@import url('https://fonts.googleapis.com/css2?family=Cairo&display=swap');
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@500&display=swap');
.list-bar {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(180deg, #6B73FF 0%, #000DFF 100%);

}

.div2-list-bar-base {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.div2-list-bar-levels-hidden {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.div2-list-bar-base a {
    color: #F9F9F9;
    text-align: right;
    font-family: Cairo;
    font-size: 24px;
    font-style: normal;
    font-weight: 500;
    line-height: normal;
}

.div2-list-bar-levels-hidden {
    display: none;
}

.div2-list-bar-levels-hidden div {
    display: flex;
    justify-content: space-between;
}

.div2-list-bar-levels-hidden div i {
    display: none;
}

.div2-list-bar-levels-hidden div:hover .div2-list-bar-levels-hidden div i {
    display: block;
}

.bar-level i {
    display: none;
}

.bar-level:hover {
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.16);
    cursor: pointer;
}

.bar-level:hover .bar-level i {
    display: block;

}

.visible {
    display: none;
}

.div1-list-bar {
    display: flex;
    justify-content: left;
    cursor: pointer;
}

.container-bar {
    padding-top: 43px;
    padding-left: 16px;
    padding-right: 16px;
}
body {
    letter-spacing: -0.36px;
    font-family: Cairo;
}

.container-side-left {
    padding-left: 49px;
    padding-right: 48px;
}

.Margin-Bottom {
    padding-bottom: 16px;
}

.Margin-Bottom2 {
    padding-bottom: 64.31px;
}

.side-left-Question-text p,
.ex-1 p {
    text-align: right;
    color: #4F4B45;
    font-family: Cairo;
    font-size: 24px;
    font-weight: 800;
    line-height: 44px;
}

table {
    border-collapse: collapse;
    margin: 0 auto;
    border-radius: 8px;
}

td {
    border: 2px solid #000DFF;
    text-align: left;
    padding: 16px;
}

/* ----------------------------------------- */

.side-left {
    display: flex;
    flex-direction: column;
}

.side-left-head {
    background-color: #407BFF;
    height: 162px;
    padding-right: 34px;
    width: 100%;
}

.side-left-head h1 {
    padding-top: 44px;
    /* padding-bottom: 71px; */
    color: #FFF;
    font-family: Cairo;
    font-size: 40px;
    font-weight: 700;
}

.side-left-head p {
    color: #FFF;
    font-size: 18px;
    font-weight: 800;
    padding-bottom: 20px;
    padding-top: 16px;
}

.side-left-content {
    background-color: #EDF1FC;
    letter-spacing: -0.36px;
}

.side-left-content h2 {
    padding-top: 14px;
    color: #60F;
    font-size: 30px;
    font-weight: 700;
}

.sub1-address {
    color: #F00;
    font-family: Cairo;
    font-size: 34px;
    font-weight: 800;
}

.side-left-content .sub1-p {
    color: #1A1A1A;
    text-align: right;
    font-family: Cairo;
    font-size: 24px;
    font-weight: 600;
}

.home-img-ex-flex {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    flex-wrap: wrap;
    padding-left: 150px;
}

.home-img {
    display: flex;
    justify-content: center;
    transition: all 0.5s;
}

.home-img:hover {
    transform: scale(1.1);
}

.sub1-sub-address {
    color: #0070C0;
    text-align: right;
    font-family: Cairo;
    font-size: 32px;
    font-weight: 700;
}

.sub1-sub-sub-address {
    color: #0095FF;
    text-align: right;
    font-family: Cairo;
    font-size: 28px;
    font-weight: 600;
}

.Div-sub1-flex {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
}

.example-item {
    color: #F00;
    text-align: right;
    font-family: Cairo;
    font-size: 28px;
    font-weight: 600;
}

.reg-button {
    width: 100%;
    height: 290px;
    background-color: #fff;
    border-radius: 18px;
    box-shadow: 0px 4px 4px 0px rgba(0, 0, 0, 0.25);

}

.reg-button-head {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    font-family: Cairo;
    padding-top: 24px;
    padding-left: 23px;
    padding-right: 17px;

}

.reg-button-head h3 {
    color: #00C;
    font-size: 24px;
    font-weight: 700;
    padding-bottom: 4px;
}

.reg-button-head-img {
    padding-left: 24px;
    transition: all 0.5s;
}

.reg-button-head-img:hover {
    transform: scale(1.2);

