body {
  background-color: #1e1e1e;
  color: #c5c6c7;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

a {
  color: #66fcf1;
  text-decoration: none;
}

a:hover {
  color: #45a29e;
}

header {
  background-color: #0b0c10;
  padding: 10px 0;
  text-align: center;
}

footer {
  background-color: #0b0c10;
  color: #c5c6c7;
  text-align: center;
  padding: 10px;
  position: fixed;
  width: 100%;
  bottom: 0;
}

button {
  background-color: #45a29e;
  color: white;
  border: none;
  padding: 10px 20px;
  cursor: pointer;
}

button:hover {
  background-color: #66fcf1;
}

.navbar {
  display: flex;
  justify-content: space-around;
  background-color: #454545;
  padding: 10px 0;
}

.navbar a {
  color: white;
  font-weight: bold;
}

.main-content {
  padding: 20px;
}