:root {
  color-scheme: light dark;
  --bg: #fbfbfa;
  --surface: #ffffff;
  --text: #1c1c1a;
  --muted: #5f5f5a;
  --line: #e4e3df;
  --accent: #1f5f8b;
  --measure: 42rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141413;
    --surface: #1c1c1b;
    --text: #ecebe7;
    --muted: #a3a29c;
    --line: #2f2f2c;
    --accent: #7fb5dc;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    16px/1.7 -apple-system,
    BlinkMacSystemFont,
    'Apple SD Gothic Neo',
    'Noto Sans KR',
    'Segoe UI',
    sans-serif;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

a {
  color: var(--accent);
}

header,
main,
footer {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 16px;
}

header {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: baseline;
  justify-content: space-between;
  padding-top: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

header .name {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

nav {
  display: flex;
  gap: 16px;
  font-size: 0.95rem;
}

main {
  padding-top: 24px;
  padding-bottom: 48px;
}

h1 {
  font-size: 1.75rem;
  line-height: 1.3;
  margin: 16px 0 8px;
}

h2 {
  font-size: 1.2rem;
  margin: 40px 0 8px;
}

h3 {
  font-size: 1.02rem;
  margin: 24px 0 4px;
}

.lead {
  font-size: 1.1rem;
  color: var(--muted);
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.lang-switch {
  font-size: 0.9rem;
}

section[lang='en'] {
  margin-top: 64px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: 8px 0;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 8px;
  border-bottom: 1px solid var(--line);
}

.table-wrap {
  overflow-x: auto;
}

.note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 16px;
}

footer {
  padding-bottom: 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

footer nav {
  margin-top: 8px;
}