:root {
  --brand: #00594f;
  --text: #1b1f23;
  --surface: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  color: var(--text);
  background: var(--surface);
  font-family: Arial, Helvetica, sans-serif;
}

main {
  width: min(720px, calc(100% - 2rem));
  text-align: center;
}

img {
  width: min(520px, 86vw);
  height: auto;
}

a {
  color: var(--brand);
  font-weight: 700;
  text-underline-offset: 0.18em;
}

a:focus-visible {
  outline: 4px solid #ffbf47;
  outline-offset: 4px;
}