:root {
  --text: #1a1a2e;
  --bg: #fafafa;
  --accent: #2563eb;
  --muted: #6b7280;
  --border: #e5e7eb;
  --surface: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e5e7eb;
    --bg: #111827;
    --accent: #60a5fa;
    --muted: #9ca3af;
    --border: #374151;
    --surface: #1f2937;
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

h1 { font-size: 1.75rem; margin-bottom: 0.5rem; }
h2 { font-size: 1.25rem; margin-top: 2rem; margin-bottom: 0.5rem; }
h3 { font-size: 1.1rem; margin-top: 1.5rem; margin-bottom: 0.25rem; }

p, ul { margin-bottom: 1rem; }
ul { padding-left: 1.5rem; }

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

.updated { color: var(--muted); font-size: 0.9rem; margin-bottom: 2rem; }

.home-hero {
  text-align: center;
  padding: 4rem 0 2rem;
}

.home-hero h1 { font-size: 2.5rem; margin-bottom: 0.25rem; }
.home-hero .tagline { color: var(--muted); font-size: 1.1rem; margin-bottom: 2rem; }

.product-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.product-list li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
}

.product-list .name { font-weight: 600; display: block; margin-bottom: 0.25rem; }
.product-list .desc { color: var(--muted); font-size: 0.9rem; }

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}