:root {
  color-scheme: light;
  --bg: #f8faf7;
  --surface: #ffffff;
  --text: #0f172a;
  --text-muted: #475569;
  --brand: #2f6fed;
  --border: #e2e8f0;
}

* { box-sizing: border-box; }

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

.wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--text);
  margin-bottom: 40px;
}

.brand::before {
  content: "";
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--brand);
}

h1 {
  font-size: 1.9rem;
  margin: 0 0 8px;
}

h2 {
  font-size: 1.15rem;
  margin: 2.2em 0 0.6em;
}

.tagline {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin: 0 0 36px;
}

.updated {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0 0 32px;
}

p, li { color: var(--text); }
p { margin: 0.9em 0; }

ol, ul { padding-left: 1.3em; }
li { margin: 0.4em 0; }

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 24px;
  margin: 28px 0;
}

.yt-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.yt-badge-icon {
  display: inline-flex;
}

.links {
  display: flex;
  gap: 20px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
}

footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}