:root {
  color-scheme: dark;
  font-family: Inter, "Helvetica Neue", system-ui, sans-serif;
  background: #0a0e12;
  color: #e9edf0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 85% 8%, rgba(88, 144, 152, 0.15), transparent 28rem),
    #0a0e12;
}

header,
main,
footer {
  width: min(46rem, calc(100% - 2.5rem));
  margin-inline: auto;
}

header {
  padding: 2rem 0 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: #e9edf0;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand img {
  width: 2.5rem;
  height: 2.5rem;
}

main {
  padding: 2.5rem 0 4rem;
}

h1,
h2 {
  font-family: "Space Grotesk", Inter, system-ui, sans-serif;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(2.2rem, 7vw, 4rem);
  line-height: 1;
  letter-spacing: -0.035em;
}

h2 {
  margin: 2.5rem 0 0.7rem;
  color: #9fc6cd;
  font-size: 1.15rem;
}

p,
li {
  color: #aeb8c0;
  font-size: 1rem;
  line-height: 1.75;
}

ul {
  padding-left: 1.25rem;
}

a {
  color: #9fc6cd;
}

a:focus-visible {
  outline: 2px solid #9fc6cd;
  outline-offset: 3px;
}

.updated,
.notice {
  color: #82909b;
  font-size: 0.9rem;
}

.notice {
  margin: 1.5rem 0 2.5rem;
  padding: 1rem 1.1rem;
  border-left: 2px solid #589098;
  background: rgba(88, 144, 152, 0.08);
}

footer {
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid rgba(233, 237, 240, 0.13);
  display: flex;
  gap: 1rem;
  font-size: 0.9rem;
}