:root {
  --bg: #fafaf7;
  --fg: #1a1a1a;
  --muted: #555;
  --accent: #d94f4f;
  --max-width: 720px;
  --radius: 8px;
}

* { box-sizing: border-box; }

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

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header, main, footer {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
}

header {
  border-bottom: 1px solid #eee;
}

header a.brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--fg);
  text-decoration: none;
}

main { flex: 1; }

h1 {
  font-size: 2rem;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

h2 {
  margin-top: 2rem;
}

p { color: var(--muted); }

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

.lede {
  font-size: 1.15rem;
  color: var(--fg);
}

.product-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  border: 1px solid #e5e5e5;
  border-radius: var(--radius);
  padding: 1.25rem;
  background: #fff;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease;
}

.card:hover {
  border-color: var(--accent);
}

.card h3 {
  margin: 0 0 0.25rem 0;
}

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

ul.spec {
  padding-left: 1.25rem;
}