body {
  font-family: 'Roboto', sans-serif;
  background-color: #f5f5f5;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.nav-wrapper {
  background-color: #2196F3;
  padding: 0 20px;
}

.container {
  flex: 1 0 auto;
}

.section {
  padding: 50px 0;
}

h4 {
  text-align: center;
  color: #2196F3;
  margin-bottom: 30px;
}

p {
  text-align: center;
  font-size: 1.2em;
}

.page-footer {
  background-color: #2196F3;
  padding-top: 20px;
  flex-shrink: 0;
}