}

.reg-button-under-head {
    display: flex;
    justify-content: flex-start;
    font-family: Cairo;
    color: #4F4B45;
    font-size: 18px;
    font-weight: 500;
    padding-right: 16px;
    padding-bottom: 26px;
}

.reg-button-background {
    width: 930px;
    height: 132px;
    border-radius: 18px;
    background: #9DCCFF;
    margin-right: 24px;
    color: #4F4B45;
    font-family: Cairo;
    font-size: 18px;
    font-weight: 500;
    text-align: start;
    padding: 15px;
    margin-bottom: 24px;
}

.Duplicates {
    color: #0070C0;
    text-align: right;
    font-family: Cairo;
    font-size: 24px;
    font-weight: 700;
}

.Duplicates-p-item {
    display: flex;
    flex-direction: row;
    gap: 2px;
    color: #4F4B45;
    font-family: Cairo;
    font-size: 18px;
    font-weight: 500;
}

/* span {
    color: #F90;
    font-size:18px ;
 } */
span .Duplicates-p-item-a,
.Duplicates-p-item-b {
    padding-right: 20px;
}

.Duplicates-p-item-father {
    display: flex;
    justify-content: space-between;
}

.Flex-inCenter {
    display: flex;
    gap: 2px;
    /* justify-content: right; */
    align-items: center;
}

/* ------------------------------------- */

.ex-1,
.ex-surprise {
    border-radius: 18px;
    background: #FFF;
    box-shadow: 0px 4px 4px 0px rgba(0, 0, 0, 0.25);
    width: 100%;
    border: 1px solid white;
}

.side-left-Question-text p {
    color: #1A1A1A;
    text-align: right;
    font-family: Cairo;
    font-size: 24px;
    font-style: normal;
    font-weight: 800;
    line-height: 44px;
}

.ex-1 h3 {
    color: #F00;
}

.ex-1-content {
    color: #4F4B45;
    text-align: right;
    font-family: Cairo;
    font-size: 18px;
    font-weight: 500;
    padding: 16px 16.5px 15px 16.5px;
}

.ex-1-content table {
    margin-top: 16px;
}

.Display {
    display: none;
}

/* -------------------------------- */

.main-The-Solve {
    display: none;
}

.The-Solve h3 {
    color: #0AD172;
    text-align: right;
    font-family: Cairo;
    font-size: 24px;
    font-weight: 600;
}

.between span {
    display: block;
    width: 95%;
    height: 2px;
    background-color: rgba(129, 129, 129, 0.40);
    margin-right: 22px;

}

.Center {
    text-align: center;
}

.declear {
    color: #0AD172;
    text-align: right;
    font-size: 18px;
    font-weight: 500;
    padding-top: 15px;
    padding-bottom: 16px;
}

.display-solve {
    width: 110px;
    height: 42px;
    background-color: #000DFF;
    border-radius: 40px;
    color: #FFF;
    font-family: Cairo;
    font-size: 18.236px;
    font-weight: 500;
    line-height: 42px;
    cursor: pointer;
    opacity: 0.8;
    transition: all 0.5s;
    margin-bottom: 24px;
    margin-top: 32px;
    /* margin-right: 90%; */
    font-family: 'Cairo', sans-serif;
}

.display-solve-js {

    margin-right: 90%;
    display: none;

}

.display-solve:hover {
    opacity: 1;
}

.show {
    padding-right: 15px;
}

/* ----------------------------------------- */
.buttons-under-lines {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding-bottom: 16px;
}

.buttons-under-lines span {
    display: block;
    width: 32.7px;
    height: 10px;
    border-radius: 8px;
    cursor: pointer;

}

.active-now {
    background: #2196F3;
}

.no-active {
    background-color: #C7D3EB;
}

/* ------------------------------------ */
.buttons-under-examples {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-top: 71px;
    margin-bottom: 55px;
}

.next-lesson {
    width: 120px;
    height: 42px;
    background-color: #000DFF;
    border-radius: 40px;
    border: 1px solid #000DFF;
    opacity: 0.8;
    transition: all .5s;
}

.next-lesson a {
    text-decoration: none;
    color: #FFF;
    font-family: Cairo;
    font-size: 18.236px;
    font-weight: 500;
}

.next-lesson:hover {
    opacity: 1;
}

/* --------------------------------------------------------------- */
.side-left-Question-text {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    /* padding-top: 14px; */
}

.Question-text-item1 h3 {
    color: #F00;
    text-align: right;
    font-family: Cairo;
    font-size: 28px;
    font-weight: 600;
    line-height: 60px
}

