:root {
  --ink: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --bg: #ffffff;
  --panel: #f9fafb;
  --brand: #6366f1;
}

* { box-sizing: border-box; }

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

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

header {
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
}

.nav-links a {
  margin-left: 20px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--muted);
}

.nav-links a:hover { color: var(--ink); }

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

h1 {
  font-size: 32px;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

h2 {
  font-size: 20px;
  margin-top: 40px;
}

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

.lede {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 32px;
}

.cta {
  display: inline-block;
  margin-top: 8px;
  padding: 12px 22px;
  background: var(--brand);
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
}

.features {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: grid;
  gap: 16px;
}

.features li {
  padding: 16px 20px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.features li strong { display: block; margin-bottom: 4px; }

.updated {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 32px;
}

footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

.footer-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 14px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  margin-right: 16px;
}

.footer-links a:hover { color: var(--ink); }