:root {
  --bg: #0f172a;          /* dark slate */
  --bg-panel: #1e293b;
  --border: #334155;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
}

.wordmark {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--text);
}

main {
  flex: 1;
  width: 100%;
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 2rem;
}

.hero {
  padding: 5rem 0 3rem;
}

.hero h1 {
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.3;
}

.hero .sub {
  margin-top: 0.75rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.products,
.contact {
  padding: 1.5rem 0 2.5rem;
}

h2 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.card {
  display: block;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.4rem;
  text-decoration: none;
  color: var(--text);
}

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

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.card-link {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
}

.card-muted {
  opacity: 0.65;
}

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

.contact a:hover {
  text-decoration: underline;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
}

@media (max-width: 40rem) {
  .cards {
    grid-template-columns: 1fr;
  }

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

  .hero h1 {
    font-size: 1.5rem;
  }
}