:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #5f5f66;
  --accent: #1f6feb;
  --border: #e6e6e9;
  --card: #f7f7f9;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14151a;
    --fg: #f1f1f3;
    --muted: #a4a4ac;
    --accent: #5b9dff;
    --border: #2a2b32;
    --card: #1c1d24;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
  text-decoration: none;
  color: var(--fg);
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}

.brand-name {
  font-weight: 700;
  font-size: 18px;
}

h1 {
  font-size: 28px;
  margin: 0 0 6px;
}

.updated {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 32px;
}

h2 {
  font-size: 19px;
  margin: 36px 0 12px;
}

p, li {
  font-size: 15.5px;
  color: var(--fg);
}

ul, ol {
  padding-left: 22px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 22px;
  margin: 20px 0;
}

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

.steps li {
  margin-bottom: 10px;
}

footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13.5px;
}

.nav-links {
  display: flex;
  gap: 16px;
  margin-bottom: 8px;
  font-size: 14px;
}