body {
  font-family: "Segoe UI", sans-serif;
  background: #f9fafb;
  color: #333;
  line-height: 1.8;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 0 20px;
}

.header {
  background: #ffffff;
  position: sticky;
  top: 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  z-index: 1000;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.menu {
  list-style: none;
  display: flex;
  gap: 20px;
}

.menu a {
  font-weight: 500;
  color: #333;
}

.hero {
  background: linear-gradient(135deg, #dbeafe, #f0f9ff);
  padding: 80px 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.btn-primary {
  background: #2563eb;
  color: white;
  padding: 14px 28px;
  border-radius: 8px;
  display: inline-block;
  margin-top: 20px;
}

.content article {
  background: #fff;
  padding: 40px;
  margin: 40px 0;
  border-radius: 12px;
}

.cta-box {
  background: #2563eb;
  color: white;
  padding: 50px;
  border-radius: 16px;
  text-align: center;
}

.footer {
  text-align: center;
  padding: 30px;
  background: #111827;
  color: #fff;
}