:root {
  --bg: #fafafa;
  --text: #222;
  --text-muted: #666;
  --border: #e5e5e5;
  --accent: #2f6f4f;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 20px 40px;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

main {
  max-width: 1000px;
  margin: 0 auto;
}

h1 {
  font-size: 28px;
  margin: 28px 0 8px;
}

h2 {
  font-size: 20px;
  margin: 24px 0 10px;
}

h3 {
  font-size: 16px;
  margin: 16px 0 8px;
}

p {
  color: var(--text-muted);
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

button {
  font-family: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.site-header .logo {
  font-weight: 800;
  font-size: 18px;
  color: var(--text);
}

.site-header nav a {
  margin-left: 16px;
  color: var(--text-muted);
  font-size: 14px;
}

.breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.breadcrumb a {
  color: var(--text-muted);
}