:root {
  --bg: #ffffff;
  --fg: #16181d;
  --muted: #5b6270;
  --line: #e4e6eb;
  --accent: #1f5fbf;
  --soft: #f3f5f8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --fg: #eceef2;
    --muted: #a3a9b5;
    --line: #2a2e36;
    --accent: #7fb0ff;
    --soft: #1a1d23;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.75;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
header.hero { border-bottom: 1px solid var(--line); background: var(--soft); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header.hero .wrap { padding-top: 48px; padding-bottom: 36px; }
.eyebrow { margin: 0; color: var(--accent); font-weight: 600; font-size: 14px; letter-spacing: .02em; }
h1 { margin: 12px 0 0; font-size: 32px; line-height: 1.3; letter-spacing: -0.01em; }
.summary { margin: 16px 0 0; color: var(--muted); }
.meta { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 15px; color: var(--muted); }
.meta a, nav.links a { color: var(--muted); }
nav.links { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 15px; }
nav.links a[aria-current="page"] { color: var(--fg); font-weight: 600; text-decoration: none; }
main .wrap { padding-top: 32px; padding-bottom: 64px; }
section { padding: 24px 0; border-bottom: 1px solid var(--line); }
section:last-of-type { border-bottom: 0; }
h2 { margin: 0 0 12px; font-size: 22px; line-height: 1.4; }
h3 { margin: 20px 0 8px; font-size: 18px; }
p { margin: 8px 0; }
ul, ol { margin: 8px 0; padding-left: 22px; }
li { margin: 6px 0; }
a { color: var(--accent); }
.note { background: var(--soft); border-left: 3px solid var(--accent); padding: 12px 14px; border-radius: 6px; }
.table { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.6; }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: var(--soft); font-weight: 600; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .wrap { padding-top: 20px; padding-bottom: 40px; }
@media (max-width: 480px) {
  body { font-size: 16px; }
  h1 { font-size: 26px; }
  h2 { font-size: 20px; }
  header.hero .wrap { padding-top: 32px; padding-bottom: 28px; }
}
/* 좁은 화면에서는 표를 줄마다 카드로 쌓는다. 4칸 표가 한두 글자씩 끊겨 읽기 어려웠다. */
@media (max-width: 560px) {
  table, tbody, tr, td { display: block; width: 100%; }
  thead { display: none; }
  tr { border: 1px solid var(--line); border-radius: 8px; margin: 10px 0; padding: 6px 12px; }
  td { border: 0; padding: 4px 0; }
  td::before { content: attr(data-label); display: block; font-size: 13px; font-weight: 600; color: var(--muted); }
}