:root {
  --bg: #f6f1e7; --card: #fffdf8; --ink: #1f1c17; --muted: #6b6457; --line: #e3dccd;
  --accent: #c2512b; --accent-ink: #ffffff; --soft: #f3e3d9; --ok: #2f6f5e; --warn-bg: #fff3d6; --warn-ink: #7a5300;
  --past: #a39b8c; --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17150f; --card: #211e17; --ink: #f1ece2; --muted: #a9a192; --line: #36312a;
    --accent: #ef8a62; --accent-ink: #1b120d; --soft: #3a2a21; --ok: #7cc6b0; --warn-bg: #3a2f14; --warn-ink: #f2d38a;
    --past: #6f685c;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", "Segoe UI", system-ui, sans-serif;
  word-break: keep-all; overflow-wrap: anywhere;
}
a { color: inherit; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--card); padding: 8px 12px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 8px; }

/* 머리 */
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 14px; padding-bottom: 6px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; text-decoration: none; letter-spacing: -0.01em; }
.logo-mark { display: inline-grid; grid-template-columns: repeat(3, 6px); gap: 3px; align-items: end; padding: 6px; background: var(--accent); border-radius: 9px; }
.logo-mark b { display: block; width: 6px; background: var(--accent-ink); border-radius: 2px; }
.logo-mark b:nth-child(1) { height: 8px; } .logo-mark b:nth-child(2) { height: 14px; } .logo-mark b:nth-child(3) { height: 11px; }
.top-ctl { display: flex; align-items: center; gap: 8px; }
select, input, button { font: inherit; color: inherit; }
.mini select { background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 6px 10px; font-size: 14px; max-width: 46vw; }
.lang { background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; font-size: 14px; font-weight: 600; cursor: pointer; }

.hero { padding-top: 18px; padding-bottom: 6px; }
h1 { font-size: clamp(26px, 6vw, 38px); line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.02em; }
.lede { color: var(--muted); margin: 0; }

/* 계산기 고르기 */
.picker { display: flex; flex-wrap: wrap; gap: 8px; padding-top: 18px; padding-bottom: 14px; }
.picker a {
  text-decoration: none; padding: 8px 14px; border-radius: 999px; background: var(--card);
  border: 1px solid var(--line); font-size: 15px; font-weight: 600; cursor: pointer;
}
.picker a:hover { border-color: var(--accent); }
.picker a.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* 계산기 카드 */
.tool { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; scroll-margin-top: 12px; }
.tool h2 { font-size: 20px; margin: 0 0 14px; letter-spacing: -0.01em; }
.hint { color: var(--muted); margin: -6px 0 14px; font-size: 15px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 12px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--muted); font-weight: 600; min-width: 0; }
.field.narrow { max-width: 180px; }
.field input {
  width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg); color: var(--ink); font-size: 17px; font-weight: 500; min-height: 46px;
}
.field input:focus, .mini select:focus, .lang:focus-visible, .picker a:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.check { display: flex; align-items: center; gap: 8px; margin-top: 12px; font-size: 15px; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); }
.seg { display: inline-flex; gap: 0; margin-top: 12px; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.seg label { padding: 8px 14px; cursor: pointer; font-size: 15px; display: flex; align-items: center; gap: 6px; }
.seg label:has(input:checked) { background: var(--soft); font-weight: 700; }
.seg input { accent-color: var(--accent); }

