/* ROOT */
:root {
    --color-submit-0: #a4e0fc;
    --color-submit-1: #7dd3fc;
    --color-submit-2: #38bdf8;
    --color-submit-3: #0ea5e9;
    --color-submit-4: #0284c7;

    --color-difficulty-easy: #4ade80;
    --color-difficulty-medium: #60a5fa;
    --color-difficulty-hard: #f87171;

    --color-error-1: #ef4444;
    --color-error-2: #dc2626;
    --color-error-3: #b91c1c;

    --color-white: #ffffff;
    --color-gray-1: #6b7280;
    --color-gray-2: #a4a4a4;
    --color-gray-7: #36404e;
    --color-gray-8: #242b36;
    --color-gray-9: #1a1f27;

    --color-github-1: #9b4ee4;
    --color-github-2: #9333ea;
    --color-github-3: #6f20b4;
    --color-github-4: #6b21a8;

    --color-x-1: #6b7280;
    --color-x-2: #4b5563;
    --color-x-3: #374151;
    --color-x-4: #1f2937;

    --color-information-1: #9bf39c;
    --color-information-2: #38e739;
    --color-information-3: #2cb82d;
    --color-information-4: #218a22;

    --color-pointer-1: #f3f4f6;
    --color-pointer-2: #6b7280;
    --color-pointer-3: #4b5563;
    --color-pointer-4: #374151;

    --color-line-input: #22ddcd;
}

/* FONTS */
@font-face {
    font-family: "CrossyFont";
    src: url("../../public/fonts/8-BIT.TTF");
}

@font-face {
    font-family: "NumberFont";
    src: url("../..public/fonts/TimeburnerBold.ttf");
}

* {
    font-family: "CrossyFont";
    -webkit-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    input[type="number"]::-webkit-outer-spin-button,
    input[type="number"]::-webkit-inner-spin-button {
        -webkit-appearance: none;
        margin: 0;
    }
}

input {
    outline: none;
    text-align: center;
}

.text-stroke-3 {
    -webkit-text-stroke: 2px black;
}

.shadow-easy {
    box-shadow: 0 4px var(--color-difficulty-easy), 4px 0px var(--color-difficulty-easy), 0px -4px var(--color-difficulty-easy),
        -4px 0px var(--color-difficulty-easy);
}

.shadow-medium {
    box-shadow: 0 4px var(--color-difficulty-medium), 4px 0px var(--color-difficulty-medium), 0px -4px var(--color-difficulty-medium),
        -4px 0px var(--color-difficulty-medium);
}

.shadow-hard {
    box-shadow: 0 4px var(--color-difficulty-hard), 4px 0px var(--color-difficulty-hard), 0px -4px var(--color-difficulty-hard),
        -4px 0px var(--color-difficulty-hard);
}

.shadow-submit {
    background-color: var(--color-submit-2);
    box-shadow: 0px 4px var(--color-submit-2), 4px 0px var(--color-submit-2), -4px 0px var(--color-submit-2), 0px -4px var(--color-submit-2),
        0px 8px var(--color-submit-3), 4px 4px var(--color-submit-3), -4px 4px var(--color-submit-3), 0 12px var(--color-white), 4px 12px var(--color-white),
        -4px 4px var(--color-white), -4px -4px var(--color-submit-2), 0px -8px var(--color-submit-2), 4px -4px var(--color-submit-2),
        -4px -8px var(--color-submit-1), 4px -8px var(--color-submit-1), 8px 4px var(--color-white), 8px 8px var(--color-white), -8px 8px var(--color-white),
        -4px 12px var(--color-white), -8px 4px var(--color-white), -8px 0px var(--color-white), -4px 8px var(--color-white), 8px -4px var(--color-white),
        -8px -4px var(--color-white), 8px 0px var(--color-white), 0px -12px var(--color-submit-1);
}

