:root {
  color-scheme: dark;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  background: #090d16;
  color: #f3f5fa;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(ellipse at 78% 0, #19243b 0, #090d16 42rem);
  line-height: 1.7;
}

a {
  color: #b6cbff;
  text-underline-offset: 0.2em;
}

.site-header,
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(100% - 2rem, 68rem);
  margin: 0 auto;
  padding: 1.4rem 0;
}

.brand {
  color: #fff;
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-decoration: none;
}

.back-link,
footer a {
  font-size: 0.9rem;
}

main {
  width: min(100% - 2rem, 48rem);
  margin: 5rem auto 6rem;
}

.eyebrow {
  color: #9ab5fa;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

h1 {
  margin: 0.5rem 0;
  font-size: clamp(2.25rem, 7vw, 4rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.updated {
  color: #a5afc3;
  font-size: 0.9rem;
}

.intro {
  margin: 2rem 0 3rem;
  color: #dce3f2;
  font-size: 1.12rem;
}

section {
  margin: 2.5rem 0;
  padding-top: 1.5rem;
  border-top: 1px solid #283247;
}

h2 {
  margin: 0 0 1rem;
  font-size: 1.35rem;
  line-height: 1.3;
}

p,
li {
  color: #c5ccda;
}

li + li {
  margin-top: 0.7rem;
}

strong {
  color: #f4f6fb;
}

footer {
  border-top: 1px solid #283247;
  color: #a5afc3;
}

@media (max-width: 36rem) {
  .site-header,
  footer {
    align-items: flex-start;
  }

  main {
    margin-top: 3rem;
  }
}