:root {
  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  background: #f4f1ff;
  color: #171321;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 0%, rgba(117, 87, 255, .22), transparent 34rem),
    linear-gradient(180deg, #faf8ff 0%, #f1edff 100%);
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 80px;
}

nav { margin-bottom: 40px; }

a { color: #5b3fce; }

.brand {
  color: inherit;
  font-size: 1.15rem;
  font-weight: 750;
  text-decoration: none;
}

.card {
  border: 1px solid rgba(84, 62, 150, .16);
  border-radius: 28px;
  padding: clamp(24px, 5vw, 48px);
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 24px 70px rgba(57, 39, 111, .12);
  backdrop-filter: blur(18px);
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2.25rem, 7vw, 4rem);
  letter-spacing: -.045em;
  line-height: .98;
}

h2 { margin-top: 2rem; font-size: 1.2rem; }

p, li { line-height: 1.65; }

.eyebrow, .updated {
  color: #665d79;
  font-size: .92rem;
}

.links {
  display: grid;
  gap: 12px;
  margin-top: 32px;
}

.links a {
  display: block;
  padding: 16px 18px;
  border-radius: 16px;
  background: #ede8ff;
  font-weight: 650;
  text-decoration: none;
}

.notice {
  margin: 24px 0;
  padding: 14px 16px;
  border-radius: 14px;
  background: #fff4d6;
  color: #563c00;
}

@media (prefers-color-scheme: dark) {
  :root { background: #100d17; color: #f7f3ff; }
  body { background: radial-gradient(circle at 15% 0%, #312257, transparent 34rem), #100d17; }
  .card { background: rgba(29, 23, 42, .88); border-color: rgba(210, 196, 255, .15); }
  a { color: #c8b9ff; }
  .eyebrow, .updated { color: #bdb2cf; }
  .links a { background: #2a213d; }
}