.shadow-submit:active {
    background-color: var(--color-submit-3);
    box-shadow: 4px 4px var(--color-submit-3), -4px 4px var(--color-submit-3), 0px 4px var(--color-submit-3), 4px 0px var(--color-submit-4),
        -4px 0px var(--color-submit-4), 0px -4px var(--color-submit-4), 0px 8px var(--color-submit-3), 4px 4px var(--color-submit-4),
        -4px 4px var(--color-submit-4), 0 12px var(--color-white), 4px 12px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-white),
        0px -8px var(--color-white), 4px -4px var(--color-white), -4px -8px var(--color-white), 4px -8px var(--color-white), 8px 4px var(--color-white),
        8px 8px var(--color-white), -8px 8px var(--color-white), -4px 12px var(--color-white), -8px 4px var(--color-white), -8px 0px var(--color-white),
        -4px 8px var(--color-white), 8px -4px var(--color-white), -8px -4px var(--color-white), 8px 0px var(--color-white);
    padding-top: 4px;
}

.difficulty__button img {
    visibility: hidden;
}

.difficulty__button--active img {
    visibility: visible;
}

.algorithm__button img {
    visibility: hidden;
}

.algorithm__button--active img {
    visibility: visible;
}

.sudoku__table input {
    width: 40px;
    height: 36px;
    background-color: var(--color-submit-2);
    text-align: center;
    box-shadow: 0px 4px var(--color-submit-2), 4px 0px var(--color-submit-2), -4px 0px var(--color-submit-2), 0px -4px var(--color-submit-2),
        0px 8px var(--color-submit-3), 4px 4px var(--color-submit-3), -4px 4px var(--color-submit-3), 0 12px var(--color-white), 4px 12px var(--color-white),
        -4px 4px var(--color-white), -4px -4px var(--color-submit-2), 0px -8px var(--color-submit-2), 4px -4px var(--color-submit-2),
        -4px -8px var(--color-submit-1), 4px -8px var(--color-submit-1), 8px 4px var(--color-white), 8px 8px var(--color-white), -8px 8px var(--color-white),
        -4px 12px var(--color-white), -8px 4px var(--color-white), -8px 0px var(--color-white), -4px 8px var(--color-white), 8px -4px var(--color-white),
        -8px -4px var(--color-white), 8px 0px var(--color-white), 0px -12px var(--color-submit-1);
}

.sudoku__table input:focus {
    width: 36px;
    height: 36px;
    background-color: var(--color-submit-3);
    text-align: center;
    box-shadow: 4px 4px var(--color-submit-3), -4px 4px var(--color-submit-3), 0px 4px var(--color-submit-3), 4px 0px var(--color-submit-4),
        -4px 0px var(--color-submit-4), 0px -4px var(--color-submit-4), 0px 8px var(--color-submit-3), 4px 4px var(--color-submit-4),
        -4px 4px var(--color-submit-4), 0 12px var(--color-white), 4px 12px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-white),
        0px -8px var(--color-white), 4px -4px var(--color-white), -4px -8px var(--color-white), 4px -8px var(--color-white), 8px 4px var(--color-white),
        8px 8px var(--color-white), -8px 8px var(--color-white), -4px 12px var(--color-white), -8px 4px var(--color-white), -8px 0px var(--color-white),
        -4px 8px var(--color-white), 8px -4px var(--color-white), -8px -4px var(--color-white), 8px 0px var(--color-white);
    padding-top: 4px;
}

.sudoku__table {
    font-size: 24px;
    margin-top: 36px;
    background-color: var(--color-white);
    box-shadow: -8px 0px var(--color-white), 8px 0px var(--color-white), 0px -12px var(--color-white), 0px 12px var(--color-white);
}

