body {
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #ffffff;
  color: #222;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

header {
  margin-bottom: 60px;
}

header h1 {
  font-size: 2.8rem;
  margin-bottom: 10px;
}

.tagline {
  font-size: 1.1rem;
  color: #555;
}

.product h2 {
  font-size: 2rem;
  margin-bottom: 15px;
}

.product ul {
  margin: 20px 0;
  padding-left: 20px;
}

.product li {
  margin-bottom: 8px;
}

.price {
  font-size: 1.2rem;
  margin-top: 20px;
}

.cta {
  display: inline-block;
  margin-top: 25px;
  padding: 14px 28px;
  background-color: #2563eb;
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
}

.cta:hover {
  background-color: #1e40af;
}

footer {
  margin-top: 80px;
  text-align: center;
  font-size: 0.9rem;
  color: #777;
}