:root {
  --bg: #f6f5f1;
  --surface: #ffffff;
  --ink: #1b1d1c;
  --muted: #5d625f;
  --line: #e2e0d8;
  --accent: #14532d;
  --accent-soft: #e5efe8;
  --warn: #8a4b08;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121413; --surface: #1b1e1c; --ink: #ecefed; --muted: #a3aaa6;
    --line: #2c312e; --accent: #7fd1a0; --accent-soft: #1f3327; --warn: #f0b36b;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.65 'Pretendard Variable', Pretendard, -apple-system, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  word-break: keep-all;
}
a { color: var(--accent); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header.site { border-bottom: 1px solid var(--line); background: var(--surface); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { font-weight: 800; text-decoration: none; color: var(--ink); letter-spacing: -0.02em; }
.logo span { color: var(--accent); }
nav.top a { margin-left: 14px; font-size: 14px; text-decoration: none; color: var(--muted); }
nav.top a:hover { color: var(--ink); }
@media (max-width: 560px) { nav.top { display: none; } }

h1 { font-size: 28px; letter-spacing: -0.03em; margin: 32px 0 6px; line-height: 1.3; }
.lead { color: var(--muted); margin: 0 0 20px; }
.badge { display: inline-block; font-size: 12px; font-weight: 700; color: var(--accent); background: var(--accent-soft); padding: 3px 9px; border-radius: 99px; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin: 16px 0; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 6px; }
.field .hint { font-size: 13px; color: var(--muted); margin-top: 4px; }
.input { position: relative; }
.input input, select {
  width: 100%; font: inherit; font-size: 17px; padding: 11px 44px 11px 12px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink);
}
select { padding-right: 12px; }
.input .unit { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 14px; }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .row { grid-template-columns: 1fr; } }
.seg { display: flex; gap: 6px; flex-wrap: wrap; }
.seg label { flex: 1; min-width: 90px; }
.seg input { position: absolute; opacity: 0; }
.seg span { display: block; text-align: center; padding: 10px; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; font-weight: 600; font-size: 15px; }
.seg input:checked + span { background: var(--accent); color: var(--surface); border-color: var(--accent); }
.seg input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.check { display: flex; gap: 8px; align-items: center; font-size: 15px; margin-bottom: 8px; }

.result { background: var(--accent-soft); border-color: transparent; }
.result .big { font-size: 34px; font-weight: 800; letter-spacing: -0.03em; color: var(--accent); line-height: 1.2; }
.result .label { font-size: 14px; color: var(--muted); }
.kv { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; margin-top: 14px; font-size: 15px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.note { font-size: 13px; color: var(--warn); margin-top: 10px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
th, td { padding: 8px 6px; border-bottom: 1px solid var(--line); text-align: right; }
th:first-child, td:first-child { text-align: left; }
th { color: var(--muted); font-weight: 600; }

.ad { margin: 20px 0; min-height: 90px; display: flex; align-items: center; justify-content: center; border: 1px dashed var(--line); border-radius: 10px; color: var(--muted); font-size: 12px; }
.prose h2 { font-size: 20px; margin: 32px 0 8px; letter-spacing: -0.02em; }
.prose p, .prose li { color: var(--ink); }
.prose .src { font-size: 13px; color: var(--muted); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin: 20px 0; }
.tile { display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; text-decoration: none; color: var(--ink); }
.tile:hover { border-color: var(--accent); }
.tile strong { display: block; font-size: 17px; margin-bottom: 4px; }
.tile span { font-size: 14px; color: var(--muted); }

footer.site { margin-top: 48px; padding: 24px 0 40px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }

/* SEO·AEO 구성요소 */
.crumbs { font-size: 13px; color: var(--muted); margin-top: 20px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs + h1 { margin-top: 8px; }
.meta { font-size: 13px; color: var(--muted); margin: 0 0 16px; }
.answer { border-left: 4px solid var(--accent); background: var(--surface); border-radius: 0 var(--radius) var(--radius) 0; padding: 14px 18px; margin: 0 0 16px; }
.answer > strong { display: block; font-size: 13px; color: var(--accent); margin-bottom: 4px; }
.answer p { margin: 0; }
.faq h3 { font-size: 17px; margin: 20px 0 4px; }
.faq p { margin: 0; }
.sources { font-size: 14px; }
.related h2, h2.cat { font-size: 18px; margin: 32px 0 0; }
nav.foot a { margin-right: 14px; color: var(--muted); }
footer.site p { margin: 8px 0 0; }

/* 가이드 */
.answer ul { margin: 0; padding-left: 20px; }
.answer li { margin: 2px 0; }
.guide h1 { margin-top: 8px; }
.guide h2 { margin-top: 36px; }
.guide table { margin: 12px 0; }
.cta { display: grid; gap: 10px; margin: 28px 0; }
.cta a { display: block; background: var(--accent-soft); border-radius: var(--radius); padding: 16px 18px; text-decoration: none; color: var(--ink); }
.cta a strong { color: var(--accent); display: block; }
.cta a span { font-size: 14px; color: var(--muted); }
.guide-list { list-style: none; padding: 0; margin: 12px 0; }
.guide-list li { border-bottom: 1px solid var(--line); padding: 12px 0; }
.guide-list a { font-weight: 700; text-decoration: none; color: var(--ink); display: block; }
.guide-list a:hover { color: var(--accent); }
.guide-list span { font-size: 14px; color: var(--muted); }
.callout { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; margin: 16px 0; }

/* 모바일 표 */
.tbl { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 12px 0; }
.tbl table { margin: 0; }
@media (max-width: 480px) { th, td { padding: 7px 4px; font-size: 13px; } }

/* 상단 메뉴: 3개 링크라 모바일에서도 표시 */
@media (max-width: 560px) { nav.top { display: block; } nav.top a { margin-left: 12px; font-size: 14px; } }
.sources li, .guide-list li { line-height: 1.9; }
.sources a { display: inline-block; padding: 4px 0; }

/* 히어로 */
.hero-tile { display: block; background: var(--accent); color: #fff; border-radius: var(--radius); padding: 22px 20px; text-decoration: none; margin: 20px 0 8px; }
.hero-tile span { font-size: 13px; opacity: .85; }
.hero-tile strong { display: block; font-size: 22px; margin: 4px 0; letter-spacing: -0.02em; }
.hero-tile em { font-style: normal; font-size: 14px; opacity: .9; }
@media (prefers-color-scheme: dark) { .hero-tile { color: #0f1a13; } }
.btn { margin-top: 18px; width: 100%; font: inherit; font-weight: 700; font-size: 16px; padding: 13px; border: 0; border-radius: 10px; background: var(--accent); color: var(--surface); cursor: pointer; }