html, body {
  font-family: Arial, Helvetica, sans-serif;
  padding: 0;
  margin: 0;
  font-size: 16pt;
}

header, main, section {
  padding: 0;
  margin: 0;
}

h1, h2, caption {
  color: #2b2b2b;
  line-height: 1.4;
  margin: 0;
}

p {
  color: #3f454b;
  line-height: 1.7;
  margin: 0;
  margin: 12px 0;
}

a {
  color: #5177b8;
  text-decoration: none;
  box-shadow: inset 0 -2px 0 0 #5177b8;
}

main {
  padding: 2em 0;
}
main section {
  width: 90%;
  padding: 3em 0;
  margin: 0 auto;
}
main section h1 {
  font-size: 32pt;
}
main section h2 {
  font-size: 21pt;
}

@media (min-width: 912px) {
  main section {
    max-width: 912px;
    margin: 0 auto;
  }
}
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: #2b2b2b;
  box-shadow: 0 0 6px 4px rgba(0, 0, 0, 0.18);
}
.header h1 {
  padding: 12px 0;
  font-size: 14pt;
  text-transform: uppercase;
  font-weight: bold;
  letter-spacing: 2px;
  text-align: center;
  color: #f6f6f6;
}

.datatable {
  width: 100%;
  border-spacing: 0;
  text-align: left;
  font-size: 13pt;
}
.datatable caption {
  text-align: left;
  font-size: 16pt;
  margin: 12px 0;
  color: #2b2b2b;
  font-weight: 600;
}
.datatable thead tr th {
  font-weight: 600;
  padding: 4px 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-bottom: 1px solid #2b2b2b;
  color: #2b2b2b;
}
.datatable tbody tr th,
.datatable tbody tr td {
  font-weight: 400;
  padding: 24px 12px;
}
.datatable tbody tr th .hidden-colname,
.datatable tbody tr td .hidden-colname {
  display: inline-block;
  clip: rect(1px 1px 1px 1px);
  clip: rect(1px, 1px, 1px, 1px);
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.datatable tbody tr:nth-child(even) {
  background-color: #f6f6f6;
}

@media (max-width: 892px) {
  .datatable thead {
    position: absolute;
    clip: rect(1px 1px 1px 1px);
    clip: rect(1px, 1px, 1px, 1px);
    width: 1px;
    height: 1px;
    overflow: hidden;
  }
  .datatable tbody tr th,
.datatable tbody tr td {
    display: block;
    padding: 5px 0 5px 12px;
  }
  .datatable tbody tr th .hidden-colname,
.datatable tbody tr td .hidden-colname {
    display: inline-block;
    clip: auto;
    width: 150px;
    height: auto;
    line-height: 1;
  }
}
#birds-summary thead tr th:nth-child(2), #birds-summary thead tr th:nth-child(3), #birds-summary thead tr th:nth-child(4) {
  text-align: center;
}
#birds-summary tbody tr td:nth-child(2), #birds-summary tbody tr td:nth-child(4) {
  text-align: center;
}
#birds-summary tbody tr td:nth-child(3) {
  text-align: right;
}
#birds-summary tbody tr:hover {
  background-color: #92aad3;
  color: #2b2b2b;
}
#birds-summary tbody tr:hover td:last-of-type a {
  color: #2b2b2b;
  box-shadow: inset 0 -2px 0 0 #2b2b2b;
}
