:root {
  color-scheme: light dark;
  --background: #f6f7f9;
  --surface: #ffffff;
  --text: #172033;
  --muted: #5e6879;
  --accent: #3157c8;
  --border: #dce1e8;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  line-height: 1.65;
}

main {
  width: min(46rem, calc(100% - 2rem));
  margin: 3rem auto;
  padding: clamp(1.5rem, 5vw, 3rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: 0 1rem 3rem rgb(20 30 50 / 8%);
}

h1,
h2 {
  line-height: 1.2;
}

h1 {
  margin-top: 0;
  font-size: clamp(2rem, 7vw, 3.2rem);
  letter-spacing: -0.04em;
}

h2 {
  margin-top: 2rem;
  font-size: 1.2rem;
}

p,
li {
  max-width: 70ch;
}

a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

.eyebrow,
.updated {
  color: var(--muted);
}

.eyebrow {
  margin-bottom: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-top: 2rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #10141d;
    --surface: #171d28;
    --text: #edf1f7;
    --muted: #aab3c2;
    --accent: #91adff;
    --border: #2e3746;
  }
}