; border: 1px solid var(--line); border-radius: 12px;
  text-decoration: none; color: var(--text); background: var(--surface);
}
.cards strong { display: block; font-size: 17px; }
.cards span { color: var(--muted); font-size: 14px; }