:root {
    --blue-1: #001A33;
    --blue-2: #004D99;
    --blue-3: #0080FF;
    --blue-4: #66B3FF;
    --blue-5: #CCE6FF;
    --grey-1: #161A1D;
    --grey-2: #434D56;
    --grey-3: #708090;
    --grey-4: #A9B3BC;
    --grey-5: #E2E6E9;
}

* {
  margin: 0;
  padding: 0;
}

body {
  font-size: 18px;
  line-height: 1.5;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

h1, h2, h3, h4, p {
    margin-bottom: 0.5em;
}

h1, h2, h3 {
  line-height: 1.3;
  font-weight: bold;
}

h1 {
  font-size: 35px;
}

h2 {
  font-size: 30px;
}

h3 {
  font-size: 25px;
}

h4 {
  font-size: 20px;
}

ul {
  margin: 0 0 1em 2.5em;
}

a {
  color: #000;
  text-decoration: none;
  border-bottom: 1px solid var(--blue-3);
}

a:hover {
  color: var(--blue-3);
}

#container {
  padding: 25px;
  margin: 50px auto;
  max-width: 1250px;
}

.space-10 {
  height: 10px;
}

.space-25 {
  height: 25px;
}

.space-50 {
  height: 50px;
}

@media (max-width: 1023px) {
    
    h1 {
      font-size: 32px;
    }
    
    h2 {
      font-size: 28px;
    }
    
    h3 {
      font-size: 23px;
    }
    
    h4 {
      font-size: 19px;
    }
    
    body {
      font-size: 17px;
    }

}

@media (max-width: 767px) {

    h1 {
      font-size: 30px;
    }

    h2 {
      font-size: 26px;
    }

    h3 {
      font-size: 22px;
    }
    
    h4 {
      font-size: 18px;
    }
    
    body {
      font-size: 16px;
    }

}