header{
  display: grid;
  grid-template-columns: 1fr 1fr minmax(0, 1fr);
  width: 960px;
  background-color: #8060a0;
  background: linear-gradient(#604080, #8060a0);
  box-shadow: 0 0 8px 0 black;
  position: sticky;
  top: 0;
  padding: 6px;
  margin: auto;
  column-gap: 2rem;
  z-index: 1;
}

header h1 {
  display: none;
}

header a {
  text-decoration: none;
  color: white;
}

header a:hover {
  text-decoration: underline;
  color: white;
}

.icons {
  height: 2rem;
  display: inline;
  vertical-align: text-bottom;
  padding-right: 16px;
}

.main-navigation {
  justify-content: center;
  grid-column: 1/2;
  align-self: flex-end;
}

.main-navigation ul {
  text-align: left;
}

.main-navigation li {
  list-style: none;
  display: inline-block;
}

.main-navigation li:not(:last-child)::after {
  content: "|";
  margin: 0.5rem;
  color: white;
  font-weight: bold;
}

.header-logo {
  display: flex;
  grid-column: 2/3;
  width: 80%;
  align-self: center;
  margin: 0.2em;
}

.user-navigation {
  grid-column: 3/4;
  text-align: right;
  color: white;
  align-self: start;
}

.user-navigation table {
  table-layout: fixed;
  border-collapse: collapse;
  width: 100%;
}

td, th {
  padding: 1px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.left-col {
  width: 100%;
}

.right-col {
  width: 30px;
}