:root {
  --bg: #f4f4f6;
  --card: #ffffff;
  --text: #111111;
  --sub: #6b6b70;
  --line: #ededf0;
  --accent: #5b5bd6;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111114; --card: #1b1b20; --text: #f2f2f4; --sub: #a0a0a8; --line: #2a2a31; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.65 -apple-system, system-ui, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  -webkit-font-smoothing: antialiased;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 20px 64px; }
header.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 28px; }
header.brand a { color: inherit; text-decoration: none; }
.wordmark img { display: block; height: 28px; width: auto; }
h1 { font-size: 26px; line-height: 1.3; margin: 0 0 8px; }
h2 { font-size: 18px; margin: 32px 0 8px; }
p, li { color: var(--text); }
.sub { color: var(--sub); }
.card { background: var(--card); border-radius: 16px; padding: 20px; margin: 16px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--sub); font-weight: 600; }
a { color: var(--accent); }
.button {
  display: inline-block; padding: 14px 28px; border-radius: 26px; background: var(--accent); color: #fff;
  text-decoration: none; font-weight: 600;
}
.button.secondary { background: transparent; color: var(--sub); padding: 10px 16px; }
footer { margin-top: 48px; color: var(--sub); font-size: 13px; }
footer a { color: var(--sub); margin-right: 14px; }