:root {
  --color-bg: #0b0f14;
  --color-text-primary: #c6f6d5;
  --color-accent: #7ee787;
  --color-accent-muted: #9ae6b4;
  --color-link: #1fdf64;
  --color-link-disabled: #3a5f4b;
}

body {
  font-family: "JetBrains Mono", "Fira Code", "Source Code Pro", "Courier New",
    ui-monospace, monospace;
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text-primary);
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

header {
  margin-bottom: 2rem;
}

header::after {
  content: "";
  display: block;
  margin-top: 1.5rem;
  width: 100%;
  height: 1px;
  background: rgba(126, 231, 135, 0.15);
}

h1 {
  font-size: 2.2rem;
  margin: 0 0 0.75rem 0;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

h2 {
  font-size: 1.6rem;
  margin: 1.5rem 0 1rem;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

h3 {
  font-size: 1.3rem;
  margin: 1.5rem 0 1rem;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

a {
  color: var(--color-accent);
}

p.subtitle {
  font-size: 1rem;
  color: var(--color-accent-muted);
  opacity: 0.85;
}

ul {
  max-width: 65ch;
  list-style: none;
  padding: 0;
}

ul li {
  line-height: 1.4;
  margin-bottom: 1.25rem;
  position: relative;
  padding-left: 1.5rem;
}

ul li::before {
  content: ">";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

ul li a {
  text-decoration: none;
  font-size: 1.05rem;
  color: var(--color-link);
}

ul li a:hover {
  text-decoration: underline;
}

main p {
  line-height: 1.7;
  max-width: 65ch;
}

footer {
  margin-top: 4rem;
  font-size: 0.8rem;
  opacity: 0.6;
}

footer p::before {
  content: "# ";
}

em {
  font-weight: bold
}

.references {
  font-size: 1px;
  color: var(--color-bg);
  user-select: none;
}

.quote {
  max-width: 65ch;
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid #7ee787;
  background: rgba(126, 231, 135, 0.05);
  color: #c6f6d5;
  font-style: italic;
  line-height: 1.6;
}

.quote cite {
  display: block;
  margin-top: 0.75rem;
  font-style: normal;
  color: #9ae6b4;
  opacity: 0.85;
  font-size: 0.9rem;
}

.back-link {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--color-accent-muted);
  opacity: 0.8;
}

.back-link:hover {
  opacity: 1;
}

.disabled-link {
  pointer-events: none;
  color: var(--color-link-disabled);
}