body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f0f2f5;
  color: #333;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.content-container {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  margin-bottom: 40px;
}

header {
  background-color: #4a90e2;
  color: #fff;
  padding: 20px 0;
  width: 100%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header h1 {
  margin: 0;
  font-size: 2.5em;
}

header nav ul {
  list-style-type: none;
  padding: 0;
  margin: 10px 0 0;
  display: flex;
  justify-content: center;
}

header nav ul li {
  margin: 0 15px;
}

header nav ul li a {
  color: #fff;
  text-decoration: none;
  font-size: 1.1em;
  transition: color 0.3s;
}

header nav ul li a:hover {
  color: #d1eaff;
}

main {
  padding: 40px 0;
  width: 100%;
}

#intro h2, #features h2, #privacy-policy h2, #terms-of-service h2 {
  font-size: 2.2em;
  margin-bottom: 10px;
  color: #4a90e2;
}

#intro p, #privacy-policy p, #privacy-policy ul, #terms-of-service p, #terms-of-service ul {
  font-size: 1.2em;
  line-height: 1.6;
}

#features ul {
  list-style-type: none;
  padding: 0;
}

#features li {
  margin: 10px 0;
  font-size: 1.1em;
}

#cta button {
  background-color: #4a90e2;
  color: #fff;
  border: none;
  padding: 15px 30px;
  font-size: 1.2em;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s;
}

#cta button:hover {
  background-color: #357ab8;
}

footer {
  background-color: #4a90e2;
  color: #fff;
  padding: 20px 0;
  width: 100%;
}

footer p {
  margin: 0;
}

footer nav ul {
  list-style-type: none;
  padding: 0;
  margin: 10px 0 0;
  display: flex;
  justify-content: center;
}

footer nav ul li {
  margin: 0 15px;
}

footer nav ul li a {
  color: #fff;
  text-decoration: none;
  font-size: 1em;
  transition: color 0.3s;
}

footer nav ul li a:hover {
  color: #d1eaff;
}