:root {
  color-scheme: dark;
  font-family: "Segoe UI", Arial, sans-serif;
  background: #071018;
  color: #e3e8ec;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #071018;
  color: #e3e8ec;
}

header {
  border-bottom: 1px solid rgba(151, 173, 194, 0.18);
}

nav,
main,
footer {
  width: min(760px, calc(100% - 40px));
  margin: 0 auto;
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  color: #e3e8ec;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.back-link,
footer a {
  color: #9eabb6;
  font-size: 13px;
}

main { padding: 72px 0 80px; }

.kicker {
  color: #9f674d;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 10px 0 18px;
  color: #e3e8ec;
  font-size: clamp(38px, 7vw, 62px);
  letter-spacing: -0.045em;
}

h2 {
  margin: 40px 0 12px;
  color: #d7dee4;
  font-size: 18px;
}

p,
li {
  color: #9dabb7;
  font-size: 15px;
  line-height: 1.75;
}

ul { padding-left: 20px; }

.updated {
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(151, 173, 194, 0.18);
  color: #667888;
  font-size: 12px;
}

footer {
  display: flex;
  justify-content: space-between;
  padding: 24px 0 36px;
  border-top: 1px solid rgba(151, 173, 194, 0.18);
  color: #667888;
  font-size: 12px;
}

@media (max-width: 560px) {
  main { padding-top: 48px; }
  footer { gap: 12px; flex-direction: column; }
}