.shadow__algorithm {
    box-shadow: 0px 4px var(--color-gray-1), 4px 0px var(--color-gray-1), -4px 0px var(--color-gray-1), 0px -4px var(--color-gray-1),
        0px 8px var(--color-gray-7), 4px 4px var(--color-gray-7), -4px -4px var(--color-gray-1), 0px -8px var(--color-gray-1), 4px -4px var(--color-gray-1),
        -4px -8px var(--color-gray-2), 0px -12px var(--color-gray-2);

    background-color: var(--color-gray-1);
}

.shadow__algorithm-disable {
    box-shadow: 0 4px var(--color-gray-7), 4px 0px var(--color-gray-7), 0px -4px var(--color-gray-7), -4px 0px var(--color-gray-7);
}

.shadow-break {
    box-shadow: 0 1px var(--color-white), 1px 0px var(--color-white), 0px -1px var(--color-white), -1px 0px var(--color-white);
}

.shadow-difficulty-title {
    box-shadow: 0 2px var(--color-gray-1), -2px 0px var(--color-gray-1), 2px 0px var(--color-gray-1);
}

.shadow__github {
    outline: none;
    width: 40px;
    background-color: var(--color-github-2);
    box-shadow: 0px 4px var(--color-github-2), 4px 0px var(--color-github-2), -4px 0px var(--color-github-2), 0px -4px var(--color-github-2),
        0px 8px var(--color-github-3), 4px 4px var(--color-github-3), -4px 4px var(--color-github-3), 0 12px var(--color-white), 4px 12px var(--color-white),
        -4px 4px var(--color-white), -4px -4px var(--color-github-2), 0px -8px var(--color-github-2), 4px -4px var(--color-github-2),
        -4px -8px var(--color-github-1), 4px -8px var(--color-github-1), 8px 4px var(--color-white), 8px 8px var(--color-white), -8px 8px var(--color-white),
        -4px 12px var(--color-white), -8px 4px var(--color-white), -8px 0px var(--color-white), -4px 8px var(--color-white), 8px -4px var(--color-white),
        -8px -4px var(--color-white), 8px 0px var(--color-white), 0px -12px var(--color-github-1);
}

.shadow__github:active {
    background-color: var(--color-github-3);
    box-shadow: 4px 4px var(--color-github-3), -4px 4px var(--color-github-3), 0px 4px var(--color-github-3), 4px 0px var(--color-github-4),
        -4px 0px var(--color-github-4), 0px -4px var(--color-github-4), 0px 8px var(--color-github-3), 4px 4px var(--color-github-4),
        -4px 4px var(--color-github-4), 0 12px var(--color-white), 4px 12px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-white),
        0px -8px var(--color-white), 4px -4px var(--color-white), -4px -8px var(--color-white), 4px -8px var(--color-white), 8px 4px var(--color-white),
        8px 8px var(--color-white), -8px 8px var(--color-white), -4px 12px var(--color-white), -8px 4px var(--color-white), -8px 0px var(--color-white),
        -4px 8px var(--color-white), 8px -4px var(--color-white), -8px -4px var(--color-white), 8px 0px var(--color-white);
    padding-top: 4px;
}

.shadow__x {
    outline: none;
    width: 40px;
    background-color: var(--color-x-2);
    box-shadow: 0px 4px var(--color-x-2), 4px 0px var(--color-x-2), -4px 0px var(--color-x-2), 0px -4px var(--color-x-2), 0px 8px var(--color-x-3),
        4px 4px var(--color-x-3), -4px 4px var(--color-x-3), 0 12px var(--color-white), 4px 12px var(--color-white), -4px 4px var(--color-white),
        -4px -4px var(--color-x-2), 0px -8px var(--color-x-2), 4px -4px var(--color-x-2), -4px -8px var(--color-x-1), 4px -8px var(--color-x-1),
        8px 4px var(--color-white), 8px 8px var(--color-white), -8px 8px var(--color-white), -4px 12px var(--color-white), -8px 4px var(--color-white),
        -8px 0px var(--color-white), -4px 8px var(--color-white), 8px -4px var(--color-white), -8px -4px var(--color-white), 8px 0px var(--color-white),
        0px -12px var(--color-x-1);
}

