index.css

:root {
  --grid-template-areas-left:
  "ps gc"
  "ps pr";
  --grid-template-columns-left: 2fr 2fr;
  --grid-template-rows-left: 1fr 1fr;
  --grid-template-areas-right:
  "cj"
  "pa"
  "ga";
  --grid-template-columns: 1fr;
  --grid-template-rows: 1fr 1fr 1fr;
  --white: #FFFFFE;
  --black: #222222;
  --superblack: #000000;
  --darkgrey: #666666;
  --lightgrey: #BBBBBB;
  --flex-direction: row;
  --display-type: grid;
}

@media (width < 40em) {
  :root {
    --grid-template-areas-left:
    "ps"
    "gc"
    "pr"
    --grid-template-columns-left: 1fr;
    --grid-template-rows-left: 1fr 1fr 1fr;
    --grid-template-areas-right:
    "cj"
    "pa"
    "ga";
    --grid-template-columns-right: 1fr;
    --grid-template-rows-right: 1fr 1fr 1fr;
    --flex-direction: column;
    --display-type: flex
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --white: #000000;
    --black: #DFDFDF;
    --superblack: #FFFFFF;
    --darkgrey: #999999;
    --lightgrey: #444444;
  }
}

@page {
  size: A4 portrait;
}

@media print {
  :root {
    --white: #ffffff;
    --lightgrey: #ffffff;
  }
}

body {
  background-color: var(--lightgrey);
  margin: 1em;
  font-family: Arial, sans-serif;
}

.editable {
  width: 100%;
  height: 100%;
  outline: none;
}


* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
  color: var(--black);
}

.l-container {
  grid-template-areas: var(--grid-template-areas-left);
  grid-template-columns: var(--grid-template-columns-left);
  grid-template-rows: var(--grid-template-rows-left);
}

.container-common {
  height: 88svh;
  display: var(--display-type);
  flex-direction: var(--flex-direction);
  width: 100%;
}

.r-container {
  grid-template-areas: var(--grid-template-areas-right);
  grid-template-columns: var(--grid-template-columns-right);
  grid-template-rows: var(--grid-template-rows-right);
}

.grid-item {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--darkgrey);
  padding: 1em;
  height: 100%;
  overflow: auto;
}

.focused {
  background-color: var(--white);
}

#page {
  display: flex;
  flex-direction: var(--flex-direction);
  gap: 2em;
}

#header {
  display: flex;
  flex-direction: var(--flex-direction);
  justify-content: space-between;
  padding-bottom: 1em;
}

#mpd {
  display: flex;
  flex-direction: column;
  width: 20rem;
  overflow: auto;
  min-height: 1ch;
}

#team {
  display: flex;
  flex-direction: column;
  width: 20rem;
  overflow: auto;
  min-height: 1ch;
}

#ps {
  grid-area: ps;
}

#gc {
  grid-area: gc;
}

#pr {
  grid-area: pr;
}

#cj {
  grid-area: cj;
}

#pa {
  grid-area: pa;
}

#ga {
  grid-area: ga;
}

#footer {
  margin-top: 5px;
}