/* Basic reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Page */
body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #7de8bb;
}

/* Header */
header {
  background: #000;
  color: #7de8bb;
  padding: 20px;
  text-align: center;
}

/* Navigation */
nav {
  margin-top: 10px;
}

nav a {
  color: #7de886;
  text-decoration: none;
  margin: 0 10px;
}

/* Main content */
main {
  max-width: 900px;
  margin: 40px auto;
  padding: 0 20px;
}

section {
  background: white;
  padding: 30px;
  margin-bottom: 20px;
  border-radius: 8px;
}

h1,
h2 {
  margin-bottom: 15px;
}

/* Button */
.button {
  display: inline-block;
  margin-top: 15px;
  padding: 10px 18px;
  background: #222;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  color: #666;
}

/* Mobile */
@media (max-width: 600px) {
  header {
	padding: 15px;
  }

  nav a {
	display: block;
	margin: 5px 0;
  }

  main {
	margin: 20px auto;
  }

  section {
	padding: 20px;
  }
}