:root {
  --text: #1a1a1a;
  --muted: #5c5c5c;
  --bg: #fafafa;
  --card: #ffffff;
  --border: #e8e8e8;
  --link: #2563eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

.wrap {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
}

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

.prose h2 {
  font-size: 1.125rem;
  margin: 1.75rem 0 0.5rem;
}

.prose h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.25rem 0 0.5rem;
}

.prose p {
  margin: 0 0 1rem;
}

.prose ul {
  margin: 0 0 1rem;
  padding-left: 1.35rem;
}

.prose li {
  margin-bottom: 0.35rem;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.75rem 0;
}

.prose a {
  color: var(--link);
}

.placeholder {
  background: #fffbeb;
  border: 1px solid #fcd34d;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  color: #92400e;
}

nav.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-top: 1rem;
}

nav.links a {
  color: var(--link);
  text-decoration: none;
  font-weight: 500;
}

nav.links a:hover {
  text-decoration: underline;
}

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--muted);
}