*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans KR', sans-serif;
  background: #0f0f0f;
  color: #d4d4d4;
  line-height: 1.7;
  padding: 2rem 1rem 4rem;
}
.container {
  max-width: 720px;
  margin: 0 auto;
}
.back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #22c55e;
  text-decoration: none;
  font-size: 0.875rem;
  margin-bottom: 2rem;
}
.back:hover { color: #4ade80; }
h1 {
  font-size: 1.75rem;
  font-weight: 800;
  color: #f0f0f0;
  margin-bottom: 0.4rem;
}
.meta {
  font-size: 0.8rem;
  color: #666;
  margin-bottom: 2.5rem;
}
h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #e0e0e0;
  margin: 2rem 0 0.6rem;
  padding-top: 1.5rem;
  border-top: 1px solid #222;
}
h2:first-of-type { border-top: none; margin-top: 0; padding-top: 0; }
p { margin-bottom: 0.8rem; color: #b0b0b0; }
ul, ol { padding-left: 1.4rem; margin-bottom: 0.8rem; color: #b0b0b0; }
li { margin-bottom: 0.3rem; }
strong { color: #ddd; }
footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid #1e1e1e;
  font-size: 0.75rem;
  color: #555;
  text-align: center;
}
footer a { color: #22c55e; text-decoration: none; }
footer a:hover { color: #4ade80; }