.Question-text-item1-flex {
    display: flex;
    flex-direction: row;
}


.num {
    /* display: block; */
    color: #F90;
    font-family: Cairo;
    font-size: 26px;
    font-weight: 700;
    line-height: 44px;
}



/* ----------------------------------------------------------- */
.side-left-choose {
    margin-top: 40px;
}

.choose-item {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 16px;
}

.choose-item-content {
    height: 48px;
    /* width: 100%; */
    background-color: #fff;
    border-radius: 16px;
    border: 1px solid #000DFF;
    display: flex;
    /* justify-content: flex-end; */
    align-items: center;
    gap: 8px;
    padding: 8px;
    position: relative;
}

.choose-item-content p {
    color: #1A1A1A;
    text-align: right;
    font-family: Cairo;
    font-size: 24px;
    font-weight: 800;
    width: 276px;
}

.choose-item-content-circle input {
    /* padding-top: 25px; */
    cursor: pointer;
}

.choose-item-tables {
    display: flex;
    align-items: baseline;
}

.choose-item-table-father {
    display: flex;
    flex-direction: column;
    /* gap: 270px; */
}

.choose-item-table1-father,
.choose-item-table2-father {
    display: flex;
    gap: 570px;
}

.choose-item-table1-father:first-child,
.choose-item-table2-father:first-child {
    margin-bottom: 100px;
    margin-top: 16px;
}

.this-table {
    width: 0px;
    height: 0px;
    border: 0px;
    margin-top: 48px;
    margin-bottom: 48px;
}

/* ------------------------------------ */

.confirm {
    width: 100%;
    height: 42.1px;
    border-radius: 40.524px;
    background-color: #000DFF;
    color: wheat;
    font-family: Cairo;
    font-size: 18px;
    font-weight: 500;
    border: 1px solid #000DFF;
    opacity: 0.8;
    transition: all 0.5s;
    margin-bottom: 16px;
}

.confirm:hover {
    opacity: 1;
    cursor: pointer;
}

/* .equation mrow {
    color: #1A1A1A;
    text-align: right;
    font-family: Monda;
    font-size: 24px;
    font-weight: 400;
    letter-spacing: 0.96px;
} */
.math-identifier,
math mi,
math mo,
math mrow,
math mfrac,
math msup,
.equation {
    color: #1A1A1A;
    /* text-align: right; */
    font-family: "Times New Roman", Times, serif;
    font-size: 24px;
    font-weight: 700;
    line-height: normal;
    letter-spacing: 0.96px;
    /* display: block; */
    text-align: center;
}

.equation {
    text-align: right;
}
.choose-item-eq .choose-item-content
{
    height: 100px;
    width: 340px
}
.choose-item-small 
{

    display: flex;
   flex-direction: column;
    /* justify-content: space-around; */
    gap: 20px;
}
.choose-item-small-item1, .choose-item-small-item2
{
    display:flex;
    flex-direction: column;
    gap: 20px;

}

@media screen and (min-width:401px) and (max-width:1200px) {
    .ex-1 {

        padding-bottom: 32px;
    }

    .container-side-left {
        padding-left: 16px;
        padding-right: 16px;
    }

    .choose-item {
        display: flex;
        flex-direction: column;
    }

    .home-img-ex-flex {
        display: flex;
        flex-direction: row;
    }

    .home-img-ex-flex .equation {
        text-align: center;
    }

    .Duplicates-p-item {
        margin-bottom: 10px;
    }

    .side-left-head {
        padding-right: 16px;
    }

    .choose-item-content {
        width: 100%;
    }

    .choose-item-content p {
        font-size: 18px;
    }

    .side-left-Question-text {
        display: block;
    }

    .sub1-address {
        font-size: 24px;
    }

    .side-left-content .sub1-p {
        font-size: 18px;
    }

    .sub1-sub-address {
        font-size: 24px;
    }

    .sub1-sub-sub-address {
        font-size: 20px;
    }

    .side-left-Question-text p {
        font-size: 18px;
    }

    .num {
        font-size: 18px;
    }

    .math-identifier,
    math mi,
    math mo,
    math mrow,
    math mfrac,
    math msup,
    .equation {
        font-size: 18px;
    }

    .ex-1 p {
        font-size: 18px;
    }

    .side-left-head h1 {
        font-size: 34px;
    }

    .Flex-inCenter .sub1-p {
        padding-top: 5px;
    }
}