:root {
  --ink: #0e0e0e;
  --yellow: #ffd400;
  --parchment: #f3e9d2;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--parchment);
  color: var(--ink);
  font: 18px/1.6 Georgia, "Times New Roman", serif;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 2rem;
}

h1, h2, .button, footer {
  font-family: "Helvetica Neue", Arial, sans-serif;
}

h1 { font-size: 2.4rem; line-height: 1.1; margin: 0.5rem 0; }
h2 { font-size: 1.3rem; margin-top: 2.5rem; }
.tagline { font-style: italic; margin-top: 0; }
.avatar { border-radius: 50%; display: block; }
a { color: var(--ink); }

.button {
  display: inline-block;
  background: var(--ink);
  color: var(--yellow);
  font-weight: 700;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  text-decoration: none;
}

footer {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1rem 1.25rem 3rem;
  font-size: 0.9rem;
}