style.css

:root{
    --firstCol: rgb(210, 233, 255);
    --secondCol: #0E2038;
    --thirdCol: rgb(152, 188, 232);
    --fourthCol: #c4e3f8; /*li:nth-child(odd)*/
    --fifthCol: #c1c6d6; /*hover*/
    --sixthCol: #607796; /*crossout*/
    --backImg: url('SL-day-mode.png');
    --column-width: 20%;
}

.nightMode{
    --firstCol: #0E2038;
    --secondCol: #d2e9ff;
    --thirdCol: #243f5f;
    /*--thirdCol: #243f5f;*/
    --fourthCol: #1d3452;
    --fifthCol: #535869; /*hover*/
    --sixthCol: #607796; /*crossout*/
    --backImg: url('SL-night-mode.png');
    --column-width: 20%;
}

body {
    background-color: var(--firstCol);
    font-family: "DM Sans";
    font-size: 135%;
    display: grid;
    margin: 0;
    padding: 0;
    /*min-height: 100vh;*/
}

h1 {
    margin: 0;
    background-color: var(--thirdCol);
    color: var(--secondCol);
}


#menuBurger {
    color: var(--thirdCol);
    margin: 6px;
}

#bar1, #bar2, #bar3 {
    width: 30px;
    height: 4px;
    margin: 6px;
    border-radius: 15px;
    background-color: var(--thirdCol);
    transition: transform 0.3s ease;
}

#header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 calc(var(--column-width) + 2%);

    background-color: var(--thirdCol);
}

#LogIn {
    background-color: var(--fourthCol);
}

.navPages {
    display: flex;
    justify-content: center;
    background-color: var(--fourthCol);
    /*border: 1px solid var(--thirdCol);*/
    font-family: "DM Sans";
    font-size: 60%;
    overflow: hidden;
    padding-bottom: 10px;
}

.navPages ul {
    list-style: none;
    padding: 0px;
    display: flex;
    margin: 15px 0 0 0;
}

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

.navPages label {
    border-radius: 8px;
    border: 2px solid var(--secondCol);
    transition: 100ms ease;
    box-shadow: 5px 5px 0 0 var(--thirdCol);
    border-color: var(--thirdCol);
    color: var(--secondCol);
    background-color: var(--fifthCol);
    cursor: pointer;
    border-radius: 5px;
    padding: 10px;

}

.navPages label:hover {
    background-color: var(--fourthCol);
    border-radius: 5px;
    padding-bottom: 40px;
/*background-color: var(--fifthCol);*/
}

.navPages input[type="radio"]:checked + label {
    /*background-color: var(--firstCol);*/
    background-color: var(--firstCol);
    padding-bottom: 40px;
    border-radius: 5px;
}


button:hover {
    background-color: greenyellow;
    /*background: var(--fifthCol);*/
    border: 2px solid var(--fifthCol);
}

p, button, #modeSwitchBtn {
    color: var(--secondCol);
}

button {
    background-color: var(--thirdCol);
    color: var(--secondCol);
    border-radius: 60px;
    outline: none;
    border: none;
    cursor: pointer;
    margin: 2px;
    font-size: 90%;
}

button:active {
    background-color: var(--fifthCol);
    border: 1px solid var(--firstCol);
}


#row {
    display: flex;
    justify-content: space-between;
    font-size: 80%;
    margin: 0.7% 21%;

}

#inputBox, #inputBoxQuantity {
    display: flex;
    outline: none;
    border: 1px solid var(--fifthCol);
    border-radius: 100px;
    cursor: text;
    padding-left: 3%;
}
#inputBox {
    width: calc(100% - var(--column-width));
}

#inputBoxQuantity {
    margin-right: 6px;
    margin-left: 10px;
    width: 15%;
}

.crossBtn, .addBtn, .substrBtn, .deleteBtn, .editBtn {
    float: right;
    justify-content: space-between;
}

.shoppingList li {
    padding: 12px calc(var(--column-width) + 2%) 12px calc(var(--column-width) - 2%); /**cruuuuutch :C*/
    list-style: none;
    color: var(--secondCol);
    overflow-y: auto;
    overflow-x: auto;
    /* box-shadow: 0 0 5px rgba(0,0,0,0.1); */
}

.shoppingList li:nth-child(odd) {
    background-color: var(--fourthCol);
}

.shoppingList li.bought {
    text-decoration: line-through;
    color: var(--sixthCol);
}

.left-column, .right-column {
    position: fixed;
    top: 0;
    bottom: 0;
    width: var(--column-width);
    background-image: var(--backImg);
}

.left-column {
    left: 0;
}

.right-column {
    right: 0;
}

#end {
    position:fixed;
    bottom: 2%;
    margin: 0 calc(var(--column-width) + 2%);
}

.emoji {
    cursor: pointer;
}

#modeSwitchBtn {
    margin: 0 var(--column-width);
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px 20px;
    z-index: 1000; /*ensure it is on top of other elements*/
}


@media screen and (max-width: 650px) {
    :root {
        --column-width: 10%;
    }

    .nightMode{
        --column-width: 10%;
    }

    .navPages.show {
        display: block;
    }
    
    #menuBurger {
        display: block;
        cursor: pointer;
    }

    #bar1, #bar2, #bar3 {
        background-color: white;
    }
    .change #bar1 {
        transform: rotate(-45deg) translate(-10px, 6px);
    }
    
    .change #bar2 {
        opacity: 0;
        /* transform: rotate(45deg) translate(-4px, -3px); */
    }
    
    .change #bar3 {
        transform: rotate(45deg) translate(-8px, -4px);
    }

    .make_navPages_visible .navPages {
        display: block;
    }

    #menuBurger:hover {
        background-color: greenyellow;
        /*background: var(--fifthCol);*/
        border: 2px solid var(--fifthCol);
    }

    .navPages {
        margin: 0;
        padding: 0;
        display: none;
        flex-direction: column;
        align-items: flex-start;
        padding: 0 var(--column-width);
    }

    .navPages ul {
        width: 100%;
        flex-direction: column;

    }

    .navPages li {
        text-align: center;
    }

    .navPages label {
        display: flex;
        font-size: 150%;
        color: rgb(103, 58, 58);
        background-color: rgb(169, 156, 209);

        border-radius: none;
        border: none;
        transition: none;
        box-shadow: none;
        border-color: none;
        /* color: var(--secondCol);
        background-color: var(--thirdCol); */
        cursor: pointer;
        border-radius: 0;
        padding: 5px;

    }

    .navPages label:hover {
        background-color: var(--fourthCol);
        border-radius: 0;
        padding: 5px;
        /* here show navPages? */


    /*background-color: var(--fifthCol);*/
    }
    
    .navPages input[type="radio"]:checked + label {
        /*background-color: var(--firstCol);*/
        background-color: var(--firstCol);
        padding: 8px;
        border-radius: 0px;
    }

    h1 { 
        /* when we see the menu using the smartphone */
        display: none;
    }
}