body {
  display: grid;
  place-items: center;
}

main {
  padding: 1em;
}

header {
  display: flex;
  justify-content: start;
  align-content: center;
  img {
    width: 4em;
  }
  nav {
    width: 100%;
    display: flex;
    padding-left: 1em;
    h1 {
      align-content: center;
    }
    ul {
      align-content: center;
      li {
        font-size: 1.5em;
        padding: 0.5em;
        list-style: none;
        display: inline-block;
      }
    }
  }
}

article {
  padding: 0.5em;
  hgroup {
    ul {
      list-style: none;
      padding: 0;
      text-align: justify;
    }
  }
}
p {
  padding-top: 1em;
  padding-bottom: 1em;
}

footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

@media only screen and (max-width: 576px) {
  main {
    width: 100%;
  }
  nav {
    display: flex;
    h1 {
      display: none;
    }
    justify-content: flex-end;
  }
}

@media only screen and (min-width: 577px) and (max-width: 768px) {
  main {
    width: 80%;
    nav {
      justify-content: space-between;
      ul {
        li {
          font-size: 1em;
        }
      }
    }
  }
}

@media only screen and (min-width: 769px) and (max-width: 1024px) {
  main {
    width: 666px;
    nav {
      justify-content: space-between;
      ul {
        li {
          font-size: 1.2em;
        }
      }
    }
  }
}

@media only screen and (min-width: 1025px) and (max-width: 1440px) {
  main {
    width: 666px;
    nav {
      justify-content: space-between;
      ul {
        li {
          font-size: 1.3em;
        }
      }
    }
  }
}

@media only screen and (min-width: 1441px) {
  main {
    width: 666px;
    nav {
      justify-content: space-between;
    }
  }
}