:root {
  color-scheme: light dark;
  --ink: #23243a;
  --muted: #5d6079;
  --ground: #f6f3fb;
  --card: #ffffff;
  --line: #e4e0ee;
  --accent: #6b78c7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eceaf6;
    --muted: #a9a8c0;
    --ground: #15162a;
    --card: #1e2038;
    --line: #2e3050;
    --accent: #a3b2f5;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 40px 20px 64px;
  background: var(--ground);
  color: var(--ink);
  font: 16px/1.7 -apple-system, "Pretendard", "Apple SD Gothic Neo", system-ui, sans-serif;
}
main { max-width: 680px; margin: 0 auto; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 28px; }
header img { width: 72px; height: 72px; border-radius: 16px; }
h1 { font-size: 26px; line-height: 1.25; margin: 0; }
header p { margin: 2px 0 0; color: var(--muted); }
h2 { font-size: 19px; margin: 32px 0 8px; }
section {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 8px 24px 20px;
  margin-bottom: 20px;
}
a { color: var(--accent); }
ul { padding-left: 20px; }
li { margin: 4px 0; }
nav { margin: 0 0 24px; display: flex; gap: 16px; flex-wrap: wrap; }
footer { color: var(--muted); font-size: 14px; margin-top: 32px; }