/* 안내 글 페이지(가이드·수식·내 글씨·자주 묻는 질문·소개) 공통 스타일. 라이트/다크는 theme.js가 정함 */
:root { --bg: #eef0f4; --panel: #fff; --fg: #191c23; --muted: #5f6878; --line: #e1e5ec; --accent: #2a44b0; --soft: #f4f6fa; color-scheme: light; }
:root[data-theme="dark"] { --bg: #121419; --panel: #1a1d24; --fg: #e6e9ef; --muted: #9aa3b3; --line: #2a2f38; --accent: #93a7ff; --soft: #20242c; color-scheme: dark; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15.5px/1.8 "IBM Plex Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif; word-break: keep-all; overflow-wrap: anywhere; }
a { color: var(--accent); }
.top { background: var(--panel); border-bottom: 1px solid var(--line); }
.top-in { max-width: 860px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 8px 18px; flex-wrap: wrap; }
.top .brand { display: flex; margin-right: auto; }
.top .brand img { height: 32px; width: auto; }
.top nav { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 14px; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--fg); }
.top nav a[aria-current="page"] { font-weight: 600; }
@media (max-width: 640px) {
  .top nav { order: 3; width: 100%; flex-wrap: nowrap; overflow-x: auto; white-space: nowrap; padding-bottom: 2px; }
}
.go { display: inline-flex; align-items: center; height: 34px; padding: 0 14px; border-radius: 8px; background: var(--accent); color: #fff; font-size: 14px; font-weight: 600; text-decoration: none; }
:root[data-theme="dark"] .go { color: #10131a; }
main { max-width: 860px; margin: 0 auto; padding: 28px 16px 48px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 30px 26px; }
@media (max-width: 560px) { .card { padding: 22px 16px; } }
h1 { font-size: 26px; line-height: 1.35; margin: 0 0 6px; }
h2 { font-size: 19px; margin: 36px 0 8px; padding-top: 4px; }
h3 { font-size: 16px; margin: 22px 0 4px; }
.meta { color: var(--muted); font-size: 13px; margin: 0 0 16px; }
.lead { font-size: 16.5px; }
.toc { margin: 18px 0 8px; padding: 14px 18px; border-radius: 10px; background: var(--soft); font-size: 14.5px; }
.toc strong { display: block; margin-bottom: 4px; }
.toc ol { margin: 0; padding-left: 20px; }
.tip { margin: 14px 0; padding: 12px 16px; border-left: 3px solid var(--accent); border-radius: 0 10px 10px 0; background: var(--soft); font-size: 14.5px; }
.tip p { margin: 0; }
code, kbd { font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: .9em; padding: 1px 5px; border-radius: 5px; background: var(--soft); border: 1px solid var(--line); }
pre { margin: 10px 0; padding: 12px 14px; border-radius: 10px; background: var(--soft); border: 1px solid var(--line); overflow-x: auto; font-size: 14px; line-height: 1.6; }
pre code { padding: 0; border: 0; background: none; }
.tbl { overflow-x: auto; margin: 10px 0; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-top: 1px solid var(--line); }
thead th { border-top: 0; color: var(--muted); font-weight: 600; white-space: nowrap; }
td code { white-space: nowrap; }
details { border-top: 1px solid var(--line); padding: 12px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; }
details p, details ul { margin: 8px 0 0; }
.next { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin: 28px 0 0; }
.next a { display: block; padding: 14px 16px; border: 1px solid var(--line); border-radius: 10px; text-decoration: none; color: var(--fg); background: var(--panel); }
.next a span { display: block; color: var(--muted); font-size: 13.5px; }
.next a:hover { border-color: var(--accent); }
.ad { margin: 24px auto 0; color: var(--muted); font-size: 11px; text-align: center; }
.ad[hidden] { display: none; }
.ad:has(ins[data-ad-status="unfilled"]) { display: none; }
.ad-lbl { display: block; margin-bottom: 4px; }
.foot { max-width: 860px; margin: 0 auto; padding: 0 16px 40px; color: var(--muted); font-size: 13.5px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: 4px; }
.foot a { color: var(--muted); }