:root {
  --bg: #08080f;
  --panel: rgba(255,255,255,.04);
  --border: rgba(255,255,255,.09);
  --text: #e7e8ee;
  --muted: #9a9db0;
  --dim: #6b6e82;
  --accent: #6366f1;
  --accent-soft: #a5b4fc;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "Apple SD Gothic Neo", "Segoe UI", sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
}
a { color: var(--accent-soft); text-decoration: none; }
a:hover { text-decoration: underline; }
nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(8,8,15,.75); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.nav-in { max-width: 760px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { font-weight: 800; font-size: 17px; letter-spacing: -.02em; color: var(--text); }
.logo span { color: var(--accent-soft); }
.nav-links { display: flex; gap: 24px; font-size: 13.5px; color: var(--muted); }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }
main { max-width: 760px; margin: 0 auto; padding: 56px 24px 96px; }
h1 { font-size: 30px; font-weight: 800; letter-spacing: -.02em; line-height: 1.3; margin-bottom: 8px; }
.meta { color: var(--dim); font-size: 13.5px; margin-bottom: 40px; }
.lead {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 18px 20px; margin-bottom: 40px; font-size: 15px; color: var(--muted);
}
.lead strong { color: var(--text); }
h2 { font-size: 18px; font-weight: 700; margin: 40px 0 12px; letter-spacing: -.01em; }
h3 { font-size: 15.5px; font-weight: 700; margin: 22px 0 8px; color: var(--text); }
p { margin-bottom: 12px; font-size: 15px; }
ol, ul { margin: 0 0 14px 22px; font-size: 15px; }
li { margin-bottom: 6px; }
li > ol, li > ul { margin-top: 6px; }
table { width: 100%; border-collapse: collapse; margin: 12px 0 20px; font-size: 14px; }
th, td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; vertical-align: top; }
th { background: var(--panel); color: var(--muted); font-weight: 600; white-space: nowrap; }
.note { color: var(--muted); font-size: 13.5px; }
footer { border-top: 1px solid var(--border); color: var(--dim); font-size: 13px; }
.foot-in { max-width: 760px; margin: 0 auto; padding: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.foot-in a { color: var(--dim); }
@media (max-width: 600px) {
  h1 { font-size: 24px; }
  .nav-links { gap: 16px; }
  th, td { padding: 8px; font-size: 13px; }
}