:root { --bg: #ffffff; --fg: #1d1c1d; --muted: #616061; --accent: #4a154b; --accent-fg: #ffffff; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #1a1d21; --fg: #e8e8e8; --muted: #a0a0a0; --accent: #e0b3e3; --accent-fg: #1a1d21; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 36rem; margin: 0 auto; padding: 4rem 16px; }
h1 { font-size: 2rem; margin: 0 0 1rem; }
.button { display: inline-block; padding: .7rem 1.2rem; border-radius: 8px; background: var(--accent); color: var(--accent-fg); text-decoration: none; font-weight: 600; }
.small { color: var(--muted); font-size: .9rem; }