:root {
  --bg: #f8fafc;
  --fg: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --card: #ffffff;
  --link: #1d4ed8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 40%);
  color: var(--fg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
header {
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
}
.wrap {
  max-width: 48rem;
  margin: 0 auto;
  padding: 1rem 1rem;
  width: 100%;
}
header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.brand {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--fg);
  text-decoration: none;
}
.nav-home {
  border: 1px solid #cbd5e1;
  background: #fff;
  border-radius: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #334155;
  text-decoration: none;
}
main.wrap { flex: 1; padding-top: 3rem; padding-bottom: 3rem; }
h1 { font-size: 1.875rem; margin: 0 0 0.5rem; }
.meta { color: var(--muted); font-size: 0.875rem; margin: 0.25rem 0; }
section { margin-top: 2rem; }
h2 { font-size: 1.125rem; margin: 0 0 0.5rem; }
p, li { font-size: 0.9375rem; color: #334155; }
ul { padding-left: 1.25rem; }
a { color: var(--link); }
.links { list-style: none; padding: 0; }
.links li { margin: 0.75rem 0; }
.links a {
  display: inline-block;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 0.75rem;
  padding: 0.875rem 1rem;
  text-decoration: none;
  color: var(--fg);
  font-weight: 500;
  width: 100%;
}
footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 1rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--muted);
}