/* 결과 */
.result { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line); min-height: 60px; }
.big { font-size: clamp(30px, 8vw, 44px); font-weight: 800; margin: 0; letter-spacing: -0.02em; color: var(--accent); line-height: 1.15; }
.sub { margin: 6px 0 0; color: var(--muted); }
.empty { color: var(--muted); margin: 0; }
.warn { background: var(--warn-bg); color: var(--warn-ink); padding: 10px 12px; border-radius: 10px; margin: 14px 0 0; font-size: 14px; }
.rows { margin: 14px 0 0; display: grid; gap: 0; }
.rows div { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.rows div:last-child { border-bottom: 0; }
.rows dt { color: var(--muted); }
.rows dd { margin: 0; font-weight: 700; text-align: right; font-variant-numeric: tabular-nums; }
.hols, .anniv { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 4px; }
.hols li { padding: 6px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.hols li span { display: inline-block; min-width: 9.5em; color: var(--muted); font-variant-numeric: tabular-nums; }
.hols li.past { color: var(--past); }
.hols li.wkend span::after { content: " ·"; }
.anniv li { display: grid; grid-template-columns: 4.5em 1fr auto; gap: 10px; align-items: baseline; padding: 7px 10px; border-radius: 8px; font-variant-numeric: tabular-nums; }
.anniv li b { font-weight: 700; }
.anniv li span { color: var(--muted); }
.anniv li em { font-style: normal; font-weight: 700; font-size: 14px; }
.anniv li.past { color: var(--past); }
.anniv li.past span { color: var(--past); }
.anniv li.next { background: var(--soft); }
.anniv li.next em { color: var(--accent); }

.ad-slot { margin-top: 16px; min-height: 100px; }
.ad-preview { display: flex; align-items: center; justify-content: center; border: 2px dashed var(--accent); border-radius: 12px; color: var(--accent); font-weight: 700; font-size: 14px; }

/* 머리 메뉴 */
.top { flex-wrap: wrap; }
.top-nav { display: flex; gap: 14px; margin-left: auto; font-weight: 600; font-size: 15px; }
.top-nav a { text-decoration: none; color: var(--muted); }
.top-nav a:hover { color: var(--accent); }

/* 가이드 목록 */
.guides { padding-top: 34px; }
.guides h2 { font-size: 20px; margin: 0 0 10px; }
.guide-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.guide-list a { display: block; height: 100%; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; text-decoration: none; }
.guide-list a:hover { border-color: var(--accent); }
.guide-list b { display: block; margin-bottom: 4px; }
.guide-list span { display: block; color: var(--muted); font-size: 14px; }

/* 글 페이지 */
.crumbs { font-size: 14px; color: var(--muted); padding-top: 10px; }
.crumbs a { color: var(--muted); }
.doc { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; margin: 14px 0; }
.article h1 { font-size: clamp(24px, 5.5vw, 32px); line-height: 1.3; margin: 0 0 6px; letter-spacing: -0.02em; }
.article .meta { color: var(--muted); font-size: 14px; margin: 0 0 18px; }
.article h2 { font-size: 20px; margin: 28px 0 8px; }
.article p, .article li { line-height: 1.75; }
.article ul { padding-left: 1.2em; }
.article table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; display: block; overflow-x: auto; }
.article th, .article td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.article th { background: var(--soft); }
.article .tip { background: var(--soft); border-radius: 10px; padding: 10px 14px; }
.article .guide-list { margin-top: 16px; }
.cta { margin: 26px 0 4px; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 700; padding: 12px 18px; border-radius: 999px; }
.related h2 { font-size: 18px; margin: 0 0 8px; }
.related ul { margin: 0; padding-left: 1.2em; line-height: 1.9; }

/* FAQ */
.faq { padding-top: 34px; padding-bottom: 10px; }
.faq h2 { font-size: 20px; margin: 0 0 10px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 0 16px; margin-bottom: 8px; }
.faq summary { cursor: pointer; padding: 13px 0; font-weight: 700; }
.faq p { margin: 0 0 14px; color: var(--muted); }

.foot { padding-top: 22px; padding-bottom: 40px; color: var(--muted); font-size: 14px; }

@media (max-width: 560px) {
  .grid2 { grid-template-columns: 1fr; }
  .grid4 { grid-template-columns: 1fr 1fr; }
  .tool { padding: 16px; }
  .top { flex-wrap: wrap; }
  .logo { font-size: 17px; }
  .picker a { padding: 7px 12px; font-size: 14px; }
  .hols li span { min-width: 0; display: block; }
  .guide-list { grid-template-columns: 1fr; }
  .doc { padding: 18px 16px; }
  .top-nav { margin-left: 0; order: 3; width: 100%; }
  .anniv li { grid-template-columns: 3.6em 1fr auto; gap: 6px; padding: 7px 6px; font-size: 14px; }
  .anniv li span { white-space: nowrap; }
}