:root {
  --bg: #fafaf7;
  --ink: #1a1a1a;
  --muted: #6a6a66;
  --accent: #2f5d3a;
  --accent-soft: #e8efe8;
  --rule: #e4e4de;
  --max: 780px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

header {
  border-bottom: 1px solid var(--rule);
  padding: 1.25rem 1.5rem;
  background: var(--bg);
}

nav {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.5rem;
  font-size: 0.95rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

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

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.hero {
  padding: 2rem 0 3rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 2.5rem;
}

h1 {
  font-size: 2.5rem;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
  font-weight: 700;
  line-height: 1.2;
}

h2 {
  font-size: 1.5rem;
  margin: 2.75rem 0 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.4rem;
  font-weight: 600;
}

.lede {
  font-size: 1.2rem;
  color: var(--muted);
  margin: 0;
  max-width: 60ch;
}

.section-lede {
  color: var(--muted);
  margin: 0 0 1.5rem;
}

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

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

.product {
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.5rem;
  background: #fff;
}

.product h3 {
  margin-top: 0;
  font-size: 1.25rem;
}

.product-tag {
  color: var(--accent);
  font-weight: 600;
  margin: 0.25rem 0 0.75rem;
}

.product .meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 1rem;
  margin-bottom: 0;
}

.prose p { margin: 1rem 0; }
.prose ul { margin: 1rem 0; padding-left: 1.4rem; }
.prose li { margin: 0.35rem 0; }

.callout {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 4px 4px 0;
}

footer {
  max-width: var(--max);
  margin: 4rem auto 2rem;
  padding: 2rem 1.5rem 1.5rem;
  border-top: 1px solid var(--rule);
  font-size: 0.92rem;
  color: var(--muted);
}

.footer-cols {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.footer-cols p {
  margin: 0.35rem 0;
}

.footer-brand {
  font-weight: 700;
  color: var(--ink);
}

footer a { color: var(--muted); }
footer a:hover { color: var(--accent); }

.copyright {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

@media (max-width: 480px) {
  h1 { font-size: 2rem; }
  nav ul { gap: 1rem; }
}