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

body {
  font-family: Arial, Helvetica, sans-serif;
  color: #222;
  background: #fff;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3 {
  font-weight: 600;
}

ul {
  list-style: none;
}

.btn-primary {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 28px;
  background: #1f3a5f;
  color: #fff;
  border-radius: 4px;
}