body {
  font-family: Roboto, Arial, Arial, Helvetica, sans-serif;
  margin: 0;
  background-color: white;
}

header {
  display: flex;
  color: white;
  background-color: #165788;
}

main {
  margin: 1rem;
  color: #121212;
  background-color: white;
}

h1 {
  font-size: 2em;
}

h2 {
  font-size: 1.75rem;
  margin-top: 1.75rem;
  margin-bottom: .75rem;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: .25rem;
}

p,
li {
  line-height: 130%;
}

ol,
ul {
  margin-top: 0;
  padding-left: 1.5rem;
}

h3 + p {
  margin-top: 0;
  padding-left: 1.5rem;  
}

p>ol,
p>ul {
  margin-top: 0;
}

p:has(+ ol),
p:has(+ ul) {
  margin-bottom: 0;
}

a {
  font-weight: 700;
}
a:link,
a:visited {
  color: #165788;
  text-decoration: underline; 
  }
a:hover,
a:focus,
a:active {
  color: #122870;
  text-decoration: none;
  }


.logo {
  margin: .5rem .75rem 0 .75rem;
  border: 0;
  padding: 0;
  padding-top: 1.25rem;
  height: 3.5rem;
}

.sitename {
  margin: 1.25rem 0 0 0;
  font-size: 2em;
  font-weight: 700;
  margin-bottom: 1rem;
}

@media (min-width: 22.5rem) {
  .logo {
    padding-top: 0;
  }
}

@media (min-width: 50rem) {
  main {
    margin: auto;
    width: 45rem;
  }

  ol,
  ul {
    padding-left: 2.5rem;
  }
}

@media screen and (prefers-color-scheme: dark) {
  body {
    background-color: #181A1B;
  }

  header {
    color: #82BEEB;
    background-color: #0A2F4C;
  }

  main {
    color: #DDDAD5;
    background-color: #181A1B;
  }

  a:link,
  a:visited {
    color: #82BEEB;
  }
  a:hover,
  a:focus,
  a:active {
    color: #bbd4e7;
  }
}