:root {
  --bg: #f4f3f8;
  --surface: #ffffff;
  --text: #16151c;
  --text-secondary: #6b6878;
  --hero: #7b61ff;
  --border: #e6e4ee;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0c10;
    --surface: #17161d;
    --text: #f3f2f7;
    --text-secondary: #a19eae;
    --hero: #6a4ff5;
    --border: #26252e;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 56px 20px 80px;
}

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

.hero {
  background: var(--hero);
  color: #fff;
  border-radius: 28px;
  padding: 32px 28px;
  display: flex;
  gap: 20px;
  align-items: center;
}

.hero img {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  flex-shrink: 0;
}

.hero h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.25;
}

.hero p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.78);
}

.card {
  background: var(--surface);
  border-radius: 24px;
  padding: 24px 28px;
  margin-top: 16px;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 17px;
}

.card p, .card li {
  color: var(--text-secondary);
  margin: 0;
}

.card ul { margin: 0; padding-left: 20px; }

.links {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  font-size: 15px;
}

.doc h1 { font-size: 26px; margin: 0 0 4px; }
.doc .meta { color: var(--text-secondary); margin: 0 0 32px; font-size: 14px; }
.doc h2 { font-size: 18px; margin: 36px 0 8px; }
.doc p, .doc li { color: var(--text-secondary); }
.doc ul { padding-left: 20px; }

.doc table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 8px 0;
}

.doc th, .doc td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

.doc th { color: var(--text); font-weight: 600; }
.doc td { color: var(--text-secondary); }

footer {
  margin-top: 48px;
  color: var(--text-secondary);
  font-size: 13px;
}