.shadow__x:active {
    background-color: var(--color-x-3);
    box-shadow: 4px 4px var(--color-x-3), -4px 4px var(--color-x-3), 0px 4px var(--color-x-3), 4px 0px var(--color-x-4), -4px 0px var(--color-x-4),
        0px -4px var(--color-x-4), 0px 8px var(--color-x-3), 4px 4px var(--color-x-4), -4px 4px var(--color-x-4), 0 12px var(--color-white),
        4px 12px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-white), 0px -8px var(--color-white), 4px -4px var(--color-white),
        -4px -8px var(--color-white), 4px -8px var(--color-white), 8px 4px var(--color-white), 8px 8px var(--color-white), -8px 8px var(--color-white),
        -4px 12px var(--color-white), -8px 4px var(--color-white), -8px 0px var(--color-white), -4px 8px var(--color-white), 8px -4px var(--color-white),
        -8px -4px var(--color-white), 8px 0px var(--color-white);
    padding-top: 4px;
}

.left__side {
    background-image: url("../../public/images/Back02.png");
    background-size: 360px;
}

.right__side {
    background-image: url("../../public/images/Back01.png");
    background-size: 360px;
}

.switch {
    position: relative;
    display: inline-block;
    width: 54px;
    height: 28px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-submit-2);
    -webkit-transition: 0.4s;
    transition: 0.4s;

    box-shadow: 0px -2px var(--color-submit-2), 0px 2px var(--color-submit-2), 2px 0px var(--color-submit-2), -2px 0px var(--color-submit-2);
}

.slider:before {
    box-shadow: 0px -2px var(--color-white), 0px 2px var(--color-white), 2px 0px var(--color-white), -2px 0px var(--color-white);
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    -webkit-transition: 0.4s;
    transition: 0.4s;
}

input:checked + .slider:before {
    -webkit-transform: translateX(26px);
    -ms-transform: translateX(26px);
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

.help__generator {
    outline: none;
    width: 40px;
    background-color: var(--color-information-2);
    box-shadow: 0px 3px var(--color-information-2), 3px 0px var(--color-information-2), -3px 0px var(--color-information-2), 0px -3px var(--color-information-2),
        0px 6px var(--color-information-3), 3px 3px var(--color-information-3), -3px 3px var(--color-information-3), 0 9px var(--color-white),
        3px 9px var(--color-white), -3px 3px var(--color-white), -3px -3px var(--color-information-2), 0px -6px var(--color-information-2),
        3px -3px var(--color-information-2), -3px -6px var(--color-information-1), 3px -6px var(--color-information-1), 6px 3px var(--color-white),
        6px 6px var(--color-white), -6px 6px var(--color-white), -3px 9px var(--color-white), -6px 3px var(--color-white), -6px 0px var(--color-white),
        -3px 6px var(--color-white), 6px -3px var(--color-white), -6px -3px var(--color-white), 6px 0px var(--color-white), 0px -9px var(--color-information-1);
    margin-left: 340px;
}

.help__generator:active {
    background-color: var(--color-information-3);
    box-shadow: 3px 3px var(--color-information-3), -3px 3px var(--color-information-3), 0px 3px var(--color-information-3), 3px 0px var(--color-information-4),
        -3px 0px var(--color-information-4), 0px -3px var(--color-information-4), 0px 6px var(--color-information-3), 3px 3px var(--color-information-4),
        -3px 3px var(--color-information-4), 0 9px var(--color-white), 3px 9px var(--color-white), -3px 3px var(--color-white), -3px -3px var(--color-white),
        0px -6px var(--color-white), 3px -3px var(--color-white), -3px -6px var(--color-white), 3px -6px var(--color-white), 6px 3px var(--color-white),
        6px 6px var(--color-white), -6px 6px var(--color-white), -3px 9px var(--color-white), -6px 3px var(--color-white), -6px 0px var(--color-white),
        -3px 6px var(--color-white), 6px -3px var(--color-white), -6px -3px var(--color-white), 6px 0px var(--color-white);
    padding-top: 3px;
}

