:root {
  color-scheme: light;
  --ink: #17211b;
  --muted: #58635c;
  --surface: #f4f6f1;
  --accent: #176b4a;
  --line: #d8ded8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

header,
main,
footer {
  width: min(68rem, calc(100% - 2rem));
  margin-inline: auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--line);
}

a {
  color: var(--accent);
}

.brand {
  color: var(--ink);
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
}

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

main {
  min-height: 65vh;
  padding-block: clamp(4rem, 10vw, 8rem);
}

h1 {
  max-width: 16ch;
  margin: 0 0 1rem;
  font-size: clamp(2.25rem, 7vw, 5rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

p {
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.1rem;
}

footer {
  padding-block: 1.5rem 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 36rem) {
  header {
    align-items: flex-start;
    flex-direction: column;
  }
}