body {
  margin: 0;
  padding: 0;
  font-family: 'Helvetica Neue', sans-serif;
  background-color: #e0f7fa;
}

h1, h2, h3, h4, h5, h6 {
  color: #00796b;
  text-align: center;
}

p {
  color: #004d40;
  line-height: 1.6;
  margin: 15px;
}

a {
  color: #00695c;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #004d40;
}

footer {
  background-color: #00796b;
  color: white;
  text-align: center;
  padding: 10px 0;
}

nav {
  display: flex;
  justify-content: center;
  background-color: #004d40;
  padding: 10px 0;
}

nav a {
  margin: 0 15px;
  color: white;
  font-weight: bold;
}

button {
  background-color: #00796b;
  border: none;
  color: white;
  cursor: pointer;
  padding: 10px 20px;
  text-align: center;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  transition-duration: 0.4s;
}

button:hover {
  background-color: #004d40;
  color: white;
}

.container {
  width: 80%;
  margin: auto;
  overflow: hidden;
}