.shadow__switch {
    box-shadow: 0px -8px var(--color-white), 0px 8px var(--color-white), 4px -8px var(--color-white), 4px 4px var(--color-white), -4px -8px var(--color-white),
        -4px 4px var(--color-white);
    width: 255px;
}

.shadow__speed {
    box-shadow: 0px -2px var(--color-submit-2), 0px 2px var(--color-submit-2), 2px 0px var(--color-submit-2), -2px 0px var(--color-submit-2);
    background-color: var(--color-submit-2);
}

.shadow__speed:disabled {
    box-shadow: 0px -2px var(--color-submit-4), 0px 2px var(--color-submit-4), 2px 0px var(--color-submit-4), -2px 0px var(--color-submit-4);
    background-color: var(--color-submit-4);
}

.shadow__col__pointer {
    box-shadow: 0px 4px var(--color-pointer-2), 4px 0px var(--color-pointer-2), -4px 0px var(--color-pointer-2), 0px -4px var(--color-pointer-2),
        -4px -4px var(--color-pointer-3), 0px -8px var(--color-pointer-3), 4px -4px var(--color-pointer-3), -4px -8px var(--color-pointer-4),
        0px -12px var(--color-pointer-4), 4px -8px var(--color-pointer-4);
}

.shadow__row__pointer {
    box-shadow: 0px 4px var(--color-pointer-2), 4px 0px var(--color-pointer-2), -4px 0px var(--color-pointer-2), 0px -4px var(--color-pointer-2),
        -4px -4px var(--color-pointer-3), 0px -8px var(--color-pointer-3), 4px -4px var(--color-pointer-3), -4px -8px var(--color-pointer-4),
        0px -12px var(--color-pointer-4), 4px -8px var(--color-pointer-4);
}

.shadow__counter {
    box-shadow: 0px 4px var(--color-pointer-2), 4px 0px var(--color-pointer-2), -4px 0px var(--color-pointer-2), 0px -4px var(--color-pointer-2),
        -4px -4px var(--color-pointer-3), 0px -8px var(--color-pointer-3), 4px -4px var(--color-pointer-3), -4px -8px var(--color-pointer-4),
        0px -12px var(--color-pointer-4), 4px -8px var(--color-pointer-4);
}

.difficulty__set {
    box-shadow: 0px 4px var(--color-information-2), 4px 0px var(--color-information-2), -4px 0px var(--color-information-2), 0px -4px var(--color-information-2),
        0px 8px var(--color-information-3), 4px 4px var(--color-information-3), -4px 4px var(--color-information-3), 0 12px var(--color-white),
        4px 12px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-information-2), 0px -8px var(--color-information-2),
        4px -4px var(--color-information-2), -4px -8px var(--color-information-1), 4px -8px var(--color-information-1), 8px 4px var(--color-white),
        8px 8px var(--color-white), -8px 8px var(--color-white), -8px 0px var(--color-white), -4px 8px var(--color-white), 8px -4px var(--color-white),
        -8px -4px var(--color-white), 8px -4px var(--color-white), -4px 12px var(--color-white), 8px 0px var(--color-white),
        0px -12px var(--color-information-1);
    background-color: var(--color-information-2);
}

.difficulty__set__next {
    box-shadow: 4px 4px var(--color-white), 4px -4px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-white);
}

.difficulty__set__pre {
    box-shadow: 4px 4px var(--color-white), 4px -4px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-white);
}

.trash__button {
    box-shadow: 0px -4px var(--color-white), 0px 4px var(--color-white), 4px 0px var(--color-white);
}

