:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #15171c;
  --muted: #5b6170;
  --primary: #2d55d8;
  --line: #e2e5ec;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #181b21;
    --text: #eceef3;
    --muted: #9aa1b2;
    --primary: #8ea7ff;
    --line: #2a2f39;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.mark { width: 40px; height: 40px; flex: none; }
h1 { font-size: 28px; line-height: 1.25; margin: 0; }
h2 { font-size: 20px; margin: 32px 0 8px; }
h3 { font-size: 17px; margin: 20px 0 4px; }
a { color: var(--primary); }
.muted { color: var(--muted); }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 4px 20px 16px;
  margin-top: 16px;
}
nav.lang { margin: 8px 0 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 8px 6px; border-top: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
.button {
  display: inline-block;
  background: var(--primary);
  color: var(--surface);
  border-radius: 999px;
  padding: 12px 24px;
  text-decoration: none;
  font-weight: 600;
}