:root {
  --page-width: 1024px;
}

body {
  font-family: system-ui;
  background: #000;
  color: #fff;
}

a {
  color: #cf0;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  border-bottom: 1px solid #333;

  max-width: var(--page-width);
  margin: 0 auto;
}

main {
  padding: 1rem;
  max-width: var(--page-width);
  margin: 0 auto;
  min-height: 100dvh;
}

footer {
  padding: 1rem;
  border-top: 1px solid #333;
  text-align: center;

  max-width: var(--page-width);
  margin: 0 auto;
}