.time__spend__container {
    box-shadow: 0px 4px var(--color-information-2), 4px 0px var(--color-information-2), -4px 0px var(--color-information-2), 0px -4px var(--color-information-2),
        0px 8px var(--color-information-3), 4px 4px var(--color-information-3), -4px 4px var(--color-information-3), 0 12px var(--color-white),
        4px 12px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-information-2), 0px -8px var(--color-information-2),
        4px -4px var(--color-information-2), -4px -8px var(--color-information-1), 4px -8px var(--color-information-1), 8px 4px var(--color-white),
        8px 8px var(--color-white), -8px 8px var(--color-white), -8px 0px var(--color-white), -4px 8px var(--color-white), 8px -4px var(--color-white),
        -8px -4px var(--color-white), 8px -4px var(--color-white), -4px 12px var(--color-white), 8px 0px var(--color-white),
        0px -12px var(--color-information-1);
    background-color: var(--color-information-2);
}

.time__spend__text {
    box-shadow: 0px -4px var(--color-white), 4px 0px var(--color-white), -4px 0px var(--color-white);
}

.iterations__text {
    box-shadow: 0px -4px var(--color-white), 4px 0px var(--color-white), -4px 0px var(--color-white);
}

.iterations__container {
    box-shadow: 0px 4px var(--color-information-2), 4px 0px var(--color-information-2), -4px 0px var(--color-information-2), 0px -4px var(--color-information-2),
        0px 8px var(--color-information-3), 4px 4px var(--color-information-3), -4px 4px var(--color-information-3), 0 12px var(--color-white),
        4px 12px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-information-2), 0px -8px var(--color-information-2),
        4px -4px var(--color-information-2), -4px -8px var(--color-information-1), 4px -8px var(--color-information-1), 8px 4px var(--color-white),
        8px 8px var(--color-white), -8px 8px var(--color-white), -8px 0px var(--color-white), -4px 8px var(--color-white), 8px -4px var(--color-white),
        -8px -4px var(--color-white), 8px -4px var(--color-white), -4px 12px var(--color-white), 8px 0px var(--color-white),
        0px -12px var(--color-information-1);
    background-color: var(--color-information-2);
}

.setting__option {
    box-shadow: 0px -4px var(--color-github-2), 0px 4px var(--color-github-2), 4px 0px var(--color-github-2), -4px 0px var(--color-github-2),
        -4px 4px var(--color-github-2), -4px -4px var(--color-github-2), 4px 4px var(--color-github-2), 4px -4px var(--color-github-2),
        -8px 0px var(--color-github-2), -8px 4px var(--color-github-3), -4px 8px var(--color-github-3), 4px 8px var(--color-github-3),
        8px 0px var(--color-github-2), 8px 4px var(--color-github-3), 4px -8px var(--color-github-1), -4px -8px var(--color-github-1),
        -8px -4px var(--color-github-1), 8px -4px var(--color-github-1);
    background-color: var(--color-github-2);
}

.line__input {
    box-shadow: 0px -4px var(--color-github-2), 0px 4px var(--color-github-2), 4px 0px var(--color-github-2), -4px 0px var(--color-github-2),
        -4px 4px var(--color-github-2), -4px -4px var(--color-github-2), 4px 4px var(--color-github-2), 4px -4px var(--color-github-2),
        -8px 0px var(--color-github-2), -8px 4px var(--color-github-3), -4px 8px var(--color-github-3), 4px 8px var(--color-github-3),
        8px 0px var(--color-github-2), 8px 4px var(--color-github-3), 4px -8px var(--color-github-1), -4px -8px var(--color-github-1),
        -8px -4px var(--color-github-1), 8px -4px var(--color-github-1);
    background-color: var(--color-github-2);
}

.text__temperature {
    box-shadow: 4px 0px var(--color-github-3), -4px 0px var(--color-github-3), 0px 4px var(--color-github-3);
    background-color: var(--color-github-3);
}

