:root {
  color-scheme: light;
  --bg: #f6f4ef;
  --fg: #1b1b18;
  --muted: #5c5a55;
  --accent: #0b132b;
  --link: #1d4ed8;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
}

header,
main,
footer {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
}

header {
  padding-bottom: 0;
}

header a.brand {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

nav {
  margin-top: 0.75rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

nav a,
footer a,
article a {
  color: var(--link);
}

h1 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.2rem;
  margin: 2rem 0 0.6rem;
}

h3 {
  font-size: 1.05rem;
  margin: 1.4rem 0 0.4rem;
}

p,
li {
  color: var(--fg);
}

.meta {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

ul {
  padding-left: 1.2rem;
}

footer {
  color: var(--muted);
  font-size: 0.9rem;
  padding-top: 0;
}