:root {
  --bg: #fafafa;
  --fg: #1a1a1a;
  --muted: #555;
  --accent: #2563eb;
  --border: #e5e7eb;
  --card: #fff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
}

.wrap {
  max-width: 52rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--card);
  padding: 1rem 0;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-header h1 {
  margin: 0;
  font-size: 1.25rem;
}

.site-header h1 a {
  color: inherit;
  text-decoration: none;
}

.site-header nav a {
  margin-left: 1rem;
  color: var(--accent);
  text-decoration: none;
}

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

.hero {
  padding: 3rem 0 2rem;
}

.tagline {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
}

.hero h2 {
  font-size: 2rem;
  margin: 0 0 1rem;
  line-height: 1.2;
}

.lead {
  font-size: 1.125rem;
  color: var(--muted);
}

.cta {
  margin-top: 1.75rem;
}

.button {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  background: var(--accent);
  color: #fff !important;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
  margin-right: 0.75rem;
}

.button.secondary {
  background: transparent;
  color: var(--accent) !important;
  border: 1px solid var(--accent);
}

.grid {
  display: grid;
  gap: 1.5rem;
  margin: 2rem 0;
}

@media (min-width: 640px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

.grid article {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}

.grid h3 {
  margin-top: 0;
}

.layers,
.status {
  margin: 2.5rem 0;
}

.layers ol {
  padding-left: 1.25rem;
}

.layers li {
  margin: 0.35rem 0;
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding: 2rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

code {
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.9em;
  background: #f3f4f6;
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

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