#content {
    display: grid;
    justify-items: center;
    gap: 1vh;
    width: 100%;
    user-select: none;
}

#sudoku-grid {
    grid-row: 1;
    display: grid;
    --border-color: black;
    border: 2px solid var(--border-color);
    --size: min(7vh, 10vw);
    grid-template-columns: repeat(9, var(--size));
    grid-template-rows: repeat(9, var(--size));
    font-size: calc(var(--size) / 3 * 2);
}

.sudoku-big-cell {
    border: 2px solid var(--border-color);
}

.sudoku-cell {
    border: 1px solid var(--border-color);
    /* height: var(--size);
    width: var(--size); */
    display: grid;
    align-items: center;
    justify-content: center;
}

.sudoku-cell.highlight {
    background-color: rgb(255, 255, 125);
}

.sudoku-cell.show-affected {
    background-color: rgb(184, 184, 184);
}

.sudoku-cell.highlight.show-affected {
    background-color: rgb(219, 219, 154);
}

.sudoku-cell.target {
    background-color: rgb(132, 132, 132);
    color: white;
    text-shadow: 1px 1px 0px black;
}

.sudoku-cell.highlight.target {
    background-color: rgb(158, 158, 132);
}

.sudoku-cell.solved {
    /* background-color: lightblue; */
    color: red;
}

.sudoku-cell-possibilities {
    font-size: calc(var(--size) / 3.8);
    pointer-events: none;
    padding: calc(var(--size) / 30) calc(var(--size) / 8);
}

.no-possibilities > .sudoku-cell-possibilities {
    display: none;
}

#inputs {
    --border-color: black;
    grid-row: 2;
    /* border: 5px solid red; */
    display: grid;

    --size: min(10vh, 15vw);
    grid-template-columns: repeat(4, var(--size));
    grid-template-rows: repeat(3, var(--size));
    --font-size: calc(var(--size) / 3 * 2);
    font-size: var(--font-size);
}

input[type="radio"] {
    display: none;
}

.selector {
    border: 1px solid var(--border-color);
    display: grid;
    align-items: center;
    justify-content: center;
}

.selected {
    background-color: rgb(184, 184, 184);
    font-size: calc(var(--font-size) * 5 / 4);
}

.solve-failled {
    background-color: red;
}

.solve-solving {
    animation: solving-animation 2s infinite ease-in-out;
}

@keyframes solving-animation {
    to {transform: rotate(360deg);}
}

/* .selector:has(input:checked) {
    background-color: rgb(184, 184, 184);
    font-size: calc(var(--font-size) * 5 / 4);
} */