:root {
  color-scheme: light;
  color: #203a35;
  background: #f9f7f0;
  font: 1rem/1.75 system-ui, sans-serif;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
}

main {
  width: min(34rem, 100% - 3rem);
  padding-block: 2rem;
}

.brand {
  color: #176452;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
}

h1 {
  font-size: clamp(1.75rem, 5vw, 3rem);
  line-height: 1.35;
  margin: 0.5rem 0 1rem;
}

a { color: #176452; }
a:focus-visible { outline: 2px solid #176452; outline-offset: 4px; }