:root {
  --bg: #F2F0F7;
  --card: #FFFFFF;
  --ink: #2B2733;
  --muted: #5E5870;
  --line: #E0DCEB;
  --accent: #6A3FE0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121019;
    --card: #1E1A2A;
    --ink: #F1EEF8;
    --muted: #B3ABC6;
    --line: #302B40;
    --accent: #8F6BFF;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Rounded", "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 24px 16px 64px; }
nav { display: flex; gap: 16px; font-weight: 600; margin-bottom: 24px; flex-wrap: wrap; }
nav a { color: var(--accent); text-decoration: none; }
nav a.home { color: var(--ink); margin-right: auto; }
h1 { font-size: 34px; line-height: 1.15; margin: 8px 0 12px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 20px; margin: 16px 0; }
.hero { width: 100%; border-radius: 20px; display: block; }
a { color: var(--accent); }
footer { margin-top: 48px; font-size: 14px; color: var(--muted); }