/* Colors & layout */
:root {
  --black: #000;
  --white: #fff;
  --max-width: 960px;
}

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Header & Footer */
.site-header,
.site-footer {
  background-color: var(--black);
  color: var(--white);
  padding: 1rem 0;
}
.site-header .logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--white);
  text-decoration: none;
}
.site-header nav a {
  margin-left: 1rem;
  color: var(--white);
  text-decoration: none;
}
.site-footer p {
  text-align: center;
  font-size: 0.9rem;
}