:root {
  color-scheme: dark;
  --bg: #14161a;
  --panel: #1c1f24;
  --ink: #d7dbe0;
  --muted: #8b929c;
  --line: #2a2e35;
  --accent: #7fb268;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15.5px/1.7 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

header {
  max-width: 44rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 1.25rem;
}

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 1.25rem 2rem;
}

h1 {
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  margin: 0;
}

h2 {
  font-size: 1.25rem;
  margin: 1.75rem 0 0.75rem;
}

.sub {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0.35rem 0 0;
}

p { margin: 0 0 1rem; }

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; }
a:hover { border-bottom-color: var(--accent); }

pre {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  font: 0.86rem/1.55 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color: #b8c2cc;
}

code {
  font: 0.9em ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color: #a8c7a0;
}

ul.index {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

ul.index li {
  padding: 0.9rem 1rem;
  margin-bottom: 0.6rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
}

ul.index a {
  font-weight: 600;
  font-size: 1.02rem;
}

ul.index .meta {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

footer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1rem 1.25rem 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.83rem;
}