/* 공통 디자인 토큰 + 뼈대(nav·버튼·footer).
   index.html / calculator.html 은 자체 <style>에 같은 토큰을 갖고 있고,
   새로 추가되는 페이지(menus.html · menu.html)는 이 파일을 쓴다. */
:root{
  --paper:#EDF0EA;
  --card:#FFFFFF;
  --ink:#16201A;
  --ink-soft:#54605A;
  --line:#DCE1D8;
  --brand:#1F5136;
  --brand-deep:#173E29;
  --up:#C6362F;
  --down:#245FA6;
  --flat:#9AA69E;
  --sans:'Pretendard',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:'tnum';
}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* nav */
.nav{display:flex;align-items:center;justify-content:space-between;padding:22px 0;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:20px;letter-spacing:-.02em}
.brand .mark{width:32px;height:32px;border-radius:8px;display:block;flex-shrink:0}
a.brand{text-decoration:none;color:inherit}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-link{font-size:14.5px;font-weight:600;color:var(--ink-soft);text-decoration:none;
  padding:9px 14px;border-radius:999px;transition:color .18s,background .18s}
.nav-link:hover{color:var(--brand);background:#E5EBE3}
.nav-link[aria-current="page"]{color:var(--brand);background:#E5EBE3}
.nav-cta{font-size:14.5px;font-weight:600;color:var(--brand);text-decoration:none;border:1.5px solid var(--line);
  padding:9px 16px;border-radius:999px;transition:border-color .18s,background .18s}
.nav-cta:hover{border-color:var(--brand);background:#fff}

/* buttons */
.btn{font-family:var(--sans);font-size:15.5px;font-weight:700;border-radius:11px;cursor:pointer;
  border:none;padding:14px 22px;text-decoration:none;display:inline-block;transition:transform .12s,background .18s}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-onbrand{background:#fff;color:var(--brand)}
.btn-onbrand:hover{background:#EAF2EC}
.btn:active{transform:translateY(1px)}

/* section heading */
.head{padding:36px 0 22px}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--brand);text-transform:uppercase}
h1{font-size:clamp(28px,4vw,40px);line-height:1.14;letter-spacing:-.035em;font-weight:800;margin-top:14px}
.lede{margin-top:14px;font-size:16.5px;color:var(--ink-soft);max-width:40em}

/* 더미 데이터 안내 배너 */
.dummy-note{display:flex;align-items:flex-start;gap:10px;background:#FBF6E7;border:1px solid #E7DBB4;
  border-radius:12px;padding:13px 16px;font-size:13.5px;color:#6B5A24;margin-top:20px}
.dummy-note .tag{font-family:var(--mono);font-size:10.5px;font-weight:600;background:#EADFB8;color:#5C4D1C;
  padding:3px 7px;border-radius:6px;white-space:nowrap;letter-spacing:.02em}

.up{color:var(--up)} .down{color:var(--down)} .flat{color:var(--flat)}

/* footer */
footer{padding:48px 0 60px;border-top:1px solid var(--line);margin-top:20px}
.foot-grid{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;align-items:flex-start}
.foot-brand{font-weight:800;font-size:18px;letter-spacing:-.02em}
.foot-brand .name{display:flex;align-items:center;gap:8px}
.foot-brand .mark{width:28px;height:28px;border-radius:7px;display:block;flex-shrink:0}
.foot-brand p{font-weight:400;font-size:14px;color:var(--ink-soft);margin-top:8px;max-width:24em}
.foot-meta{font-size:13.5px;color:var(--ink-soft);text-align:right;line-height:1.9}
.foot-meta a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line)}
.foot-src{margin-top:26px;font-size:12px;color:var(--flat)}

a:focus-visible,button:focus-visible,select:focus-visible{outline:2.5px solid var(--brand);outline-offset:3px;border-radius:6px}

@media (max-width:720px){
  .foot-meta{text-align:left}
}