:root {
  --ink: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #4f46e5;
  --paper: #ffffff;
  --surface: #f8fafc;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, system-ui, sans-serif;
  line-height: 1.5;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1000px;
  margin: 0 auto;
  padding: 1.5rem;
}

.wordmark {
  font-weight: 700;
  font-size: 1.25rem;
}

.topbar__cta {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
}
.topbar__cta:hover { text-decoration: underline; }

.hero {
  max-width: 700px;
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 5rem) 1.5rem 3rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin: 0 0 1.25rem;
}

.hero__sub {
  color: var(--muted);
  font-size: 1.0625rem;
  max-width: 560px;
  margin: 0 auto 2rem;
}

.cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.875rem 1.75rem;
  border-radius: 999px;
  text-decoration: none;
}
.cta:hover { opacity: 0.92; }

.cta--secondary {
  background: var(--ink);
}

.features {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.feature h2 {
  font-size: 1.0625rem;
  margin: 0 0 0.5rem;
}

.feature p {
  color: var(--muted);
  font-size: 0.9375rem;
  margin: 0;
}

.types {
  background: var(--surface);
  padding: 3rem 1.5rem;
}

.types h2 {
  max-width: 700px;
  margin: 0 auto 1.5rem;
  text-align: center;
  font-size: 1.375rem;
}

.types__list {
  max-width: 700px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem 1.5rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

.cta-band {
  max-width: 700px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
  text-align: center;
}

.cta-band h2 {
  font-size: 1.25rem;
  margin: 0 0 1.25rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.8125rem;
}

@media (max-width: 600px) {
  .topbar { padding: 1.25rem 1rem; }
}