:root {
  --ink: #171717;
  --paper: #faf9f6;
  --rule: #d9d6ce;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
}

main {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  min-height: 100vh;
}

nav {
  padding: 3rem 2rem;
  border-right: 1px solid var(--rule);
}

.site-title {
  display: block;
  margin-bottom: 3rem;
  font-weight: 700;
  text-decoration: none;
}

nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

nav li + li {
  margin-top: 0.75rem;
}

nav a {
  color: inherit;
  text-underline-offset: 0.2em;
}

article {
  align-self: start;
  max-width: 42rem;
  padding: 9rem clamp(3rem, 10vw, 10rem);
}

h1 {
  margin: 0 0 2rem;
  font-size: 1.2rem;
  line-height: 1.75;
  font-weight: 700;
}

p {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.75;
}

@media (max-width: 640px) {
  main {
    display: block;
  }

  nav {
    padding: 1.5rem;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .site-title {
    margin-bottom: 1.25rem;
  }

  article {
    padding: 4rem 1.5rem;
  }
}