:root {
  color-scheme: light;
  --paper: #f7f1d7;
  --ink: #151515;
  --blue: #163d8f;
  --red: #b8203a;
  --green: #2d7d46;
  --line: #151515;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    linear-gradient(90deg, rgba(22, 61, 143, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(22, 61, 143, 0.08) 1px, transparent 1px),
    var(--paper);
  background-size: 18px 18px;
}

body {
  min-height: 100vh;
  margin: 0;
  padding: 24px;
  color: var(--ink);
  font: 17px/1.5 "Courier New", Courier, monospace;
}

main {
  width: min(680px, 100%);
  padding: 22px;
  border: 3px double var(--line);
  background: rgba(255, 252, 238, 0.94);
  box-shadow: 8px 8px 0 rgba(21, 21, 21, 0.16);
}

h1 {
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line);
  color: var(--blue);
  font-size: clamp(2rem, 9vw, 3.6rem);
  line-height: 0.95;
  letter-spacing: 0;
  text-transform: uppercase;
}

p {
  margin: 0 0 12px;
}

strong {
  color: var(--red);
}

ul {
  margin: 18px 0;
  padding: 0;
  list-style: none;
}

li {
  margin: 8px 0;
}

li::before {
  content: ">> ";
  color: var(--green);
  font-weight: 700;
}

a {
  color: var(--blue);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

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

@media (min-width: 720px) {
  body {
    padding: 42px;
  }
}