:root {
  --bg: #08090b;
  --surface: #101317;
  --border: #1e242c;
  --text: #d8dee6;
  --muted: #8b95a3;
  --accent: #22d3ee;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

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

body {
  margin: 0;
  padding: 0 1.5rem;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 5rem 0 6rem;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 2.5rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  margin: 3.5rem 0 1rem;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
}

.lede {
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: 1.1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.card {
  display: block;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}

.card:hover {
  border-color: var(--accent);
  text-decoration: none;
  transform: translateY(-2px);
}

.card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  color: var(--accent);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.logo {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  margin: 0 auto 2rem;
  /* The artwork ships on a solid black plate; screen drops it onto the page. */
  mix-blend-mode: screen;
}

pre {
  margin: 0;
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.5;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
}

p code,
li code {
  padding: 0.1em 0.4em;
  border-radius: 5px;
  background: var(--surface);
  color: var(--accent);
}

.note {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.feature {
  margin: 0 0 1.75rem;
}

.feature h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
}

footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.version {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.85rem;
}

.sep {
  font-size: 0.85rem;
  line-height: 1;
  opacity: 0.75;
}

.back {
  display: inline-block;
  margin-bottom: 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}