:root {
  --bg: #fbf7ff;
  --ink: #1d1530;
  --muted: #5d5470;
  --card: #ffffff;
  --line: #e7def5;
  --accent: #7c3aed;
  --accent-2: #06b6d4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #120d1d;
    --ink: #f1ecfa;
    --muted: #b3a9c6;
    --card: #1b1429;
    --line: #2f2542;
    --accent: #a78bfa;
    --accent-2: #22d3ee;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 40px; }
.logo {
  width: 44px; height: 44px; border-radius: 12px; flex: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; color: #fff; font-weight: 800;
}
header a { color: var(--ink); text-decoration: none; font-weight: 700; }
nav { margin-left: auto; display: flex; gap: 16px; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--accent); }
h1 { font-size: clamp(30px, 6vw, 44px); line-height: 1.15; margin: 0 0 16px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
p, li { color: var(--muted); }
strong { color: var(--ink); }
a { color: var(--accent); }
.hero p { font-size: 19px; max-width: 60ch; }
.btn {
  display: inline-block; margin-top: 12px; padding: 12px 20px; border-radius: 999px;
  background: var(--accent); color: #fff; text-decoration: none; font-weight: 700;
}
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 20px 24px; margin-top: 32px;
}
.small { font-size: 14px; }
.yt-badge { display: inline-block; margin-top: 8px; }
.yt-badge img { display: block; height: 29px; width: auto; }
footer { margin-top: 48px; border-top: 1px solid var(--line); padding-top: 16px; font-size: 14px; color: var(--muted); }