body {
  display: flex;
  height: 100dvh;
  margin: 0;
  padding: 0;
  justify-content: space-between;
}

.col1,
.col2 {
  flex-grow: 1;
  padding: 1rem;
}

label {
  display: block;
  margin-bottom: 1rem;
  width: 100%;
  text-wrap: nowrap;
}

#myCanvas {
  width: 100%;
  height: 100%;
}

nav {
  display: flex;
  gap: 10px;
  position: fixed;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
}

.debug-textarea {
  position: fixed;
  right: 0;
  bottom: 0;
  height: 300px;
  width: 300px;
}

.grid-line-horizontal {
  position: absolute;
  left: 0;
  top: 10%;
  width: 100%;
  border-bottom: 2px solid rgba(0, 255, 255, 0.9);
  height: 20px;
  cursor: ns-resize;
}

.grid-line-vertical {
  position: absolute;
  top: 0;
  left: 90%;
  height: 100%;
  width: 20px;
  border-left: 2px solid rgba(0, 255, 255, 0.9);
  cursor: ew-resize;
}