:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --primary: #2563eb;
  --border: #e5e7eb;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.container { max-width: 920px; margin: 0 auto; padding: 32px 20px 56px; }
.hero, .card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(17,24,39,0.04);
}
.hero { margin-bottom: 22px; }
h1, h2, h3 { margin-top: 0; line-height: 1.25; }
h1 { font-size: 2.2rem; margin-bottom: 8px; }
h2 { font-size: 1.45rem; margin-bottom: 12px; }
h3 { font-size: 1.1rem; margin-bottom: 8px; }
p.lead { font-size: 1.05rem; color: var(--muted); }
.badges { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.badge { background: #eff6ff; color: var(--primary); border-radius: 999px; padding: 8px 14px; font-weight: 600; font-size: 0.95rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin-top: 22px; }
ul { padding-left: 1.2rem; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.footer { color: var(--muted); font-size: 0.92rem; margin-top: 18px; }
.nav { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.nav a { background: #fff; border: 1px solid var(--border); border-radius: 999px; padding: 8px 14px; text-decoration: none; }
.notice { background: #ecfeff; border-left: 4px solid #06b6d4; padding: 14px 16px; border-radius: 12px; margin: 16px 0; }
.small { color: var(--muted); font-size: 0.95rem; }