@font-face {
  font-family: "bios";
  src: url("../fonts/bios.woff2") format("woff2");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  --bios-dark-blue: #0000aa;
  --bios-light-blue: #00aaaa;
  --bios-grey: #aaaaaa;
}

body,
html {
  margin: 0;
  background-color: var(--bios-grey);
  font-family: "bios", monospace;
  text-rendering: optimizeSpeed;
}

.site {
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  grid-template-columns: minmax(0, 1fr);
}

button {
  font: inherit;
  border: none;
  background-color: transparent;
  text-align: center;
  cursor: pointer;
}

header {
  background-color: var(--bios-light-blue);
  color: black;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2rem;
  font-size: 1.5rem;
}

.tab {
  display: flex;
  overflow: hidden;
  background-color: var(--bios-dark-blue);
  min-height: 2rem;
  padding-left: 2rem;
}

.tab button {
  float: left;
  color: var(--bios-grey);
}

.tab button:hover {
  background-color: var(--bios-grey);
  color: var(--bios-dark-blue);
}

.tab button.active {
  background-color: var(--bios-grey);
  color: var(--bios-dark-blue);
}

.tabcontent {
  display: none;
}

footer {
  background-color: var(--bios-light-blue);
  min-height: 4rem;
}

.main {
  padding-left: 0.5rem;
  padding-right: 0.5rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  display: flex;
}

.panel {
  border: 2px solid black;
  flex: 1;
}