:root {
  --bg: #ffffff;
  --fg: #18181b;
  --muted: #52525b;
  --line: #e4e4e7;
  --card: #fafafa;
  --accent: #2563eb;
  --badge-live: #15803d;
  --badge-dev: #b45309;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --fg: #ededed;
    --muted: #a1a1aa;
    --line: #27272a;
    --card: #141416;
    --accent: #60a5fa;
    --badge-live: #4ade80;
    --badge-dev: #fbbf24;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
  line-height: 1.6;
}
a { color: var(--accent); }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.logo { font-weight: 800; font-size: 20px; letter-spacing: -0.3px; color: var(--fg); text-decoration: none; }
nav.site { display: flex; gap: 18px; font-size: 15px; flex-wrap: wrap; }
nav.site a { color: var(--muted); text-decoration: none; }
nav.site a:hover { color: var(--fg); }
.hero { padding: 64px 0 40px; }
.hero h1 { font-size: clamp(28px, 5vw, 40px); line-height: 1.25; margin: 0 0 12px; letter-spacing: -0.5px; }
.hero p { margin: 0; color: var(--muted); font-size: 17px; max-width: 640px; }
section { padding: 32px 0; }
section h2 { font-size: 22px; margin: 0 0 16px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.card { border: 1px solid var(--line); background: var(--card); border-radius: 16px; padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.card h3 { margin: 0; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; flex-grow: 1; }
.badge { align-self: flex-start; font-size: 12px; font-weight: 700; border: 1px solid currentColor; border-radius: 999px; padding: 2px 10px; }
.badge.live { color: var(--badge-live); }
.badge.dev { color: var(--badge-dev); }
.links { display: flex; gap: 14px; flex-wrap: wrap; font-size: 15px; font-weight: 600; }
.prose p, .prose li { color: var(--fg); }
.prose h2 { font-size: 19px; margin: 28px 0 8px; }
.prose ul { padding-left: 20px; }
.note { color: var(--muted); font-size: 14px; }
footer.site { border-top: 1px solid var(--line); margin-top: 40px; padding: 24px 0 40px; font-size: 14px; color: var(--muted); }
footer.site .wrap { display: flex; gap: 16px; flex-wrap: wrap; }
footer.site a { color: var(--muted); }