:root {
  --brand: #2563eb;
  --text: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --bg: #f8fafc;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
  line-height: 1.7;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); }
.bar { background: #fff; border-bottom: 1px solid var(--line); }
.bar .in { max-width: 960px; margin: 0 auto; height: 56px; padding: 0 16px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-weight: 700; color: var(--text); text-decoration: none; }
main { max-width: 960px; margin: 0 auto; padding: 40px 16px 24px; }
h1 { font-size: 28px; margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 20px; margin: 36px 0 8px; }
.lead { color: var(--muted); margin: 0 0 28px; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); padding: 0; list-style: none; }
.card { display: block; height: 100%; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 20px; color: var(--text); text-decoration: none; transition: border-color .15s, box-shadow .15s; }
.card:hover { border-color: var(--brand); box-shadow: 0 4px 16px rgb(37 99 235 / .08); }
.card .icon { font-size: 28px; }
.card h2 { font-size: 17px; margin: 8px 0 4px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.doc { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 28px; }
.doc h2 { font-size: 17px; margin-top: 28px; }
.doc p, .doc li { color: #334155; font-size: 15px; }
footer { border-top: 1px solid var(--line); background: #fff; margin-top: 48px; }
footer .in { max-width: 960px; margin: 0 auto; padding: 20px 16px; display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; font-size: 14px; color: #64748b; }
footer nav { display: flex; gap: 16px; }
footer a { color: #64748b; text-decoration: none; }
footer a:hover { color: var(--text); }