.box {
  max-width: 1000px;
  margin:50px auto;
  display: grid; 
  grid-gap: 10px;
  grid-template-columns: 250px minmax(0,1fr);
}

body {
  background-color: #F7E4D0;
}

header {
  border : black 2px hidden;
}
nav {
  border : black 2px solid;
}

main {
  border : black 2px solid;
  color: black
}
footer {
  border: black 2px hidden;
}

header {
  grid-row: 1 / 2;
  grid-column: 1 / 3;
}

nav {
  grid-row: 2 / 3;
  grid-column: 1 / 2;
  height: max-content; 
  background-color: #DEFFFE
}


main {
  grid-row: 1 / 3;
  grid-column: 2 / 2;
  height: max-content; 
  background-color: #DEFFFE
}

footer {
  grid-row: 3 / 4;
  grid-column: 1/ 3;
}