:root {
  color-scheme: light;
  --navy: #003087;
  --blue: #1b6fbe;
  --ink: #172033;
  --muted: #596579;
  --line: #dce3ed;
  --soft: #f5f8fc;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}
header {
  background: var(--navy);
  color: white;
  padding: 28px 20px;
}
header div, main, footer { max-width: 820px; margin: 0 auto; }
header a { color: white; text-decoration: none; }
.brand { font-size: 26px; font-weight: 900; letter-spacing: 4px; }
.tagline { opacity: .75; font-size: 12px; letter-spacing: 1.5px; }
main {
  background: white;
  margin-top: 32px;
  margin-bottom: 32px;
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(0, 48, 135, .08);
}
h1 { color: var(--navy); font-size: 34px; line-height: 1.2; margin: 0 0 8px; }
h2 { color: var(--navy); font-size: 21px; margin-top: 32px; }
h3 { font-size: 17px; margin-top: 24px; }
.updated, .muted { color: var(--muted); }
.notice {
  background: #eef5ff;
  border-left: 4px solid var(--blue);
  border-radius: 8px;
  padding: 16px 18px;
  margin: 24px 0;
}
a { color: var(--blue); }
li { margin: 8px 0; }
table { width: 100%; border-collapse: collapse; }
th, td { border: 1px solid var(--line); padding: 10px; text-align: left; vertical-align: top; }
th { background: var(--soft); }
.button {
  display: inline-block;
  background: var(--navy);
  color: white;
  padding: 12px 18px;
  border-radius: 9px;
  text-decoration: none;
  font-weight: 700;
}
footer { padding: 0 20px 36px; color: var(--muted); font-size: 13px; }
footer a { margin-right: 16px; }
@media (max-width: 640px) {
  main { margin: 0; border: 0; border-radius: 0; padding: 28px 20px; }
  h1 { font-size: 29px; }
  table { font-size: 14px; }
}