:root {
  --max: 980px;
  --pad: 18px;
  --border: #e6e6e6;
  --muted: #555;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.55;
  color: #111;
}

a { color: inherit; }

.wrapper {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.header {
  border-bottom: 1px solid var(--border);
  background: #fff;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.2px;
}

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

.hero {
  padding: 46px 0 26px;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: 34px;
}

.hero p {
  margin: 0 0 18px;
  color: var(--muted);
  max-width: 720px;
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: 18px 0 44px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  background: #fff;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0 0 12px;
  color: var(--muted);
}

.button {
  display: inline-block;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 18px 0;
  color: var(--muted);
  font-size: 13px;
}

@media (min-width: 720px) {
  .cards { grid-template-columns: 1fr 1fr; }
}