@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@200;300;400;500;600;700&family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap');


/* For Mobile */
@media screen and (max-width: 540px) {
    .view {
        width: 400px;
    }
    .puzzle {
        width: 270px;
        height: 270px;
    }
    .puzzle input {
        text-align: center;
        font-size: 15px;
        width: 30px;
        height: 30px;
        border: 1px #808080 solid;
    }
    .keyboard {
        width: 270px;
        height: 40px;
    }

    .btn-class{
        text-align: center;
        font-size: 15px;
        width: 27px;
        height: 30px;
        border: 1px #808080 solid;
    }
}

/* For Tablets */
@media screen and (min-width: 540px) and (max-width: 780px) {
    .view {
        width: 600px;
    }
    .puzzle {
        width: 360px;
        height: 360px;
    }
    .puzzle input {
        text-align: center;
        font-size: 20px;
        width: 40px;
        height: 40px;
        border: 1px #808080 solid;
    }
    .keyboard {
        width: 360px;
        height: 40px;
    }

    .btn-class{
        text-align: center;
        font-size: 20px;
        width: 36px;
        height: 40px;
        border: 1px #808080 solid;
    }
}

/* For Laptops */
@media screen and (min-width: 780px)  {
    .view {
        width: 600px;
    }
    .puzzle {
        width: 360px;
        height: 360px;
    }
    .puzzle input {
        text-align: center;
        font-size: 25px;
        width: 40px;
        height: 40px;
        border: 1px #808080 solid;
    }

    .keyboard {
        width: 360px;
        height: 40px;
    }

    .btn-class{
        text-align: center;
        font-size: 20px;
        width: 36px;
        height: 36px;
        border: 1px #808080 solid;
    }
}


* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border-spacing: 0;
}

html {
    font-family: 'Roboto', sans-serif;
    background-color: #FDF2E9;
}

.intro {
    color: #1B4F72;
    font-size: 35px;
    letter-spacing: 1px;
    margin: 30px 0px 10px 0px;
}

.instruction-1, .instruction-2, .instruction-3, .description {
    font-size: 18px;
    color: #1B4F72;
    letter-spacing: 0.5px;
}

.instruction-3 {
    margin: 0px 0px 15px 0px;
}

.description {
    margin: 0px 0px 15px 0px;
}

.decorator-elem {
    font-weight: bold;
}

.sudoku-solver {
    margin: auto;
    width: 70%;
}


.odd-section {
    background: #d3d3d3;
}

.empty-el {
    color: #4848d4;
}