body {
  margin: 0;
  font-family: Arial, sans-serif;
  text-align: center;
}

header {
  background: #000;
  color: #fff;
  padding: 80px 20px;
}

.btn {
  background: red;
  color: white;
  padding: 12px 24px;
  text-decoration: none;
  display: inline-block;
  margin-top: 20px;
}

section {
  padding: 60px 20px;
}

.problem {
  background: #f5f5f5;
}

.solution {
  background: #fff;
}

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

.features li {
  margin: 10px 0;
}

.cta {
  background: red;
  color: white;
}

button {
  padding: 15px 30px;
  border: none;
  background: black;
  color: white;
  cursor: pointer;
}