:root {
  color-scheme: light dark;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

body {
  margin: 0;
  background: #f8fafc;
  color: #1e293b;
}

main {
  box-sizing: border-box;
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 40px 24px 56px;
}

h1,
h2 {
  color: #4648d4;
  line-height: 1.25;
}

h1 {
  margin: 0 0 8px;
}

h2 {
  margin-top: 32px;
}

a {
  color: #3f40b9;
}

.updated,
.note {
  color: #475569;
}

.card {
  margin-top: 24px;
  padding: 20px;
  border: 1px solid #c7c4d7;
  border-radius: 16px;
  background: #ffffff;
}

.action {
  display: inline-block;
  margin-top: 8px;
  padding: 12px 16px;
  border-radius: 10px;
  background: #4648d4;
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
}

@media (prefers-color-scheme: dark) {
  body {
    background: #081425;
    color: #d8e3fb;
  }

  h1,
  h2,
  a {
    color: #c0c1ff;
  }

  .updated,
  .note {
    color: #c7c4d7;
  }

  .card {
    border-color: #464554;
    background: #152031;
  }

  .action {
    background: #c0c1ff;
    color: #1000a9;
  }
}