body {
  font-family: Cantarell, sans;
  position: relative;
}

h1, h2, h3, h4, h5, h6 { font-family: 'Roboto Condensed', sans; }

footer {
  color: #999;
  text-align: center;
  margin-top: 2rem;
}

a { color: black; }
a:hover { color: orange; }

#nav h1 {
  margin: 0;
  padding: 0;
  font-size: 1.5rem;
}

#content h1 { font-size: 2.4rem; }
#content h2 { font-size: 2rem; }
#content h3 { font-size: 1.5rem; }
#content h4 { font-size: 1.35rem; }

#content h5 {
  font-size: 1.35rem;
  font-weight: normal;
  text-decoration: underline;
}

#content h6 {
  font-size: 1rem;
  font-weight: normal;
  font-variant: small-caps;
}

#content h1.title {
  text-align: center;
  width: 100%;
}

/* common between xsmall, small, and med */
@media screen and (max-width: 1200px) {
  #nav {
    border-top: solid thin gray;
    padding-top: 1rem;
    position: absolute;
  }

  #nav h1, #nav ul { 
    width: 14rem;
    margin: 0 auto;
  }

  #nav h1 { font-size: 1.5rem; }

  footer {
    position: absolute;
    bottom: 0;
    width: 100%;
  }
}

/* common between xsmall and small */
@media screen and (max-width: 640px) {
  #content h1 { font-size: 2rem; }
  #content h2 { font-size: 1.67rem; }

  #nav ul {
    font-size: 1.5rem;
    padding-left: 3rem;
  }
}

/* xsmall */
@media screen and (max-width: 320px) {
  html { font-size: 10px; }
  body {
    width: 100%;
    margin: 2px;
    padding-bottom: 14rem;
  }

  #nav {
    width: 100%;
    bottom: 3rem;
  }

}

/* small */
@media screen and (min-width: 321px) and (max-width: 640px) {
  html { font-size: 12px; }
  body {
    margin: 1vw auto;
    width: 40rem;
    max-width: 96%;
    padding-bottom: 12rem;
  }

  #nav {
    width: 40rem;
    max-width: 96%;
    bottom: 1.5rem;
  }

}

/* medium */
@media screen and (min-width: 641px) and (max-width: 1200px) {
  html { font-size: 16px; }
  body {
    margin: 2vw auto;
    width: 40em;
    padding-bottom: 11rem;
  }
  
  #nav {
    width: 40rem;
    bottom: 2rem;
  }

}

/* large */
@media screen and (min-width: 1201px) {
  html { font-size: 1.2vw; }
  body {
    margin: 2vw auto;
    width: 40em;
  }

  #nav {
    position: fixed;
    left: calc(50% - 36em);
    top: 2vw;
    margin: 0;
    padding: 0;
  }
}