:root { --bg: #f6f4ff; --fg: #1d1a3a; --muted: #4f4b6e; --accent: #4b3fd6; --card: #ffffff; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #15132a; --fg: #eeecff; --muted: #b7b3d9; --accent: #a9a1ff; --card: #211e3d; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 1.15rem/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 42rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
h1 { font-size: 2rem; line-height: 1.25; margin: 0 0 0.5rem; }
h2 { font-size: 1.4rem; margin: 2rem 0 0.5rem; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.card { background: var(--card); border-radius: 1rem; padding: 1rem 1.25rem; margin: 1rem 0; }
.button {
  display: inline-block; background: var(--accent); color: var(--bg); text-decoration: none;
  padding: 0.75rem 1.5rem; border-radius: 0.75rem; font-weight: 700; min-height: 3.5rem; line-height: 2rem;
}
ul { padding-left: 1.25rem; }
.logo { border-radius: 22%; display: block; margin-bottom: 1rem; }