:root { color-scheme: light dark; }
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  color: #111;
  background: #f5f5f5;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 40px 22px 80px; }
header a.back {
  display: inline-block; margin-bottom: 24px; color: #2f7dff;
  text-decoration: none; font-weight: 600; font-size: 15px;
}
h1 { font-size: 30px; font-weight: 800; margin: 0 0 6px; letter-spacing: -0.02em; }
.updated { color: #888; font-size: 14px; margin: 0 0 28px; }
h2 { font-size: 19px; font-weight: 700; margin: 34px 0 10px; }
p, li { font-size: 16px; color: #333; }
a { color: #2f7dff; }
.note {
  background: #fff6d6; border: 1px solid #f0d97a; border-radius: 12px;
  padding: 14px 16px; font-size: 14px; color: #6b5600; margin: 0 0 28px;
}
.card-links { display: flex; flex-direction: column; gap: 12px; margin-top: 26px; }
.card-links a {
  display: flex; align-items: center; justify-content: space-between;
  background: #000; color: #fff; text-decoration: none;
  padding: 20px 22px; border-radius: 20px; font-weight: 600; font-size: 17px;
}
.card-links a span.arrow { opacity: .5; }
.logo { display: block; width: 96px; height: 96px; border-radius: 22px; margin: 0 0 14px; box-shadow: 0 6px 20px rgba(0,0,0,.18); }
.brand { font-weight: 800; font-size: 22px; letter-spacing: -0.02em; }
footer { margin-top: 60px; color: #999; font-size: 13px; }
@media (prefers-color-scheme: dark) {
  body { background: #0c0c0c; color: #eee; }
  h1 { color: #fff; } p, li { color: #cfcfcf; } h2 { color: #fff; }
  .note { background: #2a2410; border-color: #4a3f16; color: #e5cf7a; }
}