:root {
    --n: 5;
}

* {
    font-family: 'Century Gothic', Arial, sans-serif;
    text-align: center;
}

.inactive {
    display: none !important;
}

.container {  
    margin: 30px auto;
    display: grid;
    justify-content: center;
    grid-template-columns: 30px repeat(var(--n), 50px) 30px; /*N*/
    grid-template-rows: 30px repeat(var(--n), 50px) 30px; /*N*/
    gap: 0px 0px;
    grid-auto-flow: row;
}
  
.rowIndex { 
    grid-area: 2 / 1 / calc(var(--n) + 1) / 1;
    display: grid;
    grid-template-columns: 30px;
    grid-template-rows: repeat(var(--n), 50px); /*N*/
    gap: 0px 0px;
    grid-auto-flow: row; 
}

.colIndex { 
    grid-area: calc(var(--n) + 2) / 2 / calc(var(--n) + 2) / calc(var(--n) + 1); 
    display: grid;
    grid-template-columns: repeat(var(--n), 50px); /*N*/
    grid-template-rows: 30px;
    gap: 0px 0px;
    grid-auto-flow: row; 
}

.solution { 
    grid-area: 2 / 2 / calc(var(--n) + 1) / calc(var(--n) + 1);
    display: grid;
    grid-template-columns: repeat(var(--n), 50px); /*N*/
    grid-template-rows: repeat(var(--n), 50px); /*N*/
    grid-auto-flow: row; 
}

.rowRequi { 
    grid-area: 2 / calc(var(--n) + 2) / calc(var(--n) + 1) / calc(var(--n) + 2); 
    display: grid;
    grid-template-columns: 30px;
    grid-template-rows: repeat(var(--n), 50px); /*N*/
    gap: 0px 0px;
    grid-auto-flow: row;
}

.colRequi { 
    grid-area: 1 / 2 / 1 / calc(var(--n) + 1); ; 
    display: grid;
    grid-template-columns: repeat(var(--n), 50px); /*N*/
    grid-template-rows: 30px;
    gap: 0px 0px;
    grid-auto-flow: row; 
}

.solution > div {
    border: 1px solid #203764;
}

.rowIndex > div {
    border: 1px solid #203764;
    display: grid;
    align-items: center;
    font-weight: 700;
}

.colIndex > div {
    border: 1px solid #203764;
    display: grid;
    align-items: center;
    font-weight: 700;
}

.rowRequi, .colRequi {
    display: grid;
    align-items: center;
    font-weight: 600;
    font-size: 12px;
}

.startPosition {
    background-color: #008000;
    color: #FFFFFF;
}

.endPosition {
    background-color: #cc6600;
    color: #FFFFFF;
}

.A {
    background-image: url("./assets/A.png");
    background-size: contain;
}

.B {
    background-image: url("./assets/B.png");
    background-size: contain;
}

.C {
    background-image: url("./assets/C.png");
    background-size: contain;
}

.D {
    background-image: url("./assets/D.png");
    background-size: contain;
}

.E {
    background-image: url("./assets/E.png");
    background-size: contain;
}

.F {
    background-image: url("./assets/F.png");
    background-size: contain;
}

.N {
    /*Empty type*/
    background-image: none;
}