:root {
  --bg: #0a0a12;
  --accent: #33ffff;
  --text: #eef;
  --card: #12121c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "JetBrains Mono", "Fira Code", ui-monospace, monospace;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header,
footer {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(51, 255, 255, 0.25);
}

footer {
  border-top: 1px solid rgba(51, 255, 255, 0.25);
  border-bottom: none;
  margin-top: auto;
}

.subtitle {
  opacity: 0.75;
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
}

main {
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
  max-width: 720px;
}

.card {
  background: var(--card);
  border: 1px solid rgba(51, 255, 255, 0.2);
  border-radius: 10px;
  padding: 1rem 1.25rem;
}

.card h2 {
  margin-top: 0;
  color: var(--accent);
  font-size: 1rem;
  letter-spacing: 0.04em;
}

dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0.35rem 1rem;
  margin: 0;
}

dt {
  opacity: 0.65;
}

ol {
  margin: 0;
  padding-left: 1.25rem;
}

li {
  margin: 0.35rem 0;
}