:root{--ink:#1f1b16;--muted:#7a7068;--line:#e8e1d8;--bg:#f7f3ee;--card:#fff;--brand:#6b4a2b;--warn:#b4530a;--warnbg:#fdeedd;--up:#b42318;--ok:#1f7a4d;--okbg:#e5f4ec}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 "Pretendard Variable",Pretendard,system-ui,sans-serif}
.topnav{max-width:1100px;margin:0 auto;padding:12px 16px 0;display:flex;gap:6px;flex-wrap:wrap;font-size:13px}
.topnav a{color:var(--muted);text-decoration:none;padding:4px 10px;border-radius:999px;border:1px solid transparent}
.topnav a.on{color:var(--brand);border-color:var(--line);background:#fff;font-weight:700}
.topnav a.home{color:var(--ink);font-weight:800}
header{padding:14px 16px 6px;max-width:1100px;margin:0 auto}
header h1{margin:0;font-size:24px;letter-spacing:-.02em}
header p{margin:4px 0 0;color:var(--muted)}
main{max-width:1100px;margin:0 auto;padding:0 16px 30px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin-top:16px}
.card h2{font-size:16px;margin:0 0 4px}
.hint{color:var(--muted);font-size:13px;margin:0 0 12px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.presets{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.presets .lead{width:100%;color:var(--muted);font-size:13px}
.pbtn{border:1px solid var(--line);background:#fff;border-radius:12px;padding:8px 14px;font:inherit;font-size:14px;cursor:pointer;text-align:left;line-height:1.35}
.pbtn small{display:block;font-size:12px;color:var(--muted);font-weight:400}
.pbtn.on{background:var(--brand);border-color:var(--brand);color:#fff}
.pbtn.on small{color:#f1e6da}
label.f{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
label.f span.in{display:flex;align-items:center;gap:6px;color:var(--ink);font-size:15px}
input,select{font:inherit;border:1px solid var(--line);border-radius:8px;padding:6px 8px;background:#fff;min-width:0}
input[type=number]{width:110px;text-align:right}
.scroll{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
th{color:var(--muted);font-weight:600;font-size:12.5px}
th:first-child,td:first-child{text-align:left}
tr.hl td{background:var(--okbg)}
tr.bad td{background:#fde2e2}
.summary{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:16px}
.summary div{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px 14px}
.summary b{display:block;font-size:22px;letter-spacing:-.02em}
.summary span{color:var(--muted);font-size:13px}
.advice{background:#fffaf2;border:1px solid #f0dcc0;border-radius:14px;padding:14px 16px;margin-top:16px}
.advice h2{font-size:15px;margin:0 0 6px}
.advice ul{margin:0;padding-left:18px}
.advice li{margin:3px 0}
.btn{border:0;background:var(--brand);color:#fff;border-radius:10px;padding:8px 14px;font:inherit;font-weight:700;cursor:pointer}
.btn.ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.load{display:flex;gap:8px;align-items:center;flex-wrap:wrap;background:#f3ede6;border-radius:10px;padding:8px 12px;margin-bottom:12px;font-size:14px}
.cta{display:grid;grid-template-columns:1.2fr 1fr;gap:12px;margin-top:16px}
.cta a{display:block;text-decoration:none;color:inherit;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.cta a.main{background:var(--brand);border-color:var(--brand);color:#fff}
.cta a b{display:block;font-size:16px;margin-bottom:4px}
.cta a span{font-size:13px;opacity:.85}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.related a{display:block;text-decoration:none;color:inherit;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#fff}
.related a b{display:block}
.related a span{font-size:13px;color:var(--muted)}
details{border-bottom:1px solid var(--line);padding:10px 0}
details summary{cursor:pointer;font-weight:700}
details p{margin:8px 0 0;color:#4a433c}
footer{max-width:1100px;margin:0 auto;padding:6px 16px 40px;color:var(--muted);font-size:13px}
footer a{color:var(--brand);font-weight:700}
@media (max-width:760px){.summary{grid-template-columns:1fr 1fr}.cta,.related{grid-template-columns:1fr}header h1{font-size:20px}}