:root {
  color-scheme: light dark;
  --canvas: #f3f5fb;
  --surface: #fff;
  --ink: #141f38;
  --muted: #475570;
  --line: #d7dfed;
  --accent: #2545be;
  --hero: #101b43;
  --hero-text: #eef2ff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --canvas: #101528;
    --surface: #18203a;
    --ink: #eef2ff;
    --muted: #bfcae2;
    --line: #374261;
    --accent: #becaff;
    --hero: #1a2857;
  }
}

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font: 1rem/1.65 system-ui, -apple-system, sans-serif;
}
.wrap {
  width: min(100% - 2rem, 48rem);
  margin-inline: auto;
}
header {
  background: var(--hero);
  color: var(--hero-text);
  padding-block: clamp(2rem, 8vw, 4rem);
}
.app {
  margin: 0;
  color: #c9d4ff;
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .045em;
}
h1 {
  margin: .45rem 0;
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.1;
}
.meta { margin: 0; }
main { padding-block: 2rem; }
article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  padding: clamp(1rem, 5vw, 2.25rem);
}
section + section {
  margin-top: 1.7rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}
h2 {
  margin: 0 0 .5rem;
  font-size: 1.22rem;
  line-height: 1.3;
}
p { margin: 0 0 .8rem; }
p:last-child, ul:last-child { margin-bottom: 0; }
ul {
  margin: .5rem 0 .8rem;
  padding-inline-start: 1.4rem;
}
li + li { margin-top: .55rem; }
a {
  color: var(--accent);
  text-underline-offset: .17em;
  overflow-wrap: anywhere;
}
footer {
  color: var(--muted);
  font-size: .9rem;
  padding-bottom: 2rem;
}