:root {
  --paper: #e6e4dc;
  --ink: #1a2332;
  --rule: #2f4a3c;
  --muted: #4e564f;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--paper);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.55;
}

main {
  width: min(40rem, calc(100% - 3rem));
  margin: 0;
  padding: clamp(3.5rem, 12vh, 7.5rem) 0 clamp(4rem, 10vh, 6rem);
  padding-left: clamp(1.5rem, 7vw, 6.5rem);
}

.mark {
  display: block;
  width: 4.75rem;
  height: 4.75rem;
  margin: 0 0 2.25rem;
  color: var(--rule);
}

h1 {
  margin: 0;
  padding-bottom: 1.35rem;
  border-bottom: 1px solid var(--rule);
  font-family: "Bodoni Moda", "Times New Roman", serif;
  font-optical-sizing: auto;
  font-weight: 500;
  font-size: clamp(3.4rem, 8vw, 5.75rem);
  line-height: 0.9;
  letter-spacing: -0.025em;
}

.letter {
  max-width: 38rem;
  padding-top: 1.75rem;
}

p {
  margin: 0 0 1.15rem;
}

.reach {
  margin-top: 2rem;
  color: var(--muted);
}

a {
  color: var(--ink);
  font-weight: 500;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--rule);
}

a:focus-visible {
  outline: 2px solid var(--rule);
  outline-offset: 3px;
}

@media (max-width: 640px) {
  body {
    font-size: 1.0625rem;
  }

  main {
    width: min(40rem, calc(100% - 2.5rem));
    padding-top: 2.75rem;
    padding-left: 1.25rem;
  }

  .mark {
    width: 3.5rem;
    height: 3.5rem;
    margin-bottom: 1.75rem;
  }

  h1 {
    padding-bottom: 1rem;
  }
}

@media (prefers-reduced-motion: no-preference) {
  h1 {
    animation: name-in 700ms ease both;
  }
}

@keyframes name-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}