.reset__button {
    box-shadow: 0px 4px var(--color-submit-2), 4px 0px var(--color-submit-2), -4px 0px var(--color-submit-2), 0px -4px var(--color-submit-2),
        0px 8px var(--color-submit-3), 4px 4px var(--color-submit-3), -4px 4px var(--color-submit-3), 0 12px var(--color-white), 4px 12px var(--color-white),
        -4px 4px var(--color-white), -4px -4px var(--color-submit-2), 0px -8px var(--color-submit-2), 4px -4px var(--color-submit-2),
        -4px -8px var(--color-submit-1), 4px -8px var(--color-submit-1), 8px 4px var(--color-white), 8px 8px var(--color-white), -8px 8px var(--color-white),
        -4px 12px var(--color-white), -8px 4px var(--color-white), -8px 0px var(--color-white), -4px 8px var(--color-white), 8px -4px var(--color-white),
        -8px -4px var(--color-white), 8px 0px var(--color-white), 0px -12px var(--color-submit-1);

    background-color: var(--color-submit-2);
}

.reset__button:active {
    background-color: var(--color-submit-3);
    text-align: center;
    box-shadow: 4px 4px var(--color-submit-3), -4px 4px var(--color-submit-3), 0px 4px var(--color-submit-3), 4px 0px var(--color-submit-4),
        -4px 0px var(--color-submit-4), 0px -4px var(--color-submit-4), 0px 8px var(--color-submit-3), 4px 4px var(--color-submit-4),
        -4px 4px var(--color-submit-4), 0 12px var(--color-white), 4px 12px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-white),
        0px -8px var(--color-white), 4px -4px var(--color-white), -4px -8px var(--color-white), 4px -8px var(--color-white), 8px 4px var(--color-white),
        8px 8px var(--color-white), -8px 8px var(--color-white), -4px 12px var(--color-white), -8px 4px var(--color-white), -8px 0px var(--color-white),
        -4px 8px var(--color-white), 8px -4px var(--color-white), -8px -4px var(--color-white), 8px 0px var(--color-white);
    padding-top: 4px;
}

.sudoku__table .invalid {
    width: 36px;
    height: 36px;
    background-color: var(--color-error-2);
    text-align: center;
    box-shadow: 4px 4px var(--color-error-2), -4px 4px var(--color-error-2), 0px 4px var(--color-error-2), 4px 0px var(--color-error-3),
        -4px 0px var(--color-error-3), 0px -4px var(--color-error-3), 0px 8px var(--color-error-2), 4px 4px var(--color-error-3), -4px 4px var(--color-error-3),
        0 12px var(--color-white), 4px 12px var(--color-white), -4px 4px var(--color-white), -4px -4px var(--color-white), 0px -8px var(--color-white),
        4px -4px var(--color-white), -4px -8px var(--color-white), 4px -8px var(--color-white), 8px 4px var(--color-white), 8px 8px var(--color-white),
        -8px 8px var(--color-white), -4px 12px var(--color-white), -8px 4px var(--color-white), -8px 0px var(--color-white), -4px 8px var(--color-white),
        8px -4px var(--color-white), -8px -4px var(--color-white), 8px 0px var(--color-white);
    padding-top: 4px;
    color: var(--color-white);
}

.error__info {
    box-shadow: 0px -4px var(--color-error-2), 0px 4px var(--color-error-2), 4px 0px var(--color-error-2), -4px 0px var(--color-error-2),
        -4px 4px var(--color-error-2), -4px -4px var(--color-error-2), 4px 4px var(--color-error-2), 4px -4px var(--color-error-2),
        -8px 0px var(--color-error-2), -8px 4px var(--color-error-3), -4px 8px var(--color-error-3), 4px 8px var(--color-error-3), 8px 0px var(--color-error-2),
        8px 4px var(--color-error-3), 4px -8px var(--color-error-1), -4px -8px var(--color-error-1), -8px -4px var(--color-error-1),
        8px -4px var(--color-error-1);
}