:root {
  --bg: #F7F9FB;
  --text: #1F2933;
  --muted: #6B7280;
  --accent: #2563EB;
  --border: #E5E7EB;
}

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

.container {
  max-width: 1000px;
  margin: auto;
  padding: 0 20px;
}

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

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-weight: 600;
  font-size: 18px;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: var(--text);
}

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

.page-hero {
  padding: 60px 0;
  text-align: center;
}

.page-hero h1 {
  font-size: 32px;
  margin-bottom: 10px;
}

.page-hero p {
  color: var(--muted);
  font-size: 18px;
}

.card-section {
  padding: 40px 0 80px;
}

.cards {
  display: grid;
  gap: 25px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: white;
  padding: 25px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.card h3 {
  margin-top: 0;
  color: var(--accent);
}

.card ul {
  padding-left: 20px;
}

footer {
  padding: 40px 0;
  background: white;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 14px;
  color: var(--muted);
}